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Am J Respir Crit Care Med. 1995 Feb;151(2 Pt 1):527-33.

Pulmonary lymphangioleiomyomatosis: a report of 46 patients including a clinicopathologic study of prognostic factors.

Author information

1
Department of Laboratory Medicine, Chest Disease Research Institute Hospital, Kyoto, Japan.

Abstract

The clinical and pathologic features of 46 patients from Japan, Korea, and Taiwan with pulmonary lymphangioleiomyomatosis (LAM) were studied. Only two (5%) among 40 evaluable treatments were assessed to be effective. Some prognostic factors of LAM were recognized. A reduction of the forced expiratory volume in one second/forced vital capacity (FEV1/FVC) ratio was a poor prognostic factor at 2 yr after the first examination, with a statistically significant difference (p < 0.05). An increase in the percentage of predicted total lung capacity (%TLC) correlated with a poor prognosis at 2, 3, and 5 yr after the first examination, with statistically significant differences (p < 0.05). Histologically, two types of pulmonary lesions were observed; a predominantly cystic type and a predominantly muscular type. Patients with predominantly cystic LAM lesions showed a tendency to a poor prognosis from 2 to 5 yr after the biopsy. Among open lung biopsy findings, higher grades of abnormal areas were unfavorable as a prognostic factor from 2 to 5 yr after the biopsy, with statistically significant differences (p < 0.05). Higher grades of cystic lesions correlated inversely with survival at 2, 4, and 5 yr after the lung biopsy, with statistically significant differences (p < 0.05).

PMID:
7842216
DOI:
10.1164/ajrccm.151.2.7842216
[Indexed for MEDLINE]

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