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Pre-excitation syndrome is a heart condition in which part of the cardiac ventricles are activated too early. [1] Pre-excitation is caused by an abnormal electrical connection or accessory pathway between or within the cardiac chambers. Pre-excitation may not cause any symptoms but may lead to palpitations caused by abnormal heart rhythms.
Cardiotoxicity is the occurrence of heart dysfunction as electric or muscle damage, resulting in heart toxicity. [1] This can cause heart failure, arrhythmia, myocarditis, and cardiomyopathy in patients. [2] Some effects are reversible, while in others, permanent damage requiring further treatment may arise.
Heart block should not be confused with other conditions, which may or may not be co-occurring, relating to the heart and/or other nearby organs that are or can be serious, including angina (heart-related chest pain), heart attack (myocardial infarction), any type of heart failure, cardiogenic shock or other types of shock, different types of ...
Cardiac physiology or heart function is the study of healthy, unimpaired function of the heart: involving blood flow; myocardium structure; the electrical conduction system of the heart; the cardiac cycle and cardiac output and how these interact and depend on one another.
Congenital heart disease refers to heart problems that you’re born with, like holes in the heart, malformed valves, and others. Some examples of congenital heart disease include: Pulmonary stenosis.
A syndrome is a set of medical signs and symptoms that are correlated with each other. A syndrome can affect one or more of body systems. Different syndromes affect different groups of organs. This is a list of syndromes that may affect the heart. Syndromes affecting primarily the heart are written in bold letters. [1] [2]
Treatment depends on the type of heart rhythm shown on an electrocardiogram test, and the stability of the patient's blood circulation. If a patient has low blood pressure, difficulty breathing, chest pain, shock, or confusion, they are considered unstable and must have an electrocardiogram result checked to determine if the heart is beating ...
Afterdepolarization is commonly a consequence of myocardial infarction, cardiac hypertrophy, or heart failure. [1] It may also result from congenital mutations associated with calcium channels and sequestration. [2]