Rate related bundle branch block, Biology

Assignment Help:

Q. Rate Related Bundle Branch Block?

The term has often implied the absence of significant coronary or myocardial pathology. It cannot be judged without taking the total clinical picture into consideration. It was believed that in older subjects with LAD, the block would occur at slower heart rates. Wayne and colleagues however, found that 14 to 16 patients with rate related bundle branch blocks had evidence strongly suggestive of CAD. Whenever a block pattern spontaneously occurs during exercise or with hyperventilation, one should consider the possibility of Wolff-Parkinson-White (WPW) syndrome. It is very important to recognize WPW syndrome because the ST-segment depression in this condition does not mean ischaemic heart disease and the short PQ wave and delta wave are easy to overlook. In patients with right bundle branch block, ST depression in leads V2 and V3 is not ischaemia whereas that in V5 and V6 is suggestive of ischaemia. There is a consensus as stated in ACC/AHA guidelines that one cannot diagnose exercise induced ischaemia in patients with left bundle branch block from the ECG. The concept that patients who convert to LBBB at low heart rates are more likely to have CAD than those who convert at high heart rates has not been confirmed.


Related Discussions:- Rate related bundle branch block

Research to improve health care delivery, Research to Improve Health Care D...

Research to Improve Health Care Delivery: Today, much  of health  care  delivery  system remains  imitative  and intuitive rather than innovative,  creative or  scientific in

Hypomagnesaemic tetany , Hypomagnesaemic tetany (grass tetany, grass stagge...

Hypomagnesaemic tetany (grass tetany, grass staggers, lactation tetany) Hypomagnesaemic tetany is a multifactorial complex metabolic disorder, which is  characterized by reduct

Define gonads and reproductive system, Define Gonads and Reproductive Syste...

Define Gonads and Reproductive System? With aging, there is decrease in pituitary hormone secretion causing decrease in gonadal hormone production, which causes number of chang

Is water a polar or a non-polar molecule, Is water a polar or a non-polar m...

Is water a polar or a non-polar molecule? What is the consequence of that characteristic for the function of water as solvent? Water is made of two atoms of hydrogen attached b

Ureotelism - excretion, Normal 0 false false false EN-I...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

Define pseudo-yeasts, Q. What are the Pseudo-yeasts? These are like tru...

Q. What are the Pseudo-yeasts? These are like true yeasts but do not form spores. All the members of this group are particularly unsuitable for fermentation purposes as they p

What is the meaning of narcolepsy, What is the meaning of Narcolepsy Th...

What is the meaning of Narcolepsy This is an inappropriate attack of sleep, the affected person has an overwhelming impulse to fall asleep or simply collapses into sleep at inc

How body fat can be measured, How body fat can be measured? The convent...

How body fat can be measured? The conventional golden method of measuring BF% is by underwater weighing. Difference of weight in air and in water gives density, from which the

Scientific name of the etiological agent of chagas disease, Q. Which is the...

Q. Which is the kingdom of the parasites that cause malaria and Chagas' disease? Those maladies are caused by the protozoans, beings of the kingdom Protista. Q. What is the

Why o-h bond is a polar covalent bond, Describe how electro negativity can ...

Describe how electro negativity can explain why a C-H bond is a no polar covalent bond, but a O-H bond is a polar covalent bond.

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