Shivanand Lad | Scholars@Duke

Shivanand Lad
Associate Professor of Neurosurgery

Dr. Nandan Lad is a neurosurgeon, scientist, and entrepreneur and currently an Associate Professor at Duke University Medical Center with a focus in Neuromodulation and Neurorestoration. He is Director of the Duke NeuroInnovations Program, a systematic approach to medical device innovation to large unmet clinical needs.

He completed his MD and PhD in Biochemistry at Chicago Medical School and his neurosurgical residency training at Stanford with fellowships in Surgical Innovation and Functional Neurosurgery. Dr. Lad currently serves on the boards of several privately held companies.

Neurotrophin biology; Neuroregeneration; Bioengineering; Medical Device Design; Clinical Trials; National & institutional neurosurgical outcomes analysis.

Current Appointments & Affiliations

Associate Professor of Neurosurgery, Neurosurgery, Neurosurgery 2018
Associate Professor in the Department of Mechanical Engineering and Materials Science, Mechanical Engineering and Materials Science, Pratt School of Engineering 2017
Faculty Network Member of the Duke Institute for Brain Sciences, Duke Institute for Brain Sciences, University Institutes and Centers 2011
Core Faculty in Innovation & Entrepreneurship, Duke Innovation & Entrepreneurship, Institutes and Provost's Academic Units 2018

Contact Information

200 Trent Drive, Blue Zone, Su, Durham, NC 27710
DUMC 3807, Durham, NC 27710
nandan.lad@duke.edu (919) 681-1973
ladlabneuro.org
ladneurosurgery.com

Background
Education, Training, & Certifications
- Neurosurgery Resident, Stanford University 2005 - 2011
- Sterotactic & Functional Neurosurgery Fellow, Stanford University 2008 - 2009
- Biodesign Innovation Fellow, Stanford University 2007 - 2008
- General Surgery Internship, Stanford University 2004 - 2005
- M.D., Rosalind Franklin University of Medicine and Science 2004
- Ph.D., Rosalind Franklin University of Medicine and Science 2004
Duke Appointment History
- Associate Professor of Neurosurgery, Neurosurgery, Neurosurgery 2016 - 2018
- Assistant Professor of Neurosurgery, Neurosurgery, Neurosurgery 2015 - 2016
- Instructor, Temporary in the Department of Surgery, Neurosurgery, Neurosurgery 2011
Recognition
In the News
- SEP 13, 2016 Clinical Practice Today
  
  A Challenging Diagnosis in a Patient With Metastatic Lung Cancer
- AUG 16, 2016 Clinical Practice Today
  
  Chronic Foot, Ankle Pain After Lumbar Decompression Surgery
- NOV 1, 2015
  
  Trying a New Pulse for Pain Relief
- JUN 4, 2015
  
  MRI Technology Reveals Deep Brain Pathways in Unprecedented Detail
- AUG 27, 2014
  
  Surgical Complications of DBS No Higher Risk for Older Parkinson’s Patients
- SEP 5, 2013
  
