Michael Eric Lipkin

Journal article J Endourol · October 2012 Featured Work BACKGROUND AND PURPOSE: Flexible working angles and fine optical visualization are major requisite factors in performing laparoendoscopic single-site (LESS) urologic procedures. Multiple mechanical design approaches have been used to develop deflectable la ... Full text Link to item Cite

Organ-specific radiation dose rates and effective dose rates during percutaneous nephrolithotomy.

Journal article J Endourol · May 2012 Featured Work BACKGROUND AND PURPOSE: Radiation exposure during medical procedures continues to be an increasing concern for physicians and patients. We determined organ-specific dose rates and calculated effective dose rates during right and left percutaneous nephrolit ... Full text Link to item Cite

When (and how) to surgically treat asymptomatic renal stones.

Journal article Nat Rev Urol · March 27, 2012 Featured Work Asymptomatic renal stones are identified in 8-10% of screened populations. With the increasing utilization of CT, the number of patients seeking urologic care for incidentally diagnosed renal calculi is likely to increase. Such patients present an importan ... Full text Link to item Cite

Risk reduction strategy for radiation exposure during percutaneous nephrolithotomy.

Journal article Curr Opin Urol · March 2012 Featured Work PURPOSE OF REVIEW: To discuss the risk of radiation exposure to patients with nephrolithiasis. To review the risk factors for increased radiation exposure to patients during percutaneous nephrolithotomy (PNL) from fluoroscopy. To review the techniques to r ... Full text Link to item Cite

Determination of patient radiation dose during ureteroscopic treatment of urolithiasis using a validated model.

Journal article J Urol · March 2012 Featured Work PURPOSE: We measured organ specific radiation dose rates and determined effective dose rates during simulated ureteroscopy using a validated model. To calculate the effective dose, patients were exposed to ureteroscopic management of stones at our institut ... Full text Link to item Cite

Optimization of treatment strategy used during shockwave lithotripsy to maximize stone fragmentation efficiency.

Journal article J Endourol · September 2011 Featured Work BACKGROUND AND PURPOSE: Previous studies have demonstrated that treatment strategy plays a critical role in ensuring maximum stone fragmentation during shockwave lithotripsy (SWL). We aimed to develop an optimal treatment strategy in SWL to produce maximum ... Full text Open Access Link to item Cite

Pathologic evaluation of hemostatic agents in percutaneous nephrolithotomy tracts in a porcine model.

Journal article J Endourol · August 2011 Featured Work BACKGROUND AND PURPOSE: Hemostatic agents have been suggested as an adjunct for tubeless percutaneous nephrolithotomy (PCNL). We pathologically evaluated the percutaneous tracts injected with the fibrin sealant (FS) Evicel and hemostatic gelatin matrix (HG ... Full text Link to item Cite

Reduced radiation exposure with the use of an air retrograde pyelogram during fluoroscopic access for percutaneous nephrolithotomy.

Journal article J Endourol · April 2011 Featured Work INTRODUCTION: Fluoroscopy with retrograde pyelogram is commonly used to obtain access for percutaneous nephrolithotomy (PNL). Our practice uses room air for retrograde identification of calyceal anatomy. Herein we explore whether an air pyelogram was assoc ... Full text Link to item Cite

Third prize: the role of endoscopic nephron-sparing surgery in the management of upper tract urothelial carcinoma.

Journal article J Endourol · March 2011 Featured Work INTRODUCTION: Upper tract urothelial carcinoma (UT-UC) is an uncommon disease with pronounced difference in 5-year survival for noninvasive (96%) versus invasive (17%) disease. High survival rate of early disease questioned the accepted norm of using radic ... Full text Link to item Cite

Low dose computerized tomography for detection of urolithiasis--its effectiveness in the setting of the urology clinic.

Journal article J Urol · March 2011 Featured Work PURPOSE: Low dose noncontrast computerized tomography is becoming a common imaging tool to diagnose urolithiasis. We investigated its usefulness as a diagnostic tool in the outpatient setting. MATERIALS AND METHODS: A total of 62 patients with suspected ur ... Full text Link to item Cite

The digital flexible ureteroscope: in vitro assessment of optical characteristics.

Journal article J Endourol · March 2011 Featured Work INTRODUCTION: Recent advances in endoscope design have placed the charged coupled device chip on the tip of the endoscope. The image is instantly digitalized and converted into an electrical signal for transmission. Digital technology was first introduced ... Full text Link to item Cite

Demystifying the medical management of nephrolithiasis.

Journal article Rev Urol · 2011 Featured Work Nephrolithiasis is a common problem associated with significant costs to the health care system. Its prevalence continues to increase, particularly in women, which is attributed to changes in diet and lifestyle. The costs associated with the evaluation and ... Link to item Cite

In vivo determination of urinary stone composition using dual energy computerized tomography with advanced post-acquisition processing.

Journal article J Urol · December 2010 Featured Work PURPOSE: We assessed whether dual energy computerized tomography with advanced post-image processing can accurately differentiate urinary calculi composition in vivo. MATERIALS AND METHODS: A total of 25 patients scheduled to undergo ureteroscopic/percutan ... Full text Link to item Cite

Tubeless percutaneous nephrolithotomy--the new standard of care?

Journal article J Urol · October 2010 Featured Work PURPOSE: Traditionally the placement of a nephrostomy tube at the conclusion of percutaneous nephrolithotomy is considered the standard of care. However, the need for nephrostomy tube placement has been questioned by numerous authors. We evaluated the lite ... Full text Link to item Cite