scholarly journals Obesity paradox in subarachnoid hemorrhage: a systematic review

2019 ◽  
Vol 43 (6) ◽  
pp. 1555-1563
Author(s):  
Ilari Rautalin ◽  
Jaakko Kaprio ◽  
Miikka Korja

AbstractAs the number of obese people is globally increasing, reports about the putative protective effect of obesity in life-threatening diseases, such as subarachnoid hemorrhage (SAH), are gaining more interest. This theory—the obesity paradox—is challenging to study, and the impact of obesity has remained unclear in survival of several critical illnesses, including SAH. Thus, we performed a systematic review to clarify the relation of obesity and SAH mortality. Our study protocol included systematic literature search in PubMed, Scopus, and Cochrane library databases, whereas risk-of-bias estimation and quality of each selected study were evaluated by the Critical Appraisal Skills Program and Cochrane Collaboration guidelines. A directional power analysis was performed to estimate sufficient sample size for significant results. From 176 reviewed studies, six fulfilled our eligibility criteria for qualitative analysis. One study found paradoxical effect (odds ratio, OR = 0.83 (0.74–0.92)) between morbid obesity (body mass index (BMI) > 40) and in-hospital SAH mortality, and another study found the effect between continuously increasing BMI and both short-term (OR = 0.90 (0.82–0.99)) and long-term SAH mortalities (OR = 0.92 (0.85–0.98)). However, according to our quality assessment, methodological shortcomings expose all reviewed studies to a high-risk-of-bias. Even though two studies suggest that obesity may protect SAH patients from death in the acute phase, all reviewed studies suffered from methodological shortcomings that have been typical in the research field of obesity paradox. Therefore, no definite conclusions could be drawn.

2018 ◽  
Vol 4 (1) ◽  
pp. e000341 ◽  
Author(s):  
Andy J Daly-Smith ◽  
Stephen Zwolinsky ◽  
Jim McKenna ◽  
Phillip D Tomporowski ◽  
Margaret Anne Defeyter ◽  
...  

ObjectiveTo examine the impact of acute classroom movement break (CMB) and physically active learning (PAL) interventions on physical activity (PA), cognition, academic performance and classroom behaviour.DesignSystematic review.Data sourcesPubMed, EBSCO, Academic Search Complete, Education Resources Information Center, PsycINFO, SPORTDiscus, SCOPUS and Web of Science.Eligibility criteria for selecting studiesStudies investigating school-based acute bouts of CMB or PAL on (PA), cognition, academic performance and classroom behaviour. The Downs and Black checklist assessed risk of bias.ResultsTen PAL and eight CMB studies were identified from 2929 potentially relevant articles. Risk of bias scores ranged from 33% to 64.3%. Variation in study designs drove specific, but differing, outcomes. Three studies assessed PA using objective measures. Interventions replaced sedentary time with either light PA or moderate-to-vigorous PA dependent on design characteristics (mode, duration and intensity). Only one study factored individual PA outcomes into analyses. Classroom behaviour improved after longer moderate-to-vigorous (>10 min), or shorter more intense (5 min), CMB/PAL bouts (9 out of 11 interventions). There was no support for enhanced cognition or academic performance due to limited repeated studies.ConclusionLow-to-medium quality designs predominate in investigations of the acute impacts of CMB and PAL on PA, cognition, academic performance and classroom behaviour. Variable quality in experimental designs, outcome measures and intervention characteristics impact outcomes making conclusions problematic. CMB and PAL increased PA and enhanced time on task. To improve confidence in study outcomes, future investigations should combine examples of good practice observed in current studies.PROSPERO registration numberCRD42017070981.


