Objective To investigate the prevalence of primary drug resistance among HIV-1 patients in Hubei Province from 2020 to 2022, and to provide corresponding basis and data support for HIV antiviral therapy (ART) in Hubei Province. Methods During 2020-2022, plasma samples of HIV-1 infected patients before ART were collected., Patients’ demographic data and baseline laboratory test data were also collected. HIV-1 pol region was amplified by in-house method for sub-type typing and drug-resistant mutation site analysis. Results The pol gene sequence was successfully amplified in 242 of 285 cases, with a success rate of 84.9%. CRF07_BC was the predominant HIV-1 sub-type, accounting for 47.11% (114/242), followed by CRF01_AE, accounting for 25.21% (61/242), sub-type B, accounting for 14.16% (35/242), and CRF55_01B, accounting for 4.13% (10/242). The primary resistance rate was 6.20% (15/242). The mutation site of nucleoside reverse transcriptase inhibitors (NRTIs) was mainly M184V, and the mutation sites of non-nucleoside reverse transcriptase inhibitors (NNRTIs) were mainly E138A/G/EG and V179E. These different mutation sites led to different degrees of drug resistance to 12 drugs. The incidence of drug resistance mutation of CRF55_01B sub-type was significantly higher than that of other sub-types. Conclusion The primary drug resistance rate of HIV-1 infected patients is at a slightly high level in Hubei Province, and close monitoring of primary drug resistance and mutation sites should be strengthened before ART, especially for CRF55_01B sub-type.

Objective:To investigate the clinical efficacy of ultrasound-guided vacuum-assisted excision (VAE) in the treatment of breast benign phyllode tumor and the risk factors of local recurrence after operation.Methods:A total of 256 cases of patients with breast benign phyllode tumor admitted to Yuncheng Central Hospital from January 2012 to January 2020 were included in the retrospective study, they were all female, of which 160 cases received ultrasound-guided VAE surgical treatment and 96 cases received open surgical treatment. Measurement data were expressed as mean ± standard deviation ( ± s), and t-test was used for comparison between groups. The Chi-square test or Fisher exact probability method was used to compare the data groups. Univariate analysis was performed on the factors related to the local recurrence of benign phyllode tumor after surgery, and then the factors with statistically significant differences in the univariate analysis were further incorporated into multivariate Logistic regression analysis. Results:Univariate analysis results showed that the maximum diameter of tumor ≥25 mm and the history of ipsilateral breast fibroadenoma were associated with postoperative local recurrence of breast benign phyllodes tumor ( P<0.05). Multivariate Logistic regression analysis results showed that tumor diameter ≥25 mm was an independent risk factor for postoperative local recurrence of breast benign phyllodes tumor ( P<0.05). Conclusion:Ultrasound-guided VAE in the treatment of breast benign phyllodes tumor patients with maximum diameter less than 25 mm can reduce the postoperative local recurrence rate, and patients with tumor maximum diameter greater than 25 mm should have the higher local recurrence risk.

Microvascular invasion (MVI) is an independent predictor of early recurrence and poor prognosis following hepatocellular carcinoma (HCC) resection and transplantation. As a novel non-invasive diagnostic tool, radiomics can extract the quantitative imaging features of tumors and peritumoral tissues with high throughput, providing more information on tumor heterogeneity than conventional and functional imaging of visual analysis and having a good application prospect in predicting the presence of MVI in HCC patients, thereby improving the accuracy of HCC diagnosis and prognosis. The value of the multimodal radiomics method based on various imaging methods in evaluating the possibility of MVI in HCC patients is elucidated here in combination with the latest research progress.

