Application of the newest European Association of Cardiovascular Imaging Recommendation regarding the long-term prognostic relevance of left ventricular diastolic function in heart failure with preserved ejection fraction
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Abstract
Objective
The long-term predictive value of the new proposed algorithm in the updated 2016 guidelines of the European Association of Cardiovascular Imaging to assess diastolic dysfunction (DD) in patients with heart failure with preserved ejection fraction (HFpEF) has not been validated.
Methods
The analysis included 451 patients who were diagnosed with HFpEF as confirmed via echocardiography. The endpoints were mortality and hospitalization for HF. The Kaplan–Meier curves and Cox regression models were generated to determine the risk of all-cause mortality based on the 2016 and 2009 DD grading algorithm, respectively. We evaluated the net reclassification index of outcomes on the basis of 2009 DD grade after abiding by the 2016 recommendations.
Results
After a follow-up of 2976 days, 119 patients (26.4%) died. According to the 2016 DD grading, grade III DD was associated with a significantly higher risk of mortality (hazard ratio [HR], 2.209; 95% CI 1.144–4.266) and HF hospitalization (HR, 2.047; 95% CI 1.348–3.870), as compared with grade I DD. Grade II DD was also associated with a higher risk of mortality (HR, 1.538; 95% CI 1.313–1.924). However, only grade III DD was independently associated with worse mortality based on 2009 DD grading. The net reclassification index for mortality increased significantly after grading by 2016 algorithm (10.6%, p < 0.001).
Conclusions
The 2016 DD grading algorithm showed improved prognostic value of long-term mortality in patients with HFpEF. Based on the findings of the study, the appropriate grading of DD is important in the prognostication of patients with HFpEF.
Key Points
• The application of the 2016 European Association of Cardiovascular Imaging recommendations diastolic dysfunction (DD) grading algorithm improves the predictive value for mortality.
• Our analysis suggests DD grades II and III based on 2016 guidelines is associated with poor outcomes as compared with grade I. The echocardiographic indices of the new algorithm should be obtained and applied to effectively evaluate DD.
Keywords
Left-sided heart failure Transthoracic echocardiography MortalityAbbreviations
- ACEI
Angiotensin-converting enzyme inhibitors
- ARB
Angiotensin II receptor blockers
- ASE
American Society of Echocardiography
- CCB
Calcium channel blockers
- CI
Confidence interval
- DD
Diastolic dysfunction
- EACVI
European Association of Cardiovascular Imaging
- HFpEF
Heart failure with preserved ejection fraction
- HR
Hazard ratio
- I-PRESERVE
Irbesartan in Heart Failure With Preserved Ejection Fraction
- LAP
Left atrial pressure
- LAVI
Left atrium volume index
- LVDD
Left ventricular diastolic dysfunction
- MACE
Major cardiovascular events
- NYHA
New York Heart Association
- PCWP
Pulmonary capillary wedge pressure
- ROC
Receiver operating characteristic
- RV
Right ventricular
- SHF
Systolic heart failure
- TDHFR
Taiwan Diastolic Heart Failure Registry
- TR
Tricuspid regurgitation
- TRPG
Tricuspid regurgitation pressure gradient
Notes
Funding
This work was supported, in part, by the IBMS CRC Research Program of Institute of Biomedical Science, Academia Sinica (IBMS-CRC99-P02), and grants (NSC 99-2314-B-002-131-MY3, NSC 100-2341-B-002-160-) from the National Science Council of R.O.C.
Compliance with ethical standards
Guarantor
The scientific guarantor of this publication is Dr. Cho-Kai Wu.
Conflict of interest
The authors of this manuscript declare no relationships with any companies, whose products or services may be related to the subject matter of the article.
Statistics and biometry
No complex statistical methods were necessary for this paper.
Informed consent
Written informed consent was obtained from all subjects (patients) in this study.
Ethical approval
Institutional Review Board approval was obtained.
Methodology
• Prospective
• Observational
• Performed at one institution
Supplementary material
References
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