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Postural orthostatic tachycardia syndrome (POTS) is a condition characterized by an abnormally large increase in heart rate upon sitting up or standing. [1] POTS is a disorder of the autonomic nervous system that can lead to a variety of symptoms, [10] including lightheadedness, brain fog, blurred vision, weakness, fatigue, headaches, heart palpitations, exercise intolerance, nausea ...
The number of categories of adverse childhood experiences (psychological, physical, or sexual abuse; violence against mother; or living with household members who used substances, mentally ill, suicidal, or incarcerated) showed a graded correlation with the presence of adult diseases including coronary artery (ischemic heart) disease.
Frequency. 2% of people over 65 (developed world) [ 1] Aortic stenosis ( AS or AoS) is the narrowing of the exit of the left ventricle of the heart (where the aorta begins), such that problems result. [ 1] It may occur at the aortic valve as well as above and below this level. [ 1] It typically gets worse over time. [ 1]
Atrioventricular septal defect (AVSD) or atrioventricular canal defect (AVCD), also known as " common atrioventricular canal " or " endocardial cushion defect " (ECD), is characterized by a deficiency of the atrioventricular septum of the heart that creates connections between all four of its chambers. It is a very specific combination of 3 ...
A check valve, non-return valve, reflux valve, retention valve, foot valve, or one-way valve is a valve that normally allows fluid (liquid or gas) to flow through it in only one direction. [1] Check valves are two-port valves, meaning they have two openings in the body, one for fluid to enter and the other for fluid to leave. There are various ...
Specialty. Cardiology, Emergency Medicine. Left bundle branch block ( LBBB) is a conduction abnormality in the heart that can be seen on an electrocardiogram (ECG). [ 1] In this condition, activation of the left ventricle of the heart is delayed, which causes the left ventricle to contract later than the right ventricle .
Cardiovascular disease (CVD) is any disease involving the heart or blood vessels. [3] CVDs constitute a class of diseases that includes: coronary artery diseases (e.g. angina, heart attack), heart failure, hypertensive heart disease, rheumatic heart disease, cardiomyopathy, arrhythmia, congenital heart disease, valvular heart disease, carditis, aortic aneurysms, peripheral artery disease ...
Quadricuspid aortic valves are very rare cardiac valvular anomalies with a prevalence of 0.013% to 0.043% of cardiac cases [4] and a prevalence of 1 in 6000 patients that undertake aortic valve surgery. [5] There is a slight male predominance in all of the cases, and the mean age is 50.7. [5]