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J Korean Soc Emerg Med > Volume 32(6); 2021 > Article
Journal of The Korean Society of Emergency Medicine 2021;32(6): 570-574.
응급실에서 과호흡 증후군(hyperventilation syndrome) 환자 진단을 위한 호기말 이산화탄소 농도(end tidal carbon dioxide) 측정의 임상적 유용성
변인우1 , 김영식1 , 하영록1 , 신태용2 , 정루비1 , 이규현1 , 유우성1
1분당제생병원 응급의학과
2아산충무병원 응급의학과
The clinical utility of end tidal carbon dioxide in hyperventilation syndrome patients in emergency department
Inwoo Byun1 , Young Sik Kim1 , Young Rock Ha1 , Tae Young Shin2 , Rubi Jeong1 , Kyu Hyun Lee1 , Woosung Yu1
1Department of Emergency Medicine, Bundang Jesaeng Hospital, Seongnam, Korea
2Department of Emergency Medicine, Asan Chungmu Hospital, Asan, Korea
Correspondence  Inwoo Byun ,Tel: 031-779-0120, Fax: 031-779-0839, Email: ljhlover84@naver.com,
Received: August 28, 2020; Revised: October 15, 2020   Accepted: October 20, 2020.  Published online: December 31, 2021.
Arterial blood gas analysis (ABGA) is routinely performed in hyperventilation syndrome (HVS) patients in the emergency department (ED). We tried to substitute end-tidal carbon dioxide (ETCO2) for arterial partial pressure of carbon dioxide (PaCO2) in HVS patients in ED.
It was a prospective observational cohort study of HVS patients from May 2019 to March 2020. Data of age, sex, vital sign, ETCO2 and ABGA were collected. We compared the Pearson correlation between ETCO2 and PaCO2.
A total of 135 HVS patients were included in the study. The average value for ETCO2 was 24.9±7.2. It showed a significant linear between ETCO2 and PaCO2. The Pearson correlation coefficient was 0.893 (P<0.001). The linear correlation coefficients of ETCO2 <20 mmHg and ETCO2 20-35 mmHg groups were 0.513 and 0.827, respectively (P<0.001).
We suggest that ABGA can be replaced by ETCO2 in HVS patients in ED.
Key words: ETCO2; Hyperventilation syndrome; Emergency department; Arterial blood gas analysis
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