Colangiografía intraoperatoria: curva de aprendizaje en una Residencia de Cirugía General

Background: The use of dynamic intra-operative cholangiography (dIOC) during laparoscopic cholecystectomy (Lap Chole) remains a topic under discussion. Objectives: This study aims to describe and evaluate the learning curve and findings in the dIOC during laparoscopic cholecystectomies performed by Residents of General Surgery, including it as a tool for a safe cholecystectomy, as well as training for the development of skills and abilities. Material and methods: Patients with indication of scheduled or emergency laparoscopic cholecystectomy were included. In the surgeries, traction was performed according to Hunter, critical safety vision and systematic dIOC, by a senior Resident and the dIOC by a less trained resident, tutored by a staff surgeon. Learning curve, operative times, dIOC time relationship with Lap Chole duration time (IOC/LC), repeated cystic dissection, cystic lithiasis and choledocholithiasis were evaluated. Results: 456 patients were operated for one year (2017-2018). It was observed that regardless of who performs the dIOC, they were able to improve their learning curve, objectifying shorter times for Lap Chole, dIOC and the IOC/LC relationship. The learning coefficients were better in complex surgeries in relation to the semester. 5.26 % had choledocholithiasis (n = 24), of these, 66.7% had cystic lithiasis (n = 16) and 25% associated cholecystitis (n = 6). All were resolved trancystically. There were no conversions and dIOC was performed in 100% of cases. Conclusion: The dIOC is an ideal procedure to be practiced systematically during residency. Because it gives the necessary training for the management of the transcystic pathway, allows avoiding an upper bile duct injury and the diagnosis of choledocholithiasis.