Therapeutic Effectiveness of Needle Injection Versus Needle-Free Jet Injector System for Botulinum Toxin Type A in...

Area of Science:

• Dermatology
• Medical Devices

Background:

• Palmar hyperhidrosis is a condition characterized by excessive sweating in the palms.
• Pain during local injections of botulinum toxin type A (BTX-A) is a significant challenge in treating palmar hyperhidrosis.

Purpose of the Study:

• To evaluate the therapeutic effectiveness and pain associated with BTX-A injections using a needle-free direct administration system compared to conventional needles.

Main Methods:

• A comparative study was conducted where BTX-A was administered to the left hand using a conventional needle and to the right hand using a needle-free direct administration system.
• Therapeutic effectiveness was assessed by measuring perspiration reduction, hyperhidrosis Disease Severity Scale scores, and Dermatology Life Quality Index.

Main Results:

• Both needle and needle-free BTX-A treatments resulted in significant perspiration reduction maintained for 28 weeks.
• Significant improvements in hyperhidrosis Disease Severity Scale and Dermatology Life Quality Index scores were observed in both treatment groups.
• The needle-free system demonstrated significantly lower pain visual analog scale scores and reduced overall pain compared to the conventional needle.

Conclusions:

• The needle-free direct administration system effectively reduces pain during BTX-A injections for palmar hyperhidrosis due to its high-speed, small-orifice delivery mechanism.
• This needle-free approach provides comparable therapeutic outcomes to traditional needle injections while enhancing patient comfort.