02 September 1996
Effect of permanent ventricular pacing on ventricular repolarisation on ECG
Jarosław Kaźmierczak, Robert Gil, Krzysztof Przybycień, Marek Kisły, Zdzisława Kornacewicz-JachMed Sci Monit 1996; 2(5): CR558-563 :: ID: 500050
Abstract
In 24 patients (14 males and 10 females, mean age 60±14) we assessed the effect of permanent ventricular pacing on ventricular repolarisation traced on ECG. We studied ventricular repolarisation abnormalities (VRA) such as changes in ST segment, T wave, corrected QT interval (QTc), QT dispersion (QTd) and the width of QRS complex of cardiotopic stimulations. VRA were classified into 6 categories. The measurements were taken prior to permanent pacemaker placement and 48 hours, 7, 14, 28 days and 12 months after insertion. The mean QTc, QTd and the width of QRS did not change significantly throughout the study. Ventricular repolarisation abnormalities first appeared 48 hours after pacemaker implantation to increase on 7-14 day and persist till day 26 when it was possible in 10 out of 24 patients to make the desired changes in programmable parameters (lowering the amplitude or changing the duration of impulse. Among the 10 patients whose pacemakers were reprogrammed we observed decreased VRA in 9 patients, while in 1 patient VRA did not change. Among the remaining 14 patients VRA decreased in 2, did not change in 10 and increased in 1 patient. Conclusions: 1. VRA of cardiotopic stimulations in patients with ventricular pacemakers are correlated with amplitude and with the stimulating impulse duration and tend to decrease when these parameters are lowered. 2. Permanent ventricular pacing changes the ECG of ventricular repolarisation of cardiotopic stimulations. It does not, however, increases the diversity of repolarisation assessed by QT dispersion.
Keywords: permanent pacing, ventricular repolarisation abnormalities (VRA), QT interval
Editorial
01 May 2024 : Editorial
Editorial: First Regulatory Approval for Adoptive Cell Therapy with Autologous Tumor-Infiltrating Lymphocytes (TILs) – Lifileucel (Amtagvi)DOI: 10.12659/MSM.944927
Med Sci Monit 2024; 30:e944927
In Press
11 Mar 2024 : Clinical Research
Enhancement of Frozen-Thawed Human Sperm Quality with Zinc as a Cryoprotective AdditiveMed Sci Monit In Press; DOI: 10.12659/MSM.942946
12 Mar 2024 : Database Analysis
Risk Factors of Age-Related Macular Degeneration in a Population-Based Study: Results from SHIP-TREND-1 (St...Med Sci Monit In Press; DOI: 10.12659/MSM.943140
12 Mar 2024 : Clinical Research
Preoperative Blood Transfusion Requirements for Hemorrhoidal Severe Anemia: A Retrospective Study of 128 Pa...Med Sci Monit In Press; DOI: 10.12659/MSM.943126
12 Mar 2024 : Clinical Research
Tissue Inhibitors of Metalloproteinase 1 (TIMP-1) and 3 (TIMP-3) as New Markers of Acute Kidney Injury Afte...Med Sci Monit In Press; DOI: 10.12659/MSM.943500
Most Viewed Current Articles
17 Jan 2024 : Review article
Vaccination Guidelines for Pregnant Women: Addressing COVID-19 and the Omicron VariantDOI :10.12659/MSM.942799
Med Sci Monit 2024; 30:e942799
14 Dec 2022 : Clinical Research
Prevalence and Variability of Allergen-Specific Immunoglobulin E in Patients with Elevated Tryptase LevelsDOI :10.12659/MSM.937990
Med Sci Monit 2022; 28:e937990
16 May 2023 : Clinical Research
Electrophysiological Testing for an Auditory Processing Disorder and Reading Performance in 54 School Stude...DOI :10.12659/MSM.940387
Med Sci Monit 2023; 29:e940387
01 Jan 2022 : Editorial
Editorial: Current Status of Oral Antiviral Drug Treatments for SARS-CoV-2 Infection in Non-Hospitalized Pa...DOI :10.12659/MSM.935952
Med Sci Monit 2022; 28:e935952