Clinical effects of needle free (INJEX30) versus traditional injection of botulinum toxin A for bromhidrosis

Objective To investigate the clinical efficacy of bromhidrosis with botulinum toxin A by needle free injection. Methods A total of 40 patients with bromhidrosis were collected and divided into needle free group and needle group. A comparative study was carried out in those subjects. Patients in needle free group received needle free injection of botulinum toxin A by INJEX30; Needle group received traditional injection by 26 G needles. Results In needle free group, 16 cases were cured, 3 cases were effective, 1 case was ineffective, no significant pain, hematomas or necrosis were found. In needle group, 15 cases were cured, 4 cases were effective, and 1 case was ineffective; localized hematoma occurred in 2 cases. And cases in group needle experienced pain more intensely than cases in needle free group. Conclusions The INJEX30 improves the security, comfort and therapy compliance of botulinum toxin A injection in the bromhidrosis patients, with similar efficacy with traditional injection. Key words: Bromhidrosis; Needle free injection; Botulinum toxin A