Pooled Mean Difference Research Articles

Efficacy and safety of transcranial direct current stimulation (tDCS) in treatment of refractory epilepsy: an updated systematic review and meta-analysis of randomized sham-controlled trials.

Despite the currently available treatment, one-third of epilepsy patients continue to experience seizures. Transcranial direct current stimulation (tDCS) has emerged as a potential neuromodulation approach for the non-invasive treatment of refractory epilepsy. This study aims to provide a comprehensive investigation of the efficacy and safety of tDCS in patients with drug-resistant epilepsy. The following databases were searched from inception until June 2023; PubMed, Scopus, Embase, WOS, EBSCO, Cochrane Central, and Ovid MEDLINE. Pooled mean difference was calculated for change in seizure frequency (SF), and number of Interictal epileptiform discharges (IEDs) at different follow-up intervals. We included nine parallel randomized sham-controlled trials with a total of 267 patients. Active tDCS patients had a significantly lower SF per month at 4 and 8 weeks (MD = -4.06, 95% CI [-6.01 to -2.12], p < 0.0001), and (MD = -2.66, 95% CI [-5.09 to -0.23], p = 0.03), respectively. However, weekly SF showed no statistically significant results at 4 weeks of follow-up. The IEDs were observed to significantly decline at 2, 4, and 8 weeks of follow-up. The reported adverse events were mild including mild itching and erythematous rash that resolved spontaneously. In conclusion, tDCS significantly reduced monthly SF and the number of IEDs. Future large RCTs with standard clear informed parameters are still required.

Anti-Porphyromonas gingivalis Antibody Levels in Patients With Stroke and Atrial Fibrillation: A Systematic Review and Meta-Analysis.

Atrial fibrillation (AF) and stroke are two highly related conditions, with periodontitis and periodontal pathogens, such as Porphyromonas gingivalis (Pg), appearing to be the most prominent common risk factors. In this study, we evaluated studies assessing Pg infection via serum/plasma anti-Pg antibodies in patients with AF and/or stroke. Online databases (PubMed, Scopus, Embase, and the Web of Science) were screened for studies showing the association between anti-Pg antibodies with stroke and/or AF. Relevant data were extracted, and a subsequent random-effects meta-analysis was performed to calculate the pooled odds ratio (OR) or standardized mean difference (SMD) and 95% confidence intervals (CIs) for Pg seropositivity or anti-Pg antibody levels in stroke patients compared to controls. Sixteen studies were included in the systematic review. Based on the meta-analysis performed, there was no significant difference in Pg IgA and IgG levels between patients with stroke and controls (IgA: SMD 0.11, 95% CI -0.02 to 0.25, p = 0.1; IgG: SMD -0.12, 95% CI -1.24 to 0.99, p = 0.83). Similarly, no difference was observed between these groups in terms of Pg IgA and IgG seropositivity (IgA: OR 1.63, 95% CI 1.06-2.50, p = 0.026; IgG: OR 2.30, 95% CI 1.39-3.78, p < 0.001). Subsequently, we reviewed the results of six articles investigating serum or plasma IgG antibodies against Pg in patients with AF. Our results revealed a strict association between Pg infection and AF, with AF patients exhibiting either higher anti-Pg antibody levels or a higher prevalence of positive serum Pg antibodies. Our study supports the clinical utility of Pg infection assessment in patients with periodontitis and those with AF and solicits more focused studies to corroborate its use in clinical settings to enhance overall outcomes, reduce the risk of complications like stroke, and help fine-tune personalized therapies.

Systematic Review and Meta-Analysis of Sclerocarya birrea on Metabolic Disorders: Evidence from Preclinical Studies

