Results 171 to 180 of about 51,114 (209)
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Cardiac troponin-I concentrations in dogs with bradyarrhythmias before and after artificial pacing

Journal of Veterinary Cardiology, 2010
To quantify cardiac troponin-I (cTnI) concentration in dogs with symptomatic bradyarrhythmias before and after artificial pacing and to correlate cTnI concentration with diagnosis, echocardiographic parameters, serology, and outcome.Medical records from the University of Pennsylvania from 2006 to 2009 were reviewed, and 14 dogs with cTnI assay results ...
Chloe Wormser   +5 more
openaire   +3 more sources

Long-Term Artificial Cardiac Pacing: Experience in Adults with Heart Block

JAMA: The Journal of the American Medical Association, 1963
It is with this last group that I am concerned, though the techniques we use are also applicable to the second group. The ventricle when independent of the atrium contracts at its inherent rate, usually from 25 to 45 beats a minute, and this slow rate ...
A. Siddons
openaire   +2 more sources

Constant DI pacing suppresses cardiac alternans formation in numerical cable models.

Chaos, 2017
Cardiac repolarization alternans describe the sequential alternation of the action potential duration (APD) and can develop during rapid pacing. In the ventricles, such alternans may rapidly turn into life risking arrhythmias under conditions of spatial ...
S. Zlochiver, C. Johnson, E. Tolkacheva
semanticscholar   +1 more source

Permanent Left Ventricular Pacing from the Great Cardiac Vein of a Patient with Artificial Tricuspid and Mitral Valves

Angiology, 2000
Transvenous placement of a right ventricular pacemaker lead through the artificial tricuspid valve is a known contraindication, and in this situation, epicardial pacemaker implantation is the procedure of choice. However, permanent pacemaker implantation is a subject for debate when the use of the epicardial route is impossible.
Kenan Övünç   +2 more
openaire   +3 more sources

Ventricular synchrony in artificial cardiac pacing: The role of the helical myocardium and fulcrum in the electromechanical coupling of the heart

2023
About 30% of patients with Heart Failure (HF) have wide QRS complexes. In left bundle branch block (LBBB), the electromechanical activation sequence in the Left Ventricle (LV) is asynchronous with deterioration of pump function, higher frequency of hospitalizations and mortality.
Alejandro Ventura   +2 more
openaire   +1 more source

[Restoration of effective artificial cardiac pacing by isoproterenol].

Harefuah, 1992
Since the pacing threshold of artificial pacemakers sometimes increases and causes ineffective pacing, emergency restoration of cardiac pacing may occasionally be required. In such situations sympathomimetic agents, such as isoproterenol, increase excitability and lower threshold.
A, Friedensohn   +2 more
openaire   +1 more source

[A randomized controlled trial of rapid artificial cardiac pacing in thoracic endovascular aortic repair].

Zhonghua yi xue za zhi, 2012
To compare the safety, efficacy and their impact on stent graft positioning between rapid artificial cardiac pacing induced hypotension and sodium nitroprusside induced hypotension during thoracic endovascular aortic repair (TEVAR).From September 2007 to February 2009, a randomized controlled trial as approved by the Ethics Committee of our hospital ...
Wen-hui, Huang   +6 more
openaire   +1 more source

[Arterial hypotension induced by artificial cardiac pacing under general anaesthesia (author's transl)].

Anesthesie, analgesie, reanimation, 1982
A case of haemodynamic decompensation is reported in a patient with a sick-sinus syndrome on a demand cardiac pacemaker, under-going surgery under general anaesthesia. While systemic arterial blood pressure showed adequate stability under the patient's own sinus drive, it consistently fell by 15 to 20 p. cent when artificial pacing was established. The
L, Quintin, M N, Abou-Madi, D, Trop
openaire   +1 more source

A Nanozyme‐Based Artificial Peroxisome Ameliorates Hyperuricemia and Ischemic Stroke

Advanced Functional Materials, 2021
Juqun Xi, Kelong Fan, Li-ming Wang
exaly  

Transparent and Flexible Inorganic Perovskite Photonic Artificial Synapses with Dual‐Mode Operation

Advanced Functional Materials, 2021
Tsung-chin Cheng   +2 more
exaly  

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