| Respiratory infection by mycoplasma pneumoniae. |
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Hong Bae, Jong Min Won, Dong Geun Jang, Hye Won Kim, Il Sung Lee, Ho Taek Kim |
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| Mycoplasma Pneumoniae 에 의한 호흡기감염 |
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배홍, 원종민, 장동근, 이일성, 김호택 |
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강서병원 가정의학과 강서병원 방사선과 강서병원 소아과 |
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| Abstract |
We classified 121 patients who admitted to the Department of Pediatrics, Kang Seu Hospital between March, 1990 and August, 1990 due to severe cough or high fever to three groups based on chest x-ray findings and cold agglutination test. Group I was 31 cases of Mycoplasmal pneumonia which showed signs of pneumonia on chest x-ray and cold agglutin titration of 1:64 or titration with four fold increase during follow up study. Group Ⅱ was 16 cases of non-Mycoplasmal pneumonia which showed signs of pneumonia on chest x-ray and cold agglutin titration of less than 1:32 or titration with no four fold increase during follow up study. Group Ⅲ was 38 cases of non-pneumonic Mycoplasmal infection which showed no pneumonic sign on chest x-ray and cold agglutin titration of 1:64 or titration with four fold increase during follow up study. The remainder was not involved in our study. Clinical data and chest x-ray findings were analysed prospectively.
The results were as follows;
1. Among the total 69 cases with Mycoplasma pneumoniae infection, the frequency of nonpneumonic Mycoplasma pneumoniae infection was 38 cases(55.0%).
2. We classified age to three classes(below 5 years old, 6-9 years old, above 10 years old). In the Group I, the frequency of 6-9 years was more than Group Ⅱ, significantly(p<0.05).
3. As for the clinical symptoms on admission, the most frequent symptoms were cough, fever, such as usual constitutional symptoms of pneumonia, in order of frequency in Group I and Group Ⅱ. In the Group Ⅲ, the most frequent symptom was high fever, but cough was less common than Group I, significantly(p<0.01)
4. We classified symptom durations before admisson to three classes(within 1 week, 1-2weeks, above 2 weeks). In the Group I, the frequency of 1-2 weeks was more common than Group Ⅲ, significantly(p<0.01). In the Group Ⅲ, the frequency of within 1 week was more common than I, significantly(p<0.01).
5. Comparing chest x-ray findings between Group I and Group Ⅱ which showed pneumonia sign on chest x-ray, air space consolidation in Group I and bronchopneumonia in GroupⅡ were more common than each other, significantly(p<0.05). Among the sites involved, unilateral involvement was markedly more common than bilateral involvement and right involvement was markedly more common than left involvement.
6. Mean duration of hospitalization of the Group Ⅲ was 4.9 days, it was shorter than Group I, significantly(p<0.01).
As above results, non-pneumonic Mycoplasma prneumonise infection was above 50% of cases with cold agglutinin level equal or more than 1:64. Therefore, the patients showing the symptom of upper and lower respiratory infection without pneumonic sign also shoud be treated with keeping in mind of the possibility of Mycoplasma pneumonias infection. |
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