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 Original Articles |
| Clinical Study of Mycoplasma Pneumoniae Pneumonia |
| Jong Chan Shin, Myung Ik Lee, Soon Wha Kim, Keun Chan Sohn, Kyeung Eun Jung* |
| Department of Pediatrics, National Medical Center Seoul, Korea
Department of Bacteriology |
Vol.19 Num.1 (p47~56)
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A clinical study was made on 53 cases of mycoplasma pneumoniae pneumonia during the period of 2 years from July '84 to June '86. Those pneumonia patients were composed of 30 in-patients and 23 out-patients.
1) The high incidence was in the age of 3 to 6 years and female was more dominant over male patients in the ratio of 1.8:1.
2) Mean duration of hospitalization was 11.7 days in admitted patients.
3) Seasonal distribution showed increased incidence in autumn. 37 cases (69.8% of all patients) occurred from September to November.
4) Cough was the most common symptom and noted in all cases and then followed by fever, dyspnea and convulsion.
5) Cough was the most common symptom and noted in all cases and then followed by fever(28 cases), sputum expectoration (16 cases) and chest pain etc.
6) The cases in which duration of coughing was more than 7 days on initial visit were 37 cases (68%) out of 50 cases.
7) Moist rales was the most common auscultatory finding of chest (37 cases, 69.8%) and then followed by wheezing(14 cases) and coarse breathing sound etc.
8) Leukocyte counts in peripheral blood were the most common in the range of 5,001~10,000/mm3 (36 cases, 67.9%) and then followed by 10,001~15,000/mm3 (12 cases).
9) Neutrophil percentage in peripheral blood smear was the most common in the range of 61~70% (13 cases, 24.6%) and then followed by 51~60% (11 cases, 20.8%) etc.
10) The cases having more than 5% of eosinophiles in peripheral blood differential counts were 14 cases(26.4%) out of all cases.
11) Positive CRP cases were 14 cases (58.3%) out of 24 studied cases.
12) The cases in which ESR was higher than 10 mm/hr were 31 cases (71.7%) out of 49 studied cases and mean ESR value was 20.8 mm/hr.
13) Radiologic findings of pulmonary infiltration were the most common in Rt. lower lobe and perihilar region 19 cases (35.9%) in each, and then followed by left lower lung field 14 cases.
14) The cases which was improved within 7 days on chest radiography after adequate erythromycin treatment were 22 cases out of 34 cases.
15) Complications or associated findings were elevated serum transaminase (5 cases), skin rashes (5 cases), paranasal sinusitis (4 cases) and asthma attack (3 cases).
16) The cases treated initially with other than erythromycin were 38 cases (71.7%).
17) The cases in which indirect hemmagglutination test titer for mycoplasmal antibody was 1:40 or higher were 25 cases (75.9%) out of 29 cases.
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