Electrocardiographic abnormalities and risk of developing cardiac events in extracardiac sarcoidosis

Satomi Nagao, Hiroshi Watanabe, Yoshihiro Sobue, Makoto Kodama, Junichi Tanaka, Naohito Tanabe, Eiichi Suzuki, Ichiei Narita, Eiichi Watanabe, Yoshifusa Aizawa, Tohru Minamino

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Background: Cardiac involvement is a leading cause of death from sarcoidosis. Because the efficacy of corticoste-roid treatment is limited in patients with cardiac manifestation, early diagnosis is important. However, cardiac involvement is difficult to identify at early stages and is often underdiagnosed. Therefore, this study aimed to identify electrocardiographic risk factors for cardiac events in patients with extracardiac sarcoidosis. Methods: This prospective observational cohort study included 227 patients with extracardiac sarcoidosis who did not have any cardiac manifestation (age, 49 ± 17 years; women, 63%). We studied the association of electro-cardiographic abnormalities with developing cardiac manifestations. Results: Duringa follow-up of 6.3± 3.7 years, 11 patients developed cardiac events, including advanced atrioven-tricular block (4 patients), ventricular tachycardia (4 patients), and systolic dysfunction (3 patients). All patients had electrocardiographic abnormalities prior to the development of cardiac events. In multivariate analyses, the baseline heart rate and PR interval were associated with increased risk of developing cardiac events. The QRS duration and corrected QT interval were not associated with cardiac manifestations. The multivariate analyses also revealed that baseline conduction disorder, ST segment/T wave abnormalities, and fragmented QRS complexes were associated with cardiac events. Conclusions: Electrocardiographic abnormalities occurred prior to cardiac events in extracardiac sarcoidosis. Patients with electrocardiographic abnormalities may require further evaluation for cardiac involvement and careful follow-up.

Original languageEnglish
Pages (from-to)1-5
Number of pages5
JournalInternational Journal of Cardiology
Volume189
Issue number1
DOIs
Publication statusPublished - 15-06-2015

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Sarcoidosis
Multivariate Analysis
Ventricular Tachycardia
Observational Studies
Early Diagnosis
Cause of Death
Cohort Studies
Heart Rate

All Science Journal Classification (ASJC) codes

  • Cardiology and Cardiovascular Medicine

Cite this

Nagao, Satomi ; Watanabe, Hiroshi ; Sobue, Yoshihiro ; Kodama, Makoto ; Tanaka, Junichi ; Tanabe, Naohito ; Suzuki, Eiichi ; Narita, Ichiei ; Watanabe, Eiichi ; Aizawa, Yoshifusa ; Minamino, Tohru. / Electrocardiographic abnormalities and risk of developing cardiac events in extracardiac sarcoidosis. In: International Journal of Cardiology. 2015 ; Vol. 189, No. 1. pp. 1-5.
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abstract = "Background: Cardiac involvement is a leading cause of death from sarcoidosis. Because the efficacy of corticoste-roid treatment is limited in patients with cardiac manifestation, early diagnosis is important. However, cardiac involvement is difficult to identify at early stages and is often underdiagnosed. Therefore, this study aimed to identify electrocardiographic risk factors for cardiac events in patients with extracardiac sarcoidosis. Methods: This prospective observational cohort study included 227 patients with extracardiac sarcoidosis who did not have any cardiac manifestation (age, 49 ± 17 years; women, 63{\%}). We studied the association of electro-cardiographic abnormalities with developing cardiac manifestations. Results: Duringa follow-up of 6.3± 3.7 years, 11 patients developed cardiac events, including advanced atrioven-tricular block (4 patients), ventricular tachycardia (4 patients), and systolic dysfunction (3 patients). All patients had electrocardiographic abnormalities prior to the development of cardiac events. In multivariate analyses, the baseline heart rate and PR interval were associated with increased risk of developing cardiac events. The QRS duration and corrected QT interval were not associated with cardiac manifestations. The multivariate analyses also revealed that baseline conduction disorder, ST segment/T wave abnormalities, and fragmented QRS complexes were associated with cardiac events. Conclusions: Electrocardiographic abnormalities occurred prior to cardiac events in extracardiac sarcoidosis. Patients with electrocardiographic abnormalities may require further evaluation for cardiac involvement and careful follow-up.",
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Nagao, S, Watanabe, H, Sobue, Y, Kodama, M, Tanaka, J, Tanabe, N, Suzuki, E, Narita, I, Watanabe, E, Aizawa, Y & Minamino, T 2015, 'Electrocardiographic abnormalities and risk of developing cardiac events in extracardiac sarcoidosis', International Journal of Cardiology, vol. 189, no. 1, pp. 1-5. https://doi.org/10.1016/j.ijcard.2015.03.175

