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Emergency Medicine Journal : EMJ Jan 2003Cohort, cross sectional, and case-control studies are collectively referred to as observational studies. Often these studies are the only practicable method of studying... (Review)
Review
Cohort, cross sectional, and case-control studies are collectively referred to as observational studies. Often these studies are the only practicable method of studying various problems, for example, studies of aetiology, instances where a randomised controlled trial might be unethical, or if the condition to be studied is rare. Cohort studies are used to study incidence, causes, and prognosis. Because they measure events in chronological order they can be used to distinguish between cause and effect. Cross sectional studies are used to determine prevalence. They are relatively quick and easy but do not permit distinction between cause and effect. Case controlled studies compare groups retrospectively. They seek to identify possible predictors of outcome and are useful for studying rare diseases or outcomes. They are often used to generate hypotheses that can then be studied via prospective cohort or other studies.
Topics: Case-Control Studies; Cohort Studies; Cross-Sectional Studies; Data Collection; Databases as Topic; Selection Bias
PubMed: 12533370
DOI: 10.1136/emj.20.1.54 -
Minerva Anestesiologica Aug 2019The underlying clinical condition and the Intensive Care Unit (ICU) environment make critical illness a stressful event. Although the usual management consists of... (Meta-Analysis)
Meta-Analysis
INTRODUCTION
The underlying clinical condition and the Intensive Care Unit (ICU) environment make critical illness a stressful event. Although the usual management consists of sedation, non-pharmacological interventions such as music therapy have been suggested for their drug-sparing effect. Aim of the present review is to assess the current evidence on the effectiveness of music therapy in reducing stress and anxiety in critically ill, adult patients.
EVIDENCE ACQUISITION
A systematic review of publications was undertaken using MEDLINE, CINAHL, Cochrane Library, Scopus, Web of Science, Indice Italiano di Letteratura di Scienze Infermieristiche. We included studies of critically ill patients that assessed any effect of music therapy on stress and anxiety, which were variably assessed according to each study's definition.
EVIDENCE SYNTHESIS
Eleven studies were included (10 RCTs and one quasi-experimental design), for a total of 959 patients (range 17-373). The overall quality of the studies was satisfactory; several potential sources for bias were identified. Music therapy was generally provided as a single, 30'-intervention, ranging from 15 to 60'. Only in two studies was the intervention repeated more than once daily. The control groups were standard care, relaxation, headphones with no music or noise-cancelling headphones. Music therapy determined a significant reduction in the levels of anxiety and stress, as assessed by self-reported scales and physiologic parameters. Pooled analysis was not performed due to the heterogeneity of the interventions.
CONCLUSIONS
Despite significant heterogeneity in trial designs, timing and features of the intervention, music therapy is consistently associated with a reduction in anxiety and stress of critically ill patients.
Topics: Anxiety; Critical Illness; Humans; Music Therapy; Randomized Controlled Trials as Topic; Stress, Psychological
PubMed: 30947484
DOI: 10.23736/S0375-9393.19.13526-2 -
Journal of the Academy of Nutrition and... Dec 2017A dietetic consultation is a structured process aimed at supporting individual patients to modify their dietary behaviors to improve health outcomes. The body of... (Review)
Review
BACKGROUND
A dietetic consultation is a structured process aimed at supporting individual patients to modify their dietary behaviors to improve health outcomes. The body of evidence on the effectiveness of nutrition care provided by dietitians in primary health care settings has not previously been synthesized. This information is important to inform the role of dietitians in primary health care service delivery.
OBJECTIVE
The aim of this systematic review was to evaluate the evidence of the effectiveness of individual consultations provided exclusively by dietitians in primary care to support adult patients to modify dietary intake and improve health outcomes.
STUDY DESIGN
ProQuest Family Health, Scopus, PubMed Central, Medline, the Cumulative Index to Nursing and Allied Health Literature, and Cochrane databases were searched for English language systematic reviews or randomized controlled trials published before October 2016. The key terms used identified the provision of nutrition care exclusively by a dietitian in a primary health care setting aimed at supporting adult patients to modify dietary behaviors and/or improve biomarkers of health. Interventions delivered to patients aged younger than 18 years, in hospital, via telephone only, in a group or lecture setting, or by a multidisciplinary team were excluded. The methodologic quality of each study was appraised using the Cochrane Risk of Bias tool and the body of evidence was assessed using the Academy of Nutrition and Dietetics Evidence Analysis Manual.
MAIN OUTCOME MEASURES
Outcomes included the effectiveness of dietetic interventions in terms of anthropometry, clinical indicators, and dietary intake. A statistically significant between-group difference was used to indicate intervention effectiveness (P<0.05).
