OBJECTIVE:At present,there are many reports on the related factors associated with the incidence of cervical spine instability in patients with rheumatoid arthritis,but there are problems such as small sample size and many confounding factors,and the research results of various studies on the same related factors are also different.This article analyzed the factors related to cervical spine instability in patients with rheumatoid arthritis by means of a systematic review. METHODS:Articles related to cervical spine instability in patients with rheumatoid arthritis were collected by searching both Chinese and English databases until March 2023.The outcome of cervical spine instability in patients with rheumatoid arthritis was used as the grouping criterion to abstract basic information,baseline patient characteristics,laboratory-related tests,medication use,and other relevant risk factors.Meta-analysis was done using Stata 14.0 software. RESULTS:(1)Sixteen relevant studies,all of moderate or above quality,were included,including seven studies with case-control studies and nine with cross-sectional studies.The overall incidence of cervical spine instability in patients with rheumatoid arthritis was 43.08%.(2)Meta-analysis showed:Related risk factors included female(OR=0.60,95%CI:0.44-0.82,P=0.002);age at disease onset(SMD=-0.52,95%CI:-0.86 to-0.18,P=0.003);duration of disease(SMD=0.58,95%CI:0.14-1.02,P=0.01);body mass index(OR=0.74,95%CI:0.63-0.88,P=0.001);rheumatoid factors positive univariate analysis subgroup(OR=1.33,95%CI:1.02 to 1.72,P=0.04),C-reactive protein(SMD=0.26,95%CI:0.16-0.35,P=0.00),erythrocyte sedimentation rate(SMD=0.15,95%CI:0.002-0.29,P=0.047),anti-cyclic-citrullinated peptide antibodies(OR=1.73,95%CI:1.19-2.51,P=0.004),28-joint Disease Activity Score(SMD=0.20,95%CI:0.04-0.37,P=0.02),destruction of peripheral joints(OR=2.48,95%CI:1.60-3.85,P=0.00),and corticosteroids(OR=1.91,95%CI:1.54-2.37,P=0.00)were strongly associated with the development of rheumatoid arthritis-cervical spine instability.Female and corticosteroid use were independently associated with the occurrence of rheumatoid arthritis-cervical spine instability. CONCLUSION:Based on clinical evidence from 16 observational studies,the overall incidence of rheumatoid arthritis-cervical spine instability was 43.08%.However,the incidence of cervical spine instability in rheumatoid arthritis patients varied greatly among different studies.Gender(female)and the use of corticosteroids were confirmed as independent correlation factors for the onset of cervical spine instability in patients with rheumatoid arthritis.The results of this study still provide some guidance for early clinical recognition,diagnosis,and prevention of rheumatoid arthritis-cervical spine instability.

As public hospitals continue to expand,buildings continue to age,sporadic renovation projects are increas-ing,and expenditures are increasing.In order to ensure the safe,stable and efficient operation of the hospital,the piecemeal re-pair project has become an important basic guarantee for the hospital.There are many kinds of sporadic repair projects,and the projects are trivial and scattered.The contradictions among the needs,cost control,management ability and service quality of sporadic repair projects are becoming increasingly prominent,which has become the difficulty and pain point of logistics service management.In the practice of hospital sporadic repair project management,the traditional project management mode is broken,the whole process of fine management system is established,the level of management personnel and the whole process of the pro-ject are effectively integrated,and the management ability and service quality of sporadic maintenance projects are comprehensive-ly improved.

