Describe technique operation prosthetic valve endocarditis, Biology

Assignment Help:

Describe the Technique of Operation in prosthetic valve endocarditis?

The operative principle is drainage of abscess, removal of debris and valve rep or replacement to reverse haemodynamic abnormality. Any acquired defect like VSD ring abscess, fistula or aneurysm has to be repaired. In children congenital lesion is also rectified.

Availability of intra operative TEE is absolutely essential during surgery. Cardiopulmonary bypass with aortic and bicaval cannulae is instituted. Antegrac and retrograde cardioplegia are administered. Manipulation of heart is kept to a minimum for fear of embolism. For aortic valve endocarditis inspection of anterior mitral leaflet and chordae for drop lesions is a routine procedure. Mitra valve may be repaired and valve perforation could be closed with pericardial patch if infection is under contl-01.

When valve replacement is necessary, the valve is excised and careful check for abscess is done. If present it is drained and debridement done. Abscess that burrows deeper could cause aortoventricular or atrioventricular separation.

Interrupted sutures with pericardial patches are used to treat this and anchor the valve. Larger disruptions are managed with autologus or bovine pericardial patches. The advantage of a bioprosthesis over mechanical valve in preventing re infection has not been proved conclusively. However, for aortic prosthetic valve endocarditits a cryopreserved, free homograft is the best choice. In such cases if there is extensive abscess formation and disruption of aoi-to-ventricular continuity homograft aortic root replacement with re-implantation of coronaries is the preferred technique.

 


Related Discussions:- Describe technique operation prosthetic valve endocarditis

Microbiology, different applications of microbiology

different applications of microbiology

Signs and symptoms of acute glomerulonephritis, Signs and Symptoms ...

Signs and Symptoms Decreased urine output  Bloody or brown colour urine  Edema Malaise  Mild headache  Gastrointestinal disturbances

Prophase of karyokinesis, 1. This is very prolonged phase, and differs from...

1. This is very prolonged phase, and differs from the prophase of mitosis, because in this Chromosomes behave as homologous pairs. 2. Each diploid cell has two chromosomes of ea

African swine fever, African swine fever African swine fever (ASF), a ...

African swine fever African swine fever (ASF), a highly contagious viral disease of swine and other porcine animals (generally confined to the African continent, part of Weste

Mucoproteins (glycoproteins), MUCOPROTEIN S (GLYCOPROTEINS) Protein...

MUCOPROTEIN S (GLYCOPROTEINS) Proteins having conjugated mucosaccharides that form viscous mucus or mucoid secretions. The gastric mucus or mucoprotein is resistant to p

Hypocoagulation disorder and vitamin k deficiency, Which of the following p...

Which of the following patients likely faces the highest risk of an acquired hypocoagulation disorder and vitamin K deficiency? Answer A. A patient who is immunocompromised as a re

Illustrate the structure of starch granule, The Starch Granule - Structure ...

The Starch Granule - Structure Starch is a polysaccharide, a chain of many glucose molecules. There are two types of glucose chains in starch. One is a simple chain called am

Breathing and exchanges of gases , What happens to respiratory system in a ...

What happens to respiratory system in a man going up a hill?

Lakes - lentic ecosystems, Lakes - Lentic Ecosystems Most lakes occur...

Lakes - Lentic Ecosystems Most lakes occur in regions which have recently been subjected to geological changes; say within the past 20,000 years. However, a few lakes, such a

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