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  • Title: Ventriculoperitoneal shunt failure as a complication of laparoscopic surgery.
    Author: Baskin JJ, Vishteh AG, Wesche DE, Rekate HL, Carrion CA.
    Journal: JSLS; 1998; 2(2):177-80. PubMed ID: 9876734.
    Abstract:
    OBJECTIVE: The authors report the first documented case of laparoscopically induced ventriculoperitoneal (VP) shunt failure. SUMMARY BACKGROUND DATA: Laparoscopic surgery has become a preferred method of accessing and treating a variety of intraperitoneal pathology. Surgeons can expect to encounter patients who have previously undergone placement of cerebrospinal fluid (CSF) shunts who present as candidates for laparoscopic procedures. Currently, the presence of a CSF shunt is not considered to be a contraindication to laparoscopy. We report the first documented case of laparoscopically induced VP shunt failure. CLINICAL HISTORY: A patient with shunt-dependent hydrocephalus underwent laparoscopic placement of a feeding jejunostomy. Postoperatively, clinical and radiographic evidence of shunt failure was noted. The patient underwent emergent shunt revision. Intraoperatively, an isolated distal shunt obstruction was encountered. Gentle irrigation cleared the occlusion. We believe that this shunt dysfunction was secondary to impaction of either soft tissue or air within the distal catheter as a consequence of peritoneal insufflation. CONCLUSIONS: It is concluded that laparoscopic surgery may represent a potential danger in patients with pre-existing CSF shunts. The risk of neurological injury faced by this patient population during laparoscopy is derived from peritoneal insufflation and relates to two primary concerns. The first is impaired CSF drainage due to a sustained elevated distal pressure gradient or, as in our case, an acute distal catheter obstruction. The second concern relates to the potential for retrograde insufflation of the CSF spaces through an incompetent shunt valve mechanism. Distal shunt catheter externalization performed in conjunction with a neurosurgeon during the laparoscopic procedure would prevent these complications. Internalization of the distal shunt catheter would then be performed at the completion of the laparoscopic procedure.
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