Heart failure & cardiomyopathies

Predictive Value of NT pro BNP for New-Onset Atrial Fibrillation in Heart Failure and Preserved Ejection Fraction

ESC Heart FailPublished Secondary analysis of the TOPCAT randomised trial

Primary result · New-onset AFResult — go to the resultHazard ratio 1.16 95% CI 1.02–1.32

Authors' conclusion

Among patients with HFpEF, the NT-proBNP level was positively associated with the incidence of new-onset AF and may be a promising predictor.

Study context

Population
Heart failure with preserved ejection fraction (HFpEF) patients without baseline atrial fibrillation (AF) from the TOPCAT trial
Participants
367 patients
Comparison
NT-proBNP as predictor of new-onset AF
Primary endpoint
New-onset AF
Follow-up
Median 2.91 years

Primary result

As reported in the abstract

Hazard ratio

1.16

95% CI 1.02–1.32

NT-proBNP (per 1000 pg/mL increase)
HR 1.16 (95% CI 1.02–1.32)

Per 1000 pg/mL increase, as printed

New-onset AF cases
17 (4.63%)
C-statistic of NT-proBNP for new-onset AF at 3 years (moderate)
0.67

Further findings

Added value of NT-proBNP to risk scores for AF

CHADS2 C-statistic
0.63
CHADS2+NT C-statistic
0.69
CHADS2+NT net reclassification index (NRI)
47.46%
CHADS2+NT integrated discrimination improvement (IDI)
1.18%
R2CHADS2 C-statistic
0.65
R2CHADS2+NT C-statistic
0.70
R2CHADS2+NT NRI
48.03%
R2CHADS2+NT IDI
0.51%
CHA2DS2-VASc C-statistic
0.67
CHA2DS2-VASc+NT C-statistic
0.72
CHA2DS2-VASc+NT NRI
49.41%
CHA2DS2-VASc+NT IDI
0.86%
C2HSET C-statistic
0.77
C2HSET+NT C-statistic
0.80
C2HSET+NT NRI
50.32%
C2HSET+NT IDI
1.58%

Original publication

Predictive Value of NT pro BNP for New-Onset Atrial Fibrillation in Heart Failure and Preserved Ejection Fraction. ESC Heart Fail. Published 28 August 2024. doi:10.1002/ehf2.14951

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