Examination of the Pathophysiologic Mechanisms of CRPS by Using QST, CPM, RIC, and Heart Rate Variability QST

CRPS-patients Inclusion Criteria: * Unilateral pain on the upper limbs, based on a scintigraphic ensured CRPS (average pain in the last 4 weeks ≥ 3 in pain Detect) * Pain history \< 1 year Exclusion criteria: * Bilateral pain on the upper limbs * Inadequate knowledge of the german language in speaking and writing * Acute psychiatric sickness * Polyneuropathy * Any added neuropathic sickness on the not affected upper limb sight * Intolerable pain during the testing * Injuries within the tested areal * Acute injuries on the hand * Pregnancy * Missing informed consent CTS-patients Inclusion Criteria: * Unilateral pain on the upper limbs, based on a scintigraphic ensured CRPS (average pain in the last 4 weeks ≥ 3 in pain Detect) * Pain history \< 1 year Exclusion criteria: * Bilateral pain on the upper limbs * Inadequate knowledge of the german language in speaking and writing * Acute psychiatric sickness * Polyneuropathy * Any added neuropathic sickness on the not affected upper limb sight * Intolerable pain during the testing * Injuries within the tested areal * Acute injuries on the hand * Pregnancy * Missing informed consent Healthy subjects Inclusion Criteria: * Age \> 18 years * Written consent Exclusion criteria: * Inadequate knowledge of the german language in speaking and writing * Current pain * Pain within in the last 14 days * Any serious internistic medicin * Any chronic skin disease * Any central neural sickness * Polyneuropathy * Peripheral nerve lesi…