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Single Port Donor Nephrectomy

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Anesthesia for laparoscopic donor nephrectomy: is nitrous oxide contraindicated?

Rizk El-Galley¹, Lee Hammontree, Donald Urban

¹Division of Urology, Department of Surgery, University of Alabama at Birmingham, Birmingham, Alabama 35294-3411, USA. relgall50@hotmail.com

The Journal of Urology

|May 22, 2007

Summary

Nitrous oxide (N2O) anesthesia causes significant bowel distention in 50% of laparoscopic abdominal surgeries. This distention can be severe, impacting surgical progress and necessitating discontinuation of N2O in 25% of cases.

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Area of Science:

Anesthesiology
Surgical Innovation
Patient Safety

Background:

Laparoscopic surgery offers minimally invasive benefits.
Anesthetic agents can influence intraoperative conditions.
The impact of nitrous oxide on laparoscopic surgical fields requires clarification.

Purpose of the Study:

To evaluate the hypothesis that nitrous oxide (N2O) causes clinically significant bowel distention during laparoscopic abdominal surgery.
To quantify the incidence and severity of bowel distention associated with N2O use.

Main Methods:

Randomized controlled trial comparing N2O/oxygen versus air/oxygen anesthesia in laparoscopic kidney donors.
Surgeons were blinded to N2O administration.
Criteria for discontinuing N2O due to bowel distention were established.

Main Results:

50% of patients receiving N2O experienced mild to moderate bowel distention, versus 6% in the control group (p=0.007).
Severe bowel distention occurred in 25% of N2O recipients, compared to 0% in the control group.
Postoperative nausea and vomiting were more frequent in the N2O group (50% vs 25%).

Conclusions:

Nitrous oxide anesthetic is associated with a high incidence of bowel distention in laparoscopic donor nephrectomy.
The severity of N2O-induced bowel distention can compromise surgical visibility and necessitate its discontinuation.
Alternative anesthetic techniques should be considered for laparoscopic procedures where bowel distention is a concern.