Objective:To analyze the status quo and hot topics in research on venous thromboembolism (VTE) prevention during the perioperative period and provide references for future research and clinical practice.Methods:Journal articles related to perioperative VTE prevention were retrieved from the Web of Science Core Collection database up to June 30, 2023. Bibliometric analysis was conducted using CiteSpace 6.2.R4.Results:A total of 1 079 articles were included, showing an overall upward trend in the publication volume of perioperative VTE prevention research from 1999 to 2023. Research themes mainly focused on high-risk populations for VTE, high-risk types of surgery, risk factors and assessment, perioperative prevention, and nursing care. Current hot topics include "risk assessment" "anticoagulation therapy" "guidelines" "aspirin" and "rivaroxaban".Conclusions:Perioperative VTE prevention has increasingly garnered the attention of medical and nursing professionals. Future efforts should emphasize international exchange and cooperation to explore strategies for VTE prevention at different stages of the perioperative period and leverage information technology to enhance the quality of perioperative VTE prevention and management.

Objective To analyze the application value of a Nomogram model established on clinical and ultrasound features of thyroid in modifying classification results of the Chinese Thyroid Imaging Reporting and Data System (C-TI-RADS) by ultrasound physicians. Methods The clinicopathological ultrasound materials of patients with surgical resection for thyroid nodules in Sichuan Provincial People's Hospital (training set, n=841) and Sichuan Mianyang 404 Hospital (external validation set, n=295) from January 2021 to December 2022 were retrospectively analyzed, and preoperative thyroid ultrasound was used to classify thyroid nodules by C-TI-RADS. Univariate and Multivariate Logistic regression analyses were used to screen independent predictors in the training set and a Nomogram model was constructed, and Bootstrap resampling was used for internal validation; ultrasound physicians in Sichuan Mianyang 404 Hospital were charged in external verification based on this Nomogram model. Receiver operating characteristic (ROC) curve and calibration curve were drawn to evaluate the efficacy of the model and its clinical value in modifying the classification results by C-TI-RADS. Results Univariate and Multivariate Logistic regression analyses showed that gender, age, maximum diameter of nodules, the number of nodules, ultrasound abnormalities of cervical lymph nodes and C-TI-RADS classification were the independent factors for predicting the modified classification results of C-TI-RADS by ultrasound physicians (P < 0.05). Consistency index of the Nomogram model constructed based on these factors was 0.842 (95%CI, 0.816 to 0.867), the area under the curve (AUC) was 0.842, sensitivity was 92.9%, specificity was 63.7%, and accuracy was 75.9%. The prediction results of the Nomogram model were in good agreement with the actual situation in both the training set and the external validation set. Conclusion Nomogram model based on clinical and ultrasound features of thyroid shows good predictive accuracy in modifying classification results of C-TI-RADS by ultrasound physicians, which has potential clinical application value.

Objective:To explore the effect of visual mind mapping based on Mini-CEX evaluation combined with case-based learning (CBL) on improving the learning ability and teaching satisfaction of nursing students in department of general surgery.Methods:A total of 120 nurses rotating in the Department of General Surgery, Panzhihua Central Hospital (Clinical Medical College of Panzhihua University) from September 2019 to July 2020 were selected as research objects, and randomly divided into a control group and a study group, with 60 nurses in each group. The control group used traditional teaching, and the study group used visual mind mapping based on Mini-CEX evaluation combined with CBL. After the training, the clinical comprehensive ability of the nurses was evaluated by theoretical and practical assessment, and the self-learning ability and teaching satisfaction of the nurses were analyzed through self-made questionnaire survey. SPSS 22.0 was used for t test and chi-square test. Results:The theoretical and practical assessment scores of nursing students in the study group were significantly higher than those in the control group[(95.01±3.52) vs. (83.26±4.05); (96.14±3.22) vs. (81.17±4.30)] ( P=0.001). Before the rotation training, there was no statistical difference between the study group and the control group in the scores of self-motivation beliefs, task analysis, self-monitoring and adjustment, and self-evaluation ( P>0.05). After the rotation training, the scores of above 4 aspects were significantly higher in study group than the control group ( P<0.05). The nurse trainees in the study group were significantly superior to those in control group in the following 7 aspects: reasonable arrangement of the teaching plan, novelty of the teaching mode, improvement of clinical nursing skills, improvement of the nurse-patient communication ability, improvement of the emergency response ability, and overall teaching satisfaction ( P=0.001). Conclusion:Visual mind mapping based on Mini-CEX evaluation combined with CBL applied to clinical teaching training of nursing students in the department of general surgery can effectively improve the effectiveness of nursing teaching and teaching satisfaction, improve the learning ability of nurses, and improve the nursing level of nursing students in the department of general surgery.

