Search results
Results from the WOW.Com Content Network
Critical closing pressure is the internal pressure at which a blood vessel collapses and closes completely. [1] When blood pressure falls below critical closing pressure, the vessel is unable to overcome external pressure (either from environment or vascular smooth muscle) and flow stops.
In the arterial system, bubbles (arterial gas embolism) are far more dangerous because they block circulation and cause infarction (tissue death, due to local loss of blood flow). In the brain, infarction results in stroke , and in the spinal cord it may result in paralysis .
High blood pressure. High cholesterol. Diabetes. Overweight or obesity. Not exercising regularly. Smoking or using tobacco. Consuming large amounts of alcohol. A history of preeclampsia (high ...
Infarction occurs as a result of prolonged ischemia, which is the insufficient supply of oxygen and nutrition to an area of tissue due to a disruption in blood supply. [5] The blood vessel supplying the affected area of tissue may be blocked due to an obstruction in the vessel (e.g., an arterial embolus, thrombus, or atherosclerotic plaque ...
CAD can be contracted over time. Risk factors include a family history of CAD, smoking, high blood pressure, diabetes, obesity, inactive lifestyle, mental stress and high cholesterol. [26] [27] Angina can also occur due to spasm of the coronary arteries, even in individuals without atherosclerosis. [28]
The disease can cause the heart tissue to be deprived of blood and die due to decreased blood flow, and blockages due to blood clots or spasms of the blood vessel. [2] This blood flow disruption can cause permanent damage to the muscle if the deprivation is prolonged. Coronary artery ectasia also increases the chance of developing large weak ...
Children are less likely to survive AR-15 wounds. The leading cause of death in children between the ages of 1 and 19 in the U.S. is gun violence, according to a recent New England Journal of ...
This bubble has the potential to block blood flow to the rest of the body, and thus limit the patient's stamina. In other cases, a similarly developed pseudoaneurysm ("false aneurysm") may burst, sometimes resulting in the death of the patient. Also, blood clots may form on the inside of ventricular aneurysms, and form embolisms. If such a clot ...