Spinal, Epidural, and Caudal Anesthesia - Segmental Level Required for Surgery
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Segmental Level Required for Surgery
Knowledge of the sensory, motor, and autonomic distributions of spinal nerves will help the anesthetist determine the correct segmental level required for a particular operation and anticipate the potential physiologic effects of producing a block to that level. Figure 17.1 illustrates the dermatomal distribution of the spinal nerves.