Lolk A, Martinussen H J, Madsen T, Alstrup P, Szczepanski C
Department of Thoracic and Cardiovascular Surgery, Odense University Hospital, Denmark.
J Cardiovasc Surg (Torino). 1989 Jul-Aug;30(4):682-6.
In 18 patients undergoing coronary artery bypass surgery the relation between right atrial temperature and right atrial electrical reactivation during cardioplegic cardiac arrest was studied. The administration of cardioplegic solution induced immediate ventricular and atrial arrest in all patients. No recurrence of ventricular activity was observed while right atrial activity subsequently recurred in 11 patients. Activity at the surface ECG was recorded only in one patient with right atrial reactivation. No right atrial electrical activity was found below 19 degrees C. The average atrial temperature was 21.5 degrees C while the average apex temperature was 15 degrees C. The study has confirmed previous observations that during cardioplegic cardiac arrest the right atrium is not as well protected as the ventricular tissue against rewarming. Monitoring of the right atrial electrical activity or right atrial temperature is essential to ensure atrial arrest during the entire period of cardioplegic cardiac arrest.
在18例接受冠状动脉搭桥手术的患者中，研究了心脏停搏期间右心房温度与右心房电再激活之间的关系。所有患者在注射心脏停搏液后均立即出现心室和心房停搏。未观察到心室活动复发，而11例患者随后出现右心房活动复发。仅在1例右心房再激活的患者中记录到体表心电图活动。在19摄氏度以下未发现右心房电活动。右心房平均温度为21.5摄氏度，而心尖平均温度为15摄氏度。该研究证实了先前的观察结果，即在心脏停搏期间，右心房不如心室组织那样能很好地抵御复温。监测右心房电活动或右心房温度对于确保在整个心脏停搏期间心房停搏至关重要。