  Spinal Fusion Material, BMP, Increases Risk of Benign Tumors, Not Cancer
Research
Selected Grants
- HF-10 Analysis for PDN-1 awarded by Nevro Corp 2018 - 2023
- Scalar Closed-Loop STN/GPi DBS Based on Evoked and Spontaneous Potentials awarded by Department of Health and Human Services 2017 - 2022
- ReActiv8-B awarded by Mainstay Medical Ltd. 2017 - 2021
- IPA - Pagadala awarded by Durham Veterans Affairs Medical Center 2019 - 2020
- IPA - Allison Spell awarded by Durham Veterans Affairs Medical Center 2018 - 2020
- IPA - George De Castro awarded by Durham Veterans Affairs Medical Center 2018 - 2020
- IPA - Katelyn Ripple awarded by Durham Veterans Affairs Medical Center 2018 - 2020
- IPA Lexia Zidanyue Yang awarded by Durham Veterans Affairs Medical Center 2018 - 2020
- IPA - Beiyu Liu awarded by Durham Veterans Affairs Medical Center 2018 - 2020
- IPA - Hui-Jie Lee awarded by Durham Veterans Affairs Medical Center 2018 - 2020
- TARGET- Targeted SCS (DRG) Stimulation awarded by St. Jude Medical Inc. 2016 - 2019
- Validation of Novel Therapeutic Approach for Leptomeningeal Metastases awarded by Minnetronix, Inc 2018 - 2019
- Extent of Resection and Spinal Stabilization and Reconstruction in Spinal Tumors awarded by Medtronic, Inc. 2015 - 2019
- Validation of a Novel Fungicidal Approach for Cryptococcal Meningitis awarded by Minnetronix, Inc 2018 - 2019
- Collaborative research effort to study patient outcomes using publicly available claims databases and additional sources of data with focus on neuromodulation. awarded by St. Jude Medical Inc. 2017 - 2018
- Validation of a Novel Therapeutic Approach for Cryptococcal Meningitis awarded by Minnetronix, Inc 2017 - 2018
- Development of a novel ventricular catheter for hydrocephalus awarded by North Carolina Biotechnology Center 2017 - 2018
- Human Fresh Tissue Lab Agreement awarded by Abbott Laboratories 2017 - 2018
- Human Fresh Tissue Lab Agreement awarded by Nevro Corp 2017
- Directed Chemotherapy Delivery for Leptomeningeal Metastases awarded by Minnetronix, Inc 2016 - 2017
- Patient Outcomes using publicly available claims with focus on Neuromodulation awarded by St. Jude Medical Inc. 2016 - 2017
- Cryptococcus Neoformans awarded by Minnetronix, Inc 2015 - 2017
- Mechanisms of Parkinsonian Impulsivity in Human Subthalamic Nucleus awarded by National Institutes of Health 2014 - 2017
- Enhanced Design Experiences for Duke BME Students awarded by National Institutes of Health 2011 - 2017
- Cryptococcus Neoformans awarded by Minnetronix, Inc 2015 - 2016
- Neuromodulation Project awarded by Medtronic, Inc. 2014 - 2016
- PROMISE study awarded by Medtronic, Inc. 2014 - 2016
- Neuromodulation Fellowship awarded by St. Jude Medical Inc. 2014 - 2016
- SENSE Study for the Treatment of Chronic Low Back and Leg Pain awarded by St. Jude Medical Inc. 2014 - 2015
- Human Fresh Tissue Lab awarded by St. Jude Medical Inc. 2014
Publications & Artistic Works
Selected Publications
- Book Sections
  - Rahimpour, S, and Lad, SP. "Traumatic brain injury and potential for neuromodulation." In Translational Research in Traumatic Brain Injury, 353-363. April 21, 2016.
- Conference Papers
  - Farber, SH, Han, J, Gallis, J, Lokhnygina, Y, Collins, T, and Lad, S. "Modeling Healthcare Expenditures associated with Implantable Neurostimulation for Headache Disorders." April 2016. Link to Item
  - III, PFW, Kent, A, Dalal, N, Karst, E, Sharan, A, Staats, P, and Lad, S. "Longer Delays from Pain Diagnosis to Spinal Cord Stimulation Result in Higher Post-Implant Healthcare Utilization." August 2015. Link to Item
  - Patel, VV, Cook, S, Kent, A, Dalal, N, Karst, E, and Lad, S. "Impact of Tailoring Spinal Cord Stimulation Therapy on Clinical Outcomes." August 2015. Link to Item
  - Lad, SP, Hatef, J, Gallis, J, Huang, K, and Lokhnygina, Y. "Neurostimulation for the Treatment of Headache Disorders: A Large, Retrospective Cohort Analysis." June 2015. Link to Item
  - Babu, R, Thomas, S, Hazzard, M, Bagley, J, Karikari, I, Bagley, C, Gottfried, O, Isaacs, R, Patil, C, Boakye, M, and Lad, S. "Treatment Of Intraspinal Abscess: Comparison Of Outcomes Following Surgical And Conservative Management." August 2013. Link to Item
  - Bagley, J, Babu, R, Owens, T, Adamson, C, and Lad, S. "Predictors And Implications Of Facial Nerve Dysfunction After Acoustic Neuroma Resection: A National Study." August 2013. Link to Item
  - Hazzard, MA, Babu, R, Lad, S, Huang, K, Bagley, J, Owens, T, Isaacs, R, Ugiliweneza, B, Patil, C, and Boakye, M. "Comparison Of Management Options For Vertebral Compression Fractures And Impact On US Healthcare Resource Utilization." August 2013. Link to Item
  - Choi, J, Babu, R, Bagley, JH, Agarwal, V, Huang, MI, Ugiliweneza, B, Patil, CG, Boakye, M, and Lad, SP. "157 Utilization of Spinal Cord Stimulation in Patients with Failed Back Surgery Syndrome." August 2012. Full Text
  - Lad, SP, Bagley, JH, Ugiliweneza, B, Babu, R, Karikari, I, Patil, CG, and Boakye, M. "134 BMP and Cancer Risk." August 2012. Full Text
  - Lad, SP, Deissenhammer, F, Lee, MB, Guzman, R, Darsaut, TE, and Steinberg, GK. "Cerebrospinal Proteomic Analysis after Aneurysmal Subarachnoid Hemorrhage: The Role of New Biomarkers: 934." August 2009. Full Text
  - Lad, SP, and Kalanithi, P. "Deep Brain Stimulation (DBS) Surgery: National Trends." August 2009. Link to Item
  - Kalanithi, P, Patil, C, Lad, SP, and Boakye, M. "National complications and outcomes after posterior lumbar fusion for degenerative spondylolisthesis." April 2008. Full Text Link to Item
  - Lad, SP, Patil, CG, Lad, EM, Ho, C, and Boakye, M. "Visual loss after spine surgery: A population based study." April 2008. Full Text Link to Item
  - Patil, CG, Prevedello, DM, Lad, SP, Vance, ML, Thorner, MO, Katznelson, L, and Jr, LER. "Long-term recurrences of Cushing's disease after initial successful transsphenoidal surgery." April 2008. Full Text Link to Item
  - Lad, SP, Patil, CG, Lad, EM, Santarelli, JG, and Boakye, M. "National Trends in Vertebral Augmentation Procedures for the Treatment of Vertebral Compression Fractures in the United States." July 2007. Full Text
  - Patil, CG, Lad, SP, Patil, TS, Santarelli, J, and Boakye, M. "National inpatient complications and outcomes after surgery for spinal metastasis from 1993 to 2002." July 2007. Link to Item
- Journal Articles
  - Elsamadicy, AA, Kemeny, H, Adogwa, O, Sankey, EW, Goodwin, CR, Yarbrough, CK, Lad, SP, Karikari, IO, and Gottfried, ON. "Influence of racial disparities on patient-reported satisfaction and short- and long-term perception of health status after elective lumbar spine surgery." Journal of Neurosurgery. Spine 29, no. 1 (July 2018): 40-45. Full Text
  - Elsamadicy, AA, Yang, S, Sergesketter, AR, Ashraf, B, Charalambous, L, Kemeny, H, Ejikeme, T, Ren, X, Pagadala, P, Parente, B, Xie, J, and Lad, SP. "Prevalence and Cost Analysis of Complex Regional Pain Syndrome (CRPS): A Role for Neuromodulation." Neuromodulation : Journal of the International Neuromodulation Society 21, no. 5 (July 2018): 423-430. (Review) Full Text
  - Lad, SP, Yang, S, Xie, J, Farjat, A, Pagadala, P, and Parente, B. "Down the Rabbit Hole: Specialty Influence on SCS Outcomes." Neuromodulation : Journal of the International Neuromodulation Society 21, no. 4 (June 2018): 417-420. (Letter) Full Text