BMJ Open ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. e030536
Author(s):  
Kanika Chaudhri ◽  
Madeleine Kearney ◽  
Richard O Day ◽  
Anthony Rodgers ◽  
Emily Atkins

IntroductionForgetting to take a medication is the most common reason for non-adherence to self-administered medication. Dose administration aids (DAAs) are a simple and common solution to improve unintentional non-adherence for oral tablets. DAAs can be in the form of compartmentalised pill boxes, automated medication dispensing devices, blister packs and sachets packets. This protocol aims to outline the methods that will be used in a systematic review of the current literature to assess the impact of DAAs on adherence to medications and health outcomes.Methods and analysisRandomised controlled trials will be identified through electronic searches in databases including EMBASE, MEDLINE, CINAHL and the Cochrane Library, from the beginning of each database until January 2020. Two reviewers will independently screen studies and extract data using the standardised forms. Data extracted will include general study information, characteristics of the study, participant characteristics, intervention characteristics and outcomes. Primary outcome is to assess the effects of DAAs on medication adherence. Secondary outcome is to evaluate the changes in health outcomes. The risk of bias will be ascertained by two reviewers in parallel using The Cochrane Risk of Bias Tool. A meta-analysis will be performed if data are homogenous.Ethics and disseminationEthics approval will not be required for this study. The results of the review described within this protocol will be disseminated through publication in a peer-reviewed journal and relevant conference presentations.PROSPERO registration numberCRD42018096087


BMJ Open ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. e028379 ◽  
Author(s):  
Jenaya Goldwag ◽  
Priscilla Marsicovetere ◽  
Peter Scalia ◽  
Heather A Johnson ◽  
Marie-Anne Durand ◽  
...  

ObjectivesOur aim was to conduct a systematic review of the literature to determine the impact of patient decision aids (PDA) on patients facing treatment decisions for colorectal cancer.DesignSystematic review.Data sourcesSources included Embase, Medline, Web of Science, CINAHL and the Cochrane Library from inception to June, 20, 2019.Eligibility criteriaWe included randomised controlled trials (RCTs), cohort studies, mixed methods and case series in which a PDA for colorectal cancer treatment was used. Qualitative studies were excluded from our review.Data extraction and synthesisFollowing execution of the search strategy by a medical librarian, two blinded independent reviewers identified articles for inclusion. Two blinded reviewers were also responsible for data extraction, risk of bias and study quality assessments. Any conflict in article inclusion or extraction was resolved by discussion.ResultsOut of 3773 articles identified, three met our inclusion criteria: one RCT, one before-and-after study and one mixed-method study. In these studies, the use of a PDA for colorectal cancer treatment was associated with increased patient knowledge, satisfaction and preparation for making a decision. On quality assessment, two of three studies were judged to be of low quality.ConclusionA paucity of evidence exists on the effect of PDA for colorectal cancer treatment with existing evidence being largely of low quality. Further investigation is required to determine the effect of decision aids for colorectal cancer treatment as well as reasons for the lack of PDA development and implementation in this area.Prospero registration numberCRD42018095153.


2021 ◽  
Vol 11 ◽  
Author(s):  
Alejandro López-Valenciano ◽  
David Suárez-Iglesias ◽  
Miguel A. Sanchez-Lastra ◽  
Carlos Ayán

Purpose: This systematic review aimed to analyze the impact that the COVID-19 lockdown had on the amount of physical activity performed by university students.Materials and Methods: A systematic electronic search for studies providing information regarding physical activity levels pre and during COVID-19 pandemic in university students was performed up to 20th October 2020 in the databases Cochrane Library, PubMed, SPORTDiscus, and Web of Science. The risk of bias of external validity quality of included studies was assessed by means of those the Newcastle-Ottawa Scale (NOS). The quality of the evidence for main outcomes was graded using the Grading of Recommendations Assessment, Development and Evaluation (GRADE) approach.Results and Conclusions: A total of 10 studies were selected. Physical activity levels were assessed by means of questionnaires (10 studies) and accelerometer (1 study). Risk of bias was regarded as low and high in six and four investigations, respectively. The quality of evidence was downgraded to low. A significant reduction of physical activity levels were observed in 9 studies. Compared to pre-lockdown values, five studies showed a reduction of light/mild physical activity (walking) between 32.5 and 365.5%, while seven studies revealed a reduction of high/vigorous physical activity between 2.9 and 52.8%. Walking, moderate, vigorous, and total physical activity levels have been reduced during the COVID-19 pandemic confinements in university students of different countries. Despite of the reductions, those who met the current minimum PA recommendations before the lockdown generally met the recommendations also during the confinements.


