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Brockenbrough's sign
Etiology:
- Brockenbrough's sign is observed in association with hypertrophic cardiomyopathy.
Clinical manifestations:
- on the beat following a premature ventricular contraction (PVC), the systolic ejection murmur increases in intensity where as the arterial pulse (carotid) volume decreases
- this occurs secondary to increased contractility & decreased afterload
Related
hypertrophic cardiomyopathy (HCM), including idiopathic hypertrophic subaortic stenosis (IHSS)
General
sign/symptom
References
Mayo Internal Medicine Board Review, 1998-99, Prakash UBS (ed)
Lippincott-Raven, Philadelphia, 1998, pg 106