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Related Experiment Video

Updated: Jun 14, 2026

Murine Ileocolic Bowel Resection with Primary Anastomosis
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Endogenous morphine levels after laparoscopic versus open colectomy.

K M Madbouly1, A J Senagore, C P Delaney

  • 1Department of Surgery, University of Alexandria, Alexandria, Egypt. Khaled.Madbouly@alexmed.edu.eg

The British Journal of Surgery
|March 24, 2010
PubMed
Summary
This summary is machine-generated.

Open colectomy surgery leads to higher levels of endogenous morphine compared to laparoscopic surgery. This difference in endogenous morphine (a pain-related compound) may influence recovery times after abdominal surgery.

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Area of Science:

  • Surgical oncology
  • Pain management
  • Gastroenterology

Background:

  • Endogenous morphine is implicated in the acute-phase response to surgical trauma.
  • This response can impact hospital stay duration and gastrointestinal motility.
  • Surgical procedures like colectomy trigger stress responses involving hormones and cytokines.

Purpose of the Study:

  • To investigate the body's production of endogenous morphine following different colectomy techniques.
  • To compare stress hormone and cytokine responses between laparoscopic and open colectomy.
  • To correlate these biochemical markers with patient recovery outcomes.

Main Methods:

  • A comparative study involving 20 patients undergoing laparoscopic colectomy and 10 undergoing open colectomy.
  • Measurement of plasma endogenous morphine levels pre-operatively and at 3, 24, and 48 hours post-operatively.
  • Collection of data on operative blood loss, operating time, time to flatus, and hospital stay.

Main Results:

  • Open colectomy patients experienced longer operating times, delayed solid food tolerance, and extended hospital stays.
  • Endogenous morphine levels significantly increased immediately after open colectomy but not after laparoscopic colectomy.
  • Elevated endogenous morphine levels persisted for 24 hours post-open colectomy compared to laparoscopic procedures.

Conclusions:

  • Open colectomy elicits a more pronounced endogenous morphine synthesis compared to laparoscopic colectomy.
  • The heightened endogenous morphine response may contribute to the longer recovery observed after open procedures.
  • Further research is needed to understand the clinical implications of these findings on patient recovery.