Systematic Review Of Prospective Studies Research Articles

Changes in Energy Expenditure of Patients with Obesity Following Bariatric Surgery: a Systematic Review of Prospective Studies and Meta-analysis.

We herein summarize the available literature on the effects of bariatric surgery (BS) on energy expenditure in individuals with obesity. We conducted a systematic literature review, and 35 prospective studies met our inclusion criteria. The findings indicate that BS contributes to increased diet-induced thermogenesis (DIT) and decreased total energy expenditure (TEE) and resting energy expenditure (REE) in patients with obesity. The meta-analysis demonstrated a significant decrease in TEE and REE within 6months following BS. With the sustained decrease in REE, there was no further decrease in TEE between the 6- and 12-month follow-up. Increased DIT might explain the variance between the patterns of REE and TEE change. The postoperative decrease in REE/FFM and increase in REE/BW were observed. The changes in substrate utilization might be consistent with the change in the respiration quotient postoperatively.

Acupuncture for Cosmetic Use: a Systematic Review of Prospective Studies

Acupuncture for Cosmetic Use: a Systematic Review of Prospective Studies

Surgical resection of medulloblastoma: How much is sufficient and necessary? A systematic review of literature

AbstractBackgroundThe risk stratification after surgery for patients with medulloblastoma has been based on three variables, ie, age, metastasis, and residual tumor following surgery for a long time. Out of these, there is lack of consensus regarding the impact of extent of resection (EOR) on survival.AimIn this study, we aim to systematically review the impact of EOR on the prognosis and long‐term outcomes of medulloblastoma.Methods and resultsThe authors performed a systematic review of prospective studies published in PubMed that evaluated the role of EOR on long‐term outcomes in terms of overall survival (OS) and progression‐free survival (PFS). The data of the identified studies were systematically analyzed. Ten prospective studies fulfilling the eligibility criteria were identified. Five studies found no significant difference in either OS or PFS with EOR. On the other hand three studies found a clear association with higher OS and PFS with gross total resection (GTR). One study found PFS to be correlated with <1.5 cm2 residual but not with >90% resection. Another study noted that EOR is important for PFS but not for OS. There was significant heterogeneity in the assessment criteria and classification of EOR across the studies.ConclusionsThere is a need to update and standardize the criteria to classify EOR according to current understanding of the disease, including its molecular subtypes. Prospective studies evaluating the impact of EOR in relation with molecular subtyping will help in deciding the future management algorithms for medulloblastoma.

Acupuncture for cosmetic use: a systematic review of prospective studies

Acupuncture for cosmetic use: a systematic review of prospective studies

Mood Disorders and Gluten: It's Not All in Your Mind! A Systematic Review with Meta-Analysis.

Gluten elimination may represent an effective treatment strategy for mood disorders in individuals with gluten-related disorders. However, the directionality of the relationship remains unclear. We performed a systematic review of prospective studies for effects of gluten on mood symptoms in patients with or without gluten-related disorders. Six electronic databases (CINAHL, PsycINFO, Medline, Web of Science, Scopus and Cochrane Library) were searched, from inception to 8 August 2018, for prospective studies published in English. Meta-analyses with random-effects were performed. Three randomised-controlled trials and 10 longitudinal studies comprising 1139 participants fit the inclusion criteria. A gluten-free diet (GFD) significantly improved pooled depressive symptom scores in GFD-treated patients (Standardised Mean Difference (SMD) −0.37, 95% confidence interval (CI) −0.55 to −0.20; p < 0.0001), with no difference in mean scores between patients and healthy controls after one year (SMD 0.01, 95% CI −0.18 to 0.20, p = 0.94). There was a tendency towards worsening symptoms for non-coeliac gluten sensitive patients during a blinded gluten challenge vs. placebo (SMD 0.21, 95% CI −0.58 to 0.15; p = 0.25). Our review supports the association between mood disorders and gluten intake in susceptible individuals. The effects of a GFD on mood in subjects without gluten-related disorders should be considered in future research.

