Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
What is Pulmonary Artery Banding ?
Banding of pulmonary trunk is done to reduce pulmonary flow in a baby. It is seldom done for isolated ventricular septa] defect. Multiple muscular ventricular septal defects (Swiss cheese defects) are difficult to close in infancy and so pulmonary artery banding may treat them. It is also the procedure of choice for tricuspid atresia with VSD and other types of univentricular hearts withoutpulmonary stenosis. Pulmonary artery banding is done with a view to Fonton type of correction at a later stage.
Technique : The operation may be performed through a small left anterolliteral thoracotomy or median sternotomy. The latter approach is preferable. Pericardium opened and aorta and pulmonary trunk are dissected and a right-angled clamp passed around it. A 3 to 4 mm wide polyester tape impregnated with silicon is used for banding. The tightness of band depends on the circumference of the band applied. According to Trusler's formula, the circumferential length of the band is 20 mm + weight of the baby in kilograms (taken as millimetres). For a complex cardiac anomaly like univentricular heart the measurement is 24mm + weight of the baby in Kg (taken as millimetres). While tightening the band, aortic pressure and left pulmonary artery pressures are monitored. Properly banded, the pulmonary artery pressure should fall to less than 50 per cent of aortic pressure. Systemic arterial oxygen saturation (SAO,) should be maintained at 80-85 percent. Haemoclips are applied to tighten the band to the correct level. Haemoclips are useful as they can be removed and re-applied at the desired levels. After banding, the band is anchored at two places by prolene sutures to the adventitia of the pulmonary artery.
why is PCR carried out under sterille conditions?
STEROIDS They are a group of tetracyclic lipid derivatives which have a nucleus of cyclopentano-perhydrophenanthrene with phenanthrene part made of 3 hexane rings whil
Calculate the Amount of Oxygen - Microbial Survival and Growth? The amount of oxygen in the environment influences the microbial growth. Depending on the oxygen requirement, yo
Explain briefly about the selenium Toxicity? There is a narrow margin between the beneficial and harmful intakes of selenium. The level at which selenosis occurs is not well-de
can you tell 10 examples of trinomial system of nomenclature?
Explain Microbiological Apparatus and Equipments? It provides an orientation to the various basic equipments, i.e., instruments, tools, glassware and miscellaneous items used i
Q. What are the three main types of viral hepatitis? There are various types of viral hepatitis. The most vital epidemiologically are hepatitis A, hepatitis B and hepatitis C.
What are the approaches to the design of retaining walls? The approach to the design of retaining walls can be started as follows: a. Chosse a trial dimension of the wall
Define Categories of Indicators of Malnutrition? The indicators may fall under the following categories: 1. Macro indicators for sector-wide monitoring and evolution, 2.
What is an oligopeptide? How is it different from a polypeptide? Peptide is the molecule produced by the union of amino acids through the peptide bond. Oligopeptide is a peptid
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!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd