Objective To study the catheter-related infection (CRI) in cancer patients treated with central venous catheterization. Methods A prospective study with 196 cancer patients was conducted to analyze the types of catheter-related infection and pathogen, as well as the relationship between CRI and the following factors: insert location, gender, age, remained time, or bone marrow suppression. Results Of the total 196 cases, 16 cases were diagnosed as CRI and the CRI rate was 8.2%. The types of CRI were five cases of pathogen colonization, four cases of insert location infection and seven cases of catheter-related bloodstream infection. Of the total 244 specimens, 20 were positive including 7 pathogenic bacteria in either Gram positive or Gram negative types, the dominating pathogens were staphylococcus aureus, staphylococcus epidermidis, acinetobacter baumannii and klebsiella pneumoniae. CRI was related to both insert location and age which were both the independent risk factors. Conclusion The concept of prevention should be set up, and the comprehensive measures should be taken to reduce CRI, such as choosing an appropriate insert location and complying with a strict catheter insert standard.
Objective To investigate the risk factors of central line-associated bloodstream infection (CLABSI) and provide clinical guidance for reducing the incidence of CLABSI. Methods The clinical data of patients with central venous catheter catheterization in Sichuan Provincial People’s Hospital between January 2018 and December 2021 were retrospectively collected. According to whether CLABSI occurred, the patients were divided into CLABSI group and non-CLABSI group. The data of patients were analyzed and the risk factors of CLABIS were discussed. Results A total of 43 987 patients were included. Among them, there were 63 cases in the CLABSI group and 43924 cases in the non-CLABSI group. The incidence of CLABSI was 0.18/1 000 catheter days. Multivariate logistic regression analysis showed that admission to intensive care unit (ICU) [odds ratio (OR)=74.054, 95% confidence interval (CI) (22.661, 242.005), P<0.001], hemodialysis [OR=4.531, 95%CI (1.899, 10.809), P=0.001] and indwelling catheter days [OR=1.017, 95%CI (1.005, 1.029), P=0.005] were independent risk factors for CLABSI. A total of 63 strains of pathogenic bacteria were isolated from the 63 patients with CLABSI. Among them, 28 strains of Gram-positive bacteria, 25 strains of Gram-negative bacteria and 10 strains of Candida. Conclusions Admission to ICU, hemodialysis and long-term indwelling catheter are independent risk factors for CLABSI. The prevention and control measures of CLABSI should be strictly implemented for such patients to reduce the risk of infection.
Objective To evaluate the flushing effects of normal saline (NS) and heparin saline (HPS) after central venous catheterization. Methods We searched PubMed, EMbase, The Cochrane Library (Issue 12, 2015), CBM, CNKI, VIP and WanFang Data to collect randomized controlled trials (RCTs) on the flushing effects of NS versus HPS after central venous catheterization from inception to December 2015. Two reviewers independently screened literature, extracted data and assessed the risk of bias of included studies. Then RevMan 5.3 software was used for meta-analysis. Results A total of 12 RCTs involving 2 092 patients were included. The results of meta-analysis showed that no significant differences were found between the two groups in occlusion rate (OR=1.58, 95%CI 0.79 to 3.14,P=0.19) and the catheter days (OR=–7.24, 95%CI –22.90 to 8.41,P=0.36), while the HPS group had more advantage than the NS group in decreasing the incidence of phlebitis (OR=2.57, 95%CI 1.52 to 4.34,P=0.000 4). Subgroup analysis revealed that HPS provided more superiority over NS in lessening the occlusion rate (OR=1.85, 95%CI 1.22 to 2.80,P=0.004), no significant difference was found when comparing NS to 10 units, and 100 units HPS (10 units: OR=1.51, 95%CI 0.94 to 2.43,P=0.09; 100 units: OR=1.51, 95%CI 0.63 to 3.60,P=0.09). Conclusion HPS appears to be more beneficial than NS, larger rigorously studies are needed for better understanding on the effects of NS and HPS.
