Abstract
Background: Whereas there are case reports of laparoscopy in patients with ventriculoperitoneal shunts, there are no studies assessing the potential failure of shunt valves with the increased intra-abdominal pressure of laparoscopy. This study aims to assess this factor.
Methods: An in vitro model was used to assess the potential for retrograde failure of ventriculoperitoneal shunt valves in a commonly used shunt. Nine shunts were subjected to graded increases in back pressure and observed for retrograde valve leak.
Results: None of the shunts tested showed any signs of leak associated with the increased back pressure. However, disruption of shunt seals was noted in seven of the nine shunts, occurring at the minimal pressure of 80 mmHg.
Conclusions: There appears to be minimal risk of retrograde failure of the valve system in the ventriculoperitoneal shunt tested. However, tests on different types of ventriculoperitoneal shunts would be needed to confirm these results if laparoscopy is to be considered safe in patients with ventriculoperitoneal shunts in situ.
Similar content being viewed by others
Author information
Authors and Affiliations
Additional information
Received: 2 February 1998/Accepted: 6 July 1998
Rights and permissions
About this article
Cite this article
Neale, M., Falk, G. In vitro assessment of back pressure on ventriculoperitoneal shunt valves . Surg Endosc 13, 512–515 (1999). https://doi.org/10.1007/s004649901024
Published:
Issue Date:
DOI: https://doi.org/10.1007/s004649901024