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 solubility of micronutrient cations, Determine the solubility...

Determine the solubility of micronutrient cations The solubility of micronutrient cations is at a maximum at low pH values. As the pH increases the ions of these elements first

Xerophytes, Xerophytes Xerophytes are sometimes loosely defineri as 'pl...

Xerophytes Xerophytes are sometimes loosely defineri as 'plants of dry habitats'. But others have defined xerophytes as 'plants which grow on the substratum that usually beco

Heliozoans - protozoan, Heliozoans - Protozoan Heliozoans are spherica...

Heliozoans - Protozoan Heliozoans are spherical protozoan that occur in the sea or in still bodies of fresh water. They are mainly located in the bottom debris. Fine needle li

Explain the adverse effects of menactra, Adverse effects of menactra The...

Adverse effects of menactra The most common adverse reactions to Menactra include headache, fatigue and malaise, in addition to pain, redness and induration at the site of injec

What is the neuromuscular synapse, Q. What is the neuromuscular synapse? ...

Q. What is the neuromuscular synapse? Neuromuscular synapse is the structure through which the neural impulse passes from the axon of a motor neuron to the muscle cell. This st

Microbes, what microbe is the one that is shaped like a ball with spikes co...

what microbe is the one that is shaped like a ball with spikes comming out

Define triglycerides, Q. Define Triglycerides? Triglycerides are produc...

Q. Define Triglycerides? Triglycerides are produced by the esterification of glycerol with three fatty acid molecules. They are the body's major energy store, particularly in a

Define nutrition support in postoperative nutritional care, Define Nutritio...

Define Nutrition Support in Postoperative Nutritional Care? Aggressive nutritional support is important to avoid postoperative complications and mortality. Routine postoperativ

HEALTHY DIET, EXPLAIN THE CONSTITUENT OF FOOD GROUPS AND THEIR SOURCES

EXPLAIN THE CONSTITUENT OF FOOD GROUPS AND THEIR SOURCES

How can we assess the nutritional status of a chd infant, How can we assess...

How can we assess the nutritional status of a CHD infant? Various assessment methods can be used, particularly anthropometrical -weight, length (height), head circumference and

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