Define aortic regurgitation, Biology

Assignment Help:

Q. Define Aortic regurgitation?

Aortic regurgitation is a common valvular disease that may present chronically or acutely. Normally the integrity of valve closure depends upon the anatomy of valve leaflets and on three dimensional geometry of aortic root and sinuses of Valsalva. Wide variety of causes may lead to aortic regurgitation. Usually 50 per cent of valve replacements are due to diseases of valve and 50 per cent due to root disease. However, in India predominant cause of aortic valve replacement is still rheumatic.

Table : Causes of Aortic Regurgitation

                                                                  Acute                                             - Aortic dissection
                                                                                                                       - Trauma
                                                                                                                       - Leaflet perforation due to endocarditis
Chronic

                                                                 Valve leaflet disease                         - Congenital
                                                                                                                              Bicuspid
                                                                                                                              Unicuspid
                                                                                                                              Quadricuspid
                                                                                                                              Fenestrations
                                                                                                                         - Rheumatic
                                                                                                                         - Infective endocarditis
                                                                                                                         - Myxomatous degeneration
                                                                                                                         - Fibro calcific degeneration
                                                                                                                         - Systemic Lupus Erythematosus

                                                                                                                          - Rheumatoid
                                                                                                                          - Pharmacological agents

                                                                Aortic Root Disease                          - Hypertension
                                                                                                                          - Idiopathic root dilatation
                                                                                                                          - Marfan's Syndrome
                                                                                                                          - Aortic dissection
                                                                                                                          - Annuloaortic ecstasia
                                                                                                                          - Cystic medial necrosis
                                                                                                                          - Syphilis
                                                                                                                          - Ankylosing spondylosis
                                                                                                                          - Takayasu arteritis
                                                                                                                          - Psoriatic arthritis
                                                                                                                          - Reiter's Syndrome
                                                                                                                          - Relapsing Polychondritis
                                                                                                                          - Kawasaki disease
                                                                                                                          - Osteogeneses imperfecta
                                                                                                                          - Giant cell Arteritis
                                                                                                                          - Ehlers - Danlos Syndrome

Sub Valvular                                                                                                      - Discrete sub aortic stenosis

                                                                                                                          - VSD with aortic regurgitation due to prolapse

Majority of elderly hypertensive patients have trivial to mild aortic regurgitation due to varying degrees of root dilatation due to hypertension and degenerative changes in the valve. However, they are rarely of clinical importance and may not progress to severe aortic regurgitation.


Related Discussions:- Define aortic regurgitation

How can bacteria produce human insulin, Q. How can bacteria produce human i...

Q. How can bacteria produce human insulin on an industrial scale? What are the other forms of insulin made available by the pharmaceutical industry? Bacteria don't naturally sy

What is electrocardiogarm, Q. What is Electrocardiogarm? Poor R-wave pr...

Q. What is Electrocardiogarm? Poor R-wave progression, in precordial leads, or q-waves in anterior leads. Intraventricular conduction defects, esqecially LBBB are common. There

Show the peptide found in the brain, Q. Show the Peptide found in the brain...

Q. Show the Peptide found in the brain? There are as many as 300 peptide neurotransmitters found in the brain. Peptide is a short protein consisting of fewer than 100 amino aci

Headache associated with neurological diseases, Headache Associated with Ne...

Headache Associated with Neurological Diseases Headache is a symptom of many nervous system disorders, usually resulting from the distortion of pain sensitive structures. Commo

Poultry and duck diseases-infectious bursal disease (ibd), Infectious bursa...

Infectious bursal disease (IBD) It is a highly contagious acute disease in young chicken up to 6 weeks of age causing high morbidity and low mortality. Bursa may atrophy at th

Movement of body parts, MOVEMENT OF BODY PARTS - Movement of appenda...

MOVEMENT OF BODY PARTS - Movement of appendages bring about locomotion. Perapodia, setae in Annelida, jointed legs in Arthropoda, flat foot in mollusca, tube feat in sta

Management of soil productivity, Management of soil productivity The co...

Management of soil productivity The continuous prosperity and well being of the people of any nation is dependent upon several factors, one of the most important being the leve

Ammonotelism - excretion, Normal 0 false false false EN...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

Haccp control point, HACCP Control Point  HACCP Control Point :  Any...

HACCP Control Point  HACCP Control Point :  Any step at which biological, chemical or physical factors can be controlled.

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