Systematic review of reviews of risk factors for intracranial aneurysms

Systematic reviews of systematic reviews identify good quality reviews of earlier studies of medical conditions. This article describes a systematic review of systematic reviews performed to investigate factors that might influence the risk of rupture of an intracranial aneurysm. It exemplifies the technique of this type of research and reports the finding of a specific study. The annual incidence of subarachnoid haemorrhage resulting from the rupture of intracranial aneurysms is estimated to be nine per 100,000. A large proportion of people who have this bleed, will die or remain dependent on the care of others for some time. Reliable knowledge about the risks of subarachnoid haemorrhage in different populations will help in planning, screening and prevention strategies and in predicting the prognosis of individual patients. If the necessary data were available in the identified reviews, an estimate for the numerical relationship between a particular characteristic and the risk of subarachnoid haemorrhage was included in this report. The identification of eligible systematic reviews relied mainly on the two major bibliographic databases of the biomedical literature: PubMed and EMBASE. These were searched in 2006, using specially designed search strategies. Approximately 2,000 records were retrieved and each of these was checked carefully against the eligibility criteria for this systematic review. These criteria required that the report be a systematic review of studies assessing the risk of subarachnoid haemorrhage in patients known to have an unruptured intracranial aneurysm or of studies that had investigated the characteristics of people who experienced a subarachnoid haemorrhage without previously being known to have an unruptured aneurysm. Reports which included more than one systematic review were eligible and each of these reviews was potentially eligible. The quality of each systematic review was assessed. In this review, 16 separate reports were identified, including a total of 46 eligible systematic reviews. These brought together research studies for 24 different risk factors. This has shown that the following factors appear to be associated with a higher risk of subarachnoid haemorrhage: being a woman, older age, posterior circulation aneurysms, larger aneurysms, previous symptoms, "non-white" ethnicity, hypertension, low body mass index, smoking and alcohol consumption of more than 150 g per week. The following factors appear to be associated with a lower risk of subarachnoid haemorrhage: high cholesterol, diabetes and use of hormone replacement therapy.     

A meta-analysis of the relationship between subjective sleep and depressive symptoms in adolescence

BackgroundAdolescence is a risk period for the development of mental illness, as well as a time for pronounced change in sleep behaviour. While prior studies, including several meta-analyses show a relationship between sleep and depressive symptoms, there were many inconsistences found in the literature.ObjectiveTo investigate the relationship between subjective sleep and depressive symptoms.MethodsFollowing PRISMA guidelines, we conducted a literature search that yielded forty-nine recent studies (2014–2020) with adolescent samples aged 9 to 25-year-olds, and more than double the sample size of previous meta-analyses (N = 318,256).ResultsIn a series of meta-analyses, we show that while several common categories of subjective sleep are associated with depressive symptoms in adolescents, the strength of this relationship varies. Measures of sleep perception: poor sleep quality (r = 0.41), insomnia (r = 0.37), sleep disturbances (r = 0.36), wake after sleep onset (r = 0.31), and daytime sleepiness (r = 0.30) correlated more strongly with depressive symptoms, than measures of sleep behaviour: sleep latency (r = 0.22), and sleep duration (r = −0.19).ConclusionsThese findings suggest that in studies of depressive symptoms it may be important to assess an adolescent's perception about their sleep, in addition to their sleep/wake behaviours.     

The impact of childhood obstructive sleep apnea on speech and oral language development: a systematic review

PurposeThe purpose of this systematic review was to review and synthesize the current evidence on speech and language outcomes of children with Obstructive Sleep Apnea (OSA), or more broadly sleep-disordered breathing.MethodA comprehensive literature search was conducted across 5 databases. Studies were selected based on the following criteria: 1) peer-reviewed research published between 2000 and 2020, 2) available in English or accessible non-English data, 3) children aged 2–13 years diagnosed with Sleep Disordered Breathing (SDB) or OSA, and 4) speech and language outcomes examined within research.ResultsStudies were appraised using PEDro-P and the overall certainty of evidence using Grading of Recommendations Assessment, Development and Evaluation (GRADE). Six studies met the current review selection criteria: one paper examined speech outcomes and the remaining five examined receptive and expressive language outcomes. The overall quality of the body of evidence was rated as very low, with methodological weaknesses present in study designs and sample sizes.ConclusionSpeech and language difficulties are common in children with OSA/SDB, in addition to neurocognitive and/or neurobehavioral issues. Further investigation of specific speech and language skills, which are compromised in this population, is needed to guide clinical practice and decision making, with particular involvement from speech-language pathologists.     

