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Striae distensae (SD) are atrophic dermal scars often found on abdomen, breasts, thighs, and hips of pregnant women. The strias\' self-healing without any intervention is a poor possibility. Till now, several lasers and light sources have been used for treatment of SD. However, there are no integrated therapeutic approaches determined for treatment of SD yet. So, in this study, the therapeutic effect of fractional ablative CO2 laser in women with pregnancy was assessed. Twenty-four ethic Iranian women aged between 20 and 42 years with various severity of pregnancy SD enrolled in retrospective case series study. Participants with skin types II-IV were treated in four sessions with a one-month interval by fractional ablative CO2 laser. The severity of striae was determined by Daveys scoring. Clinical improvement was assessed by comparing pretreatment and posttreatment clinical photographs based on global improvement scoring. The evaluation of clinical results showed that fractional ablative CO2 laser was an effective treatment. Twenty of 24 (83.3%) patients showed improvement. Clinical improvement was affected by striae severity (P = 0.03). Also, there were no statistical differences between clinical improvements with skin types, striae scar severity, number of pregnancy, and striae location.

BACKGROUND: Marfan syndrome (MS) (OMIM 154700) has been associated with various skin manifestations.
OBJECTIVE: We sought to clarify the value of skin signs in patients with MS.
METHODS: This was a case-control study. A total of 61 consecutive patients (median age: 34 years) seen in the French Reference Centre for MS and Related Disorders and with a confirmed diagnosis of MS were paired with 61 age-, sex-, and height-paired control subjects. All had a structured interview and standardized dermatologic examination. The gold standard for MS diagnosis was the Ghent criteria.
RESULTS: Striae of any type were significantly (P = .0001) more frequent in patients with MS (92%) than in control subjects (61%), but specificity was low (39%, 95% confidence interval [CI] 27-52). Striae on unusual locations (other than buttock, hip, or thigh) were more frequent in patients with MS (66%) than in control subjects (16%) (P < .0001). This finding had a high specificity (84%, 95% CI 74-93), without notably decreasing sensitivity (66%, 95% CI 54-77). Hypertrophic, large, or atrophic surgical or posttraumatic, frequently hypopigmented or hyperpigmented, scars were present in 46% of patients with MS and 21% of control subjects (P = .007). Sensitivity was 46% (95% CI 34-58) and specificity 79% (95% CI 67-87). Atypical striae in some control subjects could be attributed to intensive practice of sports.
CONCLUSIONS: A few control subjects were selected from patients consulting the MS center but without a diagnosis of MS.
CONCLUSIONS: Striae are a good diagnostic criterion for MS, particularly when arising in unusual sites. Other reported skin signs of MS are infrequent.

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