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Classic Procedure: The approach is the same as described earlier for open mitral valvotomy. The excision starts with an anterior incision on the anterior leaflet at 12o'clock position, 2mm distal to the annulus. The incision is extended. The anterior leaflet with the chordae and the tip of the papillary muscle are removed. If the posterior leaflet is calcified, it is also excised along with chordae and tips of papillary muscles. Over zealous excision and suturing may cause venticular rupture or damage to circumflex coronary arteiy. Valve size is assessed according to the type of valve selected by the surgeon. The valve can be sutured by a continuous suture technique or interrupted pledgetted mattress sutures using 2 '0' braided polyester sutures. The pledgets are usually placed on the atrial aspect or rarely on the ventricular aspect.
Define Placental Transfer of Nutrients? The placenta is n transitory structure developing during pregnancy and lies implanted on the uterine wall. It is connected with the foet
Q. For the enzymatic reaction what is the effect of a substance with the same spatial conformation like an enzymatic substrate? How is this kind of substance known? Substances
Why is pattern baldness more common in men than in women? Pattern baldness is handled by the allele B. Testosterone interacts with the heterozygous genotype (BB′) to make baldn
How does the synthetic theory of evolution incorporate knowledge from Genetics and Molecular Biology into the darwinism? Today it is known as that variation of inherited charac
Q. What is dicoumarol? How does this substance act in the clotting process and what are some examples of its toxicity? Coumarinic anticoagulants cannot be administered during p
To develop the food exchange list, a doctor or dietician keeps in mind four important basic points. These are: 1) Group similar foods in one group. For example cereals, roots,
Q Which is the biological molecule that holds the genetic information that is transmitted hereditarily and controls the cellular functioning? The hereditary molecule that contr
Define Principle for Simple Staining of Bacterial Cultures? In simple staining, a single staining agent preferably a basic dye is used. Commonly used basic stains are carbol fu
Mesophytes These plants grow in moist habitats and well-aerated soils. They prefer soil and air of moderate humidity but fail to swive in areas with water-logged soils or oveta
Explain Micropener - Non-surgical Endodontic Retreatment They are iso-colour coded flexible, StSt hand instruments It has with 7mm k-type flutes, It is ava
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