Transient left bundle branch block in a young patient with a myocardial bridge: a case report
https://doi.org/10.15829/1728-8800-2024-4271
EDN: ZVICGN
Abstract
Introduction. Transient complete left bundle branch block (LBBB) may occur against the background of various conditions, including coronary artery disease, cardiomyopathy of various origins, valvular diseases, heart rate abnormalities, acute pulmonary embolism, anesthesia, intrathoracic pressure changes, chest trauma, tumors, etc. Newly diagnosed complete LBBB in combination with the corresponding clinical manifestations is regarded as an acute coronary syndrome and requires immediate hospitalization.
Results. A case of asymptomatic transient complete LBBB in a 36-yearold man without hemodynamically significant coronary atherosclerosis, with a myocardial bridge in the middle segment of left anterior descending artery with stenosis of 30%.
Conclusion. Taking into account the paraclinical data, we studied the probability of transient complete LBBB against the background of left anterior descending artery myocardial bridging, as well as the probability of tachycardia-induced transient LBBB.
Keywords
transient complete left bundle branch block,
case report,
myocardial bridge,
cardiac memory,
Chatterjee phenomenon
Supporting agencies: The work was supported by the grant of the Russian Science Foundation № 22-15-00507, https://rscf.ru/ project/22-15-00507
About the Authors
E. A. Novokhatskaya
National Medical Research Center for Therapy and Preventive Medicine
Russian Federation
Russian Federation
Moscow
A. S. Limonova
National Medical Research Center for Therapy and Preventive Medicine
Russian Federation
Russian Federation
Moscow
A. I. Ershova
National Medical Research Center for Therapy and Preventive Medicine
Russian Federation
Russian Federation
Moscow
O. M. Drapkina
National Medical Research Center for Therapy and Preventive Medicine
Russian Federation
Russian Federation
Moscow
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Supplementary files
- A case of a young patient with asymptomatic transient complete left bundle branch block, which was the cause of repeated emergency hospitalizations, is described. No significant coronary atherosclerosis was detected.
- Determination of the etiology of asymptomatic complete left bundle branch block in young patients without significant coronary atherosclerosis is of great clinical importance, since it optimizes the management of such patients. From a socio-economic point of view, this helps to reduce the frequency of repeated unjustified hospitalizations and the volume of additional examinations.
Review
For citations:
Novokhatskaya E.A., Limonova A.S., Ershova A.I., Drapkina O.M. Transient left bundle branch block in a young patient with a myocardial bridge: a case report. Cardiovascular Therapy and Prevention. 2024;23(12):4271. (In Russ.) https://doi.org/10.15829/1728-8800-2024-4271. EDN: ZVICGN
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