Thiamine Overdose. Overdosing on thiamine, or vitamin B-1, is rare but can cause severe symptoms. Mild symptoms of an overdose include weakness and a headache, the American Pregnancy Association reports. In some cases, high vitamin B-1 levels can cause a rapid, irregular heart beat and low blood pressure.
Ascending Aorta - initial part of the aorta that begins from the aortic valve and extends from the left ventricle of the heart to the aortic arch. Coronary Arteries - arteries branching from the ascending aorta to supply oxygenated blood to the heart wall.
The aorta is the large artery that leaves the heart and provides oxygen-rich blood throughout the body. Many diseases and conditions can cause the aorta to dilate (widen) or can cause aortic dissection (tear) increasing your risk for future life-threatening events. These conditions that can lead to aortic aneurysm and aortic dissection include: