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Schmerzanderung bei rheumatischen krankheiten mittels differenter applikationsfrequenzen des ultraschalls (Pain modification in rheumatic diseases using different frequency applications of ultrasound) [German]
Uhlemann C
Zeitschrift fuer Rheumatologie 1993 Jul;52(4):236-240
clinical trial
3/10 [Eligibility criteria: Yes; Random allocation: Yes; Concealed allocation: No; Baseline comparability: No; Blind subjects: No; Blind therapists: No; Blind assessors: No; Adequate follow-up: Yes; Intention-to-treat analysis: No; Between-group comparisons: No; Point estimates and variability: Yes. Note: Eligibility criteria item does not contribute to total score] *This score has been confirmed*

In 150 patients with rheumatic diseases the analgesic efficacy of a 3-week therapy series (frequency of application 6 times a week) and a 6- and 9-week-therapy series (frequency of application three times and twice a week, respectively) was investigated. Criterion of evaluation is the local pain, which was determined for the duration of therapy series and the subsequent assessment over three months (once monthly). The 3-week therapy series and the 6- and 9-week-therapy series of ultrasound reached the same degree of analgesic aim. In comparison with the beginning of therapy series a significant reduction of pain continues, also 3 months after the therapy series. Concerning the curative objective the concentrated 3-week therapy series with daily application is justifiable under an economical aspect. The positive analgesic efficacy of a protracted ultrasound therapy series is beneficial from a rehabilitative view.

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