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Updated: Jul 7, 2026

Drug-Induced Sleep Endoscopy (DISE) with Target Controlled Infusion (TCI) and Bispectral Analysis in Obstructive Sleep Apnea
Published on: December 6, 2016
Cardiac tumor masquerading as obstructive sleep apnea syndrome
Kin-Hoi Thung1, Innes Y P Wan, Gabriel Yip
1Division of Cardiothoracic Surgery, Department of Surgery, Prince of Wales Hospital, Shatin, The Chinese University of Hong Kong, Hong Kong, SAR, China.
A large right atrial hemangioma mimicked obstructive sleep apnea syndrome (OSAS) in a 57-year-old man. Surgical removal of the cardiac tumor resolved his OSAS-like symptoms, highlighting a rare diagnostic challenge.
Area of Science:
- Cardiology
- Oncology
Background:
- Obstructive sleep apnea syndrome (OSAS) is a common condition, often treated with continuous positive airway pressure (CPAP).
- Cardiac tumors are rare and can present with diverse clinical manifestations.
Observation:
- A 57-year-old male presented with symptoms suggestive of OSAS, leading to inappropriate CPAP treatment.
- Cardiac investigation revealed a large right atrial hemangioma intermittently obstructing the tricuspid valve.
Findings:
- The right atrial hemangioma was surgically excised via cardiopulmonary bypass.
- Postoperative recovery was uneventful, with complete resolution of OSAS-like symptoms.
Implications:
- This case highlights the importance of considering rare cardiac pathologies in the differential diagnosis of OSAS.
- Right atrial hemangiomas can present atypically, mimicking other conditions and leading to diagnostic delays.
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