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冷冻消融是继射频消融后治疗心律失常的一种新技术,该项技术自年初引入国内,已在多家权威医院推广应用,取得30多例的成功治疗经验。冷冻消融的原理是通过N2O的蒸发来吸走大量热量,从而使消融的相应组织温度降低,异常的电生理细胞由此遭到破坏,但心脏的骨架及周围的纤维结缔组织则不受影响。浙江省人民医院心脏中心屈百鸣教授认为,冷冻消融在进行房室结折返型心动过速(AVNRT)、房颤、房扑和其他敏感部位的消融治疗时,
Cryosurgery is a new technique of radiofrequency ablation for the treatment of arrhythmia. Since its introduction at the beginning of this year, cryogenic ablation has been applied in many authoritative hospitals and more than 30 successful treatment experiences have been achieved. The principle of cryoablation is that a large amount of heat is absorbed by the evaporation of N2O so that the temperature of the corresponding ablated tissue is reduced and the abnormal electrophysiological cells are destroyed. However, the skeleton of the heart and surrounding fibrous connective tissue are unaffected. Zhejiang Provincial People’s Hospital Heart Center Professor Qu Baoming believes that cryoablation in atrioventricular nodal reentrant tachycardia (AVNRT), atrial fibrillation, atrial flutter and other sensitive parts of the ablation treatment,