The most common cause of renal artery stenosis is atherosclerosis, the same condition that causes narrowing of the arteries in coronary heart disease and stroke, and the risk factors are the same as well. Cholesterol plaques build up along the walls of the renal artery and gradually cause narrowing.
Oxytocin is a commonly used uterotonic that can cause significant and even fatal hypotension, particularly when given as a bolus. The resulting hypotension can be produced by a decrease in systemic vascular resistance or cardiac output through a decrease in venous return.
Oxytocin causes the cells around the milk ducts to contract and eject milk from the milk glands and down the milk ducts. This passing of the milk down the ducts is called the âlet-downâ (milk ejection) reflex. Let-down is experienced in numerous ways including: your infant begins to actively suck and swallow;