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Biomedical subjects

Vera Chotzen

Publications and source records attributed to Vera Chotzen.

2 recordsLinked to original sources

Sebaceous hyperplasia treated with a 1450-nm diode laser.

BACKGROUND: Sebaceous hyperplasia is a benign proliferation of the sebaceous gland. Previous treatment options have included isotretinoin, destructive modalities, and pulsed-dye laser. OBJECTIVE: To evaluate the efficacy of a 1450-nm diode laser for the treatment of sebaceous hyperplasia. METHODS: Ten patients with sebaceous hyperplasia were treated one to five times with a 1450-nm diode laser. Fluences of 16 to 17 J/cm2 were used, with cooling durations of 40 to 50 ms. Patients and physicians evaluated treated lesions for improvement. Measured areas of treated lesions were also recorded. RESULTS: In most cases, patients and physicians rated improvement as "very good" or better. After two to three treatments, 84% of lesions shrunk greater than 50%, and 70% shrunk greater than 75%. Adverse effects were unusual; one atrophic scar and one case of transient hyperpigmentation were observed. CONCLUSION: The 1450-nm diode laser is effective and safe for the treatment of sebaceous hyperplasia.

Humans↗

Full-face laser resurfacing using a supplemented topical anesthesia protocol.

BACKGROUND: Laser resurfacing has become a popular modality for the treatment of photodamaged skin, rhytids, and acne scarring. In many cases, this procedure is performed under general anesthesia or intravenous sedation in conjunction with nerve blocks and local infiltration. OBJECTIVE: To evaluate the safety and efficacy of facial carbon dioxide laser resurfacing using a supplemented topical anesthesia protocol. DESIGN: Nonrandomized case series of patients observed for 1 year. SETTING: Outpatient surgery center. PATIENTS: Two hundred consecutive patients undergoing treatment for facial rhytids or acne scarring. Intervention Full-face carbon dioxide laser resurfacing procedures were performed using a supplemented topical anesthesia protocol. Pretreatment medications included diazepam, oral analgesics, and intramuscular ketorolac tromethamine. MAIN OUTCOME MEASURES: Tolerability of procedure, healing times, and adverse effects. RESULTS: Topical anesthesia provided effective and sufficient anesthesia in most cases. Only 10 of 200 patients required additional anesthesia (regional nerve blocks and/or local infiltration). Substantial improvement of rhytids, photodamage, and acne scarring was observed. Posttreatment hypopigmentation was seen in 1 patient. Scarring was not observed. Conclusion A supplemented topical anesthesia protocol for full-face laser resurfacing is a safe and effective alternative to traditional anesthesia strategies.

Acne Vulgaris↗