Objective:To investigate the efficacy and safety of the rotational arch method of revealing the spinal canal and implanting back in resection of benign intravertebral tumours.Methods:A total of 17 patients with benign intravertebral tumors of the thoracolumbar spine who underwent a rotational arch method of revealing the spinal canal and implantation back in combination with tumor resection in Luoyang Orthopaedic-Traumatological Hospital of Henan Province from April 2017 to October 2022 were retrospectively analyzed. There were 9 males and 8 females, aged 58.59±13.57 years (range, 29-75 years). There were 7 cases of thoracic intravertebral tumors, 2 cases of thoracolumbar intravertebral tumors, and 8 cases of lumbar intravertebral tumors. The operated segments were 6 cases of single-segment, 8 cases of double-segment, and 3 cases of triple-segment. The disease duration was 20.35±16.58 months (range, 3-60 months). Histopathology showed 9 cases of schwannoma, 5 cases of meningioma, 2 cases of teratoma, and 1 case of dermoid cyst. The operation time, intraoperative blood loss, postoperative spinal canal volume, stability of internal fixation, and lamina healing were recorded. The Cobb angle, American Spinal Injury Association (ASIA) classification and Oswestry disability index (ODI) were compared before and after operation.Results:All patients were successfully operated and followed up for an average of 10.5±2.4 months (range, 6-20 months). The operation time was 156.76±26.81 min (range, 120-210 min) and intraoperative bleeding was 338.24±97.68 ml (range, 200-600 ml). There was no neurovascular injury during the operation. Incomplete spinous process fracture occurred in 1 case due to excessive exertion, which healed well without special treatment. Postoperative drainage volume was 147.06±31.58 ml (range, 100-210 ml). The patient's local Cobb angle was 14.15°±6.58° preoperatively and 14.73°±6.34° postoperatively, with no statistically significant difference ( t=1.810, P=0.089). The patient's ODI was 63.65%±6.57% preoperatively and decreased to 23.88%±4.21% at the final follow-up, with statistically significant difference ( t=53.359, P<0.001). In 17 patients, there were 2 cases of ASIA grade B, 9 cases of grade C, and 6 cases of grade D before operation, and 1 case of ASIA grade B, 4 cases of grade C, 8 cases of grade D, and 4 cases of grade E at the final follow-up, which was a significant improvement compared with the preoperative period, and the difference was statistically significant ( Z=2.587, P=0.010). All patients' incisions healed at stage I, and none of them had complications such as cerebrospinal fluid leakage and epidural haematoma. Three-dimensional CT of the spine at 6 months after operation showed that none of the patients had displacement of the vertebral plate, loosening of the internal fixation, infection or fracture. Conclusion:The rotational arch method of revealing the spinal canal and implantation back in combination with tumor resection for the treatment of benign intravertebral canal tumors has good postoperative neurological function recovery and a low complication rate, which is a safe and effective surgical procedure for the treatment of benign intravertebral canal tumours.

Objective:We aimed to develop a novel visualized model based on nomogram to predict postoperative overall survival.Methods:This was a multicenter, retrospective, observational cohort study, including participants with histologically confirmed gastric and colorectal cancer who underwent radical surgery from 11 medical centers in China from August 1, 2015 to June 30, 2018. Baseline characteristics, histopathological data and nutritional status, as assessed using Nutrition Risk Screening 2002 (NRS 2002) score and the scored Patient-Generated Subjective Global Assessment, were collected. The least absolute shrinkage and selection operator regression and Cox regression were used to identify variables to be included in the predictive model. Internal and external validations were performed.Results:There were 681 and 127 patients in the training and validation cohorts, respectively. A total of 188 deaths were observed over a median follow-up period of 59 (range: 58 to 60) months. Two independent predictors of NRS 2002 and Tumor-Node-Metastasis (TNM) stage were identified and incorporated into the prediction nomogram model together with the factor of age. The model's concordance index for 1-, 3- and 5-year overall survival was 0.696, 0.724, and 0.738 in the training cohort and 0.801, 0.812, and 0.793 in the validation cohort, respectively.Conclusions:In this study, a new nomogram prediction model based on NRS 2002 score was developed and validated for predicting the overall postoperative survival of patients with gastric colorectal cancer. This model has good differentiation, calibration and clinical practicability in predicting the long-term survival rate of patients with gastrointestinal cancer after radical surgery.

