Abstract
Laparoscopic deroofing is the standard therapy for simple nonparasitic liver cysts. The operation is performed with or without a greater omentum flap sutured into the former cyst cavity. The aim of this study was to determine whether a greater omentum flap has influence on the recurrence rate of nonparasitic liver cysts during the long-term follow-up. From September 1999 to November 2009, 23 patients underwent laparoscopic deroofing for single or multiple nonparasitic symptomatic liver cysts. A greater omentum flap to fill the former cyst cavity was used in 8 patients, whereas in 15 patients operation was carried out without such an omentum flap. The patients were identified retrospectively and subject to a follow-up examination. The 2 groups of patients were compared according to the recurrence of the liver cysts. The median follow-up time was 59±40 months. There was an overall recurrence rate of 4.3% (1 of 23), with 1 cyst recurrence in the greater omentum flap group (1 of 8). The Fisher exact test showed no difference in the recurrence rate between the 2 groups (P=0.35). The overall recurrence rate is low. A greater omentum flap to prevent a local cyst recurrence after laparoscopic deroofing is dispensable and is a potential source of additional complications.
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