federal government websites often end in .gov or .mil. the site is secure. purpose: there is a high incidence of sleep apnea in patients with untreated hypothyroidism. we undertook a review of 10 consecutive hypothyroid patients with sleep apnea to investigate mechanisms and management of these two disorders. patients and methods: polysomnograms were obtained in 10 consecutive hypothyroid patients referred to our sleep disorders unit.
lung function, blood gas values, and awake supraglottic resistance were also assessed in each patient. results: all 10 patients had sleep apnea and were treated with thyroxine. nocturnal angina and ventricular arrhythmias developed in two patients, despite the use of low thyroxine doses. initiation of cpap prevented further angina or arrythmia in the patients with these cardiac complications. treatment of hypothyroidism in the presence of sleep apnea is potentially hazardous and may lead to cardiovascular complications.
we sought to determine the prevalence of previously unrecognized hypothyroidism in a series of patients evaluated for osa and whether an association between hypothyroidism and osa was present. to measure the association of hypothyroidism with osa, a case-control study was also conducted. referral for sleep-related complaint was at the discretion of ghc primary care providers who generally referred patients with suspected osa to a pulmonologist and patients with primary complaints of snoring to an otolaryngologist. a case-control comparison to evaluate the association of prior hypothyroidism with the presence of osa was performed. the number of years prior to initial visit that hypothyroidism was noted to be present ranged from 5 mo to 22 yr and 15 subjects were diagnosed more than 2 yr prior to presentation with a sleep complaint.
the association of hypothyroidism to osa was greater in females and in those less than 50 yr of age. the prevalence of hypothyroidism was estimated in the same way for cases and control subjects. even in patients with overt hypothyroidism and osa, the effect of thyroid hormone replacement on sleep-disordered breathing has been variable. the evidence in humans of an association between osa and hypothyroidism consists of a number of small case series (11 to 26 patients) that have demonstrated a prevalence of osa in patients with hypothyroidism ranging from 25 to 82% (7, 11, 13, 15). the published data argue in favor of an association between osa and hypothyroidism.
purpose: there is a high incidence of sleep apnea in patients with untreated hypothyroidism. thyroxine treatment is said to significantly reduce the apnea case series have reported that 50 to 100% of patients with hypothyroidism and osa show a reduction in sleep-disordered breathing with research studies have found a link between hypothyroidism and sleep apnea. the condition may cause changes in the upper airway that could lead, hypothyroidism and sleep issues, hypothyroidism and sleep issues, can thyroid nodules cause sleep apnea, sleep apnea hyperthyroidism, central sleep apnea and hypothyroidism.
hypothyroidism also affects your breathing. people with hypothyroidism often experience shallow breathing, particularly at night. this slow and shallow breathing can increase your risk of developing sleep apnea. when the muscles in the throat relax during the night, your airways can become blocked. patients with hypothyroidism typically have enlarged thyroids. this swelling can lead to obstructed airways and potentially sleep apnea. people with an underactive thyroid are more likely to develop sleep apnea, and about 4 in 10 people with an underactive thyroid also have sleep apnea. the association between thyroid disorders and sleep apnea (sa) has been studied but remains unclear. hypothyroidism, subclinical and overt, hypothyroidism, defined as the decreased production of thyroid hormones, may affect overall sleep quality. although no direct some people with hypothyroidism and sleep apnea will experience insomnia. sleep apnea may cause disrupted breathing that leads to sudden, hypothyroidism and snoring, thyroid removal and sleep apnea.
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