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Related Experiment Videos

Lactate and acid base changes during laparoscopic cholecystectomy.

Osama A Ibraheim1, Abdulhamid H Samarkandi, Hassan Alshehry

  • 1Department of Anesthesia, King Kahlid University Hospital, King Saud University, Riyadh, Saudia Arabia. osamaibraheim@yahoo.com

Middle East Journal of Anaesthesiology
|June 6, 2006
PubMed
Summary

High-pressure pneumoperitoneum during laparoscopic surgery increases lactate levels and postoperative pain compared to low-pressure methods. This study highlights the adverse metabolic and pain effects of elevated intra-abdominal pressure.

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Area of Science:

  • Laparoscopic surgery
  • Abdominal pressure
  • Metabolic responses

Background:

  • Concerns exist regarding the effects of increased intra-abdominal pressure during laparoscopic procedures.
  • Previous reports indicate hemodynamic and metabolic impairment linked to CO2 pneumoperitoneum and ischemia.

Purpose of the Study:

  • To evaluate metabolic and acid-base responses to high versus low pneumoperitoneum pressure.
  • To compare patient outcomes in laparoscopic cholecystectomy under different pressure conditions.

Main Methods:

  • A prospective randomized trial involving 20 patients undergoing laparoscopic cholecystectomy.
  • Patients were divided into high-pressure (12-14 mmHg) and low-pressure (6-8 mmHg) pneumoperitoneum groups.
  • Arterial blood gases, lactate levels, and postoperative pain (VAS) were measured at various time points.

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Main Results:

  • The high-pressure group showed significantly lower bicarbonate levels and elevated lactate levels intraoperatively and postoperatively.
  • Postoperative pain scores (VAS) were significantly higher in the high-pressure group.
  • Increased incidence of shoulder tip pain was observed in the high-pressure group.

Conclusions:

  • High-pressure pneumoperitoneum leads to significant increases in arterial lactate levels.
  • Elevated intra-abdominal pressure is associated with increased postoperative pain, including shoulder tip pain.