Medtronic Gives Heart Docs Something to 'MARVEL ' At

Study results published this week in the Journal of the American College of Cardiology: Clinical Electrophysiology show that an investigational set of algorithms in Medtronic's Micra transcatheter pacing system (TPS) significantly improves synchrony and cardiac function in patients with impaired electrical conduction between the chambers of the heart, a condition called atrioventricular (AV) block. The results from the MARVEL 2 study are expected to be presented Nov. 16 at the American Heart Association's annual scientific sessions. Medtronic said that based on positive results from both its MARVEL and MARVEL 2 studies, the company has submitted a PMA supplement to expand the indicated population of the Micra pacemaker to patients with AV block and normal sinus rhythm. Touted as the world's smallest pacemaker, Micra was the first leadless pacemaker to win FDA approval in 2016. “While leadless pacing has many advantages compared to traditional pacemakers - including fewer infection-related complications - leadless pacemakers are currently only capable of single-chamber ventricular sensing and pacing,” said Larry Chinitz, MD, a co-principal investigator of the MARVEL 2 study, a cardiac electrophysiologist, and director of New York University's Langone’s Heart Rhythm Center. “Our investigation shows that accelerometer-based atrial-sensin...
Source: MDDI - Category: Medical Devices Authors: Tags: Implants Source Type: news

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In conclusion, T2D impairs vascular function by dysregulated autophagy. Therefore, autophagy could be a potential target for overcoming diabetic microvascular complications. To What Degree Does Loss of Skeletal Muscle with Age Contribute to Immunosenescence? https://www.fightaging.org/archives/2019/11/to-what-degree-does-loss-of-skeletal-muscle-with-age-contribute-to-immunosenescence/ Sarcopenia, the progressive loss of muscle mass and strength, is characteristic of aging. A perhaps surprisingly large fraction of the losses can be averted by strength training, but there are nonetheless inexorable process...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
ConclusionsFor patients with hypertension, the presence in the baseline electrocardiogram of complete left bundle branch block or a pattern of ventricular overload identifies a population at increased cardiovascular risk.ResumenObjetivoLa hipertrofia ventricular izquierda es el marcador de daño de órgano diana más frecuente en la hipertensión arterial. Habitualmente se realiza un ECG para su identificación. El objetivo de este trabajo es analizar la utilidad pronóstica de otras alteraciones electrocardiográficas en pacientes hipertensos, más allá de la hipertro...
Source: Revista Clinica Espanola - Category: Internal Medicine Source Type: research
It’s one of the goals of digital medicine: you wear a device on your wrist that constantly monitors aspects of your health, and if anything is off, it sends you an alert. That’s your cue to connect with your doctor or get a more thorough checkup to head off any potentially serious problems down the road. That’s the idea behind the Heart app on the Apple Watch, which can monitor heart pulse patterns, and detect abnormalities, which could indicate a condition called atrial fibrillation, or AFib. The irregular heart beats characteristic of AFib could lead to stroke, blood clots and heart failure. Researcher...
Source: TIME: Health - Category: Consumer Health News Authors: Tags: Uncategorized Apple watch heart Source Type: news
ConclusionsThe prevalence of AHF protocols is rather high but the contents seem to vary. Difficulty of diagnosing suspected AHF seems to be moderate compared with other pre ‐hospital conditions.
Source: ESC Heart Failure - Category: Cardiology Authors: Tags: Original Research Article Source Type: research
ConclusionsA high incidence of CV events, with no apparent correlation with CV comorbidities or risk factors, was observed. Prompt identification and treatment of CV events allowed most pts to complete the treatment with FP.Clinical trial identificationNCT02665312.Legal entity responsible for the studyThe authors.FundingHas not received any funding.DisclosureM. Aglietta: Advisory / Consultancy: Bristol-Myers Squibb; Advisory / Consultancy: Merck; Advisory / Consultancy: Roche. All other authors have declared no conflicts of interest.
Source: Annals of Oncology - Category: Cancer & Oncology Source Type: research
ConclusionThe RhythmPad digital health device and its automated diagnostic report were highly accurate in detecting atrial fibrillation when compared to a standard 12 ‐lead electrocardiogram.This article is protected by copyright. All rights reserved
Source: Pacing and Clinical Electrophysiology : PACE - Category: Cardiology Authors: Tags: ELECTROPHYSIOLOGY Source Type: research
Publication date: Available online 1 August 2019Source: The LancetAuthor(s): Zachi I Attia, Peter A Noseworthy, Francisco Lopez-Jimenez, Samuel J Asirvatham, Abhishek J Deshmukh, Bernard J Gersh, Rickey E Carter, Xiaoxi Yao, Alejandro A Rabinstein, Brad J Erickson, Suraj Kapa, Paul A FriedmanSummaryBackgroundAtrial fibrillation is frequently asymptomatic and thus underdetected but is associated with stroke, heart failure, and death. Existing screening methods require prolonged monitoring and are limited by cost and low yield. We aimed to develop a rapid, inexpensive, point-of-care means of identifying patients with atrial ...
Source: The Lancet - Category: General Medicine Source Type: research
In conclusion, the PULVAD unloads the failing LV, optimizes LV mechanoenergetics, and augments coronary blood flow. These salutary effects of short-term PULVAD support provide the foundation for long-term testing.
Source: ASAIO Journal - Category: Medical Devices Tags: Adult Circulatory Support Source Type: research
Joong-Goo Kim1,2, Han-Bin Lee2 and Sang-Beom Jeon2* 1Department of Neurology, Jeju National University Hospital, Jeju, South Korea 2Department of Neurology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea Objectives: The use of dexmedetomidine and ketamine (DEX–KET) combination for magnetic resonance imaging (MRI) sedation has not been evaluated. We investigated the efficacy and safety of DEX–KET for sedation of patients undergoing MRI of the brain. Methods: This quasi-experimental study was conducted to compare the DEX–KET combination and midazolam for MRI sed...
Source: Frontiers in Neurology - Category: Neurology Source Type: research
Conclusion: These findings limit the possible roles of gene transcriptional changes in previously reported age-dependent pro-arrhythmic electrophysiologial changes observed in Pgc-1β-/- atria to an altered Ca2+-ATPase (Atp2a2) expression. This directly parallels previously reported arrhythmic mechanism associated with p21-activated kinase type 1 deficiency. This could add to contributions from the direct physiological outcomes of mitochondrial dysfunction, whether through reactive oxygen species (ROS) production or altered Ca2+ homeostasis. Introduction Atrial arrhythmias constitute a major public health probl...
Source: Frontiers in Physiology - Category: Physiology Source Type: research
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