Objective: To investigate the epidemiological characteristics and spatial-temporal clustering of varicella in Changchun City from 2020 to 2024, so as to provide the evidence for formulating local varicella prevention and control measures. Methods: The individual case data of varicella were collected through the Surveillance and Reporting Management System of the Chinese Disease Prevention and Control Information System in Changchun City from 2020 to 2024. Descriptive epidemiological methods were used to analyze the population ,regional, and temporal distribution. Spatial autocorrelation and spatio-temporal scanning analyses were used to identify the spatial-temporal clustering characteristics. Results: A total of 8 850 varicella cases were reported in Changchun City from 2020 to 2024, with an average annual incidence of 19.64/105. There were 4 929 male cases and 3 921 female cases, with a male-to-female ratio of 1.26∶1. The age was mainly 0-<20 years (6 649 cases, 75.13%), and students were the predominant occupation (6 036 cases, 68.20%). The top three counties (cities, districts) with the highest number of cases were Chaoyang District (1 944 cases), Gongzhuling City (1 054 cases) and Nanguan District (987 cases), accounting for 45.03%. The peak incidence periods were from April to June and from October to December, with 2 166 and 4 226 cases, accounting for 24.47% and 47.75%, respectively. Spatial autocorrelation analysis showed that spatial clustering existed from 2020 to 2024. The high-high clustering areas were mainly some townships (streets) in Chaoyang District, Nanguan District, Changchun New District and Jingyue District. Spatio-temporal scanning analysis identified 6 high-risk clustering areas. The class Ⅰ clustering area was Nanhu Street in Chaoyang District, with the clustering period from September 2020 to February 2022. Conclusions Varicella cases in Changchun City were mainly males and students aged 0-<20 years from 2020 to 2024. The peak incidence was mainly in winter. Chaoyang District was a high-risk area, with obvious spatial-temporal clustering.

ObjectiveTo evaluate the clinical effect of holmium laser lithotripsy combined with fiber choledochoscope in the treatment of intra- and extra-hepatolithiasis. MethodsSixty-four patients who were diagnosed with intra- and extra-hepatolithiasis in our hospital from January 2012 to July 2014 were assigned to receive fiber choledochoscope treatment (33 cases) or holmium laser lithotripsy combined with fiber choledochoscope (31 cases). The one-time stone removal rate and incidence of complications were compared between the two groups. Comparison of categorical data was made by chi-square test, while comparison of continuous data was made by t test. ResultsThe fiber choledochoscope group had a significantly lower one-time stone removal rate and a significantly higher incidence of complications compared with the combination therapy group (72.73% (24/33) vs 93.55% (29/31), χ2=4.868, P=0.027; 21.21%(7/33) vs 323%(1/31), χ2=4.728, P=0.030). ConclusionHolmium laser combined with fiber choledochoscope can effectively increase the one-time stone removal rate and reduce the incidence of complications in patients with intra- and extra-hepatolithiasis. This therapy holds promise for clinical application.

Objective To investigate the surgical management of atrophic gallbladder.Methods The clinical data of 85 patients with atrophic gallbladder surgically treated in our hospital from October 2002 to October 2005 were retrospectively analyzed.Results There were 3 cases of iatrogenic bile duct damage,2 of enteral damage,1of post operative remaining small gall bladder,1 of remain ingstonesinthe bile duct and 1 of gallstone ileum.Two 2 patients died after operation.Conclusion Atrophic cholecystitis is always accompanied by many complex clinical problems.Adoption of proper surgical methods can lower the incidence of postoperative complications.