Background/Objectives: Metabolic disorders, including diabetes, obesity, and cardiovascular diseases, are significant global health issues. Nutraceuticals, such as Sclerocarya birrea (SB), known for its high polyphenol content, are increasingly explored for managing these conditions. This study aims to evaluate the antihyperglycemic, hypolipidemic, and antihypertensive effects of SB in animal models to understand its potential as a natural intervention for metabolic diseases. Methods: A systematic review and meta-analysis were conducted according to PRISMA guidelines. Searches across databases like PubMed, Web of Science, Embase, and Scopus identified studies using SB in animal models of metabolic disorders. Inclusion criteria were studies with SB intervention, control groups, and quantitative measures of metabolic parameters. The study was registered with INPLASY (INPLASY2024100031). Results: The meta-analysis revealed that SB significantly reduces blood glucose levels in diabetic animal models. Acute administration of SB showed a pooled standardized mean difference (SMD) of −7.13 (95% CI: −11.44 to −2.83) at 1 h and −9.75 (95% CI: −15.92 to −3.59) at 2–4 h post-administration. Chronic administration indicated a non-significant reduction in glucose levels (SMD: −5.69, 95% CI: −16.38 to 5.01). Conclusions: SB appears to have the potential for reducing blood glucose levels and may offer benefits for other cardiometabolic risk factors, including lipid profiles and oxidative stress. However, variability in the results underscores the need for further research, including standardized animal studies and clinical trials, to confirm these effects and clarify the mechanisms by which SB may impact metabolic disorders.

Abstract 4134589: Evaluating risk factors of embolism in patients with cardiac myxoma: A systematic review and meta-analysis

Background: Risk stratification for embolism in cardiac myxomas remains poorly explored. Goals: By this meta-analysis we studied the risk factors assicated with embolism among patients with cardiac myxoma. Methods: A comprehensive search was conducted across PubMed, Embase, Cochrane Library, and Google Scholar from their inception until January 2024. Statistical analyses were performed using Cochrane's RevMan 5.4 software. For each risk factor, the pooled odds ratio or mean difference was calculated along with the corresponding 95% confidence interval. Results: We included 18 studies in our analysis with a total population of 2601 out of which 525 patients (20.1%) had at least one episode of embolism. The pooled analyses showed that hypertension (p = 0.001), New York Heart Association I/II (p = 0.03), irregular tumor surface (p &lt;0.00001), hyperlipidemia (p &lt; 0.0001), coronary artery disease (p=0.01), high mean platelet volume (p=0.02), high tumor mobility (p&lt;0.00001), were significantly associated with increased incidence of embolism. Female gender (p = 0.03) was the only risk factor associated with reduced risk. Other factors like smoking, atrial fibrillation, tumor size, age, body mass index (BMI), diabetes, left ventricular ejection fraction (LVEF), left atrial diameter (LAD) were not significantly associated with embolism (p &gt; 0.05). Conclusion: Our study is the first to report significant pooled outcomes for gender, hyperlipidemia, coronary artery disease, mean platelet volume, and tumor mobility in the population discussed. Hypertension, New York Heart Association I/II, irregular tumor surface, hyperlipidemia, coronary artery disease, mean platelet volume and tumor mobility were significantly associated with high risk while female gender was associated with low risk of embolism. Patients with high-risk factors might benefit from early evaluation and definitive treatment (surgery).

Evaluating the Diagnostic Potential of Four-Dimensional Flow Magnetic Resonance Imaging in Aortic Stenosis Diagnosis: A Systematic Review and Meta-Analysis.

