Predicting the unpredictable.
Predicting the unpredictable.
复制标题
预测不可预测的事情。
DOI:
10.1016/j.hrthm.2009.10.001
复制
发表时间:
2010
期刊:
影响因子:
5.5
通讯作者:
P. Lelorier
中科院分区:
文献类型:
--
作者:
P. Lelorier
In industrialized nations, one fifth of deaths will occur suddenly and unexpectedly. 1, 2 High-profile trials of primary prevention of sudden death have focused mostly on the patients with established cardiomyopathy, particularly those with previous myocardial infarctions. Unfortunately, the high-risk patients currently targeted for implantation of implantable cardioverter-defibrillators (ICDs) represent only about 10% of the victims of sudden death. The goal, therefore, would be to improve the prognosis in the other 90% who are typically not identified by virtue of the fact that they usually have much less antecedent cardiac disease than the high-risk patients. The prognosis for the individual who has an arrest at home, where 80% of sudden deaths occur, 2 is dismal, with only about 5% of such individuals surviving. 3 The home automatic external defibrillator has been far from a panacea, as 40% of episodes are unwitnessed, 2 resulting in precious time being lost as the chance of survival decreases precipitously after about 6 to 8 minutes.In an editorial, Wellens 4 discusses the need for development of a “cardiac arrest device” that would shorten the time between onset of a shockable rhythm and delivery of resuscitation. According to Wellens, such a theoretical device would have to provide the following: 1) continuous monitoring of cardiac activity, 2) selection of the best sensors (electrocardiographic, pulsations, etc.), 3) artifact-free recording, 4) wireless transmission of signal, 5) reliable circulatory arrest detection, 6) miniaturization, 7) low power consumption, 8) an audible alarm, 9) responders with a location of the victim, and 10) ability to time intervals between arrest to start of resuscitation and defibrillation. The engineering of such a device is not far fetched, as it already exists in some form or another, although none of the incarnations have all of the characteristics of the ideal device as proposed by Wellens. The limitations are less those of bioengineering, but rather more socioeconomic. Who