Scholars@Duke
Edward Gerald Chekan

Edward Gerald Chekan

Adjunct Assistant Professor in the Department of Surgery
Surgery, Minimally Invasive Surgery
edward.chekan@duke.edu
DUMC 2926, Durham, NC 27710
DUMC 2926, Durham, NC 27710

Selected Publications

Enhancing Surgical Robotic Skills Through Performance-Guided Training: A Swimmer's Approach for Defining Key Metrics.

Journal Article JSLS · 2025 BACKGROUND: In swimming, a combination of strength, endurance, and targeted skill training significantly enhances performance, particularly by balancing aerobic and anaerobic conditioning. Similarly, in surgery, improving motor control and stamina during l ... Full text Link to item Cite

The Senhance Surgical Robotic System

Chapter · January 1, 2025 The LUNA Surgical Robotic System, developed by Asensus Surgical, is being designed with the intent to enhance surgical performance. Its advanced ergonomic design and integration of digital and robotic technologies facilitate what is termed “Performance-Gui ... Full text Cite

Thickness of Cadaveric Human Lung Tissue.

Journal Article Surg Technol Int · October 26, 2016 BACKGROUND: Choosing the correct surgical staple height is dependent on knowledge of specific tissue thickness and compressibility. The purpose of this study was to measure the thickness of cadaveric human lung tissue. MATERIALS AND METHODS: Between Decemb ... Link to item Cite

A Narrative of Intraoperative Staple Line Leaks and Bleeds During Bariatric Surgery.

Journal Article Obes Surg · July 2016 The primary objective of this review was to assess the incidence of intraoperative staple line leaks and bleeds during laparoscopic sleeve gastrectomy (LSG) and laparoscopic Roux-en-Y gastric bypass (LRYGB). A literature search of MEDLINE®, EMBASE™, and Bi ... Full text Link to item Cite

Consistency and sealing of advanced bipolar tissue sealers

Journal Article Medical Devices Evidence and Research · April 20, 2015 Objectives: The aim of this study was to evaluate two commonly used advanced bipolar devices (ENSEAL® G2 Tissue Sealers and LigaSure™ Blunt Tip) for compression uniformity, vessel sealing strength, and consistency in bench-top analyses. Methods: Compressio ... Full text Cite

Gastrectomy and D2 Lymphadenectomy for Gastric Cancer: A Meta-Analysis Comparing the Harmonic Scalpel to Conventional Techniques.

Journal Article Int J Surg Oncol · 2015 The ultrasonic Harmonic scalpel has demonstrated clinical and surgical benefits in dissection and coagulation. To evaluate its use in gastrectomy, we conducted a systematic review and meta-analysis of randomized controlled trials comparing the Harmonic sca ... Full text Link to item Cite

Surgical stapling device–tissue interactions: What surgeons need to know to improve patient outcomes

Journal Article Medical Devices Evidence and Research · September 12, 2014 The introduction of both new surgical devices and reengineered existing devices leads to modifications in the way traditional tasks are carried out and allows for the development of new surgical techniques. Each new device has benefits and limitations in r ... Full text Cite

Device-tissue interactions: A collaborative communications system

Journal Article Annals of Surgical Innovation and Research · July 29, 2013 Medical devices, including surgical staplers, energy-based devices, and access enabling devices, are used routinely today in the majority of surgical procedures. Although these technically advanced devices have proved to be of immense benefit to both surge ... Full text Cite

Costs and clinical outcomes of conventional single port and micro-laparoscopic cholecystectomy.

Journal Article JSLS · 2013 BACKGROUND AND OBJECTIVE: This study compares hospital costs and clinical outcomes for conventional laparoscopic, single-port, and mini-laparoscopic cholecystectomy from US hospitals. METHODS: Eligible patients were aged ≥18 years and undergoing laparoscop ... Full text Link to item Cite

Electromagnetic energy sources in surgery.

Journal Article Vet Surg · December 2010 The biophysics, mechanism of actions, applications, benefits and complications of electromagnetic (EM) energy-based surgical instruments, and their current use are reviewed. Understanding the mechanism of action, tissue effects, and appropriate application ... Full text Link to item Cite

Website navigation and surgical education.

Journal Article J Telemed Telecare · 2006 We evaluated the way in which medical students interacted with a surgical education Website. Ten medical students on their paediatric surgery rotation were asked to study online a chapter on intussusception in young children, for a period of 1 h. The compu ... Full text Link to item Cite

Improving surgical pattern recognition through repetitive viewing of video clips

Journal Article IEEE Transactions on Systems Man and Cybernetics Part A Systems and Humans · November 1, 2004 Previous field studies show that surgery residents and medical students have difficulty recognizing appropriate anatomic cues during laparoscopic surgery, causing delays in procedures and errors. Such observations led to the development of an anatomy recog ... Full text Cite

Discussion

Conference American Surgeon · December 1, 2003 Cite

Effects of pneumoperitoneum on hemodynamic and systemic immunologic responses to peritonitis in pigs.

