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

Explain the summary of morbidity in cad, Explain the summary of morbidity ...

Explain the summary of morbidity  in CAD? i) The prevalence of CAD among immigrant Indians is about three-fold higher than in comparable indigenous populations; ii) CAD tends t

Define development - terminologies used in chromatography, Define Developme...

Define Development - Terminologies used in Chromatography? Development is the process of passing a mobile phase over the adsorbent or support. During the development the sample

Terminal process of diseased stage, Terminal process of diseased stage ...

Terminal process of diseased stage This is the last stage in the process of disease. In this stage, the disease process is halted either temporarily or permanently. There are t

What is intercellular communication explain briefly, What is Intercellular ...

What is Intercellular Communication explain briefly? Both plant and animal cells have developed means of communication between cells. In animals, specialized areas of the cell

Explain transfer of culture from one liquid media to another, Explain Trans...

Explain Transfer of Culture from One Liquid Media to another Liquid Media? 1. Inoculating loop is to be held in the right hand. It is sterilized by incineration in the inner bl

Crossing over, is crossing over of chromosomes is a method?

is crossing over of chromosomes is a method?

Categorisation of neuropsychological assessment, Categorisation of Neuropsy...

Categorisation of Neuropsychological Assessment One can divide neuropsychological assessment into two areas: i) Comprehensive and ii) Specialised assessment. Comprehen

Poultry and duck diseases-fowl pox, Fowl pox Fowl-pox is a highly infec...

Fowl pox Fowl-pox is a highly infectious disease of poultry, especially chickens and turkeys. Pheasants, ducks, geese and guineafowls also suffer from an infection similar to f

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