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

Clinical symptoms of hiv, Clinical symptoms of HIV Generally, a person ...

Clinical symptoms of HIV Generally, a person infected with HIV does not show any apparent symptoms for a number (3 to 12) of years. Ten to fifteen percent infected people may,

Can you explain anticodon, Q. How are amino acids brought to the cellular s...

Q. How are amino acids brought to the cellular site where translation takes place? What is an anticodon? Amino acids are brought to ribosomes by RNA molecules known as transfer

Musculoskeletal system, MUSCULOSKELETAL SYSTEM: Disease of  the skin  ...

MUSCULOSKELETAL SYSTEM: Disease of  the skin  and musculoskeletal  system occur commonly  in  early age group. There are  not many  statistics  to prove the exact frequency of

Gametogenesis, The process of meiosis in animals is called gametogenesis .I...

The process of meiosis in animals is called gametogenesis .It takes place in the testis in male and ovary in female. Gametogenesis is divided into spermatogenesis (formation of

Advantage & disadvantage of using algae as source of protein, Define Advant...

Define Advantage & disadvantage of using Algae as source of protein? Advantage Produces proteins which have almost all the Essential Amino acids. Rich in tyrosine

Explain glucokinase, Glucokinase In the fed state, clearance of blood  ...

Glucokinase In the fed state, clearance of blood  glucose is mainly by  liver via glucokinase. Glucokinase, which  is an  inducible enzyme, removes most of the blood glucose fr

Domestication - wildlife, Domestication - Wildlife It means that man h...

Domestication - Wildlife It means that man has taken under his direct care the living beings which are useful to him. Through extensive breeding programmes, he has modified th

Define about the paper chromatography, Define about the Paper Chromatograph...

Define about the Paper Chromatography? Paper chromatography is a very useful technique for separating mixtures of metal ions, anions, amino acids, sugars, dyes, drugs, etc. The

Do all vascular plants develop annual rings, Do all vascular plants develop...

Do all vascular plants develop annual rings? Vascular plants are those, which have phloem and xylem structures within them to transport water and nutrients around the plant. Mo

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