  - Charalambous, LT, Premji, A, Tybout, C, Hunt, A, Cutshaw, D, Elsamadicy, AA, Yang, S, Xie, J, Giamberardino, C, Pagadala, P, Perfect, JR, and Lad, SP. "Prevalence, healthcare resource utilization and overall burden of fungal meningitis in the United States." Journal of Medical Microbiology 67, no. 2 (February 2018): 215-227. Full Text
  - Calabrese, E, Adil, SM, Cofer, G, Perone, CS, Cohen-Adad, J, Lad, SP, and Johnson, GA. "Postmortem diffusion MRI of the entire human spinal cord at microscopic resolution." Neuroimage : Clinical 18 (January 2018): 963-971. Full Text
  - Elsamadicy, AA, Sergesketter, A, Ren, X, Mohammed Qasim Hussaini, S, Laarakker, A, Rahimpour, S, Ejikeme, T, Yang, S, Pagadala, P, Parente, B, Xie, J, and Lad, SP. "Drivers and Risk Factors of Unplanned 30-Day Readmission Following Spinal Cord Stimulator Implantation." Neuromodulation : Journal of the International Neuromodulation Society 21, no. 1 (January 2018): 87-92. Full Text
  - Farber, SH, Han, JL, Elsamadicy, AA, Hussaini, Q, Yang, S, Pagadala, P, Parente, B, Xie, J, and Lad, SP. "Long-term Cost Utility of Spinal Cord Stimulation in Patients with Failed Back Surgery Syndrome." Pain Physician 20, no. 6 (September 2017): E797-E805.
  - Farber, SH, Han, JL, Petraglia Iii, FW, Gramer, R, Yang, S, Pagadala, P, Parente, B, Xie, J, Petrella, JR, and Lad, SP. "Increasing Rates of Imaging in Failed Back Surgery Syndrome Patients: Implications for Spinal Cord Stimulation." Pain Physician 20, no. 6 (September 2017): E969-E977.
  - "The Neurostimulation Appropriateness Consensus Committee (NACC): Recommendations on Bleeding and Coagulation Management in Neurostimulation Devices." Neuromodulation: Technology at the Neural Interface 20, no. 4 (June 2017): 407-407. Full Text
  - Elsamadicy, AA, Farber, SH, Yang, S, Hussaini, SMQ, Murphy, KR, Sergesketter, A, Suryadevara, CM, Pagadala, P, Parente, B, Xie, J, and Lad, SP. "Impact of Insurance Provider on Overall Costs in Failed Back Surgery Syndrome: A Cost Study of 122,827 Patients." Neuromodulation : Journal of the International Neuromodulation Society 20, no. 4 (June 2017): 354-360. Full Text
  - Han, JL, Murphy, KR, Hussaini, SMQ, Yang, S, Parente, B, Xie, J, Pagadala, P, and Lad, SP. "Explantation Rates and Healthcare Resource Utilization in Spinal Cord Stimulation." Neuromodulation : Journal of the International Neuromodulation Society 20, no. 4 (June 2017): 331-339. Full Text
  - Hussaini, SMQ, Murphy, KR, Han, JL, Elsamadicy, AA, Yang, S, Premji, A, Parente, B, Xie, J, Pagadala, P, and Lad, SP. "Specialty-Based Variations in Spinal Cord Stimulation Success Rates for Treatment of Chronic Pain." Neuromodulation : Journal of the International Neuromodulation Society 20, no. 4 (June 2017): 340-347. Full Text
  - Murphy, KR, Han, JL, Hussaini, SMQ, Yang, S, Parente, B, Xie, J, and Lad, SP. "The Volume-Outcome Effect: Impact on Trial-to-Permanent Conversion Rates in Spinal Cord Stimulation." Neuromodulation : Journal of the International Neuromodulation Society 20, no. 3 (April 2017): 256-262. Full Text
  - Farber, SH, Murphy, KR, Suryadevara, CM, Babu, R, Yang, S, Feng, L, Xie, J, Perfect, JR, and Lad, SP. "Comparing outcomes of early, late, and non-surgical management of intraspinal abscess." Journal of Clinical Neuroscience : Official Journal of the Neurosurgical Society of Australasia 36 (February 2017): 64-71. Full Text
  - Murphy, KR, Han, JL, Yang, S, Hussaini, SMQ, Elsamadicy, AA, Parente, B, Xie, J, Pagadala, P, and Lad, SP. "Prevalence of Specific Types of Pain Diagnoses in a Sample of United States Adults." Pain Physician 20, no. 2 (February 2017): E257-E268.
  - Deer, TR, Lamer, TJ, Pope, JE, Falowski, SM, Provenzano, DA, Slavin, K, Golovac, S, Arle, J, Rosenow, JM, Williams, K, McRoberts, P, Narouze, S, Eldabe, S, Lad, SP, De Andrés, JA, Buchser, E, Rigoard, P, Levy, RM, Simpson, B, and Mekhail, N. "The Neurostimulation Appropriateness Consensus Committee (NACC) Safety Guidelines for the Reduction of Severe Neurological Injury." Neuromodulation : Journal of the International Neuromodulation Society 20, no. 1 (January 2, 2017): 15-30. Full Text
  - Deer, TR, Narouze, S, Provenzano, DA, Pope, JE, Falowski, SM, Russo, MA, Benzon, H, Slavin, K, Pilitsis, JG, Alo, K, Carlson, JD, McRoberts, P, Lad, SP, Arle, J, Levy, RM, Simpson, B, and Mekhail, N. "The Neurostimulation Appropriateness Consensus Committee (NACC): Recommendations on Bleeding and Coagulation Management in Neurostimulation Devices." Neuromodulation : journal of the International Neuromodulation Society 20, no. 1 (January 2, 2017): 51-62. Full Text
  - Deer, TR, Provenzano, DA, Hanes, M, Pope, JE, Thomson, SJ, Russo, MA, McJunkin, T, Saulino, M, Raso, LJ, Lad, SP, Narouze, S, Falowski, SM, Levy, RM, Baranidharan, G, Golovac, S, Demesmin, D, Witt, WO, Simpson, B, Krames, E, and Mekhail, N. "The Neurostimulation Appropriateness Consensus Committee (NACC) Recommendations for Infection Prevention and Management." Neuromodulation : Journal of the International Neuromodulation Society 20, no. 1 (January 2, 2017): 31-50. Full Text
  - Berger, M, Ponnusamy, V, Greene, N, Cooter, M, Nadler, JW, Friedman, A, McDonagh, DL, Laskowitz, DT, Newman, MF, Shaw, LM, Warner, DS, Mathew, JP, James, ML, and MAD-PIA Investigators, . "The Effect of Propofol vs. Isoflurane Anesthesia on Postoperative Changes in Cerebrospinal Fluid Cytokine Levels: Results from a Randomized Trial." Frontiers in Immunology 8 (January 2017): 1528-. Full Text
  - Pearson, JM, Hickey, PT, Lad, SP, Platt, ML, and Turner, DA. "Local Fields in Human Subthalamic Nucleus Track the Lead-up to Impulsive Choices." Frontiers in Neuroscience 11 (January 2017): 646-null. Full Text
  - Lad, SP, Petraglia, FW, Kent, AR, Cook, S, Murphy, KR, Dalal, N, Karst, E, Staats, P, and Sharan, A. "Longer Delay From Chronic Pain to Spinal Cord Stimulation Results in Higher Healthcare Resource Utilization." Neuromodulation : journal of the International Neuromodulation Society 19, no. 5 (July 2016): 469-476. Full Text
  - Rahimpour, S, and Lad, SP. "Surgical Options for Atypical Facial Pain Syndromes." Neurosurgery clinics of North America 27, no. 3 (July 2016): 365-370. (Review) Full Text
  - Berger, M, Nadler, JW, Friedman, A, McDonagh, DL, Bennett, ER, Cooter, M, Qi, W, Laskowitz, DT, Ponnusamy, V, Newman, MF, Shaw, LM, Warner, DS, Mathew, JP, James, ML, and MAD-PIA trial team, . "The Effect of Propofol Versus Isoflurane Anesthesia on Human Cerebrospinal Fluid Markers of Alzheimer's Disease: Results of a Randomized Trial." Journal of Alzheimer'S Disease : Jad 52, no. 4 (April 2016): 1299-1310. Full Text Open Access Copy
  - Farber, SH, Hatef, J, Han, JL, Marky, AH, Xie, J, Huang, K, Verla, T, Lokhnygina, Y, Collins, TA, and Lad, SP. "Implantable Neurostimulation for Headache Disorders: Effect on Healthcare Utilization and Expenditures." Neuromodulation : Journal of the International Neuromodulation Society 19, no. 3 (April 2016): 319-328. Full Text
  - Han, JL, Loriaux, DB, Tybout, C, Kinon, MD, Rahimpour, S, Runyon, SL, Hopkins, TJ, Boortz-Marx, RL, and Lad, SP. "Thoracic Nerve Root Entrapment by Intrathecal Catheter Coiling: Case Report and Review of the Literature." Pain physician 19, no. 3 (March 2016): E499-E504. (Review)