Journal Article J Surg Res · November 2002 BACKGROUND: Experimental evidence supporting the safety of laparoscopic intervention during sepsis is limited. The purpose of this study was to evaluate the effects of pneumoperitoneum on immunologic and hemodynamic responses to peritoneal sepsis. MATERIAL ... Full text Link to item Cite

A systems approach to surgical safety.

Journal Article Surg Endosc · June 2002 Full text Link to item Cite

A canine model of gastroesophageal reflux disease (GERD).

Journal Article Surg Endosc · January 2002 BACKGROUND: Although a variety of antireflux procedures and medications are used to treat gastroesophageal reflux disease (GERD), reliable large-animal models of GERD that can be used to objectively compare the efficacy of these treatments are lacking. MET ... Full text Link to item Cite

Laparoscopy and the internet. A surgeon survey.

Journal Article Surg Endosc · September 2001 BACKGROUND: The Internet has become an important new tool for the delivery and acquisition of medical information. METHODS: A 13-item questionnaire designed to collect information on the attitudes and practices of surgeons regarding the use of the Internet ... Full text Link to item Cite

Intraperitoneal immunity and pneumoperitoneum.

Journal Article Surg Endosc · November 1999 BACKGROUND: Carbon dioxide (CO(2)) pneumoperitoneum has been implicated as a possible factor in depressed intraperitoneal immunity. Using in vitro functional assays, CO(2) has been shown to decrease the function of peritoneal macrophages harvested from ins ... Full text Link to item Cite

Laparoscopy and mesothelioma.

Journal Article J Laparoendosc Adv Surg Tech A · October 1999 Malignant mesothelioma is a well-recognized long-term sequela of chronic asbestos exposure. Asbestos use in the United States began in the 1950s and was widespread until the mid-1970s. Although currently only 2.2 cases per million population per year are d ... Full text Link to item Cite

Conversion factors for laparoscopic splenectomy for immune thrombocytopenic purpura.

Journal Article Surg Endosc · August 1999 BACKGROUND: Since 1994, 27 patients at our institution have undergone laparoscopic splenectomy for immune thrombocytopenic purpura (ITP). Laparoscopic splenectomy was completed in 22 of these patients. We sought to identify factors that precluded successfu ... Full text Link to item Cite

Laparoscopic biliary and enteric bypass.

Journal Article Semin Surg Oncol · June 1999 Very few patients with a periampullary neoplasm present with resectable disease. Consequently, various operative and non-operative techniques have been developed to palliate patients with unresectable periampullary disease. Laparoscopic biliary (cholecysto ... Full text Link to item Cite

Unusual complications following laparoscopic Nissen fundoplication.

Journal Article Surg Laparosc Endosc Percutan Tech · April 1999 Laparoscopic Nissen fundoplication is commonly used to treat medically refractory gastroesophageal reflux disease. The most frequent severe complications following laparoscopic Nissen fundoplication are pneumothorax, gastroesophageal leak, and splenic inju ... Link to item Cite

Diagnostic laparoscopy outside of the operating room.

Journal Article Semin Laparosc Surg · March 1999 Laparoscopy is increasingly being used as a diagnostic technique to characterize intraperitoneal processes. This technique can be highly informative when applied in settings such as the intensive care unit, the emergency room, the trauma bay, and the offic ... Full text Link to item Cite

A canine model of gastroesophageal reflux disease

Conference GASTROENTEROLOGY · 1999 Cite

The laparoscopic management of gastroesophageal reflux disease.

Journal Article Adv Surg · 1999 Laparoscopic fundoplication has replaced open fundoplication as the gold standard for the surgical management of patients with GERD. The improvements in technique that have led to the excellent results on long-term follow-up have broadened the indications ... Link to item Cite

Computers in surgical residencies

Journal Article Current Surgery · November 1, 1998 Computerized data management, or information technology (IT), seems less apparent in surgical residencies as compared with the systems being developed on college campuses. Through the use of a telephone survey of residency program coordinators, we sought t ... Cite

Small bowel intussusception and laparoscopy.

Journal Article Surg Laparosc Endosc · August 1998 Adult intussusception is rare and is usually caused by a tumor serving as a lead point. Surgery is necessary to treat obstruction and rule out malignancy. However, if a benign cause (lipoma, fibroma, or Meckel's diverticulum) is suspected preoperatively, a ... Link to item Cite