St-segment depression after hyperventilation, Biology

Assignment Help:

Q. ST-segment depression after  hyperventilation?

Patients with abnormal autonomic drive have demonstrated ST-segment depression after hyperventilation as well as after exercise. Patients who display ST-segment depression at rest or an increased ST-segment depression after hyperventilation, in whom the depression tends to return to normal with exercise usually do not have epicardial CAD. Changes associated with hyperventilation are associated with normal coronary arteries. Propranolol and other beta-blockers have been shown to back the ST changes associated with hyperventilation, suggesting an autonomic etiology. The common findings that body position may produce similar changes tends to support this concept. These types of changes are common in patients with mitral prolapse.


Related Discussions:- St-segment depression after hyperventilation

Class of crustacea - branchiura, Class of Crustacea - Branchiura Branc...

Class of Crustacea - Branchiura Branchiura involves only around 130 species of ectoparasitic crustaceans living mostly on the integument and gill cavities of freshwater and ma

Pollination, Pollination Many flowering plants rely on animals such as b...

Pollination Many flowering plants rely on animals such as bees, butterflies, moths, wasps, beetles, birds, and bats for pollination to produce fruit. Thirty percent of our food

Define steps for prevention strategies of obesity, Define Steps for prevent...

Define Steps for prevention strategies of Obesity? The first and most important step for the rapidly progressing developing countries is to collect and organize data from vario

Points to keep in mind for diabetes counsellor, Counselling involves a proc...

Counselling involves a process, the aim of which is to help others to help themselves by making better choices and becoming better choosers of options. The counsellor's repertoire

Classification of enzymes, Classification of Enzymes : Enzymes are clas...

Classification of Enzymes : Enzymes are classified  into the following six main categories in according with  the nature of reaction the catalyze: 1.      Oxidoreductases

Artificial parthenogenesis, Artificial Parthenogenesis In various cas...

Artificial Parthenogenesis In various cases, the eggs that normally develop only after fertilisation can be experimentally induced to develop parthenogenetically by specific

Metabolism, Metabolism Metabolism as you know is a process by which li...

Metabolism Metabolism as you know is a process by which living organisms acquire and use energy. A large number of biochemical reactions take place in the living organisms dur

What does s-shaped pattern of population growth show, What does S-shaped pa...

What does S-shaped pattern of population growth show? How is J-shaped pattern dissimilar from it and why?

425, #questionThree actographs (look closely to see the labels A, B, and C)...

#questionThree actographs (look closely to see the labels A, B, and C). Assume that the abscissa is either 24 or 48 hours for each actograph. You are asked to write two sentences 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