2020 ◽  
Vol 33 (Supplement_1) ◽  
Author(s):  
P Prasad ◽  
K Hardy ◽  
J Chmelo ◽  
M Navidi ◽  
A Phillips

Abstract   Esophagectomy is a complex procedure with associated high levels of morbidity. Rehabilitation programmes are being developed and increasingly utilised in the perioperative period and comprise a variety of physical, nutritional and psychological interventions. Such strategies may help reduce the incidence of postoperative complications, mitigate sarcopenia, prevent progressive frailty and restore quality of life. This systematic review aimed to identify and analyse studies reporting outcomes of post-esophagectomy rehabilitative interventions. Methods Major reference databases (PubMed, Medline, EMBASE, Cochrane Library and Google scholar) were interrogated and a systematic search with a pre-defined search strategy was performed up until January 2020. All eligible articles were screened in line with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Study quality was assessed using the MINORS (Methodological Index for Non-Randomized Studies) criteria for cohort studies and the Cochrane risk of bias tool for randomised studies. Results Three studies (n = 1 pilot study; n = 1 feasibility study and n = 1 randomised controlled trial) including some 108 patients were included in this narrative review, of whom 64 patients had undergone esophagectomy. Rehabilitative strategies utilised included a combination of physical activities such as walking and low- to moderate-intensity exercises, dietary counselling, psychological support and occupational therapy input. There was wide variation in the outcomes assessed between studies. Postoperative physical activity with exercises consistently demonstrated maximum positive impact upon cardiopulmonary fitness. The median MINORS score for included studies was 9 (8-10) and the risk of bias in the included randomised trial was low. Conclusion There is a paucity of data currently to help determine the impact that rehabilitation may have on clinical outcomes and quality of life following esophagectomy. While improved physical function has been demonstrated, there is a need to determine which interventions patients deem most important and acceptable to help them return to as close to baseline as possible. Additionally, there is a need to further understand the impact rehabilitation may have upon long-term outcomes.


BMJ Open ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. e036558
Author(s):  
Caroline Vieira Cláudio Okubo ◽  
Renata Cristina Campos Pereira Silveira ◽  
Maria José Quina Galdino ◽  
Daiane Rubinato Fernandes ◽  
Aline Aparecida Oliveira Moreira ◽  
...  

IntroductionOccupational violence affects several categories of workers; however, the health sector category has been considered at a high risk, exposing workers to physical and psychological abuse. Thus, occupational violence has decreased the quality of care in health service. This review aims to evaluate the effectiveness of interventions for the prevention and reduction of occupational violence against health professionals.Methods and analysisThis protocol is consistent with the Preferred Reporting Items for Systematic Review and Meta-Analysis Protocols. Searches will be conducted in PubMed, Embase, Cochrane Library, LILACS, Web of Science, Scopus, CINAHL and LIVIVO along with a comprehensive review of grey literature. The search will be conducted on August 1 st 2020, without language and time restrictions. Following the eligibility criteria, two independent reviewers will select the titles and abstracts and subsequently screen the full articles. If necessary, a third reviewer will assess any disagreements. All references will be imported into EndNote, and any duplicates will be removed. The data will be extracted using an extraction-based form from Cochrane. Statistical analyses will be performed using the software Cochrane Review Manager, and a meta-analysis will be performed if possible for the statistical combination of at least two studies. The risk of bias of the randomised clinical trials will be evaluated by the Risk of Bias tool from Cochrane, and the risk of bias of the non-randomised intervention studies will be evaluated using the Downs and Black scale. The quality of the evidence and strength of the classification recommendations will be assessed by the Grading of Recommendations, Assessment, Development and Evaluation.Ethics and disseminationThis review will not evaluate individual patient information and therefore does not require ethical approval. The results will be disseminated through publications in peer-reviewed journals, presentations at conferences and the doctoral thesis of the leading author.PROSPERO registration numberCRD42018111383.


2020 ◽  
Vol 29 (2) ◽  
pp. 79-91 ◽  
Author(s):  
Emer Shanley ◽  
Zena Moore ◽  
Declan Patton ◽  
Tom O’Connor ◽  
Linda Nugent ◽  
...  

