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Published on: February 28, 2025
New classification of the anatomic variations of cystic artery during laparoscopic cholecystectomy
You-Ming Ding1, Bin Wang, Wei-Xing Wang
1Department of Hepatobiliary and Laparoscopic Surgery, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei Province, China.
Insights
Laparoscopic surgery revealed frequent cystic artery variations. A new classification system based on 600 cases helps surgeons avoid bleeding and bile duct injuries during cholecystectomy.
Area of Science:
- Surgical anatomy
- Minimally invasive surgery
Background:
- Cystic artery variations are common during laparoscopic cholecystectomy.
- Accurate identification is crucial for surgical safety.
Purpose of the Study:
- To investigate cystic artery anatomic variations using laparoscopy.
- To propose a new classification system for laparoscopic surgeons.
Main Methods:
- Retrospective analysis of 600 laparoscopic cholecystectomies.
- Detailed recording of cystic artery anatomy and Calot's triangle structures.
Main Results:
- Identified frequent anatomic variations of the cystic artery.
- Proposed a new classification: Calot's triangle type (85.5%), outside Calot's triangle (13%), and compound type (1.5%).
Conclusions:
- The new classification aids in reducing cystic artery hemorrhage.
- It helps prevent extrahepatic bile duct injury during surgery.
Aim:
To investigate the anatomic variations in the cystic artery by laparoscopy, and to provide a new classification system for the guidance of laparoscopic surgeons.
Methods:
Six hundred patients treated with laparoscopic cholecystectomy from June 2005 to May 2006 were studied retrospectively. The laparoscope of 30(o)(Stryker, American) was applied. Anatomic structures of cystic artery and conditions of Calot's triangle under laparoscope were recorded respectively.
Results:
Laparoscopy has revealed there are many anatomic variations of the cystic artery that occur frequently. Based on our experience with 600 laparoscopic cholecystectomies, we present a new classification of anatomic variations of the cystic artery, which can be divided into three groups: (1) Calot's triangle type, found in 513 patients (85.5%); (2) outside Calot's triangle, found in 78 patients (13%); (3) compound type, observed in 9 patients (1.5%).
Conclusion:
Our classification of the anatomic variations of the cystic artery will be useful for decreasing uncontrollable cystic artery hemorrhage, and avoiding extrahepatic bile duct injury.