The investigators subjected 63 patients (39 with typical Cold urticaria and 24 with atypical Cold urticaria ) and 15 healthy controls to TempTestĀ® cold stimulation tests and critical temperature threshold assessments. Blood microcirculation photoplethysmography measurements were performed 5 min before and 10 min after the ice cube on the volar forearm.
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Photoplethysmography amplitude
Timeframe: 10 min after the end of cold exposure