Serum uric acid and cancer mortality and incidence: a systematic review and meta-analysis

Elevated serum uric acid (SUA) is a marker of chronic inflammation and has been suggested to be associated with increased risk of cancer, but its antioxidant capacity would justify an anticancer effect. Previous meta-analyses did not include all available results. We conducted a systematic review of prospective studies on SUA level and risk of all cancers and specific cancers, a conducted a meta-analysis based on random-effects models for high versus low SUA level as well as for an increase in 1 mg/dl SUA. The relative risk of all cancers for high versus low SUA level was 1.11 (95% confidence interval: 0.94-1.27; 11 risk estimates); that for a mg/dl increase in SUA level was 1.03 (95% confidence interval: 0.99-1.07). Similar results were obtained for lung cancer (six risk estimates) and colon cancer (four risk estimates). Results for other cancers were sparse. Elevated SUA levels appear to be associated with a modest increase in overall cancer risk, although the combined risk estimate did not reach the formal level of statistical significance. Results for specific cancers were limited and mainly negative.

Questionnaire-based evaluation of sexual life after laparoscopic surgery for endometriosis: a systematic review of prospective studies.

Endometriosis is a benign disease that affects women of reproductive age. Laparoscopic excision of endometriotic implants is considered one of the most effective therapeutic options. The disease and its treatment can have a major impact on psychosexual well-being but this is often overlooked as most studies focus on pain instead of sexuality in a holistic approach. The aim of this study was to review the current literature regarding the effect of laparoscopic surgery for endometriosis on quality of sexual life (QoSL). Following the "Preferred Reporting Items for Systematic Reviews and Meta-Analyses" guidelines we conducted a systematic review that involved searching PubMed and Embase databases for prospective studies evaluating the effect of laparoscopic surgery for endometriosis on QoSL, using validated questionnaires. Of 357 papers, 17 were selected for full text evaluation. Twelve studies using seven different questionnaires fulfilled the inclusion criteria. All studies reported improvements in QoSL following laparoscopic surgery for endometriosis. A meta-analysis could not be performed due to substantial heterogeneity among the included studies arising from differences in questionnaires, follow-up duration, stages of endometriosis, use of hormonal treatment, and missing data. Laparoscopic excision of endometriosis can improve QoSL. However, there is a need for randomized controlled trials based on a new validated questionnaire regarding specifically QoSL in association with endometriosis. As sexual functioning is a complex phenomenon driven by multiple physical, psychological and social factors, QoSL should be holistically evaluated by a team of different healthcare providers, implementing treatment programs that are individualized to each woman.

T149. Do We Have Evidence for Predictive Biomarkers for Major Depressive Disorder? A Meta-Analysis and Systematic Review of Prospective Studies

T149. Do We Have Evidence for Predictive Biomarkers for Major Depressive Disorder? A Meta-Analysis and Systematic Review of Prospective Studies

Stroke and food groups: an overview of systematic reviews and meta-analyses.

Numerous systematic reviews of prospective studies on the association of stroke risk with the consumption of various food groups have been published. A review of the evidence across the existing systematic reviews and meta-analyses of prospective studies was conducted to provide an overview of the range and validity of the reported associations of food groups with stroke risk. The PubMed, EMBASE and Cochrane Library databases were searched for articles published up to September 2015 to identify systematic reviews of prospective studies. A total of eighteen studies published from 2008 to 2015 were eligible for analysis. Overall, thirteen specific foods were studied for an association with stroke outcome, including nuts, legumes, fruits and vegetables, refined grains, whole grains, dairy products, eggs, chocolate, red and/or processed meat, fish, tea, sugar-sweetened beverages and coffee. Whereas a high consumption of nuts, fruits, vegetables, dairy foods, fish and tea, and moderate consumption of coffee and chocolate demonstrated a protective effect, a high consumption of red and/or processed meat was associated with increased stroke risk. Refined grain, sugar-sweetened beverage, legume, egg and whole grain intake showed no effect on stroke outcome. The current overview provided a high level of evidence to support the beneficial effect of specific foods on stroke outcome. Clinicians and policy makers could inform clinical practice and policy based on this overview.

