Abstract
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.
| Original language | English |
|---|---|
| Pages (from-to) | 231-234 |
| Number of pages | 4 |
| Journal | Journal of laparoendoscopic & advanced surgical techniques. Part A |
| Volume | 20 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - Jan 1 2010 |
| Externally published | Yes |
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All Science Journal Classification (ASJC) codes
- Surgery
Cite this
An examination of safety on laparoscopic surgery in patients with ventriculoperitoneal shunt by a CO2 reflux experiment. / Matsumoto, Toshifumi; Endo, Yuichi; Uchida, Hiroki; Kusumoto, Tetsuya; Muto, Yoichi; Kitano, Seigo.
In: Journal of laparoendoscopic & advanced surgical techniques. Part A, Vol. 20, No. 3, 01.01.2010, p. 231-234.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - An examination of safety on laparoscopic surgery in patients with ventriculoperitoneal shunt by a CO2 reflux experiment.
AU - Matsumoto, Toshifumi
AU - Endo, Yuichi
AU - Uchida, Hiroki
AU - Kusumoto, Tetsuya
AU - Muto, Yoichi
AU - Kitano, Seigo
PY - 2010/1/1
Y1 - 2010/1/1
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=77955868880&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77955868880&partnerID=8YFLogxK
U2 - 10.1089/lap.2010.0038
DO - 10.1089/lap.2010.0038
M3 - Article
C2 - 20374011
AN - SCOPUS:77955868880
VL - 20
SP - 231
EP - 234
JO - Journal of Laparoendoscopic and Advanced Surgical Techniques - Part A
JF - Journal of Laparoendoscopic and Advanced Surgical Techniques - Part A
SN - 1092-6429
IS - 3
ER -