PMID- 29180909 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20240327 IS - 1179-1470 (Print) IS - 1179-1470 (Electronic) IS - 1179-1470 (Linking) VI - 10 DP - 2017 TI - Wearable cardioverter defibrillators for the prevention of sudden cardiac arrest: a health technology assessment and patient focus group study. PG - 257-271 LID - 10.2147/MDER.S144048 [doi] AB - AIM: To summarize the evidence on clinical effectiveness and safety of wearable cardioverter defibrillator (WCD) therapy for primary and secondary prevention of sudden cardiac arrest in patients at risk. METHODS: We performed a systematic literature search in databases including MEDLINE via OVID, Embase, the Cochrane Library, and CRD (DARE, NHS-EED, HTA). The evidence obtained was summarized according to GRADE methodology. A health technology assessment (HTA) was conducted using the HTA Core Model((R)) for rapid relative effectiveness assessment. Primary outcomes for the clinical effectiveness domain were all-cause and disease-specific mortality. Outcomes for the safety domain were adverse events (AEs) and serious adverse events (SAEs). A focus group with cardiac disease patients was conducted to evaluate ethical, organizational, patient, social, and legal aspects of the WCD use. RESULTS: No randomized- or non-randomized controlled trials were identified. Non-comparative studies (n=5) reported AEs including skin rash/itching (6%), false alarms (14%), and palpitations/light-headedness/fainting (9%) and discontinuation due to comfort/lifestyle issues (16-22%), and SAEs including inappropriate shocks (0-2%), unsuccessful shocks (0-0.7%), and death (0-0.3%). The focus group results reported that experiencing a sense of security is crucial to patients and that the WCD is not considered an option for weeks or even months due to expected restrictions in living a "normal" life. CONCLUSION: The WCD appears to be relatively safe for short-to-medium term, but the quality of existing evidence is very low. AEs and SAEs need to be more appropriately reported in order to further evaluate the safety of the device. High-quality comparative evidence and well-described disease groups are required to assess the effectiveness of the WCD and to determine which patient groups may benefit most from the intervention. FAU - Ettinger, Sabine AU - Ettinger S AD - Ludwig Boltzmann Institute for Health Technology Assessment, Vienna, Austria. FAU - Stanak, Michal AU - Stanak M AD - Ludwig Boltzmann Institute for Health Technology Assessment, Vienna, Austria. FAU - Szymanski, Piotr AU - Szymanski P AD - Institute of Cardiology, Warsaw, Poland. FAU - Wild, Claudia AU - Wild C AD - Ludwig Boltzmann Institute for Health Technology Assessment, Vienna, Austria. FAU - Tandara Hacek, Romana AU - Tandara Hacek R AD - Department for Development, Research and Health Technology Assessment, Agency for Quality and Accreditation in Health Care and Social Welfare, Zagreb, Croatia. FAU - Ercevic, Darija AU - Ercevic D AD - Department for Development, Research and Health Technology Assessment, Agency for Quality and Accreditation in Health Care and Social Welfare, Zagreb, Croatia. FAU - Grenkovic, Renata AU - Grenkovic R AD - Department for Development, Research and Health Technology Assessment, Agency for Quality and Accreditation in Health Care and Social Welfare, Zagreb, Croatia. FAU - Huic, Mirjana AU - Huic M AD - Department for Development, Research and Health Technology Assessment, Agency for Quality and Accreditation in Health Care and Social Welfare, Zagreb, Croatia. LA - eng PT - Journal Article DEP - 20171114 PL - New Zealand TA - Med Devices (Auckl) JT - Medical devices (Auckland, N.Z.) JID - 101566041 PMC - PMC5697444 OTO - NOTNLM OT - cardioverter defibrillator OT - external OT - patient involvement OT - sudden cardiac arrest OT - ventricular fibrillation OT - ventricular tachycardia OT - wearable COIS- Disclosure The authors report no conflicts of interest in this work. EDAT- 2017/11/29 06:00 MHDA- 2017/11/29 06:01 PMCR- 2017/11/14 CRDT- 2017/11/29 06:00 PHST- 2017/11/29 06:00 [entrez] PHST- 2017/11/29 06:00 [pubmed] PHST- 2017/11/29 06:01 [medline] PHST- 2017/11/14 00:00 [pmc-release] AID - mder-10-257 [pii] AID - 10.2147/MDER.S144048 [doi] PST - epublish SO - Med Devices (Auckl). 2017 Nov 14;10:257-271. doi: 10.2147/MDER.S144048. eCollection 2017.