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Eligibility criteria in heart failure randomized controlled trials: a gap between evidence and clinical practice

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Abstract

The aim of the present study was to compare the characteristics of patients referred to our heart failure outpatient clinic with those of patients enrolled in clinical trials on heart failure pharmacological treatment. Thus, we estimated the proportion of patients admitted to our heart failure outpatient clinic who would have been included in randomized controlled trials evaluating the effects of medical treatments on heart failure mortality, published over a 10 years period (1993–2003). Sixteen studies (n = 45276) and 299 consecutive outpatients, were included. On average, only 34% of the outpatients would have been included in at least one of the 16 trials (8–71%). The main reasons for exclusion were: NYHA class (70% were in NYHA class II), ejection fraction (29% had EF > 35%), co-morbidity (51% had co-morbidity, mainly renal failure, COPD, and disthyroidism), age (22% were older than 80 years), and occurrence of a recent acute event (50% experienced an ischemic coronary syndrome, revascularization, pulmonary edema, or stroke in the prior 6 months). These results underline the crucial role of patient selection in clinical trials, raising uncertainties about the complete applicability of trial results to clinical practice.

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Acknowledgment

This work was partially supported by a FIRST 2006 Grant from the University of Milan (to N.M.)

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Authors and Affiliations

  1. Division of Internal Medicine II, L. Sacco Hospital, University of Milan, Via GB Grassi 74, 20157, Milan, Italy

    Giorgio Costantino, Anna Maria Rusconi, Stefano Guzzetti, Ilaria Bossi, Marta Del Medico, Giuseppina Pisano, Mara Bulgheroni, Monica Solbiati, Raffaello Furlan & Nicola Montano

  2. Medical Statistics, Department of Clinical Sciences, L. Sacco Hospital, University of Milan, Milan, Italy

    Pier Giorgio Duca

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  1. Giorgio Costantino
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  2. Anna Maria Rusconi
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  3. Pier Giorgio Duca
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  4. Stefano Guzzetti
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  5. Ilaria Bossi
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  6. Marta Del Medico
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  7. Giuseppina Pisano
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  9. Monica Solbiati
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  10. Raffaello Furlan
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  11. Nicola Montano
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Correspondence to Giorgio Costantino.

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Costantino, G., Rusconi, A.M., Duca, P.G. et al. Eligibility criteria in heart failure randomized controlled trials: a gap between evidence and clinical practice. Intern Emerg Med 4, 117–122 (2009). https://doi.org/10.1007/s11739-008-0180-9

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  • DOI: https://doi.org/10.1007/s11739-008-0180-9

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