CPAP suppression of awake right-to-left shunting through patent foramen ovale in a patient with obstructive sleep apnoea.
case_report · Level V
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- Record sourced from PubMed, PMID 16192368.
- Also identified by PMC identifier 1747216.
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Abstract
The prevalence of an echocardiographically visible patent foramen ovale (PFO) is higher in patients with obstructive sleep apnoea syndrome (OSAS) than in normal controls. We report a patient who presented with OSAS and right-to-left shunting (RLS) through the PFO in whom the RLS disappeared after treatment for 1 week with nocturnal continuous positive airway pressure (CPAP). This case shows the role of OSA in generating an awake RLS through a PFO and its possible reversibility by CPAP. The mechanism of reversible awake RLS through PFO in OSAS is discussed.
Medical subject headings
- Continuous Positive Airway Pressure
- Heart Septal Defects, Atrial
- Sleep Apnea, Obstructive