Mid tracheostomy is done over?
Correct Answer: 3rd and 4th tracheal rings
Description: ANSWER: (B) 3rd and 4th tracheal ringsREF: Dhingra 4th edition page 292Out of the options provided, option (B) appears to be more correctA mid tracheostomy is the preferred one and is done through the II or III rings and w'ould entail division of the thyroid isthmus (isthmus lies against II, III and IV tracheal rings) or its retraction upwards or downwards to expose this part of trachea.High tracheostomyAbove isthmus , violates the first ringCauses perichondritis and subglottic stenosis and only indication is carcinoma larynxMid tracheostomyOver the isthmus, 2ni and 3rd ringPreferred oneLow tracheostomyBelow isthmusRisk of damage to vessels and tube impinges upon suprasternal notch
Category:
ENT
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