scholarly journals Metabolically healthy obesity and risk of cardiovascular disease, cancer, and all-cause and cause-specific mortality: a protocol for a systematic review and meta-analysis of prospective studies

BMJ Open ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. e032742 ◽  
Author(s):  
Simiao Tian ◽  
Yazhuo Liu ◽  
Ao Feng ◽  
Keli Lou ◽  
Huimin Dong
Keyword(s):  
Systematic Review ◽  
Cardiovascular Disease ◽  
Prospective Studies ◽  
Data Extraction ◽  
Meta Analysis ◽  
Adjusted Relative Risk ◽  
Benign Condition ◽  
Specific Mortality ◽  
Total Cancer ◽  
Metabolically Healthy

IntroductionMetabolically healthy obese phenotype (MHO) refers to obese individuals with an adequate metabolic profile and absence of metabolic syndrome. Many prospective studies have reported the benign condition relating the MHO phenotype and its potential role in reducing risk of cardiovascular disease, total cancer, and all-cause and cause-specific mortality. However, inconsistent results were found and the question remains controversial. We aim to conduct a systematic review and meta-analysis to clarify the associations these associations from relevant prospective studies.Methods and analysisThe Preferred Reporting Items for Systematic Reviews and Meta-Analyses for Protocols 2015 statement was used to prepare this protocol. MEDLINE, Web of Science databases, EMBASE and Cochrane Database will be used for literature search from their inception up to December 2019 with restriction of published studies in English. Published prospective studies reporting adjusted relative risk (RR) estimates for the association between MHO phenotype and cardiovascular disease, total cancer, all-cause or cause-specific mortality will be included. The process of study screening, selection and data extraction will be performed independently by two reviewers, and the risk of bias for the studies included will be assessed using the Newcastle-Ottawa Quality Assessment Scale. HRs or RRs for disease events and mortality with 95% CIs will be considered as primary outcomes, and summary HRs/RRs will be pooled using random-effects models. The Cochrane’s Q and the I2statistics will be used to assess and quantify heterogeneity, respectively. Subgroup analysis will also be carried out according to study characteristics to investigate potential sources of heterogeneity.Ethics and disseminationAs this meta-analysis is performed based on the published studies, no ethical approval and patient safety considerations are required. The findings of the study will be reported and submitted to a peer-reviewed journals for publication.PROSPERO registration numberCRD42019121766.

scholarly journals Nut consumption and incidence of cardiovascular diseases and cardiovascular disease mortality: a meta-analysis of prospective cohort studies

2019 ◽  
Vol 77 (10) ◽  
pp. 691-709 ◽  
Author(s):  
Nerea Becerra-Tomás ◽  
Indira Paz-Graniel ◽  
Cyril W.C. Kendall ◽  
Hana Kahleova ◽  
Dario Rahelić ◽  
...  
Keyword(s):  
Systematic Review ◽  
Cardiovascular Disease ◽  
Prospective Studies ◽  
Data Extraction ◽  
Meta Analysis ◽  
Nutrition Therapy ◽  
Grade System ◽  
Pool Data ◽  
Inverse Association ◽  
Stroke Incidence

Abstract Context Previous meta-analyses evaluating the association between nut consumption and the risk of cardiovascular disease (CVD) had substantial methodological limitations and lacked recently published large prospective studies; hence, making an updated meta-analysis highly desirable. Objective To update the clinical guidelines for nutrition therapy in relation to the European Association for the Study of Diabetes (EASD), a systematic review and meta-analysis of prospective studies was conducted using the Grading of Recommendations, Assessment, Development, and Evaluation (GRADE) system to summarize the evidence of the association between total nuts, specific types of nuts, and the incidence of, and mortality from, CVD outcomes. Data sources Relevant articles were identified by searching the PubMed and Cochrane databases. Data extraction Two independent researchers screened the articles to identify those that met the inclusion criteria. Data analysis The inverse variance method with fixed-effect or random-effects models was used to pool data across studies (expressed as risk ratio [RR] and 95% confidence interval [CI]). Heterogeneity was tested and quantified using the Cochrane Q test and I2-statistic, respectively. The GRADE system was used to assess the quality of the evidence. Results Nineteen studies were included in the analyses. The results revealed an inverse association between total nut consumption (comparing highest vs lowest categories) and CVD incidence (RR, 0.85; 95%CI, 0.800.91; I2, 0%), CVD mortality (RR, 0.77; 95%CI, 0.72–0.82; I2, 3%), coronary heart disease (CHD) incidence (RR, 0.82; 95%CI, 0.69–0.96; I2, 74%), CHD mortality (RR, 0.76; 95%CI, 0.67–0.86; I2, 46%), stroke mortality (RR, 0.83; 95%CI, 0.75–0.93; I2, 0%), and atrial fibrillation (RR, 0.85; 95%CI, 0.73–0.99; I2, 0%). No association was observed with stroke incidence and heart failure. The certainty of the evidence ranged from moderate to very low. Conclusions This systematic review and meta-analysis revealed a beneficial role of nut consumption in reducing the incidence of, and mortality from, different CVD outcomes.

