Prevalence of asymptomatic or "silent" myocardial ischemia in diabetic patients: Protocol for a systematic review and meta-analysis

Bedside Magnetocardiography with a Scalar Sensor Array

Decades of research have shown that magnetocardiography (MCG) has the potential to improve cardiac care decisions. However, sensor and system limitations have prevented its widespread adoption in clinical practice. We report an MCG system built around an array of scalar, optically pumped magnetometers (OPMs) that effectively rejects ambient magnetic interference without magnetic shielding. We successfully used this system, in conjunction with custom hardware and noise rejection algorithms, to record magneto-cardiograms and functional magnetic field maps from 30 volunteers in a regular downtown office environment. This demonstrates the technical feasibility of deploying our device architecture at the point-of-care, a key step in making MCG usable in real-world settings.

Detecting and treating the protean manifestations of diabetic autonomic neuropathy

The manifestations of diabetic autonomic neuropathy (DAN) are protean and clinically involve multiple systems, including the cardiovascular system, the gastrointestinal system, the genitourinary system as well as the sweat glands (sudomotor dysfunction) and the gallbladder. In addition, cardiac autonomic neuropathy (CAN) is associated with a correctible inability to appreciate and correct hypoglycaemia. While not a clinical problem, pupillary involvement should be the clue and the catalyst to investigate for other manifestations of DAN. This review outlines a practical approach to detecting and investigating the manifestations of DAN. Of particular importance is early detection of cardiovascular involvement where prompt therapy through glycaemic control can decrease the severity of CAN and decelerate the frequency and severity of retinopathy and nephropathy in addition to decreasing cardiovascular events and mortality. CAN also plays a role in accelerating other diabetic complications such as acute ischaemic stroke, heart failure, medial artery calcinosis, foot ulcers, peripheral artery disease and Charcot joints. Many therapies of DAN are available, which should not only decrease morbidity and mortality from DAN, but also improve the patient's quality of life. However, the therapies available are largely symptomatic.

Biomarkers of stress in caregivers of children with special health care needs: A protocol for systematic review

BACKGROUND

Children with Special Health Care Needs (CSHCN) require greater attention from family caregivers as they present temporary or permanent physical, developmental, behavioral, or emotional issues. This demand for care generates overload and stress among family caregivers. So far, there is no study that gathers the available literature regarding the use of biomarkers to assess stress among caregivers of CSHCN. Hence, we aimed to synthetize and to assess the scientific evidence on biomarkers associated with stress in caregivers of CSHCN.

METHODS

This systematic review and meta-analysis protocol was elaborated following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses Protocols (PRISMA-P). The search strategy will be undertaken through 7 electronic bibliographic databases: Embase, MEDLINE/PubMed, Cochrane Library, Web of Science, CINAHL, Scopus, and PsycINFO. In addition, secondary searches in other sources, such as Clinical trials.gov-NIH, The British Library, Pro Quest Dissertations Database, Google Scholar, and medRXiv will be also carried out. The reference section of the included studies will be hand searched for additional relevant studies. There will be no restriction regarding the publication dates or languages for this systematic review. Moreover, in an independently manner, 2 investigators will select studies, perform data extraction, as well as perform a critical appraisal of the risk of bias and overall quality of the selected studies, based on their designs. The heterogeneity among the studies will be assessed using the I2 statistic test. According to the results of this test, we will verify whether a meta-analysis is feasible. If feasibility is confirmed, a random-effect model analysis will be carried out. For data analysis, the calculation of the pooled effect estimates will consider a 95% CI and alpha will be set in 0.05 using the SPSS version 23.0.

RESULTS

This systematic review and meta-analysis will provide better insights regarding the biomarkers associated with stress in caregivers of CSHCN. Hence, consistent data and robust evidence will be provided to help practitioners and decision-makers in this area.

CONCLUSIONS

To the best of our knowledge this study, will be the first to synthetize and critically evaluate the scientific evidence on biomarkers associated with stress in caregivers of CSHCN.