Physical, psychological and occupational consequences of job burnout: A systematic review of prospective studies

Burnout is a syndrome that results from chronic stress at work, with several consequences to workers’ well-being and health. This systematic review aimed to summarize the evidence of the physical, psychological and occupational consequences of job burnout in prospective studies. The PubMed, Science Direct, PsycInfo, SciELO, LILACS and Web of Science databases were searched without language or date restrictions. The Transparent Reporting of Systematic Reviews and Meta-Analyses guidelines were followed. Prospective studies that analyzed burnout as the exposure condition were included. Among the 993 articles initially identified, 61 fulfilled the inclusion criteria, and 36 were analyzed because they met three criteria that must be followed in prospective studies. Burnout was a significant predictor of the following physical consequences: hypercholesterolemia, type 2 diabetes, coronary heart disease, hospitalization due to cardiovascular disorder, musculoskeletal pain, changes in pain experiences, prolonged fatigue, headaches, gastrointestinal issues, respiratory problems, severe injuries and mortality below the age of 45 years. The psychological effects were insomnia, depressive symptoms, use of psychotropic and antidepressant medications, hospitalization for mental disorders and psychological ill-health symptoms. Job dissatisfaction, absenteeism, new disability pension, job demands, job resources and presenteeism were identified as professional outcomes. Conflicting findings were observed. In conclusion, several prospective and high-quality studies showed physical, psychological and occupational consequences of job burnout. The individual and social impacts of burnout highlight the need for preventive interventions and early identification of this health condition in the work environment.

The Bedside Index for Severity in Acute Pancreatitis: a systematic review of prospective studies to determine predictive performance

ABSTRACTBackground: predicting the development of severe disease has remained a major challenge in management of acute pancreatitis. The Bedside Index for Severity in Acute Pancreatitis (BISAP) is easy to calculate from the data available in the first 24 hours. Here, we performed a systematic review to determine the prognostic accuracy of the BISAP for severe acute pancreatitis (SAP).Methods: major databases of biomedical publications were searched during the first week of October 2015. Two independent reviewers searched records in two phases. Studies that reported prognostic accuracy of the BISAP for SAP from prospective cohorts were included. The pooled area under the receiver operating curve (AUC) was calculated.Results: Twelve studies were included for data-synthesis and methodology quality assessment was performed for 10. All the studies had enrolled consecutive patients, had a broad spectrum of the disease severity, reported explicit interpretation of the predictor, outcome of interest was well defined and had adequate follow-up. Blinded outcome assessment was reported in only one study. The pooled AUC was 0.85 (95% CI 0.80–0.90). There was significant heterogeneity, I2 86.6%. Studies using revised Atlanta classification in defining SAP had a pooled AUC of 0.92 (95% CI, 0.90–0.95), but heterogeneity persisted, I2 67%. Subgroup analysis based on rate of SAP (>20% vs <20%) did not eliminate the heterogeneity.Conclusion: the BISAP has very good predictive performance for SAP across different patient population and etiologies. Studies to evaluate the impact of incorporating the BISAP into clinical practice to improve outcome in acute pancreatitis are needed before adoption could be advocated with confidence.

MON-P226: Dietary Factors and non-Alcoholic Fatty Liver Disease Incidence: A Systematic Review of Prospective Studies

MON-P226: Dietary Factors and non-Alcoholic Fatty Liver Disease Incidence: A Systematic Review of Prospective Studies

Safety of primaquine given to people with G6PD deficiency: systematic review of prospective studies

