Original Research Article
Year: 2021 | Month: January | Volume: 11 | Issue: 1 | Pages: 229-233
Effect of Hyperthyroidism on Respiratory Muscle Power
Gaafar .D1, Ibrahim .S2, Musa .O3
1Department of Physiology, University College of Aldarb, Jazan University, Kingdom of Saudi Arabia.
2Department of Physiology, Faculty of Medicine at Al-Gunfudah, Umm Alqura University, Kingdom of Saudi Arabia
3Department of Physiology, Faculty of Medicine. The National Ribat University. Khartoum. Sudan
Corresponding Author: Gaafar .D
ABSTRACT
Introduction: Hyperthyroidism affects respiratory system by many ways e.g. hyper metabolic effect and direct compression of enlarged thyroid on the trachea. Hyperthyroidism is also accompanied by skeletal muscle weakness so in the present study we assessed the effect of hyperthyroidism on respiratory muscle power in Gezira state in Sudan.
Methods: Twenty patients with hyperthyroidism (19 female, one male) aged 20-50 years, and twenty normal subjects matched for age, gender and height were investigated for pulmonary function tests (FVC,FEV1,PEFR) and respiratory muscle power (maximum expiratory pressure MEP)by using a spirometer, and Respiratory pressure meter (RPM).
Results: pulmonary function (FEV1, PEFR) and respiratory muscle pressure (MEP) in the hyperthyroid patients were significantly decreased compared with the normal control subjects (FEV1 p=0.013, PEFR p=0.010, MEP p=0.000), but there was no significant decrease in FVC (p=0.179).
Conclusion: These results confirm the impaired lung function and respiratory muscle weakness in patients with hyperthyroidism.
Key words: hyperthyroidism; respiratory muscle weakness; respiratory muscle strength; respiratory muscle power.