Cost-effectiveness of home care services versus hospital care for pediatric patients worldwide: A protocol for systematic review and meta-analysis

BACKGROUND

Despite the expansion of home care services (HCS) in several countries, there is still a need to systematically investigate the available evidence on the cost-effectiveness of this type of service compared to hospital care in the world, particularly for the pediatric population. Hence, we aimed to systematically synthesize and critically evaluate the evidence on the cost-effectiveness of HCS versus in-hospital services worldwide.

METHODS

A systematic review and meta-analysis protocol guided by Preferred Reporting Items for Systematic Reviews and Meta-Analyses Protocols. Ten databases will be searched: MEDLINE/PubMed, Cochrane Library, Excerpta Medica database, cummulative index to nursing and allied health literature (CINAHL), Web of Science, SCOPUS, Science Direct, PsycINFO, Latin American and Caribbean Health Sciences Literature and Chinese national knowledge infrastructure with no restrictions on publication date or languages. A checklist for assessing the quality of reporting of economic evaluation studies will be applied. To assess the methodological quality of evidence from observational research on comparative effectiveness, the Good Research for Comparative Effectiveness Checklist v5.0 will be used. The heterogeneity among the studies will be assessed using the I2 statistic test. According to the results of this test, we will verify whether a meta-analysis is feasible. If feasibility is confirmed, a random-effect model analysis will be carried out. For data analysis, the calculation of the pooled effect estimates will consider a 95% CI and alpha will be set in 0.05 using the R statistical software, v.4.0.4. In addition, we will rate the certainty of evidence based on Grading of Recommendations Assessment, Development and Evaluation. All methodological steps of this review will be performed independently and paired by 2 reviewers and conducted and managed in the EPPI-Reviewer Software™.

RESULTS

The results may have relevance for the basis of public health policies, regarding the forms of organization of HCS, especially in terms of complete economic evaluations through cost-effectiveness analysis in relation to hospital care.

CONCLUSION

To the best of our knowledge this will be the first systematic review and metanalysis to synthesize and critically evaluate the evidence on the cost-effectiveness of HCS versus in-hospital services worldwide. The review will adopt a rigorous approach, adhering to PRISMA Statement 2020, using a comprehensive and systematic search strategy in 10 databases, further the gray literature, pre-prints, with no time period or language restrictions.

Cancer symptom clusters in adult patients undergoing chemotherapy: A systematic review and meta-analysis protocol

BACKGROUND

In oncology, the prevalence of symptoms is preferentially analyzed in isolation instead of being considered in clusters. However, clinical practice shows that symptoms rarely occur separately but rather form clusters that share common underlying mechanisms in terms of intensity and severity, creating a synergistic effect among them, which can even help predict the development of future symptoms.

OBJECTIVE

To identify and gather evidence on the prevalence, composition, severity, and predictors of cancer symptom clusters in adult cancer patients undergoing chemotherapy.

METHODS

This systematic review and meta-analysis protocol was developed in compliance with PRISMA-P. Observational and experimental study designs will be included. MEDLINE/PubMed, Cochrane Library, Embase, CINAHL, PsycINFO, Web of Science, Scopus, LILACS, clinical trials.gov-NIH, the British Library, Google Scholar, and preprints [medRXiv] will be searched with no restrictions on idioms, dates, or settings. Two investigators will independently select the studies, perform data extraction, and critically appraise the risk of bias of the included studies. Heterogeneity among the studies will be assessed using the I2 statistic. If meta-analysis was feasible, a random-effect model analysis will be carried out. For data analysis, the pooled effect will be estimated considering 95% confidence interval and α = 5%. In addition, the certainty of evidence will be rated based on Cochrane methods in accordance with the Grading of Recommendations, Assessment, Development, and Evaluation (GRADE).

DISCUSSION

To the best of our knowledge, this systematic review and meta-analysis will be the first to identify and critically assess evidence regarding the prevalence, composition, severity, and predictors of cancer symptom clusters in adult cancer patients undergoing chemotherapy. We intend to provide health professionals with subsidies to reflect on a better understanding of symptom clusters in adult cancer patients, with the aim of contributing to the development of evidence-based therapeutic interventions and success in clinical practice.

