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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.
By prodigality of nature it is meant that organisms have an enormous potential to reproduce. A carp or salmon is known to lay over a million eggs. A frog may lay Bs many as 12,000
Q. Do the phylogenetically proximal species have cells with proximal chromosome counts? The number of chromosomes typical of each species is proximal for phylogenetically proxi
how does amoeba reproduce (the whole process)
Wat is the excretory organ of lizard
Explain about the Solar Dryers? There are so many different designs for solar dryers, these range from simple convection dryers, cabinet dryers, shelf dryers to more complicate
How is lymph propelled through the lymphatics? Some of the larger lymphatics are capable to contract, or else the lymph is propelled by body muscles which contract and 'squash'
Decreasing power is available in a cell both as NADPH and NADH but these have quite distinct roles. NADH is oxidized by the respiratory chain to produce ATP by oxidative phosphoryl
how to explain an example from each class of vertebrate
Explain the Properties of Gum tragacanth Gum tragacanth swells in water to give thick viscosity dispersions or pastes similar in texture to soft gels. The viscosity shows a sh
Q. What are branchiae? What are examples of animals that "breath" through branchiae? Branchiae also known as gills are small portions of richly vascularized tissues external or
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