Objective To systematically evaluate the clinical effectiveness of right ventricular outflow tract (RVOT) pacing for heart disease. Methods We searched the electronic bibliographic databases, including The Cochrane Library, PubMed, EMbase, CBM, VIP, CNKI, and WANFANG database to assemble the randomized controlled trials (RCTs) of RVS Pacing compared with right ventricular apical (RVA) pacing for heart disease. The deadline of the retrieval time was January 2010. Data were extracted and evaluated by two reviewers independently with a designed extraction form. The RevMan 5.0 software was used for meta-analysis. Results A total of 16 RCTs involving 926 patients were included. The results of meta-analyses showed that right ventricular outflow tract (RVOT) pacing significantly increased the left ventricular ejection fraction of 3 months and 18 months (WMD= 3.53, 95%CI 1.02 to 6.04; WMD= 8.94, 95%CI 7.35 to 10.52).Compared with RVA pacing, RVOT pacing could significantly reduce the QRS wave duration (WMD= –22.42, 95%CI –31.05 to – 13.80) immediately after the operation. Conclusion RVOT pacing can give patients a good physiological state which is more consistent with biventricular electric conduction and lead to the hemodynamic improvement in the short term, but the long-term result is not confident.
ObjectivesTo systematically review the efficacy and safety of autologous bone marrow cells therapy for patients with diabetic foot. GRADE system was used to evaluate the evidence quality of outcomes.MethodsWe searched databases including PubMed, EMbase, The Cochrane Library, CBM, WanFang Data and CNKI for randomized controlled trials (RCTs) about bone marrow cell transplantation in patients with diabetic foot from inception to February 28th 2017. Two reviewers independently screened literature, extracted data and assessed the risk of bias of included studies. Meta-analysis was performed using RevMan 5.3 software. The evidence quality was evaluated by using GRADE profiler 3.6 software.ResultsFour RCTs were included. Meta-analysis showed that the bone marrow cell transplantation could decrease the rate of amputation (RR=0.08, 95%CI 0.00 to 1.32, P=0.08) and rest pain score (MD=–1.89, 95%CI –2.24 to –1.55, P<0.000 01), increase the rate of ameliorate ulcer healing (RR=2.01, 95%CI 1.45 to 2.79,P<0.000 1) and the quantity of new collateral vessels (MD=1.33, 95%CI 0.60 to 2.05,P<0.000 3). Besides, bone marrow cell transplantation could improve ankle-brachial index (MD=0.16, 95%CI 0.10 to 0.22,P<0.000 01) and transcutaneous arterial oxygen tension (MD=18.81, 95%CI 16.06 to 21.57,P<0.000 01). No adverse event was reported for all included studies. The qualities of evidence for all outcomes were rated as "low" to "very low".ConclusionBased on the current evidence, autologous bone marrow cells transplantation therapy has a certain effect and it is safe for patients with diabetic foot. However, due to the limited quantity and quality of included studies, the above conclusions are still needed more multicenter clinical trials with large sample size to confirm.
ObjectiveTo systematically review the efficacy and safety of capecitabine combined with irinotecan (CAPIRI) versus capecitabine combined with oxaliplatin (CAPOX) for patients with advanced/metastatic colorectal cancer.MethodsPubMed, EMbase, The Cochrane Library, VIP, WanFang Data and CNKI databases were electronically searched to collect randomized controlled trials (RCTs) on CAPIRI versus CAPOX for patients with advanced/metastatic colorectal cancer from inception to August 2018. Two reviewers independently screened literature, extracted data, and assessed the risk of bias of included studies. Then, meta-analysis was performed by using RevMan 5.3 software.ResultsA total of 12 RCTs involving 1 049 patients were included. The results of meta-analysis showed that: there were no significant differences in complete response (CR), partial response (PR), stable disease (SD), progression disease (PD), overall respond rate (ORR), median progression-free survival (mPFS), and median overall survival (mOS) between two groups (P>0.05). However, CARIRI group was lower on the disease control rate (RR=0.93, 95%CI 0.86 to 1.00, P=0.04) than CAPOX group. Incidence of diarrhea was higher in CAPIRI group (RR=1.83, 95%CI 1.37 to 2.45, P<0.000 1). However, the incidence rate of peripheral neurotoxicity in CAPOX group was higher (RR=0.13, 95%CI 0.05 to 0.35, P<0.000 1). There were no significant differences between two groups in the incidence rates of nausea and vomiting, hand-foot syndrome, anemia, thrombocytopenia, leukocytopenia and alopecia (P>0.05).ConclusionsCurrent evidence shows that two groups are equivalent in terms of curative effects. CAPIRI has a higher incidence rate of diarrhea, while CAPOX has a higher risk of peripheral neurotoxicity. Due to limited quality and quantity of the included studies, more high quality studies are required to verify above conclusions.
