A study of heat-related deaths associated with the 1993 heat wave in P
hiladelphia, Pennsylvania, was conducted. Most of these deaths were in
the susceptible elderly with preexisting natural diseases who lived a
lone without air conditioning in upstairs bedrooms with windows shut,
thus creating an even hotter environment. These excessive deaths under
such conditions did not meet the standard clinical criteria for hyper
thermia because of varying postmortem intervals. Therefore, the author
s stress the utility of a postmortem definition of heat-related death
to better define the magnitude of health risk posed by hot weather and
warn public health and other agencies to take preventative measures.