ObjectiveTo summarize the research status of risk factors of chronic postoperative inguinal pain (CPIP).MethodWe searched and summarized the domestic and foreign literatures about the risk factors of CPIP in recent years.ResultsThere was no doubt that the risk factors of CPIP included preoperative pain, acute pain at postoperative, recurrent inguinal hernia, smaller hernia sac, higher body mass index (BMI), and surgical methods. These effects were controversial such as age, gender, and the mesh. In recent years, hypertension and a past history of chronic pain may also be risk factors for the development of CPIP.ConclusionsThe risk factors of CPIP still need the further study.
ObjectiveTo compare the properties of hernia repair mesh of different materials used in clinical practice, so as to provide reference for clinical selection of numerous meshes at present. MethodThe literatures of different materials of hernia mesh in the treatment of abdominal hernia and inguinal hernia at home and abroad were reviewed.ResultsThe synthetic mesh, especially the polypropylene mesh with wide-pore mesh in the midweight mesh, might be the most ideal synthetic mesh. The new coating material improved the defect of polypropylene material to a great extent. The status of biological mesh in complex hernia repair had been waxed, and it had a tendency to be replaced by absorbable synthetic mesh.ConclusionsCurrently, there is no single mesh suitable for all types of hernia repair. Polypropylene mesh is still an effective and low cost mesh material, and there may be more room for the development of absorbable synthetic materials and antimicrobial coatings.
目的 探討胃大部切除術后吻合口潰瘍的診治方法。方法 1985年3月至2008年6月期間蘭州大學第一醫院收治的胃大部切除術后吻合口潰瘍患者29例，均經胃鏡證實，其中男16例，女13例； 年齡30～51（40±3.0）歲； 19例為十二指腸球部潰瘍術后，10例為胃潰瘍術后。初次手術到潰瘍再發癥狀的時間，最短1例為1個月，其余28例為3～4年。2例吻合口潰瘍穿孔及4例吻合口潰瘍出血者行包括吻合口在內的殘胃部分切除、胃空腸Roux-Y吻合術； 其余均給予非手術治療。結果 行再手術治療者術后發生切口感染1例，行保守治療； 所有患者均治愈，隨訪1～5年，未出現潰瘍復發。結論 吻合口潰瘍首選保守治療，多數可治愈。再次手術方式可采用殘胃部分切除加胃空腸Roux-Y吻合術。
ObjectiveTo summarise the influencing factors of gut microbiota in the perioperative period and its regulatory mechanism in postoperative pain, with the aim of providing clinical reference for postoperative pain management. MethodRelevant literatures on gut microbiota and postoperative pain in recent years were systematically reviewed and synthesised. ResultsAnaesthesia, preoperative mechanical bowel preparation, surgical stress, etc. could cause gut microbiota dysbiosis. Gut microbiota directly or indirectly modulated the excitability of primary sensory neurons through their derived metabolites and pathogen-associated molecular patterns and influenced the pain signalling process by activating immune cells to release cytokines. ConclusionsGut microbiota play an important role in the development and progression of postoperative pain. Future studies should further clarify its role in different types of postoperative pain and develop innovative therapeutic strategies based on the regulation of gut microbiota to improve the management of postoperative pain.
ObjectiveTo systematically evaluate the effects of biological mesh (BM) and non-absorbable synthetic mesh (SM) on the risks of recurrence, complications, and cost-effectiveness after ventral hernia repair. MethodsThe publicly published related researches of BM versus SM for ventral hernia repair were searched in the PubMed, Cochrane Library, Embase, Web of Science, CNKI, Wanfang, VIP, CBM databases from the establishment of the databases to August 1, 2021. According to the inclusion and exclusion criteria, the literatures were screened and the data were extracted, and the data that met the conditions were merged and analyzed. The meta-analysis was performed by RevMan5.4.1 software. ResultsA total of 26 studies with 3 259 patients were included, including 1 388 patients in the BM group and 1 871 in the SM group. The results of meta-analysis showed that the recurrence, surgical site infection, surgical site occurrence, reoperation rates, and medical costs in the BM group were higher than those in the SM group (P<0.05). There were no significant differences in the patch infection, seroma, hematoma, wound dehiscence, and readmission rates between the two groups (P>0.05). ConclusionsSM during ventral hernia repair is better than BM on postoperative recurrence, surgical site infection, surgical site occurrence, reoperation, etc., and could reduce medical costs. In the future, it is tried to use more SM in patients with complicated ventral hernia such as cleaning pollution and contaminated environment.
