Aim of study:– To evaluate spirometry in patients with Metabolic Syndrome exclusively for Asian men and women.

Objective of study:– To look for restrictive, obstructive and mixed pulmonary defect among patients of metabolic syndrome.

Study design:– All admitted patients who were planned for any surgery by general anesthesia were selected. In pulmonary function test, obstructive lung impairment was considered when FEV1–to–FVC ratio was less than 0.70 and an FVC was more than equal to 80% of the predicted value. Restrictive lung impairment was considered when FVC was less than 80% of the predicted value and an FEV1–to–FVC ratio was more than equal to 0.70. Mixed lung impairment was considered when FEV1–to–FVC ratio was less than 0.70 and FVC was less than 80% of the predicted value.

Salient findings of results:– 100 patients were studied. Restrictive pulmonary defect was in 58%, mixed pulmonary defect was in 8% individuals, whereas 34% subjects had normal pulmonary function. Mean age with normal pulmonary function test was 53.53years; mean age with mixed defect was 65 years. Lung function in these patients was not found to be dependent on sex, height, weight, waist circumference, body mass index, antihypertensive medication, smoking, alcohol drinking, physical activity, high density lipoprotein and triglyceride level.

Conclusion:– Metabolic syndrome is associated with impaired lung function, predominantly restrictive type. With increasing age, mixed pulmonary defect is found to be associated.