Technique-ross operation--surgical techniques, Biology

Assignment Help:

Technique: The suitability of the pulmonary autograft for aortic valve replacement has to be studied by accurate measurement by echocardiogram of the aortic and pulmonary annuli. Size discrepancy of the pulmonary autograft annulus and the aortic annulus should not be more than 2mms. A transverse

aortotomy is done 'and aortic valve inspected. Once suitability for Ross procedure is determined, ascending aorta is transected. Aortic valve with aortic root and sinuses are removed leaving buttons of left and light coronary ostia. Pulmonary artery is transected proximal to its bifurcation. Incision is made on the anteiior part of right ventricular infundibulur well below the pulmonary artery annulus. Dissection on the infundibular septum has to be done carefully to avoid injury to the first septa1 branch of left anteiior descending coronary artery.

To a great extent, the success of the Ross operation depends on the successful completion of this step. The autograft is then removed and necessary trimming done. The proximal anatomises between pulmonary autograft and aoitic annulus is done with continuous prolene sutures. In children, some surgeons prefer absorbable suture when growth of pulmonary autograft is desired. Then the coronary buttons are sutured to appropriate sized holes made on the pulmonay autograft. After that, distal end of the autograft is anastoinosed to the remaining end of the transacted aorta. A pulmonary allograft (homograft) is then sutured to replace the pulmonary valve and the main pulmonary artery.

 


Related Discussions:- Technique-ross operation--surgical techniques

Explain the spermatogonium and spermatocyte I, What is the difference betwe...

What is the difference between spermatogonium and spermatocyte I? The male germ cells are the spermatogonia (diploid cells, 2n) located in the testicles. They mature and by mea

Of which type of tissue are cartilages and bones made, Of which type of tis...

Of which type of tissue are cartilages and bones made? Are the cells of the connective tissue far or near to the others? The relative great spacing among cells is a typical

Caryopsis - development of fruit, Caryopsis - Development of Fruit In ...

Caryopsis - Development of Fruit In cereals each carpel has one ovule and therefore the mature fruit has, just one seed. During maturation, very little or no cell divisions ar

State the continuous sutures suturing technique, State the Continuous sutur...

State the Continuous sutures Suturing technique It can be used to attach 2 surgical flap edges or to secure multiple interproximal papillae of one flap independently of the oth

Chordates, what are the general characters of chordates? At least 10 charac...

what are the general characters of chordates? At least 10 characters.

#titleclasses of fish.., what are the two main classes into which fish are ...

what are the two main classes into which fish are divided

What are quantitative data, What are quantitative data? Give two examples o...

What are quantitative data? Give two examples of quantitative data. Quantitative data are data that can be calculated in numbers. Examples contain the dimensions of an objec

Mechanism of stomatal opening, Mechanism of Stomatal Opening It has be...

Mechanism of Stomatal Opening It has been known for over a century that stomata open because of reversible turgor changes in the guard cells. Stomata open when turgor in the g

Explain adverse effects of ganciclovir, Explain Adverse Effects of ganciclo...

Explain Adverse Effects of ganciclovir Ganciclovir is teratogenic, carcinogenic and mutagenic and causes aspermatogenesis in animals. Granulocytopenia and thrombocytopenia, whi

Cholesterol question, If an infant had a cholesterol level of 800 you may s...

If an infant had a cholesterol level of 800 you may suspect (blank)? How could this happen?d

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