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.
Economic Development and Health The contribution of good health to improved growth and development prospects (or its opposite i.e. the contribution of poor health to reduced e
Determine the term - Neuropsychology The neuropsychology of the various modalities and domains involves applications from the knowledge base concerning the domain or modality i
State in brief about the Macronutrients Each element is specific in its function in plant metabolism, however, the exact functions for a number of them are still not known. T
Indicating the name and respective ploidy of each involved cell how can the formation of sperm cells from germ cells be described? The formation of sperm cells, or spermatogene
Olericulture: It concerned with the cultivation or development of vegetables yielding plants. Olericulture is the study of vegetable growing, dealing with the culture of non-woody
(a)State the law of independent assortment. (b )Using punnett square demonstrate the law of independent assortment in a dihybrid cross including two heterozygous parents.
Q. Describe Sensory Receptors? Receptor organs can detect external or internal stimuli. They can be classified according to the stimulus to which they respond: • Photorecep
what are the names of twelve cranial nerves
Where does hematopoiesis occur? Hematopoiesis happens in the bone marrow (mainly within flat bones), where erythrocytes, leukocytes and platelets are made, and in the lymphoid
Motion Sickness The pathogenesis of motion sickness is poorly under- stood. The prescription cholinergic blocker scopolamine in a patch or oral formulation can decrease sympto
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