Objective:To compare the efficacy and safety of internal fixation using the olecranon osteotomy approach versus the bilateral triceps approach for the treatment of AO type C distal humeral fractures.Methods:We conducted a systematic search of China National Knowledge Infrastructure (CNKI), Wanfang, VIP, Chinese Medical Journal Full-Text Database, PubMed, Embase, Web of Science, and Cochrane Library for clinical studies comparing the olecranon osteotomy approach with the bilateral triceps approach for the treatment of AO type C distal humeral fractures. The search period was from January 2017 to March 2023. A meta-analysis was performed on the included studies. Random-effects models were used for analyses with high inter-group heterogeneity, while fixed-effects models were applied for those with low inter-group heterogeneity.Results:A total of 15 studies were included in the meta-analysis, comprising 480 cases treated via the olecranon osteotomy approach and 443 cases via the bilateral triceps approach. Meta-analysis results showed that the olecranon osteotomy approach was associated with longer operative time [ SMD=0.96, 95% CI(0.23, 1.70), P=0.010] and more intraoperative blood loss [ SMD=1.00, 95% CI(0.22, 1.78), P=0.012]compared to the bilateral triceps approach. There were no statistically significant differences between the two groups in postoperative Mayo Elbow Performance Score [ SMD=0.55, 95% CI(-0.23, 1.32), P=0.167], excellent and good reduction rate [ OR=0.98, 95% CI(0.75, 1.27), P=0.856], postoperative complication rate [ OR=1.27, 95% CI(0.77, 2.09), P=0.344], healing time [ SMD= -0.13, 95% CI(-0.37, 0.11), P=0.280], and range of motion of the elbow joint [ SMD=-0.02, 95% CI(-0.29, 0.26), P=0.891]. Conclusion:The bilateral triceps approach for internal fixation of AO type C distal humeral fractures is associated with shorter operative time and lower intraoperative blood loss compared to the olecranon osteotomy approach. The bilateral triceps approach for internal fixation of AO type C distal humeral fractures is associated with shorter operative time and lower intraoperative blood loss compared to the olecranon osteotomy approach.

Objective:To understand the epidemiological characteristics of human respiratory syncytial virus (HRSV) among acute respiratory infection (ARI) cases in 16 provinces of China from 2009 to 2023.Methods:The data of this study were collected from the ARI surveillance data from 16 provinces in China from 2009 to 2023, with a total of 28 278 ARI cases included in the study. The clinical specimens from ARI cases were screened for HRSV nucleic acid from 2009 to 2023, and differences in virus detection rates among cases of different age groups, regions, and months were analyzed.Results:A total of 28 278 ARI cases were enrolled from January 2009 to September 2023. The age of the cases ranged from<1 month to 112 years, and the age M ( Q1, Q3) was 3 years (1 year, 9 years). Among them, 3 062 cases were positive for HRSV nucleic acid, with a total detection rate of 10.83%. From 2009 to 2019, the detection rate of HRSV was 9.33%, and the virus was mainly prevalent in winter and spring. During the Corona Virus Disease 2019 (COVID-19) pandemic, the detection rate of HRSV fluctuated between 6.32% and 18.67%. There was no traditional winter epidemic peak of HRSV from the end of 2022 to the beginning of 2023, and an anti-seasonal epidemic of HRSV occurred from April to May 2023. About 87.95% (2 693/3 062) of positive cases were children under 5 years old, and the difference in the detection rate of HRSV among different age groups was statistically significant ( P<0.001), showing a decreasing trend of HRSV detection rate with the increase of age ( P<0.001). Among them, the HRSV detection rate (25.69%) was highest in children under 6 months. Compared with 2009-2019, the ranking of HRSV detection rates in different age groups changed from high to low between 2020 and 2023, with the age M (Q1, Q3) of HRSV positive cases increasing from 1 year (6 months, 3 years) to 2 years (11 months, 3 years). Conclusion:Through 15 years of continuous HRSV surveillance analysis, children under 5 years old, especially infants under 6 months old, are the main high-risk population for HRSV infection. During the COVID-19 pandemic, the prevalence and patterns of HRSV in China have changed.

Objective:To understand the epidemiological characteristics of human respiratory syncytial virus (HRSV) among acute respiratory infection (ARI) cases in 16 provinces of China from 2009 to 2023.Methods:The data of this study were collected from the ARI surveillance data from 16 provinces in China from 2009 to 2023, with a total of 28 278 ARI cases included in the study. The clinical specimens from ARI cases were screened for HRSV nucleic acid from 2009 to 2023, and differences in virus detection rates among cases of different age groups, regions, and months were analyzed.Results:A total of 28 278 ARI cases were enrolled from January 2009 to September 2023. The age of the cases ranged from<1 month to 112 years, and the age M ( Q1, Q3) was 3 years (1 year, 9 years). Among them, 3 062 cases were positive for HRSV nucleic acid, with a total detection rate of 10.83%. From 2009 to 2019, the detection rate of HRSV was 9.33%, and the virus was mainly prevalent in winter and spring. During the Corona Virus Disease 2019 (COVID-19) pandemic, the detection rate of HRSV fluctuated between 6.32% and 18.67%. There was no traditional winter epidemic peak of HRSV from the end of 2022 to the beginning of 2023, and an anti-seasonal epidemic of HRSV occurred from April to May 2023. About 87.95% (2 693/3 062) of positive cases were children under 5 years old, and the difference in the detection rate of HRSV among different age groups was statistically significant ( P<0.001), showing a decreasing trend of HRSV detection rate with the increase of age ( P<0.001). Among them, the HRSV detection rate (25.69%) was highest in children under 6 months. Compared with 2009-2019, the ranking of HRSV detection rates in different age groups changed from high to low between 2020 and 2023, with the age M (Q1, Q3) of HRSV positive cases increasing from 1 year (6 months, 3 years) to 2 years (11 months, 3 years). Conclusion:Through 15 years of continuous HRSV surveillance analysis, children under 5 years old, especially infants under 6 months old, are the main high-risk population for HRSV infection. During the COVID-19 pandemic, the prevalence and patterns of HRSV in China have changed.