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Carotid sinus hypersensitivity
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Carotid sinus hypersensitivity

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Contributors: Pamela L. Sloan MD, Ryan Hoefen MD, PhD
Other Resources UpToDate PubMed

Synopsis

Hypersensitivity of the carotid sinus such that manipulation causes a vagal response with bradycardia and vasodilation (asystole and drop in blood pressure), causing syncope. Abnormal response to carotid sinus massage is a strong indication of the condition. Other findings include hypotension, dizziness, presyncope, sinus bradycardia, headache, nausea, pallor, and diaphoresis. Associated with fast neck movements, shaving, constrictive collars, neck tumors, lymphadenopathy, or neck surgery. More common in elderly patients.

Treatment is case dependent and may include permanent pacemaker placement for more severe cases.

Codes

ICD10CM:
G90.01 – Carotid sinus syncope

SNOMEDCT:
9631000119102 – Carotid sinus hypersensitivity

Differential Diagnosis & Pitfalls

Best Tests

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Drug Reaction Data

Below is a list of drugs with literature evidence indicating an adverse association with this diagnosis. The list is continually updated through ongoing research and new medication approvals. Click on Citations to sort by number of citations or click on Medication to sort the medications alphabetically.

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References

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Last Updated: 03/28/2017
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Carotid sinus hypersensitivity
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Carotid sinus hypersensitivity : Dizziness, Syncope, Sinus bradycardia, BP decreased
Copyright © 2019 VisualDx®. All rights reserved.