This systematic review and meta-analysis evaluates the potential of four-dimensionalflow magnetic resonance imaging(4DFM) in assessing aortic stenosis (AS) compared to traditional imaging modalities like two-dimensional phase contrast MRI (2D MRI) and transthoracic echocardiography (TTE). AS is a common and severe valvular heart disease, particularly in older adults, requiring accurate diagnosis for proper clinical management. Conventional imaging methods have limitations in capturing complex flow dynamics, prompting the need for advanced modalities like 4DFM. The objectives of the review were to determine whether 4DFM offers superior diagnostic metrics, including peak aortic jet velocity, transvalvular pressure gradients, and aortic valve area (AVA), and to identify potential advantages of 4DFM in overcoming the limitations of traditional modalities. This review included six cohort studies with 285 participants, examining the diagnostic accuracy of 4DFM in terms of peak aortic jet velocity, transvalvular pressure gradients, and aortic valve area (AVA). Studies were selected from MEDLINE (PubMed), Cochrane Library, and Google Scholar databases between December 2010 and October 2024. The study pool was limited by stringent inclusion criteria focusing on cohort studies that directly compared 4DFM with TTE or 2D MRI for AS assessment. The National Institutes of Health Quality Assessment Tool and Cochrane ROBINS-I tool were used to assess bias. Quantitative results showed that 4DFM typically measured higher AVA values than TTE, with a mean difference of 0.48 cm² (95% CI: -0.16 to 1.12). For mean pressure gradients, 4DFM reported slightly higher measurements in individual studies, but pooled results showed no significant difference compared to TTE (mean difference: 3.32 mmHg, 95% CI: -2.30 to 8.93). In terms of peak aortic jet velocity, 4DFM demonstrated a pooled mean difference of -0.18 m/s (95% CI: -0.44 to 0.08) compared to TTE. High heterogeneity was observed across studies (e.g., I² = 97% for peak velocity, I² = 93% for AVA), likely due to differences in patient populations, imaging protocols, and software for data analysis.4DFM demonstrates potential as a complementary imaging tool, particularly in complex AS cases where conventional methods like TTE may provide inconclusive results. Its capacity to capture intricate flow dynamics and deliver high spatial resolution could inform clinical decision-making, potentially influencing practice guidelines to integrate 4DFM as a supplementary tool. Limitations such as high costs, specialized training requirements, and access challenges currently restrict widespread adoption. Limitations of this review include small sample sizes, high heterogeneity, and variability in patient populations and imaging protocols. Despite these challenges, 4DFMI demonstrated superior spatial resolution and complex cardiovascular flow assessment, suggesting it could serve as a valuable complement to TTE for more detailed AS evaluation, particularly in complex cases.Future studies should aim to standardize imaging protocols, incorporate larger and more diverse populations, and conduct cost-benefit analyses to support the integration of 4DFM into clinical practice, potentially shaping future diagnostic guidelines.

Pharmacist interventions in the control of hypertension and adherence to anti-hypertensive treatment: A systematic review and meta-analysis of randomised controlled trials

Abstract Introduction Non-adherence to antihypertensive therapy is one of the major barriers for the achievement of blood pressure (BP) control and has a significant cost burden1. Non-adherence is also thought to be one of the leading factors leading to ethnic disparities in hypertension control in the UK2. Pharmacists have an important role in the management of hypertension and non-adherence due to their ideal position to promote optimal use of medication3. Many have advocated for pharmacist involvement in team-based hypertension management, however which pharmaceutical care interventions are most effective remains unclear. There have been many new studies in recent years exploring the effect of pharmacist interventions in hypertension and this meta-analysis provides an update of the current literature and quantification of the results. Aim This study aimed to systematically evaluate the efficacy of pharmacist-delivered interventions for adults with hypertension and examine the intervention characteristics associated with greater BP-lowering efficacy. The primary outcome was the change in BP and secondary outcomes were % achieving BP control. Methods Systematic review and meta-analysis of randomized controlled trials (RCTs). This review was registered on PROSPERO. Embase, CENTRAL, MedLine, Psychinfo and CINAHL were searched until February 2024. Eligible studies included adult patients with a diagnosis of essential hypertension where a pharmacist intervention (alone or collaborative care) targeting BP control was compared with control (usual care). Exclusion criteria included secondary hypertension, pregnancy, children and review articles/case studies. The risk of bias was assessed by the Cochrane risk-of-bias tool for RCTs. The primary outcome was change in BP. We extracted data on sample and intervention characteristics. Meta-analysis was performed using Comprehensive Meta-Analysis Software v4. Moderator analyses examined the association between intervention effects and intervention features. This study was a systematic review and meta-analysis of already completed trials and so ethical approval was not required. Results 2402 articles were retrieved. After removal of duplicates, 1538 were screened by title and abstract against the inclusion criteria. 88 studies with 25,516 participants were included. Mean intervention duration was 7.2 months (range 1-14 months). The overall pooled mean differences in systolic BP (SBP) and diastolic BP (DBP) between pharmacist intervention and control were -7.39 (-8.56, -6.23) mmHg and -3.99 (-4.61, -3.37) mmHg respectively, both P&amp;lt;0.001. With BP control, pharmacist interventions caused a significant increase in those achieving BP control compared to usual care (+21 (16.88, 25.27) %, P&amp;lt;0.001). Duration of intervention had no influence on change in SBP or DBP (both P&amp;gt;0.05). Discussion Pharmacists can make a significant impact in the management of hypertension in respect to increasing treatment adherence and improving BP control and this study highlights the importance of including them as part of the multidisciplinary team responsible for patient care. Limitations of the present study include the inability to extract individual patient data and stratification by ethnicity, socioeconomic status and gender. However, pharmacist interventions in hypertension significantly reduced SBP and DBP and improved BP control. Identifying the characteristics of the most effective interventions can lead to better treatment adherence and BP-lowering in patients with hypertension.