Objective To investigate the relationships of pre-radiotherapy body weight,gender,age,EBVDNA,hemoglobin,plasma albumin,and induction chemotherapy regimen with the changes of target area and lymph node volume in adaptive radiotherapy,so as to provide a reference for the timing and population selection of adaptive radiotherapy.Methods A retrospective analysis was conducted on 34 patients who received the first course of radiotherapy at Sun Yat-sen University Cancer Center from January 2022 to November 2022.All patients underwent CT scans again after 20 sessions of radiotherapy for developing the secondary radiotherapy plans.The body weight,gender,age,tumor stage,hemoglobin,plasma albumin,induction chemotherapy regimen,and EBVDNA were collected.Results The tumor volume reduction in the primary focus was more evident in patients with pre-treatment plasma albumin≥40 g/L than in those with pre-treatment plasma albumin<40 g/L(t=3.971,P=0.001),and in patients with pretreatment EBVDNA≤4000 copies/mL than in those with pretreatment EBVDNA>4000 copies/mL(t=4.080,P=0.001).Pearson analysis showed that GTVnx volume difference was positively correlated with pre-radiotherapy GTVnx volume(r=0.444,P=0.009),right parotid gland volume difference(r=0.737,P<0.001),left parotid gland volume difference(r=0.435,P=0.010),and hemoglobin(r=0.722,P<0.001).Conclusion The reduction in tumor volume during radiotherapy is more pronounced in nasopharyngeal cancer patients with normal plasma albumin level and those with pretreatment EBVDNA≤4000 copies/mL.The pre-radiotherapy treatment volume of primary focus,parotid gland volume change before and after radiotherapy,and pre-radiotherapy EBVDNA,hemoglobin and plasma albumin levels can be used to predict the degree of tumor volume shrinkage during radiotherapy,providing a reference for the selection of the timing of adaptive radiotherapy for nasopharyngeal carcinoma.

Coronavirus disease 2019 (COVID-19) is an acute respiratory infectious disease caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. It is highly contagious and can cause death in severe cases. As reported by the World Health Organization (WHO), as of 6:36 pm Central European Summer Time (CEST), 12 August 2022, there had been 585 950 285 confirmed cases of COVID-19, including 6 425 422 deaths (WHO, 2022).
Humans ; COVID-19 ; SARS-CoV-2 ; Mental Health ; Cohort Studies ; Quality of Life ; China/epidemiology* ; Health Personnel ; Hospitals ; Lung

As for the treatment of microtia, the status quo is as follows. The ear reconstruction with autologous costal cartilage has been generally accepted as the therapeutic strategy for type Ⅲ/Ⅳ patients with only small ear lobe remaining or complete absence of auricle, and the outcomes are improved steadily with the advances in technology; but for type Ⅰ/Ⅱ patients with larger remnant ear, there is insufficient evidence to be able to support any specific treatment methods as the potential unified approach for surgeons to choose from. Non-surgical treatment with appliance wearing may play an auxiliary role in the treatment of microtia, which is worthy of further research. The authors proposed a serialized treatment system based on their clinical practice and literature review. It is expected to be helpful for the treatment of microtia.

As for the treatment of microtia, the status quo is as follows. The ear reconstruction with autologous costal cartilage has been generally accepted as the therapeutic strategy for type Ⅲ/Ⅳ patients with only small ear lobe remaining or complete absence of auricle, and the outcomes are improved steadily with the advances in technology; but for type Ⅰ/Ⅱ patients with larger remnant ear, there is insufficient evidence to be able to support any specific treatment methods as the potential unified approach for surgeons to choose from. Non-surgical treatment with appliance wearing may play an auxiliary role in the treatment of microtia, which is worthy of further research. The authors proposed a serialized treatment system based on their clinical practice and literature review. It is expected to be helpful for the treatment of microtia.

