Assessment of pulmonary function tests among patients with hypothyroidism
Keywords:
hypothyroidism, spirometry, FEV1/FEV6 proportionAbstract
Background: The respiratory system involvement in hypothyroidism varies from mild dyspnea to a more severe respiratory failure. This has been reported as reduction in expiratory and inspiratory muscle strength, alveolar hypoventilation along with reduction of hypoxic and hypercapnic ventilatory drives and decreased maximal breathing capacity and decreased diffusion capacity among hypothyroid patients. Material & Methods: The present prospective study was conducted at department of respiratory medicine of our tertiary care hospital. In present study, we enrolled 50 study participants from outdoor and from ward by simple random sampling. Clearance from Institutional Ethics Committee was taken before start of study. Written informed consent was taken from each study participant Results In the present study, majority of patients showed obstructive pattern i.e. 30% which was followed by mixed pattern among 22% patients and 18% of patients showed restrictive pattern. 30% of patients showed normal respiratory pattern on pulmonary function test. On the basis of the Spirometry examination finding among case group, the mean value of FEV1 (L) was 1.38±0.68, the man value of FVC(L) was 2.24±0.71. on assessment the mean value of FEV1/FVC proportion (postbronchodilator) was 61.6 ±11.3.
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