Endogenous oestradiol and cardiovascular disease in healthy men: a systematic review and meta-analysis of prospective studies

Heart ◽  
2012 ◽  
Vol 98 (20) ◽  
pp. 1478-1482 ◽  
Author(s):  
Guy Vandenplas ◽  
Dirk De Bacquer ◽  
Patrick Calders ◽  
Tom Fiers ◽  
Jean-Marc Kaufman ◽  
...  
Keyword(s):  
Systematic Review ◽  
Cardiovascular Disease ◽  
Prospective Studies ◽  
Meta Analysis ◽  
Healthy Men

scholarly journals Local anaesthetics combined with vasoconstrictors in patients with cardiovascular disease undergoing dental procedures: systematic review and meta-analysis protocol

BMJ Open ◽  
2017 ◽  
Vol 7 (11) ◽  
pp. e014611 ◽  
Author(s):  
Caio Chaves Guimaraes ◽  
Rogério Heládio Lopes Motta ◽  
Cristiane de Cássia Bergamaschi ◽  
Jimmy de Oliveira Araújo ◽  
Natalia Karol de Andrade ◽  
...  
Keyword(s):  
Systematic Review ◽  
Cardiovascular Disease ◽  
Data Extraction ◽  
Meta Analysis ◽  
Local Anaesthetics ◽  
Cochrane Central Register ◽  
Assessment Development ◽  
Dental Procedures ◽  
Central Register ◽  
Registration Number

IntroductionThe use of vasoconstrictors combined with local anaesthetics (LAs) in dentistry for patients with cardiovascular disease (CVD) is still controversial in the scientific literature. It raises concerns regarding the possibility of transient episodes, triggering negative cardiovascular outcomes.Method/designTrials eligible for our systematic review will enrol patients with CVD who have undergone dental treatments carried out with the use of LAs by comparing two arms: LAs with vasoconstrictors and LAs without vasoconstrictors. The research will be conducted in the electronic databases, namely Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE, Embase, Healthstar (via Ovid), Cumulative Index to Nursing and Allied Health Literature and Web of Science, from their inception to December 2017, without any restrictions in terms of language and status of publication. A team of reviewers will independently assess titles, abstracts and complete text to determine eligibility. For eligible studies, the same reviewers will perform data extraction and evaluate the risk of bias in the selected articles. The selected outcomes comprise death, mortality by a specific cause, stroke, acute myocardial infarction, hospitalisation, pain, bleeding, arrhythmias, ischaemic episodes, anxiety, adverse effects, changes in blood pressure, changes in heart rate, anxiety and results obtained via oximetry. Whenever possible, we will conduct a meta-analysis to establish the effects of LAs with and without vasoconstrictors in the patients with CVD, and the overall quality of evidence for each outcome will be determined using the Grading of Recommendations Assessment, Development and Evaluation classification system.Ethics and disseminationEthics committee approval was not necessary because this is a protocol of systematic review. This systematic review will be submitted for presentation at conferences and for publication in a peer-reviewed journal. Our review will assess the risks of cardiovascular events when using LAs with and without vasoconstrictors in patients with CVD, focusing on important clinical outcomes.PROSPERO registration numberCRD42016045421.

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