RESULTS
Twenty-six randomized controlled studies met eligibility criteria, representing 5,500 adults receiving dietetic consultations in a primary care setting. Eighteen of 26 included studies showed statistically significant differences in dietary, anthropometric, or clinical indicators between intervention and comparator groups. When focusing specifically on each study's stated aim, significant improvements favoring the intervention compared with control were found for the following management areas: glycemic control (four out of four studies), dietary change (four out of four studies), anthropometry (four out of seven studies), cholesterol (two out of eight studies), triglycerides (one out of five), and blood pressure (zero out of three) studies.
CONCLUSIONS
Dietetic consultations for adults in primary care settings appear to be effective for improvement in diet quality, diabetes outcomes (including blood glucose and glycated haemoglobin values), and weight loss outcomes (eg, changes in weight and waist circumference) and to limit gestational weight gain (Grade II: Fair evidence). Research evaluated in this review does not provide consistent support for the effectiveness of direct dietetic counseling alone in achieving outcomes relating to plasma lipid levels and blood pressure (Grade III: Limited evidence). Therefore, to more effectively control these cardiovascular disease risk factors, future research might explore novel nutrition counseling approaches as well as dietitians functioning as part of multidisciplinary teams.
Topics: Blood Glucose; Cardiovascular Diseases; Diabetes Mellitus; Diet; Dietetics; Glycated Hemoglobin; Health Promotion; Humans; Nutrition Assessment; Nutritional Status; Nutritionists; Obesity; Primary Health Care; Randomized Controlled Trials as Topic; Referral and Consultation
PubMed: 28826840
DOI: 10.1016/j.jand.2017.06.364 -
Ophthalmic & Physiological Optics : the... May 2021Both emmetropic and myopic eyes elongate throughout childhood. The goals of this study were to compare axial elongation among untreated progressing myopes, progressing... (Comparative Study)
Comparative Study Randomized Controlled Trial
PURPOSE
Both emmetropic and myopic eyes elongate throughout childhood. The goals of this study were to compare axial elongation among untreated progressing myopes, progressing myopes treated with a myopia control contact lens and emmetropes, in order to place axial elongation in the context of normal eye growth in emmetropic children, and to consider whether normal physiological eye growth places limits on what might be achieved with myopia control.
METHODS
Axial elongation data were taken from the 3-year randomised clinical trial of a myopia control dual-focus (MiSight® 1 day) contact lens. These were compared with data for myopic and emmetropic children in two large cohort studies: the Orinda Longitudinal Study of Myopia (OLSM) and the Singapore Cohort Study of the Risk Factors for Myopia (SCORM). Each study's published equations were used to calculate annual axial elongation. Four virtual cohorts-myopic and emmetropic for each model-were created, each with the same age distribution as the MiSight clinical trial subjects and the predicted cumulative elongation calculated at years 1, 2 and 3 for myopes and emmetropes using both the OLSM and SCORM models.
RESULTS
The untreated control myopes in the MiSight clinical trial showed mean axial elongation over 3 years (0.62 mm) similar to the virtual cohorts based on the OLSM (0.70 mm) and SCORM (0.65 mm) models. The predicted 3-year axial elongation for the virtual cohorts of emmetropes was 0.24 mm for both the OLSM and SCORM models-similar to the mean 3-year elongation in MiSight-treated myopes (0.30 mm).
CONCLUSIONS
The 3-year elongation in MiSight-treated myopes approached that of virtual cohorts of emmetropes with the same age distribution. It is hypothesised that myopic axial elongation is superimposed on an underlying physiological axial elongation observed in emmetropic eyes, which reflects increases in body stature. We speculate that optically based myopia control treatments may minimise the myopic axial elongation but retain the underlying physiological elongation observed in emmetropic eyes.
Topics: Adolescent; Axial Length, Eye; Child; Disease Management; Female; Follow-Up Studies; Humans; Male; Myopia; Time Factors
PubMed: 33951213
DOI: 10.1111/opo.12812 -
Complementary Therapies in Medicine Dec 2022Findings on the usefulness of massage therapy (MT) in postoperative pain management are often inconsistent among studies. (Meta-Analysis)
Meta-Analysis Review
BACKGROUND
Findings on the usefulness of massage therapy (MT) in postoperative pain management are often inconsistent among studies.
OBJECTIVES
This study's aim is to conduct a meta-analysis of randomized controlled trials (RCT) to clarify the effects of massage therapy in the treatment of postoperative pain.
METHODS
Three databases (PubMed, Embase, and Cochrane Central Register of Controlled Trials) were searched for RCTs published from database inception through January 26, 2021. The primary outcome was pain relief. The quality of RCTs was appraised with the Cochrane Collaboration risk of bias tool. The random-effect model was used to calculate the effect sizes and standardized mean difference (SMD) with 95 % confidential intervals (CIs) as a summary effect. The heterogeneity test was conducted through I. Subgroup and sensitivity analyses were used to explore the source of heterogeneity. Possible publication bias was assessed using visual inspection of funnel plot asymmetry.
