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<p>The aim of this study was to evaluate and update the effects of immunosuppressive therapy on heart failure outcomes in patients aged&#xa0;16&#xa0;years or older with biopsy-proven inflammatory myocardial disease. We performed a systematic review and an aggregate data meta-analysis of studies evaluating the effects of such therapy in acute and chronic myocarditis or inflammatory dilated cardiomyopathy. Studies were chosen based on criteria related to clinical relevance for therapeutic decisions and measured outcomes in left ventricular ejection fraction (LVEF) and New York Heart Association classification (NYHA) at 3, 6, and 12&#xa0;months. Data sources included PubMed, Embase, Ovid, and ClinicalTrials.gov, with manual reference checks. Data extraction and risk-of-bias assessments were performed by two independent reviewers. We used a random-effects model and assessed heterogeneity with I<sup>2</sup> and τ<sup>2</sup> statistics. . Seven eligible studies with a total of 594 patients were included, that investigated clinical course of acute and chronic myocarditis and inflammatory dilated cardiomyopathy. At 3&#xa0;months, the pooled standardized mean difference (SMD) for LVEF was 0.97 (95% CI –0.05 to 1.99; <i>p</i> &gt; 0.05). At 6&#xa0;months, the pooled SMD was 0.48 (95% CI –1.31 to 2.28), and at 12&#xa0;months, –0.01 (95% CI –1.65 to 1.62). For NYHA classification, pooled SMDs were 0.02 (95% CI –0.21 to 0.25) at 3&#xa0;months and –0.22 (95% CI –1.56 to 1.11) at 12&#xa0;months. In all cases, confidence intervals crossed zero. Heterogeneity remained high (I<sup>2</sup> = 92–97%), reflecting substantial variability across studies. In patients with acute or chronic myocarditis or inflammatory dilated cardiomyopathy, immunosuppressive therapy does not improve key echocardiographic or clinical parameters when adding new data from randomized controlled trials (RCTs). High heterogeneity suggests variability in patient populations and protocols, highlighting the need for well-designed RCTs. There is still no evidence to support routine endomyocardial biopsy in non-severe disease, as it will not impact symptomatic treatment, even if inflammation is present.</p>

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Immunosuppressive therapy in patients with biopsy-proven inflammatory myocardial disease: a systematic review and meta-analysis

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年10月23日

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  • Bruno Stautner,
  • Michał Tkaczyszyn,
  • Anne Sorg,
  • Tomasz Suchocki,
  • Ewa Anita Jankowska

摘要

The aim of this study was to evaluate and update the effects of immunosuppressive therapy on heart failure outcomes in patients aged 16 years or older with biopsy-proven inflammatory myocardial disease. We performed a systematic review and an aggregate data meta-analysis of studies evaluating the effects of such therapy in acute and chronic myocarditis or inflammatory dilated cardiomyopathy. Studies were chosen based on criteria related to clinical relevance for therapeutic decisions and measured outcomes in left ventricular ejection fraction (LVEF) and New York Heart Association classification (NYHA) at 3, 6, and 12 months. Data sources included PubMed, Embase, Ovid, and ClinicalTrials.gov, with manual reference checks. Data extraction and risk-of-bias assessments were performed by two independent reviewers. We used a random-effects model and assessed heterogeneity with I2 and τ2 statistics. . Seven eligible studies with a total of 594 patients were included, that investigated clinical course of acute and chronic myocarditis and inflammatory dilated cardiomyopathy. At 3 months, the pooled standardized mean difference (SMD) for LVEF was 0.97 (95% CI –0.05 to 1.99; p > 0.05). At 6 months, the pooled SMD was 0.48 (95% CI –1.31 to 2.28), and at 12 months, –0.01 (95% CI –1.65 to 1.62). For NYHA classification, pooled SMDs were 0.02 (95% CI –0.21 to 0.25) at 3 months and –0.22 (95% CI –1.56 to 1.11) at 12 months. In all cases, confidence intervals crossed zero. Heterogeneity remained high (I2 = 92–97%), reflecting substantial variability across studies. In patients with acute or chronic myocarditis or inflammatory dilated cardiomyopathy, immunosuppressive therapy does not improve key echocardiographic or clinical parameters when adding new data from randomized controlled trials (RCTs). High heterogeneity suggests variability in patient populations and protocols, highlighting the need for well-designed RCTs. There is still no evidence to support routine endomyocardial biopsy in non-severe disease, as it will not impact symptomatic treatment, even if inflammation is present.