Objective To evaluate the methodological quality and reporting quality of clinical guidelines and consensus on central venous catheters. Methods The PubMed, EMbase, Web of Science, CBM, WanFang Data, CNKI databases and Guidelines International Network, National Institute for Health and Clinical Excellence, National Guideline Clearinghouse, Medive.cn websites were searched to collect clinical guidelines and consensus related to central venous catheters. The retrieval time was from the establishment of the database to October 2022. Two researchers independently screened the literature, extracted data and used evaluation tools AGREE Ⅱ and RIGHT to evaluate the quality of the included studies. Results A total of 34 central venous catheter guidelines and consensus were included. The average score for each field of AGREE II was 53.73% for scope and purpose, 39.26% for participants, 39.57% for rigor, 46.76% for clarity, 30.23% for application and 49.18% for editorial independence. Items 1a, 1b, 3, and 4 (100.00%) had the highest reporting rate in the RIGHT evaluation items, followed by items 19a (97.05%), 2/19b (94.11%), 20 (91.17%), 7b/11a (88.23%), and 7a (85.29%). The reporting rate of the remaining items was below 60%. Subgroup analysis results showed that the average score and RIGHT score of the guidance class in the four fields of AGREE Ⅱ (rigor, clarity, application and editorial independence) were higher than those of the consensus class. Guidelines and consensus formulated based on evidence-based medicine methods were higher than those formulated based on expert opinions or reviews in the three fields of AGREE II (rigor, application and editorial independence). The average scores of foreign guidelines and consensus in 6 fields and RIGHT scores of AGREE Ⅱ were higher than those of domestic guidelines and consensus. Conclusion The AGREE Ⅱ of 6 fields average score and RIGHT score in foreign guidelines are higher than those in domestic guidelines.
ObjectiveTo explore the risk factors for central venous catheter (CVC)-related infections and its Countermeasures, as CVC is an important vascular access for blood purification and is widely used in clinical applications, but catheter-related infection is one of the common severe complications. MethodsWe retrospectively analyzed the clinical data of 725 patients with complicated infections of indwelling center venous double lumen catheter treated between January 2009 and December 2012. ResultsAmong all 725 cases, 15 had catheter-related infection. There were one case of subcutaneous tunnel infection (staphylococcus aureus by the secretion culture, negative for blood culture), and 14 cases of positive blood culture including 9 staphylococcus aureus cases, 3 escherichia coli cases, 1 colorless bacillus case and 1 stenotrophomonas maltophilia case. Eight cases were cured by antibiotic therapy while antibiotics were invalid in the other 7 cases resulting in tube withdrawing. ConclusionThe central venous catheter-related infections are related to medical service ability, catheter indwelling position, indwelling time, hemodialysis adequacy, patients' general condition and personal hygiene. Taking relative measures in view of each factor is the key to prevent infections.
ObjectiveTo explore the influence of three central venous catheter biomedical materials (polyurethane, silicone, and polyvinyl chloride) on the proliferation, apoptosis, and cell cycle of Xuanwei Lung Cancer-05 (XWLC-05) cells so as to provide the basis for clinical choice of central venous catheter. MethodsXWLC-05 cells were cultured and subcultured, and the cells at passage 3 were cultured with polyurethane, silicone, and polyvinyl chloride (1.0 cm × 1.0 cm in size), and only cells served as a control. At 24, 48, and 72 hours after cultured, MTT assay was used to detect the cellular proliferation and flow cytometry to detect the cell cycle and apoptosis. At 72 hours after cultured, inverted microscope was used to observe the cell growth. ResultsInverted microscope showed the cells grew well in control group, polyurethane group, and silicone group. In polyvinyl chloride group, the cells decreased, necrosed, and dissolved; residual adherent cells had morphologic deformity and decreased transmittance. At 24 and 48 hours, no significant difference in proliferation, apoptosis, and cell cycle was found among 4 groups (P gt; 0.05). At 72 hours, the proliferations of XWLC-05 cells in three material groups were significantly inhibited when compared with control group (P lt; 0.05), and the cells in polyvinyl chloride group had more significant proliferation inhibition than polyurethane group and silicone group (P lt; 0.05), but there was no signifcant difference in proliferation inhibition between polyurethane group and silicone group (P gt; 0.05). Compared with the control group, three material groups had significant impact on the rate of apoptosis and cell cycle: polyvinyl chloride group was the most remarkable, followed by silicone group, polyurethane group was minimum (P lt; 0.05). ConclusionPolyvinyl chloride can significantly impact the proliferation, apoptosis, and cell cycle of XWLC-05 cells; polyurethane has better biocompatibility than polyvinyl chloride and silicone
Objective\ To investigate the clinical significance of measuring central venous pressure in patients after cardiac surgery.\ Methods\ Twenty four patients in postoperative cardiac surgery were randomly chosen, and investigated under three fettles:(1) The patients were sent into intensive care unit on mechanical ventilation; (2) They were all conscious and on mechanical ventilation 8 hours after operation; (3) 24 hours after operation, the patients were conscious with normal breathing.