ObjectiveTo systematically review the correlation between sleep quality and social support of the elderly.MethodsDatabases including PubMed, MEDLINE, The Cochrane Library, Springerlink, ProQuest, CMB, CNKI, VIP, and WanFang Data were searched to collect studies on the correlation between sleep quality and social support of the elderly from January 1996 to January 2020. Two reviewers independently screened literature, extracted data and evaluated risk of bias of included studies. Meta-analysis was then performed using RevMan 5.3 software.ResultsA total of 9 studies involving 2 427 elderly people were included. The meta-analysis showed that the combined correlation coefficient between sleep quality and social support was -0.40 (95%CI −0.54 to −0.26). The correlation between sleep quality and social support of the elderly varied with the year of publication and sample size, however without regular change. The correlation coefficient of the elderly from institutions (hospital or pension institutions) was higher than that of the community (−0.33 vs. −0.26); the correlation coefficient of the elderly with health problems was higher than those without health problems (−0.32 vs. −0.25); the results measured by non-random sampling method were higher than those measured by random sampling (−0.37 vs. −0.23); and the results measured by Pittsburgh sleep quality index (PSQI) and social support rating scale (SSRS) were higher than those measured by PSQI and perceived social support scale (PSSS) (−0.30 vs. −0.13).ConclusionsThe higher the level of social support of the elderly in China, the lower the score of PSQI, and the better the sleep quality, in which there are differences in different sample sources and physical conditions.
ObjectiveTo systematically review the prognostic value of E-cadherin expression in stage I non-small cell lung cancer (NSCLC). MethodsDatabases including PubMed, EMbase, The Cochrane Library (Issue 1, 2015), CNKI, CBM and WanFang Data were searched to collect cohort studies about the prognostic value of E-cadherin expression in stage I NSCLC from inception to Jun. 2015. Two reviewers independently screened literature, extracted data and assessed the risk of bias of included studies. Then meta-analysis was performed by using RevMan 5.3 software. ResultsA total of 9 cohort studies, involving 1028 patients were included. The results of meta-analysis showed that, the lower E-cadherin expression group had a lower overall survival rate than that of the higher E-cadherin expression group (HR=1.74, 95%CI 1.36 to 2.24, P＜0.00001). However, there was no significant difference between two groups in disease free survival (HR=2.08, 95%CI 0.8 to 5.40, P=0.13). Subgroup analysis showed that, the lower E-cadherin expression group had a worse overall survival when groups were divided by different cut-off values, E-cadherin location site or different nations (all value P＜0.05). ConclusionCurrent evidence shows that, reduced E-cadherin expression could predict poor prognostic outcome in patients with stage I NSCLC. Due to the limited quantity and quality of included studies, the above conclusions need to be verified by more high quality studies.
Objective To systematically review the prognostic significance of extranodal extension in gastric cancer, esophageal cancer and gastroesophageal junction cancer. Methods We searched EMbase, The Cochrane Library (Issue 9, 2016), PubMed, CBM, CNKI, VIP and WanFang Data databases from inception to August 2016, to collect cohort studies about the prognostic significance of extranodal extension. Two reviewers independently screened literature, extracted data and evaluated the risk of bias of included studies. Then, meta-analysis was performed by using RevMan 5.2 software. Results A total of 16 studies involving 9 445 participants were included. The results of meta-analysis showed that for gastric cancer patients, the overall survival (OS) (HR=1.71, 95%CI 1.49 to 2.00,P<0.000 01), disease free survival (DFS) (HR=1.39, 95%CI 1.12 to 1.73,P=0.003) and cancer specific survival (HR=1.52, 95%CI 1.18 to 1.96,P=0.001) in ENE(+) group were lower than ENE(–) group. For esophageal cancer and gastroesophageal junction cancer patients, the overall survival (OS) (HR=1.84, 95%CI 1.49 to 2.27,P<0.000 01), disease free survival (DFS) (HR=2.18, 95%CI 1.70 to 2.81,P<0.000 01) and cancer specific survival (HR=1.73, 95%CI 1.19 to 2.52,P=0.004) in ENE(+) group were lower than ENE(–) group. Conclusion Current evidence indicates that ENE(+) was correlated with a poor prognosis in gastric cancer, esophageal cancer and gastroesophageal junction cancer patients. Due to the quantity and quality limitations of included studies, more high quality cohort studies are needed to verify the above conclusions.
Objective To systematically review the association between exposure to bisphenol A during pregnancy and spontaneous abortion. Methods The PubMed, Web of Science, EMbase, CNKI, WanFang Data and VIP databases were electronically searched to identify cohort studies and case-control studies related to bisphenol A exposure and spontaneous abortion from inception to April 1st, 2022. Two reviewers independently screened the literature, extracted data, and assessed the risk of bias of the included studies. Meta-analysis was then performed using Stata 16.0 software. Results A total of 7 case-control studies and 1 cohort study were included, with a total of 1 179 subjects. The results of meta-analysis showed that there was a statistically significant difference in bisphenol A concentrations between the spontaneous abortion group and the control group regardless of whether the sample source was serum or urine (SMD serum=1.05, 95%CI 0.34 to 1.77, P=0.004; SMD urine=0.20, 95%CI 0.02 to 0.38, P=0.027). Conclusion The current evidence shows that exposure to bisphenol A during pregnancy may lead to unexplained recurrent spontaneous abortion. Due to the limited quantity and quality of the included studies, more high-quality studies are needed to verify the above conclusion.
