carotid sinus

[kə′räd·əd ′sī·nəs]

(anatomy)

An enlargement at the bifurcation of each carotid artery that is supplied with sensory nerve endings and plays a role in reflex control of blood pressure.

The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Carotid Sinus

(bulbus caroticus, sinus caroticus, the dilated area of the common carotid artery before bifurcation into its external and internal branches.

The carotid sinus is an important reflexogenic zone that plays a part in maintaining the constancy of arterial pressure, heart action, and blood gases content; it is the site of baroreceptors, which react to changes in blood pressure, and chemoreceptors, which react to changes in the chemical composition of the blood and in oxygen tension. The carotid sinus is innervated by the sensory branch of the glossopharyngeal nerve (sinus nerve, Hering’s nerve). Excitation of the nerve endings in the carotid sinus is the first link in the chain of the carotid reflexes.

I. N. D’IAKONOVA

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References in periodicals archive

I was remembering that no matter how well I tried to teach those amazing nurses how to massage his carotid sinus, his heart responded only to my touch.

THE SECRET OF HEALING TOUCH: THE CASE OF MR. DANSKA WOULD BE JUST A ONE-NIGHT STAND, BUT IT WOULD GET ME THINKING ABOUT HOW MEDICINE HAS SOMETHING UNEXPLAINABLE ABOUT IT, WHICH IS ITS HEART

Mass lesions of the neck involving the carotid sinus or airway are a potentially modifiable cause of sinus bradycardia and sleep apnea.

Symptomatic Long Pauses and Bradycardia due to Massive Multinodular Goiter

Carotid body tumor presenting with carotid sinus syndrome.

A Rare Case of Carotid Body Tumor Presenting with Internal Carotid Artery Blood Supply and Carotid Sinus Syndrome

The initial strategy should be to terminate an SVT with a vagal manoeuvre, such as carotid sinus massage, after excluding any carotid artery bruit.

An approach to the patient with a suspected tachycardia in the emergency department

* Vagal manoeuvres like Carotid sinus massage, Valsalva maneuver or phaiyngeal stimulation can abort the re-entrant variety of PSVT.

Perioperative cardiac arrhythmias: an approach

This elevates the excitability of the nerve endings which increases the activity of the carotid sinus nerve of the carotid body for eliciting the chemoreflex.

Pathogenic roles of the carotid body inflammation in sleep apnea

Other precipitating factors include foreign body ingestion (iatrogenic secondary to instrumentation and laryngoscopy), carotid sinus massage (3) and even acupuncture (6).

An unusual case of dysphagia following routine electrical DC cardioversion

The pressure on carotid sinus baroreceptors, which are located just cephalad to the bifurcation of the common carotid artery, results in bradycardia, hypotension, or combination of both.

Doctor, why do I faint when I turn my head to the left? is it epilepsy or syncope?/ Doktor, neden sola donunce bayiliyorum? epilepsi mi senkop mu?

Bradycardia, related to manipulation of the carotid sinus baroreceptors located in the carotid bulb, may occur during the procedure just after the stent implantation and/or balloon angioplasty (Martinez-Fernandez et al., 2008).

Carotid angioplasty and stenting in carotid artery stenosis: neuroscience nursing implications

(9) Horner syndrome may result from cervical sympathetic chain invasion, and syncope can occur after carotid sinus compression.

Update in carotid chemodectomas

Our patient did not respond to carotid sinus massage and asthma precluded the use of adenosine and beta blockers.

Remifentanil for supraventricular tachycardia

The system consists of a battery-powered implantable generator inserted under the skin near the collarbone and two carotid sinus leads, which run from the generator to the left and right carotid sinuses in the neck.

New device to treat hypertension