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https://www.readbyqxmd.com/read/29544442/therapy-optimization-in-patients-with-heart-failure-the-role-of-the-wearable-cardioverter-defibrillator-in-a-real-world-setting
#1
Susanne Röger, Stefanie L Rosenkaimer, Anna Hohneck, Siegfried Lang, Ibrahim El-Battrawy, Boris Rudic, Erol Tülümen, Ksenija Stach, Jürgen Kuschyk, Ibrahim Akin, Martin Borggrefe
BACKGROUND: The wearable cardioverter-defibrillator (WCD) has emerged as a valuable tool to temporarily protect patients at risk for sudden cardiac death (SCD). The aim of this study was to determine the value of the WCD for therapy optimization of heart failure patients. METHODS: One hundred five consecutive patients that received WCD between 4/2012 and 9/2016 were included in the study. All patients were followed for clinical outcome and echocardiographic parameters during WCD therapy and had continued follow-up after WCD therapy, irrespective of subsequent implantable cardioverter-defibrillator (ICD) implantation...
March 15, 2018: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/29490361/a-pilot-study-to-investigate-the-relationship-between-interaural-differences-in-temporal-bone-anatomy-and-normal-variations-in-caloric-asymmetry
#2
David Carpenter, David Kaylie, Erin Piker, Dennis Frank-Ito
Purpose: This study assesses interaural differences in temporal bone anatomy in subjects with normal caloric findings. Method: Eligible patients included those referred to the Duke University Medical Center otology clinic complaining of dizziness, with a head computed tomography scan and caloric stimulation results within normal ranges (inter-ear difference ≤ 10% or < 25% unilateral weakness). Three-dimensional reconstructions of computed tomography scans in 11 patients were used to calculate the surface area and volume of lateral semicircular canals (LSCCs), mastoid airspaces, mastoid bones, and internal auditory canal diameter and circumference...
March 8, 2018: American Journal of Audiology
https://www.readbyqxmd.com/read/29445060/clinical-usefulness-of-wearable-cardioverter-defibrillator-wcd-and-current-understanding-of-its-clinical-indication-in-japan
#3
Shinichi Niwano, Yukio Sekiguchi, Yosuke Ishii, Yuki Iwasaki, Ritsushi Kato, Hideo Okamura, Masahiko Takagi, Takashi Kurita, Takashi Nitta
Prevention of sudden cardiac death (SCD) has become an important issue in today's cardiovascular field, together with various developments in secondary prevention of basic cardiac diseases. The importance of the implantable cardioverter defibrillator (ICD) is now widely accepted because it has exhibited significant improvement in patients' prognoses in ischemic and non-ischemic cardiovascular diseases. However, there is an unignorable gap between the ICD indication in the guidelines and real-world high-risk patients for SCD, especially in the acute recovery phase of cardiac injury...
February 14, 2018: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/29277221/wearable-cardioverter-defibrillator-the-lifevest-device-design-limitations-and-areas-of-improvement
#4
Manyoo Agarwal, Dennis Narcisse, Nader Khouzam, Rami N Khouzam
Sudden cardiac death is a potentially fatal clinical event demanding use of emergent intervention such as defibrillation. Over the last 1 decade, development of devices such as implantable and wearable cardioverter defibrillators (WCD) has provided new avenues in the management of sudden cardiac death. Several clinical studies have commented on the therapeutic and preventive aspect of WCD, however, literature describing the device functioning and limitations is limited. In this review study, we describe the technical aspects and limitations of WCD with a focus on identifying potential areas of improvement and framework for future research studies...
February 2018: Current Problems in Cardiology
https://www.readbyqxmd.com/read/29234842/-patients-with-a-wearable-cardioverter-defibrillator-wcd-prescription-function-and-rehabilitation-support
#5
REVIEW
A Schlitt, M Guha, M Noutsias, H H Klein, H U Klein
Assessment of a permanent risk of life-threatening ventricular arrhythmia in patients with severely reduced left ventricular ejection fraction (LVEF <35%), e. g. after myocarditis, dilated cardiomyopathy, acute myocardial infarction, in patients with postpartum cardiomyopathy or implantable cardioverter-defibrillator (ICD) and cardiac resynchronization treatment plus defibrillator (CRT-D) infection with temporary explantation of the system is a medical challenge. This is time-consuming and unsafe because life-threatening ventricular arrhythmias may occur during the time of risk assessment...
