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Escape Rhythm (escape + rhythm)
Selected AbstractsAccelerated Junctional Escape Rhythm with Retrograde P Waves Through Alternating Slow and Fast PathwaysJOURNAL OF CARDIOVASCULAR ELECTROPHYSIOLOGY, Issue 7 2001ALAN ACKERMANN D.O. [source] Dynamic Effects of Exercise and Different Escape Rhythms on the Supernormal Period of an Accessory PathwayJOURNAL OF CARDIOVASCULAR ELECTROPHYSIOLOGY, Issue 6 2007JEREMY J. LUM M.D. Spontaneous conduction during the supernormal period (SNP) of accessory pathways (AP) is rare and observed only during atrio-ventricular block (AVB). The effect of exercise and different escape rhythms on the SNP is unknown. We evaluated these factors on the SNP of a para-Hisian AP after a failed ablation complicated by AVB. The SNP onset and duration were later and longer during paced versus junctional rhythm. Exercise caused linear shortening of the SNP that was directly related to junctional cycle length. The SNP is a dynamic window shifting in parallel with AP refractoriness and affected by exercise and type of escape rhythm. [source] Atropine for prevention of cardiac dysrhythmias in patients with hepatocellular carcinoma undergoing percutaneous ethanol instillation: a randomized, placebo-controlled, double-blind trialLIVER INTERNATIONAL, Issue 5 2009Ferlitsch Arnulf Abstract Introduction: Percutaneous ethanol injection (PEI) is an established method in the treatment of hepatocellular carcinoma (HCC). During this procedure, severe cardiac bradyarrhythmias can occur. A preemptive injection of atropine is recommended by professional guidelines to prevent these dysrhythmias. Methods: Patients scheduled for PEI were randomized 1:1 to receive 0.5 mg atropinehydrochloride or placebo in a double-blind randomized placebo-controlled trial. Patients were electrocardiogram monitored, which were then analysed by an experienced rhythmologist blinded to the treatment arm. Results: Patients in 40 consecutive PEI sessions were included. During PEI, a significant reduction in the mean heart rate (>15%) was seen in 15% of patients in the placebo group (median, ,37%; range, 15,41%) and in 25% of patients receiving atropine (median, ,20%; range, 16,64%). There was no significant difference between both groups. During PEI, two patients (10%) in the placebo group developed a sinuatrial block (SAB). Four patients in the atropine group (20%) developed arrhythmias: three patients SAB, one of them with escape rhythm and one AV-bundle block. Blood ethanol levels post-PEI, amount of instilled ethanol, tumour size and location were not different between patients with or without dysrhythmias. Conclusion: In this randomized-controlled trial, a preprocedure atropine injection did not prevent the occurrence of bradyarrhythmias. Prophylactic use of atropine might not be effective and therefore cannot be recommended as a routine procedure. Clinicaltrials.gov-identifier: NCT00575523. [source] Dynamic Effects of Exercise and Different Escape Rhythms on the Supernormal Period of an Accessory PathwayJOURNAL OF CARDIOVASCULAR ELECTROPHYSIOLOGY, Issue 6 2007JEREMY J. LUM M.D. Spontaneous conduction during the supernormal period (SNP) of accessory pathways (AP) is rare and observed only during atrio-ventricular block (AVB). The effect of exercise and different escape rhythms on the SNP is unknown. We evaluated these factors on the SNP of a para-Hisian AP after a failed ablation complicated by AVB. The SNP onset and duration were later and longer during paced versus junctional rhythm. Exercise caused linear shortening of the SNP that was directly related to junctional cycle length. The SNP is a dynamic window shifting in parallel with AP refractoriness and affected by exercise and type of escape rhythm. [source] | ||||||||||