Heart failure & cardiomyopathies

Prognostic value of heart failure hospitalization in transthyretin cardiac amyloidosis: an international cohort study

ESC Heart FailPublished international cohort study

Authors' conclusion

HFH is independently associated with all-cause mortality in patients with TTR-CA and has incremental value on top of established risk models.

Study context

Population
Real-world patients with transthyretin cardiac amyloidosis (TTR-CA)patients included
Participants
654 patients
Exposure
Patients were dichotomized according to the occurrence of at least one heart failure hospitalization (HFH)
  • HFHn = 141
Outcome
Occurrence of at least one HFH and death
Follow-up
Median 24 (11-45) months
Methodological detailsmulticentre TTR-CA registry, landmark analysis at 1-year follow-up, Cox regression with HFH as a time-dependent covariate
  • Multicentre TTR-CA registry
  • Landmark analysis at 1-year follow-up
  • Cox regression with HFH as a time-dependent covariate

Main finding

As reported in the abstract

median follow-up of 24 (11-45) months

At least one HFH

141

22%

Died

170

26%

Observational data: associations, not effects.

Further findings

All-cause mortality

HR (95% CI)P value
HFHUnivariable7.71 (5.50–10.82)P < 0.001
OutcomeHFHNo HFH
Characteristics, HFH vs no HFH
Age8276
Wild-type TTR-CA126 (89.4%)336 (65.5%)
NYHA Class II-IV119 (86.9%)279 (62%)
Disease-modifying therapy45 (31.9%)247 (47.4%)
  • Characteristics, HFH vs no HFH: age P < .001
  • Characteristics, HFH vs no HFH: wild type P < .001
  • Characteristics, HFH vs no HFH: NYHA P < .001
  • Characteristics, HFH vs no HFH: disease-modifying therapy P = .001

Overall survival · 1-year time point

Patients with HFH had significant worse overall survival (log-rank χ²)
37.673
  • P < .001
  • Landmark analysis

All-cause mortality

HFH associated with all-cause mortality at multivariable analysis

Baseline characteristics

Median age
78 (64, 83) years
Male
70.5%
Wild type
70.6%

Characteristics, HFH vs no HFH

Patients with HFH had higher National Amyloidosis Centre (NAC) disease stage, more co-morbidities and signs of more advanced disease by echocardiography

Incremental value of HFH on top of risk models

Model 1 (estimated glomerular filtration rate) χ²
97.3
Model 2 (NAC disease stage) χ²
78.8
Model 3 (left ventricular mass index + stroke volume index + significant valvular lesion) χ²
60.3
Model 4 (including E/e′) χ²
43.4
  • Each P < .001

Original publication

Prognostic value of heart failure hospitalization in transthyretin cardiac amyloidosis: an international cohort study. ESC Heart Fail. Published 8 January 2026. doi:10.1093/eschf/xvaf013

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