  - Verla, T, Adogwa, O, Toche, U, Farber, SH, Petraglia, F, Murphy, KR, Thomas, S, Fatemi, P, Gottfried, O, Bagley, CA, and Lad, SP. "Impact of Increasing Age on Outcomes of Spinal Fusion in Adult Idiopathic Scoliosis." World Neurosurgery 87 (March 2016): 591-597. Full Text
  - Farber, SH, Thomas, S, Pace, G, and Lad, SP. "Letter to the Editor: Innovations in neurosurgery." Journal of neurosurgery 124, no. 2 (February 2016): 585-586. (Letter) Full Text
  - Loriaux, D, Cobb, MI-PH, Zomorodi, A, Gonzalez, F, Smith, TP, and Lad, SP. "Inferior Vena Cava Filter Thrombosis in the Postoperative Neurosurgical Setting: Case Report and Review of the Literature." Cureus 8, no. 3 (January 2016): e529-. Full Text
  - Petraglia, FW, Farber, SH, Gramer, R, Verla, T, Wang, F, Thomas, S, Parente, B, and Lad, SP. "The Incidence of Spinal Cord Injury in Implantation of Percutaneous and Paddle Electrodes for Spinal Cord Stimulation." Neuromodulation : Journal of the International Neuromodulation Society 19, no. 1 (January 2016): 85-90. Full Text
  - Petraglia, FW, Farber, SH, Han, JL, Verla, T, Gallis, J, Lokhnygina, Y, Parente, B, Hickey, P, Turner, DA, and Lad, SP. "Comparison of Bilateral vs. Staged Unilateral Deep Brain Stimulation (DBS) in Parkinson's Disease in Patients Under 70 Years of Age." Neuromodulation : Journal of the International Neuromodulation Society 19, no. 1 (January 2016): 31-37. Full Text
  - Ortega, A, Sarmiento, JM, Patil, C, Mukherjee, D, Ugiliweneza, B, Nuño, M, Lad, S, and Boakye, M. "Comparative Analysis of Inpatient and Outpatient Interspinous Process Device Placement for Lumbar Spinal Stenosis." Journal of Neurological Surgery. Part A, Central European Neurosurgery 76, no. 6 (November 2015): 443-450. Full Text
  - Ortega, A, Sarmiento, JM, Patil, C, Mukherjee, D, Ugiliweneza, B, Nuño, M, Lad, S, and Boakye, M. "Comparative Analysis of Inpatient and Outpatient Interspinous Process Device Placement for Lumbar Spinal Stenosis." Journal of Neurological Surgery, Part A: Central European Neurosurgery 76, no. 6 (November 1, 2015): 443-450. Full Text
  - Calabrese, E, Hickey, P, Hulette, C, Zhang, J, Parente, B, Lad, SP, and Johnson, GA. "Postmortem diffusion MRI of the human brainstem and thalamus for deep brain stimulator electrode localization." Human Brain Mapping 36, no. 8 (August 2015): 3167-3178. Full Text
  - Huang, KT, Hazzard, M, Thomas, S, Chagoya, G, Berg, RWV, Adogwa, O, Bagley, CA, Isaacs, R, Gottfried, ON, and Lad, SP. "Differences in the outcomes of anterior versus posterior interbody fusion surgery of the lumbar spine: a propensity score-controlled cohort analysis of 10,941 patients." Journal of clinical neuroscience : official journal of the Neurosurgical Society of Australasia 22, no. 5 (May 2015): 848-853. Full Text
  - Huang, KT, Hazzard, M, Thomas, S, Chagoya, G, Berg, RWV, Adogwa, O, Bagley, CA, Isaacs, R, Gottfried, ON, and Lad, SP. "Differences in the outcomes of anterior versus posterior interbody fusion surgery of the lumbar spine: A propensity score-controlled cohort analysis of 10,941 patients." Journal of Clinical Neuroscience 22, no. 5 (May 1, 2015): 848-853. Full Text
  - Schiraldi, M, Patil, CG, Mukherjee, D, Ugiliweneza, B, Nuño, M, Lad, SP, and Boakye, M. "Effect of insurance and racial disparities on outcomes in traumatic brain injury." Journal of neurological surgery. Part A, Central European neurosurgery 76, no. 3 (May 2015): 224-232. Full Text
  - Verla, T, Marky, A, Farber, H, Petraglia, FW, Gallis, J, Lokhnygina, Y, Parente, B, Hickey, P, Turner, DA, and Lad, SP. "Impact of advancing age on post-operative complications of deep brain stimulation surgery for essential tremor." Journal of clinical neuroscience : official journal of the Neurosurgical Society of Australasia 22, no. 5 (May 2015): 872-876. Full Text
  - "Correction: Evaluation of Intradural Stimulation Efficiency and Selectivity in a Computational Model of Spinal Cord Stimulation." PLOS ONE 10, no. 4 (April 7, 2015): e0123485-e0123485. Full Text
  - Adogwa, O, Huang, K, Hazzard, M, Chagoya, G, Owens, R, Cheng, J, Ugiliweneza, B, Boakye, M, and Lad, SP. "Outcomes after cervical laminectomy with instrumented fusion versus expansile laminoplasty: a propensity matched study of 3185 patients." Journal of clinical neuroscience : official journal of the Neurosurgical Society of Australasia 22, no. 3 (March 2015): 549-553. Full Text
  - Rahimpour, S, Turner, DA, and Lad, SP. "Deep brain stimulation for Parkinson disease in elderly individuals—reply." JAMA neurology 72, no. 3 (March 2015): 368-. (Letter) Full Text
  - Ye, W, and Norris, JM. "Deep Brain Stimulation for Parkinson Disease in Elderly Individuals." JAMA Neurology 72, no. 3 (March 1, 2015): 367-367. Full Text
  - Bronstein, JM, Tagliati, M, McIntyre, C, Chen, R, Cheung, T, Hargreaves, EL, Israel, Z, Moffitt, M, Montgomery, EB, Stypulkowski, P, Shils, J, Denison, T, Vitek, J, Volkman, J, Wertheimer, J, and Okun, MS. "The Rationale Driving the Evolution of Deep Brain Stimulation to Constant-Current Devices." Neuromodulation: Technology at the Neural Interface 18, no. 2 (February 2015): 85-89. Full Text
  - Huang, KT, Martin, J, Marky, A, Chagoya, G, Hatef, J, Hazzard, MA, Thomas, SM, Lokhnygina, Y, and Lad, SP. "A national survey of spinal cord stimulation trial-to-permanent conversion rates." Neuromodulation : Journal of the International Neuromodulation Society 18, no. 2 (February 2015): 133-139. Full Text
  - Saulino, M, Guillemette, S, Leier, J, and Hinnenthal, J. "Medical Cost Impact of Intrathecal Baclofen Therapy for Severe Spasticity." Neuromodulation: Technology at the Neural Interface 18, no. 2 (February 2015): 141-149. Full Text
  - Adogwa, O, Huang, K, Hazzard, M, Chagoya, G, Owens, R, Cheng, J, Ugiliweneza, B, Boakye, M, and Lad, SP. "Outcomes after cervical laminectomy with instrumented fusion versus expansile laminoplasty: A propensity matched study of 3185 patients." Journal of Clinical Neuroscience 22, no. 3 (January 1, 2015): 549-553. Full Text
  - Huang, KT, Martin, J, Marky, A, Chagoya, G, Hatef, J, Hazzard, MA, Thomas, SM, Lokhnygina, Y, and Lad, SP. "A national survey of spinal cord stimulation trial-to-permanent conversion rates." Neuromodulation 18, no. 2 (January 1, 2015): 133-139. (Review) Full Text
  - Martin, JR, Adogwa, O, Brown, CR, Kuchibhatla, M, Bagley, CA, Lad, SP, and Gottfried, ON. "Experience with intrawound vancomycin powder for posterior cervical fusion surgery." Journal of Neurosurgery. Spine 22, no. 1 (January 2015): 26-33. Full Text
  - Rahimpour, S, Turner, DA, and Lad, SP. "In reply." JAMA Neurology 72, no. 3 (January 1, 2015): 368-. (Letter)
  - Verla, T, Marky, A, Farber, H, Petraglia, FW, Gallis, J, Lokhnygina, Y, Parente, B, Hickey, P, Turner, DA, and Lad, SP. "Impact of advancing age on post-operative complications of deep brain stimulation surgery for essential tremor." Journal of Clinical Neuroscience 22, no. 5 (January 1, 2015): 872-876. Full Text
  - Babu, R, Thomas, S, Hazzard, MA, Lokhnygina, YV, Friedman, AH, Gottfried, ON, Isaacs, RE, Boakye, M, Patil, CG, Bagley, CA, Haglund, MM, and Lad, SP. "Morbidity, mortality, and health care costs for patients undergoing spine surgery following the ACGME resident duty-hour reform: Clinical article." Journal of Neurosurgery. Spine 21, no. 4 (October 2014): 502-515. Full Text
  - Babu, R, and Lad, SP. "Our continuing experience with duty-hours regulation and its effect on quality of care and education Response." JOURNAL OF NEUROSURGERY-SPINE 21, no. 4 (October 2014): 500-501. Link to Item
