raquianestesia
Raquianestesia, or spinal anesthesia, is a regional anesthesia technique in which a local anesthetic is injected into the subarachnoid space surrounding the cauda equina. This produces a reversible blockade of nerve conduction at spinal levels, leading to sensory and motor anesthesia of the lower body. The spread of the block depends on the drug’s baricity, dose, and the patient’s position.
Indications include surgeries of the lower abdomen, pelvis, perineum, and lower limbs, as well as cesarean sections
Technique involves placing the patient either in a sitting or lateral decubitus position, performing a sterile
Risks and complications include hypotension, high spinal anesthesia with potential respiratory compromise, post-dural puncture headache, back
Historically, spinal anesthesia was developed in the late 19th century and refined in the early 20th century,