Diabetic pulmonary microangiopathy and its association with glycated haemoglobin and other diabetic complications.

Diabetes mellitus is a systemic disease now recognized to affect the lungs through microangiopathy. This cross-sectional study assessed pulmonary function via spirometry in 132 diabetics and 132 controls. Diabetics showed significantly reduced FVC, FEV1 and PEFR, consistent with a restrictive pattern. Poor glycemic control correlated strongly with reduced lung function, while disease duration did not. Spirometry findings also correlated with albuminuria and retinopathy, supporting early screening utility.