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The carotid sinus baroreceptor can be oversensitive to manual stimulation from the pressure applied at the carotid sinus at the carotid bifurcation. It is a condition known as 'carotid sinus hypersensitivity' (CSH), 'carotid sinus syndrome' or 'carotid sinus syncope', in which manual stimulation causes large changes in heart rate and blood ...
Situational syncope is often triggered by urination, swallowing, or coughing. [2] Carotid sinus syncope is due to pressure on the carotid sinus in the neck. [2] The underlying mechanism involves the nervous system slowing the heart rate and dilating blood vessels, resulting in low blood pressure and thus not enough blood flow to the brain. [2]
Neurally mediated syncope may also occur when an area in the neck known as the carotid sinus is pressed. [1] A normal response to carotid sinus massage is reduction in blood pressure and slowing of the heart rate. Especially in people with hypersensitive carotid sinus syndrome this response can cause syncope or presyncope. [9]
Baroreflex activation therapy is an approach to treating high blood pressure and the symptoms of heart failure.It uses an implanted device to electrically stimulate baroreceptors in the carotid sinus region.
An ectopic atrial rhythm occurring near the sinus node may also mimic Inappropriate sinus tachycardia. Syncope or pre-syncope may occur in IST patients and be the dominant symptom, with associated prodromal symptoms such as diaphoresis and visual blurring, leading to the diagnosis of vasovagal syncope and the diagnosis of IST being overlooked. [2]
The Mayo Clinic diet, a program that adheres to this notion, was developed by medical professionals based on scientific research, so you can trust that this program is based on science, and not ...
The ability of baroreflex activation therapy to reduce sympathetic nerve activity suggests a potential in the treatment of chronic heart failure, because in this condition there is often intense sympathetic activation and patients with such sympathetic activation show a markedly increased risk of fatal arrhythmias and death. [citation needed]
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