1 After medical school, you would need to complete a residency in pediatrics, which is three years. 2  Doctorate to practice medicine (MD, DO) plus current license to practice medicine. 3  An MD or DO, a medical degree. 4  Pediatricians are doctors. You would need a medical degree to start and then go on to specialize with further training in pediatrics. 2  Pediatricians need 4 years of undergraduate school followed by four more years of medical school, followed by 3 years of internship and residency.
The underlying cause of an aneurysm is a weak spot in the artery wall. Over time, repetitive pounding by the blood as it's forced through the veins with each heartbeat causes the weak spot to bulge. The higher the person's blood pressure, the more likely an aneurysm is to form.
Aortic aneurysms may be caused by: 1  Atherosclerosis, or hardening of the arteries, which weakens arterial walls. 2  Hypertension (high blood pressure). 3  Local injury to the artery. 4  Congenital abnormality. 5  Aging. 6  Syphilis used to be a common cause of thoracic aneurysms, but it is no longer as common.