Objective: To report the frequency and risk factors of complications related to 3 entry techniques for laparoscopy in small animals.
Study Design: Single-institution retrospective case series.
Animals: 159 client-owned dogs and cats.
Methods: Medical records were reviewed for dogs and cats undergoing laparoscopic surgery with carbon dioxide (CO ) insufflation between 2006 and 2018. Data including entry site, entry technique, signalment, body conformation, complications, and operating surgeon/resident were analyzed by univariate regression analysis. Factors with P < .25 were included in multivariate regression analysis.
Results: Complications occurred in 33 of 159 (21%) surgeries and were considered minor (CO leaks, omental insufflation, repeated entry) in 30 of 33 (91%) cases. The Ternamian visual entry, modified Hasson, and Veress needle entry techniques were associated with complications in 7 (9%), 17 (26%), and 9 (60%) surgeries, respectively. Major complications occurred in 3 of 159 (2%) surgeries, in which entry-related hemorrhage prompted conversion to an open technique (2 [13%] entries with Veress needle) and 1 [1%] with the Ternamian visual). Entry location and entry technique remained significant in the final multivariate model. Complications were 11.7 times more likely after a paramedian entry than after a midline entry; the odds ratio of complications were 5 and 28 times higher after modified Hasson and Veress needle entries, respectively, than after Ternamian visual entry.
Conclusion: In this study, a Ternamian visual entry technique and midline entry site appeared associated with fewer complications than 2 other techniques.
Clinical Significance: The findings in this study are preliminary, and superiority of any entry technique must be reevaluated in a prospective randomized controlled study.
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