Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0037315 (sleep apnea)
 8,000 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

We report a 36 years male, admitted to the hospital for progressive respiratory failure. Chest X ray and CT scan were normal. On admission, a severe bradycardia and slow intellectual activity were noted. Serum thyroid function tests showed a TSH over 150 microU/ml and T3 of 75 ng/ml. Thyroid substitution therapy was associated with a progressive improvement of respiratory function. Diaphragmatic dysfunction, central hypoventilation, airway obstruction, sleep apnea and pleural effusion have been previously reported in patients with hypothyroidism. Therefore, we recommend to measure TSH in patients with unexplained respiratory failure.
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PMID:[Global respiratory failure as the presentation form of hypothyroidism. Report of one case]. 1537 58

The relation between snoring and obstructive sleep apnea as well as hypothyroidism is the object of interest of many authors. The respiratory disturbances during sleep are often observed in patients suffering from hypothyroidism. The relation of snoring to overweight in those patients has not been taken into account. The aim of the study was to evaluate the relations between hypothyroidism and quantitative and qualitative respiratory disturbances during sleep. Additional aim was to establish the relations of sleep apnea syndrome, snoring, hypothyroidism and overweight. The subjects included 15 patients (11 females and 4 males) aged from 28 to 73 (mean 50.3) suffering from hypothyroidism. All of them underwent thyroid testing before and after the hormonal treatment. TSH and fT4 concentrations were determined. At the same time the sleep assessment (PolyMESAM) was performed twice. Data were obtained from sleep studies and questionnaires (Epworth sleepiness scale). After the thyroid hormones stabilization significant decrease of snoring severity was observed. On the contrary, the respiratory disturbance index (RDI), desaturation index (DI), the lowest saturation (LSAT) did not change significantly, however, the Epworth scale score showed significant improvement. The correlations showed the strong relation between loud snoring and TSH (r=0.73, p<0.01) and fT4 (r=-0.66, p<0.003) concentrations before the treatment. The analysis showed no correlation between body mass (BMI) and snoring. The hormonal stabilization in patients suffering from hypothyroidism causes improvement in snoring severity. Based on our investigation the relationship between hypothyroidism and severity of snoring and excessive daytime somnolence was confirmed. It indicates a possible connection between hypothyroidism and upper airway resistance syndrome.
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PMID:Sleep apnea syndrome and snoring in patients with hypothyroidism with relation to overweight. 1744 29

The prevalence of obstructive sleep apnea-hypopnea syndrome (OSAHS) ranges from 4 to 7% in men and from 2 to 5% in women. Its deleterious consequences such as traffic accidents, cardiovascular complications increasing morbidity and mortality, make it a major health problem. Apart from obesity (a major risk factor for OSAHS), hypothyroid patients are prone to reveal this phenotype. Although hypothyroidism seems an acknowledged risk factor for OSAHS, some authors report the lack of clinically relevant association. The argument partly depends on the increased prevalence of hypothyroidism in OSAHS patients, but the epidemiological data is limited and somehow inconsistent; even less is known about sub-clinical hypothyroidism in OSAHS patients. Even if frequency of overt and sub-clinical hypothyroidism in OSAHS patients is comparable to the general population, screening for it seems beneficial, as hormone replacement therapy may improve sleep disordered breathing. Unfortunately, this favorable outcome was found only in a few studies with limited number of patients with hypothyroidism. Yet, despite the lack of international guidelines and no large multicentre studies on the topic available, we think that TSH screening might prove beneficial in vast majority of OSAHS patients.
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PMID:Obstructive sleep apnea syndrome and hypothyroidism - merely concurrence or causal association? 2767 73