Purday J P, Towey R M
Department of Anaesthesia, Guy's Hospital, London.
Br J Anaesth. 1992 Dec;69(6):645-6. doi: 10.1093/bja/69.6.645.
A patient with a permanent pacemaker underwent radical neck dissection. After induction of anaesthesia, a magnetic surgical instrument mat was placed over the patient's chest. This caused the pacemaker to go into a threshold test which included a 2.5-s period of asystole. Surgery had to be abandoned temporarily. We suggest that magnetic instrument mats should not be used with pacemaker patients; not all pacemakers are converted to a fixed magnetic rate by application of a magnet. The anaesthetist should check to see if the patient has a pacemaker with a threshold test and, if possible, this should be rendered inactive.
一名植入永久性起搏器的患者接受了根治性颈部 dissection。麻醉诱导后，一块磁性手术器械垫被放置在患者胸部上方。这导致起搏器进入阈值测试，其中包括一段 2.5 秒的心脏停搏期。手术不得不暂时放弃。我们建议，磁性器械垫不应与植入起搏器的患者一起使用；并非所有起搏器通过施加磁铁都会转换为固定的磁性频率。麻醉师应检查患者的起搏器是否具有阈值测试功能，并且如果可能的话，应使其失效。