PROSPERO REGISTRATION NUMBER

CRD42021248406.

High blood pressure among adolescents in Africa: A systematic review and meta-analysis protocol

Introduction

As high blood pressure (HBP) is often considered an adult disease in Africa, studies on and services for HBP focus on adults to the near-exclusion of adolescents. The dearth of information about the burden of HBP does not favour much attention being paid to it. We, therefore, prepared this protocol to estimate the prevalence and awareness of HBP in adolescents in Africa through a systematic review and meta-analysis.

Methods

We will search several major databases for published and unpublished articles on population-based studies on adolescents living in Africa, aged 10–19 years produced from the year 2000 to date. The included articles will be those that define HBP according to international guidelines using the blood pressure cut-offs of the 95^th percentile for age, sex and height or of 130/90 mmHg, depending on the age of the subjects. The study selection as well as the evaluation of the quality of the included articles will be done independently by two reviewers, in line with best practices. We will pool together the prevalence across studies using random effects analysis and assess heterogeneity using meta-regression analysis and sub-group analysis. Sensitivity analysis using a leave-one-out analysis and an evaluation of reporting bias will also be performed. Reporting of our findings will conform to the recommended reporting guidelines.

Conclusion

The findings from our comprehensive systematic review and meta-analysis will provide an up-to-date information on the prevalence of HBP and its awareness among adolescents in Africa and its sub-regions. They could be used to advocate for increased priority to life course approach to the prevention of cardiovascular diseases.

Systematic review registration

PROSPERO CRD42020197946.

School reopening and risks accelerating the COVID-19 pandemic: A systematic review and meta-analysis protocol

BACKGROUND

One of the most recent concerns of this pandemic regards the role of schools reopening in disease transmission, as well as the impact of keeping schools closed. While school reopening seems critical for the education and mental health of children, adolescents, and adults, so far the literature has not systematically reached a consensus whether to recommend the return to schools in a way that would be safe for students and staff.

OBJECTIVE

To synthesize and critically evaluate the scientific evidence on the potential risk of accelerating the Coronavirus Disease 2019 (COVID-19) pandemic among children, adolescents, young adults, and adults with school reopening.

METHODS

This systematic review and meta-analysis protocol was elaborated following the PRISMA-P. We will include all observational study designs, which report on the potential risk of accelerating the COVID-2019 pandemic with school reopening. Electronic databases included were MEDLINE/PubMed, Cochrane Library, EMBASE, Web of Science, SCOPUS and CNKI. Additional sources will be also retrieved, including Clinical trials.gov-NIH, The British Library, Pro Quest Dissertations Database, Public Health Gray Literature Sources and Health Evidence, Google Scholar, and pre-prints [medRXiv]. No restriction to language or date will be used as search strategy. In an independently manner, two investigators will select studies, perform data extraction, as well as perform a critical appraisal of the risk of bias and overall quality of the selected observational studies, based on their designs. The heterogeneity among the studies will be assessed using the I2 statistic test. According to the results of this test, we will verify whether a meta-analysis is feasible. If feasibility is confirmed, a random-effect model analysis will be carried out. For data analysis, the calculation of the pooled effect estimates will consider a 95% CI and alpha will be set in 0.05 using the R statistical software, v.4.0.4. In addition, we will rate the certainty of evidence based on Cochrane methods and in accordance with the Grading of Recommendations Assessment, Development and Evaluation (GRADE).

EXPECTED RESULTS

This systematic review and meta-analysis will provide better insights into safety in the return to school in the context of the COVID-2019 pandemic, at a time when vaccination advances unevenly in several countries around the world. Hence, consistent data and robust evidence will be provided to help decision-makers and stakeholders in the current pandemic scenario.

PROSPERO REGISTRATION NUMBER

CRD42021265283; https://clinicaltrials.gov.