  - DeLong, MR, Huang, KT, Gallis, J, Lokhnygina, Y, Parente, B, Hickey, P, Turner, DA, and Lad, SP. "Effect of advancing age on outcomes of deep brain stimulation for Parkinson disease." Jama Neurology 71, no. 10 (October 2014): 1290-1295. Full Text
  - Adogwa, O, Martin, JR, Huang, K, Verla, T, Fatemi, P, Thompson, P, Cheng, J, Kuchibhatla, M, Lad, SP, Bagley, CA, and Gottfried, ON. "Preoperative serum albumin level as a predictor of postoperative complication after spine fusion." Spine 39, no. 18 (August 2014): 1513-1519. Full Text
  - Babu, R, Thomas, S, Hazzard, MA, Friedman, AH, Sampson, JH, Adamson, C, Zomorodi, AR, Haglund, MM, Patil, CG, Boakye, M, and Lad, SP. "Worse outcomes for patients undergoing brain tumor and cerebrovascular procedures following the ACGME resident duty-hour restrictions." Journal of Neurosurgery 121, no. 2 (August 2014): 262-276. Full Text
  - Deer, TR, Mekhail, N, Petersen, E, Krames, E, Staats, P, Pope, J, Saweris, Y, Lad, SP, Diwan, S, Falowski, S, Feler, C, Slavin, K, Narouze, S, Merabet, L, Buvanendran, A, Fregni, F, Wellington, J, Levy, RM, and Neuromodulation Appropriateness Consensus Committee, . "The appropriate use of neurostimulation: stimulation of the intracranial and extracranial space and head for chronic pain. Neuromodulation Appropriateness Consensus Committee." Neuromodulation : journal of the International Neuromodulation Society 17, no. 6 (August 2014): 551-570. Full Text
  - Deer, TR, Mekhail, N, Provenzano, D, Pope, J, Krames, E, Leong, M, Levy, RM, Abejon, D, Buchser, E, Burton, A, Buvanendran, A, Candido, K, Caraway, D, Cousins, M, DeJongste, M, Diwan, S, Eldabe, S, Gatzinsky, K, Foreman, RD, Hayek, S, Kim, P, Kinfe, T, Kloth, D, Kumar, K, Rizvi, S, Lad, SP, Liem, L, Linderoth, B, Mackey, S, McDowell, G, McRoberts, P, Poree, L, Prager, J, Raso, L, Rauck, R, Russo, M, Simpson, B, Slavin, K, Staats, P, Stanton-Hicks, M, Verrills, P, Wellington, J, Williams, K, North, R, and Neuromodulation Appropriateness Consensus Committee, . "The appropriate use of neurostimulation of the spinal cord and peripheral nervous system for the treatment of chronic pain and ischemic diseases: the Neuromodulation Appropriateness Consensus Committee." Neuromodulation : Journal of the International Neuromodulation Society 17, no. 6 (August 2014): 515-550. Full Text
  - Patil, CG, Sarmiento, JM, Ugiliweneza, B, Mukherjee, D, Nuño, M, Liu, JC, Walia, S, Lad, SP, and Boakye, M. "Interspinous device versus laminectomy for lumbar spinal stenosis: a comparative effectiveness study." The Spine Journal 14, no. 8 (August 2014): 1484-1492. Full Text
  - Patil, CG, Sarmiento, JM, Ugiliweneza, B, Mukherjee, D, Nuño, M, Liu, JC, Walia, S, Lad, SP, and Boakye, M. "Interspinous device versus laminectomy for lumbar spinal stenosis: a comparative effectiveness study." The Spine Journal : Official Journal of the North American Spine Society 14, no. 8 (August 2014): 1484-1492. Full Text
  - Ugiliweneza, B, Kong, M, Nosova, K, Huang, KT, Babu, R, Lad, SP, and Boakye, M. "Spinal Surgery." Spine 39, no. 15 (July 2014): 1235-1242. Full Text
  - Ugiliweneza, B, Kong, M, Nosova, K, Huang, KT, Babu, R, Lad, SP, and Boakye, M. "Spinal surgery: variations in health care costs and implications for episode-based bundled payments." Spine 39, no. 15 (July 2014): 1235-1242. Full Text
  - Lad, SP, Babu, R, Bagley, JH, Choi, J, Bagley, CA, Huh, BK, Ugiliweneza, B, Patil, CG, and Boakye, M. "Utilization of spinal cord stimulation in patients with failed back surgery syndrome." Spine 39, no. 12 (May 20, 2014). Full Text
  - Lad, SP, Babu, R, Bagley, JH, Choi, J, Bagley, CA, Huh, BK, Ugiliweneza, B, Patil, CG, and Boakye, M. "Utilization of spinal cord stimulation in patients with failed back surgery syndrome." Spine 39, no. 12 (May 2014): E719-E727. Full Text
  - Lad, SP, Babu, R, Ugiliweneza, B, Patil, CG, and Boakye, M. "Surgery for Spinal Stenosis." Spine 39, no. 12 (May 2014): 978-987. Full Text
  - Lad, SP, Babu, R, Ugiliweneza, B, Patil, CG, and Boakye, M. "Surgery for spinal stenosis: long-term reoperation rates, health care cost, and impact of instrumentation." Spine 39, no. 12 (May 2014): 978-987. Full Text
  - Mukherjee, D, Sarmiento, JM, Nosova, K, Boakye, M, Lad, SP, Black, KL, Nuño, M, and Patil, CG. "Effectiveness of radiotherapy for elderly patients with anaplastic gliomas." Journal of clinical neuroscience : official journal of the Neurosurgical Society of Australasia 21, no. 5 (May 2014): 773-778. Full Text
  - Huang, KT, Adogwa, O, Babu, R, Lad, SP, Bagley, CA, and Gottfried, ON. "Radiological evidence of spontaneous spinal arthrodesis in patients with lower lumbar spondylolisthesis." Spine 39, no. 8 (April 15, 2014): 656-663. Full Text
  - Huang, KT, Adogwa, O, Babu, R, Lad, SP, Bagley, CA, and Gottfried, ON. "Radiological evidence of spontaneous spinal arthrodesis in patients with lower lumbar spondylolisthesis." Spine 39, no. 8 (April 2014): 656-663. Full Text
  - Song, Z, Viisanen, H, Meyerson, BA, Pertovaara, A, and Linderoth, B. "Efficacy of Kilohertz-Frequency and Conventional Spinal Cord Stimulation in Rat Models of Different Pain Conditions." Neuromodulation: Technology at the Neural Interface 17, no. 3 (April 2014): 226-235. Full Text
  - Sampson, JH, Lad, SP, Herndon, JE, Starke, RM, and Kondziolka, D. "SEER insights." J Neurosurg 120, no. 2 (February 2014): 297-298. Full Text Link to Item
  - Sampson, JH, Lad, SP, Herndon, JE, Starke, RM, and Kondziolka, D. "SEER insights." Journal of Neurosurgery 120, no. 2 (February 1, 2014): 297-298. Full Text
  - Martin, JR, Adogwa, O, Brown, CR, Bagley, CA, Richardson, WJ, Lad, SP, Kuchibhatla, M, and Gottfried, ON. "Experience with intrawound vancomycin powder for spinal deformity surgery." Spine 39, no. 2 (January 15, 2014): 177-184. Full Text
  - Babu, R, Zomorodi, AR, and Lad, SP. "In reply." Neurosurgery 74, no. 1 (January 2014): E146-E147. (Letter) Full Text Link to Item
  - Babu, R, and Lad, SP. "Response." Journal of Neurosurgery: Spine 21, no. 4 (January 1, 2014): 500-501. Full Text
  - Hazzard, MA, Huang, KT, Toche, UN, Ugiliweneza, B, Patil, CG, Boakye, M, and Lad, SP. "Comparison of Vertebroplasty, Kyphoplasty, and Nonsurgical Management of Vertebral Compression Fractures and Impact on US Healthcare Resource Utilization." Asian Spine Journal 8, no. 5 (2014): 605-605. Full Text
  - Howell, B, Lad, SP, and Grill, WM. "Evaluation of intradural stimulation efficiency and selectivity in a computational model of spinal cord stimulation." PloS one 9, no. 12 (January 2014): e114938-. Full Text
  - Kalanithi, PSA, Arrigo, RT, Tran, P, Gephart, MH, Shuer, L, Fisher, R, and Boakye, M. "Rehospitalization and Emergency Department Use Rates Before and After Vagus Nerve Stimulation for Epilepsy: Use of State Databases to Provide Longitudinal Data Across Multiple Clinical Settings." Neuromodulation: Technology at the Neural Interface 17, no. 1 (January 2014): 60-65. Full Text
  - Martin, JR, Adogwa, O, Brown, CR, Bagley, CA, Richardson, WJ, Lad, SP, Kuchibhatla, M, and Gottfried, ON. "Experience with intrawound vancomycin powder for spinal deformity surgery." Spine 39, no. 2 (January 2014): 177-184. Full Text