Deep vein thrombosis in response to stress induced by earthquakes in Japan: a meta-analysis of possible exacerbating factors

The principal goal of this study was to assess factors associated with deep vein thrombosis (DVT) in the aftermath of earthquakes in Japan. We searched PubMed, Google Scholar, Web of Science, and Cochrane Library for articles published in English or Japanese regarding indicators for DVT associated with Japanese earthquakes. We calculated pooled odds ratios (OR) or mean differences (MD) with 95% confidence intervals (CIs) for patients with DVT (the DVT group) as compared with the non-DVT group for potential predictors. Ultimately, 7 articles were included in the analysis, comprising 6,637 subjects (DVT, 895; and non-DVT, 5,742). The following factors proved statistically significant: female gender (OR = 1.48, 95% CI; 1.20–1.81, p = 0.0002), greater age (MD = 4.44, 95% CI; 1.62–7.25, p = 0.002), hypertension (OR = 1.44, 95% CI; 1.18–1.75, p = 0.0003), heart disease (OR = 1.45, 95% CI; 1.07–1.97, p = 0.02), previous history of DVT (OR = 9.23, 95% CI; 2.94–28.91, p = 0.0001), sleeping pill use (OR = 1.81, 95% CI; 1.37–2.38, p = 0.0001), lower leg varix (OR = 1.63, 95% CI; 1.17–2.28, p = 0.004), and soleal vein dilatation ≥ 8 mm (OR = 2.13, 95% CI; 1.32–3.42, p = 0.002). Our findings furnish insights that can aid in making informed choices about healthcare and policy in the context of earthquake-induced stress.

Cardiac Rehabilitation for Fontan Circulation Patients: A Systematic Review, and Meta-Analysis

Background and Objectives: Despite advances in the surgical management of patients with Fontan circulation, their exercise capacity and quality of life remain significantly impaired. Exercise-based cardiac rehabilitation (CR) offers promising improvements in these areas, but the implementation and adherence to these programmes are often inconsistent. This systematic review and meta-analysis aimed to evaluate the safety, efficacy, and optimal exercise modalities for Fontan patients. Materials and Methods: A systematic search of PubMed, Scopus, Web of Science, and Cochrane Library was conducted on 24 August 2023. Studies were screened and assessed for quality using the Cochrane RoB Tool 2 and STROBE checklist. Meta-analysis was performed using a continuous random-effects model to determine the effectiveness of various CR interventions, including aerobic exercise training (AET), resistance training, and inspiratory muscle training (IMT). Results: A total of 26 studies (7 RCTs, 19 cohorts) comprising 22 distinct cohorts were included, with a total sample size of 428 Fontan patients. The interventions ranged from 4 weeks to 24 months and included AET (18 studies), resistance training (11 studies), and IMT (6 studies). The meta-analysis revealed significant improvements in exercise capacity, with a pooled mean difference in peak VO2 of 1.947 (95% CI: 1.491 to 2.402, p &lt; 0.001). Subgroup analyses showed that combined AET and resistance training had the most robust effect, with a mean difference of 2.11 (95% CI: 1.57 to 2.65, p &lt; 0.001). Home-based interventions showed significant benefits, while supervised and hybrid interventions did not show statistically significant differences. Publication bias was identified, particularly in home-based interventions, where smaller studies demonstrated larger effect sizes, as confirmed by Egger’s test (Intercept = 2.417, 95% CI: 1.498 to 3.337, p = 0.001). However, no significant bias was detected in supervised or hybrid interventions, which displayed symmetrical distributions in funnel plots and non-significant Egger’s test results. Conclusions: CR appears to be an effective intervention for improving exercise capacity in Fontan patients, particularly when combining AET with resistance training. Home-based programmes offer promising results, though the potential for publication bias, especially in smaller studies, warrants cautious interpretation of these findings. Further research is needed to refine protocols, explore long-term outcomes, and determine the underlying mechanisms, particularly for patients with more severe clinical presentations. The low incidence of adverse events across the studies reinforces the safety of these interventions.

