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J Korean Soc Emerg Med > Volume 30(3); 2019 > Article
Journal of The Korean Society of Emergency Medicine 2019;30(3): 281-288.
발열을 주소로 응급실에 내원한 어린 영아의 중증 세균성 감염의 특성 확인 및 Philadelphia criteria와 modified Philadelphia criteria의 타당성 분석: 후향적 다기관 연구
이현정1 , 이동욱1 , 장혜영1 , 노현1 , 임훈1 , 박준수2 , 송준환2
1순천향대학교 의과대학 응급의학교실
2순천향대학교 의과대학 소아과학교실
Clinical characteristics of febrile young infants with serious bacterial infection in the emergency departments in Korea and validation of Philadelphia criteria and modified Philadelphia criteria: retrospective multicenter study
Hyun Jung Lee1 , Dong Wook Lee1 , Hye Young Jang1 , Hyun Noh1 , Hoon Lim1 , Joon Soo Park2 , Jun Hwan Song2
1Department of Emergency Medicine, Soonchunhyang University College of Medicine, Cheonan, Korea
2Department of Pediatrics, Soonchunhyang Unversity College of Medicine, Cheonan, Korea
Correspondence  Hoon Lim ,Tel: 032-621-5300, Fax: 032-327-3549, Email: 43210@schmc.ac.kr,
Received: November 11, 2018; Revised: December 26, 2018   Accepted: January 16, 2019.  Published online: June 30, 2019.
ABSTRACT
Objective:
This study examined the characteristics of febrile young infants with a serious bacterial infection (SBI) who visited emergency centers in Korea and validated the Philadelphia criteria and modified Philadelphia criteria to predict the risk of SBI
Method:
This was a retrospective study conducted on 450 infants aged 31 days to 56 days who visited three emergency centers with fever from September 2014 to August 2017. The characteristics of the SBI patients were analyzed, and the validation of the Philadelphia and modified Philadelphia criteria sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and accuracy were checked.
Results:
Of 450 patients, 165 patients (36.7%) had SBI, such as urinary tract infection (33.3%), bacteremia (4.0%), acute osteomyelitis (0.2%), and bacterial meningitis (BM) in two patients (0.4%). The most common pathogen of invasive bacterial infection was Escherichia coli. In the Philadelphia criteria, the sensitivity, specificity, PPV, NPV, and accuracy were 73.9%, 47.0%, 44.7%, 75.7%, and 56.9%, respectively. In the modified Philadelphia criteria that excluded lumbar puncture as a predictor, the sensitivity, specificity, PPV, NPV, and accuracy were 93.3%, 31.9%, 44.3%, 89.2%, and 54.4%, respectively. The most common failed low risk criteria was appearance (43.3%). Two patients with bacterial meningitis were excluded from low risk group by the modified Philadelphia criteria. Although one out of 2 patients met the failed low risk criteria due to their poor condition, this factor is not objective, so BM can be missed.
Conclusion:
Bacterial meningitis was too rare in this study. New criteria are needed to predict SBI. The Philadelphia and modified Philadelphia criteria were not useful for predicting SBI in this study. Other prediction models will be needed to predict SBI in the vaccination era.
Key words: Fever; Infant; Bacterial; Meningitis; Lumbar puncture
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