In emergency tracheostomy all of the following structures are damaged, EXCEPT?
Bleeding can occur immediately after a tracheostomy and in the late postoperative period. Sources of hemorrhage include granulation tissue in the stoma or trachea, and erosion of thyroid vessels or the thyroid itself, the tracheal wall (frequently from suction trauma), or the innominate aery. Inferior thyroid aery, a branch of the thyrocervical trunk of the subclan aery lies laterally away from midline, thus can escape injury.
Isthmus of the thyroid
Inferior thyroid aery
Thyroid ima aery
Inferior thyroid vein