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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.
Mineral biofortification of plants One sustainable agricultural approach to reducing the mineral deficiencies in livestock animals is to enrich major staple food crops (rice,
What is the phenomenon of the apical dominance in plants? How it can be artificially eliminated? The Apical dominance is the phenomenon by which high (over the positive range l
give main charecters of protozoa
Q. What are the morphological differences and similarities between nematodes and annelids? Nematodes, like annelids, have a cylindrical elongated body. Annelids differentiate f
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Spermiogenesis - Spermatogenesis At the end of the meiosis the spermatids appear as simple spherical cells with a centrally located nucleus. Their differentiation into sperm r
REGULATION OF BLOOD GLUCOSE LEVEL Various levels of regulation are exerted at substrate level, hormonal level, enzymatic level and at organ level on carbohydrate metabolism s
Which are the main positive ions found in living beings? The major cations found in living beings are the sodium cation (Na+), the potassium cation (K+), the calcium cation (Ca
COPUL A TIO N - Followed with the help of penis. Sperms are ejaculated deep in vagina. Polyestrous i.e. can capulate any time thorughout the year.
Explain Xanthan Gum Xanthan gum is a microbial polymer prepared commercially in pure culture fermentation from Xanthomonas campestris. This polysaccharide was given the generic
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