ObjectiveTo systematically review the research progress on risk factors and predictive models for postoperative pulmonary infection (POPI) in gastric cancer patients, aiming to provide a reference for the early identification of high-risk patients and the optimization of clinical interventions. MethodsBy reviewing relevant domestic and international studies in recent years, the key risk factors for POPI in gastric cancer were summarized. And the construction methodologies, efficacy, and clinical application value of the latest predictive models developed in the last three years were evaluated. ResultsIn addition to traditional risk factors, recent studies had further confirmed the significant predictive value of novel factors for POPI following gastric cancer surgery, including nutritional-immune-inflammatory markers (such as prognostic nutritional index, C-reactive protein to albumin ratio, C-reactive protein-albumin-lymphocyte index), preoperative frailty, sarcopenia, and specific surgical approaches (e.g., differences between totally laparoscopic and laparoscopically assisted gastrectomy). Regarding predictive models, nomogram models developed based on multivariate logistic regression analysis and risk scoring systems had demonstrated favorable performance in both internal and partial external validations, with the area under the receiver operating characteristic curve mostly ranging from 0.74 to 0.97. Notably, composite models that integrate nutritional and immune-inflammatory markers with frailty assessments had shown superior predictive accuracy and clinical applicability. ConclusionsThis review provides a novel predictive perspective based on emerging biomarkers and functional assessments for the early identification of high-risk populations of POPI following gastric cancer surgery. Future research should prioritize the validation and refinement of existing models through multicenter collaboration, ultimately transforming them into more effective clinical risk assessment tools to guide precision prevention.
ObjectiveTo evaluate existing predictive models for surgical site infection (SSI) following colorectal cancer (CRC) surgery, aiming to provide a scientific basis for refining risk prediction models and developing clinically practical and widely applicable screening tools. MethodA comprehensive review of existing literature on predictive models for SSI following CRC surgery, both domestically and internationally, were conducted. ResultsThe determination of SSI following CRC surgery primarily relied on the Centers for Disease Control and Prevention standard of USA, which presented issues of consistency and accuracy. Various predictive models had been developed, including traditional statistical models and machine learning models, with 0.991 of an area under the operating characteristic curve of predictive model. However, most studies were based on retrospective and single-center data, which limited their applicability and accuracy. ConclusionsAlthough existing models provide strong support for predicting SSI following CRC surgery, there is a need for multi-center, prospective studies to enhance the generalizability and accuracy of these models. Additionally, future research should focus on improving model interpretability to better apply them in clinical practice, providing personalized risk assessments and intervention strategies for patients.
Objective To summarize the stemness regulation mechanism of microRNA on invasion, metastasis and chemoresistance of gastric cancer stem cells (GCSCs), and to explore the anti-tumor therapy based on miRNA targeting GCSCs. Method The literatures about the research progress of miRNA and GCSCs at home and abroad in recent years were collected and reviewed. Results MiRNA could regulate a series of important cellular processes such as proliferation, apoptosis, differentiation and epithelial-mesenchymal transition of GCSCs by participating in the expression of related target genes, which was associated with poor prognosis and high mortality of gastric cancer patients. Silencing or restoring the expression of candidate miRNA of GCSCs could provide a novel and promising approach for the treatment of gastric cancer. Conclusions GCSCs have an important relationship with the malignant biological behavior of gastric cancer, and studies have confirmed that miRNA play an important regulatory role in GCSCs. Therefore, miRNA can be used as a potential target for the treatment of gastric cancer. By regulating the expression of specific miRNA, it can inhibit tumor invasion and metastasis, and improve the sensitivity of chemotherapy drugs.
ObjectiveTo investigate the risk factors and establish the predictive pattern of the metachronous liver metastasis after curative surgery for patientswith gastric cancer. MethodsThe clinicopathologic data of patients who underwent radical gastric cancer surgery and met the inclusion and exclusion criteria from January 1, 2015 and January 1, 2018 in the First Hospital of Lanzhou University were retrospectively analyzed. The risk factors affecting metachronous liver metastasis of gastric cancer were screened out by univariate and multivariate logistic regression analysis. And a nomogram prediction model based on the risk factors screened out was established and its predictive efficiency was evaluated. ResultsA total of 203 patients were collected in this study, of whom 41 (20.4%) developed metachronous liver metastasis of gastric cancer. The results of multivariate logistic regression analysis showed that the tumor diameter ≥5 cm, increasing intraoperative bleeding, carcinoembryonic antigen (CEA) ≥5 μg/L, and lymphovascular invasion increased the risks of metachronous liver metastasis of gastric cancer (all P<0.05). The area under the receiver operating characteristic curve and its 95% confidence interval (95%CI) of the nomogram based on these risk factors in predicting metachronous liver metastasis of gastric cancer was 0.850 (0.793, 0.908), and the consistency index (95%CI) was 0.812 (0.763, 0.859). The calibration curve for predicting the risk of metachronous liver metastasis in gastric cancer by the nomogram was close to the 45° ideal curve and had a stronger calibration (Hosmer Limeshow goodness-of-fit test, χ2=2.116, P=0.347). ConclusionsThe results of this study conclude metachronous liver metastasis of gastric cancer is not low, and the patient with lymphovascular invasion, higher level of CEA (≥5 μg/L), more intraoperative bleeding, and larger tumor diameter (≥5 cm) has a higher risk of metachronous liver metastasis of gastric cancer. The nomogram prediction model established based on these risk factors has a good predictive efficiency and can provide reference for clinicians to identify high-risk patient and take early interventions.