Central sleep apnea in untreated hypothyroidism: A rare association

Sapna Erat Sreedharan, Pragati Agrawal, Ashalatha Radhakrishnan

Thyroid Research and Practice 2016 13(2):83-85

Obstructive sleep apnea (OSA) has been reported with untreated hypothyroidism. Here, we report a young patient referred to us due to prolonged apneas detected during recovery from minor surgery done under a short-acting general anesthetic drug. Polysomnography (PSG) was suggestive of severe OSA with high central index. He was later found to have severe hypothyroidism. Thyroxine replacement for 3 months followed by a repeat PSG showed persisting severe OSA but with no central events. This case highlights the rare association of central sleep apnea in untreated hypothyroidism which can be easily overlooked.

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