Ultrasonically activated shears in extended lymphadenectomy for gastric cancer.

Gastrectomy, followed by extended lymphadenectomy, is the treatment of choice in some stages of advanced gastric cancer. Lymphorrhea, as a result of the many divided lymphatic vessels, increases the morbidity. Ultrasonically activated coagulated shears (UACS) may divide all small vessels followed by immediate sealing of the coapted vessel walls.