Prognosis

Mortality is highest in lightning strikes (17.6%) compared with high voltage (5.3%) and low voltage electrical injuries (2.8%).[44] Fatal arrhythmias usually occur immediately. The presence of anoxic encephalopathy determines long-term neurological sequelae. The extent of secondary injuries, especially burns, affects prognosis.[2] One study found that 24 months post-injury, patients with electrical burns had significantly lower Physical Health Composite Scale scores compared with patients with burns caused by fire/flame.[45]

A normal ECG seems to predict absence of late arrhythmias.[46]

Long-term follow-up is important. Delayed neurological and psychiatric complications may occur, particularly after high voltage injuries in which conduction has passed through the central nervous system.[19]​​[44]

Because most people injured by electricity are young and healthy, they tend to do well.[2]

Use of this content is subject to our disclaimer