Get access

Comparison of Thoracic and Abdominal Cavity Volumes During Abdominal CO2 Insufflation and Abdominal Wall Lift

Authors

  • Courtney Watkins DVM,

    1. Department of Small Animal Clinical Sciences, College of Veterinary Medicine, Washington State University, Pullman, WA
    Search for more papers by this author
  • Boel A. Fransson DVM PhD Diplomate ACVS,

    Corresponding author
    • Department of Small Animal Clinical Sciences, College of Veterinary Medicine, Washington State University, Pullman, WA
    Search for more papers by this author
  • Claude A. Ragle DVM Diplomate ACVS & ABVP,

    1. Department of Small Animal Clinical Sciences, College of Veterinary Medicine, Washington State University, Pullman, WA
    Search for more papers by this author
  • John Mattoon DVM Diplomate ACVR,

    1. Department of Small Animal Clinical Sciences, College of Veterinary Medicine, Washington State University, Pullman, WA
    Search for more papers by this author
  • John M. Gay DVM PhD Diplomate ACVPM

    1. Department of Small Animal Clinical Sciences, College of Veterinary Medicine, Washington State University, Pullman, WA
    Search for more papers by this author

  • Funding provided by Washington State University College of Veterinary Medicine Intramural Grants Program for VCS Graduate Student/House Officer Projects awarded January 2009.

  • Presented in part at the 2010 ACVS Veterinary Symposium, October, 2010, Seattle, WA.

Corresponding Author

Boel Fransson, DVM, PhD, Diplomate ACVS, Department of Small Animal Clinical Sciences, College of Veterinary Medicine, PO Box 647010, Washington State University, Pullman, WA 99164-6610

E-mail: bfransso@vetmed.wsu.edu

Abstract

Objective

To compare thoracic and abdominal cavity volumes during abdominal CO2 insufflation and abdominal wall lift (AWL) conditions.

Study Design

In vitro cadaveric study.

Animals

Mature medium-to-large breed fresh canine cadavers (n = 6).

Methods

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.

Results

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%).

Conclusions

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.

Get access to the full text of this article

Ancillary