PMID- 33933712 OWN - NLM STAT- MEDLINE DCOM- 20210518 LR - 20210518 IS - 1872-7565 (Electronic) IS - 0169-2607 (Linking) VI - 205 DP - 2021 Jun TI - The feasibility of predicting impending malignant ventricular arrhythmias by using nonlinear features of short heartbeat intervals. PG - 106102 LID - S0169-2607(21)00177-2 [pii] LID - 10.1016/j.cmpb.2021.106102 [doi] AB - BACKGROUND AND OBJECTIVE: Malignant ventricular arrhythmias (MAs) occur unpredictably and lead to emergencies. A new approach that uses a timely tracking device e.g., photoplethysmogram (PPG) solely to predict MAs would be irreplaceably valuable and it is natural to expect the approach can predict the occurrence as early as possible. METHOD: We assumed that with an appropriate metric based on signal complexity, the heartbeat interval time series (HbIs) can be used to manifest the intrinsic characteristics of the period immediately precedes the MAs (preMAs). The approach first characterizes the patterns of preMAs by a new complexity metric (the refined composite multi-scale entropy). The MAs detector is then constructed by checking the discriminability of the MAs against the sinus rhythm and other prevalent arrhythmias (atrial fibrillation and premature ventricular contraction) of three machine-learning models (SVM, Random Forest, and XGboost). RESULTS: Two specifications are of interest: the length of the HbIs needed to delineate the preMAs patterns sufficiently (l(spec)) and how long before the occurrence of MAs will the HbIs manifest specific patterns that are distinct enough to predict the impending MAs (t(spec)). Our experimental results confirmed the best performance came from a Random-Forest model with an average precision of 99.99% and recall of 88.98% using a HbIs of 800 heartbeats (the l(spec)), 108 seconds (the t(spec)) before the occurrence of MAs. CONCLUSION: By experimental validation of the unique pattern of the preMAs in HbIs and using it in the machine learning model, we showed the high possibility of MAs prediction in a broader circumstance, which may cover daily healthcare using the alternative sensor in HbIs monitoring. Therefore, this research is theoretically and practically significant in cardiac arrest prevention. CI - Copyright (c) 2021 Elsevier B.V. All rights reserved. FAU - Chen, Zheng AU - Chen Z AD - Graduate School of Science and Technology, Nara Insitute of Science and Technology, Japan. FAU - Ono, Naoaki AU - Ono N AD - Graduate School of Science and Technology, Nara Insitute of Science and Technology, Japan; Data Science Center, Nara Insitute of Science and Technology, Japan. FAU - Chen, Wei AU - Chen W AD - Center for Intelligent Medical Electronics, Department of Electronic Engineering, School of Information Science and Technology, Fudan University, Shanghai 200433, China. FAU - Tamura, Toshiyo AU - Tamura T AD - Institute for Healthcare Robotics, Waseda university, Japan. FAU - Altaf-Ul-Amin, M D AU - Altaf-Ul-Amin MD AD - Graduate School of Science and Technology, Nara Insitute of Science and Technology, Japan. FAU - Kanaya, Shigehiko AU - Kanaya S AD - Graduate School of Science and Technology, Nara Insitute of Science and Technology, Japan; Data Science Center, Nara Insitute of Science and Technology, Japan. FAU - Huang, Ming AU - Huang M AD - Graduate School of Science and Technology, Nara Insitute of Science and Technology, Japan. Electronic address: alex-mhuang@is.naist.jp. LA - eng PT - Journal Article DEP - 20210415 PL - Ireland TA - Comput Methods Programs Biomed JT - Computer methods and programs in biomedicine JID - 8506513 SB - IM MH - *Atrial Fibrillation MH - Feasibility Studies MH - *Heart Arrest MH - Heart Rate MH - Humans MH - *Ventricular Premature Complexes/diagnosis OTO - NOTNLM OT - Heartbeat Interval OT - Machine-learning OT - Malignant Ventricular Arrhythmias OT - Prediction OT - Signal Complexity EDAT- 2021/05/03 06:00 MHDA- 2021/05/19 06:00 CRDT- 2021/05/02 20:47 PHST- 2020/07/18 00:00 [received] PHST- 2021/04/05 00:00 [accepted] PHST- 2021/05/03 06:00 [pubmed] PHST- 2021/05/19 06:00 [medline] PHST- 2021/05/02 20:47 [entrez] AID - S0169-2607(21)00177-2 [pii] AID - 10.1016/j.cmpb.2021.106102 [doi] PST - ppublish SO - Comput Methods Programs Biomed. 2021 Jun;205:106102. doi: 10.1016/j.cmpb.2021.106102. Epub 2021 Apr 15.