angina at night

Overview

Angina at night is chest pain or discomfort that happens when you are lying down to sleep or during sleep. It is a sign that your heart is not getting enough oxygen-rich blood. This condition is also called nocturnal angina.

It is less common than angina during exercise, but it is not rare. Many people with stable angina experience episodes at night.

It most often affects people who already have coronary artery disease, particularly older adults and those with risk factors like high blood pressure, diabetes, or smoking.

Symptoms

Common symptoms

• Chest pain or pressure that may feel like squeezing or fullness
• Shortness of breath
• Pain that spreads to your arms, neck, jaw, or back
• A feeling of indigestion or heartburn

Symptoms in children

• Angina at night is very rare in children, but if it occurs, symptoms may be similar to adults. Children may not describe pain clearly; they might appear irritable or tired.

Symptoms in older adults

• Older adults may have more subtle symptoms like fatigue, shortness of breath, or confusion rather than classic chest pain.

Causes

Main causes

• Narrowed arteries (atherosclerosis) reduce blood flow to the heart.
• When you lie flat, more blood returns to the heart, making it work harder. If arteries are narrow, the heart may not get enough oxygen.

Risk factors

• Smoking
• High blood pressure
• High cholesterol
• Diabetes
• Being overweight or obese
• Lack of physical activity
• Family history of heart disease

When to see a doctor

See a doctor urgently if:

• If you have new angina at night or your symptoms are getting worse, see a doctor urgently or go to the emergency department.

Book a routine appointment if:

• If you have known angina and it becomes more frequent or bothersome, make an appointment with your doctor.

Diagnosis

A doctor will review your symptoms, medical history, and perform tests to check your heart.

Tests that may be done

• Electrocardiogram (ECG) – records your heart's electrical activity
• Blood tests – to check for heart damage or risk factors
• Stress test – to see how your heart works during exercise
• Coronary angiography – a special X-ray to look at blood flow in your arteries

What to expect at your appointment

The doctor will ask about your symptoms (when they happen, how long they last) and may recommend tests to find the cause. You might also have a sleep study to rule out other conditions like sleep apnea.

Treatment

Treatment aims to reduce symptoms and prevent heart attacks. Your doctor will create a plan that fits your needs.

Self-care at home

• Elevate your head with pillows when sleeping to reduce the workload on your heart.
• Avoid heavy meals, caffeine, or alcohol close to bedtime.
• Manage stress with relaxation techniques like deep breathing.
• Quit smoking if you smoke.

Medical treatments

Medications can improve blood flow to the heart and reduce its workload. These include nitrates (which widen blood vessels), beta-blockers (which slow the heart rate), and calcium channel blockers (which relax arteries). Always take medications as prescribed by your doctor.

When is surgery considered?

If medications are not enough, procedures like angioplasty (opening narrowed arteries with a balloon) or bypass surgery (creating a detour around blocked arteries) may be considered.

Living with this condition

Monitor your symptoms, take medications exactly as prescribed, and know when to call for help. Keep a diary of your angina episodes to share with your doctor.

Lifestyle tips

• Eat a heart-healthy diet low in saturated fat, salt, and added sugars.
• Get regular physical activity as advised by your doctor – aim for 30 minutes most days.
• Maintain a healthy weight.
• Avoid smoking and limit alcohol.

Diet and exercise

Eat plenty of fruits, vegetables, whole grains, and lean protein (like fish, chicken, or beans). For exercise, walking is a good start. Always check with your doctor before starting a new activity.

Mental health and emotional wellbeing

Living with angina can cause anxiety, fear, or depression. It is normal to feel worried. Talk to your doctor or a counselor. Connecting with others who understand can also help.

Prevention

You can reduce your risk by managing heart disease risk factors: control blood pressure, cholesterol, and diabetes; quit smoking; eat a healthy diet; and stay active.

Vaccines

Get recommended vaccines like the flu and pneumonia vaccines, as infections can stress your heart.

Screening programmes

Regular check-ups for blood pressure, cholesterol, and diabetes are important. If you have a family history of heart disease, talk to your doctor about when to start screening.

Complications

If left untreated

• Heart attack (myocardial infarction)
• Heart failure (when the heart cannot pump well)
• Arrhythmias (irregular heartbeats)
• Sudden cardiac arrest

Long-term outlook

With proper treatment, most people with angina at night can manage their symptoms and lead active, fulfilling lives. Following your care plan and making healthy changes can greatly improve your outlook.

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