Pacing and clinical electrophysiology : PACE
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Tachycardia is a prominent feature of thyrotoxicosis. We present an unusual case of Graves' thyrotoxicosis presenting as profound symptomatic bradycardia.
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Pacing Clin Electrophysiol · Jun 2006
Atrioventricular delay optimization by doppler-derived left ventricular dP/dt improves 6-month outcome of resynchronized patients.
Atrioventricular (AV) interval optimization, ensuring the best filling and the abolishment of presystolic mitral regurgitation, is crucial for the efficacy of cardiac resynchronization therapy (CRT). The methods proposed to optimize AV delay have many limitations. The maximum left ventricular pressure derivative (LV dP/dt)--an index of cardiac performance--could provide a clue for AV optimization. DP/dt can be calculated by the Doppler curve of mitral regurgitation jet and it is related to micromanometer-derived dP/dt. ⋯ Doppler-derived dP/dt for AV delay optimization determines better functional class and LVEF at 6 months follow-up relative to an empiric AV delay program.
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Pacing Clin Electrophysiol · May 2006
Case ReportsPacemaker lead endocarditis caused by Staphylococcus hominis.
Infective endocarditis related to pacemaker is a rare but serious condition in permanent venous tracing. A 65-year-old man was admitted to the hospital with high fever and chills. A DDD pacemaker had been implanted via the right subclavian vein because of sick sinus syndrome 6 years earlier. ⋯ Blood cultures grew Staphylococcus hominis. The patient was treated with antibiotics and operated on after the acute phase of the illness had subsided. We hereby report a case of lead endocarditis caused by S. hominis in a patient with pacemaker, which has been rarely reported in the English literature.
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Pacing Clin Electrophysiol · Apr 2006
Randomized Controlled TrialA randomized clinical trial of continuous flow nitrous oxide and nalbuphine infusion for sedation of patients during radiofrequency atrial flutter ablation.
In patients with common atrial flutter (CAF), radiofrequency ablation (RFA) causes discomfort. Patients undergoing RFA often feel pain which is difficult to control as the mechanisms are unclear. ⋯ Inhalation of a (50% N2O/50% O2) mixture during RF ablation for atrial flutter is a safe and efficient way to reduce anxiety and discomfort caused by RF applications.
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Pacing Clin Electrophysiol · Apr 2006
Evaluation of electromagnetic interference of GSM mobile phones with pacemakers featuring remote monitoring functions.
The aim of this study was to evaluate whether global system for mobile communication (GSM) cellular phones can affect the home monitoring (HM) function implemented in last generation pacemakers (PM). ⋯ Our data show that HM function does not call for specific restrictions on the use of GSM cellular phones.