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Relationship between Complications of Mycoplasma Pneumonia and Titers of Cold Agglutinin and Mycoplasma Antibody in Children

Journal of the Korean Pediatric Society 1996;39(12):1680-1689.
Published online December 15, 1996.
Relationship between Complications of Mycoplasma Pneumonia and Titers of Cold Agglutinin and Mycoplasma Antibody in Children
Sung Soo Rim, Myung Hyun Cho, Byung Min Moon, Kyoung Sim Kim, Kibok Kim
Department of Pediatrics, Kwangju Christian Hospital, Kwangju, Korea
Mycoplasma폐렴 합병증과 냉응집소 및 Mycoplasma항체가와의 상관관계
임성수, 조명현, 문병민, 김경심, 김기복
광주기독병원 소아과
Abstract
Purpose
: To assess the relationship between the complications of mycoplasma pneumonia and titers of cold agglutinin and mycoplasma antibody in children.
Methods
: 120 cases of mycoplasmal pneumonia in children who were admitted to the Pediatric Department of Kwangju Christian Hospital between June 1993 and May 1994 were analyzed.
Results
: 1) The peak incidence of age was between 2 and 6 years, and the sex ratio of boy to girl was 1 : 1.1. 2) Chest X-ray examinations revealed that the most common type of pneumonia was bronchopneumonia(51 cases, 42.5%); unilateral involvement was common(60.8%); and the lower lobe was the most commonly involved(50 cases, 41.6%). 3) Pulmonary complications were sinusitis in 43 cases(35.8%), followed by atelectasis in 24, pleural effusion in 18, asthma in 15, pharyngitis in 9, laryngitis in 4 and Swyer-James syndrome in 1 case. 4) Extrapulmonary complications were hepatitis in 12 cases, proteinuria in 7, hematuria in 5, convulsion in 3, psychosis in 3 and nephrotic syndrome, encephalitis and disseminated intravascular coagulation in 1 each. 5) No significant relationships were found between the duration of pneumonia and cold agglutinin titer, and between the duration of pneumonia and mycoplasma antibody titer(p>0.05). 6) The occurrence rate of the complications was not related to cold agglutinin titer(r=0.291); but it was significantly related to mycoplasma antibody titer(r=0.764), i.e., the higher the mycoplasma antibody titer, the higher incidence of complications.
Conclusion
: The occurrence rate of complications of mycoplasma pneumonia was not related to cold agglutinin titer, but it was significantly correlated with mycoplasma antibody titer.
Key Words: Mycoplasma pneumonia, Complication


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