在经过一系列测评后，人们发现在预防某些突发性心脏病致死时，心律转变器比药物治疗更有效。

After a series of trials they have been found to be more effective at preventing some forms of sudden cardiac death than drug treatments are.

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目前心律转变器变得很常用，而只要挂普通门诊就可以进行植入手术，手术仅需三十分钟即可完成。

As a result, they have become popular in recent years, and implantation has become a routine outpatient procedure that can take less than 30 minutes.

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