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目的 观察一次性集中和分散多处微波凝固肝组织后果的差异 ,探讨其机理。方法 将犬分成 2组 ,A组每犬选 5肝叶 ,每叶以 1 0 0 W、2 5秒、长 3cm的电极作一微波凝固区。 B组每犬选 1～ 2叶作 5处条件同 A组的凝固区。观察热传导范围及术后情况。结果 凝固过程中距中心 5 cm处温度仍达 43℃～ 43.5℃ ,A组死亡率明显高于 B组 ( P<0 .0 5 ) ,并且 A组动物术后长时间未清醒 ,死亡动物肝充血 ,肝及肠管肿胀并有大量腹水。结论 一次性分散多处微波凝固肝组织可使肝脏产生损伤累加效应。
Objective To observe the differences in the effects of concentrating and dispersing microwave coagulation liver tissues at one time and explore the mechanism. Methods The dogs were divided into 2 groups. The A group received 5 hepatic lobes per canine. Each lobe had 100 W, 25 seconds, and 3 cm long electrodes as a microwave coagulation zone. In group B, 1 to 2 leaves of each dog were used as the coagulation zone in group A for 5 conditions. Observe the range of heat conduction and postoperative conditions. Results During the coagulation process, the temperature was still 43°C～43.5°C from the center 5 cm. The death rate in group A was significantly higher than that in group B (P<0.05), and the animal in group A was not awake for a long time and died from animal liver injury. Congestion, swelling of the liver and intestine and massive ascites. Conclusion Dispersion of multiple microwave coagulation liver tissues at one time can induce liver injury and accumulation.