BACKGROUND: Many patients with congenital heart disease develop right ventricular (RV) failure due to anatomy and prior therapy. RV problems may include right bundle-branch block (RBBB), volume loading, and chamber enlargement. Because the failing RV may have regional dyskinesis, we hypothesized that resynchronization therapy might augment its performance. METHODS AND RESULTS: We studied 7 patients with RV dysfunction and RBBB, using a predefined pacing protocol. QRS duration, cardiac index (CI), and RV dP/dt were measured in 4 different pacing states. Atrioventricular pacing improved CI and RV dP/dtmax and decreased QRS duration as compared with atrial pacing or sinus rhythm. CONCLUSIONS: Atrioventricular pacing in patients with RBBB and RV dysfunction augments RV and systemic performance. RV resynchronization is a promising novel therapy for patients with RV failure.
BACKGROUND: Many patients with congenital heart disease develop right ventricular (RV) failure due to anatomy and prior therapy. RV problems may include right bundle-branch block (RBBB), volume loading, and chamber enlargement. Because the failing RV may have regional dyskinesis, we hypothesized that resynchronization therapy might augment its performance. METHODS AND RESULTS: We studied 7 patients with RV dysfunction and RBBB, using a predefined pacing protocol. QRS duration, cardiac index (CI), and RV dP/dt were measured in 4 different pacing states. Atrioventricular pacing improved CI and RV dP/dtmax and decreased QRS duration as compared with atrial pacing or sinus rhythm. CONCLUSIONS:Atrioventricular pacing in patients with RBBB and RV dysfunction augments RV and systemic performance. RV resynchronization is a promising novel therapy for patients with RV failure.
Authors: C Paech; I Dähnert; F T Riede; R Wagner; T Kister; K Nieschke; F Wagner; R A Gebauer Journal: Pediatr Cardiol Date: 2017-06-19 Impact factor: 1.655
Authors: Santanu Guha; S Harikrishnan; Saumitra Ray; Rishi Sethi; S Ramakrishnan; Suvro Banerjee; V K Bahl; K C Goswami; Amal Kumar Banerjee; S Shanmugasundaram; P G Kerkar; Sandeep Seth; Rakesh Yadav; Aditya Kapoor; Ajaykumar U Mahajan; P P Mohanan; Sundeep Mishra; P K Deb; C Narasimhan; A K Pancholia; Ajay Sinha; Akshyaya Pradhan; R Alagesan; Ambuj Roy; Amit Vora; Anita Saxena; Arup Dasbiswas; B C Srinivas; B P Chattopadhyay; B P Singh; J Balachandar; K R Balakrishnan; Brian Pinto; C N Manjunath; Charan P Lanjewar; Dharmendra Jain; Dipak Sarma; G Justin Paul; Geevar A Zachariah; H K Chopra; I B Vijayalakshmi; J A Tharakan; J J Dalal; J P S Sawhney; Jayanta Saha; Johann Christopher; K K Talwar; K Sarat Chandra; K Venugopal; Kajal Ganguly; M S Hiremath; Milind Hot; Mrinal Kanti Das; Neil Bardolui; Niteen V Deshpande; O P Yadava; Prashant Bhardwaj; Pravesh Vishwakarma; Rajeeve Kumar Rajput; Rakesh Gupta; S Somasundaram; S N Routray; S S Iyengar; G Sanjay; Satyendra Tewari; Sengottuvelu G; Soumitra Kumar; Soura Mookerjee; Tiny Nair; Trinath Mishra; U C Samal; U Kaul; V K Chopra; V S Narain; Vimal Raj; Yash Lokhandwala Journal: Indian Heart J Date: 2018-06-08
Authors: Rakesh K Pai; Anita Kedia; Pamela Y F Hsu; Joanna Holmes; Rosella Nawman; M Beth Goens; Fred M Kusumoto Journal: J Interv Card Electrophysiol Date: 2004-08 Impact factor: 1.900