What should you know about angina symptoms at night?

Nighttime symptoms may relate to coronary artery spasm, increased demand on the heart, or another condition altogether. Because heart attack symptoms can begin at rest, the severity and associated warning signs determine urgency.

Vasospastic angina can follow a recurring rest pattern and wake a person from sleep. Angina related to narrowed coronary arteries may also appear when the heart is under strain. Lying down can make reflux or some breathing problems more noticeable, and these can resemble cardiac discomfort.

Clues such as pressure versus burning, whether the discomfort spreads, its relationship to meals or position, and associated breathlessness or sweating help a clinician investigate. These clues cannot safely confirm the cause at home.

Sit up, stop any activity, and note when the episode began. Follow your prescribed angina action plan and use rescue medicine only as directed. If emergency warning signs are present or the discomfort does not settle as your plan predicts, call emergency services.

After a settled episode, arrange prompt clinical review. Write down bedtime medicines, evening meals, sleep position, the sensation and location, whether it spread, associated symptoms, and what brought relief. Do not dismiss recurrent episodes as indigestion without assessment.

Call emergency services now for severe, persistent, or worsening chest pressure; discomfort with sweating, nausea, faintness, or marked breathlessness; or pain moving into the arm, jaw, back, neck, or shoulder. New chest symptoms at rest also need emergency assessment. Do not drive yourself or wait until morning to see whether a red-flag episode returns.

Ask whether the timing suggests coronary spasm or another cause, whether an electrocardiogram or rhythm monitoring could help, and how to distinguish your familiar pattern from an emergency. Review the timing of all medicines and request exact rescue instructions for symptoms during sleep.