BackgroundHaemolysis risk with single dose or short course primaquine was evaluated in glucose-6-phosphate dehydrogenase (G6PD) deficient people.MethodsMajor electronic databases (to August 2016) were searched for single or short course 8-aminoquinolines (8-AQ) in (1) randomized comparisons against placebo in G6PD deficient people; and (2) observational comparisons in G6PD deficient compared to replete people. Two authors independently assessed eligibility, risk-of-bias, and extracted data.ResultsFive randomized controlled trials and four controlled observational cohorts were included. In G6PD deficient individuals, high-dose (0.75 mg/kg) PQ resulted in lower average haemoglobin levels at 7 days (mean difference [MD] −1.45 g/dl, 95% CI −2.17 to −0.74, 2 trials) and larger percentage fall from baseline to day 7 (MD −10.31%, 95% CI −17.69 to −2.92, 3 trials) compared to placebo. In G6PD deficient compared to replete people, average haemoglobin was lower at 7 days (MD −1.19 g/dl, 95% CI −1.94 to −0.44, 2 trials) and haemoglobin change from baseline to day 7 was greater (MD −9.10%, 95% CI −12.55 to −5.65, 5 trials). One small trial evaluated mid-range PQ dose (0.4–0.5 mg/kg) in G6PD deficient people, with no difference detected in average haemoglobin at day 7 compared to placebo. In one cohort comparing G6PD deficient and replete people there was a greater fall with G6PD deficiency (MD −4.99%, 95% CI −9.96 to −0.02). For low-dose PQ (0.1–0.25 mg/kg) in G6PD deficient people, haemoglobin change from baseline was similar to the placebo group (MD 1.72%, 95% CI −1.89 to 5.34, 2 trials). Comparing low dose PQ in G6PD deficient with replete people, the average haemoglobin was lower in the G6PD deficient group at 7 days (−0.57 g (95% CI −0.97 to −0.17, 1 trial)); although change from baseline was similar (MD −1.45%, 95% CI −5.69 to 2.78, 3 trials).ConclusionsFalls in average haemoglobin are less marked with the 0.1 to 0.25 mg/kg PQ than with the 0.75 mg/kg dose, and severe haemolytic events are not common. However, data were limited and the evidence GRADE was low or very low certainty.

Tu1956 A Meta-Analysis and Systematic Review of Prospective Studies: Technical and Clinical Success of Peroral Endoscopic Myotomy (POEM) in Treating Adult Patients With Achalasia

Tu1956 A Meta-Analysis and Systematic Review of Prospective Studies: Technical and Clinical Success of Peroral Endoscopic Myotomy (POEM) in Treating Adult Patients With Achalasia

Systemic review: High dose olanzapine treatment for treatment resistant schizophrenia

ObjectivesSchizophrenia is a major mental illness with a progressive course. Thirty percent of cases of patients with schizophrenia do not respond to adequate trials of at least 2 different groups of antipsychotics,are currently classified as having treatment resistant schizophrenia (TRS). Clozapine remains the gold standard, treatment of choice for TRS. However, clozapine does not come without its own challenges. Its risk profile, particularly agranulocytosis, reported in 1% of cases, has led to the necessity of weekly blood counts within the first 18 weeks of treatment and subsequently every month with slow dose titration. Clinically, sedation, weight gain and hypersalivation may further hamper the compliance of patients. Non-compliance has been reported to cause rebound psychosis. Recent studies have raised questions as to which antipsychotic is most efficacious for TRS. Thus, we conducted a systematic review of high dose olanzapine treatment for people with TRS.MethodA systematic review of prospective studies found through search of PubMed, Scopus and hand-searched key papers which included randomized controlled trials and open-label studies which looked at high dose of olanzapine treatment response for TRS.ResultsThe study is currently ongoing and preliminary results will be presented at the conference in April 2017.ConclusionsThe gravity of burden TRS brings to patients extends itself to their families, carers and clinicians. Further evidence on which antipsychotic is more efficacious for patients with TRS would have huge implications in terms of health benefits for the patients, better informed clinical decisions and also health economics in general.Disclosure of interestThe authors have not supplied their declaration of competing interest.

Systemic review: High dose olanzapine treatment for treatment resistant schizophrenia

ObjectivesSchizophrenia is a major mental illness with a progressive course. Thirty percent of cases of patients with schizophrenia do not respond to adequate trials of at least 2 different groups of antipsychotics are currently classified as having treatment resistant schizophrenia (TRS). Clozapine remains the gold standard, treatment of choice for TRS. However, clozapine does not come without its own challenges. Its risk profile, particularly agranulocytosis, reported in 1% of cases, has led to the necessity of weekly blood counts within the first 18 weeks of treatment and subsequently every month with slow dose titration. Clinically, sedation, weight gain and hypersalivation may further hamper the compliance of patients. Non-compliance has been reported to cause rebound psychosis. Recent studies have raised questions as to which antipsychotic is most efficacious for TRS. Thus, we conducted a systematic review of high dose olanzapine treatment for people with TRS.MethodA systematic review of prospective studies found through search of PubMed, Scopus and hand-searched key papers which included randomized controlled trials and open-label studies which looked at high dose of olanzapine treatment response for TRS.ResultsThe study is currently ongoing and preliminary results will be presented at the conference in April 2017.ConclusionsThe gravity of burden TRS brings to patients extends itself to their families, carers and clinicians. Further evidence on which antipsychotic is more efficacious for patients with TRS would have huge implications in terms of health benefits for the patients, better informed clinical decisions and also health economics in general.Disclosure of interestThe authors have not supplied their declaration of competing interest.