December 12, 2017: Herz
https://www.readbyqxmd.com/read/29180909/wearable-cardioverter-defibrillators-for-the-prevention-of-sudden-cardiac-arrest-a-health-technology-assessment-and-patient-focus-group-study
#6
Sabine Ettinger, Michal Stanak, Piotr Szymański, Claudia Wild, Romana Tandara Haček, Darija Erčević, Renata Grenković, Mirjana Huić
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® for rapid relative effectiveness assessment...
2017: Medical Devices: Evidence and Research
https://www.readbyqxmd.com/read/29178898/the-wearable-cardioverter-defibrillator-as-a-bridge-to-reimplantation-in-patients-with-icd-or-crt-d-related-infections
#7
L Castro, S Pecha, M Linder, J Vogler, N Gosau, C Meyer, S Willems, H Reichenspurner, S Hakmi
BACKGROUND: The approach to treat device infection in patients with implantable cardioverter defibrillator (ICD) or cardiac resynchronization therapy defibrillator (CRT-D) is a challenging procedure. Optimal treatment is complete extraction of the infected device. To protect these patients from sudden cardiac arrest while waiting for reimplantation and to avoid recurrent infection, a wearable cardioverter defibrillator (WCD) seems to be a valuable solution. Therefore, we investigated the management and outcome of patients with ICD or CRT-D infections using the WCD as a bridge to re-implantation after lead extraction procedures...
November 25, 2017: Journal of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/29155999/high-incomplete-skeletal-muscle-fatty-acid-oxidation-explains-low-muscle-insulin-sensitivity-in-poorly-controlled-t2d
#8
Timothy P Gavin, Jacob M Ernst, Hyo-Bum Kwak, Sarah E Caudill, Melissa A Reed, Ron T Garner, Yaohui Nie, Jessica A Weiss, Walter J Pories, Moahad Dar, Chien-Te Lin, Monica J Hubal, P Darrell Neufer, Shihuan Kuang, G Lynis Dohm
Aim: We investigated if skeletal muscle insulin sensitivity was different between well (WCD) and poorly (PCD) controlled T2D and if the difference was associated with differences due to mitochondrial respiratory function. Methods: Vastus lateralis muscle mitochondrial respiration, mitochondrial content, mitochondrial enzyme activity, and fatty acid oxidation (FAO) were measured. Insulin sensitivity (SI) and the acute response to glucose (AIRg) were calculated by MINMOD analysis from glucose and insulin obtained during a modified, frequently sampled, intravenous glucose tolerance test...
November 15, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29153771/outcome-of-patients-with-in-hospital-ventricular-tachycardia-and-ventricular-fibrillation-arrest-while-using-a-wearable-cardioverter-defibrillator
#9
Kenneth A Ellenbogen, Chingping Wan, David M Shavelle
In-hospital sudden cardiac arrests occurring during nighttime and weekend hours or within unmonitored hospital areas have been reported to have a poorer outcomes than monitored cardiac arrest. This study sought to assess the outcome of in-hospital ventricular tachycardia (VT) and ventricular fibrillation (VF) arrest by time of day, day of week, and within-hospital location when using a wearable cardioverter defibrillator (WCD). We retrospectively identified and reviewed consecutive in-hospital VT/VF arrests from January 2011 to May 2015 experienced by patients wearing a WCD using the manufacturer's postmarket registry...
January 15, 2018: American Journal of Cardiology
https://www.readbyqxmd.com/read/29124430/oversensing-of-the-wearable-cardioverter-defibrillator-during-bipolar-ventricular-stimulation
#10
Martin Manninger, Tanja Odeneg, Friedrich Fruhwald, Helmut Brussee, Daniel Scherr
The wearable cardioverter defibrillator (WCD) is a temporary treatment option for patients with potentially reversible risk of sudden cardiac death. This case demonstrates a pitfall during WCD usage in a pacemaker-dependent patient as well as a possible solution allowing continuation of WCD therapy. Bipolar stimulation may lead to double counting of the WCD detection algorithm resulting in false alarm or inappropriate therapy.
