The primary function of an 18-G puncture needle in subcutaneous laser treatment for bromhidrosis is to create precise, minute entry channels on the skin surface. These micro-perforations serve as the dedicated pathway for inserting the laser fiber cannula, allowing the treatment equipment to enter the subcutaneous tissue without the need for large surgical incisions.
By utilizing an 18-G needle to create specific access points, the procedure accommodates the necessary laser hardware while remaining minimally invasive. This approach eliminates the need for sutures, allowing natural healing that significantly reduces scarring and infection risks compared to traditional excision.
The Mechanics of Access
Creating Strategic Entry Points
The 18-G needle is used to puncture the skin at specific locations, typically the anterior and posterior margins of the axilla (armpit).
These punctures act as the gateway for the procedure. By placing them at the margins, the procedure ensures that the entire target area can be accessed efficiently.
Accommodating the Cannula
The specific gauge (size) of the needle is not arbitrary. It is selected to perfectly accommodate the diameter of the laser fiber cannula.
The needle creates a path just wide enough for the cannula to slide through. This ensures the equipment enters the tissue non-destructively, preserving the integrity of the surrounding skin.
Clinical Benefits and Outcomes
Eliminating Surgical Incisions
Traditional bromhidrosis treatments often involve surgical excision, which requires cutting the skin.
The 18-G needle replaces these incisions with micro-perforations. This shift from cutting to puncturing changes the classification of the procedure from open surgery to a minimally invasive intervention.
Promoting Suture-Free Healing
Because the entry points created by the 18-G needle are minute, they do not require sutures (stitches) to close.
The skin is able to heal naturally. This rapid closure mechanism acts as a barrier against bacteria, significantly reducing the risk of postoperative infection.
Improving Aesthetic Results
The most visible benefit of using this needle technique is the reduction in scarring.
Surgical incisions often leave permanent marks. In contrast, the micro-incisions heal with minimal visible evidence, offering a superior cosmetic outcome for the patient.
Understanding the Procedural Context
Access vs. Treatment
It is important to distinguish the tool from the therapy. The 18-G needle is strictly a preparatory access tool.
It does not treat the bromhidrosis itself. Its sole purpose is to facilitate the safe entry of the laser, which performs the actual ablation of the apocrine glands.
The Trade-off of Minimally Invasive Techniques
While the needle reduces scarring, it relies on the precision of the subsequent laser treatment.
Since the skin is not opened, the physician does not have the direct visual access provided by open surgery. The success of the procedure relies on the needle providing the correct angle and depth for the laser cannula to operate effectively "blindly" beneath the skin.
Evaluating the Approach for Clinical Goals
To determine the value of this technique, consider the specific priorities of the procedure:
- If your primary focus is cosmetic recovery: The 18-G needle is essential because it allows for suture-less healing, avoiding the scars associated with traditional scalpel excision.
- If your primary focus is safety and infection control: The micro-perforation technique minimizes the open wound area, significantly lowering the risk of postoperative complications.
Ultimately, the 18-G needle acts as the critical bridge between effective laser technology and patient-friendly recovery.
Summary Table:
| Feature | Function & Benefit |
|---|---|
| Primary Role | Creates micro-entry channels for laser fiber cannula insertion |
| Gauge Size | 18-G (Optimized to fit specialized medical cannulas) |
| Placement | Anterior and posterior margins of the axilla (armpit) |
| Surgical Impact | Replaces large incisions with micro-perforations |
| Recovery | Suture-free, natural healing with minimal risk of infection |
| Aesthetic Outcome | Significant reduction in permanent scarring vs. excision |
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References
- Daejin Kim, Kihwan Han. Treatment of Axillary Osmidrosis Using a Subcutaneous Pulsed Nd-YAG Laser. DOI: 10.5999/aps.2012.39.2.143
This article is also based on technical information from Belislaser Knowledge Base .
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