What is qt dispersion, Biology

Assignment Help:

Q. What is QT Dispersion?

Is the difference between the QT interval measured from one part of the heart and the QT interval measured from another part of the heart. The QT interval must be measured in each leads, corrected for the heart rate and compared with all the other leads. The difference between the longest QT and the shortest is dispersion. QT dispersion has been studied extensively in patients with myocardial injury and has been found to correlate with the risk of serious ventricular arrhythmias and has also been measured before and after exercise. Patients with maximum QT dispersion with exercise are more likely to have ischaemia. It is found that when an increase in QT dispersion of greater than 20 msec is combined with ST depression, the specificity is 87 per cent. The measurements necessary to calculate dispersion however, are time consuming. Recently an automated method to measure dispersion has been reported. If it proves to be accurate and commonly available it may add to the parameters available identify ischaemia.


Related Discussions:- What is qt dispersion

Is geometric isomers have the same connectivity, Geometric isomers: Select ...

Geometric isomers: Select one: a. Have the same molecular weight b. Have the same connectivity c. Have a different configuration about a double bond d. All of the above

Explain adverse effects of caspofungin, Explain Adverse Effects of Caspofun...

Explain Adverse Effects of Caspofungin Although generally well tolerated, caspofungin occasionally causes rash, fever and mild hepatic toxicity (Medical Letter 2001; 43:58). An

Haccp - what is validation, HACCP - What is Validation Validation   : ...

HACCP - What is Validation Validation   :  That element of verification focused on collecting and evaluating scientific and technical information to determine  if  the HACCP

Ventricular arrhythmias-peri operative problems, Ventricular Arrhythmias : ...

Ventricular Arrhythmias :  These include premature ventricular contractions (PVC), ventricular tachycardia (VT) and ventricular fibrillation (VT). At times they may be respon

Dna extraction, sir i want standard protocol to extract dna from banana le...

sir i want standard protocol to extract dna from banana leaves

Define the petrifilm (dry film) method, Define the Petrifilm (dry film) Met...

Define the Petrifilm (dry film) Method? An alternative method to the conventional SPC is a Petrifilm (dry film) method. It is a non-petri dish plating system where a layer of n

Toxic agents present in which food, Toxic agents present in food which inte...

Toxic agents present in food which interfere with thyroxine synthesis lead to the development of: 1. toxic goitre 2. cretinism 3. simple goitre 4. thyrotoxicosis si

History of viruses, In the early days of microbiology, the disease producin...

In the early days of microbiology, the disease producing submicroscopic agents were termed as 'filterable viruses' because of their ability to pass through conventional filters whi

Drugs derived from plants, A large number of important drugs are derived fr...

A large number of important drugs are derived from plants. For example Tubocuranin, derived from plant-based curare, is used as a muscle relaxant during surgery. Curianol, a Guy

Sericulture, Sericulture : This is related to silk worms. Sericulture is al...

Sericulture : This is related to silk worms. Sericulture is also known as silk farming. Sericulture is rearing of silkworms for the production of raw silk. There are many types of

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