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find Author "CHEN Wei" 60 results
  • Management throughout the whole course of acute kidney injury

    The high incidence and mortality of acute kidney injury (AKI) have brought great challenges to global health. In recent years, China has made some achievements in the epidemiology, risk factors and treatment of AKI. However, further prevention and treatment are still facing difficulties. Based on current new ideas and research progress, this paper summarized and analyzed the management throughout the whole course of AKI, including AKI risk assessment, early prevention, early identification, treatment and follow-up. The aim is to make Chinese nephrologists realize the focus of AKI prevention and treatment, standardize the management of AKI, and explore the prevention and treatment strategy suitable for AKI in China.

    Release date:2022-08-24 01:25 Export PDF Favorites Scan
  • INFLUENCE OF REPEATEDLY INJECTING PLATELET-RICH PLASMA ON SURVIVAL AND QUALITY OF FAT GRAFTS IN NUDE MICE

    Objective To study the effect of platelet-rich plasma (PRP) on the survival and quality of fat grafts in the nude mice so as to provide a method and the experimental basis for clinical practice. Methods Fat tissue was harvested from the lateral thigh of a 25-year-old healthy woman and the fat was purified by using saline. The venous blood was taken from the same donor. PRP was prepared by centrifugation (200 × g for 10 minutes twice) and activated by 10% calcium chloride (10 : 1). Then 24 female nude mice [weighing (20 ± 3) g, 5-week-old] were allocated randomly to the experimental group and the control group (12 mice per group). Each subcutaneous layer of two sides of the back (experimental group) was infiltrated with 0.8 mL fat tissue-activated PRP mixtures (10 : 2); the control group was infiltrated with 0.8 mL fat tissue-saline mixtures (10 : 2); 0.14 mL activated PRP and 0.14 mL saline were injected into the experimental group and the control group respectively at 5 and 10 days after the first operation. At 15, 30, 90, and 180 days after the first operation, the samples were harvested for gross and histological observations. Results All nude mice survived to the end of the experiment. No inflammation and abscess formation of the graft were observed. Experimental group was better than control group in angiogenesis, liquefaction, and necrosis. The grafted fat weight and volume in the experimental group were significantly larger than those in the control group at 15, 30, and 90 days (P lt; 0.05); but there was no significant difference between the 2 groups at 180 days (P gt; 0.05). Histological observation showed good morphological and well-distributed adipocytes, increasing vacuoles, few necrosis and calcification in the experimental group; but disordered distribution, obvious necrosis, and calcification in the control group. The necrosis area ratio of the experimental group was significantly lower than that of the control group (P lt; 0.05), and the number of micro-vessels was significantly higher in the experimental group than in the control group at 15 and 180 days (P lt; 0.05). Conclusion The method of repeatedly using the PRP within 180 days in assisting fat grafts can obviously improve the survival and quality.

    Release date:2016-08-31 04:07 Export PDF Favorites Scan
  • Analysis of the influencing factors of postoperative pain in day surgery patients under multimodal pain management

    Objective To understand the incidence and severity of postoperative acute pain in patients undergoing day surgery, and to explore the influencing factors of moderate to severe pain after surgery, so as to provide a reference for pain management in day surgery. Methods Convenience sampling method was used to select patients undergoing day surgery under multi-modal pain management in West China Hospital of Sichuan University between April and August 2020, and the general conditions, surgical conditions, and postoperative pain of the patients were investigated. According to the degree of postoperative pain, patients were divided into mild pain group and moderate to severe pain group. Logistic regression analysis was used to explore the influencing factors of postoperative pain in the two groups. Results A total of 509 patients were finally included, of which 69 patients presented with moderate to severe pain. Logistic regression analysis showed that patient age [odds ratio (OR)=0.970, 95% confidence interval (CI) (0.946, 0.993), P=0.012], pain threshold [OR=1.348, 95%CI (1.048, 1.734), P=0.020] and postoperative drainage tube [OR=2.752, 95%CI (1.090, 6.938), P=0.017] were the influencing factors of moderate to severe pain after surgery. Conclusion Under multimodal pain management, the incidence of moderate to severe pain in day surgery patients is low, and medical staff should further strengthen pain management from the factors affecting pain to reduce the incidence of moderate to severe pain after surgery.