Objective: To investigate the impact of patient education interventions on preventing the recurrence of venous leg ulcers (VLU). Method: A systematic review was undertaken using the following databases: Cochrane Wounds Specialised Register; the Cochrane Central Register of Controlled Trials (CENTRAL; The Cochrane Library); Ovid; Ovid (In-process and Other Non-Indexed Citations); Ovid Embase and EBSCO CINAHL. Trial registries and reference lists of relevant publications for published and ongoing trials were also searched. There were no language or publication date restrictions. Randomised controlled trials (RCTs) and cluster RCTs of patient educational interventions for preventing VLU recurrence were included. Review authors working independently assessed trials for their appropriateness for inclusion and for their risk of bias, using pre-determined inclusion and quality criteria. Results: A total of four studies met the inclusion criteria (274 participants). Each trial explored different interventions as follows: the Lively legs programme; education delivered via a video compared with education delivered via a pamphlet; the Leg Ulcer Prevention Programme and the Lindsay Leg Club. Only one study reported the primary outcome of incidence of VLU recurrence. All studies reported at least one of the secondary outcomes: patient behaviours, patient knowledge and patient quality of life (QoL). It is uncertain whether patient education programmes make any difference to VLU recurrence at 18 months (risk ratio [RR]: 0.82; 95% confidence interval: [CI] 0.59 to 1.14) or to patient behaviours (walked at least 10 minutes/five days a week RR: 1.48; 95%CI: 0.99 to 2.21; walked at least 30 minutes/five days a week: RR 1.14; 95%CI: 0.66 to 1.98; performed leg exercises: RR: 1.47; 95%CI: 1.04 to 2.09); to knowledge scores (MD (mean difference) 5.12, 95% CI –1.54 to 11.78); or to QoL (MD: 0.85, 95% CI –0.13 to 1.83), as the certainty of evidence has been assessed as very low. It is also uncertain whether different types of education delivery make any difference to knowledge scores (MD: 12.40; 95%CI: –5.68 to 30.48). Overall, GRADE assessments of the evidence resulted predominantly in judgments of very low certainty. The studies were at high risk of bias and outcome measures were imprecise due to wide CIs and small sample sizes. Conclusion: It is uncertain whether education makes any difference to the prevention of VLU recurrence. Therefore, further well-designed trials, addressing important clinical, QoL and economic outcomes are justified, based on the incidence of the problem and the high costs associated with VLU management.


2020 ◽  
Vol 34 (10) ◽  
pp. 1340-1350
Author(s):  
Ashley Ridley ◽  
Sandra Frache

Background: Childhood bereavement after sibling death is common, but often unrecognized. The psychosomatic and socioeconomic outcomes of bereaved children can be compromised if appropriate care is unavailable during the formative years leading into adulthood. Aim: This review aims to describe the methods, structures and procedures of bereavement care for children and adolescents after the loss of a sibling, and the impact on the families benefiting from these interventions. Design: A systematic review without restriction on study design was conducted. Data sources: Four databases (MEDLINE, PsycINFO, EMBASE, Cochrane Library) were searched for articles published from 2000 to 2019. The search was conducted according to PRISMA guidelines and the protocol is registered on PROSPERO under number CRD42019124675. Articles were assessed against eligibility criteria by both authors, and quality was appraised using CASP checklists and NHMRC grading guidelines. Results: Twenty-three studies met inclusion criteria. Bereavement care was most often accessed by children ages 6–18 who lost a sibling to cancer 6–12 months prior. The interventions were typically group sessions or weekend camps, run predominantly by unpaid staff from a variety of backgrounds. Some staff members received priori specific training. Grief education is taught through mediated discussion and bereavement-centered activities balanced with playful and relaxed activities. Several services have effectuated evaluations of their interventions, and preliminary results show a positive effect for families. Conclusion: Existing literature most likely gives an incomplete picture of appropriate childhood bereavement care, and many interventions possibly remain unpublished or published in other non-scientific sources. An effective response to childhood grief would involve collaboration between medical resources and community services, reinforced through the development of outreach and training programs.


