A sharp rise in the number of deaths occurred during each of two heat waves taking place in Detroit in successive years (May, 1962, and June-July, 1963). Persons aged 60 years or more were at special risk, and cerebrovascular accident was unduly prominent among reported causes of death. When the experience of 1962-1963 is compared with an equivalent in 1953-1955, the increase of cerebrovascular accident among recent heat-related deaths is striking. Among etiological factors to be explored in a follow-up case study of heat victims in Detroit are predisposing or contributing clinical diseases, unusual exposure to environmental heat, and the frequency of electrolyte and drug regimens, particularly those including the newer diuretics and hypotensive agents.
Schuman SH, Anderson CP, Oliver JT. Epidemiology of Successive Heat Waves in Michigan in 1962 and 1963. JAMA. 1964;189(10):733–738. doi:10.1001/jama.1964.03070100027005