Format

Send to

Choose Destination
J Cardiovasc Electrophysiol. 2019 Jan 4. doi: 10.1111/jce.13840. [Epub ahead of print]

Cardiac resynchronization therapy reverses severe dyspnea associated with acceleration-dependent left bundle branch block in a patient with structurally normal heart.

Author information

1
St Vincent Medical Group, St Vincent Hospital, Indianapolis, Indiana.

Abstract

A 55-year-old woman presented with severe dyspnea during acceleration-dependent left bundle branch block (LBBB). Metoprolol initially ameliorated symptoms by preventing the heart rate at which LBBB occurred. Over time LBBB presented at slower heart rates and the patient developed recurrent dyspnea during an activity that correlated with the development of LBBB on event monitors and exercise stress testing. A biventricular pacemaker was implanted, and the patient's symptoms remain resolved after a follow-up of over 4 years. More research is needed to define the use of cardiac resynchronization therapy in patients with normal heart function.

KEYWORDS:

biventricular pacemaker; cardiac resynchronization therapy; dyspnea; normal ejection fraction

PMID:
30614115
DOI:
10.1111/jce.13840

Supplemental Content

Full text links

Icon for Wiley
Loading ...
Support Center