Abstract | BACKGROUND: Previous reports suggest that helium pneumoperitoneum used for laparoscopic surgery suppresses postoperative tumor growth. The present study was designed to determine the effects of gases used in laparoscopy on tumor volume, proliferation, and apoptosis in rats with implanted malignoma. METHODS: In 36 rats Morris hepatoma 3294A cells were implanted intrahepatically. Then, after 5 days, they underwent laparoscopy using helium ( n = 7), CO(2) ( n = 7), room air ( n = 7), or xenon ( n = 8). One group received anesthesia only ( n = 7). Rats were killed 10 days after implantation to assess tumor volume, proliferation, and apoptosis. RESULTS:
Helium pneumoperitoneum caused a significant smaller tumor volume compared to other groups (Kruskal-Wallis test: p = 0.001; median tumor volume: control: 44 mm3; helium: 19 mm3). There was no significant difference in tumor cell proliferation ( PCNA) and apoptosis (TUNEL reaction) between the groups. CONCLUSIONS:
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Authors | S Dähn, P Schwalbach, F Wöhleke, A Benner, C Kuntz |
Journal | Surgical endoscopy
(Surg Endosc)
Vol. 17
Issue 10
Pg. 1653-7
(Oct 2003)
ISSN: 1432-2218 [Electronic] Germany |
PMID | 12915966
(Publication Type: Comparative Study, Journal Article)
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Chemical References |
- Carbon Dioxide
- Helium
- Xenon
|
Topics |
- Air
- Animals
- Apoptosis
- Carbon Dioxide
- Cell Division
- Helium
- Immunohistochemistry
- Laparoscopy
(methods)
- Liver Neoplasms, Experimental
(pathology, surgery)
- Male
- Pneumoperitoneum, Artificial
(instrumentation, methods)
- Rats
- Rats, Inbred ACI
- Xenon
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