Skip to main content
Fig. 2 | Trials

Fig. 2

From: Effect of early stellate ganglion block in cerebral vasospasm after aneurysmal subarachnoid hemorrhage (BLOCK-CVS): study protocol for a randomized controlled trial

Fig. 2

Schematic diagram of stellate ganglion block under ultrasound guidance. After routine disinfection, 0.5% ropivacaine 8–10 mL will be injected into the surface of the longus colli muscle on the medial side of the prevertebral fascia at the level of the C6 anterior tubercle, and then the puncture point will be covered with sterile dressings. B The ultrasonic image of the cross-section of the sixth cervical segment: the blue arrow indicates the prevertebral fascia; the blue dotted line area is the longus colli muscle, and its lateral highlight area is the distribution of the stellate ganglion; and the green triangle indicates the drug injection site (the inner side of the prevertebral fascia), in which the stellate ganglion can be effectively blocked through the diffusion of the drug solution under the fascia and without nerve injury. C6, the sixth cervical segment; CA, carotid artery; CV, jugular vein; TH, thyroid; at, anterior tubercle; M, muscle; SCM, sternocleidomastoid muscle; LCol, longus colli muscle; LCap, longus capitis muscle; N, nerve from cervical plexus; pt, posterior tubercle. ASM, anterior scalene muscle; MSM, middle scalene muscle

Back to article page