J Sleep Med.
2025 Apr;22(1):35-38. 10.13078/jsm.250008.
Obstructive Sleep Apnea as an Underrecognized Cause of Nocturnal Arrhythmia: A Case Report
- Affiliations
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- 1Department of Neurology, Pusan National University Yangsan Hospital, Yangsan, Korea
- 2Department of Neurology, Pusan National University School of Medicine, Busan, Korea
- 3Department of Neurology, Pusan National University Hospital, Busan, Korea
- KMID: 2567474
- DOI: http://doi.org/10.13078/jsm.250008
Abstract
- Obstructive sleep apnea (OSA), characterized by nocturnal airway obstruction, hypoxia, and arousal, is a significant risk factor for cardiovascular diseases, including arrhythmia. This case report describes the association between OSA and nocturnal sinus tachycardia in a 58-year-old woman who presented with sleep maintenance difficulties and recurrent nocturnal tachycardia. Polysomnography confirmed a direct correlation among the apnea/hypopnea episodes, tachycardia, and sleep maintenance difficulties. Continuous positive airway pressure therapy effectively resolved tachycardia and sleep maintenance difficulties, reducing the number of medications required to alleviate the symptoms. This report highlights the importance of considering OSA as a possible cause of unexplained nocturnal tachycardia.
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