Objective:To investigate the influencing factors for lung metastasis of hepato-cellular carcinoma after liver transplantation and application value of its nomogram prediction model.Methods:The retrospective cohort study was conducted. The clinicopathological data of 339 hepatocellular carcinoma patients with lung metastasis after liver transplantation who were admitted to Zhongshan Hospital of Fudan University from January 2015 to June 2019 were collected. There were 299 males and 40 females, aged from 23 to 73 years, with a median age of 54 years. According to the random numbers showed in the computer, all 339 patients were divided into training dataset consisting of 226 and validation dataset consisting of 113, with a ratio of 2:1. All patients underwent classic orthotopic liver transplantation. Observation indicators: (1) analysis of clinicopathological data of patients in the training dataset and validation dataset; (2) follow-up; (3) analysis of influencing factors for lung metastasis of hepatocellular carcinoma after liver transplanta-tion; (4) construction and evaluation of nomogram prediction model for lung metastasis of hepatocellular carcinoma after liver transplantation. Follow-up was conducted using outpatient examination and telephone interview to detect lung metastasis of patients up to November 2020. Measurement data with normal distribution were represented as Mean± SD, and comparison between groups was conducted using the paired t test. Measurement data with skewed distribution were represented as M( P25, P75) or M(range), and comparison between groups was conducted using the Mann-Whitney U test. Count data were described as absolute number or percentages, and comparison between groups was conducted using the chi-square test. The Kaplan-Meier method was used to calculate lung metastasis rate and draw lung metastasis curve. The Log-rank test was used for survival analysis. The COX proportional hazard model was used for univariate and multivariate analysis. Based on the results of multivariate analysis, the nomogram prediction model was constructed. The prediction accuracy of the nomogram model was evaluated using C-index and receiver operating characteristic (ROC) curve. The calibration curve was used to evaluate the prediction error of the model. Results:(1) Analysis of clinicopathological data of patients in the training dataset and validation dataset: there was no significant difference in general data between patients in the training dataset and validation dataset ( P>0.05). (2) Follow-up: 226 patients in training dataset and 113 patients in validation dataset were followed up. The follow-up time of training dataset was 5.2 to 69.0 months, with a median follow-up time of 29.3 months, and the follow-up time of validation dataset was 4.3 to 69.0 months, with a median follow-up time of 30.4 months. Up to the last follow-up, 48 cases of the training dataset and 22 cases of the validation dataset had lung metastasis, with the incidence and median time of lung metastasis were 21.24%(48/226), 19.47%(22/113) and 8.5 months, 7.8 months, respectively. There was no significant difference in lung metastasis between patients in the training dataset and validation dataset ( χ2=0.144, P>0.05). (3) Analysis of influencing factors for lung metastasis of hepatocellular carcinoma after liver transplantation: results of univariate analysis showed that age, alpha fetoprotein, tumor diameter, tumor differentiation degree, vascular invasion, systemic immune inflammation index and postoperative treatment were related factors for lung metastasis of hepatocellular carcinoma after liver transplantation ( hazard ratio=0.465, 3.413, 1.140, 3.791, 2.524, 2.053, 1.833, 95% confidence interval as 0.263?0.822, 1.740?6.695, 1.091?1.191, 1.763?8.154, 1.903?3.349, 1.047?4.027, 1.038?3.238, P<0.05) . Results of multivariate analysis showed that age, tumor diameter and vascular invasion were independent influencing factors for lung metastasis of hepatocellular carcinoma after liver transplantation ( hazard ratio=0.462, 1.076, 2.170, 95% confidence interval as 0.253?0.843, 1.013?1.143, 1.545?3.048, P<0.05). (4) Construction and evaluation of nomogram prediction model for lung metastasis of hepatocellular carcinoma after liver transplantation: the C-index was 0.810 (95% confidence interval as 0.758?0.863) and 0.802 (95% confidence interval as 0.723?0.881) of the nomogram prediction model for lung metastasis of hepatocellular carcinoma after liver transplanta-tion in the training dataset and validation dataset, respectively, showing good discrimination ability. The area under ROC of 0.5-, 1- and 2-year nomogram prediction model in the training dataset and the validation dataset were 0.815(95% confidence interval as 0.725?0.905), 0.863(95% confidence interval as 0.809?0.917), 0.835(95% confidence interval as 0.771?0.900)and 0.873(95% confidence interval as 0.801?0.945), 0.858(95% confidence interval as 0.760?0.956), 0.841(95% confidence interval as 0.737?0.945), respectively, which illustrated that the model had good predictive ability. The formula of nomogram prediction model=33.300 06+(?33.300 06)×age(≤50 years=0, >50 years=1)+2.857 14×tumor diameter (cm)+31.585 71×vascular invasion (M0 stage of microvascular invasion staging=0, M1 stage of microvascular invasion staging=1, M2 stage of microvascular invasion staging=2, visible tumor thrombus=3). The optimal threshold of nomogram risk score was 77.5. Patients with risk score ≥77.5 were assigned into high risk group, and patients with risk score <77.5 were assigned into low risk group. The 0.5-,1- and 2-year lung metastasis rate of patients in the high risk group and low risk group of the training dataset were 16.7%, 39.2%, 46.4% and 1.4%, 4.1%, 6.9%, respectively, showing a significant difference between the two groups ( χ2=54.86, P<0.05). The 0.5-,1- and 2-year lung metastasis rate of patients in the high risk group and low risk group of the validation dataset were 17.6%, 29.0%, 39.5% and 0, 3.1%, 4.8%, respectively, showing a significant difference between the two groups ( χ2=25.29, P<0.05). Conclusions:Age, tumor diameter and vascular invasion are independent influencing factors for lung metastasis of hepatocellular carcinoma after liver transplantation. The nomogram prediction model based on age, tumor diameter and vascular invasion can predict risk of lung metastasis for hepatocellular carcinoma patients after liver transplantation accurately.

