Abstract
Background
Laparoscopic cholecystectomy (LC) is the most common elective abdominal surgery in the USA, with over 750,000 performed annually. Fluorescent cholangiography (FC) using indocyanine green dye (ICG) permits identification of extrahepatic biliary structures to facilitate dissection without requiring cystic duct cannulation. Achieving the “critical view of safety” with assistance of ICG cholangiogram may support identification of anatomy, safely reduce conversion to open procedures, and decrease operative time. We assess the utility of FC with respect to anatomic visualization during LC and its effects on patient outcomes.
Methods
A retrospective review of a prospectively maintained database identified patients undergoing laparoscopic cholecystectomy at a single academic center from 2013 to 2019. Exclusion criteria were primary open and single incision cholecystectomy. Patient factors included age, sex, BMI, and Charlson Comorbidity Index. Outcomes included operative time, conversion to open procedure, length of stay (LOS), mortality rate, and 30-day complications. A multivariable logistic regression was performed to determine independent predictors for open conversion.
Results
A total of 1389 patients underwent laparoscopic cholecystectomy. 69.8% were female; mean age 48.6 years (range 15–94), average BMI 29.4 kg/m2 (13.3–55.6). 989 patients (71.2%) underwent LC without fluorescence and 400 (28.8%) underwent FC with ICG. 30-day mortality detected 2 cases in the non-ICG group and zero with ICG. ICG reduced operative time by 26.47 min per case (p < 0.0001). For patients with BMI ≥ 30 kg/m2, operative duration for ICG vs non-ICG groups was 75.57 vs 104.9 min respectively (p < 0.0001). ICG required conversion to open at a rate of 1.5%, while non-ICG converted at a rate of 8.5% (p < 0.0001). Conversion rate remained significant with multivariable analysis (OR 0.212, p = 0.001). A total of 19 cases were aborted (1.35%), 8 in the ICG group (1.96%) and 11 in the non-ICG group (1.10%), these cases were not included in LC totals. Average LOS was 0.69 vs 1.54 days in the ICG compared to non-ICG LCs (p < 0.0001), respectively. Injuries were more common in the non-ICG group, with 9 patients sustaining Strasberg class A injuries in the non-ICG group and 2 in the ICG group. 1 CBDI occurred in the non-ICG group. There was no significant difference in 30-day complication rates between groups.
Conclusion
ICG cholangiography is a non-invasive adjunct to laparoscopic cholecystectomy, leading to improved patient outcomes with respect to operative times, decreased conversion to open procedures, and shorter length of hospitalization. Fluorescence cholangiography improves visualization of biliary anatomy, thereby decreasing rate of CBDI, Strasberg A injuries, and mortality. These findings support ICG as standard of care during laparoscopic cholecystectomy.
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Funding was provided via a grant from Stryker Corporation.
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This study was conducted with a grant from Stryker Corporation. Dr. Santiago Horgan is a consultant for Stryker Corporation, Intuitive Surgical, Fortimedix Surgical, and Medtronic. Dr. Jacobsen receives a teaching honorarium from Gore Medical. Dr. Sandler is a consultant for Intuitive Surgical and Boston Scientific. Drs. Doucet, Broderick, Lee, Zhao, Blitzer, Patel, and Cheverie have no conflicts of interest or financial ties to disclose. Ms. Soltero has no conflicts of interest or financial ties to disclose.
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Ryan C. Broderick and Arielle M. Lee have shared co-first authorship.
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Broderick, R.C., Lee, A.M., Cheverie, J.N. et al. Fluorescent cholangiography significantly improves patient outcomes for laparoscopic cholecystectomy. Surg Endosc 35, 5729–5739 (2021). https://doi.org/10.1007/s00464-020-08045-x
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DOI: https://doi.org/10.1007/s00464-020-08045-x