Omental folding: a novel laparoscopic technique for salvaging peritoneal dialysis catheters

Y Heng Goh
Peritoneal Dialysis International 2008, 28 (6): 626-31

BACKGROUND: Omental wrap is a common cause of catheter obstruction. Current laparoscopic techniques for correcting obstruction include omentopexy and omentectomy. This study evaluates the efficacy of a new laparoscopic technique for revision of obstructed peritoneal dialysis catheters.

METHODS: Between November 2005 and November 2006, the technique was applied in 18 patients (6 female, 12 male; median age 50 years, range 16 - 73 years) on continuous ambulatory peritoneal dialysis with catheter malfunction secondary to omental wrap. Pneumoperitoneum was induced under general anesthesia. Three ports were inserted. The catheter was released from the omentum and repositioned in the pelvis. The omentum was then folded onto itself in a cephalad direction using silk sutures. This shortened the omentum. The risk of catheter migration was minimized with a polypropylene sling passed through the abdominal wall and around the catheter, then knotted subcutaneously. The sling allowed catheter removal without a new laparoscopy. The outcomes were prospectively evaluated.

RESULTS: Median operating time was 90 minutes (range 35 - 160 minutes). Adhesiolysis was performed in 4 patients: 1 patient had port-site leakage of dialysate, which settled with abdominal rest; 1 patient had bleeding during adhesiolysis and laparoscopic hemostasis was successful; 1 patient had recurrent catheter obstruction 2 weeks post-operatively and was converted to hemodialysis; and 1 patient had recurrent malfunction secondary to small bowel wrap after 5.5 months; re-salvage was successful. The success rate of the first salvage procedure was 89%(16/18). The catheters were still functioning after a mean follow-up of 16.5 +/- 6.3 months (range 0.5 - 24 months). The 1-year catheter survival rate was 83.3%.

CONCLUSIONS: Omental folding is a safe and effective technique for salvaging peritoneal dialysis catheters.

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