INTRODUCTION Permanent pacemaker implantation is available in Nigeria. There is however no national registry or framework for pacemaker data collection. A pacemaker database has been developed in our institution and the results are analyzed in this study. METHODS The study period was between January 2008 and December 2012. Patient data was extracted from a prospectively maintained database wh...

OBJECTIVES We evaluated the incidence, predictors, and treatment of pacemaker syndrome in patients with sinus node dysfunction treated with ventricular-based (VVIR) pacing in the Mode Selection Trial (MOST). BACKGROUND Pacemaker syndrome, or intolerance to VVIR pacing, consists of cardiovascular signs and symptoms induced by VVIR pacing. METHODS The definition of pacemaker syndrome required...

AIM To investigate the effects of a water extract of Hwangryunhaedok-tang (HHTE) on the pacemaker potentials of mouse interstitial cells of Cajal (ICCs). METHODS We dissociated ICCs from small intestines and cultured. ICCs were immunologically identified using an anti-c-kit antibody. We used the whole-cell patch-clamp configuration to record the pacemaker potentials generated by cultured ICCs...

Chest wall electrical stimuli, too weak to affect the heart, act as electrical signals to an implanted ventricular-inhibited (QRS blocking) demand pacemaker which interprets them as originating from the heart and consequently responds according to its specifications. Rapid external stimulation permits diagnostic interpretation of the spontaneous electrocardiogram by completely inactivating the ...

A rule-based expert system has been proposed that will assist clinicians in the often difficult task of analyzing multi-channel pacemaker electrocardiograms (ECGs). Analysis of the pacemaker ECGs is important to the follow-up evaluation of patients with implanted pacemakers. Because of the complexity and variability of pacemaker algorithms, diagnosis of pacemaker ECGs is often considerably more...

Currently, most of the time spent caring for the patients with permanent pacemaker will be concerned with evaluating the function of the previously implanted pacing system. Pacing system malfunction can be secondary to pacemaker circuitry failure or to lead dysfunction. Various tools are available to help evaluation of the pacing system malfunction, including physical examination, standard 12-l...

Runaway pacemaker results from pacemaker malfunction and is characterized by sudden increases in the stimulus rate above the set upper rate limit of the pacemaker. Here we report the case of a patient with wide QRS complex tachycardia who was admitted to the emergency unit and diagnosed with runaway pacemaker.

Permanent cardiac-pacemaker therapy is widely recognized as beneficial in the treatment of various types of symptomatic bradycardia. However, the seasonal distribution of pacemaker implantation has never been discussed. The purpose of this study was to investigate the seasonal distribution of pacemaker implantation in a large population of patients with symptomatic bradycardia. The study popula...

conclusions mothers with sle should be screened and closely followed up during pregnancy for the development of fetal atrioventricular (av) block. case presentation a term infant with fetal bradycardia, detected at the 23rd gestational age, was diagnosed with chb due to nls and was successfully treated with a permanent epicardial pacemaker. the patient was reported here due to rarity of the pro...