Browsing by Author "Hasson, Ariel"

Now showing 1 - 5 of 5
  • Thumbnail Image
    Item
    Addition of Chitosan May Improve the Treatment Efficacy of Triple Bandage and Compression in the Treatment of Venous Leg Ulcers
    (JOURNAL OF DRUGS IN DERMATOLOGY, 2011) Sandoval, Mauricio; Albornoz, Claudia; Munoz, Sonia; Fica, Mirta; Garcia Huidobro, Isidora; Mertens, Renato; Hasson, Ariel
    Introduction Venous leg ulcers are an important problem in public health due to their high prevalence and treatment cost The gold standard therapy is the compression bandage Addition of different substances to the compression therapy in order to accelerate ulcer healing has been attempted but none of them has yielded optimal results
  • Thumbnail Image
    Item
    Efficacy of topical photodynamic therapy for keratoacanthomas: A case-series of four patients
    (MEDKNOW PUBLICATIONS & MEDIA PVT LTD, 2012) Farias, Maria M.; Hasson, Ariel; Navarrete, Cristian; Nicklas, Claudia; Garcia Huidobro, Isidora; Gonzalez, Sergio
    Topical photodynamic therapy (PDT) is an excellent treatment option for various non-melanoma skin cancers and precancerous lesions, including actinic keratosis, Bowen's disease, and basal cell carcinoma. The clinical use of PDT includes a broad range of neoplastic, inflammatory, and infectious skin diseases. There is also anecdotal evidence suggesting the efficacy of PDT for the treatment of keratoacanthomas (KA). We report a case-series of four patients with solitary KA confirmed by histology, treated with topical PDT with methylaminolevulinic acid (MAL) cream. After three sessions of PDT, the lesions completely disappeared. There was no evidence of recurrence and excellent cosmetic outcome was achieved after three years of follow-up. Topical photodynamic therapy with MAL can be a therapeutic alternative for KA with good clinical and cosmetic outcomes.
  • Thumbnail Image
    Item
    Periorbital Syringoma Treated With Radiofrequency and Carbon Dioxide (CO2) Laser in 5 Patients
    (JOURNAL OF DRUGS IN DERMATOLOGY, 2012) Hasson, Ariel; Magdalena Farias, Maria; Nicklas, Claudia; Navarrete, Cristian
    Syringomas are common benign eccrine ductal adnexial tumors, commonly found in periorbital area. Periorbital syringomas are aesthetically disturbing difficult to treat. Many treatment modalities are described in the literature, including topical and surgical methods, with potential problems such as postinflammatory hyper- and hypopigmentation, low efficacy, or scar formation. We present 5 patients with syringoma treated with the combination of radiofrequency ablation and carbon dioxide (CO2) lasers. Using low-energy parameters on the CO2 laser, and low energy on the radiofrequency, we could complement both treatments maximizing the destruction of the tumors and minimizing the adverse effects in only two sessions. This is a relatively easy, safe, and less painful treatment, with good cosmetic results on periorbital syringomas.
  • Thumbnail Image
    Item
    Topical photodynamic therapy with methylaminolevulinate for the treatment of actinic keratosis and reduction of photodamage in organ transplant recipients: A case-series of 16 patients
    (MEDKNOW PUBLICATIONS & MEDIA PVT LTD, 2012) Hasson, Ariel; Navarrete Dechent, Cristian; Nicklas, Claudia; de la Cruz, Claudia
    Background: Organ transplant recipients (OTR) are at high risk of developing cutaneous neoplasms. Topical photodynamic therapy (PDT) has been used for the treatment of actinic keratosis (AK) in OTR. Aims: The objective was to evaluate the efficacy of PDT with methylaminolevulinate (MAL) in the treatment of facial AK in OTR. As a secondary objective, we wanted to evaluate the usefulness of topical PDT in the reduction of photodamage in OTR. Methods: A prospective, single center, single arm study was made. 16 OTR were included. Topical PDT was applied for 1 or 2 cycles depending on the patient's characteristics. An evaluation of AK was made at visits pre-treatment, at 12 weeks and at 24 weeks. Photodamage was measured with multispectral image technique (SkinCare (R)). Results: A complete response rate of 100% was achieved for AK in all patients; it persisted without change at 12 and 24 weeks of follow-up. 62.5% of patients improved their photodamage as measured by SkinCare (R), but this result was not statistically significant (P = 0.12). All patients had high level of satisfaction at the end of the therapy. Conclusions: MAL-PDT is an effective therapy for the treatment of AK in OTRs. It can reduce photodamage in this group of patients, but these results were not statistically significant.
  • Thumbnail Image
    Item
    Treatment of Facial Atrophic Scars With Esthelis, a Hyaluronic Acid Filler With Polydense Cohesive Matrix (CPM)
    (JOURNAL OF DRUGS IN DERMATOLOGY, 2010) Hasson, Ariel; Romero, William A.
    Background: The treatment of atrophic scars is difficult and dermal filler materials provide a simple alternative with immediate results. Esthelis (R) is an injectable non-animal crosslinked hyaluronic acid of Swiss origin characterized by a polydense cohesive matrix (CPM (R)) which produces a gel of uniform consistency with better biointegration to the tissues and a longer duration.