Predicting Bleeding Events in Anticoagulated Patients With Atrial Fibrillation: A Comparison Between the HAS‐BLED and GARFIELD‐AF Bleeding Scores

Background Patients with atrial fibrillation (AF) treated with oral anticoagulants may be exposed to an increased risk of bleeding events. The HAS‐BLED (Hypertension, Abnormal renal and liver function, Stroke, Bleeding, Labile INRs, Elderly, Drugs or alcohol) score is a simple, well‐established, cli...

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Main Authors: Marco Proietti, José Miguel Rivera‐Caravaca, María Asunción Esteve‐Pastor, Giulio Francesco Romiti, Francísco Marin, Gregory Y. H. Lip
Format: Article
Language:English
Published: Wiley 2018-09-01
Series:Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease
Subjects:
Online Access:https://www.ahajournals.org/doi/10.1161/JAHA.118.009766
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author Marco Proietti
José Miguel Rivera‐Caravaca
María Asunción Esteve‐Pastor
Giulio Francesco Romiti
Francísco Marin
Gregory Y. H. Lip
author_facet Marco Proietti
José Miguel Rivera‐Caravaca
María Asunción Esteve‐Pastor
Giulio Francesco Romiti
Francísco Marin
Gregory Y. H. Lip
author_sort Marco Proietti
collection DOAJ
description Background Patients with atrial fibrillation (AF) treated with oral anticoagulants may be exposed to an increased risk of bleeding events. The HAS‐BLED (Hypertension, Abnormal renal and liver function, Stroke, Bleeding, Labile INRs, Elderly, Drugs or alcohol) score is a simple, well‐established, clinical bleeding‐risk prediction score. Recently, a new algorithm‐based score was proposed, the GARFIELD‐AF (Global Anticoagulant in the Field–AF) bleeding score. We compared HAS‐BLED and GARFIELD‐AF scores in predicting adjudicated bleeding events in a clinical trial cohort of patients with AF taking anticoagulants, in the first external comparative validation of both scores. Methods and Results We analyzed patients from the SPORTIF (Stroke Prevention Using an Oral Thrombin Inhibitor in Patients With AF) III and V trials. All patients assigned to the warfarin arm with information to calculate the scores were considered. Outcomes were major, major/clinically relevant nonmajor, and any bleeding. A total of 3550 warfarin‐treated patients were available for analysis. Of these patients, 2519 (71.0%) had a HAS‐BLED score ≥3, whereas based on GARFIELD‐AF median value, 2056 (57.9%) were categorized as “high score.” Both HAS‐BLED and GARFIELD‐AF C‐indexes showed modest predictive value (C‐index [95% confidence interval] for major bleeding, 0.58 [0.56–0.60] and 0.56 [0.54–0.57], respectively); however, GARFIELD‐AF was not predictive of any bleeding. The GARFIELD‐AF bleeding score had a significantly lower sensitivity and a negative reclassification for any bleeding compared with HAS‐BLED, assessed by integrated discrimination improvement and net reclassification improvement (both P<0.001). HAS‐BLED showed a 5% net benefit for any bleeding occurrence. Conclusions The algorithm‐based GARFIELD‐AF bleeding score did not show any significant improvement in major and major/clinically relevant nonmajor prediction compared with the simple HAS‐BLED score. For clinical usefulness in prediction of any bleeding, the HAS‐BLED score showed a significant net benefit compared with the GARFIELD‐AF.
