5. Needle-free electronically-controlled jet injector treatment with bleomycin is efficacious and well-tolerated in patients with severe keloids: results of a randomized, double-blind, placebo-controlled trial. 133 5. Table 1. Patient baseline characteristics Characteristic N (%) Sex Female 5 (35,7%) Age median (Q1-Q3) 27,5 (23,5 – 35,3) Fitzpatrick skin type 1-2 3-4 5-6 2 (14,3%) 10 (71,4%) 2 (14,3%) Anatomical location * Thorax Shoulder(s)/ back Abdomen Neck Upper extremities 7 (50%) 4 (28,6%) 1 (7,1%) 1 (7,1%) 1 (7,1%) Etiology* Acne Spontaneous/unknown Trauma/surgery Chickenpox Folliculitis 5 (35,7%) 5 (35,7%) 2 (14,3%) 1 (7,1%) 1 (7,1%) Previous treatments* Intralesional TCA treatments Intralesional Bleomycin/kenacort treatments Cryotherapy (Shave) excision Clobetasol cream Vascular or ablative laser treatment Excision + Brachytherapy Ciclosporine tablets 11 (78,6%) 4 (28,6%) 4 (28,6%) 4 (28,6%) 3 (21,4%) 2 (14,3%) 2 (14,3%) 1 (7,1%) Surface in cm2 of included keloid lesions 0-10 cm2 10-30 cm2 >30 cm2 8 (57.1%) 3 (21,4%) 3 (21,4%) Total number of previous treatments mean (±SD 9,8 (±7,7) Total POSAS observer score at baseline mean (±SD) 41.1 (±8.1) Total POSAS patient score at baseline mean (±SD) 47.4 (±5.9) Total number of keloids 1 2 - 10 10 - 20 20 - 30 > 30 1 (7,1%) 7 (50,0%) 3 (21,4%) 2 (14,3%) 2 (14,3%)
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