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Possible predictive role of electrical risk score on transcatheter aortic valve replacement outcomes in older patients: preliminary data

Authors Piccirillo G, Moscucci F, Mastropietri F, Di Iorio C, Mariani MV, Fabietti M, Stricchiola GM, Parrotta I, Sardella G, Mancone M, Magrì D

Received 6 April 2018

Accepted for publication 7 June 2018

Published 11 September 2018 Volume 2018:13 Pages 1657—1667


Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 2

Editor who approved publication: Dr Richard Walker

Gianfranco Piccirillo,1 Federica Moscucci,1 Fabiola Mastropietri,1 Claudia Di Iorio,1 Marco Valerio Mariani,1 Marcella Fabietti,1 Gaetana M Stricchiola,1 Ilaria Parrotta,1 Gennaro Sardella,1 Massimo Mancone,1 Damiano Magrì2

1Department of Cardiovascular, Respiratory, Nephrological, Anesthesiologic, and Geriatric Sciences, Policlinico Umberto I, “La Sapienza” University of Rome, Rome, Italy; 2Department of Molecular and Clinical Medicine, S. Andrea Hospital, “Sapienza” University of Rome, Rome, Italy

Objectives: To evaluate the predicative power of the electrical risk score (ERS), a noninvasive and inexpensive test obtained by means of a standard 12-lead electrocardiogram (ECG), in a cohort of elderly patients who had undergone transcatheter aortic valve replacement (TAVR).
Methods: Survivors and non-survivors after TAVR at 1-year follow-up were compared in respect to the pre-procedural ERS as well as a number of other clinical and instrumental variables. ERS is composed of seven simple ECG markers: heart rate (>75 bpm); QRS duration (>110 ms); left ventricular hypertrophy (Sokolow–Lyon criteria); delayed QRS transition zone (≥ V4); frontal QRS-T angle (>90°); long QTBazett (>450 ms for men and >460 in women) or JTBazett (330 ms for men and >340 ms for women); and long Tpeak to Tend interval (Tp-e) (>89 ms). The trial was registered in as NCT03145376.
Results: A total of 40 patients were evaluated. During the follow-up, the all-cause mortality rate was 25% (ten patients) with 15% of cardiovascular death (six patients). The ERS was the strongest predictor of all-cause (odds ratio 3.73, 95% CI: 1.44–9.66, P<0.05) or cardiovascular (odds ratio 3.95, 95% CI: 1.09–14.27, P<0.05) mortality. Receiver operating characteristic curves showed that ERS had the widest significant sensitivity-specificity area under the curve (AUC) predicting all-cause (AUC: 0.855, P<0.05) or cardiovascular mortality (AUC: 0.908, P<0.05).
Conclusion: ERS seems to be a useful noninvasive tool able to stratify the risk of mortality in 1-year follow-up of TAVR patients. These findings, however, require larger trials to be confirmed.

Keywords: aortic stenosis, transaortic valve replacement, electrical risk score, mortality, Tpeak–Tend, QTc, frontal QRS-T angle

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