December 2017: Wiener Klinische Wochenschrift
https://www.readbyqxmd.com/read/29072998/real-world-utilization-and-impact-of-the-wearable-cardioverter-defibrillator-in-a-community-setting
#11
Aditi Naniwadekar, Talal Alnabelsi, Kamal Joshi, Edinrin Obasare, Allan Greenspan, Sumeet Mainigi
INTRODUCTION: The wearable cardioverter-defibrillator (WCD) is used in patients at risk for sudden cardiac death (SCD) but not immediate candidates for intracardiac defibrillator (ICD) implantation. METHODS: We performed a single center retrospective study of patients prescribed WCD upon hospital discharge from January 2002 to October 2015. Clinical characteristics were obtained from the hospital electronic database and device data from Zoll LifeVest database. RESULTS: Of 140 patients, 62% were men, 85...
May 2017: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/29064577/wearable-cardioverter-defibrillators-in-schools-a-guide-for-parents-and-educators
#12
Ashley E Burch, David S Spar, Samuel F Sears
Keeping children safe is a goal for everyone. To stay safe, some children need a wearable cardioverter defibrillator (WCD). WCDs protect individuals who are at risk for life-threatening arrhythmias. The LifeVest® (ZOLL, Pittsburgh, PA, USA) is a WCD that identifies, records, and treats potentially life-threatening abnormal heartbeats, or arrhythmias. The WCD will provide electrical energy to the heart with up to five high-energy shocks if a potentially dangerous cardiac arrhythmia is detected. This type of arrhythmia, if not treated within a short time period (less than 2 minutes), can result in disruption of blood flow to the brain and other vital organs (that is, a sudden cardiac arrest), and death can occur within minutes...
December 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/28993851/usefulness-of-the-wcd-in-patients-with-suspected-tachymyopathy
#13
Julia W Erath, Mate Vamos, Alexander P Benz, Stefan H Hohnloser
AIMS: The wearable cardioverter defibrillator (WCD) is used for temporary protection of patients deemed to be at high risk for sudden death. There is limited experience regarding the clinical development of patients with tachymyopathy. We aimed to evaluate the clinical development of tachymyopathy patients protected with a WCD in a single-center non-randomized patient cohort. METHODS AND RESULTS: We fitted 130 consecutive patients deemed to be at high risk for ventricular tachyarrhythmias with the WCD...
January 2018: Clinical Research in Cardiology: Official Journal of the German Cardiac Society
https://www.readbyqxmd.com/read/28969980/ventricular-arrhythmia-occurrence-and-compliance-in-patients-treated-with-the-wearable-cardioverter-defibrillator-following-percutaneous-coronary-intervention
#14
Jérémie Barraud, Pauline Pinon, Marc Laine, Jennifer Cautela, Morgane Orabona, Linda Koutbi, Johan Pinto, Franck Thuny, Frederic Franceschi, Franck Paganelli, Laurent Bonello, Michaël Peyrol
BACKGROUND: The wearable cardioverter defibrillator (WCD) is a life-saving therapy in patients with high risk of arrhythmic death. We aimed to evaluate ventricular arrhythmia (VA) occurrence rate and compliance with the WCD during the first 90 days following myocardial revascularisation with percutaneous coronary intervention (PCI) in patients with left ventricular ejection fraction (LVEF) <30%. METHODS: From September 2015 to November 2016, clinical characteristics, WCD recordings and compliance data of the aforementioned subset of patients were prospectively collected...
September 25, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28911514/defibrillation-for-ventricular-fibrillation-a-shocking-update
#15
REVIEW
Graham Nichol, Michael R Sayre, Federico Guerra, Jeanne Poole
Cardiac arrest is defined as the termination of cardiac activity associated with loss of consciousness, of spontaneous breathing, and of circulation. Sudden cardiac arrest and sudden cardiac death (SCD) are terms often used interchangeably. Most patients with out-of-hospital cardiac arrest have shown coronary artery disease or symptoms during the hour before the event. Cardiac arrest is potentially reversible by cardiopulmonary resuscitation, defibrillation, cardioversion, cardiac pacing, or treatments targeted at the underlying disease (e...