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spelling doaj.art-173ec800b4444376af9e41b2809780d62022-12-21T18:11:29ZengWileyJournal of the American Heart Association: Cardiovascular and Cerebrovascular Disease2047-99802018-09-0171810.1161/JAHA.118.009766Predicting Bleeding Events in Anticoagulated Patients With Atrial Fibrillation: A Comparison Between the HAS‐BLED and GARFIELD‐AF Bleeding ScoresMarco Proietti0José Miguel Rivera‐Caravaca1María Asunción Esteve‐Pastor2Giulio Francesco Romiti3Francísco Marin4Gregory Y. H. Lip5Institute of Cardiovascular Sciences University of Birmingham Birmingham United KingdomDepartment of Cardiology Hospital Clínico Universitario Virgen de la Arrixaca Instituto Murciano de Investigación Biosanitaria (IMIB‐Arrixaca), CIBER‐CV Murcia SpainDepartment of Cardiology Hospital Clínico Universitario Virgen de la Arrixaca Instituto Murciano de Investigación Biosanitaria (IMIB‐Arrixaca), CIBER‐CV Murcia SpainDepartment of Internal Medicine and Medical Specialties Sapienza‐University of Rome Rome ItalyDepartment of Cardiology Hospital Clínico Universitario Virgen de la Arrixaca Instituto Murciano de Investigación Biosanitaria (IMIB‐Arrixaca), CIBER‐CV Murcia SpainInstitute of Cardiovascular Sciences University of Birmingham Birmingham United KingdomBackground Patients with atrial fibrillation (AF) treated with oral anticoagulants may be exposed to an increased risk of bleeding events. The HAS‐BLED (Hypertension, Abnormal renal and liver function, Stroke, Bleeding, Labile INRs, Elderly, Drugs or alcohol) score is a simple, well‐established, clinical bleeding‐risk prediction score. Recently, a new algorithm‐based score was proposed, the GARFIELD‐AF (Global Anticoagulant in the Field–AF) bleeding score. We compared HAS‐BLED and GARFIELD‐AF scores in predicting adjudicated bleeding events in a clinical trial cohort of patients with AF taking anticoagulants, in the first external comparative validation of both scores. Methods and Results We analyzed patients from the SPORTIF (Stroke Prevention Using an Oral Thrombin Inhibitor in Patients With AF) III and V trials. All patients assigned to the warfarin arm with information to calculate the scores were considered. Outcomes were major, major/clinically relevant nonmajor, and any bleeding. A total of 3550 warfarin‐treated patients were available for analysis. Of these patients, 2519 (71.0%) had a HAS‐BLED score ≥3, whereas based on GARFIELD‐AF median value, 2056 (57.9%) were categorized as “high score.” Both HAS‐BLED and GARFIELD‐AF C‐indexes showed modest predictive value (C‐index [95% confidence interval] for major bleeding, 0.58 [0.56–0.60] and 0.56 [0.54–0.57], respectively); however, GARFIELD‐AF was not predictive of any bleeding. The GARFIELD‐AF bleeding score had a significantly lower sensitivity and a negative reclassification for any bleeding compared with HAS‐BLED, assessed by integrated discrimination improvement and net reclassification improvement (both P<0.001). HAS‐BLED showed a 5% net benefit for any bleeding occurrence. Conclusions The algorithm‐based GARFIELD‐AF bleeding score did not show any significant improvement in major and major/clinically relevant nonmajor prediction compared with the simple HAS‐BLED score. For clinical usefulness in prediction of any bleeding, the HAS‐BLED score showed a significant net benefit compared with the GARFIELD‐AF.https://www.ahajournals.org/doi/10.1161/JAHA.118.009766atrial fibrillationbleeding riskclinical risk scores
spellingShingle Marco Proietti
José Miguel Rivera‐Caravaca
María Asunción Esteve‐Pastor
Giulio Francesco Romiti
Francísco Marin
Gregory Y. H. Lip
Predicting Bleeding Events in Anticoagulated Patients With Atrial Fibrillation: A Comparison Between the HAS‐BLED and GARFIELD‐AF Bleeding Scores
Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease
atrial fibrillation
bleeding risk
clinical risk scores
title Predicting Bleeding Events in Anticoagulated Patients With Atrial Fibrillation: A Comparison Between the HAS‐BLED and GARFIELD‐AF Bleeding Scores
title_full Predicting Bleeding Events in Anticoagulated Patients With Atrial Fibrillation: A Comparison Between the HAS‐BLED and GARFIELD‐AF Bleeding Scores
title_fullStr Predicting Bleeding Events in Anticoagulated Patients With Atrial Fibrillation: A Comparison Between the HAS‐BLED and GARFIELD‐AF Bleeding Scores
title_full_unstemmed Predicting Bleeding Events in Anticoagulated Patients With Atrial Fibrillation: A Comparison Between the HAS‐BLED and GARFIELD‐AF Bleeding Scores
title_short Predicting Bleeding Events in Anticoagulated Patients With Atrial Fibrillation: A Comparison Between the HAS‐BLED and GARFIELD‐AF Bleeding Scores
title_sort predicting bleeding events in anticoagulated patients with atrial fibrillation a comparison between the has bled and garfield af bleeding scores
topic atrial fibrillation
bleeding risk
clinical risk scores
url https://www.ahajournals.org/doi/10.1161/JAHA.118.009766
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