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J Korean Soc Emerg Med > Volume 6(2); 1995 > Article
Journal of The Korean Society of Emergency Medicine 1995;6(2): 311-318.
DIURNAL VARIATION OF NON-TRAUMATIC CARDIAC ARREST PATIENTS IN WONJU CITY
Kang Hyun Lee1, Young Sik Kim1, Sung Oh Hwang1, Kyoung Soo Lim1, Jin Woong Lee1, Jong Chun Lim2, Keum Soo Park2, Kyung Hoon Choe2
1Department of Emergency Medicine, Wonju College of Medicine, Yonsei University
2Department of Internal Medicine, Wonju College of Medicine, Yonsei University
  Published online: December 31, 1995.
ABSTRACT
To estimate the quality of the emergency medical services system of Wonju City, we studied the diurnal variations of 179 non-traumatic cardiac arrest victims who received cardiopulmonary resuscitation at the emergency center of Wonju Christian Hospital. Diurnal variations of non-traumatic cardiac arrest patients were as follows ; The occurence of cardiac arrest at day-time was higher than night-time; 18 cases (11%) from midnight to AM 4, 25 cases 04%) from AM 4 to AM 8, 42 cases (24%) from AM 8 to AM 12, 46 cases (25%) from AM 12 to PM 4, 35 cases (19%) from PM 4 to PM 8, 13 cases (7%) from PM 8 to midnight. Witness cardiac arrest was increased more during the day than night ; 40% from midnight to AM 4, 48% from AM 4 to AM 8, 57% from AM 8 to AM 12, 52% from AM 12 to PM 4, 60% from PM 4 to PM 8, 38% from PM 8 to midnight. The transportation time at night-time cardiac arrest was more longer than day-time cardiac arrest ; 30土12mins from midnight to AM 4, 26土9mins from AM 4 to AM 8,27 土12mins AM 8 to AM 12, 25土11mins from AM 12 to PM 4, 25±9mins from PM 4 to PM8, 3.5士15 mins from PM 8 to midnight. The rate of restoration of spontaneous circulation(ROSC) in day-time cardiac arrest was higher than the night-time cardiac arrest ; 30% from midnight to AM 4, 36% from AM 4 to AM 8, 32% AM 8 to AM 12, 44% from AM 12 to PM 4, 41% from PM 4 to PM 8, 15% from PM 8 to midnight. The survival rate of cardiac arrest has been correlated with collapse time, early bystander CPR, early advanced care. To improve outcome for prehospital cardiac arrest, we concluded that early bystander CPR, and early advanced life support should be performed at the scene and during the transportation especially at night.
Key words: Nontraumatic cardiac arrest, Diurnal variation
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