变温水毯在中低温体外循环心内直视术后的应用研究

Applied study on effect of temperature changeable water blanket after direct guided heart operation under middle-low temperature outer circulation

目的评价变温水毯在中低温心脏不停跳及室颤性停搏下心内直视手术后应用的效果。方法将94 例患者分为实验组(49例)及对照组(45例),常规插管建立体外循环,转机后阻断上、下腔静脉,并降低鼻咽温度于 27～28 ℃下行心内直视手术。术后实验组应用变温水毯复温,对照组应用热水袋、加盖被子复温。结果对照组术后3 h体温37．5±0．5℃。实验组术后3 h体温37．6±0．6℃,两组术后体温的恢复、强心药的使用、血压的稳定情况及心律失常的发生情况等在统计学上差异均无显著意义。结论中低温心脏不停跳及室颤性停搏下心内直视手术后应用变温毯进行体温的复温,可减少热量的散失,有利于温度的恢复与恒定,减轻心脏负荷,降低心肌耗氧量,避免低体温室颤性停搏发生。是一种安全、可行、有效的方法。

Objective To evaluate the effect of temperature changeable water blanket after direct guided heart operation under heartbeat and ventricular heartbeat stop. Method 94 patients were divided into experimental group （49 eases ） and control group （45 cases）. All patients has experienced direct guided heart operation under middle-low temperature outer circulation. After operation, temperature changeable water blanket was used for temperature recover in experimental group. Hot water box and quit were used in control group. Result three hours after operation, the body temperature for experimental and control were 37.5±0.5℃ and 37.6±0.6℃ respectively. There was no significant difference in the recovery of body temperature recovery, drug usage, stability of blood pressure and occurrence of abnormal heartbeat. Conclusion Temperature recovery by temperature changeable water blanket after direct guided heart operation under heartbeat and ventricular heartbeat stop will reduce heat lose, promote temperature recovery and stable, reduce heart burden and oxygen consumption. It＇s a safe, practicable and effective method for prevention of ventricular heartbeat stop.