6. Needle-free electronically-controlled jet injector treatment with bleomycin and lidocaine is effective and welltolerated in patients with recalcitrant keloids. 167 6. Supplement 5. Treatment satisfaction questionnaire EPI: electronically-controlled pneumatic injector, Needle: needle-syringe injection, *Multiple answers possible N (%), n= 15 Satisfied with EPI-assisted bleomycin treatment? Strongly agree Agree Neutral (Strongly) disagree Not applicable 5 (33.3%) 9 (60.0%) 1 (6.7%) . . Reduction of itching? Strongly agree Agree Neutral (strongly) disagree Not applicable 4 (26.7%) 7 (46.7%) 4 (26.7%) . . Reduction of pain? Strongly agree Agree Neutral (strongly) disagree Not applicable 4 (26.7%) 8 (53.3%) 3 (20.0%) . . Recommendation of EPI-assisted bleomycin treatment to others? Yes No Unknown 15 (100.0%) . . Treatment preference? Needle-assisted bleomycin EPI-assisted bleomycin No preference . 15 (100.0%) . Reason for preference of EPI-assisted bleomycin over needleassisted bleomycin?* Less painful Shorter treatment duration Better results 13 (86.7%) 5 (33.3%) 10 (67.7%) Disturbed by noise of EPI device? Yes No 1 (6.7%) 14 (93.3%) Darkening of scar? Yes. If yes, cosmetically disturbing? No Unknown 5 (33.3%), 2(13.3%) 8 (53.3%) 2 (13.3%)
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