And if you suffer from unstable angina, which is chest pain that can occur at rest or with exertion, you may have found that "nocturnal angina," which is chest pain while you sleep, is keeping you from getting a restful sleep.
"If someone has nocturnal angina, it may be reasonable to have a sleep study to identify any triggers of stress at night, such as sleep apnea," Dr.
The patient normally had stable angina pectoris but now had been experiencing unstable angina and nocturnal angina
. His electrocardiogram at the time demonstrated sinus rhythm with anterolateral ST segment depressions and T wave inversions and isolated ST segment elevation in aVR.
Other good candidates for sleep studies to confirm a diagnosis of obstructive sleep apnea include patients with unexplained heart failure, nocturnal angina
, or a history of heavy snoring with daytime drowsiness.
Role of respiratory sleep disorders in the pathogenesis of nocturnal angina and arrhythmias.
Nocturnal angina and ST depression have been described in OSA patients, and may be diminished after treatment with CPAP (46,47).