Coccygeal Flekus

Lumbar Sympathetic Block

Figure 12.4. (A) The lumbar sympathetic chain, which lies along the anterior-lateral border of the lumbar vertebra. The intended target for a lumbar sympathetic blockade is ipsilateral L2. (B) Slightly oblique image of the lumbar spine with a clamp marking the site for local anesthesia and needle insertion for a right lumbar sympathetic block. Note that the trajectory is slightly over the transverse process.

Figure 12.4. (A) The lumbar sympathetic chain, which lies along the anterior-lateral border of the lumbar vertebra. The intended target for a lumbar sympathetic blockade is ipsilateral L2. (B) Slightly oblique image of the lumbar spine with a clamp marking the site for local anesthesia and needle insertion for a right lumbar sympathetic block. Note that the trajectory is slightly over the transverse process.

Lumbar Sympathetic Block

Figure 12.4. Continued. (C) Fluoroscopic image (slightly oblique) showing the 22-gauge needle inserted for the lumbar block. Note the bend at the tip of the needle (arrow), which facilitates steering during insertion. (D) Lateral radiograph shows the tip of the needle along the anterolateral margin of the L2 vertebra.

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Essentials of Human Physiology

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