Background: The LifeVest® wearable cardioverter-defibrillator (WCD) prevents sudden cardiac death in at-risk patients who are not candidates for an implantable defibrillator. The safety and efficacy of the WCD may be impacted by inappropriate shocks (IAS).
Objective: The purpose of this study was to assess the causes and clinical consequences of WCD IAS in survivors of IAS events.
Methods: The Food and Drug Administration's Manufacturers and User Facility Device Experience database was searched for IAS adverse events (AE) that were reported during 2021 and 2022.
Results: A total of 2568 IAS-AE were found (average number of IAS per event: 1.5 ± 1.9; range 1-48). IAS were caused by tachycardias (1255 [48.9%]), motion artifacts (840 [32.7%]), and oversensing (OS) of low-level electrical signals (473 [18.4%]) (P <.001). Tachycardias included atrial fibrillation (AF) (828 [32.2%]), supraventricular tachycardia (SVT) (333 [13.0%]), and nonsustained ventricular tachycardia/fibrillation (NSVT/VF) (87 [3.4%]). Activities responsible for motion-induced IAS included riding a motorcycle, lawnmower, or tractor (n = 128). In 19 patients, IAS induced sustained ventricular tachycardia or ventricular fibrillation that subsequently were terminated by appropriate WCD shocks. Thirty patients fell and suffered physical injuries. Conscious patients (n = 1905) did not use the response buttons to abort shocks (47.9%) or used them improperly (20.2%). IAS resulted in 1190 emergency room visits or hospitalizations, and 17.3% of patients (421/2440) discontinued the WCD after experiencing IAS, especially multiple IAS.
Conclusions: The LifeVest WCD may deliver IAS caused by AF, SVT, NSVT/VF, motion artifacts, and oversensing of electrical signals. These shocks may be arrhythmogenic, result in injuries, precipitate WCD discontinuation, and consume medical resources. Improved WCD sensing, rhythm discrimination, and methods to abort IAS are needed.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.hrthm.2023.03.1604 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Polysomnographic titration of non-invasive ventilation in motor neurone disease (3TLA): study protocol for a randomised controlled trial.
Trials
January 2025
Department of Physiotherapy, Melbourne School of Health Science, University of Melbourne, Melbourne, Australia.
Background: Non-invasive ventilation (NIV) uses positive pressure to assist people with respiratory muscle weakness or severe respiratory compromise to breathe. Most people use this treatment during sleep when breathing is most susceptible to instability. The benefits of using NIV in motor neurone disease (MND) are well-established.
View Article and Find Full Text PDFMedical therapy to treat obesity and optimize fertility in women of reproductive age: a narrative review.
Reprod Biol Endocrinol
January 2025
Departments of Internal Medicine and Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, 330 Cedar St, New Haven, CT, 06510, USA.
Background: Overweight and obesity-chronic illnesses in which an increase in body fat promotes adipose tissue dysfunction and abnormal fat mass resulting in adverse metabolic, biomechanical, and psychosocial health consequences-negatively impact female fertility. Adverse conception outcomes are multifactorial, ranging from poor oocyte quality and implantation issues to miscarriages and fetal health issues. However, with the advent of novel pharmacologic agents, significant weight loss can be achieved, improving the chances of healthy pregnancies, and their use should be considered during periconceptual counseling.
View Article and Find Full Text PDFEffect of dietary supplementation of Lawsonia inermis and Acacia nilotica extract on growth performance, intestinal histopathology, and antioxidant status of broiler chickens challenged with coccidiosis.
BMC Vet Res
January 2025
Department of Poultry and Rabbit Diseases, Faculty of Veterinary Medicine, Aswan University, Aswan, 81528, Egypt.
Avian coccidiosis is one of the many disorders that seriously harm birds' digestive systems. Nowadays the light is shed on using Phytochemical/herbal medicines as alternative natural anti-coccidial chemical-free standards. Consequently, this study aimed to investigate the impact of lawsonia inermis powder (LIP), and Acacia nilotica aqueous extract (ANAE), on growth performance, serum biochemical, antioxidant status, cytokine biomarkers, total oocyst count and intestinal histopathology of broiler chickens challenged with coccidiosis.
View Article and Find Full Text PDFProphylactic barrage laser in patients with previous vitreous loss during cataract surgery: a randomized clinical trial.
BMC Ophthalmol
January 2025
Poostchi Ophthalmology Research Center, Department of Ophthalmology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
Background: One of the significant challenges that can arise during cataract surgery is the occurrence of posterior capsule rupture (PCR) and vitreous loss. It may result in different complications including cystoid macular edema, endophthalmitis, glaucoma, and considerably retinal detachment which consequently contributes to poor functional outcomes.
Methods: This study was a prospective double blinded randomized clinical trial including 42 patients with previous complicated cataract surgery including posterior capsular rupture and consequently vitreous loss that anterior vitrectomy was done for them.
Pentraxin 3: a novel biomarker in pediatric central nervous system infections.
BMC Pediatr
January 2025
Department of Pediatrics, Faculty of Medicine, Fayoum University, Fayoum, Egypt.
Background: Pediatric CNS infections have been identified as a global health problem, associated with an increased death rate and fatal consequences. Pentraxin 3 (PTX3) is an acute-phase mediator that increases in body fluids and plasma throughout inflammation. Our study was designed to assess the diagnostic and prognostic value of cerebrospinal fluid (CSF) PTX3 levels in pediatric patients with different central nervous system (CNS) infections.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!