The most common cause of death in acromegaly is cardiovascular disease, with a mortality rate of up to 50%. This is largely due to the increase in growth hormone and insulin-like growth factor-1 (IGF-1) levels associated with this disorder, which can lead to an increased risk of hypertension, dyslipidemia, and atherosclerosis. Other potential contributors to increased mortality include respiratory problems, sleep apnea, and an increase in the risk of developing certain types of cancer.
The increased risk of cardiovascular disease is largely attributed to the effects of acromegaly on the body’s metabolism. Growth hormone increases the body’s production of insulin, which can lead to insulin resistance and the development of type 2 diabetes. This can result in an increase in blood glucose levels, which can damage arteries, leading to hypertension and an increased risk of stroke and heart attack. Additionally, growth hormone can cause an increase in blood cholesterol levels, which can also increase the risk of developing cardiovascular disease.
In addition to these risks, acromegaly can also lead to an increased risk of developing certain types of cancer, such as colorectal, pancreatic, and prostate cancer. This may be due to the increased levels of growth hormone and IGF-1, which can alter cell growth and division.
Finally, acromegaly can also lead to respiratory problems, such as sleep apnea, due to the enlarged tongue and soft palate associated with the disorder. This can interfere with normal breathing and increase the risk of developing respiratory infections.
In conclusion, cardiovascular disease is the most common cause of death in acromegaly, due to the increased risk of hypertension, dyslipidemia, and atherosclerosis caused by growth hormone and IGF-1 levels. Other potential contributors to increased mortality include respiratory problems, sleep apnea, and an increase in the risk of developing certain types of cancer.