RESUMO
BACKGROUND: Getting the critical view in performing single-incision laparoscopic surgery (SILS) is challenging. In addition, visibility may be impaired by lens fogging and smoke accumulation in the abdomen produced by electrocautery or ultrasonic devices. METHODS: In 12 patients undergoing single-incision laparoscopic cholecystectomy, a peripheral venous catheter (PVC) was introduced in the right upper quadrant under direct vision, and a three-way stopcock was screwed onto the catheter to allow controlled smoke evacuation. Cholangiography was attempted in all cases, four times by introducing a (CH5) feeding tube via PVC. RESULTS: The described technique allowed controlled smoke evacuation via the PVC during SILS while reducing lens fogging and contamination by a constant air flow toward the venous catheter. Cholangiography was possible using a conventional cholangiography forceps (in 7 of 12 cases) or a feeding tube introduced via PVC (in 4 of 12 cases). Once, bleeding from an adjuvant vessel after incision of the cystic duct had to be controlled with clips, and no cholangiogram was achieved (in 1 of 12 cases). No procedure-related complications were observed. There was no conversion to conventional laparoscopic or open surgery. No visible scar was seen at the site of PVC introduction 5 weeks postoperatively. CONCLUSIONS: Visibility can be improved in SILS using a PVC without leaving apparent scars. Cholangiography via PVC is technically feasible and allows complete assessment of the biliary tract.