: A solid foundation in neuroanatomy is critical for safe practice. Practitioners must understand the architecture of target nerves—such as the brachial plexus for upper extremity blocks—and surrounding vascular landmarks to optimize needle placement and avoid complications.

: Procedures should only be performed by trained medical professionals in settings equipped with appropriate monitoring and resuscitation equipment.

: The transition from landmark-based techniques to ultrasound-guided blockade has significantly advanced the field. Real-time visualization of nerves and needle position helps in achieving more precise deposition of anesthetic, which enhances block quality and improves patient safety. Core Techniques and Clinical Applications