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Health Dictionary

Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.

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Regional analgesia

Introduction

Regional analgesia blocks passage of pain impulses through a nerve by depositing an analgesic drug close to the nerve trunk, cutting off sensory innervation to the region it supplies. The drug is normally injected at a site where the nerve is unprotected by bone.

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