  - Lad, SP, Babu, R, Baker, AA, Ugiliweneza, B, Kong, M, Bagley, CA, Gottfried, ON, Isaacs, RE, Patil, CG, and Boakye, M. "Complications, reoperation rates, and health-care cost following surgical treatment of lumbar spondylolisthesis." Journal of Bone and Joint Surgery - Series A 95, no. 21 (November 6, 2013). Full Text
  - Lad, SP, Babu, R, Baker, AA, Ugiliweneza, B, Kong, M, Bagley, CA, Gottfried, ON, Isaacs, RE, Patil, CG, and Boakye, M. "Complications, reoperation rates, and health-care cost following surgical treatment of lumbar spondylolisthesis." The Journal of Bone and Joint Surgery. American Volume 95, no. 21 (November 2013): e162-null. Full Text
  - Hu, J, Ugiliweneza, B, Meyer, K, Lad, SP, and Boakye, M. "Trend and geographic analysis for traumatic brain injury mortality and cost based on MarketScan database." J Neurotrauma 30, no. 20 (October 15, 2013): 1755-1761. Full Text Link to Item
  - Babu, R, Hazzard, MA, Huang, KT, Ugiliweneza, B, Patil, CG, Boakye, M, and Lad, SP. "Outcomes of percutaneous and paddle lead implantation for spinal cord stimulation: a comparative analysis of complications, reoperation rates, and health-care costs." Neuromodulation : Journal of the International Neuromodulation Society 16, no. 5 (September 2013): 418-426. Full Text
  - Babu, R, Hazzard, MA, Huang, KT, Ugiliweneza, B, Patil, CG, Boakye, M, and Lad, SP. "Outcomes of Percutaneous and Paddle Lead Implantation for Spinal Cord Stimulation: A Comparative Analysis of Complications, Reoperation Rates, and Health-Care Costs." Neuromodulation: Technology at the Neural Interface 16, no. 5 (September 2013): 418-427. Full Text
  - Deogaonkar, M, Liker, M, and Lad, S. "Safety in the Use of Dexmedetomidine (Precedex) for Deep Brain Stimulation Surgery: Our Experience in 23 Randomized Patients COMMENTS." NEUROMODULATION 16, no. 5 (September 2013): 406-406. Link to Item
  - Huang, KT, Hazzard, MA, Babu, R, Ugiliweneza, B, Grossi, PM, Huh, BK, Roy, LA, Patil, C, Boakye, M, and Lad, SP. "Insurance disparities in the outcomes of spinal cord stimulation surgery." Neuromodulation 16, no. 5 (September 1, 2013): 428-434. Full Text
  - Huang, KT, Hazzard, MA, Babu, R, Ugiliweneza, B, Grossi, PM, Huh, BK, Roy, LA, Patil, C, Boakye, M, and Lad, SP. "Insurance disparities in the outcomes of spinal cord stimulation surgery." Neuromodulation 16, no. 5 (September 2013): 428-434. Full Text Link to Item
  - Lad, S. "Comments." Neuromodulation 16, no. 5 (September 1, 2013): 406-. Full Text
  - Ko, MJ, Morris, CK, Kim, JW, Lad, SP, Arrigo, RT, and Lad, EM. "Orbital fractures: national inpatient trends and complications." Ophthalmic Plastic and Reconstructive Surgery 29, no. 4 (July 2013): 298-303. Full Text
  - Patel, S, Nuño, M, Mukherjee, D, Nosova, K, Lad, SP, Boakye, M, Black, KL, and Patil, CG. "Trends in surgical use and associated patient outcomes in the treatment of acoustic neuroma." World Neurosurgery 80, no. 1-2 (July 2013): 142-147. Full Text
  - Lad, EM, Lad, SP, Ung, C, Jain, AT, Steinberg, GK, and Gaynon, MW. "Complete visual recovery after incipient crao due to ocular hypoperfusion in a patient with moyamoya disease." Retinal Cases and Brief Reports 7, no. 3 (June 1, 2013): 248-251. Full Text
  - Lad, SP, Babu, R, Rhee, MS, Franklin, RL, Ugiliweneza, B, Hodes, J, Nimjee, SM, Zomorodi, AR, Smith, TP, Friedman, AH, Patil, CG, and Boakye, M. "Long-term economic impact of coiling vs clipping for unruptured intracranial aneurysms." Neurosurgery 72, no. 6 (June 2013): 1000-1011. Full Text
  - Lad, SP, Huang, KT, Bagley, JH, Hazzard, MA, Babu, R, Owens, TR, Ugiliweneza, B, Patil, CG, and Boakye, M. "Disparities in the outcomes of lumbar spinal stenosis surgery based on insurance status." Spine 38, no. 13 (June 2013): 1119-1127. Full Text
  - Lad, SP, Bagley, JH, Kenney, KT, Ugiliweneza, B, Kong, M, Bagley, CA, Gottfried, ON, Isaacs, RE, Patil, CG, and Boakye, M. "Racial disparities in outcomes of spinal surgery for lumbar stenosis." Spine (Phila Pa 1976) 38, no. 11 (May 15, 2013): 927-935. Full Text Link to Item
  - Babu, R, Owens, TR, Thomas, S, Karikari, IO, Grunch, BH, Moreno, JR, Lad, SP, and Bagley, CA. "Timing of tracheostomy after anterior cervical spine fixation." The Journal of Trauma and Acute Care Surgery 74, no. 4 (April 2013): 961-966. Full Text
  - Lad, SP, Umeano, OA, Karikari, IO, Somasundaram, A, Bagley, CA, Gottfried, ON, Isaacs, RE, Ugiliweneza, B, Patil, CG, Huang, K, and Boakye, M. "Racial disparities in outcomes after spinal cord injury." J Neurotrauma 30, no. 6 (March 15, 2013): 492-497. Full Text Link to Item
  - Mehta, AI, Babu, R, Sharma, R, Karikari, IO, Grunch, BH, Owens, TR, Agarwal, VJ, Sampson, JH, Lad, SP, Friedman, AH, Kuchibhatla, M, Bagley, CA, and Gottfried, ON. "Thickness of subcutaneous fat as a risk factor for infection in cervical spine fusion surgery." J Bone Joint Surg Am 95, no. 4 (February 20, 2013): 323-328. Full Text Link to Item
  - Ko, MJ, Morris, CK, Kim, JW, Lad, SP, Arrigo, RT, and Lad, EM. "Orbital fractures: National inpatient trends and complications." Ophthalmic Plastic and Reconstructive Surgery 29, no. 4 (2013): 298-303. Full Text
  - Lad, SP, Babu, R, Rhee, MS, Franklin, RL, Ugiliweneza, B, Hodes, J, Nimjee, SM, Zomorodi, AR, Smith, TP, Friedman, AH, Patil, CG, and Boakye, M. "Long-term economic impact of coiling vs clipping for unruptured intracranial aneurysms." Neurosurgery 72, no. 6 (2013): 1000-1011. Full Text
  - Lad, SP, Bagley, JH, Karikari, IO, Babu, R, Ugiliweneza, B, Kong, M, Isaacs, RE, Bagley, CA, Gottfried, ON, Patil, CG, and Boakye, M. "Cancer after spinal fusion: The role of bone morphogenetic protein." Neurosurgery 73, no. 3 (2013): 440-449. Full Text
  - Lad, SP, Bagley, JH, Karikari, IO, Babu, R, Ugiliweneza, B, Kong, M, Isaacs, RE, Bagley, CA, Gottfried, ON, Patil, CG, and al, E. "Cancer after Spinal Fusion: The role of Bone Morphogenetic Protein (BMP)." Neurosurgery (2013). Full Text
  - Lad, SP, Bagley, JH, Kenney, KT, Ugiliweneza, B, Kong, M, Bagley, CA, Gottfried, ON, Isaacs, RE, Patil, CG, and Boakye, M. "Racial disparities in outcomes of spinal surgery for lumbar stenosis." Spine 38, no. 11 (2013): 927-935. Full Text
  - Lad, SP, Huang, KT, Bagley, JH, Hazzard, MA, Babu, R, Owens, TR, Ugiliweneza, B, Patil, CG, and Boakye, M. "Disparities in the outcomes of lumbar spinal stenosis surgery based on insurance status." Spine 38, no. 13 (2013): 1119-1127. Full Text
  - Mukherjee, D, Manuel Sarmiento, J, Nosova, K, Boakye, M, Lad, SP, Black, KL, Nuño, M, and Patil, CG. "Effectiveness of radiotherapy for elderly patients with anaplastic gliomas." Journal of Clinical Neuroscience (2013).
  - Mukherjee, D, Patil, CG, Todnem, N, Ugiliweneza, B, Nuño, M, Kinsman, M, Lad, SP, and Boakye, M. "Racial disparities in Medicaid patients after brain tumor surgery." Journal of Clinical Neuroscience : Official Journal of the Neurosurgical Society of Australasia 20, no. 1 (January 2013): 57-61. Full Text
  - Nosova, K, Nuño, M, Mukherjee, D, Lad, SP, Boakye, M, Black, KL, and Patil, CG. "Urinary tract infections in meningioma patients: Analysis of risk factors and outcomes." Journal of Hospital Infection 83, no. 2 (2013): 132-139. Full Text
  - Patel, S, Nuño, M, Mukherjee, D, Nosova, K, Lad, SP, Boakye, M, Black, KL, and Patil, CG. "Trends in surgical use and associated patient outcomes in the treatment of acoustic neuroma." World Neurosurgery 80, no. 1-2 (2013): 142-147. Full Text
