St depression only on recovery, Biology

Assignment Help:

Q. ST Depression only on Recovery?

Although ST depression during exercise often persists into recovery, it may not manifest until exercise has been terminated. The reasons for this are still not clear but the phenomena have been studied by several investigations. ST depression occurring in recovery only has the same significance as exercise induced ST changes.

Time Course of ST Depression

It has long been recognized that when ST depression comes on early at low workloads the degree of ischaemia is likely to be more severe. It has long been taught, when ST depression comes on at high workloads, but resolves very quickly after exercise, it constitutes a false positive ST depression. However, it has been found that significant CAD was more common than not, at least in those who were referred for angiography. As might be expected, patients with early onset, late offset ST depression usually had severe disease. Group of patients with resting ST depression increased with exercise, was found to have severe disease. It has often been stated that these patients should not be tested because the results would include a large number of false positives.

This might be true if the patients are asymptomatic, but certainly does not pertain to those who have anginal chest pain. It must be cautioned that not all patients with rapid resolution of ST depression during recovery have normal coronary arteries.


Related Discussions:- St depression only on recovery

Show the apical view of transducer position, Q. Show the Apical View of Tra...

Q. Show the Apical View of Transducer Position? For the patient with dextrocardia transducer is kept on right chest with marker towards left side. Morphological parameters to

Describe bentham and hookers system, Q. Describe Bentham and Hookers System...

Q. Describe Bentham and Hookers System? Bernard de Jussieu (1699-1776) tried to classify the plants in Royal Garden, Paris. During this exercise he developed a system of classi

Poultry and duck diseases-ranikhet disease, Ranikhet disease Ranikhet ...

Ranikhet disease Ranikhet disease, also known in the west as Newcastle disease, is a contagious and highly fatal disease of fowls caused by a virus of the genus Rubulavirus in

What type of compound is major metabolic waste of porifera, What type of co...

What type of compound is the major metabolic waste of Porifera? Why is it important for the organism to get rid of this compound?

What is an operon, What is an operon, and in what type of organism are oper...

What is an operon, and in what type of organism are operons found? An operon is a series of genes that code for exact products and the regulatory elements that control those ge

What do you mean by hemoglobin f, Q. What is the hemoglobin F? Why does the...

Q. What is the hemoglobin F? Why does the fetus need different hemoglobin? Hemoglobin F is the hemoglobin found in the hemoglobin and mammalian fetus. A is the normal hemogl

Define class cephalopoda in animal kingdom, Define Class Cephalopoda in ani...

Define Class Cephalopoda in animal kingdom? This group-including squids, octopuses, and the nautilus-is considered by most scientists to have the highest intelligence among all

What are the organs that are part of the male genital system, Q. What are t...

Q. What are the organs that are part of the male genital system? The organs that comprise the male genital system are the testicles, the vas deferens, the seminal vesicles, the

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