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Clinical significance of exercise-induced bundle branch block.

Publication ,  Journal Article
Williams, MA; Esterbrooks, DJ; Nair, CK; Sailors, MM; Sketch, MH
Published in: Am J Cardiol
February 1, 1988

To evaluate the diagnostic significance and long-term follow-up data of patients with exercise-induced bundle branch block (BBB), 10,176 consecutive patients' exercise test data were reviewed and 50 patients found to have exercise-induced BBB. Clinical, exercise test and arteriographic data were analyzed along with follow-up data during a mean of 43 months. Of the 50 patients, 37 had exercise-induced left BBB and 13 had exercise-induced right BBB. Significant coronary artery disease (CAD) was diagnosed in 26 of 37 patients (70%) with exercise-induced left BBB and in all 13 patients (100%) with exercise-induced right BBB. In patients who underwent coronary arteriography, data demonstrated a high prevalence of proximal left anterior descending disease (17 of 20, 85%). Follow-up data revealed that exercise-induced BBB was associated with a 36% (18 of 50) incidence of coronary events, including 16 patients who underwent coronary artery bypass grafting and 2 hospitalized for congestive heart failure. Results indicated that exercise-induced BBB was infrequent and occurred primarily in association with CAD, had a high prevalence of proximal left anterior CAD, infrequently had similar onset and offset heart rates, was reproducible and associated with a greater incidence of coronary artery bypass grafting than had been previously reported, although the incidence of cardiac events was similar to those investigations.

Duke Scholars

Published In

Am J Cardiol

DOI

ISSN

0002-9149

Publication Date

February 1, 1988

Volume

61

Issue

4

Start / End Page

346 / 348

Location

United States

Related Subject Headings

  • Physical Exertion
  • Middle Aged
  • Male
  • Humans
  • Heart Rate
  • Follow-Up Studies
  • Female
  • Electrocardiography
  • Coronary Disease
  • Coronary Angiography
 

Citation

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ICMJE
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Williams, M. A., Esterbrooks, D. J., Nair, C. K., Sailors, M. M., & Sketch, M. H. (1988). Clinical significance of exercise-induced bundle branch block. Am J Cardiol, 61(4), 346–348. https://doi.org/10.1016/0002-9149(88)90942-3
Williams, M. A., D. J. Esterbrooks, C. K. Nair, M. M. Sailors, and M. H. Sketch. “Clinical significance of exercise-induced bundle branch block.Am J Cardiol 61, no. 4 (February 1, 1988): 346–48. https://doi.org/10.1016/0002-9149(88)90942-3.
Williams MA, Esterbrooks DJ, Nair CK, Sailors MM, Sketch MH. Clinical significance of exercise-induced bundle branch block. Am J Cardiol. 1988 Feb 1;61(4):346–8.
Williams, M. A., et al. “Clinical significance of exercise-induced bundle branch block.Am J Cardiol, vol. 61, no. 4, Feb. 1988, pp. 346–48. Pubmed, doi:10.1016/0002-9149(88)90942-3.
Williams MA, Esterbrooks DJ, Nair CK, Sailors MM, Sketch MH. Clinical significance of exercise-induced bundle branch block. Am J Cardiol. 1988 Feb 1;61(4):346–348.
Journal cover image

Published In

Am J Cardiol

DOI

ISSN

0002-9149

Publication Date

February 1, 1988

Volume

61

Issue

4

Start / End Page

346 / 348

Location

United States

Related Subject Headings

  • Physical Exertion
  • Middle Aged
  • Male
  • Humans
  • Heart Rate
  • Follow-Up Studies
  • Female
  • Electrocardiography
  • Coronary Disease
  • Coronary Angiography