Background: Microcystic lymphatic malformations (LMs) are congenital lesions with the diameter of the majority of cysts <1 cm. Bleomycin sclerotherapy has been shown to yield beneficial results for macrocystic LMs. This study aims to evaluate the safety and efficacy of consecutive bleomycin sclerotherapy for large diffuse microcystic LMs. Methods: The location and size of the lesions were detected by ultrasound for the 46 patients included in this study. Bleomycin lavage was performed in larger cysts and intradermal injection for the superficial lesion. The outcome and complications were assessed for its efficacy and safety. Results: The large diffuse microcystic LMs mainly located in the neck, abdominal wall and axilla/lateral chest wall. The average lesion size was 10.6 cm × 7.2 cm. The mean number of treatment sessions was 4.5 with 7.3 mg bleomycin for per session averagely. Excellent (69.6%) and moderate (23.9%) responses were obtained. There was no recurrence for the 6 patients (13%) who received a long follow-up. Obvious local swelling, slight intralesional hemorrhage and low-grade fever were the most commonly occurred complications. No lung fibrosis was identified for the patients who received more than 6 sessions. Conclusions: Local lavage combined with intradermal injection of bleomycin is effective and safe for large diffuse microcystic LMs with good therapeutic effect and low complication rates, and can be regarded as the mainstay of therapy for microcystic LMs.

Graphene-structure GeSe₂ nano-films (NFMs) were prepared by chemical vapour deposition. The synthesized GeSe₂ NFMs were characterized by using various techniques such as SEM and XRD. Our work provides a simple and effective method to prepare GeSe₂ NFMs. The GeSe₂ NFM prepared by chemical vapour deposition has good uniformity and compactness, which provides a new process route for the preparation of GeSe₂ NFM.

With the development and application of computer theory, electronic information technology, economics and other disciplines, more and more models are being used to discuss electricity consumption factors. Thesis based on actual data of China, this paper discusses the influence of economic growth, electricity price, urbanization level, industrial structure, science and technology investment level and opening degree on electric power consumption level of our country, and analyses the influence of grey correlation analysis method. To drive electricity consumption, the first is to optimize and upgrade the industrial structure, and the second is to further improve the level of urbanization. The research results of this paper have certain reference value for relevant managers and government departments to formulate policies.