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Prevalence and predictors of bridging of coronary arteries in a large Indonesian population, as detected by 64-slice computed tomography scan

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Abstract

Background

Multislice computed tomography (MSCT) can be used to detect myocardial bridging (MB) of coronary arteries. However, most published studies included small cohorts and did not collect data about predictors. We investigated prevalence and predictors of MB in an Indonesian population.

Methods

All patients who had MSCT at Cinere Hospital, Jakarta, Indonesia between 2006 and 2009 were included in a prospective registry. MB was defined when at least half of the coronary artery was imbedded within the myocardium with a normal epicardial course of the proximal and distal portion.

Results

Of the 934 patients (mean age 53 years, 37.8 % female), MB could be observed in 152 patients (16.3 %). Patients with MB were younger compared with those without MB. Coronary risk factors were not different between the two groups. Coronary calcifications and moderate to severe coronary stenoses were less prevalent in patients with MB, also after adjusting for differences in age. At the time of diagnosis, only a few patients with MB were treated with beta-blockers (35 %) or calcium channel blockers (13 %).

Conclusions

Prevalence of myocardial bridging as detected by MSCT is relatively high. Patients with MB were younger and had a lower prevalence of coronary sclerosis. MB could be the cause of their unexplained symptoms. Follow-up studies are necessary to assess the symptoms of these patients, their response to treatment and the incidence of (coronary) events. MSCT can be used to identify patients for potential new treatment strategies.

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Acknowledgments

We thank Lia Lorrya Tamangkoa and Dyah Ayu Mawarti, radiographers, for collecting data.

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Authors and Affiliations

  1. Department of Cardiology, Isala Klinieken, Groot Wezenland 20, 8011 JW, Zwolle, the Netherlands

    M. Mouden, J. P. Ottervanger, J. R. Timmer & H. Suryapranata

  2. Department of Cardiology, Cinere Hospital, Jl. Maribaya No 1, Puri Cinere, Depok, 16514, Jakarta, Indonesia

    J. Wirianta & Y. B. Juwana

  3. Department of Cardiology, University Medical Centre Nijmegen, Geert Grooteplein 10, 6525 GA, Nijmegen, the Netherlands

    M.-J. de Boer & H. Suryapranata

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  1. J. Wirianta
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  2. M. Mouden
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  3. J. P. Ottervanger
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  4. J. R. Timmer
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  5. Y. B. Juwana
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  6. M.-J. de Boer
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  7. H. Suryapranata
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Correspondence to J. P. Ottervanger.

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Wirianta, J., Mouden, M., Ottervanger, J.P. et al. Prevalence and predictors of bridging of coronary arteries in a large Indonesian population, as detected by 64-slice computed tomography scan. Neth Heart J 20, 396–401 (2012). https://doi.org/10.1007/s12471-012-0296-4

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  • DOI: https://doi.org/10.1007/s12471-012-0296-4

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