Results 201 to 210 of about 8,772 (242)
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Sleeping Threshold Change Causing Failure of Artificial Cardiac Pacing
JAMA: The Journal of the American Medical Association, 1971To the Editor.— Along with environmental, metabolic, and pharmacologic influences on artificial cardiac pacing, important threshold changes have been reported to occur incident to changes in physical activity. 1 Clinically evident interruption of pacing as the result of these influences has largely been reported as a result of drug administration. 2,3
J M, Somerndike +3 more
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Medical and physiological considerations in the use of artificial cardiac pacing. Part I
American Heart Journal, 1968Abstract This review has been concerned with medical and physiological considerations in the clinical use of cardiac pacing. Certain problems were selected for discussion and the relevant pathology and pathophysiology treated in some depth. Particular attention was given to the Stokes-Adams syndrome, heart block complicating acute myocardial ...
E M, Mcnally +2 more
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, 2015 Cardiac troponin-I concentrations in dogs with bradyarrhythmias before and after artificial pacing
Journal of Veterinary Cardiology, 2010To 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 ...
Dennis J, Trafny +5 more
openaire +2 more sources
Annals of Emergency Medicine, 1986
Clinically, countershock of ventricular fibrillation (VF) may result in asystole or a pulseless rhythm in more than 50% of attempts. We conducted a study to assess the effects of immediate artificial pacing, CPR, and adrenergic drug therapy in the management of postcountershock pulseless rhythms. Thirty-four episodes of VF followed by countershock were
J T, Niemann +5 more
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Clinically, countershock of ventricular fibrillation (VF) may result in asystole or a pulseless rhythm in more than 50% of attempts. We conducted a study to assess the effects of immediate artificial pacing, CPR, and adrenergic drug therapy in the management of postcountershock pulseless rhythms. Thirty-four episodes of VF followed by countershock were
J T, Niemann +5 more
openaire +2 more sources
[Restoration of effective artificial cardiac pacing by isoproterenol].
Harefuah, 1992Since 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
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
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
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.
M K, Batur, E, Akgül, K, Ovünç
openaire +2 more sources
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.
M K, Batur, E, Akgül, K, Ovünç
openaire +2 more sources
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
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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
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
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