Association between nickel exposure and diabetes risk: an updated meta-analysis of observational studies

ObjectiveThe results of epidemiological studies on the association between nickel exposure and diabetes remain controversial. Therefore, an update meta-analysis was conducted to examine the association between urinary nickel levels and diabetes risk, and to focus on whether there is an association between blood nickel levels and diabetes risk.MethodsRelevant studies were comprehensively searched from PubMed, Web of Science, and Wanfang databases from their inception to July 2024. The random-effects model was utilized to determine pooled Standard Mean Difference (SMD) and 95% confidence intervals (CIs), with stratified and sensitivity analyses also performed. Heterogeneity between studies was assessed using I2 statistic, while publication bias was evaluated using Egger's and Begg's tests. The quality of the included studies was assessed using the Newcastle-Ottawa Scale.ResultsA total of 19 studies involving 46,071 participants were included in this meta-analysis. The random-effects model indicated that the pooled SMD for nickel exposure levels in diabetic patients and non-diabetic controls were 0.16 (95% CI 0.07–0.2) for urine and 0.03 (95% CI −0.20 to 0.27) for blood, respectively.ConclusionIt was discovered that diabetes risk was positively correlated with urinary nickel levels, whereas there was no significant correlation with blood nickel levels. Furthermore, it appeared that the association between nickel exposure and diabetes risk differ in individuals with diabetes compared to those with pre-diabetes, and that the direction of the correlation may even be reversed. In conclusion, more high-quality prospective studies are needed in order to validate these findings in future research endeavors.Systematic Review Registrationhttps://www.crd.york.ac.uk/PROSPERO, registration number: CRD42024534139.

Vericiguat in heart failure patients: analyzing safety, tolerability, and quality of life via meta-analysis of randomized controlled trials

Abstract Background Heart failure (HF) poses a significant burden on global healthcare systems, necessitating effective therapeutic interventions. Vericiguat, a novel agent targeting soluble guanylate cyclase, has emerged as a potential treatment for HF. Purpose To understand its impact on patient outcomes, including safety, tolerability, and quality of life (QoL). Methods A comprehensive meta-analysis was conducted, encompassing four randomized controlled trials (RCTs) identified through Cochrane CENTRAL, Ovid Medline R, Pubmed, and Web of Science databases up to December 1, 2023. The primary efficacy outcome, Kansas City Cardiomyopathy Questionnaire (KCCQ) Overall Summary Score (OSS), and the primary safety outcome, drug-related serious adverse events (AEs), were analyzed. Pooled mean differences (MD) and risk ratios (RR) were calculated using inverse variance common-effect model. Results The meta-analysis encompassed 5947 patients across the four RCTs. Our findings indicated that vericiguat did not demonstrate a significant beneficial effect on KCCQ-OSS (MD -0.13, 95% CI -1.32 to 1.05), suggesting no substantial impact on overall QoL, despite a statistically significant improvement in the KCCQ-Physical Limitation Score (PLS) (MD 3.74, 95% CI 0.24 to 7.24) compared to placebo. Notably, vericiguat exhibited a favorable safety and tolerability profile, with comparable risk for AEs leading to death (RR 1.32, 95%CI, 0.58 to 3.03), withdrawal due to AEs (RR 1.08, 95% CI 0.88 to 1.32) or serious AEs (RR 1,18, 95%CI, 0,50; 2,80), renal and urinary disorders (RR 0.99, 95% CI 0.88 to 1.11), symptomatic hypotension (RR 1.17, 95% CI 0.98 to 1.40), and acute kidney injury (RR 1.04, 95% CI 0.83 to 1.31) compared to placebo. Conclusion Vericiguat demonstrates promising safety and tolerability profiles in patients with HF. While our analysis reveals significant improvement in KCCQ-PLS, indicating enhanced physical limitation scores, the lack of statistically significant impact on overall QoL raises questions about its comprehensive efficacy. These findings underscore the need for further research to elucidate the holistic impact of vericiguat on patient-reported outcomes in heart failure management.Forest plot of quality of life outcomesForest plot of safety outcomes

Systematic review and meta-analysis on the effects of physical activity-based interventions on frailty status and clinical outcomes in adults with long-term cardiac conditions

