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Reinforcement Does Not Necessarily Reduce the Rate of Staple Line Leaks After Sleeve Gastrectomy. A Review of the Literature and Clinical Experiences

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Abstract

Background

Laparoscopic sleeve gastrectomy (SG) is an accepted bariatric procedure, with an advantaged by a low complication rate. A feared complication is stapler line leak. Buttressing materials have been suggested as a means of reducing staple line leak rates. We analyzed the leak rates from published series to help in demonstrating a potential cause.

Methods

The study was institutional review board (IRB) approved retrospectively. A Medline search using the key words sleeve gastrectomy and bariatric surgery obtained 54 articles. Attention was restricted to 11 articles written in English that listed numbers of gastrectomy procedures and leaks. Poisson regression assessed the possibility that patients who received buttressing materials had a reduced rate of leaks.

Results

Thirty-five patients were evaluated from Greece (15) and the United States (20); two patients developed staple line leaks that appeared to be related to problems associated with buttressing materials. Eleven prior studies and the present series yielded 1,589 procedures, 15 (0.94%) of which were complicated by leaks. The leak rate for patients who were known to have received reinforcement of some sort was 1.45 (95% confidence interval 0.41–3.43) times that for other patients. To detect a difference between 1% and 0.5% as statistically significant in 80% of cases, with a two tailed test and alpha set at 0.05, would require 9,346 procedures.

Conclusions

There is no reason to believe, at this point, that reduction in leak rates occur because reinforcement is used. Because the leak rate is small, the routine reinforcement of the staple line after sleeve gastrectomy is questionable at best, although a decrease in hemorrhage has been reported.

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Authors and Affiliations

  1. Department of General Surgery, Qilu Hospital of Shandong University, Jinan, 250012, China

    Bo Chen

  2. First Surgical Clinic, Department of Surgery, ‘‘Hygeia’’ Hospital, Athens, Greece

    Andreas Kiriakopoulos, Dimitrios Tsakayannis & Dimitrios Linos

  3. Department of Pathology, Texas Tech University Health Sciences Center, Lubbock, TX, USA

    Mitchell S. Wachtel

  4. Department of Surgery, University of Alabama, VAMC Surgical Service 112, 700 19th Street South, Birmingham, AL, 35233, USA

    Eldo E. Frezza

Authors
  1. Bo Chen
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  2. Andreas Kiriakopoulos
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  4. Mitchell S. Wachtel
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  5. Dimitrios Linos
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  6. Eldo E. Frezza
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Correspondence to Eldo E. Frezza.

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Chen, B., Kiriakopoulos, A., Tsakayannis, D. et al. Reinforcement Does Not Necessarily Reduce the Rate of Staple Line Leaks After Sleeve Gastrectomy. A Review of the Literature and Clinical Experiences. OBES SURG 19, 166–172 (2009). https://doi.org/10.1007/s11695-008-9668-7

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  • DOI: https://doi.org/10.1007/s11695-008-9668-7

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