Objective To discuss the surgical method and efficacy of adult Dandy-Walker syndrome ( DWS) through retrospective anal-ysis and literature review .Methods There were 3 cases of adult DWS in our hospital from August 2010 to August 2011.One case of them was given posterior cranial fossa cyst peritoneal shunt , and the surgery adopted ordinary high voltage shunt .Case 2 was given left side of the lateral ventricle peritoneal shunt , and the surgery adopted ordinary high voltage shunt .Case 3 was given posterior cranial fossa cyst peritoneal shunt combined with left side of the lateral ventricle peritoneal shunt , and the surgery adopted double-end high voltage shunt .The two ends of the shunt were respectively linked with the diverter valve and abdominal cavity drainage tube through T -branch pipe .Results Among the 3 patients, there was 1 case failed to ease the headache symptoms , and it was relieved one month later .The preoperative symptoms of the oth-er 2 cases disappeared immediately after the surgery .During the 4 years of follow-up,preoperative symptoms of the 3 patients disappeared , and there was no positive signs .Conclusion For adult patients with symptomatic DWS ,shunt surgery can eliminate symptoms ,relieve the tension of the posterior fossa cyst ,achieve good curative effect , and there was no surgical complication .

Objective To analyze the epidemiological characteristics of mumps in Guangxi from 2011 to 2019, and to provide a scientific basis for formulating effective prevention and control strategies. Methods Descriptive epidemiological method was used to analyze the incidence data of mumps in Guangxi from 2011 to 2019. Results From 2011 to 2019, a total of 146,132 cases of mumps were reported in Guangxi, with an average annual incidence rate of 34.23 /100 000. There were 88,919 male cases (60.85%) and 57,213 female cases (39.15%). The incidence rate decreased from 62.26/100 000 in 2011 to 16.46/100 000 in 2015, and increased from 18.60/100 000 in 2016 to 46.90/100 000 in 2019. There were seasonal variations in the incidence, with the incidence peaks occurring from April to July and from October to the following January. 85.39% of cases were under 15 years of age, and 76.82% of cases were among kindergarteners or school children. A total of 228 mumps outbreaks were reported during 2011-2019，including 5,347 cases, accounting for 3.66% of the total cases. The incidence rates of mumps in Nanning (56.09/100 000), Hechi (48.26/100 000), Liuzhou (46.77/100 000), Baise (46.34/100 000) and Fangchenggang (40.68/100,000) were relatively higher than other places. Conclusion The mumps incidence is on an upward trend in Guangxi since 2015-2019, occurring mainly in older children or students. It is suggested to adhere to the second dose of mumps containing vaccine for kindergarten and school children and strengthen the surveillance and outbreak control of mumps in schools.