Relationship between surgical rhinoplasty and Demodex infestation: a case-control study

Area of Science:

• Dermatology
• Parasitology
• Plastic Surgery

Background:

• Human Demodex mites are common skin parasites residing in pilosebaceous units.
• Demodicosis, a condition caused by Demodex mites, can arise independently or secondary to immunosuppression.
• Surgical rhinoplasty can lead to cutaneous complications affecting skin adnexal structures.

Purpose of the Study:

• To investigate the potential link between surgical rhinoplasty and increased susceptibility to Demodex mite infestation.
• To assess Demodex density in patients who have undergone rhinoplasty compared to healthy controls.

Main Methods:

• A prospective case-control study involving 50 rhinoplasty patients and 50 healthy controls.
• Demodex density was quantified using superficial skin biopsies from the malar and nasal regions.
• Statistical analysis was performed to compare Demodex density and the occurrence of skin conditions between groups.

Main Results:

• Rhinoplasty patients exhibited significantly higher Demodex density on the nose compared to controls (p = 0.0001).
• The incidence of xerosis (dry skin) and pustules was significantly greater in the rhinoplasty group (p = 0.046 and p = 0.001, respectively).

Conclusions:

• Surgical rhinoplasty may represent a risk factor for developing demodicosis.
• Prompt diagnosis and appropriate treatment are crucial for faster recovery and better management of post-rhinoplasty skin issues.