  - Shivanand, L. "Comments." Neuromodulation 16, no. 3 (2013): 225--. Full Text
  - Veeravagu, A, Lad, SP, Camara-Quintana, JQ, Jiang, B, and Shuer, L. "Neurosurgical interventions for spondyloepiphyseal dysplasia congenita: Clinical presentation and assessment of the literature." World Neurosurgery 80, no. 3-4 (2013): 437.E1-437.E8. Full Text
  - Veeravagu, A, Lad, SP, Camara-Quintana, JQ, Jiang, B, and Shuer, L. "Neurosurgical Interventions for Spondyloepiphyseal Dysplasia Congenita: Clinical Presentation and Assessment of the Literature." World Neurosurgery (2013). Full Text
  - Veeravagu, A, Ludwig, C, Camara-Quintana, JQ, Jiang, B, Lad, N, and Shuer, L. "Fungal infection of a ventriculoperitoneal shunt: Histoplasmosis diagnosis and treatment." World Neurosurgery 80, no. 1-2 (2013): 222e5-222e13. Full Text
  - Veeravagu, A, Ludwig, C, Camara-Quintana, JQ, Jiang, B, Lad, N, and Shuer, L. "Fungal Infection of a Ventriculoperitoneal Shunt: Histoplasmosis Diagnosis and Treatment." World Neurosurgery (2013). Full Text
  - Gephart, MGH, Zygourakis, CC, Arrigo, RT, Kalanithi, PSA, Lad, SP, and Boakye, M. "Venous thromboembolism after thoracic/thoracolumbar spinal fusion." World Neurosurgery 78, no. 5 (November 2012): 545-552. Full Text
  - Boakye, M, Arrigo, RT, Hayden Gephart, MG, Zygourakis, CC, and Lad, S. "Retrospective, propensity score-matched cohort study examining timing of fracture fixation for traumatic thoracolumbar fractures." J Neurotrauma 29, no. 12 (August 10, 2012): 2220-2225. Full Text Link to Item
  - Lad, SP, Hegen, H, Gupta, G, Deisenhammer, F, and Steinberg, GK. "Proteomic biomarker discovery in cerebrospinal fluid for cerebral vasospasm following subarachnoid hemorrhage." Journal of Stroke and Cerebrovascular Diseases : the Official Journal of National Stroke Association 21, no. 1 (January 2012): 30-41. (Review) Full Text
  - Lad, SP, Shannon, L, and Byrne, RW. "Incidental aneurysms in temporal lobe epilepsy surgery: Report of three cases and a review of the literature." British Journal of Neurosurgery 26, no. 1 (2012): 69-74. Full Text
  - Nosova, K, Nuño, M, Mukherjee, D, Lad, SP, Boakye, M, Black, KL, and Patil, CG. "Urinary tract infections in meningioma patients: analysis of risk factors and outcomes." Journal of Hospital Infection (2012). Full Text
  - Nuño, M, Mukherjee, D, Elramsisy, A, Nosova, K, Lad, SP, Boakye, M, Yu, JS, Black, KL, and Patil, CG. "Racial and gender disparities and the role of primary tumor type on inpatient outcomes following craniotomy for brain metastases." Annals of Surgical Oncology 19, no. 8 (2012): 2657-2663. Full Text
  - Nuño, M, Mukherjee, D, Elramsisy, A, Nosova, K, Lad, SP, Boakye, M, Yu, JS, Black, KL, and Patil, CG. "Racial and Gender Disparities and the Role of Primary Tumor Type on Inpatient Outcomes Following Craniotomy for Brain Metastases." Annals of Surgical Oncology (2012): 1-7. Full Text
  - Patil, CG, Alexander, AL, Gephart, MGH, Lad, SP, Arrigo, RT, and Boakye, M. "A population-based study of inpatient outcomes after operative management of nontraumatic intracerebral hemorrhage in the United States." World Neurosurgery 78, no. 6 (2012): 640-645. Full Text
  - Lad, SP, Nathan, JK, and Boakye, M. "Trends in the use of bone morphogenetic protein as a substitute to autologous iliac crest bone grafting for spinal fusion procedures in the United States." Spine (Phila Pa 1976) 36, no. 4 (February 15, 2011): E274-E281. Full Text Link to Item
  - Kalanithi, P, Schubert, RD, Lad, SP, Harris, OA, and Boakye, M. "Hospital costs, incidence, and inhospital mortality rates of traumatic subdural hematoma in the United States: Clinical article." Journal of Neurosurgery 115, no. 5 (2011): 1013-1018. Full Text
  - Lad, SP, Chapman, CH, Vaninetti, M, Steinman, L, Green, A, and Boakye, M. "Socioeconomic trends in hospitalization for multiple sclerosis." Neuroepidemiology 35, no. 2 (August 2010): 93-99. Full Text Link to Item
  - Lad, SP, Kalanithi, PS, Patil, CG, Itthimathin, P, Batya, S, Bronte-Stewart, H, Boakye, M, and Henderson, JM. "Socioeconomic Trends in Deep Brain Stimulation (DBS) Surgery." Neuromodulation : Journal of the International Neuromodulation Society 13, no. 3 (July 2010): 182-186. Full Text
  - Lad, SP, Nathan, JK, Schubert, RD, and Boakye, M. "Trends in median, ulnar, radial, and brachioplexus nerve injuries in the United States." Neurosurgery 66, no. 5 (May 2010): 953-960. Full Text
  - Patil, CG, Veeravagu, A, Lad, SP, and Boakye, M. "Craniotomy for resection of meningioma in the elderly: a multicentre, prospective analysis from the National Surgical Quality Improvement Program." Journal of Neurology, Neurosurgery, and Psychiatry 81, no. 5 (May 2010): 502-505. Full Text
  - Lad, EM, Jain, A, Lad, SP, Lin, RC, Alcorn, DM, and Moshfeghi, DM. "Orbital recurrence of B-progenitor acute lymphoblastic leukemia in a child." J Pediatr Ophthalmol Strabismus 47, no. 1 (January 2010): 46-50. Full Text Link to Item
  - Lad, N. "Comments." Neurosurgery 67, no. 6 (2010): 1554--. Full Text
  - Lad, SP, Kalanithi, PS, Arrigo, RT, Patil, CG, Nathan, JK, Boakye, M, and Henderson, JM. "A socioeconomic survey of spinal cord stimulation (SCS) surgery." Neuromodulation 13, no. 4 (2010): 265-269. Full Text
  - Veeravagu, A, Patil, CG, Lad, SP, and Boakye, M. "Risk factors for postoperative spinal wound infections after spinal decompression and fusion surgeries." Spine 34, no. 17 (August 2009): 1869-1872. Full Text
  - Lad, SP, Patil, CG, Lad, EM, Hayden, MG, and Boakye, M. "National trends in vertebral augmentation procedures for the treatment of vertebral compression fractures." Surg Neurol 71, no. 5 (May 2009): 580-584. Full Text Link to Item
  - Lad, SP, Patil, CG, Berta, S, Santarelli, JG, Ho, C, and Boakye, M. "National trends in spinal fusion for cervical spondylotic myelopathy." Surgical Neurology 71, no. 1 (January 1, 2009): 66-69. (Academic Article) Full Text Link to Item
  - Lad, SP, Patil, CG, Berta, S, Santarelli, JG, Ho, C, and Boakye, M. "National trends in spinal fusion for cervical spondylotic myelopathy." Surg Neurol 71, no. 1 (January 2009): 66-69. Full Text Link to Item
  - Lad, SP, Santarelli, JG, Patil, CG, Steinberg, GK, and Boakye, M. "National trends in spinal arteriovenous malformations." Neurosurg Focus 26, no. 1 (January 2009): 1-5. Full Text Link to Item
  - Patil, CG, Santarelli, J, Lad, SP, Ho, C, Tian, W, and Boakye, M. "Inpatient complications, mortality, and discharge disposition after surgical correction of idiopathic scoliosis: a national perspective." Spine J 8, no. 6 (November 2008): 904-910. Full Text Link to Item
  - Boakye, M, Patil, CG, Ho, C, and Lad, SP. "Cervical corpectomy: complications and outcomes." Neurosurgery 63, no. 4 Suppl 2 (October 2008): 295-301. Full Text
  - Patil, CG, Lad, EM, Lad, SP, Ho, C, and Boakye, M. "Visual loss after spine surgery: a population-based study." Spine 33, no. 13 (June 2008): 1491-1496. Full Text
  - Li, G, Patil, CG, Lad, SP, Ho, C, Tian, W, and Boakye, M. "Effects of age and comorbidities on complication rates and adverse outcomes after lumbar laminectomy in elderly patients." Spine 33, no. 11 (May 2008): 1250-1255. Full Text
  - Patil, CG, Patil, TS, Lad, SP, and Boakye, M. "Complications and outcomes after spinal cord tumor resection in the United States from 1993 to 2002." Spinal Cord 46, no. 5 (May 2008): 375-379. Full Text
