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October 13, 2020Blood AdvancesOpen Access

Risk-assessment models for VTE and bleeding in hospitalized medical patients: an overview of systematic reviews

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Key result

Padua, Geneva, and Kucher models increase appropriate VTE prophylaxis but lack adequate external validation.

Why the study?

Multiple risk-assessment models (RAMs) for VTE in hospitalized medical patients have been developed, and evidence related to RAMs for VTE and bleeding was needed to inform the 2018 ASH guidelines.

Do risk-assessment models for VTE and bleeding improve outcomes or appropriate prophylaxis rates in hospitalized medical patients?

Population

2 systematic reviews comprising 19 unique studies reporting on 15 RAMs in medical inpatients

Comparison

15 risk-assessment models for VTE and bleeding

Design

Overview of systematic reviews

Authors

ADAndrea DarziImpactARAllen B ReppUniversity of VermontFSFrederick A. SpencerGeneral Cardiology

Discussion

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Member takes

Overview

Supports use of Padua, Geneva, and Kucher models to increase appropriate prophylaxis; leaves open external validation and outcome impact.

Study Design

Type

Systematic Review

Structured PICO

Do risk-assessment models for VTE and bleeding improve outcomes or appropriate prophylaxis rates in hospitalized medical patients?

P
Population
Adult patients hospitalized for an acute, critical, or chronic medical illness. Included 2 systematic reviews comprising 19 unique studies reporting on 15 risk-assessment models.
I
Intervention
Risk-assessment models (RAMs) for VTE and bleeding
C
Comparator
Standard care without the use of RAMs or a different RAM
O
Outcome
VTE (any symptomatic or asymptomatic DVT or PE from hospital admission up to 90 days postdischarge) and bleeding (any major or nonmajor but clinically significant bleeding up to 90 days postdischarge)hard clinical

This overview of systematic reviews identified 15 VTE risk-assessment models for medical inpatients, highlighting that the Padua, Geneva, and Kucher models have demonstrated improved appropriate prophylaxis rates in impact studies.

Limitations

  • Lack of generalizability and adequate validation of the published RAMs.
  • Heterogeneity in RAM development methods and outcome measurements precluded meta-analysis.
  • No systematic reviews evaluating RAMs for bleeding were identified.
  • One of the two included systematic reviews had a high risk of bias.
  • Lack of generalizability and adequate validation of the published RAMs
  • Variability in the methods to develop the RAMs, outcome measurements, and risk factors prevented meta-analysis
  • One included systematic review was at high risk of bias

Cite This Study

Darzi et al. (2020) conducted a systematic review in Venous thromboembolism (VTE) and bleeding. Risk-assessment models (RAMs) vs. Standard care or alternative RAMs was evaluated on Predictive performance and impact on VTE prophylaxis rates. The Padua, Geneva, and Kucher risk-assessment models for venous thromboembolism increased appropriate prophylaxis rates in hospitalized medical patients, although most models lack adequate external validation.

synapsesocial.com/papers/6a0a587dfdd00ab7863dcc5ahttps://doi.org/10.1182/bloodadvances.2020002482
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Risk models for VTE and bleeding in medical inpatients: systematic identification and expert assessment2020 · 32 citations
  2. 2Comparative Performance of Clinical Risk Assessment Models for Hospital-Acquired Venous Thromboembolism in Medical Patients2018 · 34 citations
  3. 3Risk factor model to predict venous thromboembolism in hospitalized medical patients2011 · 70 citations
  4. 4Multicentre validation of the Geneva Risk Score for hospitalised medical patients at risk of venous thromboembolism2013 · 115 citations
  5. 5Risk-assessment algorithm and recommendations for venous thromboembolism prophylaxis in medical patients.2007 · 70 citations