New two-step wedge liver resection technique: "zoom resection": A case report.

Different surgical procedures have been described for the treatment of colorectal liver metastases. The appropriate surgical approach depends, among many other factors, on the relationship between liver metastases and suprahepatic veins. If possible, the detachment of colorectal liver metastasis from suprahepatic veins is a good alternative liver parenchyma sparing technique. In this study, we describe a new two-step wedge liver resection technique for colorectal liver metastases located between suprahepatic veins. Prior to resection, intraoperative ultrasound is employed in order to plan and guide both steps. Initially, we place stitches and resect a cylindrical piece of normal liver parenchyma above the tumor and suprahepatic veins. Next, we place stitches on the future specimen located between suprahepatic veins, then resect it. The main advantages of this procedure are the good visualization and vascular control that may be achieved during the detachment of the tumor from suprahepatic veins. We call this procedure "zoom resection" because its dynamics are similar to the workings of a photograph camera's telescopic system. We present the case of a 55-year-old patient diagnosed with multiple colorectal liver metastases, one of which was resected through this technique.

Management of nonparasitic hepatic cysts.

BACKGROUND: The optimal management of nonparasitic hepatic cysts (NPHC) is a topic of debate. The purpose of this study was to evaluate our 17-year experience with NPHC. STUDY DESIGN: From January 1990 to August 2007, 131 consecutive patients with NPHC were evaluated and treated at our institution. Seventy-eight patients (60%) had simple hepatic cysts (SHC). The remaining 53 (40%) had polycystic liver disease (PLD). Morbidity, mortality, and recurrence rates for each of the two groups were evaluated. RESULTS: Thirty-seven patients underwent open deroofing (SHC, 24; PLD,13), 66 had laparoscopic deroofing (SHC, 46; PLD, 20), 19 had percutaneous drainage (SHC, 4; PLD, 15), 3 had major hepatic resections (PLD, 3), 4 had cystojejunostomy (SHC, 4), and 2 had combined hepatorenal transplantation (PLD, 2). Corresponding morbidity, mortality, and recurrence rates were, respectively: conventional deroofing: SHC, 29%, 0%, 8%; PLD, 8%, 0%, 0%; laparoscopic deroofing: SHC, 2%, 0%, 2%; PLD, 25%, 0%, 5%; percutaneous drainage: SHC, 0%, 0%, 75%; PLD, 0%, 0%, 20%; cystojejunostomy: SHC, 75%, 0%, 25%; major hepatic resections: PLD, 66%, 0%, 0%; and hepatorenal transplantation: PLD, 50%, 50%, 0%. CONCLUSIONS: Laparoscopic deroofing provided complete relief of symptoms for both SHC and PLD. Percutaneous drainage was our procedure of choice for infected liver cysts and potentially for patients who cannot tolerate general anesthesia. Liver and liver-kidney transplantations were reserved for patients with end-stage PLD alone and in association with end-stage renal disease, respectively.