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Heart inflammation can be caused by infections, particularly from viruses or bacteria; medicines; or damage to the heart’s tissue or muscle from autoimmune diseases, medicines, environmental factors, or other triggers.

Signs and symptoms vary based on the type of angina you have and on whether you are a man or a woman. Angina symptoms can differ in severity, location in the body, timing, and how much relief you may feel with rest or medicines. Since symptoms of angina and of heart attack can be the same, call 9-1-1 if you feel chest discomfort that does not go away with rest or medicine. Angina can also lead to a heart attack and other complications that can be life-threatening.

There are three main types of coronary heart disease: obstructive coronary artery disease, nonobstructive coronary artery disease, and coronary microvascular disease. Coronary artery disease affects the large arteries on the surface of the heart. Many people have both obstructive and nonobstructive forms of this disease. Coronary microvascular disease affects the tiny arteries in the heart muscle.

You may have an increased risk of asthma because of your environment or occupation, your family history or genes, other medical conditions, your race or ethnicity, or your sex.

Your genes or other medical conditions can cause pulmonary hypertension. Certain medical conditions can damage, change, or block the blood vessels of the pulmonary arteries. The cause of pulmonary hypertension is not always clear.

Some people have severe symptoms of coronary heart disease. Others have no symptoms at all. If you have “silent” coronary heart disease, you may not have any symptoms until you have a heart attack or other complication.

You may have an increased risk of cardiogenic shock because of your age, any cardiovascular or other medical conditions you have, medical procedures, your race or ethnicity, and your sex.

Cardiogenic shock is life-threatening and requires rapid diagnosis and identification of the cause, and emergency medical treatment. Treatments include medicines, heart procedures, and medical devices to support or restore blood flow in the body and prevent organ damage. Because cardiogenic shock is a serious medical condition affecting multiple body organs, a team of medical specialists usually provides care. Some medical devices may be used temporarily to stabilize or support you until a permanent device can be implanted or until a heart transplant can be performed. For people who have severe organ damage and may not survive after cardiogenic shock, palliative care or hospice care may help them have a better quality of life with fewer symptoms.

During CABG, a surgical team will take one or more blood vessels from another part of your body and connect it to the blocked artery in your heart. CABG may be performed in one of three ways. In traditional CABG, the chest is cut open and a machine pumps your blood. In “off-pump” CABG, the chest is opened, but a machine for pumping blood is not used. With minimally invasive CABG methods, only small cuts are made in the chest, and a machine is not used.

Signs and symptoms of circadian rhythm disorders can vary depending on the type of circadian rhythm disorder you have and how severe your condition is. Many of the symptoms of circadian rhythm disorders occur because you are not getting enough good-quality sleep when your body needs it. Undiagnosed and untreated circadian rhythm disorders may increase your risk of certain health conditions or cause workplace or road accidents.