Predicting Cancer from Depression: A Systematic Review of Prospective Studies

Past research has proposed depression as a risk factor for developing cancer. Because results of previous prospective epidemiological investigations are found to be conflicting and inconclusive, the current review evaluates the substantiation of cancer resulting from depression by reviewing prospective cohort studies. Identified studies, through a sensitive search strategy with the help of keywords, from Medline and Embase were retrieved as per the developed protocol and the PRISMA 2009 recommendations. The screening for the relevance of studies and the entire process of selection was done with criteria. A validated checklist ensured methodological quality whereas accuracy was made certain by double-data extraction technique. Results suggest a possible causal link between depression and the risk of cancer. When chronic and severe depression predicted greater risk of cancer, findings are inconclusive on the link between less severe depression and cancer. With the high prevalence of mood disorders, this review draws the attention towards a common biological pathway linking depression and cancer. This also highlights the necessity to discover means to control it, and hints the toxic effect of depression on risk factors in elevating the risk of cancer. Research and clinical implications are also dealt.

An exploration of the role of a fish-oriented diet in cognitive decline: a systematic review of the literature.

Epidemiological studies have presented inconsistent evidence of the correlation between a fish-oriented dietary intake (FDI) and the risk of cognitive decline. To address these controversies, we performed this systematic review of prospective studies published in December 2016 and earlier using PubMed, Embase, and Web of Science. Two independent researchers conducted the eligibility assessment and data extraction; all discrepancies were solved by discussion with a third researcher. The pooled relative risks (RRs) focused on the incidence of events were estimated with 95% confidence intervals (CIs). Overall, nine studies containing 28,754 subjects were analyzed. When the highest and lowest categories of fish consumption were compared, the summary RR for dementia of Alzheimer type (DAT) was 0.80 (95%CI = 0.65–0.97); i.e., people with a higher intake of fish had a 20% (95%CI = 3–35%) decreased risk of DAT. Additionally, the dose-response synthesized data indicated that a 100-g/week increase in fish intake reduced the risk of DAT by an additional 12% (RR = 0.88, 95%CI = 0.79–0.99). Non-significant results were observed for the risk of dementia of all causes (DAC) and mild cognitive impairment (MCI). Limited evidence involving heterogeneity was found within subgroups or across studies. In conclusion, this review confirmed that a higher intake of fish could be correlated with a reduced risk of DAT. Further research, especially prospective studies that specifically quantify FDI, will help find a more accurate assessment of the different levels of dietary intake.

Parenting styles and body mass index: a systematic review of prospective studies among children.

Parenting style may be an important determinant of an individual's future weight status. However, reviews that evaluate the relationship between parenting style and weight-related outcomes have not focused on prospective studies. We systematically searched PubMed, Embase and PsychInfo for studies published between 1995 and 2016 that evaluated the prospective relationship between parenting style experienced in childhood and subsequent weight outcomes. We identified 11 prospective cohort studies. Among the eight studies that categorized parenting style into distinct groups (i.e. authoritative, authoritarian, permissive and neglectful), five provided evidence that authoritative parenting was associated with lower body mass index gains. Among the six highest quality studies, four suggested a protective role of authoritative parenting style against adverse weight-related outcomes. However, only one study controlled for a comprehensive set of confounders, and the small number of studies conducted within certain age groups precluded our ability to ascertain critical periods when parenting style is most strongly related to child weight. The present literature supports the idea that authoritative parenting may be protective against later overweight and obesity, although findings are mixed. More prospective cohort studies of longer durations, with more sophisticated methods that examine age-varying relationships, and that control for a comprehensive set of confounders, are needed.

Early Prediction of Acute Severe Pancreatitis; A Systematic Review of Prospective Studies to Determine Prognostic Accuracy

Early Prediction of Acute Severe Pancreatitis; A Systematic Review of Prospective Studies to Determine Prognostic Accuracy