Incidence and Time Course for Developing Heart Failure Following Dual Chamber Pacemaker Implant in Patients with Complete Atrioventricular Block

2016 ◽  
Vol 22 (8) ◽  
pp. S4
Author(s):  
Faisal M. Merchant ◽  
Michael H. Hoskins ◽  
Dan L. Musat ◽  
Julie B. Prillinger ◽  
Gregory J. Roberts ◽  
...  
Keyword(s):  
Heart Failure ◽  
Atrioventricular Block ◽  
Time Course ◽  
Complete Atrioventricular Block ◽  
Dual Chamber ◽  
Dual Chamber Pacemaker ◽  
Developing Heart ◽  
Complete Atrioventricular

scholarly journals Fetal cardiology in the Czech Republic: current management of prenatally diagnosed congenital heart diseases and arrhythmias

2009 ◽  
pp. S159-S166
Author(s):  
V Tomek ◽  
J Marek ◽  
H Jičínská ◽  
J Škovránek
Keyword(s):  
Heart Failure ◽  
Czech Republic ◽  
Supraventricular Tachycardia ◽  
Atrioventricular Block ◽  
Congenital Heart ◽  
Fetal Mortality ◽  
Ultrasound Screening ◽  
Complete Atrioventricular Block ◽  
The Czech Republic ◽  
Complete Atrioventricular

Reliable diagnosis of congenital heart defects and arrhythmias in utero has been possible since the introduction of fetal echocardiography. The nation-wide prenatal ultrasound screening program in the Czech Republic enabled detection of cardiac abnormities in 1/3 of patients born with any congenital heart disease and up to 83 % of those with critical forms. Prenatal frequency of individual heart anomalies significantly differed from the postnatal frequency. Fetal isolated complete atrioventricular block and supraventricular tachycardia may lead to heart failure and are important causes of fetal mortality. The regression of heart failure was achieved by a conversion to the sinus rhythm in the supraventricular tachycardia and by increase of ventricular rate in the complete atrioventricular block.

Exercise performance in young patients with complete atrioventricular block: the relevance of synchronous atrioventricular pacing

2016 ◽  
Vol 26 (6) ◽  
pp. 1066-1071 ◽  
Author(s):  
M. Cecilia Gonzalez Corcia ◽  
Lorraine Saint Remy ◽  
Sebastien Marchandise ◽  
Stephane Moniotte
Keyword(s):  
Atrioventricular Block ◽  
Exercise Performance ◽  
Maximal Exercise ◽  
Young Patients ◽  
Exercise Stress ◽  
Ventricular Pacing ◽  
Complete Atrioventricular Block ◽  
Dual Chamber ◽  
Arterial Blood ◽  
Complete Atrioventricular

AbstractAt present, there are many pacing strategies for young patients with complete atrioventricular block. The most frequent policy is to attempt placing a dual-chamber system when possible; however, there is a group of patients that is functioning with a non-synchronous ventricular pacing, raising the question of the ideal timing to upgrade their systems. We investigated the exercise performance of a group of children and young adults with complete atrioventricular block and dual-chamber pacemakers in both single- and dual-chamber pacing modalities. A total of 15 patients performed maximal exercise stress testing after programming the VVIR or DDD modes with 2 hours of interval in a double-blind study protocol.Compared with VVIR pacing, DDD pacing resulted in increase in the peak VO2, longer test duration, major increase in the heart rate achieved during peak exercise, decreased systemic non-invasive arterial blood pressure measured at maximal exercise, higher maximal workload, prolongation of the anaerobic threshold timing, and better self-rated performance perception in all the patients.Synchronous atrioventricular pacing contributes to an increase in both the exercise performance and the performance perception in 100% of the patients. This difference contributes to create a sense of “fitness” with repercussions in the overall health, self-esteem, and life quality, as well as encourages youngster to practice sports. Our experience tends to favour upgrading patients’ systems to dual-chamber systems before reaching the adolescent years, even if the centre policy is to prolong as long as possible the epicardial site in order to avoid long years of right ventricular pacing.

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