Experiences of key stakeholders with the implementation of medication reviews in community pharmacies: A systematic review using the Consolidated Framework for Implementation Research (CFIR)

BackgroundThough medication reviews have shown positive patient outcomes, they are still not widely implemented in community pharmacies. Published reviews on their implementation often include several other pharmacy services, making them non-specific. Using the Consolidated Framework for Implementation Research (CFIR) to focus solely on the experiences of different stakeholders with the implementation of medication reviews will help to better understand relevant facilitators and barriers.ObjectivesTo critically appraise, synthesise and present the available evidence on experiences of key stakeholders with the implementation of medication reviews and to identify barriers and facilitators to its implementation in community pharmacies.MethodsA systematic literature search was conducted in four databases for studies published in English, Spanish or German. Key search terms included: implementation, pharmac*, medication review, facilitator, barrier. Study selection, quality assessment and data extraction were performed by two independent reviewers. Findings were mapped directly against the constructs of the CFIR.ResultsOut of 924 retrieved records 24 articles from 9 countries met the inclusion criteria. Key facilitators identified included pharmacists' openness to practice change and a high degree of patient satisfaction post medication review. Attracting patients to the service was stated as challenging due to an unawareness of the scope and potential benefit of a medication review. The dominant barrier was inadequate remuneration, as it impacted all additional resourcing and ultimately the viability of the service. Further barriers included difficult professional relationships with doctors and little mandate from health authorities. Most reports were from the employed pharmacists’ perspective and concerned the inner setting, other perspectives were under-reported.ConclusionsResults of this systematic review illustrate different stakeholders' experiences and add to the understanding of challenges in the implementation process. Nevertheless, findings also highlight how scarce reporting of external stakeholders’ views is and that filling this gap can unveil hidden barriers and facilitators.RegistrationPROSPERO register (CRD 42019122836)     

The effect of viscous soluble fiber on blood pressure: A systematic review and meta-analysis of randomized controlled trials

Aims

Dietary fiber intake, especially viscous soluble fiber, has been established as a means to reduce cardiometabolic risk factors. Whether this is true for blood pressure remains controversial. A systematic review and meta-analysis of randomized controlled trials (RCTs) was conducted to investigate the effects of viscous soluble fiber supplementation on blood pressure and quantify the effect of individual fibers.

Measurement of health literacy in patients with cardiovascular diseases: A systematic review

BackgroundWhile many instruments have been developed, validated, and used to assess health literacy skills, their use and appropriateness among patients with cardiovascular diseases (CVDs) are not widely studied.ObjectiveTo identify, appraise, and synthesize available health literacy assessment instruments used in patients with CVDs.MethodsElectronic databases were searched for studies that used validated measures to assess health literacy in patients with CVDs. Included studies were assessed for risk of bias and the identified instruments were evaluated based on their psychometric properties. Data were synthesized using a narrative approach.ResultsForty-three studies were included in the review, of which 20 were cross-sectional studies and 12 were randomized controlled trials. Eleven health literacy assessment instruments were identified, of which only one was disease-specific. The Abbreviated version of the Test of Functional Health Literacy in Adults (S-TOFHLA) (n = 19) and the Rapid Estimate of Adult Literacy in Medicine (REALM) (n = 13) were found to be the most commonly used instruments to assess health literacy in CVDs.ConclusionsThe S-TOFHLA and the REALM are the most widely used instruments to evaluate health literacy in CVD population. More CVD-specific health literacy screening instruments are warranted. Assessment of health literacy should be a standard of care in patients with CVDs and effective interventions should be developed to improve the impact of limited health literacy on health outcomes in this population.     

