Morphological changes of respiratory muscles in patients with chronic obstructive pulmonary disease and different severity of respiratory failure
Abstract
Morphologic examination of respiratory muscles in 71 cases using light and electronic microscopy and morphometry revealed respiratory muscle pathology in COPD patients with different severity of respiratory failure. Mild respiratory failure was characterized by dystrophic and hypertrophic changes prevailed, moderate respiratory failure showed predominant necrotic changes, severe respiratory failure was accompanied by fibrotic tissue spread in necrotic foci and in stroma. The greatest lesions were observed in the inner intercostal muscles, and the slightest ones were in the diaphragm. The morphometric study revealed shifts of the ratio of the parenchyma and stroma due to enlargement of the stromal component. Correlations were found between the latter parameters and FEV1 (forced expiratory volume at one second).
About the Author
I. S. PlatonovaRussian Federation
Competing Interests:
No
References
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Review
For citations:
Platonova I.S. Morphological changes of respiratory muscles in patients with chronic obstructive pulmonary disease and different severity of respiratory failure. PULMONOLOGIYA. 2004;(5):23-27. (In Russ.)