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J Korean Soc Emerg Med > Volume 14(4); 2003 > Article
Journal of The Korean Society of Emergency Medicine 2003;14(4): 409-414.
Descriptive Study of Prognostic Factors of Exertional Heat Stroke in Military Personnel
You Hwan Jo, Sang Do Shin, Dong Hoon Kim, Ik Joon Jo, Joong Eui Rhee, Gil Joon Suh, Yeo Kyu Youn, Kyu Seok Kim
1Department of Emergency Medicine, Seoul National University Hospital, Korea. suhgil@snu.ac.kr
2Department of Emergency Medicine, Armed Forces Capital Hospital, Seoul, Korea.
ABSTRACT
PURPOSE:
This study was designed to evaluate the characteristics of exertional heat stroke between the non-survival and the survival groups.
METHODS:
From January 1996 to December 2002, patients with exertional heat stroke who came to the emergency department of a military hospital were enrolled. Data on individual factors, atmospheric conditions, pre-hospital management, initial vital signs, laboratory findings, presence of seizure attack, and performance of intubation were reviewed retrospectively and compared between the nonsurvival and the survival groups.
RESULTS:
During the study period, 22 patients were diagnosed as suffering from exertional heat stroke and 5 patients died. Most of the episodes occurred during the summer days with high ambient temperature (mean 30.6+/-3.0 degrees C) and humidity (mean 75.6+/-7.7%), and 13 patients were unacclimatized recruits. The non-survival group showed a lower initial systolic blood pressure, platelet count, arterial pH, and HCO3 - level, and a higher serum creatinine, ALT, and amylase level than did the survival group (p<0.05). However there were no significant differences in individual factors, atmospheric conditions, pre-hospital management, initial pulse rate, temperature, white blood cell count, hemoglobin count, and the sodium, potassium, BUN and AST levels between the two groups.
CONCLUSION:
Initial systolic blood pressure, platelet count, and arterial pH, as well as HCO3 -, serum creatinine, ALT, and amylase levels seem to be important factors for the prognosis of exertional heat stroke.
Key words: Exertional heat stroke, Prognostic factor, Military personnel
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