Reduction in left ventricular, Biology

Assignment Help:

Q. Reduction in left ventricular?

Vasodilators improve stroke volume, and reduce degree of regurgitation. This results from decrease in systemic vascular resistance and leads to reduction in left ventricular end diastolic volume, after load, wall stress and LV mass. They also preserve LV systolic function. Hydralazine and nefedipine when given at appropriate doses decrease left ventricular size and improve LV function. The dose should be titrated to bring down systolic blood pressure as much as possible without getting side effects. Less consistent results were obtained with ACE inhibitors and increased plasma renin activity is not an issue in these patients. Vasodilators may be given in any patient with severe AR with LV dysfunction and symptoms of heart failure when patient is a poor candidate for surgery. They may also be given to a patient with severe AR and LV dysfunction with or without symptoms to improve hemodynamic profile before surgery. They are also indicated in a patient with severe AR and normal LV function. Here they delay the onset of LV dysfunction, symptom onset and postpone the time for AVR and also improve operative outcomes. In this situation there is no proven role of any other medication. Vasodilators should not be used as a substitute for aortic valve replacement in a patient with severe AR who needs surgery either due to LV dysfunction or symptoms. They are also not indicated in patients with mild AR and normal sized left ventricle with good LV function. Following AVR, ACE inhibitors may be better choice in patients with persistent myocardial systolic dysfunction.


Related Discussions:- Reduction in left ventricular

Mitral valve replacement with allograft , Mitral Valve replacement with All...

Mitral Valve replacement with Allograft (Mitral homograft) :  C. Acar and colleagues used mitral allograft for mitral valvc replacement using a new technique of fixation of p

Arthropods, what are the general characteristics of arthropods?

what are the general characteristics of arthropods?

Enhancing the bio-availability of minerals, Mineral supplements and Mineral...

Mineral supplements and Mineral supplements and enhancing the bio-availability of minerals The proper balance of protein, energy, vitamins, and minerals is needed in the ratio

Explain about oral irrigation devices, Oral irrigation Devices The use ...

Oral irrigation Devices The use of oral irrigation devices has been controversial due to concerns about incomplete plaque removal and potential separation of connective issue f

Neuroglia cells, NEUROGLI A CELLS (Rudolf Virchow, 1846) - Occurs i...

NEUROGLI A CELLS (Rudolf Virchow, 1846) - Occurs in the C.N.S. The cells are less than neurons. Neuroglia cells are of four types - (i) Oligodendrocytes - Occ

Where is the patient most likely to experience, The most recent blood work ...

The most recent blood work of a patient with a diagnosis of acute myelogenous leukemia (AML) reveals thrombocytopenia. Where is the patient most likely to experience abnormal bleed

#title.humans and environment., what are the two main pollutants that contr...

what are the two main pollutants that contribute to aci rain

Taxonomy, . Explain why the traditional classification of unicellular euka...

. Explain why the traditional classification of unicellular eukaryotes as ‘protozoa’ or ‘protists’ is invalid in terms of modern systematics and evolutionary theory. Why are trad

Find which of the following is most stable, Hydrogen ( h) has 1 electron; C...

Hydrogen ( h) has 1 electron; Carbon ( c) has 6 electrons, use the octet rule to determine which of the following is most stable. Note: some of these may have double bonds. A. O

The human impact on the environment, what are the principle sources of exce...

what are the principle sources of excessive nitrate and phosphate in rivers and lakes?

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