Objective: Retro-laparoscopic partial nephrectomy is a challenge for ventro-renal tumors, especially hilar tumors.The tumors are partial or entirely out of operative field and there is blind space for operation.To solve this problem, a set of techniques including renal pedicle rotation is developed.Methods: A set of techniques including renal pedicle rotation, double-layer suture, early artery unclamping for retro-laparoscopic nephrectomy for ventro-renal tumors, especially hilar tumors were developed.Hilar tumors were located anteriorly to the angle of the renal and renal arteries and in contact with the anterior surface of the renal artery.The evaluation of the outcomes included the operation time, warm ischemia time, estimated haemorrhage, surgical margin, renal function after operation, and complications.This study reviewed the data of 28 patients with ventro-renal tumor, including 15 patients with complex hilar tumors.Results: The average tumor size was (3.8±0.5) cm.The average R.E.N.A.L score was 8 (ranging from 7 to 9).The average warm ischemia time was (23.8±4.7) min, and suture time was (26.2±6.5) min, and operation time was (124.1±12.1) min.The median hospital stay was 4 days and the average estimated haemorrhage was (139.1±54.0) mL.All the surgeries were operated under laparoscope and no surgery switched to open surgery.Seven patients developed Clavien Dindo Ⅰ-Ⅱ complications after operation.Three patients (10.7%) developed collective system damage and received repair of collective system in time and three patients (10.7%) developed slightly gross hematuria (Clavien-DindoⅠ).Two patients developed wound infection (Clavien-DindⅡ).Three patients (10.7%) got renal vein clamped because of capillary hemorrhage from basilar part of tumors.There were 14 patients received early unclamping of renal artery, and no obvious renal vessel damage was found.There were statistically significant differences between the serum creatinine levels (P<0.05) and the estimated glomerular filtration rates (P=0.02) before and after surgery.All the patients'' serum creatinine levels were in normal range and no patient needed regular dialysis.There was no positive surgical margin and the median follow-up was 7 months without local recurrence or distant metastasis.Conclusion: It is safe and effective to apply renal pedicle rotation technique in retro-laparoscopic partial nephrectomy for ventro-renal tumors.The short-term follow-up results are optimistic, but long follow-up is required.

Objective: To explore the utility of circulating tumor DNA detection in early breast cancer by using next-generation sequencing. Methods: This exploratory study of circulating tumor DNA detection is for early invasive breast cancer patients treated in Breast Disease Center, Peking University First Hospital from December 2015 to July 2016. Plasma samples were collected and were used to isolate plasma cell-free DNA.Exons or hotspots of 247 cancer related genes were sequenced by next-generation sequencing. Mutations and their correlation with clinic-pathological factors were analyzed. The correlation between mutations and clinic-pathological factors was evaluated by χ² test or Fisher′s exact test. Results: Seventy-five patients were enrolled in this study. All patients were female and aged from 31 to 88 years with median age of 58 years. All patients′ clinic-pathological records were complete. Sixty-four mutations in 18 genes (ALK, BCR, ERBB2, ROS1, PDGFRA, EGFR, FGFR2, CYP1B1, CALR, CASP7, BRAF, FGFR1, FGFR3, MET, NRAS, PTEN, KIT, SOD2) were detected in 47 (62.7%) among all 75 patients.Exons were captured in 10 genes, and mutations in 2 of 3 genes analyzed were clustered. Gene mutations were not correlated with menopausal status, histological type, primary tumor (T), regional lymph nodes (N), TNM stage, histological grade, estrogen receptor status, progesterone receptor status, human epidermal growth factor receptor 2 status, Ki-67 and molecular subtype (all P>0.05). Conclusion Circulating tumor DNA sequencing by next-generation sequencing was useful for detecting breast cancer-related mutations.

