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Aortic regurgitation (AR), also known as aortic insufficiency (AI), is the leaking of the aortic valve of the heart that causes blood to flow in the reverse direction during ventricular diastole, from the aorta into the left ventricle. As a consequence, the cardiac muscle is forced to work harder than normal. [4]
Atrial fibrillation is associated with an increased risk of heart failure, dementia, and stroke. [3] [12] It is a type of supraventricular tachycardia. [14] Atrial fibrillation frequently results from bursts of tachycardia that originate in muscle bundles extending from the atrium to the pulmonary veins. [15]
Familial atrial fibrillation is an autosomal dominant heart condition that causes disruptions in the heart's normal rhythm. [ 1 ] [ 2 ] This condition is characterized by uncoordinated electrical activity in the heart's upper chambers (the atria ), which causes the heartbeat to become fast and irregular.
The CHADS 2 score and its updated version, the CHA 2 DS 2-VASc score, are clinical prediction rules for estimating the risk of stroke in people with non-rheumatic atrial fibrillation (AF), a common and serious heart arrhythmia associated with thromboembolic stroke.
Generally, diseases outlined within the ICD-10 codes G40-G47 within Chapter VI: Diseases of the nervous system should be included in this category. Subcategories This category has the following 4 subcategories, out of 4 total.
About 2.3 per 1000 people have paroxysmal supraventricular tachycardia. [5] Problems typically begin in those 12 to 45 years old. [3] [5] Women are more often affected than men. [3] Outcomes are generally good in those who otherwise have a normal heart. [3] An ultrasound of the heart may be done to rule out underlying heart problems. [1]
Lown–Ganong–Levine syndrome (LGL) is a pre-excitation syndrome of the heart. Those with LGL syndrome have episodes of abnormal heart racing with a short PR interval and normal QRS complexes seen on their electrocardiogram when in a normal sinus rhythm .
The worsened heart function then persists at a stable state until the heart rate is returned to normal. [1] With normal heart rates, these animals begin to demonstrate improving heart function at 1–2 days, and even complete recovery of ejection fraction at 1 month. [1]