Objective: To explore the epidemiologic characterization of high-risk human papillomavirus (HR-HPV) infection and genotype distribution of HR-HPV among women in rural areas of China. Methods: This study used multiple layers of stratified cluster random sampling method. During January to December in 2014, 117 counties of 27 provinces were selected as the HPV test screening pilot project counties. The women aged 35-64 years with rural areas Hukou in these project counties were selected as the study subjects. A total 457 799 women received HPV DNA test. Among them, 118 237 women from 32 counties in 11 provinces received qualified HPV DNA test by fluorescent PCR to detect HPV genotypes. Results: Among 118 237 rural women, the overall HR-HPV positive infection rate was 7.8% (9 249/118 237). The infection rate increased with age and reached an infection peak at the 60-64 age groups (9.9%, 831/8 394). The HR-HPV positive infection rate in western regions (6.9%, 2 144/31 130) was statistical significantly lower than in central regions (8.2%, 1 894/23 023) and eastern regions (8.1%, 5 211/64 084) (χ²=51.46, P<0.001). Among 9 249 women with specific genotypes of HR-HPV, 6 496 (97.6%) cases were infected with single HR-HPV type, and 163 cases (2.4% ) were infected with multiple types. HR-HPV type 52, 16 and 58 were the most common infection types in rural areas of China. The single infection rates were 20.9% (1 355/6 496), 18.7% (1 215/6 496), and 11.2% (725/6 496), respectively. The multiple infection rates were 47.2% (77/163), 17.8% (29/163), and 18.4% (30/163), respectively. Conclusion The HR-HPV positive infection rate in rural areas of Chinese woman was 7.8%, western region has lower infection rate compared with central and eastern regions. HPV 52 was first of the most common genotypes in rural areas of China.

Objective To predict the presence of MVI,the general clinicopathological of HCC patients' data of the preoperative neutrophil-lymphocyte ratio (NLR),platelet-lymphocyte ratio (PLR),altplatelet ratio (APRI) were evaluated.Methods 143 cases of HCC patients who underwent radical resection and ≤ 5 cm of tumor diameter in Chifeng Clinical Medical School of Inner Mongolia Medical University from January 2011 to December 2014 were analysed retrospectively and followed up.The relationship between NLR,PLR,APRI and other clinical parameters was evaluated.Results According to ROC Curve,the NLR truncation value was 2.00,PLR to 115.00,APRI 1.6.The single factor analysis of x2 test showed that NLR (x2=6.419;P＜0.05),APRI (x2=3.975;P＜0.05),AFP (x2=33.37;P＜0.05),Degree of differentiation (x2 =9.839;P＜0.05) were significant differences between MVI positive (MVI+) and negative (MVI-) groups,and the difference was statistically significant;Logistic regression multifactor analysis showed that NLR (OR 2.678;95％ CI 1.033～6.944;P＜0.05) and AFP (OR 1.724;95％CI 1.023～2.905;P＜0.05) are independent predictors of MVI.Conclusion Preoperative NLR and AFP are convenient,economical and reliable hematological indices for predicting the presence of MVI in HCC patients.

Objective:To analyze the intensity-modulated radiotherapy (IMRT) process based on the TG100 report, aiming to improve the quality control method and guarantee the safety and quality of IMRT.Methods:Based on the TG100 report, a risk analysis team was established. The flow chart of overall and each sub-step of IMRT was constructed. The failure mode and effect analysis method were adopted to determine all potential error modes in the process. The probability of of the error mode, the probability of being checked out and the severity of the effect of the error mode on the clinical bed were evaluated based on the pre-set scoring standard. The priority value of each error mode was calculated and ranked from high to low priority value. The top 20% is defined as the high-risk error mode, which was analyzed by error tree to improve the quality control method.Results:IMRT consisted of 11 main steps and 41 sub-steps, and 180 failure modes were detected. The priority values were ranged from 30 to 178. A total of 36 high-risk failure modes were found. The top 5 high-risk failure modes (RPN) consisted of setup error (178), electronic portal imaging device (EPID) registration (172), contouring error (166), treatment delivery error (160) and prescription dose error (156).Conclusion:TG100 report is practical and convenient to utilize, which can effectively and systematically improve IMRT process and provide safety and quality assurance of IMRT process.

Since December 2019, a novel coronavirus (2019-nCoV, SARS-CoV-2) pneumonia (COVID-19) outbreak has occurred in Wuhan, Hubei Province, and the epidemic situation has continued to spread. Such cases have also been found in other parts of the country. The spread of the novel coronavirus pneumonia epidemic has brought great challenges to the clinical practice of thoracic surgery. Outpatient clinics need to strengthen the differential diagnosis of ground glass opacity and pulmonary plaque shadows. During the epidemic, surgical indications are strictly controlled, and selective surgery is postponed. Patients planning to undergo a limited period of surgery should be quarantined for 2 weeks and have a nucleic acid test when necessary before surgery. For patients who are planning to undergo emergency surgery, nucleic acid testing should be carried out before surgery, and three-level protection should be performed during surgery. Patients who are planning to undergo emergency surgery in the epidemic area should be confirmed with or without novel coronavirus pneumonia before operation, and perform nucleic acid test if necessary. Surgical disinfection and isolation measures should be strictly carried out. Among postoperative patients, cases with new coronavirus infection were actively investigated. For the rescue of patients with novel coronavirus infection, attention needs to be paid to prevention and treatment and related complications, including mechanical ventilation-related pneumothorax or mediastinal emphysema, and injury after tracheal intubation.