Objective:To investigate the prognostic value of Onodera's prognostic nutrition index (PNI) before treatment in patients with cervical and upper thoracic esophageal squamous cell carcinoma (CUTESCC) undergoing definitive chemoradiotherapy (dCRT) and its predictive value in the occurrence of ≥ grade 2 radiation esophagitis (RE).Methods:The data of 163 CUTESCC patients eligible for inclusion criteria admitted to the Fourth Hospital of Hebei Medical University from January 2012 to December 2017 were retrospectively analyzed. The receiver operating characteristic (ROC) curve was used to calculate the best cut-off value of PNI for predicting the prognosis of patients. The prognosis of patients was analyzed by univariate and Cox multivariate analyses. Logistics binary regression model was adopted to analyze the risk factors of ≥ grade 2 RE in univariate and multivariate analyses. The significant factors in logistic multivariate analysis were used to construct nomogram for predicting ≥ grade 2 RE.Results:The optimal cut-off value of PNI was 48.57 [area under the curve (AUC): 0.653, P<0.001]. The median overall survival (OS) and progression-free survival (PFS) were 26.1 and 19.4 months, respectively. The OS ( χ2=6.900, P=0.009) and PFS ( χ2=9.902, P=0.003) of patients in the PNI ≥ 48.57 group ( n=47) were significantly better than those in the PNI < 48.57 group ( n=116). Cox multivariate analysis showed that cTNM stage and PNI were the independent predictors of OS ( HR=1.513, 95% CI: 1.193-1.920, P=0.001; HR=1.807, 95% CI: 1.164-2.807, P=0.008) and PFS ( HR=1.595, 95% CI: 1.247-2.039, P<0.001; HR=2.260, 95% CI: 1.439-3.550, P<0.001). Short-term efficacy was another independent index affecting PFS ( HR=2.072, 95% CI: 1.072-4.003, P=0.030). Logistic multivariate analysis showed that the maximum transverse diameter of the lesion ( OR=3.026, 95% CI: 1.266-7.229, P=0.013), gross tumor volume (GTV) ( OR=3.456, 95% CI: 1.373-8.699, P=0.008), prescription dose ( OR=3.124, 95% CI: 1.346-7.246, P=0.009) and PNI ( OR=2.072, 95% CI: 1.072-4.003, P=0.030) were the independent factors affecting the occurrence of ≥ grade 2 RE. These four indicators were included in the nomogram model, and ROC curve analysis showed that the model could properly predict the occurrence of ≥ grade 2 RE (AUC=0.686, 95% CI: 0.585-0.787). The calibration curve indicated that the actually observed values were in good agreement with the predicted RE. Decision curve analysis (DCA) demonstrated satisfactory nomogram positive net returns in most threshold probabilities. Conclusions:PNI before treatment is an independent prognostic factor for patients with CUTESCC who received definitive chemoradiotherapy. The maximum transverse diameter of the lesion, GTV, prescription dose and PNI are the risk factors for ≥ grade 2 RE in this cohort. Establishing a prediction model including these factors has greater predictive value.

Objective:To analyze the tendency of elderly patients with breast cancer in the choice of treatment methods and related influencing factors.Methods:The data of 312 elderly patients with unilateral breast cancer treated in Yuncheng Central Hospital from January 2013 to December 2017 were collected for retrospective analysis. All patients' treatment options were analyzed, and the age of patients who chose different treatment options was compared. Univariate and logistic regression were used to analyze the chemotherapy choice tendency of elderly breast cancer patients, and Cox proportional risk model was used to analyze the influencing factors of 5-year survival of elderly breast cancer patients.Results:In the whole patient population, the selection rates of surgery, chemotherapy, radiotherapy, endocrine therapy and targeted therapy were respectively 97.44% (304/312), 81.41% (254/312), 7.05% (22/312), 68.27% (213/312), 3.85% (32/312). The mean age of all patients was (67.94±6.55) years. There were no statistically significant differences in the age of patients with different treatment methods (all P>0.05). The results of univariate analysis showed that, there were statistically significant differences in the depth of invasive cancer ( t=3.11, P=0.002), number of axillary lymph node metastasis ( t=6.54, P<0.001), comorbidities ( t=-4.85, P<0.001) and Eastern Cooperative Oncology Group (ECOG) score ( t=-4.56, P<0.001) between chemotherapy and non-chemotherapy patients, and there were no statistically significant differences in age ( t=-0.52, P=0.604), pathological type ( χ2=4.96, P=0.084), surgical type ( χ2=0.21, P=0.899), tumor differentiation degree ( χ2=3.28, P=0.194), estrogen receptor ( χ2=0.99, P=0.321), progesterone receptor ( χ2=0.89, P=0.346), and human epidermal growth factor receptor-2 ( χ2=0.58, P=0.445). The results of multifactor analysis showed that types of comorbidities ( OR=0.91, 95% CI: 0.85-0.99, P=0.024) and ECOG score ( OR=0.95, 95% CI: 0.92-0.99, P=0.007) were independent influencing factors for the use of chemotherapy after surgery in elderly breast cancer patients. A total of 74 patients died within 5 years after surgery, and the 5-year overall survival rate was 76.28%. More axillary lymph node metastasis ( RR=1.26, 95% CI: 1.09-1.46, P=0.001) and more complications ( RR=1.07, 95% CI: 1.02-1.13, P=0.007) were risk factors for prognosis. Conclusion:Surgery and chemotherapy are the main treatment methods for elderly patients with breast cancer. ECOG score and number of complications can directly affect the results of chemotherapy selection for such patients, the number of axillary lymph node metastasis and complications had significant influence on the long-term survival of the patients.