Objective To systematically review the effectiveness and safety of implanting sustained-release 5-fluorouracil during hepatectomy in patients with primary liver cancer (PLC). Methods We electronically searched the following databases including CENTRAL, MEDLINE, EMbase, WanFang Data, CBM, CNKI and VIP to collect randomized controlled trials (RCTs) on the effectiveness and safety of implanting sustained-release 5-fluorouracil during hepatectomy vs. hepatectomy alone for PLC from inception to October, 2012. Two reviewers independently screened literature according to the inclusion and exclusion criteria, extracted data and assessed the quality of the included studies. Then, meta-analysis was performed using RevMan 5.0 software. Results A total of 6 RCTs involving 951 patients were included. The results of meta-analysis showed that, implanting sustained-release 5-fluorouracil during hepatectomy significantly decreased the total recurrence rates of 1-year and 3-year (1 year: RR=0.48, 95%CI 0.36 to 0.65, Plt;0.000 01; 3 years: RR=0.69, 95%CI 0.50 to 0.96, P=0.03). However, the two groups were alike in decreasing the surem levels of AFP. Besides, the commonly-seen adverse reaction of implanting sustained-release 5-fluorouracil during hepatectomy included abdominal pain and bile leakage. Conclusion Implanting sustained-release 5-fluorouracil during hepatectomy can decrease the 1-year and 3-year recurrence rates of PLC patients, especially for HCC at the early stage. But this conclusion should be interpreted with caution and needs more strictly-designed RCTs with large sample size and enough long follow-up to verify.
Objective To systematically evaluate effectiveness and safety of nerve block therapy for neck pain. Methods Databases including CENTRAL, PubMed, Ovid, ISI, EBSCO, CBM and CNKI were searched from the date of their establishment to November 2011, and relevant references were also retrieved manually to collect both domestic and abroad randomized controlled trials (RCTs) about nerve block therapy for neck pain. According to the inclusion and exclusion criteria, two researchers independently screened literature, extracted data, and assessed the quality of the included studies. Then the meta-analysis was conducted using RevMan 5.0 software. Results A total of 10 studies involving 625 participants were included. The results of qualitative analysis showed that: a) The short-term effectiveness of the nerve block therapy group was markedly superior to the placebo group, the cognitive therapy group and the transcutaneous electric nerve stimulation (TENS) group; and b) The short-term effectiveness of the combined nerve block therapy was markedly superior to the single nerve block therapy. The results of meta-analysis demonstrated that: a) There was no significant difference between the greater occipital nerve (GON) block group and the C2/3 nerve block group in neither short-term (SMD=−0.13, 95%CI −0.58 to 0.32, P=0.58) nor medium-term effectiveness (SMD=−0.01, 95%CI −0.46 to 0.44, P=0.98); and b): There was no significant difference between the injection with steroids group and the injection without steroids group in both short-term (SMD=0.16, 95%CI −0.13 to 0.44, P=0.28) and long-term effectiveness (SMD=0.27, 95%CI −0.02 to 0.55, P=0.07). Conclusion Current evidence shows nerve block therapy for neck pain is safe and especially good in short-term effectiveness. The combined nerve block therapy is probably more effective, but the effectiveness is not obviously improved by injection with or without steroids, and by different block methods. Due to the limitation of quality, quantity and total sample size of the included studies, this conclusion still needs to be proved by conducting more high quality and large scale studies.
Objective To systematically review the clinical efficiency and safety after topical administration of tranexamic acid in total hip arthroplasty. Methods Relevant randomized controlled trials were identified from databases such as Cochrane Library, PubMed, Embase and CNKI from the establishment of the database to August, 2017. A systematic review was performed to compare total blood loss, the rate of transfusion and thromboembolism events between the tranexamic acid group and the control group. And the patients in tranexamic acid group were treated with tranexamic acid for hemorrhage after total hip arthroplasty, while the patients in the control group were not treated with tranexamic acid or used isotonic saline. Analysis was carried out using Review Manager version 5.2.0 software. Results Eight studies were incorporated into the Meta-analysis. The results of Meta-analysis showed that there was significant difference in total blood loss between two groups [weighted mean difference (WMD)=–360.27 mL, 95% confidence interval (CI) (–412.68, –307.87) mL, P<0.000 01]. There was significant difference in the rate of transfusion between two groups [ (odds ratio,OR)=0.22, 95%CI (0.14, 0.33), P<0.000 01]. There was no significant difference in complications between two groups [OR=1.48, 95%CI (0.41, 5.34), P=0.55]. Conclusion Topical administration of tranexamic acid could significantly reduce total blood loss and transfusion requirements in primary total hip arthroplasty, and would not increase thromboembolic complications.