  - Lad, SP, Yang, G, Scott, DA, Chao, T-H, Correia, JDS, de la Torre, JC, and Li, E. "Identification of MAVS splicing variants that interfere with RIGI/MAVS pathway signaling." Mol Immunol 45, no. 8 (April 2008): 2277-2287. Full Text Link to Item
  - Boakye, M, Patil, CG, Santarelli, J, Ho, C, Tian, W, and Lad, SP. "Laminectomy and fusion after spinal cord injury: national inpatient complications and outcomes." J Neurotrauma 25, no. 3 (March 2008): 173-183. Full Text Link to Item
  - Boakye, M, Patil, CG, Santarelli, J, Ho, C, Tian, W, and Lad, SP. "Cervical spondylotic myelopathy: Complications and outcomes after spinal fusion." NEUROSURGERY 62, no. 2 (February 2008): 455-461. Full Text Link to Item
  - Boakye, M, Patil, CG, Santarelli, J, Ho, C, Tian, W, and Lad, SP. "Cervical spondylotic myelopathy: complications and outcomes after spinal fusion." Neurosurgery 62, no. 2 (February 2008): 455-461. Full Text Link to Item
  - Patil, CG, Prevedello, DM, Lad, SP, Vance, ML, Thorner, MO, Katznelson, L, and Laws, ER. "Late recurrences of Cushing's disease after initial successful transsphenoidal surgery." J Clin Endocrinol Metab 93, no. 2 (February 2008): 358-362. Full Text Link to Item
  - Lad, SP, Li, G, Lin, S-C, and Henderson, JM. "Intracranial hypotension from intrathecal baclofen pump insertion. A case report and review of the literature." Stereotactic and Functional Neurosurgery 86, no. 2 (January 2008): 75-79. (Review) Full Text
  - Lad, SP, Patil, CG, Lad, EM, and Boakye, M. "Trends in pathological vertebral fractures in the United States: 1993 to 2004." Journal of Neurosurgery. Spine 7, no. 3 (September 2007): 305-310. Full Text
  - Patil, CG, Lad, SP, Santarelli, J, and Boakye, M. "National inpatient complications and outcomes after surgery for spinal metastasis from 1993-2002." Cancer 110, no. 3 (August 2007): 625-630. Full Text
  - Lad, SP, Lipani, JD, Gibbs, IC, Chang, SD, Adler, JR, and Henderson, JM. "Cyberknife targeting the pterygopalatine ganglion for the treatment of chronic cluster headaches." Neurosurgery 60, no. 3 (March 2007): E580-E581. Full Text Link to Item
  - Roberts, BK, Ouyang, DL, Lad, SP, Chang, SD, Harsh, GR, Adler, JR, Soltys, SG, Gibbs, IC, Remedios, L, and Katznelson, L. "Efficacy and safety of CyberKnife radiosurgery for acromegaly." Pituitary 10, no. 1 (March 2007): 17-null. Full Text
  - Chang, A, Lad, EM, and Lad, SP. "Hippocrates' influence on the origins of neurosurgery." Neurosurgical Focus 23, no. 1 (January 2007): E9-null. (Review) Full Text
  - Lad, SP, Patil, CG, Ho, C, Edwards, MSB, and Boakye, M. "Tethered cord syndrome: nationwide inpatient complications and outcomes." Neurosurgical Focus 23, no. 2 (January 2007): E3-null. Full Text
  - Lad, SP, Patil, CG, Ho, C, Edwards, MSB, and Boakye, M. "Tethered cord syndrome: nationwide inpatient complications and outcomes." Neurosurgical focus 23, no. 2 (2007): 1-5.
  - Lad, SP, Patil, CG, Laws, ER, and Katznelson, L. "The role of inferior petrosal sinus sampling in the diagnostic localization of Cushing's disease." Neurosurg Focus 23, no. 3 (2007): E2-. (Review) Full Text Link to Item
  - Li, G, Patil, C, Adler, JR, Lad, SP, Soltys, SG, Gibbs, IC, Tupper, L, and Boakye, M. "CyberKnife rhizotomy for facetogenic back pain: a pilot study." Neurosurgical Focus 23, no. 6 (January 2007): E2-null. Full Text
  - Li, G, Patil, C, Adler, JR, Lad, SP, Soltys, SG, Gibbs, IC, Tupper, L, and Boakye, M. "CyberKnife rhizotomy for facetogenic back pain: a pilot study." Neurosurgical focus 23, no. 6 (2007): E2-. Full Text
  - Patil, CG, Lad, SP, Harsh, GR, Laws, ER, and Boakye, M. "National trends, complications, and outcomes following transsphenoidal surgery for Cushing's disease from 1993 to 2002." Neurosurg Focus 23, no. 3 (2007): E7-. Full Text Link to Item
  - Patil, CG, Lad, SP, Katznelson, L, and Laws, ER. "Brain atrophy and cognitive deficits in Cushing's disease." Neurosurgical Focus 23, no. 3 (January 2007): E11-null. (Review) Full Text
  - Roberts, BK, Ouyang, DL, Lad, SP, Chang, SD, Harsh, GR, Adler, JR, Soltys, SG, Gibbs, IC, Remedios, L, and Katznelson, L. "Efficacy and safety of CyberKnife radiosurgery for acromegaly." Pituitary 10, no. 1 (2007): 19-25. Full Text Link to Item
  - Henderson, JM, and Lad, SP. "Motor cortex stimulation and neuropathic facial pain. (Published online)" Neurosurg Focus 21, no. 6 (December 15, 2006): E6-. (Review) Link to Item
  - Lad, SP, Guzman, R, Kelly, ME, Li, G, Lim, M, Lovbald, K, and Steinberg, GK. "Cerebral perfusion imaging in vasospasm. (Published online)" Neurosurg Focus 21, no. 3 (September 15, 2006): E7-. (Review) Link to Item
  - Li, G, Jayaraman, MV, Lad, SP, Adler, J, Do, H, and Steinberg, GK. "Carotid and vertebral rete mirabile in man presenting with intraparenchymal hemorrhage: a case report." J Stroke Cerebrovasc Dis 15, no. 5 (September 2006): 228-231. Full Text Link to Item
  - Counts, SE, Nadeem, M, Lad, SP, Wuu, J, and Mufson, EJ. "Differential expression of synaptic proteins in the frontal and temporal cortex of elderly subjects with mild cognitive impairment." Journal of Neuropathology and Experimental Neurology 65, no. 6 (June 2006): 592-601. Full Text
  - Lad, SP, Jobe, KW, Polley, J, and Byrne, RW. "Munchausen's syndrome in neurosurgery: report of two cases and review of the literature." Neurosurgery 55, no. 6 (December 2004): 1436-. Link to Item
  - Lad, SP, Jobe, KW, Polley, J, Byrne, RW, Hadley, MN, Oró, J, and Grossman, RG. "Munchausen's syndrome in neurosurgery: Report of two cases." Neurosurgery 55, no. 6 (2004): 1436--. Full Text
  - Lad, SP, Neet, KE, and Mufson, EJ. "Nerve growth factor: structure, function and therapeutic implications for Alzheimer's disease." Curr Drug Targets CNS Neurol Disord 2, no. 5 (October 2003): 315-334. (Review) Link to Item
  - Lad, SP, and Neet, KE. "Activation of the mitogen-activated protein kinase pathway through p75NTR: a common mechanism for the neurotrophin family." J Neurosci Res 73, no. 5 (September 1, 2003): 614-626. Full Text Link to Item
  - Lad, SP, Peterson, DA, Bradshaw, RA, and Neet, KE. "Individual and combined effects of TrkA and p75NTR nerve growth factor receptors. A role for the high affinity receptor site." J Biol Chem 278, no. 27 (July 4, 2003): 24808-24817. Full Text Link to Item
  - Hughes, AL, Messineo-Jones, D, Lad, SP, and Neet, KE. "Distinction between differentiation, cell cycle, and apoptosis signals in PC12 cells by the nerve growth factor mutant delta9/13, which is selective for the p75 neurotrophin receptor." Journal of Neuroscience Research 63, no. 1 (January 2001): 10-19. Full Text
  - Mattson, MP, and Klapper, W. "Emerging roles for telomerase in neuronal development and apoptosis." Journal of Neuroscience Research 63, no. 1 (January 2001): 1-9. (Review) Full Text
Teaching & Mentoring
Recent Courses

Some information on this profile has been compiled automatically from Duke databases and external sources. (Our About page explains how this works.) If you see a problem with the information, please write to Scholars@Duke and let us know. We will reply promptly.

Education, Training, & Certifications

Duke Appointment History

In the News

Selected Grants

Selected Publications

Book Sections

Conference Papers

Journal Articles

Recent Courses