Funding provided by Washington State University College of Veterinary Medicine Intramural Grants Program for VCS Graduate Student/House Officer Projects awarded January 2009.
Original Article – Research
Comparison of Thoracic and Abdominal Cavity Volumes During Abdominal CO2 Insufflation and Abdominal Wall Lift
Article first published online: 15 NOV 2012
© Copyright 2012 by The American College of Veterinary Surgeons
Volume 42, Issue 5, pages 607–612, June 2013
How to Cite
Watkins, C., Fransson, B. A., Ragle, C. A., Mattoon, J. and Gay, J. M. (2013), Comparison of Thoracic and Abdominal Cavity Volumes During Abdominal CO2 Insufflation and Abdominal Wall Lift. Veterinary Surgery, 42: 607–612. doi: 10.1111/j.1532-950X.2012.01057.x
Presented in part at the 2010 ACVS Veterinary Symposium, October, 2010, Seattle, WA.
- Issue published online: 1 JUL 2013
- Article first published online: 15 NOV 2012
- Manuscript Accepted: JUL 2011
- Manuscript Received: FEB 2011
- Washington State University College of Veterinary Medicine Intramural
To compare thoracic and abdominal cavity volumes during abdominal CO2 insufflation and abdominal wall lift (AWL) conditions.
In vitro cadaveric study.
Mature medium-to-large breed fresh canine cadavers (n = 6).
Each cadaver was imaged with computed tomography (CT) under baseline, abdominal CO2 insufflation, and AWL conditions. Measurements of thoracic and abdominal cavities were performed for each condition using image-analyzing software. Resulting volumes for each cadaver were converted to percent change from baseline to normalize the data. The t-tests were used to compare percent changes of both thoracic and abdominal volumes.
Thoracic volume significantly decreased from baseline during CO2 insufflation (P < .01). No significant difference in thoracic volume occurred with AWL when compared with baseline. Abdominal volume increased by 80% with CO2 insufflation (95% CI: 56.4–107.0%) but only 25% with AWL (95% CI: 12.3–37.8%).
Abdominal CO2 insufflation results in decreased thoracic volume when compared with baseline. AWL preserved thoracic volume similar to baseline. Abdominal volumes achieved with abdominal CO2 insufflation are significantly greater than those attained with AWL.