Ephraim Katz

Dr. Ephraim Katz

orcid

Research Focus & Metrics

Academic Career Length

2Years (2025-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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17 March 2026 in Journal of Clinical Medicine
Verified
Journal Article
Open access
PDF file
MGMichael Goldenshluger
Michael Goldenshluger
OGOfir Gruper
Ofir Gruper
YAYasmin Anderson
Yasmin Anderson
TCTal Caller
Tal Caller
EKEphraim Katz
Ephraim Katz
LSLior Segev
Lior Segev
Background/Objectives: Postoperative paralytic ileus (POI) is a common complication after rectal resections. Although it is often argued that laparoscopic or robotic surgery reduces ileus compared to open surgery, research indicates that the incidence rates remain considerably high after minimally invasive surgery (MIS), and it is unclear whether laparoscopy or robotic surgery confers lower ileus rates. Furthermore, the literature lacks consistency in defining ileus and does not adequately address the severity levels of this complication. This study aims to compare the incidence and severity of ileus after open, laparoscopic, and robotic oncologic rectal resections, using definitions established in the current literature. Methods: This is a retrospective cohort study including patients who underwent rectal resection in a single tertiary academic-affiliated hospital between the years 2014 and 2019. The study compared patients who underwent laparoscopic and robotic surgeries to those who underwent open surgery. Results: The study involved 337 patients who underwent oncologic rectal resection. Among them, 188 underwent laparoscopic, 59 robotic and 90 underwent open surgery. The overall incidence of postoperative paralytic ileus (POI) was 19.6%, with a significant difference observed between surgical approaches: 15.4% in the MIS group compared to 31.1% in the open surgery group (p < 0.001). Additionally, a lower ileus incidence was noted between the robotic (8.5%) and laparoscopic (17.6%) subgroups, but it did not reach statistical significance (p = 0.092). The severity of ileus did not differ significantly between laparoscopic, robotic and open surgery. Ileus risk factors that were found included advanced age, male gender, high ASA score, preoperative anemia, intraoperative bowel injury, and postoperative opioid use. Conclusions: MIS for rectal cancer is linked to a significantly lower rate of POI compared to open surgery. However, when ileus does occur, its severity is comparable across all techniques.

20 November 2025 in Journal of Trauma and Injury
Verified
Journal Article
Open access
BRBarak Raguan
Barak Raguan
FAFahim Awaad
Fahim Awaad
EKEphraim Katz
Ephraim Katz
DLDean Lutrin
Dean Lutrin
YKYoram Klein
Yoram Klein
IKIlan Kent
Ilan Kent
Restoring large bowel continuity after extensive resection due to abdominopelvic trauma may be challenging because of the limited length of the remaining bowel. Achieving a tension-free anastomosis can be particularly difficult when attempting this within the pelvis due to a short rectal stump. Two maneuvers that can aid in these situations are the retroileal pull-through approach and the Deloyers procedure. We describe two cases in which each maneuver was utilized to facilitate colostomy closure following extensive large bowel resection resulting from abdominopelvic trauma. Both maneuvers proved feasible, successfully allowing bowel continuity to be restored with tension-free anastomoses. Protective loop ileostomies were performed in both cases. Postoperative contrast enema studies did not show evidence of anastomotic leaks. After ileostomy closure, both patients regained bowel function with good bowel control. Bowel manipulation maneuvers following abdominal trauma are therefore feasible and facilitate tension-free anastomosis after extensive colonic and rectal resections. Trauma and colorectal surgeons managing abdominal trauma patients requiring ostomy closure should become familiar with these techniques.