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CRPS TYPE 1-DIAGNOSIS

Neurology

CRPS TYPE 1-DIAGNOSIS

1. X-ray: needs 30%-50% bone demineralization before detection. Questionable use.

2. Triple-phase bone scan: diffusely increased juxta-articular tracer activity on delayed images is the most sensitive indicator for RSD; sensitivity 96%, specificity 97%, and PPV 88% (Harbert et al., 1996; Kozin, 1981; Simon & Carlson, 1980).

3. EMG as predictor for CRPS (Cheng & Hong, 1995).

4. Clinical: most consistent early diagnostic signs are shoulder pain with flexion, adduction and external rotation; no pain in the elbows; pain of wrist dorsiflexion with edema. Shoulder and hand pain preceded by rapid ROM loss & pain disproportionate to signs.

5. Stellate ganglion block: alleviation of pain following block is gold-standard for diagnosing RSD.


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REFERENCES

1. Wilkinson, I. (2017). Oxford handbook of clinical medicine. Oxford: Oxford University Press.
2. Hannaman, R. A., Bullock, L., Hatchell, C. A., & Yoffe, M. (2016). Internal medicine review core curriculum, 2017-2018. CO Springs, CO: MedStudy.
3. Image: no reference available.

Ⓒ A. Manickam 2018

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