Sandbox m

Complex regional pain syndrome Microchapters
Home
Patient Information
Overview
Historical Perspective
Classification
Pathophysiology
Causes
Differentiating Complex Regional Pain Syndrome from other Diseases
Epidemiology and Demographics
Risk Factors
Natural History, Complications and Prognosis
Diagnosis
Diagnostic Criteria
History and Symptoms
Physical Examination
Laboratory Findings
X Ray
Other Imaging Findings
Other Diagnostic Studies
Treatment
Medical Therapy
Surgery
Primary Prevention
Cost-Effectiveness of Therapy
Future or Investigational Therapies
Case Studies
Case #1
Sandbox m On the Web
Most recent articles
Most cited articles
Review articles
CME Programs
Powerpoint slides
Images
American Roentgen Ray Society Images of Sandbox m All Images X-rays Echo & Ultrasound CT Images MRI
Ongoing Trials at Clinical Trials.gov
US National Guidelines Clearinghouse
NICE Guidance
FDA on Sandbox m
CDC on Sandbox m
Sandbox m in the news
Blogs on Sandbox m
Directions to Hospitals Treating Complex regional pain syndrome
Risk calculators and risk factors for Sandbox m

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

Overview

Both type I and type II varieties of complex regional pain syndrome share a common diagnostic criteria. They both consist of having a spontaneous onset of pain that is not limited to the distribution of a single nerve, a history of edema, or abnormal sweating. The only difference lies in the nature of the inciting event.

Diagnostic Criteria

CRPS types I and II share the common diagnostic criteria shown below.

1. Spontaneous pain or allodynia/hyperalgesia is not limited to the territory of a single peripheral nerve, and is disproportionate to the inciting event.
2. There is a history of edema, skin blood flow abnormality, or abnormal sweating in the region of the pain since the inciting event.
3. No other conditions can account for the degree of pain and dysfunction.

The two types differ only in the nature of the inciting event. Type I CRPS develops following an initiating noxious event that may or may not have been traumatic, while type II CRPS develops after a nerve injury.