Electrocardiographic abnormalities and risk of developing cardiac events in extracardiac sarcoidosis. / Nagao, Satomi; Watanabe, Hiroshi; Sobue, Yoshihiro; Kodama, Makoto; Tanaka, Junichi; Tanabe, Naohito; Suzuki, Eiichi; Narita, Ichiei; Watanabe, Eiichi; Aizawa, Yoshifusa; Minamino, Tohru.

In: International Journal of Cardiology, Vol. 189, No. 1, 15.06.2015, p. 1-5.

Research output: Contribution to journalArticle

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T1 - Electrocardiographic abnormalities and risk of developing cardiac events in extracardiac sarcoidosis

AU - Nagao, Satomi

AU - Watanabe, Hiroshi

AU - Sobue, Yoshihiro

AU - Kodama, Makoto

AU - Tanaka, Junichi

AU - Tanabe, Naohito

AU - Suzuki, Eiichi

AU - Narita, Ichiei

AU - Watanabe, Eiichi

AU - Aizawa, Yoshifusa

AU - Minamino, Tohru

PY - 2015/6/15

Y1 - 2015/6/15

N2 - Background: Cardiac involvement is a leading cause of death from sarcoidosis. Because the efficacy of corticoste-roid treatment is limited in patients with cardiac manifestation, early diagnosis is important. However, cardiac involvement is difficult to identify at early stages and is often underdiagnosed. Therefore, this study aimed to identify electrocardiographic risk factors for cardiac events in patients with extracardiac sarcoidosis. Methods: This prospective observational cohort study included 227 patients with extracardiac sarcoidosis who did not have any cardiac manifestation (age, 49 ± 17 years; women, 63%). We studied the association of electro-cardiographic abnormalities with developing cardiac manifestations. Results: Duringa follow-up of 6.3± 3.7 years, 11 patients developed cardiac events, including advanced atrioven-tricular block (4 patients), ventricular tachycardia (4 patients), and systolic dysfunction (3 patients). All patients had electrocardiographic abnormalities prior to the development of cardiac events. In multivariate analyses, the baseline heart rate and PR interval were associated with increased risk of developing cardiac events. The QRS duration and corrected QT interval were not associated with cardiac manifestations. The multivariate analyses also revealed that baseline conduction disorder, ST segment/T wave abnormalities, and fragmented QRS complexes were associated with cardiac events. Conclusions: Electrocardiographic abnormalities occurred prior to cardiac events in extracardiac sarcoidosis. Patients with electrocardiographic abnormalities may require further evaluation for cardiac involvement and careful follow-up.

AB - Background: Cardiac involvement is a leading cause of death from sarcoidosis. Because the efficacy of corticoste-roid treatment is limited in patients with cardiac manifestation, early diagnosis is important. However, cardiac involvement is difficult to identify at early stages and is often underdiagnosed. Therefore, this study aimed to identify electrocardiographic risk factors for cardiac events in patients with extracardiac sarcoidosis. Methods: This prospective observational cohort study included 227 patients with extracardiac sarcoidosis who did not have any cardiac manifestation (age, 49 ± 17 years; women, 63%). We studied the association of electro-cardiographic abnormalities with developing cardiac manifestations. Results: Duringa follow-up of 6.3± 3.7 years, 11 patients developed cardiac events, including advanced atrioven-tricular block (4 patients), ventricular tachycardia (4 patients), and systolic dysfunction (3 patients). All patients had electrocardiographic abnormalities prior to the development of cardiac events. In multivariate analyses, the baseline heart rate and PR interval were associated with increased risk of developing cardiac events. The QRS duration and corrected QT interval were not associated with cardiac manifestations. The multivariate analyses also revealed that baseline conduction disorder, ST segment/T wave abnormalities, and fragmented QRS complexes were associated with cardiac events. Conclusions: Electrocardiographic abnormalities occurred prior to cardiac events in extracardiac sarcoidosis. Patients with electrocardiographic abnormalities may require further evaluation for cardiac involvement and careful follow-up.

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