Objective To investigate the value of quantitative evaluation in white matter damage caused by delayed neuropsychiatric sequelae (DNS) after carbon monoxide poisoning (CO) with diffuse kurtosis imaging (DKI).Methods A prospective study was conducted from November 2016 to February 2019 in 28 patients diagnosed as having DNS after CO poisoning and 30 healthy controls in our hospital.DKI scans were performed within 7 d of onset and DKI-derived parameters (9 regions of interest),including mean kurtosis (MK),axial kurtosis (AK),and radial kurtosis (RK),were obtained.Mini Mental State Examination Scale (MMSE),Barthel Index,Verbal Fluency Test (VFT),and Digital Breadth Test (DST) were performed on both subjects to conduct neurocognitive assessment;multivariate regression analysis was performed to determine the statistical relations of scores of above neurocognitive scales with AK values of ROIs.Results As compared with those in the control group,the MK,AK and RK values in all ROIs showed an increased trend in DNS group;among which,the anterior semioval center,posterior semioval center and frontal lobe enjoyed the most obvious increase,with significant differences (P＜0.05).In the genu of corpus callosum,body of corpus callosum and parietal lobe,the AK value of DNS group was significantly higher than that in the controls (P＜0.05).Except for temporal lobe and occipital lobe,area under the curve (AUC) of AK value of other ROIs in diagnosing DNS was larger than that of RK and MK values of other ROIs;AK value of anterior semioval center (AUC=0.802,P=0.000),posterior semioval center (AUC=0.785,P=0.000),frontal lobe (AUC=0.749,P=0.001),genu of corpus callosum,(AUC=0.730,P=0.003),parietal lobe (AUC=0.699,P=0.009) and body of corpus callosum (AUC=0.654,P=0.045) had better performance than RK and MK in diagnosing DNS,with statistically significant differences (P＜0.05).Multivariate regression analysis results show that the DST value (reverse) is the independent influencing factors of AK values of anterior semioval center,genu of corpus callosum,and frontal lobe;VET (vegetable) is the independent influencing factors of AK values of body of corpus callosum,age is the independent influencing factors of AK values of posterior semioval center,splenium of corpus callosum,and frontal,temporal and occipital lobes;and education is the independent influencing factors of AK values of temporal lobe.Conclusion DKI can quantitatively evaluate the microstructural damage of white matter caused by DNS,and the increase of AK is related to the decrease of neurological function in patients with DNS.

Purpose To explore the application value of diffusion kurtosis imaging (DKI) in assessing brain injury in different clinical stages caused by carbon monoxide (CO) poisoning. Materials and Methods MR plain scan, diffusion weighted imaging (DWI) and DKI scans were performed in 26 patients with acute CO poisoning, 17 patients with delayed neuropsychologic sequelae (DNS), 15 patients with chronic phase, and 21 healthy volunteers (control group). The DKI parameter values in regions of interest among the four groups were compared, and the correlation between the values of each parameter and DWI apparent diffusion coefficient (ADC) value was analyzed. Results ①The mean kurtosis (MK) values in the area of pallidum in acute phase, DNS phase, and chronic phase were 1.51±0.15, 1.07±0.11 and 0.59±0.11, respectively; among which the MK value in acute phase was significantly higher than that in the control group (1.06±0.06, P<0.05), and the chronic phase was significantly lower than the DNS phase and the control group (P<0.05); compared with the control group, the MK in centrum semiovale and subcallosal zone was relatively higher in acute phase and DNS phase, lower in chronic phase, both showing the most significant increase in DNS phase (P<0.05). ②In each region of interest, the MK value and mean diffusivity (MD) all showed an increase after decrease. Among them, MD values in the area of pallidum in acute phase were significantly lower than those in DNS and control group (0.74±0.11 vs. 0.85±0.07 and 0.98±0.12, P<0.05), and the centrum semiovale and callosum were the smallest in DNS phase (0.67±0.09 and 0.80±0.05, respectively), significantly lower than that in the control group (P<0.05). ③The fractional anisotropy (FA) values of all regions of interest showed a progressive decrease in different clinical stages, in which pallidum and centrum semiovale were the lowest in chronic phase (0.19±0.04 and 0.22±0.03, respectively), significantly lower than those in DNS phase and the control group (P<0.05). ④There was a positive correlation between MD values and ADC values in different clinical stages of CO poisoning in each region of interest (P<0.01). Conclusion DKI can quantitatively evaluate the changes of brain gray matter microarchitecture after CO poisoning, which is helpful to understand the characteristics of brain injury in different clinical stages caused by CO poisoning from the microscopic level.

