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

The exine layer, The Exine Layer It consists of two layers, inner (nex...

The Exine Layer It consists of two layers, inner (nexine) which is continuous and an outer (sexine) the sculptured one. The outer layer has ornamentations comprising rod-like

What is digestion, What is digestion? Digestion is the breaking down of...

What is digestion? Digestion is the breaking down of larger organic molecules obtained from the diet, e.g. carbohydrates, fats, proteins, into smaller ones, as glucose, fatty a

Differentiate between sterilization and disinfection, Q. Differentiate betw...

Q. Differentiate between sterilization and disinfection? 1) Sterilization is defined as freeing the object or substance from all life of any kind. It is the process by which a

Effects of failing to prepare adjusting entries, Failure to organize proper...

Failure to organize proper adjusting entries causes net income and the balance sheet to be in error. Using Micro Train Company as an instance this section has discussed and illustr

Define the visual accommodation, Q. What is visual accommodation? Visua...

Q. What is visual accommodation? Visual accommodation is the phenomenon of varying the curvature of the crystalline lens to make possible the difference of its refractivity to

Theory of embryology - gradient theory, GRADIEN T THEORY - It was give...

GRADIEN T THEORY - It was given by T. Boveri & was supported by M.C. Child. Child called it as metabolic axial gradient theory. According to it, the egg has distinct ani

Explain sodium, Explain Sodium Sodium (Nu)  :  In  sodium-restricted di...

Explain Sodium Sodium (Nu)  :  In  sodium-restricted diets, no salt  is added to the diet which still provides approximately 50 mmoL Na. Foods containing high Na content must b

Explain in details class hirudenia - leeches, Explain in details Class Hiru...

Explain in details Class Hirudenia - Leeches? This group includes the leeches. Most leeches grow in tropical freshwater habitats, and are familiar to most people as bloodsucker

Control of noise pollution, Following ways can be used for control of noise...

Following ways can be used for control of noise pollution: It can be controlled by designing, fabricating and using quiter machines. In heavy industries, sound proof insul

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