    Release date:2022-03-25 02:32 Export PDF Favorites Scan
  • Analysis of Clinicopathologic Characteristics in 958 Cases of Gastric Cancer

    ObjectiveTo investigate the clinicopathologic and epidemiological characteristics of patients with gastric cancer at our hospital in the past six years. Methods A total of 958 patients with gastric cancer were selected from January 2004 to December 2009 and clinicopathologic characteristics such as basic data, pathological type, tumor location, and TNM stage were retrospectively analyzed. ResultsOf the 958 patients,697 cases (72.8%) were male and 261 cases (27.2%) were female, and the age ranged from 26 to 91 years old (mean 62.6 years old). The occurrence rate of gastric cancer was higher in the patients of 46-65 years old (49.4%, 473/958) than that in the patients of ≥66 years old (42.3%, 405/958) and ≤45 years old (8.3%, 80/958). Regarding pathologic type, the majority of advanced gastric cancers (70.1%) were Borrmann Ⅱ, the adenocarcinoma and signetring cell carcinoma accounted for 82.3% and 7.8%, respectively. The cancer of gastric cardia accounted for 53.0%. Stagestratified analysis revealed that the majority of gastric cancers (47.4%) were stage Ⅲ. Conclusion①A prevalence of gastric cancer is found in middle, elderly male patients. Poorly differentiated adenocarcinoma in cardia is prominent. ②Patients with high malignant ganstrie cancer are younger. ③The majority of patients who underwent the surgical treatments have advanced or metastatic tumor, therefore it is necessary to improve the early diagnosis of gastric cancer.

    Release date:2016-09-08 10:45 Export PDF Favorites Scan
  • Effect of multimodal pain management in ambulatory laparoscopic cholecystectomy

    Objective To explore the effect of multimodal pain management in the perioperative period of ambulatory laparoscopic cholecystectomy. Methods Non-randomized historical control method was adopted. Patients who underwent laparoscopic cholecystectomy in the Day Surgery Center of West China Hospital, Sichuan University were included. The patients who received single modal pain management between January and May 2020 were taken as the control group, and the patients who received multimodal pain management between January and May 2021 were taken as the trial group. The postoperative pain and pain-related indicators of the two groups were compared. Results A total of 731 patients were included, including 496 in the trial group and 235 in the control group. There was no significant difference in gender, age, body mass index, nationality, education level, diagnosis, marriage and occupation between the two groups (P>0.05). There were 41 patients with moderate or above pain after surgery in the trial group, of which 3 patients were accompanied by severe nausea and vomiting. There were 41 patients with moderate or above pain after surgery in the control group, of which 4 patients were accompanied by severe nausea and vomiting. The incidence of moderate or above postoperative pain (8.3% vs. 17.4%) and post-discharge pain (0.0% vs. 1.3%) in the trial group were lower than those in the control group (P<0.05). There was no significant difference in the incidence of postoperative severe nausea and vomiting and delayed discharge due to postoperative pain between the two groups (P>0.05). There was no statistically significant difference between the two groups patients with moderate or above pain in gender, age, body mass index, education level, diagnosis, time from the onset of pain to the end of surgery, pain location, pain nature, use rate of antiemetic drugs, and score after treatment (P>0.05). The majority of pain sites were surgical incision pain, and the nature of pain was mostly swelling pain. The pain score of patients with moderate or above pain in the trial group was lower than that of the control group (4.4±0.6 vs. 4.9±1.1, P<0.05). Conclusion Multimodal pain management reduces postoperative pain of patients undergoing ambulatory laparoscopic cholecystectomy by means of assessment, medication, procedure improvement, health education, which can provide guarantee for perioperative quality management of ambulatory laparoscopic cholecystectomy.

    Release date:2023-02-14 05:33 Export PDF Favorites Scan
  • Comparative efficacy and safety of PD-1/PD-L1 inhibitors in first-line treatment of patients with advanced Nonsquamous non-small cellcancer: A network meta-analysis

    Objective To systematically evaluate the efficacy and safety of a combination regimen of PD-1/PD-L1 immune checkpoint inhibitors in the first-line treatment of advanced non-small cell lung cancer. Methods Randomized controlled trials (RCTs) of PD-1/PD-L1 inhibitor combination regimen in the first-line treatment of advanced non-squamous NSCLC were systematically retrieved from the Chinese and English electronic databases from inception to September 2023. The combination regimen includes PD-1/PD-L1 inhibitor+chemotherapy, PD-1/PD-L1 inhibitor+chemotherapy+anti-angiogenic agents (bevacizumab), and PD-1/PD-L1 inhibitor+CTLA4 inhibitor (ipilimumab). The network meta-analysis was performed using StataMP16.0 and R4.2.0 software. ResultsA total of 13 RCTs were collected, including 7 764 patients. In terms of effectiveness, compared with chemotherapy, several regimens improved overall survival (OS), progression-free survival (PFS), and objective response rate (ORR). Among them, toripalimab (Tor) plus chemotherapy (CT) may be associated with the best OS, and nivolumab plus bevacizumab and chemotherapy (Niv+Bev+CT) may provide the best PFS. Pembrolizumab (Pem) combined with CT was associated with the best treatment regimen for improving ORR. In terms of safety, except sintilimab (Sin) and Pem, the incidence of grade≥3 adverse events of all treatment regimens was significantly higher than that of chemotherapy (P<0.05). The incidence of AEs≥3 grade in Cam+CT was higher than that in Sin+CT (OR=0.44, 95%CI 0.25-0.80) and Pem+CT (OR=0.52, 95%CI 0.31-0.88). And the incidence of ≥3grade AEs in Atezolizumab (Ate) +Bev+CT (OR=2.32, 95%CI 1.14-4.71; OR=1.97, 95%CI 1.02-3.79) was also higher than that in Sin+CT and Pem+CT (P<0.05). Conclusion In non-squamous NSCLC patients, PD-1 inhibitor combined with chemotherapy can bring more benefits to advanced NSCLC patients than chemotherapy alone.

