TY - JOUR
T1 - Cardiovascular and metabolic manifestations of heat stroke and severe heat exhaustion
AU - Costrini, Anthony M.
AU - Pitt, Henry A.
AU - Gustafson, Anthony B.
AU - Uddin, David E.
PY - 1979/2
Y1 - 1979/2
N2 - We prospectively studied the clinical, biochemical (including creatine phosphokinase [CPK] isoenzymes) and electrocardiographic features of exertional heat stroke in 13 patients (group 1) and severe heat exhaustion in 14 patients (group 2). Despite initial presentations with severe hyperthermia, tachycardia and hypotension, only one patient with heat stroke had myocardial ischemia. The CPK isoenzymes were not indicative of myocardial damage in any patient. The patients with heat stroke were somewhat more dehydrated than those with heat exhaustion as measured by differences in serum creatinine, sodium and osmolality, and the former (group 1) had a significantly lower initial glucose level (P < 0.05). Although significant differences in potassium were not observed in the pretreatment samples, at 12 hours the serum potassium was significantly lower in group 1 (P < 0.05). This suggests that this group may have been more potassium-depleted at the time of heat stroke. Prompt recognition and vigorous therapy were successful in rapidly lowering high temperatures and in preventing serious complications.
AB - We prospectively studied the clinical, biochemical (including creatine phosphokinase [CPK] isoenzymes) and electrocardiographic features of exertional heat stroke in 13 patients (group 1) and severe heat exhaustion in 14 patients (group 2). Despite initial presentations with severe hyperthermia, tachycardia and hypotension, only one patient with heat stroke had myocardial ischemia. The CPK isoenzymes were not indicative of myocardial damage in any patient. The patients with heat stroke were somewhat more dehydrated than those with heat exhaustion as measured by differences in serum creatinine, sodium and osmolality, and the former (group 1) had a significantly lower initial glucose level (P < 0.05). Although significant differences in potassium were not observed in the pretreatment samples, at 12 hours the serum potassium was significantly lower in group 1 (P < 0.05). This suggests that this group may have been more potassium-depleted at the time of heat stroke. Prompt recognition and vigorous therapy were successful in rapidly lowering high temperatures and in preventing serious complications.
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U2 - 10.1016/0002-9343(79)90548-5
DO - 10.1016/0002-9343(79)90548-5
M3 - Article
C2 - 425971
AN - SCOPUS:0018426260
SN - 0002-9343
VL - 66
SP - 296
EP - 302
JO - The American journal of medicine
JF - The American journal of medicine
IS - 2
ER -