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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.
Q. Why is waste considered one of the major environmental issues? The environmental problem regarding waste worsens with industrial development and the global growth of consump
Define Use of Soy Protein Concentrates in Bakery Products? Unlesss higher protein fortification levels are necessary, there is no special reason for using soy protein concentra
Define Types of Root Canal Perforations According to size According to size: Small perforation: ( smaller than #20 endodontic instrument ) mechanical damage to tissue is
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Define Larval Stage of Taenia Cystcercus? The pork tapeworn (T: solium) and beef tapeworn (T : saginata , which are endoparasites of humans who are the final hosts
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Why should you not apply cosmetics while doing a lab experiment in class?
Interaction of insect hormones in the process of metamorphosis The organs and the hormones usually included in metamorphosis of insects. This is since despite the fact that t
Explain the Components of heart sounds? The first major component is associated with mitral valve closure (M 1) and is due to abrupt arrest of the leaflet motion when the cusps
Q. Which chemical elements are involved to form most of living biological matter? Ans The chemical elements that form most of the molecules of living beings are carbon (C)
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