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Education and Visual Information Improves Effectiveness of Ultrasound-Guided Local Injections on Shoulder Pain and Associated Anxiety Level: A Randomized Controlled Study

ObjectiveLocal injections are widely used in patients with a painful shoulder. The aim of this study was to evaluate the possible impact of patients’ visual information on the effectiveness of ultrasound (US)-guided local injections on anxiety levels and shoulder pain. DesignA total of 151 patients, scheduled for local injection owing to shoulder pain, were randomly assigned into two groups in a consecutive order. Patients in group I (n = 72) were provided information related to US findings and allowed to watch the procedures from the monitor, whereas patients in group II (n = 79) received the injection only without any collaboration. Data were collected from both groups immediately before and after injections through visual analog scale and questionnaire (the State-Trait Anxiety Inventory [STAI] forms 1 and 2). ResultsUS-guided local injections provided significant improvement of anxiety and pain in both groups, irrespective of providing visual information. Group I and group II comparisons with respect to the visual analog scale, STAI 1, and STAI 2 yielded significant difference only for postinjection STAI 2 in group I (P = 0.006). Intragroup comparisons revealed significant differences between preinjection and postinjection values (group I: visual analog scale, P = 0.001; STAI form 1, P = 0.001; STAI form 2, P = 0.002; group II: visual analog scale, P = 0.001; STAI form 1, P = 0.002; STAI form 2, P = 0.042). There was no significant difference between the groups in terms of postinjection satisfaction levels from the procedures (P = 0.824). ConclusionsPerforming US-guided shoulder injections with patient visual information provides positive contributions to coping with pain and anxiety. In particular, the patient collaboration–based US-guided injections have positive consequences on patients’ long-standing “trait-anxiety” levels.