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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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Complex regional pain syndrome classification

Introduction

Overview

Overview

Complex regional pain syndrome has been classified as type I (reflex sympathetic dystrophy with no nerve lesions) and type II (causalgia with obvious nerve damage).

Classification

Classification

The International Association for the Study of Pain has divided CRPS into two types based on the presence of nerve lesion following the injury.

  • Type I, also known as reflex sympathetic dystrophy (RSD), Sudeck’s atrophy, Reflex neurovascular dystrophy (RND) or algoneurodystrophy, does not have demonstrable nerve lesions.
  • Type II, also known as causalgia, has evidence of obvious nerve damage.
References

References

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]