Abstract

Vascular malformations are congenital abnormalities that result from disturbances in the embryologic development of the vascular system. A retrospective study at a single institution was performed to determine the localization and treatment patterns for vascular malformations in children. A total of 198 pediatric patients were identified. Age at diagnosis and presentation, sex, localization, diagnostics, and therapy were described. The most common diagnosis was lymphatic malformation (LM, 58.6%), followed by venous (VM, 31.8%) and arteriovenous malformation (AVM, 4.5%). The mean age at diagnosis was 2.2 years, while the mean age at presentation at our hospital was 7.2 years. The sex ratio showed a female predominance (1.44:1), which was most evident in children with AVM. The neck, cheek/parotid gland and oral cavity were the most predominant locations. Half of the patients required at least one intervention at our hospital. Especially, CM and LM were managed by watch-and wait, whereas lymphovenous malformation (LVM) and AVM were most often treated. Treatment differed between the various malformation types, the most common used treatment was conventional surgery followed by laser therapy. In case of treatment, the average number of procedures in our hospital was 1.58 for VM, 1.53 for LM, 1.33 for AVM, and 1.0 for LVM. In children with vascular malformations interventional treatment is often necessary, in many cases more than one treatment step is needed. Correct identification of the malformation type is important for optimal treatment and appropriate care of patients with vascular malformations.

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