Objective To evaluate the safety and efficiency of robot assisted surgery guided by damage control orthopaedics(DCO) in polytraumatised patients with pelvic ring injuries.Methods A retrospective review of the pelvic fracture database was performed.Twenty-six patients who had sustained a pelvic fracture from September 2012 to December 2015 were suitable for robot-assisted minimally invasive internal fixation.They were 17 men and 9 women,aged from 23 to 58 years (average,42.6 years).Their Injury Severity Score(ISS) ranged from 20 to 31 points (average,21.3 years).According to Tile classification,6 cases were type B2,3 type B3,9 type C2 and 8 type C3.Guided by DCO,the vital signs were stabilized by all means and the fractures treated by simple and temporary external fixation before the pelvic and other fractures were managed by the robot-assisted minimally invasive internal fixation.Demographics,times to operating room (TOR),time from acute stabilization to late definitive internal fixation (TAL),time for bone union,type of robot-assisted surgery for major fractures,length of stay (LOS),postoperative complications and mortality were recorded.The outcomes of the pelvis were evaluated at the final follow-up according to the Matta criteria.Results Of the 26 patients,robot-navigated percutaneous screwing was conducted with 23 sacroiliac screws in 19,with 9 ramus pubicus screws in 9,with 6 supraacetabular screws in 4,and with 4 both-column screws in 2 cases.TOR averaged 2.7 times,TAL 5.9 days,LOS at ICU 2.1 days,ICU admission rate 46.2％ (12 of 26),hospital LOS 7.3 days,and time for pelvic bone union 79.0 days.None patients had postoperative complications related to the pelvic fracture and no one died.According to the Matta criteria at the final follow-ups,8 cases were excellent,11 good,5 fair and 2 poor,yielding an excellent and good rate of 73.1％.Conclusion Robot-navigated minimally invasive surgery plus DCO is effective,time saving and safe treatment for polytraumatised patients with pelvic ring injuries.

Objective To understand the influencing factors of the post competency of health technical personnel in township hospitals in a prov-ince,so as to provide scientific reference for improving health professionals'post competency. Methods Using stratified cluster random sam-pling,1242 health professionals from township health centers and village clinics of 14 cities were extracted and then surveyed with questionnaire. Results The average score of the respondents'post competency was 3.43,which meant they could afford most of the work. Multiple linear re-gression analysis showed that the main influencing factors of the professionals'post competency included gender,age,specialty,and training. The female,senior,nursing and health-care professionals with training exhibited a better post competency. Conclusion To realize the further develop-ment of professionals'post competency,medical students should not only be early clinical and more clinical,but also actively participate in the training and continue the education after entering the clinic. On the other hand ,the government should define the function orientation of the town-ship healthy centers and explore human resource management mode based on the post competency.

Early small hepatocellular carcinoma (SHCC) can be cured by surgery and interventional operation to improve the survival rate of paitents,so the accurate diagnosis of SHCC is of great significance.Presently,the dynamic contrast-enhanced MR scan could only obtain single arterial phase imaging by single breath hold,and it had breathing motion artifact because of the long scanning time.The early arterial transient enhancement of SHCC was easy to be misdiagnosed.The CAIPIRINHA-Dixon-TWIST-VIBE (CDT-VIBE) sequence couldobtain high-quality multiple arterial phases images and hepatic arterial dominant (HAD) images in short-time scanning.And it could not only detect small focal lesions which were difficult to find by other imaging examination,but also find the start enhanced difference between lesions which were relevant to lesions property and blood supplement.The CDT-VIBE has a high clinical value in diagnosis and treatment of SHCC.The research progresses of CDT-VIBE in diagnosis of SHCC was reviewed in this article.