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Milrinone, sold under the brand name Primacor, is a pulmonary vasodilator [2] used in patients who have heart failure. It is a phosphodiesterase 3 inhibitor that works to increase the heart's contractility and decrease pulmonary vascular resistance.
Cerebral hyperaemia is a fundamental central nervous system mechanism of homeostasis that increases blood supply to neural tissue when necessary. [3] This mechanism controls oxygen and nutrient levels using vasodilation and vasoconstriction in a multidimensional process involving the many cells of the neurovascular unit, along with multiple ...
It is important to note that certain medications, such as Milrinone and Digoxin, possess overlapping classifications due to their ability to engage multiple mechanisms of action. Their inotropic properties make cardiactonic agents critical in addressing inadequate perfusion , and acute heart failure conditions including cardiogenic shock , as ...
The two branches of the autonomic nervous system work together to increase or slow the heart rate. The vagus nerve acts on the sinoatrial node, slowing its conduction and modulating vagal tone, via the neurotransmitter acetylcholine and downstream changes to ionic currents and calcium of heart cells. [ 4 ]
Vasodilation plays a major role in immune system function. Wider blood vessels allow more blood containing immune cells and proteins to reach the infection site. Vasodilation occurs as part of the process of inflammation, which is caused by several factors including presence of a pathogen, injury to tissues or blood vessels, and immune ...
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Midodrine is a prodrug which forms the active metabolite, desglymidodrine, which is an α 1-adrenergic receptor agonist and exerts its actions via activation of α 1-adrenergic receptors of the arteriolar and venous vasculature, producing an increase in vascular tone and elevation of blood pressure.
It is also believed that angiotensin directly affects cardiac remodeling, and blocking its activity can thereby slow the deterioration of cardiac function. A number of studies have been done to investigate whether ACEi plus ARB is better than an ACEi treatment alone in reducing death, disability or hospital admission in CHF with systolic ...