Objective:To evaluate the effect of surgery on 47 patients with moyamoya disease by retrospective analysis.Methods:A total of 47 patients with moyamoya disease were enrolled from August,2010 to According to the improved treatment in August,2013,all cases were divided into two groups:a pre-improved group and a post-improved group.According to different surgical methods,they were divided into two subgroups:an indirect revascularization subgroup and a combined revascularization subgroup.Results:The cerebral ischemia in 77.4％ of patients was relieved after the surgery.There was significant difference in outcomes of patients between the pre-improved group and the post-improved group (P＜0.05),while there was no significant difference between the pre-improved indirect revascularization subgroup and the pre-improved combined revascularization subgroup.There was also no significant difference between the post-improved indirect revascularization subgroup and the post-improved combined revascularization subgroups (P＞0.05).Conclusion:Surgical treatment can improve the outcomes of patients with moyamoya disease,but there is no significant difference in surgical effects between indirect and combined revascularization.

Objective To identify the relationship between impaired glucose regulation of neuronal apoptosis in hip-pocampus and the ability of learning/memory in rats.Methods The model rats were made by high fat and sugar diet;The morris water maze was used to detect the learning and memory function;The TUNEL method was used to detect neuronal apoptosis in hippocampus .Expression of Bcl-2/Bax and Bcl-2 mRNA/Bax mRNA factor in hippo-campus neurons was detected with immunohistochemistry and in situ hybridization .Results Compared with NGT group, in IGR group the learning and memory ability were meaningfully decreased (P<0.05);the number of neuro-nal apoptosis in hippocampus was increased significantly ( P<0.05 ); the expression of Bcl-2 and Bcl-2 mRNA in hippocampus decreased significantly ( P<0.05);the expression of Bax and Bax mRNA in hippocampus increased sig-nificantly ( P<0.05 );The ability of learning and memory was positively correlated with expression of Bcl -2 ( P<0.05) and negatively correlated to the expression of Bax (P<0.05).Conclusions There is a relationship between impaired glucose regulation and the ability of learning and memory in rats , its mechanism may be potentially related to hippocampal neuronal apoptosis .

Objective To investigate the effect of CT perfusion (CTP) imaging guidance in the treatment of acute cere?bral infarction. Methods Patients (n=200) with acute cerebral infarction who visited our clinic within 6 hours underwent CTP examination and were divided into two groups:penumbra group and non-penumbra group according to their CTP imag?ing (presence of penumbra or not). Recombinant tissue plasminogen activator (rt- PA) was administrated for intravenous thrombolysis in both groups. NIHSS (The NIH Stroke Scale), BI (Barthel Index), mRS (modified Rankin Scores) and hemor?rhagic transformation events of two groups were determined before and after thrombolysis to evaluate its effect and prognosis in these two group. Results Compared with non penumbra group, NIHSS was reduced in penumbra group from 7 days after rt-PA (6.67±3.46 vs 4.76±2.04), and this decrease became obvious at 4 weeks after rt-PA (6.67±3.46 vs 3.68±1.93). Effi?ciency rate at 4 week (60.3%) and good prognosis rate at 3 months(71.7%)were both significantly improved in penumbra group than those in non penumbra group(34.7%,56.8%). Conclusion rt-PA under CTP guidance is effective and safe in the treatment of acute cerebral infarction. The thrombolytic therapy window can be enlarged according to the presence of pen?umbra or not and the bleeding conversion rate remains at low level.

Objective To verify the reliability of our previously established reverse-transcription loop-mediated isother-mal amplification ( RT-LAMP) method for the detection of sentinel lymph nodes metastasis in breast cancer patients .Meth-ods Sentinel lymph nodes of breast cancer patients were analyzed by RT-LAMP and FDA-approved GeneSearch methods respectively, and the consistency of the two methods was assessed with a kappa concordance test.Results One hundred and thirty-four cases of sentinel lymph node samples were collected from seven hospitals in Beijing .Using the GeneSearch assay as the gold standard, the sensitivity, specificity and consistentcy of RT-LAMP were 96.2%(25/26),96.3%(104/108) and 96.3%(129/134), respectively.Statistical analysis showed that the two methods were consistent (Kappa=0.8857, P<0.001).Conclusion RT-LAMP is highly consistent with GeneSearch ,efficient,simple and inexpensive, promising a good prospect of application to intra-operative detection of sentinel lymph nodes metastasis for breast cancer patients.

Breast ; Breast Neoplasms ; pathology ; Carcinoma, Papillary ; pathology ; Female ; Humans