Echocardiographic Brockenbrough-Braunwald-Morrow sign.


The Brockenbrough-Braunwald-Morrow sign is the paradoxical decrease in pulse pressure during the post-extrasystole beat seen in patients with hypertrophic obstructive cardiomyopathy. We present a case of intermittent left ventricular outflow tract obstruction and secondary mitral regurgitation resulting from post-extrasystolic potentiation following a premature atrial beat, demonstrating using echocardiography the mechanism behind this sign.

DOI: 10.1093/ejechocard/jeq155

Cite this paper

@article{Adawi2011EchocardiographicBS, title={Echocardiographic Brockenbrough-Braunwald-Morrow sign.}, author={Salim Adawi and Ihab Asmer and Amnon Merdler and Avinoam Shiran}, journal={European journal of echocardiography : the journal of the Working Group on Echocardiography of the European Society of Cardiology}, year={2011}, volume={12 3}, pages={E12} }