Document Detail


An examination of safety on laparoscopic surgery in patients with ventriculoperitoneal shunt by a CO2 reflux experiment.
MedLine Citation:
PMID:  20374011     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
When a patient with a ventriculoperitoneal shunt (VPS) undergoes laparoscopic surgery, there is the concern about possible problems with the shunt due to increased intra-abdominal pressure. We conducted a simplified reflux experiment on VPS valves to demonstrate safety. Each of five different VPS valves was connected via tubes to a glass vessel of our own making. Carbon-dioxide gas was consecutively insufflated into the vessel at 3-25 mm Hg pressure to determine whether reflux occurred when the valves and tubes were empty (opened test) and when filled with physiologic saline (closed test). Reflux occurred for two of five valves at an insufflation pressure of 5 mm Hg or more in the opened test, while not for any valves until 25 mm Hg in the closed test. In clinical settings, there would be no possibility of reflux under the pneumoperitoneum in VPS systems draining cerebrospinal fluid. Laparoscopic surgery in patients with VPS would be performed safely if characteristics of VPS valves are taken advantage of.
Authors:
Toshifumi Matsumoto; Yuichi Endo; Hiroki Uchida; Tetsuya Kusumoto; Yoichi Muto; Seigo Kitano
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of laparoendoscopic & advanced surgical techniques. Part A     Volume:  20     ISSN:  1557-9034     ISO Abbreviation:  J Laparoendosc Adv Surg Tech A     Publication Date:  2010 Apr 
Date Detail:
Created Date:  2010-04-08     Completed Date:  2010-08-02     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9706293     Medline TA:  J Laparoendosc Adv Surg Tech A     Country:  United States    
Other Details:
Languages:  eng     Pagination:  231-4     Citation Subset:  IM    
Affiliation:
Department of Surgery, National Hospital Organization Beppu Medical Center, Beppu, Japan. tmatsu@med.oita-u.ac.jp
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MeSH Terms
Descriptor/Qualifier:
Carbon Dioxide / diagnostic use*
Humans
Laparoscopy*
Ventriculoperitoneal Shunt*
Chemical
Reg. No./Substance:
124-38-9/Carbon Dioxide

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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