September 19, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28706588/wearable-cardioverter-defibrillator-bridge-or-alternative-to-implantation
#16
REVIEW
Jeremie Barraud, Jennifer Cautela, Morgane Orabona, Johan Pinto, Olivier Missenard, Marc Laine, Franck Thuny, Franck Paganelli, Laurent Bonello, Michael Peyrol
The implantable cardioverter-defibrillator (ICD) is effective to prevent sudden cardiac death (SCD) in selected patients with heart disease known to be at high risk for ventricular arrhythmia. Nevertheless, this invasive and definitive therapy is not indicated in patients with potentially transient or reversible causes of sudden death, or in patients with temporary contra-indication for ICD placement. The wearable cardioverter defibrillator (WCD) is increasingly used for SCD prevention both in patients awaiting ICD implantation or with an estimated high risk of ventricular arrhythmia though to be transient...
June 26, 2017: World Journal of Cardiology
https://www.readbyqxmd.com/read/28570810/admittance-scanning-for-whole-column-detection
#17
Brian N Stamos, Purnendu K Dasgupta, Shin-Ichi Ohira
Whole column detection (WCD) is as old as chromatography itself. WCD requires an ability to interrogate column contents from the outside. Other than the obvious case of optical detection through a transparent column, admittance (often termed contactless conductance) measurements can also sense changes in the column contents (especially ionic content) from the outside without galvanic contact with the solution. We propose here electromechanically scanned admittance imaging and apply this to open tubular (OT) chromatography...
June 12, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28499628/a-real-world-wearable-cardioverter-defibrillator-experience-very-high-appropriate-shock-rate-in-ischemic-cardiomyopathy-patients-at-a-european-single-center
#18
Thomas Beiert, Robert Malotki, Natalie Kraemer, Florian Stöckigt, Markus Linhart, Georg Nickenig, Jan W Schrickel, René P Andrié
BACKGROUND: The wearable cardioverter defibrillator (WCD) has emerged as a valuable tool to protect patients with increased risk of sudden cardiac death (SCD). We sought to characterize WCD patients and to analyze predictors of ventricular arrhythmia (VA) occurrence and WCD shock delivery. METHODS AND RESULTS: One hundred fourteen patients with WCD use were included in the study. Indications were mainly ischemic cardiomyopathy (ICM; 31.6%), non-ICM (45.6%) and explantation of implantable cardioverter defibrillator due to device infection (11...
April 28, 2017: Journal of Electrocardiology
https://www.readbyqxmd.com/read/28454824/the-impact-of-body-mass-index-on-the-wearable-cardioverter-defibrillator-shock-efficacy-and-patient-wear-time
#19
Chingping Wan, Steven J Szymkiewicz, Helmut U Klein
BACKGROUND: The impact of body mass index (BMI) on the shock efficacy and patient adherence among patients using a wearable cardioverter defibrillator (WCD) is unknown. METHODS: Patients prescribed the WCD between January 1, 2008 and June 1, 2013, who experienced at least one episode of sustained ventricular tachycardia (VT) or ventricular fibrillation (VF) and who received appropriate WCD therapy, were identified within a registry maintained by the manufacturer for regulatory, reimbursement, and administrative purposes...
April 2017: American Heart Journal
https://www.readbyqxmd.com/read/28429542/study-of-the-wearable-cardioverter-defibrillator-in-advanced-heart-failure-patients-swift
#20
Alon Barsheshet, Valentina Kutyifa, Theodora Vamvouris, Arthur J Moss, Yitschak Biton, Leway Chen, Eugene Storozynsky, Chingping Wan, Steven J Szymkiewicz, Ilan Goldenberg
INTRODUCTION: The wearable cardioverter defibrillator (WCD) may allow stabilization until reassessment for an implantable cardioverter defibrillator (ICD) among high-risk heart failure (HF) patients. However, there are limited data on the WCD benefit in the acute decompensated HF setting. METHODS AND RESULTS: The Study of the Wearable Cardioverter Defibrillator in Advanced Heart Failure Patients (SWIFT) was a prospective clinical trial carried out at two medical centers...
April 21, 2017: Journal of Cardiovascular Electrophysiology
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