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Can Ultrasound Examinations Generate Pain in Hidradenitis Suppurativa Patients? Results from a Multicentric
Ximena Wortsman1,2, Francisco Reyes-Baraona2, Cristian Ramirez-Cornejo2
1Institute for Diagnostic Imaging and Research of the Skin and Soft Tissues, Santiago, Chile.
Background:
Pain is not a trivial issue for hidradenitis suppurativa (HS) patients and has been considered a domain in the Core Outcome Set. To date, there is no evidence about pain caused by the ultrasound examinations.
Objective:
The aim of the study was to assess the presence of pain generated by the ultrasound examinations of HS patients.
Methods:
A multicentric cross-sectional study for detecting pain during the ultrasound examinations of HS patients using a validated verbal questionnaire immediately after the imaging studies. Statistical analysis included demographic data and possible associations with sex, age, location, clinical (Hurley), and ultrasonographic scoring (SOS-HS). The statistical tests were two proportions Z test, χ2 test, Student's t test, and ANOVA. A p < 0.05 was considered significant.
Results:
317 patients met the criteria. 77.3% of them did not present pain. Of cases with pain, 59.8% were mild, 16.7% moderate, and 23.6% severe. No significant association was found with sex, age, staging, location, or the number of affected regions. Although nonsignificant, severe pain cases were more frequent in the clinical Hurley III and ultrasonographic SOS-HS III stages.
Conclusion:
Pain generated by the ultrasound examination of HS patients is infrequent.
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