Currently, there is limited scientific evidence regarding the effectiveness of fluorescent cholangiography in emergency cholecystectomy for acute cholecystitis. The primary aim of this study was to assess the efficacy of near-infrared fluorescent cholangiography to detect extrahepatic biliary anatomy in different severity degrees of acute cholecystitis.
The study aims to to evaluate the efficacy of near-infrared fluorescent cholangiography for real-time visualization of the extrahepatic biliary tree (cystic duct, common hepatic duct, cystic duct-common hepatic duct junction, common bile duct and any accessory or aberrant ducts) in emergency laparoscopic cholecystectomy before and after hepatocystic triangle dissection and in different degrees of severity of acute cholecystitis according to the American Association of Surgery for Trauma (AAST) classification, specifically distinguishing between non-gangrenous (grade I) and gangrenous or complicated (grades II-V) forms. For intra-operative fluorescent cholangiography, 2.5 mg indocyanine green (ICG) was administered intravenously 45-60 min prior to surgery, according to the recent guidelines from the International Society for Fluorescence Guided Surgery. All the operations were performed by the same team of surgeons. Near-infrared fluorescent cholangiography was performed by using Stryker's fluorescence imaging system (Stryker, Portage, Miami, USA). Near-infrared fluorescent cholangiography was performed at three defined time point during laparoscopic cholecystectomy: (i) following exposure of Calot's triangle, prior to any dissection; (ii) after partial dissection of Calot's triangle; (iii) after complete dissection of Calot's triangle, according to the "Critical View of Safety" method.
Study Type
OBSERVATIONAL
Enrollment
81
For intra-operative fluorescent cholangiography, 2.5 mg indocyanine green (ICG, Pulsion Medical Inc., Irving, Tx) was administered intravenously 45-60 min prior to surgery, according to the recent guidelines from the International Society for Fluorescence Guided Surgery (ISFGS) and the latest consensus conference published in 2021.
Unità Operativa Qualità, Accreditamento, Ricerca organizzativa
Ferrara, Italy
Efficacy of near-infrared fluorescent cholangiography in emergency cholecystectomy
The primary aim was to analyze the correct visualization by fluorescence of extrahepatic bile ducts (cystic duct, common hepatic duct, cystic duct-common hepatic duct junction, common bile duct, and any accessory or aberrant ducts) before and after Calot's dissection in different grades of severity of acute cholecystitis according to the AAST classification, particularly distinguishing non-gangrenous forms (grade I) from gangrenous and complicated forms (grades II-V).
Time frame: From start of surgery to the end of Calot's triangle dissection
Conversion rate in emergency cholecystectomy by fluorescence
Conversion rate (from laparoscopy to open approach)
Time frame: perioperatively
The bail-out procedures rate in emergency cholecystectomy by fluorescence
Bail-out procedures during surgery, such as subtotal cholecystectomy, antegrade cholecystectomy
Time frame: perioperatively
The rate of bile duct injuries in emergency cholecystectomy by fluorescence
Iatrogenic bile duct injuries
Time frame: perioperatively
The duration of surgery in emergency cholecystectomy by fluorescence
Total surgery duration (minutes)
Time frame: perioperatively
Analysis of post-operative complications in emergency cholecystectomy by fluorescence
Postoperative complications according to Clavien-Dindo classification
Time frame: up to 30 days
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The length of stay in emergency cholecystectomy by fluorescence
Length of hospital stay
Time frame: perioperatively