Patient-Initiated Second Opinions: Systematic Review of Characteristics and Impact on Diagnosis,Treatment, and Satisfaction

The impact of second opinions on diagnosis in radiology and pathology is well documented; however, the value of patient-initiated second opinions for diagnosis and treatment in general medical practice is unknown. We conducted a systematic review of patient-initiated second opinions to assess their impact on clinical outcomes and patient satisfaction and to determine characteristics and motivating factors of patients who seek a second opinion. We searched PubMed, EMBASE, Cochrane, and Academic OneFile databases using Medical Subject Headings (MeSH) indexes and keyword searches. Search terms included referral and consultation, patient-initiated, patient preference, patient participation, second opinion, second review, and diagnosis. Multiple reviewers screened abstracts and articles to determine eligibility and extract data. We assessed risk of bias using the Cochrane Risk of Bias Tool and rated study quality using Cochrane's GRADE (Grades of Recommendation, Assessment, Development and Evaluation) approach. We screened 1342 abstracts and reviewed full text of 41 articles, identifying 7 articles that reported clinical agreement data and 10 that discussed patient characteristics, motivation, and satisfaction. We found that a second opinion typically confirms the original diagnosis or treatment regimen but that 90% of patients with poorly defined conditions remain undiagnosed. However, 10% to 62% of second opinions yield a major change in the diagnosis, treatment, or prognosis. A larger fraction of patients receive different advice on treatment than on diagnosis. Factors motivating a second opinion include diagnosis or treatment confirmation, dissatisfaction with a consultation, desire for more information, persistent symptoms, or treatment complications. Patients generally believed that second opinions were valuable. Second opinions can result in diagnostic and treatment differences. The literature on patient-initiated second opinions is limited, and the accuracy of the second opinion through follow-up is generally unknown. Standardized methods and outcome measures are needed to determine the value of second opinions, and the potential of second opinions to reduce diagnostic errors merits more rigorous evaluation.     

帕金森病认知障碍的早期识别

认知功能障碍是帕金森病非运动症状的最常见表现之一,特定基因的突变与多态性、血浆及脑脊液中的某些生物标记物以及脑组织及功能改变的影像学表现均可能与帕金森病认知障碍的发生、发展相关.现从遗传学、血浆及脑脊液中的生物标记物以及影像学改变三方面对帕金森病认知障碍早期识别的研究现状及前景作一综述.     

Diagnostic capability of questionnaires and clinical examinations to assess sleep-disordered breathing in children: A systematic review and meta-analysis

BackgroundThe reference standard for the diagnosis of pediatric sleep-disorder breathing (SDB) is a full polysomnography (PSG) (an overnight sleep study). There are many obstacles to children being able to undergo a full PSG; therefore, the authors evaluated the diagnostic value of alternative diagnostic methods (clinical history and physical examination) for pediatric SDB.Types of Studies ReviewedThe authors selected articles in which the investigators' primary objective was to evaluate the diagnostic capability of physical evaluations and questionnaires compared with the current reference standard (that is, a full PSG) to diagnose SDB in children younger than 18 years. The authors searched several electronic databases without limitations.ResultsUsing a two-step selection process, the authors identified 24 articles and used them to conduct a qualitative analysis. They conducted a meta-analysis on 11 of these articles. Among these articles, only one involved a test that had diagnostic accuracy good enough to warrant its use as a screening method for pediatric SDB, but its diagnostic accuracy was not sufficient to be considered a true diagnostic tool (that is, a replacement for full PSG) for pediatric SDB.Practical ImplicationsThe involvement of dentists in the screening process for pediatric SDB can contribute significantly to children's health. The identified questionnaire could be considered an acceptable screening test to determine which children to refer to a sleep medicine specialist.     

慢性失眠症认知行为治疗研究进展

慢性失眠症的治疗方式主要包括药物治疗和认知行为治疗.药物治疗慢性失眠症起效时间短、见效快,但易增加成瘾性,产生不良反应.认知行为疗法（CBT）是应用最广泛的非药物治疗方法,现已用于慢性失眠症的治疗并取得显著的疗效.CBT在治疗慢性失眠症的同时避免了药物治疗的不良反应,并且长期治疗效果优于药物治疗.