RESULTS
The analysis included 33 RCTs and showed that MT is effective in reducing postoperative pain (SMD, -1.32; 95 % CI, -2.01 to -0.63; p = 0.0002; I = 98.67 %). A similar significant effect was found for both short (immediate assessment) and long terms (assessment performed 4-6 weeks after the MT). Remarkably, we found neither the duration per session nor the dose had an impact on the effect of MT and there seemed to be no difference in the effects of different MT types. In addition, MT seemed to be more effective for adults. Furthermore, MT had better analgesic effects on cesarean section and heart surgery than orthopedic surgery.
LIMITATIONS
Publication bias is possible due to the inclusion of studies in English only. Additionally, the included studies were extremely heterogeneous. Double-blind research on MT is difficult to implement, and none of the included studies is double-blind. There was some heterogeneity and publication bias in the included studies. In addition, there is no uniform evaluation standard for the operation level of massage practitioners, which may lead to research implementation bias.
CONCLUSIONS
MT is effective in reducing postoperative pain in both short and long terms.
Topics: Adult; Pregnancy; Female; Humans; Massage; Pain Management; Pain, Postoperative; Mind-Body Therapies; Randomized Controlled Trials as Topic
PubMed: 36309174
DOI: 10.1016/j.ctim.2022.102892 -
Cureus Oct 2022Adolescent idiopathic scoliosis(AIS) is an abnormal curvature of the spine that appears in late childhood or adolescence. The aim of this systematic review was to... (Review)
Review
Adolescent idiopathic scoliosis(AIS) is an abnormal curvature of the spine that appears in late childhood or adolescence. The aim of this systematic review was to present and synthesize the most relevant therapeutic advice and evidence on the efficacy of physiotherapy exercises for preventing the growth of spinal curvature caused by adolescent idiopathic scoliosis. "Adolescent idiopathic scoliosis," "exercise," "Cobb angle," and "physiotherapy" were the sole keywords used for the published research. Using these keywords and a combination of them, electronic resources such as PubMed, Cochrane Central Register of Controlled Trials, Physiotherapy Evidence Database (PEDro), Elton B. Stephens Company (EBSCO) host, and ScienceDirect (Elsevier) were searched. The search was restricted to studies that were conducted in English between 2010 and 15 January 2022 that were controlled, randomized, and non-randomized. Studies were selected based on their titles and abstracts, with the exception of any that did not pertain to the study's goals. The Cobb angle was the important outcome measure. For each intervention, the Cobb angle's mean change score, the difference between the final and baseline scores, was determined. Nine studies were evaluated to be of outstanding quality out of a total of 20 studies that were reviewed for eligibility. With an exercise regimen of at least seven weeks, controls on lowering the Cobb angle in patients with AIS would provide encouraging outcomes. It also shows that bracing can strengthen the Cobb angle compared to exercise in the community. However, long-term orthotic activity ultimately results in trunk resistance and muscle loss in the center of the back. The combination of techniques and treatment methods seems to have better results in treating scoliosis, particularly using exercises involving the Schroth and scientific exercise approach to scoliosis (SEAS).
PubMed: 36381707
DOI: 10.7759/cureus.30314 -
Bioengineering (Basel, Switzerland) Apr 2023The demineralization process conditions the structure of the enamel and begins with a superficial decalcification procedure that makes the enamel surface porous and... (Review)
Review
The demineralization process conditions the structure of the enamel and begins with a superficial decalcification procedure that makes the enamel surface porous and gives it a chalky appearance. White spot lesions (WSLs) are the first clinical sign that can be appreciated before caries evolves into cavitated lesions. The years of research have led to the testing of several remineralization techniques. This study's objective is to investigate and assess the various methods for remineralizing enamel. The dental enamel remineralization techniques have been evaluated. A literature search on PubMed, Scopus, and Web of Science was performed. After screening, identification, and eligibility processes 17 papers were selected for the qualitative analysis. This systematic review identified several materials that, whether used singly or in combination, can be effective in the process of remineralizing enamel. All methods have a potential for remineralization when they come into contact with tooth enamel surfaces that have early-stage caries (white spot lesions). From the studies conducted in the test, all of the substances used to which fluoride has been added contribute to remineralization. It is believed that by developing and researching new remineralization techniques, this process might develop even more successfully.
PubMed: 37106659
DOI: 10.3390/bioengineering10040472 -
Pain Physician Sep 2017The management of chronic pain is a complex challenge worldwide. Cannabis-based medicines (CBMs) have proven to be efficient in reducing chronic pain, although the topic... (Meta-Analysis)
Meta-Analysis Review
BACKGROUND
The management of chronic pain is a complex challenge worldwide. Cannabis-based medicines (CBMs) have proven to be efficient in reducing chronic pain, although the topic remains highly controversial in this field.
