Long‐Term Outcomes of Cardiac Sarcoid: Prognostic Implications of Isolated Cardiac Involvement and Impact of Diagnostic Delays

Background Isolated cardiac sarcoid (iCS) is reported to have more severe clinical presentation and greater risk of adverse events compared with cardiac sarcoid (CS) with extracardiac involvement (nonisolated CS). Delays in diagnosing specific organ involvement may play a role in these described dif...

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Main Authors: Joshua Sink, Cara Joyce, Max J. Liebo, David J. Wilber
Format: Article
Language:English
Published: Wiley 2023-10-01
Series:Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease
Subjects:
Online Access:https://www.ahajournals.org/doi/10.1161/JAHA.122.028342
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author Joshua Sink
Cara Joyce
Max J. Liebo
David J. Wilber
author_facet Joshua Sink
Cara Joyce
Max J. Liebo
David J. Wilber
author_sort Joshua Sink
collection DOAJ
description Background Isolated cardiac sarcoid (iCS) is reported to have more severe clinical presentation and greater risk of adverse events compared with cardiac sarcoid (CS) with extracardiac involvement (nonisolated CS). Delays in diagnosing specific organ involvement may play a role in these described differences. Methods and Results A retrospective observational study of patients with CS over a 20‐year period was conducted. Objective evidence of organ involvement and time of onset based on consensus criteria were identified. CS was confirmed by histology in all patients from myocardium only (iCS) or extracardiac tissue (nonisolated CS). The primary end point was a composite of mortality, orthotopic heart transplant, and durable left ventricular assist device implantation. CS was isolated in 9 of 50 patients (18%). Among baseline characteristics, iCS and nonisolated CS differed significantly only in the frequency of sustained ventricular tachycardia at presentation (78% versus 37%; P=0.03) and delay in CS diagnosis >6 months (67% versus 5%; P<0.01). A nonsignificant trend toward lower left ventricular ejection fraction and more frequent heart failure in iCS was observed. Over a median follow‐up of 9.7 years (95% CI, 6.8–10.8), 18 patients reached the primary end point (13 deaths, 2 orthotopic heart transplants, and 3 durable left ventricular assist device implantations). The 1‐, 5‐, and 10‐year event‐free survival rates were 96% (95% CI, 85%–99%), 79% (95% CI, 64%–88%), and 58% (95% CI, 40%–73%), respectively, without differences between groups. There were no significant predictors of the primary end point, including delayed CS diagnosis. Conclusions Long‐term outcomes were similar between iCS and nonisolated CS in patients with histologically documented sarcoid. Diagnostic delays may contribute to differences in the dominant clinical presentation, despite similar outcomes.
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spelling doaj.art-6f4abcefddb94ce187dfb845ff6dde122023-12-18T11:20:28ZengWileyJournal of the American Heart Association: Cardiovascular and Cerebrovascular Disease2047-99802023-10-01121910.1161/JAHA.122.028342Long‐Term Outcomes of Cardiac Sarcoid: Prognostic Implications of Isolated Cardiac Involvement and Impact of Diagnostic DelaysJoshua Sink0Cara Joyce1Max J. Liebo2David J. Wilber3Loyola University Chicago Stritch School of Medicine Maywood IL USADepartment of Medicine Loyola University of Chicago Stritch School of Medicine Maywood IL USASection of Advanced Heart Failure, Division of Cardiology, Department of Medicine Loyola University Chicago Stritch School of Medicine Maywood IL USADepartment of Medicine Loyola University of Chicago Stritch School of Medicine Maywood IL USABackground Isolated cardiac sarcoid (iCS) is reported to have more severe clinical presentation and greater risk of adverse events compared with cardiac sarcoid (CS) with extracardiac involvement (nonisolated CS). Delays in diagnosing specific organ involvement may play a role in these described differences. Methods and Results A retrospective observational study of patients with CS over a 20‐year period was conducted. Objective evidence of organ involvement and time of onset based on consensus criteria were identified. CS was confirmed by histology in all patients from myocardium only (iCS) or extracardiac tissue (nonisolated CS). The primary end point was a composite of mortality, orthotopic heart transplant, and durable left ventricular assist device implantation. CS was isolated in 9 of 50 patients (18%). Among baseline characteristics, iCS and nonisolated CS differed significantly only in the frequency of sustained ventricular tachycardia at presentation (78% versus 37%; P=0.03) and delay in CS diagnosis >6 months (67% versus 5%; P<0.01). A nonsignificant trend toward lower left ventricular ejection fraction and more frequent heart failure in iCS was observed. Over a median follow‐up of 9.7 years (95% CI, 6.8–10.8), 18 patients reached the primary end point (13 deaths, 2 orthotopic heart transplants, and 3 durable left ventricular assist device implantations). The 1‐, 5‐, and 10‐year event‐free survival rates were 96% (95% CI, 85%–99%), 79% (95% CI, 64%–88%), and 58% (95% CI, 40%–73%), respectively, without differences between groups. There were no significant predictors of the primary end point, including delayed CS diagnosis. Conclusions Long‐term outcomes were similar between iCS and nonisolated CS in patients with histologically documented sarcoid. Diagnostic delays may contribute to differences in the dominant clinical presentation, despite similar outcomes.https://www.ahajournals.org/doi/10.1161/JAHA.122.028342cardiac sarcoidcardiomyopathyheart failuremortalitysarcoidosis
spellingShingle Joshua Sink
Cara Joyce
Max J. Liebo
David J. Wilber
Long‐Term Outcomes of Cardiac Sarcoid: Prognostic Implications of Isolated Cardiac Involvement and Impact of Diagnostic Delays
Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease
cardiac sarcoid
cardiomyopathy
heart failure
mortality
sarcoidosis
title Long‐Term Outcomes of Cardiac Sarcoid: Prognostic Implications of Isolated Cardiac Involvement and Impact of Diagnostic Delays
title_full Long‐Term Outcomes of Cardiac Sarcoid: Prognostic Implications of Isolated Cardiac Involvement and Impact of Diagnostic Delays
title_fullStr Long‐Term Outcomes of Cardiac Sarcoid: Prognostic Implications of Isolated Cardiac Involvement and Impact of Diagnostic Delays
title_full_unstemmed Long‐Term Outcomes of Cardiac Sarcoid: Prognostic Implications of Isolated Cardiac Involvement and Impact of Diagnostic Delays
title_short Long‐Term Outcomes of Cardiac Sarcoid: Prognostic Implications of Isolated Cardiac Involvement and Impact of Diagnostic Delays
title_sort long term outcomes of cardiac sarcoid prognostic implications of isolated cardiac involvement and impact of diagnostic delays
topic cardiac sarcoid
cardiomyopathy
heart failure
mortality
sarcoidosis
url https://www.ahajournals.org/doi/10.1161/JAHA.122.028342
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