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Abstract AimsAge-related changes in cardiac structure and function are well recognized and make the clinical determination of abnormal left ventricular (LV) diastolic dysfunction (LVDD) particularly challenging in the elderly. We investigated whether a deep neural network (DeepNN) model of LVDD, previously validated in a younger cohort, can be implemented in an older population to predict incident heart failure (HF). Methods and resultsA previously developed DeepNN was tested on 5596 older participants (66–90 years; 57% female; 20% Black) from the Atherosclerosis Risk in Communities Study. The association of DeepNN predictions with HF or all-cause death for the American College of Cardiology Foundation/American Heart Association Stage A/B (n = 4054) and Stage C/D (n = 1542) subgroups was assessed. The DeepNN-predicted high-risk compared with the low-risk phenogroup demonstrated an increased incidence of HF and death for both Stage A/B and Stage C/D (log-rank P < 0.0001 for all). In multi-variable analyses, the high-risk phenogroup remained an independent predictor of HF and death in both Stages A/B {adjusted hazard ratio [95% confidence interval (CI)] 6.52 [4.20–10.13] and 2.21 [1.68–2.91], both P < 0.0001} and Stage C/D [6.51 (4.06–10.44) and 1.03 (1.00–1.06), both P < 0.0001], respectively. In addition, DeepNN showed incremental value over the 2016 American Society of Echocardiography/European Association of Cardiovascular Imaging (ASE/EACVI) guidelines [net re-classification index, 0.5 (CI 0.4–0.6), P < 0.001; C-statistic improvement, DeepNN (0.76) vs. ASE/EACVI (0.70), P < 0.001] overall and maintained across stage groups. ConclusionDespite training with a younger cohort, a deep patient-similarity–based learning framework for assessing LVDD provides a robust prediction of all-cause death and incident HF for older patients.more » « less
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Bernard, Jérémy; Yanamala, Naveena; Shah, Rohan; Seetharam, Karthik; Altes, Alexandre; Dupuis, Marlène; Toubal, Oumhani; Mahjoub, Haïfa; Dumortier, Hélène; Tartar, Jean; et al (, JACC: Cardiovascular Imaging)
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Risi, Joseph; Sharma, Amit; Shah, Rohan; Connelly, Matthew; Watts, Duncan J. (, Nature Human Behaviour)