Objective To determine whether relative abundance of epidermal growth factor receptor (EGFR) mutations in plasma predicts clinical response to epidermal growth factor receptor-tyrosine kinase inhibitors (EGFR-TKIs) in patients with advanced lung adenocarcinoma. Methods In this prospective study, adult patients with advanced lung adenocarcinoma were enrolled in our hospital from 1 April 2016 to 1 January 2017. EGFR mutations in tumor tissues were detected by ADx-amplification refractory mutation system (ADx-ARMS). EGFR mutations of plasma free tumor DNA were detected by ADx-ARMS and ADx-super amplification refractory mutation system (ADx-SuperARMS) at the same time. Patients with EGFR-mutant in tumor tissues and receiving EGFR-TKIs were finally enrolled. Plasma mutation-positive patients with both methods were high abundance group.Patients with positive mutations by ADx-SuperARMS but negative by ADx-ARMS were medium abundance group. Mutation-negative patients with both methods were recognized as low abundance group. The correlation between EGFR mutation abundance and clinical response to EGFR-TKIs were analyzed. Results Among 71 patients enrolled, 42 harbored EGFR mutations in plasma were detected by ADx-ARMS, while 53 were found by ADx-SuperARMS.There were 42 patients in high abundance group, 11 in medium group while the other 18 in low group. The objective response rates (ORRs) were 69.0%,7/11 and 10/18 in high, medium and low groups, respectively. The difference was significant between high and low abundances groups (P=0.006). Median progression-free survival (PFS) in high,medium and low groups were 11.0, 8.5 and 9.0 monthes, respectively (P<0.001). In patients with tumor 19-Del, the ORRs were 70.4%,5/7 and 6/11 in high,medium and low abundance groups, respectively. The median PFS of high abundance group was significantly longer than the other two groups (12.0 monthes vs 9.0, 9.0 monthes). As to subjects with L858R mutation, the ORRs were 10/15,2/4 and 3/6,respectively, with median PFS 9.6, 5.5 and 9.5 monthes. Conclusions The relative abundance of EGFR mutations in plasma predicts clinical response to EGFR-TKIs in patients with advanced lung adenocarcinoma. The higher the mutation abundance is, the better the efficacy of EGFR-TKIs is.