MICROANATOMY

Detailed explanation-1: -The stellate ganglion is a collection of sympathetic nerves found anterior to the neck of the first rib. It may occasionally extend to being anterior to the transverse process of the C7 cervical vertebra.

Detailed explanation-2: -A stellate ganglion block is an injection of local anesthetic (numbing medicine) to block the sympathetic nerves located on either side of the voice box in the neck. An injection at these nerves may reduce symptoms such as pain, swelling, color, sweating changes in the upper extremity and may also improve mobility.

Detailed explanation-3: -Left stellate ganglion block may shorten the QT interval, whereas right stellate ganglion block lengthens the QT interval.

Detailed explanation-4: -The target of injection for stellate ganglion block is the anterior tubercle of the C6 transverse process, and the cricoid cartilage is known as the landmark of the level of the C6 vertebra in supine neutral position.