Cardiac resynchronization therapy, Biology

Assignment Help:

This innovative, pacemaker-based approach to the treatment of patients with heart failure who have a wide QRS complex (>140 ms) on 12-lead ECG aims at providing electromechanical coordination and improved ventricular synchrony in symptomatic patients who have severe systolic dysfunction and clinically significant intraventricular conduction defects, particularly left bundle-branch block. A percutaneous, three-lead, biventricular pacemaker system is used; one lead is placed in the right atrium, one is placed in the right ventricle, and a third is passed through the right atrium, through the coronary sinus, and into a cardiac vein on the lateral wall of the left ventricle. 

Beneficial effects include reverse remodeling, resulting in decreased heart size and ventricular volumes, improved ejection fraction, and decreased mitral regurgitation. Clinical improvements in exercise tolerance, quality of life, and the rate of hospitalization have been documented. However resynchronization therapy has not been shown to enhance survival.


Related Discussions:- Cardiac resynchronization therapy

Congenital aortic stenosis-types of aortic stenosis, Congenital Aortic Sten...

Congenital Aortic Stenosis :  The valve may be unicuspid, bicuspid or tricuspid. Rarely it is a dome shaped diaphragm. Uni commissural aortic stenosis produces significant sy

Dietary management of dyspepsia, Q. Dietary management of dyspepsia? Ke...

Q. Dietary management of dyspepsia? Keeping in mind the etiology, symptoms and complications of dyspepsia it must be clear that treatment and management of [his disorder does n

What do you determine by mantle, What do you determine by Mantle? A thi...

What do you determine by Mantle? A thin sheetlike membranous extension of visceral mass of molluscs which forms two flaps of skin. Mantle secretes the shell on the dorsal side

What is atrial septal defect, What is Atrial Septal Defect ? Fig...

What is Atrial Septal Defect ? Figure: Anatomical location of Am Indication for Surgery :  The presence of an ASD or PAPVC (Partial Anomalous Pulmonary Venous Conn

How concept of chromosome related to the concept of the gene, How is the co...

How is the concept of chromosome related to the concept of the gene? A chromosome is a DNA molecule and chromosome may contain several different genes and as well DNA portions

Nuclear transfer method for gene transfer, Nuclear transfer method: Nucle...

Nuclear transfer method: Nuclear transfer will extend the range of species in which gene targeting will be possible and thereby provide better models to test treatments for human

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd