<![CDATA[Spinal anesthesia is a neuraxial technique involving the injection of local anesthetic into the subarachnoid space to produce reversible sensory, motor, and sympathetic blockade. It is widely used for surgeries below the umbilicus, including lower abdominal, pelvic, perineal, lower extremity, and obstetric procedures. Despite its advantages, such as rapid onset and effective anesthesia, complications may include hypotension, bradycardia, high or total spinal, post-dural puncture headache (PDPH), neurological complications, hematoma, and infection. Therefore, appropriate patient selection, procedural technique, monitoring, and complication prevention are essential. This final assignment employed a literature review by examining relevant sources on spinal anesthesia, including anatomy and physiology, indications and contraindications, patient and equipment preparation, anesthetic agents and adjuvants, techniques, factors affecting block spread, monitoring, complications, prevention, and recent developments. The literature was descriptively analyzed to provide an overview of the clinical application and safety of spinal anesthesia. Spinal anesthesia is effective for various surgical procedures, with outcomes influenced by patient characteristics, drug selection, puncture technique, and anesthetic spread. Bupivacaine is commonly used, with anesthetic agents and adjuvants selected according to the desired block characteristics. Prevention of complications includes proper patient evaluation, atraumatic puncture, ultrasound guidance when appropriate, antithrombotic management, hemodynamic monitoring, and aseptic techniques. Recent developments include pencil-point needles, neuraxial ultrasound, intrathecal adjuvants, and unilateral spinal anesthesia. Safe spinal anesthesia requires appropriate preparation, technique, drug selection, monitoring, and early recognition and prevention of complications.]]>
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