Echocardiographic assessment of inter and intra ventricular dyssynchrony in heart failure patients with normal QRS duration
Journal Title: MedPulse -International Medical Journal - Year 2018, Vol 5, Issue 10
Abstract
Background: Cardiac resynchronization therapy can improve cardiac function and clinical status in patients with severe heart failure and left bundle branch block. Since in initial studies patients with a wide QRS seemed to benefit the most from biventricular pacing, most of the patients enrolled in these trials had a QRS duration greater than 150 ms. Aim: To assess the prevalence of inter and intraventricular dyssynchrony in heart patients with normal QRS duration irrespective of the etiology. Methods: All heart failure patients with ejection fraction less than 35% and narrow QRS (less than 120 milliseconds) with duration of symptoms 6 months or more irrespective of the etiology were included in the study. All patients underwent detailed Echocardiographic evaluation. The echocardiogram was performed using PHILIPS HD7XE machine. Results: Dyssynchrony can be present in severe heart failure. 30 heart failure patients with ejection fraction less than 35% and narrow QRS (less than 120 milliseconds) with duration of symptoms 6 months or more were assessed by detailed Echocardiographic evaluation. Interventricular dyssynchrony was present in 20% of the patients The frequency of intraventricular dyssynchrony in this study was 23.3% based on Ts SD and Ts diff. Among the indices, the correlation between Ts –SD and Ts diff was greater. Intra and interventricular dyssynchrony occur in a significant proportion of heart failure patients with a QRS duration of 120 ms or less. Conclusion: Cardiac resynchronization therapy can improve cardiac function and clinical status in patients with severe heart failure and left bundle branch block. Since in initial studies patients with a wide QRS seemed to benefit the most from biventricular pacing, most of the patients enrolled in these trials had a QRS duration greater than 150ms.
Authors and Affiliations
Viswanathan T, Balachandran C, Ravichandran Edwin M, A S Arul, Anandan Heber
Keywords
Related Articles
- EP ID EP487840
- DOI 10.26611/1005104
- Views 91
- Downloads 0
Effect of Pranayama on cardiopulmonary functions and serum MDA levels
Yoga, pranayama, trascedental meditation are age old ancient Indian techniques known for providing a better way of living. They are claimed to improve status of body and mind. There are some evidences that pranayama prod...
Coverage and compliance of mass drug administration for elimination of lymphatic filariasis: A survey from Medak district of Telangana, INDIA
Introduction: Lymphatic filariasis is the world's second leading cause of long-term disability An important tool for elimination of Lymphatic filariasis is mass drug administration (MDA) with albendazole combined with ei...
Control of Massive Hemoptysis in Pulmonary Tuberculosis Patients with Bronchial artery Embolisation
Background: Massive and untreated haemoptysisin pulmonary tuberculosis patients is a medical emergency. Conservative management of massive hemoptysis carrieshigh mortality rate. Bronchial artery embolization has become a...
Comparison of efficacy of fluticasone propionate and mometasone furoate in the treatment of allergic rhinitis
Objectives: To compare the efficacy of Fluticasone Propionate and Mometasone furoate in Allergic rhinitis and Based on the results to appraise possible better outcomes in the treatment of Allergic Rhinitis.
A rare case of a swollen knee due to single large synovial chondroma
Introduction: A synovial chondromatosis is a rare benign neoplasm on the synovium. Although described as a benign disease, it can be very destructive and can cause severe osteoarthritis and pain. Case presentation: A 58-...