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

Determine the types of symbols used in soil horizons, Determine the types o...

Determine the types of symbols used in Soil Horizons  Three kinds of symbols are used in various combinations to designate horizons. These are capital letters, lower case lett

Arterial system of mammal, ARTERIAL SYSTEM OF MAMMAL Basic plan from...

ARTERIAL SYSTEM OF MAMMAL Basic plan from origin to distribution is similar in all vertebrates as per the mode of respiration. Main anterior aorta in terrestrial forms ar

Zoology of Protozoa, How does the metachronal waves form in the ciliary row...

How does the metachronal waves form in the ciliary row of protozoa ? Explain the cilia beating mechanism associates with it.

Explain the bioelectrical impedance analysis (bia), Explain the Bioelectric...

Explain the Bioelectrical impedance Analysis (BIA)? The difficulty of measuring total body water (TBW) by Isotope Dilution Method led to the search of Bioelectrical Impedance A

Why is the cytoplasm of sperm cells very reduced, Why is the cytoplasm of s...

Why is the cytoplasm of sperm cells very reduced? Why do mitochondria of sperm cells concentrate in the base of the flagellum ? The decreased cytoplasm of sperm cells reduces th

Show artificial systems of classification of plants, Q. Show Artificial sys...

Q. Show Artificial systems of classification of plants? Carolus Linnaeus (1707-1778) popularly known as Carl Von Linne was born on May 1707 at Result, a small village in Smalan

Define points to remember regarding to food processing, Define Points to Re...

Define Points to Remember regarding to Food Processing? 1. Conversion of raw materials and ingredients into acceptable consumer products is referred to food processing, which c

Biochemestry, what are peptides and poly peptides hormones

what are peptides and poly peptides hormones

Why the peritoneal cavity differ from the normal state, How does the presen...

How does the presence of thick, cloudy, yellowish fluid in the peritoneal cavity differ from the normal state?

Define technique of paper chromatography, Define Technique of Paper chromat...

Define Technique of Paper chromatography? Paper chromatography is used as 1. Ascending, 2. Descending or 3. Horizontal technique (circular paper chromatography) It is De

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