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  • Effects of different doses of low molecular weight heparin on the patency rate of cuffed central venous catheter of hemodialysis

    ObjectiveTo explore the effect of different doses of low molecular weight heparin (LMWH) on the patency rate of cuffed central venous catheter used by patients for hemodialysis therapy.MethodsFrom June 2012 to January 2018, patients who received long-term hemodialysis in 363 Hospital with cuffed central venous catheter were enrolled in this retrospective study. According to the dose of LMWH used in hemodialysis, they were divided into below 60 U/kg group and greater than or equal to 60 U/kg group. The general parameters, frequency of urokinase use, bleeding events, severe coagulation in dialysis line and occurrence of catheter dysfunction were collected and compared between two groups.ResultsA total of 48 cases were enrolled. Of these, the doses of LMWH of 31 cases were below 60 U/kg and 17 cases were greater than or equal to 60 U/kg. There was no significant difference between the two groups in terms of age, sex, diabetes, hemoglobin, platelets, albumin, low-density lipoprotein cholesterol, or hypersensitive C-reactive protein parameters (P>0.05). Between the below 60 U/kg group and the greater than or equal to 60 U/kg group, there was no statistically significant difference in the incidence of catheter dysfunction (16.1% vs. 29.4%; χ2=0.507, P=0.476) or the incidence of bleeding events (1.77 vs. 2.81 times per 1 000 catheter-days; χ2=1.500, P=0.221). The frequency of urokinase used in the two group were 27.89 and 36.18 times per 1 000 catheter-days, respectively (χ2=5.927, P=0.015) and the frequency of severe coagulation were 6.88 and 2.30 times per 1 000 catheter-days, respectively (χ2=5.140, P=0.023). The differences were statistically significant.ConclusionThe lower dose of LMWH used in hemodialysis for preventing extra-corporeal circuit thrombosis does not result in the decrease of the patency rate of cuffed central venous catheter.

    Release date:2020-08-25 09:57 Export PDF Favorites Scan
  • Current situation and trend of rehabilitation for cognitive impairment

    This paper, focusing on vascular cognitive impairment, summarizes the current situation of cognitive impairment rehabilitation at home and abroad, and makes a comprehensive and systematic introduction and review on the concept, assessment, and treatment of cognitive impairment, and so on. This paper raises people’s awareness of cognitive impairment and guides people to make appropriate choices about assessment and treatment methods according to different conditions, in order to improve the diagnosis rate of cognitive impairment, and to comprehensively adopt various rehabilitation treatment methods to improve cognitive rehabilitation efficacy. At the same time, it points out the weak points and future development trend of cognitive impairment rehabilitation in order to help the future work.

    Release date:2019-05-23 04:49 Export PDF Favorites Scan
  • Research progress of effect of gut microbiota and its metabolites on coronary artery diseases

    Gut microbiota and its metabolites in various human diseases have gradually become a research hotspot in the current medical community. And coronary artery disease is currently one of the most threatening clinical cardiovascular diseases in the world, so the use of gut microbiota and its metabolites in the development of its pathophysiology has also received more and more attention. Therefore, this paper reviews the effects of gut microbiota and its metabolites on coronary artery disease, as well as the research progress of intervening gut microbiota and its metabolites as therapeutic targets, hoping to expand the future research direction in this field and provide new ideas with treating coronary artery disease.

    Release date:2023-05-09 03:11 Export PDF Favorites Scan
  • Progress of pathogenesis and genetics of alcohol-induced osteonecrosis of femoral head

    ObjectiveTo review the research progress of pathogenesis and genetics of alcohol-induced osteonecrosis of the femoral head (AIONFH). MethodsThe relevant domestic and foreign literature in recent years was extensively reviewed. The pathogenesis, the relationship between gene polymorphism and susceptibility, the related factors of disease progression, and the potential therapeutic targets of AIONFH were summarized. ResultsAIONFH is a refractory orthopedic disease caused by excessive drinking, seriously affecting the daily life of patients due to its high disability rate. The pathogenesis of AIONFH includes lipid metabolism disorder, endothelial dysfunction, bone homeostasis imbalance, and et al. Gene polymorphism and non-coding RNA are also involved. The hematological and molecular changes involved in AIONFH may be used as early diagnostic markers and potential therapeutic targets of the disease. ConclusionThe pathogenesis of AIONFH has not been fully elucidated. Research based on genetics, including gene polymorphism and non-coding RNA, combined with next-generation sequencing technology, may provide directions for future research on the mechanism and discovery of potential therapeutic targets.

    Release date:2022-12-19 09:37 Export PDF Favorites Scan
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