European survey on the application of vascular clamping in liver surgery.

BACKGROUND

This study evaluated the frequency, the indications and techniques of vascular clamping during liver resection and during thermal destruction therapies, as currently used by hepatic surgeons throughout Europe.

METHODS

A web-based questionnaire was distributed among 621 physicians, including all members of the European Hepato-Pancreato-Biliary Association and the European Surgical Association.

RESULTS

The overall response rate was 50%. During liver resection, vascular clamping is never applied by 10%, on indication by 71%, and routinely by 19%. Routine clamping is particularly performed by high-volume and senior surgeons and appears to be associated with longer ischaemia times. Intermittent inflow occlusion is the clamping method of choice for more than 65% of surgeons and total ischaemia times are usually limited to 15-30 min. During thermal ablation, vascular clamping is never used by 57%, on indication by 37%, and routinely by 7%; it is particularly applied for large tumours and for tumours close to large vessels, and ischaemia times are shorter.

CONCLUSIONS

Vascular clamping during liver resection is frequently used; during thermal ablation it is preserved for larger tumours or tumours in the vicinity of large vessels. Complete inflow occlusion is the most frequently used technique, with a distinct preference for intermittent clamping.