Alison A Smith1, Dominique J Monlezun2, John Martinie3, David Iannitti3, Ioannis Konstantinidis4, Michael Darden5, Geoffrey Parker6, Yuman Fong7, Joseph F Buell2. 1. Department of Surgery, Tulane University School of Medicine, 1430 Tulane Ave, SL-22, New Orleans, LA, 70112, USA. alison.annette.smith@gmail.com. 2. Department of Surgery, Tulane University School of Medicine, 1430 Tulane Ave, SL-22, New Orleans, LA, 70112, USA. 3. Division of HPB Surgery, Carolinas Medical Center, Charlotte, NC, USA. 4. Texas Tech, El Paso, TX, USA. 5. Carey Business School, Johns Hopkins University, Baltimore, MD, USA. 6. Thayer School of Engineering, Dartmouth College, Hanover, USA. 7. City of Hope National Medical Center, Los Angeles, CA, USA.
Abstract
INTRODUCTION: The reported rate of postoperative bile leak is variable between 3 and 33%. Recent data would suggest a minimally invasive approach to liver surgery has decreased this incidence. METHODS: This multi-institutional case-control study utilized databases from three high-volume surgeons. All consecutive open and minimally invasive liver resection cases were analyzed in a propensity score-adjusted multivariable regression. A p value < 0.05 was considered significant. RESULTS: In 1388 consecutive liver resections, the average age was 56.9 ± 14.0 years, 730 (52.59%) were male gender, and 599 (43.16%) underwent minimally invasive liver resection. Thirty-nine (2.81%) in the series were identified with post-resection bile duct leaks. Leaks were associated with major resections and increased blood loss (p < 0.05). Propensity score-adjusted multivariable regression identified minimally invasive liver resection significantly and independently reduced the odds of bile duct leak (OR 0.48, p = 0.046) even controlling for BMI, ASA, cirrhosis, major resection, and resection year. CONCLUSIONS: Our data suggest the incidence of bile leaks in a large-volume center series is far less than previously reported and that a minimally invasive approach to liver resection reduces the incidence of postoperative bile leak.
INTRODUCTION: The reported rate of postoperative bile leak is variable between 3 and 33%. Recent data would suggest a minimally invasive approach to liver surgery has decreased this incidence. METHODS: This multi-institutional case-control study utilized databases from three high-volume surgeons. All consecutive open and minimally invasive liver resection cases were analyzed in a propensity score-adjusted multivariable regression. A p value < 0.05 was considered significant. RESULTS: In 1388 consecutive liver resections, the average age was 56.9 ± 14.0 years, 730 (52.59%) were male gender, and 599 (43.16%) underwent minimally invasive liver resection. Thirty-nine (2.81%) in the series were identified with post-resection bile duct leaks. Leaks were associated with major resections and increased blood loss (p < 0.05). Propensity score-adjusted multivariable regression identified minimally invasive liver resection significantly and independently reduced the odds of bile duct leak (OR 0.48, p = 0.046) even controlling for BMI, ASA, cirrhosis, major resection, and resection year. CONCLUSIONS: Our data suggest the incidence of bile leaks in a large-volume center series is far less than previously reported and that a minimally invasive approach to liver resection reduces the incidence of postoperative bile leak.
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