血管腫・血管奇形の全国実態調査に向けての予備調査結果の報告

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  • A National Epidemiological Survey of Vascular Anomalies in Japan: Results of a Pilot Survey

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No systemic epidemiological surveys have been performed on vascular anomalies in Japan. We planned to perform the first large, multicenter survey to assess the current status of medical practice for vascular malformations. In this study, we present the results of a pilot survey. This study focused on 343 patients from 5 institutions (130 men and 213 women; mean age, 27.4 years). The lesions had most commonly appeared at birth (23.3%) or by the age of 5 years (23.3%). The lower extremities were the most commonly involved area (36.0%), followed by the head and neck (35.5%). Pain and swelling were the most common symptoms (47.8 and 48.4%, respectively). Venous malformation was the most common subtype of vascular malformation (64.4%). Sclerotherapy, the most common treatment, was performed in 164 patients (47.8%). The symptoms were cured or alleviated in 82.6% of patients who underwent treatment.

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