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Effects of intra-abdominal pressure on lapar oscopic working space in domestic rabbits (Oryctolagus cuniculus).
- Source :
-
American Journal of Veterinary Research . Jan2020, Vol. 81 Issue 1, p77-83. 7p. - Publication Year :
- 2020
-
Abstract
- OBJECTIVE To assess the effects of 3 intra-abdominal pressures (lAPs) on pneumoperitoneal (laparoscopic working space) volume in domestic rabbits (Oryctolagus cuniculus). ANIMALS 6 female New Zealand White rabbits. PROCEDURES A Latin-square design was used to randomly allocate sequences of 3 lAPs (4, 8, and 12 mm Hg) to each rabbit in a crossover study. Rabbits were anesthetized, subumbilical cannulae were placed, and CT scans were performed to obtain baseline measurements. Each IAP was achieved with CO, insufflation and maintained for > 15 minutes; CT scans were performed with rabbits in dorsal, left lateral oblique, and right lateral oblique recumbency. The abdomen was desufflated for 5 minutes between treatments (the 3 lAPs). Pneumoperitoneal volumes were calculated from CT measurements with 3-D medical imaging software. Mixed linear regression models evaluated effects of IAP, rabbit position, and treatment order on working space volume. RESULTS Mean working space volume at an IAP of 8 mm Hg was significantly greater (a 19% increase) than that at 4 mm Hg, and was signíficantly greater (a 6.9% increase) at 12 mm Hg than that at 8 mm Hg. Treatment order, but not rabbit position, also had a significant effect on working space. Minor adverse effects reported in other species were observed in some rabbits. CONCLUSIONS AND CLINICAL RELEVANCE A nonlinear increase in abdominal working space was observed with increasing IAP. Depending on the type of procedure and visual access requirements. lAPs > 8 mm Hg may not provide a clinically important benefit for laparoscopy in rabbits. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00029645
- Volume :
- 81
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- American Journal of Veterinary Research
- Publication Type :
- Academic Journal
- Accession number :
- 141147382
- Full Text :
- https://doi.org/10.2460/ajvr.81.1.77