OBJECTIVES
This study's aim is to conduct a conclusive review and meta-analysis, which incorporates all randomized controlled trials (RCTs) in order to update clinicians' and researchers' knowledge regarding the efficacy and adverse events (AEs) of CBMs for chronic and postoperative pain treatment.
STUDY DESIGN
A systematic review and meta-analysis.
METHODS
An electronic search was conducted using Medline/Pubmed and Google Scholar with the use of Medical Subject Heading (MeSH) terms on all literature published up to July 2015. A follow-up manual search was conducted and included a complete cross-check of the relevant studies. The included studies were RCTs which compared the analgesic effects of CBMs to placebo. Hedges's g scores were calculated for each of the studies. A study quality assessment was performed utilizing the Jadad scale. A meta-analysis was performed utilizing random-effects models and heterogeneity between studies was statistically computed using I² statistic and tau² test.
RESULTS
The results of 43 RCTs (a total of 2,437 patients) were included in this review, of which 24 RCTs (a total of 1,334 patients) were eligible for meta-analysis. This analysis showed limited evidence showing more pain reduction in chronic pain -0.61 (-0.78 to -0.43, P < 0.0001), especially by inhalation -0.93 (-1.51 to -0.35, P = 0.001) compared to placebo. Moreover, even though this review consisted of some RCTs that showed a clinically significant improvement with a decrease of pain scores of 2 points or more, 30% or 50% or more, the majority of the studies did not show an effect. Consequently, although the primary analysis showed that the results were favorable to CBMs over placebo, the clinical significance of these findings is uncertain. The most prominent AEs were related to the central nervous and the gastrointestinal (GI) systems.
LIMITATIONS
Publication limitation could have been present due to the inclusion of English-only published studies. Additionally, the included studies were extremely heterogeneous. Only 7 studies reported on the patients' history of prior consumption of CBMs. Furthermore, since cannabinoids are surrounded by considerable controversy in the media and society, cannabinoids have marked effects, so that inadequate blinding of the placebo could constitute an important source of limitation in these types of studies.
CONCLUSIONS
The current systematic review suggests that CBMs might be effective for chronic pain treatment, based on limited evidence, primarily for neuropathic pain (NP) patients. Additionally, GI AEs occurred more frequently when CBMs were administered via oral/oromucosal routes than by inhalation.Key words: Cannabis, CBMs, chronic pain, postoperative pain, review, meta-analysis.
Topics: Cannabidiol; Cannabis; Chronic Pain; Dronabinol; Drug Combinations; Humans; Medical Marijuana; Neuralgia; Pain Management; Pain, Postoperative; Randomized Controlled Trials as Topic; Treatment Outcome
PubMed: 28934780
DOI: No ID Found -
Hand (New York, N.Y.) Mar 2020De Quervain tenosynovitis is commonly seen in patients who perform repetitive wrist ulnar deviation with thumb abduction and extension. Previous studies comparing... (Randomized Controlled Trial)
Randomized Controlled Trial
De Quervain tenosynovitis is commonly seen in patients who perform repetitive wrist ulnar deviation with thumb abduction and extension. Previous studies comparing nonsurgical options have contributed to a lack of consensus about ideal management. This study's purpose was to analyze results in prospectively randomized patients treated with either corticosteroid injection (CSI) alone versus CSI with immobilization. Radial sided wrist pain, first dorsal compartment tenderness, and positive Finkelstein test were used to define De Quervain. Pain score of 4 or higher on a visual analog scale (VAS) was utilized for inclusion. Following exclusion criteria, patients underwent randomization into groups: (1) CSI alone; or (2) CSI with 3 weeks of immobilization. We followed at 3 weeks and 6 months for further evaluation, where resolution of symptoms and improvements in VAS and Disabilities of the Arm, Shoulder, and Hand (DASH) scores were assessed to evaluate treatment success. Nine patients with CSI alone and 11 patients with CSI and immobilization were followed. At 6 months in both groups, patients experienced significant improvement in VAS and DASH scores, while 88% of patients with CSI alone and 73% of patients with CSI and immobilization experienced complete resolution of at least 2 out of 3 of their pretreatment symptoms. Between groups, outcomes were comparable except for resolution of radial-sided wrist pain, which was superior in patients with CSI alone (100% vs 64%). Immobilization following injection increases costs, may hinder activities of daily living, and did not contribute to improved patient outcomes in this study. Further prospective studies are warranted.
Topics: Activities of Daily Living; Humans; Pain Measurement; Prospective Studies; Tenosynovitis; Wrist Joint
PubMed: 30060681
DOI: 10.1177/1558944718791187