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

Pollenkitt - pollen wall, Pollenkitt - Pollen Wall The lipoidal layer ...

Pollenkitt - Pollen Wall The lipoidal layer found on the outside of the mature pollen grains of many insect pollinated species is known as the pollenkitt. In addition to lipid

Control of air pollution, Air pollution can be controlled by two fundamenta...

Air pollution can be controlled by two fundamental ways. Preventive technique: Important measure to control air pollution Suitable fuel having low sulphur content shoul

Diagram and describe the signalling of toll, Diagram and describe the signa...

Diagram and describe the signalling of toll like receptors and the resulting cytokines.

Which statement is accurate, Which statement is correct? A. Synapomorphies ...

Which statement is correct? A. Synapomorphies identify monophyletic groups. B. A synapomorphy may arise due to covergent evolution. C. A synapomorphy is an ancestral trait. D. Syna

Which disorders is most likely to underlie, A healthy, primiparous (first-t...

A healthy, primiparous (first-time) mother delivered a healthy infant several hours ago, but the mother has experienced postpartum hemorrhage. Which of the following disorders is m

What is cluster headache, What is Cluster headache This is a unilateral...

What is Cluster headache This is a unilateral pain in the head or face that rarely lasts longer than 2 hours but recurs repeatedly for a period of weeks or even months before d

Explain the main biological functions of the polysaccharides, What are the ...

What are the main biological functions of the polysaccharides? Polysaccharides have an energy storage function and a structural function. Polysaccharides incorporated by living

Functions of synergids, Functions of Synergids Ultra structurally the ...

Functions of Synergids Ultra structurally the structure and concentration of cell organelles reveals that synergids are metabolically active. The following Wee functions are a

Synapse - nervous system, Synapse   Nervous System Structural feature ...

Synapse   Nervous System Structural feature of unique importance in the nervous tissue is the synapse. A synapse is the anatomical site at which axon terminal processes of one

Explain the systemic metabolic responses, Explain the Systemic Metabolic Re...

Explain the Systemic Metabolic Responses? Many of the metabolic responses to infection are similar to those following injury. The key changes include: Hyper metabolism: Oxyg

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