ObjectiveTo investigate the diagnostic value of simultaneous culture of central venous catheter (CVC) blood and peripheral blood for catheter-related bloodstream infections (CRBSI). MethodsNon-septic patients who were treated with CVC for 1 to 7 days were enrolled from February 2011 to February 2015 in the First Hospital of Wuhan City. Blood were collected from both peripheral vein and CVC for bacterial culture once a day. The CVCs were removed from patients who got CRBSI from the first to sixth day and who did not by the end of the seventh day for semi-quantitative catheter culture, quantitative catheter culture, CVC culture and catheter exit-site pus culture. The diagnosis of CRBSI were based on 4 methods as follows:A, both peripheral and CVC blood were positive and the time of CVC blood positive were 2 hours earlier than peripheral blood; B, the colonies of semi-quantitative catheter cultures were ≥15 CFU and the microorganisms in both CVC and peripheral blood were the same; C, the colonies ratio of CVC and peripheral blood cultures were ≥5:1; D, the microorganisms in both the peripheral blood and catheter exit-site pus were the same. The diagnostic value of the four methods was compared. ResultsA total of 1 086 patients were finally included. From 1 to 7 days, 64 patients were peripheral blood positive, 79 were CVC blood positive. The patients diagnosed as CRBSI using A, B, C, and D methods were 58, 55, 51, and 36, respectively. Sixty patients were diagnosed as CRBSI based on the clinical and laboratory methods. For the number of patients diagnosed with CRBSI, there was no significant difference between A and B (P>0.05), as well as A and C (P>0.05), however, significant difference was found between A and D (P<0.05). In the diagnostic value of CRBSI, A is similar to B (sensitivity:93.33% vs. 91.67%, specificity:99.81% vs. 100%, Youden index:0.93 vs. 0.92). A, B and C had almost similar specificity (all >99%), however, A had higher sensitivity (93.33% vs. 76.67%, 58.33%) and Youden index (0.93 vs. 0.76, 0.58). ConclusionSimultaneous culture of CVC blood and peripheral blood has a good diagnostic value for CRBSI.
ObjectiveTo evaluate the feasibility and safety of improving chest drainage procedure by applying postoperative chest drainage with central venous catheter for uniportal video-assisted thoracoscopic surgery (VATS) lobectomy in fast track recovery. MethodsBetween July 2016 and March 2018, a total of 150 patients who underwent uniportal VATS lobectomy by the same chief surgeon were recruited. All patients were randomly divided into two groups including a trial group and a control group. In the trial group, there were 44 males and 28 females with an average age of 47±11 years. Central venous catheter and 26F silicone rubber tuber were used and chest tube was removed when drainage volume less than 300 ml/d. Chest X ray was conducted three days after discharge from hospital and the central venous catheter was removed after thoracentesis. In the control group, there were 40 males and 29 females with an average ages of 52±13 years, 26 F silicone rubber tuber and chest tube were removed when drainage volume less than 100 ml/d. The clinical effectiveness was compared between the two groups. ResultsNo statistically significant difference was observed between the trial group and the control group in the date of preoperative general information, the occurrence of postoperative complications and the visual analogue score on Day1 after the operation. However, the visual analogue score, intubation time, post-operative length of stay, the frequency of using tramadol were all significantly shorter or lower in the trial group when compared with the control group (P<0.05). Seven patients of the trial group suffered moderate pleural effusion after intubation, which was significantly more than that of the control group (P<0.05). Six patients recovered after thoracentes through central venous catheter. The average amount of pleural effusions before removing the central venous catheter was 74.8 ml. ConclusionThe use of central venous catheter and 26 F silicone rubber tuber after uniportal VATS lobectomy is safe and feasible for the early removal of chest tube. It is beneficial to fast track recovery.
Objective This study aimed to quantitatively investigate the preferences and willingness of patients with breast cancer to pay for central venous access and to provide implications for the clinical selection of appropriate chemotherapy pathways. Methods A discrete-choice experiment survey was conducted to elicit the preferences for central venous access in three hospitals in east, middle and west China. The conditional logit model was used to analyse the relative importance of six central venous access-related attributes: risk of thrombosis, risk of infections, restriction of daily activities, maintenance interval, catheter incision size and out-of-pocket costs. Results The valid data for a total of 103 patients was collected from three hospitals. All six attributes significantly influenced patients’ preferences for central venous access. The risk of thrombosis (RIS=26.0%) and risk of infections (RIS=24.3%) were the top two attributes influencing patients’ preferences for central venous access. To reduce the risk of thrombosis and infection from 12% and 8% to 1%, patients were willing to pay 14 861.2 yuan and 13 907.2 yuan, respectively. The catheter incision size was of least concern (RIS=4.6%); the patients were only willing to pay 2 653.6 yuan for smaller catheter incisions. Conclusion Thrombosis and infection are the primary factors that affect the choice of central venous access for patients with breast cancer. Patients have a sensitive trade-off between safety and out-of-pocket costs; with the change in thrombosis and infection risk, patients’ willingness to pay changes accordingly.