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Reflex bradycardia is a bradycardia (decrease in heart rate) in response to the baroreceptor reflex, one of the body's homeostatic mechanisms for preventing abnormal increases in blood pressure. In the presence of high mean arterial pressure , the baroreceptor reflex produces a reflex bradycardia as a method of decreasing blood pressure by ...
Certain vasopressors (ephedrine, norepinephrine). Norepinephrine (Levophed) is the most common first-line vasopressor for people who don't respond well to other hypotension treatments such as fluid resuscitation. Atropine is administered for bradycardia. It acts on the vagus nerve so it's not effective in heart transplant patients as the vagus ...
Medications such as clonidine and dexmedetomidine target pre-synaptic auto receptors, therefore leading to an overall decrease in norepinephrine which clinically can cause effects such as sedation, analgesia, lowering of blood pressure and bradycardia. There is also low quality evidence that they can reduce shivering post operatively.
Norepinephrine, also known as noradrenaline and sold under the brand name Levophed among others, is a medication used to treat people with very low blood pressure. [2] It is the typical medication used in sepsis if low blood pressure does not improve following intravenous fluids . [ 3 ]
Bradycardia may be associated with symptoms of fatigue, dyspnea, dizziness, confusion, and frank syncope due to reduced forward blood flow to the brain, lungs, and skeletal muscle. [6] The types of symptoms often depend on the etiology of the slow heart rate, classified by the anatomic location of a dysfunction within the cardiac conduction ...
Most people know that GLP-1 receptor agonist medications like Ozempic and Wegovy can cause relatively minor side effects like nausea and diarrhea. But new research confirms that more serious ...
Heart attacks and strokes occur when plaque forms in arteries, which can slow down blood flow in the body and cause small blood clots to form. Blocking or disrupting blood flow to the heart is ...
The baroreceptors in the arteries detect the hypotension resulting from large amounts of blood being redirected to distant tissues, and cause the release of epinephrine and norepinephrine. Norepinephrine causes predominately vasoconstriction with a mild increase in heart rate, whereas epinephrine predominately causes an increase in heart rate ...