Evaluation of aging changes of the superficial fat compartments of the midface over time: A computed tomography study.

BACKGROUND: Previous studies on alterations in superficial fat compartments with age yielded contradictory results; the superficial fat tissue volume or thickness was reported to increase, decrease, or remain unchanged. AIMS: To investigate volumetric and dimensional changes in superficial midfacial fat tissue retrospectively in patients who underwent a repeated computed tomography (CT). METHODS: A total of 262 patients (mean age, 46 years; median elapsed time between two CT imagings, 56 months) were included. Axial and sagittal planes were used for measurements of the medial part of the superficial cheek fat (SCF), which is divided into three compartments. The thickness, width, and height of each compartment were measured, and volumes were calculated for both hemifaces. Additionally, results were compared between males and females, and between three age groups: <45, 45-54, and ≥55 years. RESULTS: The total volume of SCF and inferior compartment was significantly increased compared with the first CT findings (p < 0.05). Upper and middle compartment volumes were found to decrease with age (p < 0.05). Thickness was decreased in the upper and middle compartments but not in the lower compartment. The width of the lower and middle compartments increased (p < 0.05), while the upper compartment did not show a significant change with age (p > 0.05). The height of the superficial fat layer was significantly increased at follow-up (p < 0.05). The results were similar for both sexes and all age groups (p > 0.05). CONCLUSIONS: SCF undergoes significant volume and dimensional changes with aging. Therefore, superficial fat tissue should be considered for enhancement of cosmetic treatments.

Predictive factors for acne flare during isotretinoin treatment.

Flare of acne is common at the beginning of isotretinoin treatment. However, severe flare is rare. Multiple comedones, male gender and young age are reported as promoting factors. However, detailed information is still limited. Our aim was to investigate the incidence, types and course of acne flare and the predictive factors for its occurrence. 244 patients were enrolled. Acne grade was defined according to global acne grading system (GAGS) score. Flare was classified according to the increase in number of inflammatory nodules and treatment requirements of the patients. Risk factors (age, sex, duration of acne, basal acne grade, baseline numbers of comedones, papule-pustules, nodules, hyperandrogenism, and presence of sinuses) were investigated. 161 patients completed the study. 79 patients (32%) had facial and/or truncal flare. Flare was mild in 18% (n = 44), moderate in 10% (n = 24), and severe in 4.5% (n = 11) of the patients. For severe flare, male sex, severe acne, GAGS cut-off score greater than 28, presence of more than 44 facial comedones and 2 facial nodules and presence of truncal nodules were found to be predictive. Recognizing predictive factors for severe flare may help to take early precautions and to prevent severe flares which may result with permanent scars.

Congenital malalignment of the great toenails in dizygotic twins.

Congenital malalignment of the great toenails is a nail disorder caused by the malalignment of the nail matrix, which results in lateral growth of the nail plate. It may cause onychogryphosis and, in infants and children, ingrown nails. We report an occurrence of this deformity in dizygotic twins.

Vitamin E does not reduce the side-effects of isotretinoin in the treatment of acne vulgaris.

BACKGROUND: Isotretinoin is widely used in the treatment of severe, recalcitrant, nodular acne. Mucocutaneous side-effects are seen in the great majority of patients and some of them have elevations in their serum lipid and liver enzyme profiles. Recently, it has been shown that addition of vitamin E decreased the toxicity of high-dose retinoids. OBJECTIVE: The purpose of this investigator-blinded, randomized study was to assess whether vitamin E would reduce the side-effects of isotretinoin in the treatment of acne vulgaris. METHODS: Eighty two patients were randomly assigned to one of two treatment groups with isotretinoin (1 mg/kg/day) alone or combined with vitamin E (800 IU/day). The treatment duration was 16 weeks. Mucocutaneous side-effects such as facial erythema, facial dryness, cheilitis and serum lipid and liver enzyme profiles were assessed. RESULTS: There was no difference in the incidence and severity of side-effects related to isotretinoin between the two treatment groups. CONCLUSION: Eight hundred IU/day vitamin E did not improve the side-effects of 1 mg/kg/day of isotretinoin in the treatment of acne vulgaris.