Results 101 to 110 of about 1,373,083 (370)

Diastolic And Systolic Right Ventricular Dysfunction Precedes Left Ventricular Dysfunction In Patients Paced From Right Ventricular Apex [PDF]

open access: yes, 2006
Background: Cardiac dysfunction after right ventricular (RV) apical pacing is well known but its extent, time frame of appearance and individual effect on left ventricular (LV), RV systolic and diastolic parameters has not evaluated in a systematic ...
Bansal, Sandeep   +7 more
core  

End-of-life Management of Leadless Cardiac Pacemaker Therapy.

open access: yesArrhythmia & Electrophysiology Review, 2017
The clinically available leadless pacemakers for patients with a single-chamber pacing indication have shown to be safe and effective. However, the optimal end-of-life strategy of this novel technique is undefined.
N. Beurskens, F. Tjong, R. Knops
semanticscholar   +1 more source

New Concepts in Pacemaker Syndrome [PDF]

open access: yes, 2004
After implantation of a permanent pacemaker, patients may experience severe symptoms of dyspnea, palpitations, malaise, and syncope resulting from pacemaker syndrome.
Estes, Mark NA III   +2 more
core  

In vivo toxic and lethal cardiorespiratory effects of a synthetic quaternary ammonium salt derivative of haloperidol in mice

open access: yesAnimal Models and Experimental Medicine, EarlyView.
Hematoxylin–eosin (H&E) stains of the heart, liver, lung, and kidney show acute toxicity. Abstract Background To investigate the toxicity of N‐n‐butyl haloperidol iodide (F2), a quaternary ammonium salt derivative of haloperidol, in mice for potential therapeutic purposes. Methods The acute median lethal dose (LD50) of F2 was determined using the Bliss
Jilin Liao   +6 more
wiley   +1 more source

Involvement of cyclic AMP in multiple, excitatory actions of biogenic amines on the cardiac ganglion of the horseshoe crab Limulus polyphemus [PDF]

open access: yes, 1990
Cyclic AMP appears to be involved in several excitatory actions of amines on neurones of the Limulus cardiac ganglion. Amines selectively increase levels of cardiac ganglion cyclic AMP with a magnitude and time course similar
Groome, J. R., Watson, Winsor H., III
core   +1 more source

Towards Polymer Composite‐Based Transient Electronic Systems

open access: yesAdvanced NanoBiomed Research, EarlyView.
Biodegradable electronic systems are gaining attention for implantable biomedical applications, targeting disease treatment and lifespan extension. This review covers advances in biocompatible, biodegradable polymer composites using synthetic and natural polymers with conductive, semiconductive, and insulating fillers.
Gwan‐Jin Ko   +5 more
wiley   +1 more source

Identifying atrial arrhythmias versus pacing-induced rhythm disorders with state-of-the-art cardiac implanted devices

open access: yesJournal of Arrhythmia, 2014
Repetitive non-reentrant ventriculo-atrial synchrony (RNRVAS) is a pacemaker-induced arrhythmia that must be distinguished from atrial fibrillation (AF). Pacemaker-induced arrhythmias are commonly detected as atrial high rate episodes (AHRE) by implanted
Ritsuko Kohno, MD, PhD   +2 more
doaj   +1 more source

Pacemaker Prevention Therapy in Drug–refractory Paroxysmal Atrial Fibrillation: Reliability of Diagnostics and Effectiveness of Prevention Pacing Therapy in Vitatron™ Selection® device [PDF]

open access: yes, 2006
Introduction. Atrial fibrillation (AF), the most common and rising disorder of cardiac rhythm, is quite difficult to control and/or to treat. Non pharmacological therapies for AF may involve the use of dedicated pacing algorithms to detect and prevent ...
Dell’Orto, Simonetta   +4 more
core   +2 more sources

Review of the anatomical basis for predicting plutonium alpha particle radiation induced osteogenic cancers

open access: yesThe Anatomical Record, EarlyView.
Abstract Plutonium was discovered and first synthesized in the early 1940's. Several isotopes of plutonium are used in nuclear technologies, 238Pu for heat generation and 239Pu for energy production and weapons. Both isotopes emit alpha particles, which pose a significant radiation hazard when incorporated into the body.
Scott C. Miller
wiley   +1 more source

Spontaneous thought characteristics are differentially related to heightened negative affect versus blunted positive affect in adolescents: An experience sampling study

open access: yesJCPP Advances, Volume 2, Issue 4, December 2022., 2022
In this study, one–hundred and sixteen adolescents completed ecological momentary assessment (EMA) surveys assessing current positive and negative affect (PA and NA) and dimensions of spontaneous thought. Characteristics of spontaneous thought—including temporal orientation, self–referential quality, and task–relatedness—were differentially related to ...
Christian A. Webb   +5 more
wiley   +1 more source

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