2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Jiani Zhou ◽  
Tingjun Liu ◽  
Lihong Guo

Abstract Background XP-Endo Finisher (XPF) and passive ultrasonic irrigation (PUI) are commonly used in intracanal medicament removal. The effectiveness of these two techniques needs to be compared, and evidence-based research should be conducted. Methods A comprehensive literature search was conducted in PubMed, Web of Science, Embase, Cochrane Library, and Google Scholar up to December 20th, 2020. The outcomes of the included trials were pooled into the Cochrane Collaboration’s Review Manager 5.3 software. Cochrane’s risk-of-bias tool 2.0 was applied to assess the risk of bias. Results Nine articles were included in this systematic review and processed for data extraction, and eight studies were identified for meta-analysis. In general, the use of PUI showed better medicament removal effectiveness than XPF (odds ratio [OR]: 3.09; 95% confidence interval [CI], 1.96–4.86; P < 0.001). PUI was also significantly more efficient than XPF in the apical third (OR: 3.42; 95% CI, 1.32–8.84; P = 0.01). For trials using sodium hypochlorite (NaOCl) alone, PUI was also significantly more effective than XPF on intracanal medicaments removal (OR: 5.23; 95% CI, 2.79–9.82; P < 0.001). However, there was no significant difference between PUI and XPF when NaOCl and ethylenediaminetetraacetic acid (EDTA) were used in combination (OR: 1.51; 95% CI, 0.74–3.09; P = 0.26). In addition, for studies whose intracanal medicament periods were two weeks, the effectiveness of PUI was statistically better than the XPF (OR: 7.73; 95% CI, 3.71–16.07; P < 0.001). Nevertheless, for trials whose intracanal medicament time was one week or over two weeks, no differences between the XPF and PUI were found (OR: 1.54; 95% CI, 0.74–3.22; P = 0.25) (OR: 1.42; 95% CI, 0.44–4.61; P = 0.56). Conclusions The meta-analysis is the first study to quantitatively compare the effectiveness of XPF and PUI techniques on intracanal medicaments removal. With rigorous eligibility criteria, the study only included high-quality randomised controlled trials. The study indicated that PUI might be superior over XPF techniques for removing intracanal medicaments from artificial standardized grooves and cavities in the root canal system. The anatomical areas, irrigation protocol, and intracanal medicaments time may influence the cleaning efficacy.


2017 ◽  
Vol 70 (4) ◽  
pp. 282-294 ◽  
Author(s):  
Nereo Segnan ◽  
Silvia Minozzi ◽  
Antonio Ponti ◽  
Cristina Bellisario ◽  
Sara Balduzzi ◽  
...  

BackgroundFalse-positive histological diagnoses have the same consequences of overdiagnosis in terms of unnecessary treatment. The aim of this systematic review is to assess their frequency at needle core biopsy (CB) and/or surgical excision of the breast.MethodsPubMed, Embase, Cochrane Library were systematically searched up to 30 October 2015. Eligibility criteria: cross-sectional studies assessing diagnostic accuracy of CB compared with surgical excision; studies assessing reproducibility of pathologists reading the same slides. Outcomes: false-positive rates; Misclassification of Benign as Malignant (MBM) histological diagnosis; K statistic. Independent reviewers extracted data and assessed quality using an adapted QUADAS-2 tool.ResultsSixteen studies assessed CB false-positive rates. In 10 studies (41 989 screen-detected lesions), the range of false-positive rates was 0%–7.1%. Twenty-seven studies assessed pathologists' reproducibility. Studies with consecutive, random or stratified samples of all the specimens: at CB the MBM range was 0.25%–2.4% (K values 0.83–0.98); at surgical excision, it was 0.67%–1.2% (K values 0.86–0.94). Studies with enriched samples: the MBM range was 1.4%–6.2% (K values 0.57–0.86). Studies of cases selected for second opinion: the MBM range was 0.29%–12.2% (K values 0.48 and 0.50).ConclusionsHigh heterogeneity of the included studies precluded formal pooling estimates. When considering studies of higher sample size or methodological quality, false-positive rates and MBM are around 1%. The impact of false-positive histological diagnoses of breast cancer on unnecessary treatment, as well as that of overdiagnosis, is not negligible and is of importance in clinical practice.


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