• N Heurlin, C Brattström, G Tydén, A Ehrnst, and J Andersson.
• Department of Pulmonary Diseases, Karolinska Institute, Huddinge University Hospital, Stockholm, Sweden.
• Scand. J. Infect. Dis. 1989 Jan 1; 21 (3): 245-53.

AbstractThe microbiological etiology of pneumonia in 34 renal transplant patients with clinical and X-ray evidence of pulmonary parenchymal disease was studied. Fiberoptic bronchoscopy with bronchoalveolar lavage (BAL), transbronchial lung biopsy (TBB) and brushing was performed on 18 patients. Laboratory evaluation included histological and cytological methods, cultures for bacteria, fungus and virus and immunofluorescence techniques for the detection of Pneumocystis carinii, cytomegalovirus (CMV) and legionella. Serum samples were obtained concomitantly for antibody studies. CMV, the most common etiology, was considered to be the cause of disease in 18/34 patients. All but one of these patients had positive CMV isolates in culture on leucocytes. Pulmonary edema was found in 7 patients, bacterial pneumonia in 11 patients, P. carinii in 4 patients and Candida albicans in 1 patient. Multifactorial etiology was found in 12/34 cases. The overall mortality was 32%. Bronchoscopy gave correct diagnosis in 13/14 patients with infectious pulmonary diseases (93%). Bronchoscopy procedures were well tolerated and should be considered in transplant patients with evidence of pulmonary parenchymal disease.

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