Imperial College London
Alternate

Dr P Boon Lim

Faculty of Medicine, National Heart & Lung Institute

Honorary Clinical Senior Lecturer
 
 
 
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Contact

 

+44 (0)20 3313 2115p.b.lim Website

 
 
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Location

 

Cardiology DepartmentBlock B Hammersmith HospitalHammersmith Campus

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Summary

 

Publications

Citation

BibTex format

@article{Ng:2016:10.1016/j.jacep.2016.08.004,
author = {Ng, FS and Rashid, M and Lim, E and Lim, PB},
doi = {10.1016/j.jacep.2016.08.004},
journal = {JACC: Clinical Electrophysiology},
pages = {186--188},
title = {Mapping signatures of ventricular ectopy of endocavitary origin},
url = {http://dx.doi.org/10.1016/j.jacep.2016.08.004},
volume = {3},
year = {2016}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - A 53-year-old man with very frequent ventricular ectopic activity (39.4% burden) and a structurally normal heart was admitted for percutaneous ablation. Electrocardiography showed a bigeminal unifocal ventricular ectopic pattern, with a right bundle branch block configuration and superior axis, indicating likely origin at the inferior left ventricle.During mapping at the inferior left ventricle, multiple sites with good morphological match to the ectopic beats during pace mapping, and with early local electrograms relative to the QRS complex, were identified. Despite this, the proximal electrograms at these sites consistently preceded the distal bipolar electrograms (Figure 1A) with the mapping catheter oriented perpendicularly to the inferior left ventricular wall (Figures 1B and 1C). Figure 1D shows the good pace matches obtained from these sites. The locations of these sites were roughly in a circle (Figure 1B), presumed to represent sites encircling the posteromedial papillary muscle, with the origin of the ectopic activity at the mid–papillary muscle, which would account for the consistent finding of proximal electrograms preceding distal electrograms at the surrounding sites.
AU  - Ng,FS
AU  - Rashid,M
AU  - Lim,E
AU  - Lim,PB
DO  - 10.1016/j.jacep.2016.08.004
EP  - 188
PY  - 2016///
SN  - 2405-5018
SP  - 186
TI  - Mapping signatures of ventricular ectopy of endocavitary origin
T2  - JACC: Clinical Electrophysiology
UR  - http://dx.doi.org/10.1016/j.jacep.2016.08.004
UR  - http://hdl.handle.net/10044/1/39025
VL  - 3
ER  -
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