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The LAD gives off two types of branches: septals and diagonals. Septals originate from the LAD at 90 degrees to the surface of the heart, perforating and supplying the anterior 2/3 of the interventricular septum. Diagonals run along the surface of the heart and supply the lateral wall of the left ventricle and the anterolateral papillary muscle.
Wellens' syndrome is an electrocardiographic manifestation of critical proximal left anterior descending (LAD) coronary artery stenosis in people with unstable angina. Originally thought of as two separate types, A and B, it is now considered an evolving wave form, initially of biphasic T wave inversions and later becoming symmetrical, often ...
It most often begins in people over 65 years of age, although up to 10% of cases are early-onset impacting those in their 30s to mid-60s. [27] [4] It affects about 6% of people 65 years and older, [16] and women more often than men. [28] The disease is named after German psychiatrist and pathologist Alois Alzheimer, who first described it in ...
Rates are slightly higher in women than men at ages 65 and greater. [276] The disease trajectory is varied and the median time from diagnosis to death depends strongly on age at diagnosis, from 6.7 years for people diagnosed aged 60–69 to 1.9 years for people diagnosed at 90 or older.
About 0.4% of those over the age of 65 are affected with DLB, [9] and between 1 and 4 per 1,000 people develop the condition each year. [218] [219] Symptoms usually appear between the ages of 50 and 80 [9] (median 76 [3]), and it is not uncommon for it to be diagnosed before the age of 65. [151]
Symptoms include overactive bladder, decreased stream of urine, hesitancy urinating, and incomplete emptying of the bladder. [19] [20] By age 40, 10% of men will have signs of BPH and by age 60, this percentage increases by 5 fold. Men over the age of 80 have over a 90% chance of developing BPH and almost 80% of men will develop BPH in their ...
Atherosclerosis [a] is a pattern of the disease arteriosclerosis, [8] characterized by development of abnormalities called lesions in walls of arteries.This is a chronic inflammatory disease involving many different cell types and is driven by elevated levels of cholesterol in the blood. [9]
Overall, heart failure affects about 2% of adults, [22] and more than 10% of those over the age of 70. [6] Rates are predicted to increase. [22] The risk of death in the first year after diagnosis is about 35%, while the risk of death in the second year is less than 10% in those still alive. [10] The risk of death is comparable to that of some ...