Abstract Introduction Frailty is common in patients with long-term cardiac conditions and is associated with poor clinical outcomes, but limited treatment options are available. Previous studies investigating interventions for frailty have shown positive results with physical activity interventions, however, these studies were largely based on general elderly populations. Aim To assess the impact of physical activity-based interventions on frailty and clinical outcomes in frail patients with long-term cardiac conditions. Methods A systematic review and meta-analysis was conducted based on the PRISMA guideline, using Medline, Embase, CENTRAL, PEDro, CINAHL electronic databases for articles published between 2000 and 2023. Studies which recruited adults &amp;gt;18 years with long-term cardiac conditions (including angina, acute coronary syndrome (ACS), valve disease, heart failure (HF), atrial fibrillation, cardiac surgery and congenital heart disease) who underwent physical activity-based interventions were included. The primary outcome was change in frailty (measured using a validated tool) post intervention. We also assessed the effect of interventions on mortality and hospitalisation. Results We screened 2697 records and reviewed 91 full-text articles; 12 studies (14 articles) were included, involving 1394 patients. Median age of participants ranged from 64 to 82 years. Five studies recruited participants with HF, 3 evaluated participants post transaortic valve implantation, 3 recruited cardiac surgical patients and 1 study evaluated participants post ACS. Physical activity-based interventions were multi-domain, including a mixture of aerobic, strength, balance, endurance and respiratory muscle training; the majority (N=10) had individualised exercise prescription. Meta-analysis of 8 randomised controlled trials (RCTs) showed statistically significant improvement in frailty associated with physical activity-based interventions compared to controls [pooled standardised mean difference (95% CI) = -0.34 (-0.59 to -0.08), p = 0.01, I2 = 48%]. Seven RCTs evaluated change in frailty by short physical performance battery (SPPB). Meta-analysis of these studies showed a statistically significant improvement in SPPB associated with physical activity-based interventions compared to controls [pooled mean difference (95% CI) = 0.83 (0.31-1.34), p = 0.002, I2 = 49%]. (Figure) The magnitude of improvement in SPPB exceeded the minimally clinically significant improvement of 0.5. Three studies evaluated the effect of physical activity-based intervention on clinical outcomes, all of which showed neutral effect on mortality and hospitalisation. Conclusion Physical activity-based interventions in patients with frailty and long-term cardiac conditions were associated with significant improvement in frailty status, with neutral effect on mortality and hospitalisation. Figure: Meta-analysis of 7 RCTs assessing effect of physical activity-based interventions on SPPB

Stimulation of the withdrawal reflex in gait training after stroke: A systematic review and meta-analysis.

After a stroke many people experience hemiparesis, resulting in walking difficulties which affects independence, mobility, and participation in activities of daily living. Activating the nociceptive withdrawal reflex (NWR) during gait training aims to support the initiation and facilitation of the swing phase of the paretic leg. The aim of this review is to investigate the orthotic and therapeutic effects of a NWR stimulation intervention to improve gait in patients after a stroke. We searched the databases CENTRAL, DORIS, MEDLINE, and PEDro, trial registers and reference lists. We selected randomized controlled trials using any type of stimulation of the NWR in people after stroke, comparing it to any control intervention, and reporting a change in gait performance assessed by means of any appropriate measurement method. We included three studies in this review, all of which used electrical stimulation to elicit the NWR during walking. The orthotic effect was investigated in one study, and the therapeutic effect in two studies, comparing walking with and without electrical stimulation-triggered NWR. The meta-analysis revealed a borderline statistical significance result for the therapeutic effect. The pooled mean difference between the treatment and control group (random-effects model) for walking speed was 0.13 m/s (95% CI -0.04 to 0.29; I2 = 72%) after treatment and 0.17 m/s (95% CI -0.03 to 0.37; I2 = 62%) at follow-up. Activating the NWR during gait training has not been investigated frequently so far. By using electrical stimulation-elicited NWR, severely affected hemiparetic patients may improve their walking speed.

Cardioprotective role of statins in breast cancer patients treated with anthracyclines and/or trastuzumab: a systematic review and meta-analysis

Abstract Background Statins may have cardioprotective effects in patients undergoing cardiotoxic chemotherapy regimens. Yet, their role in mitigating anthracycline and/or trastuzumab-induced cardiotoxicity in patients with breast cancer remains unclear. Purpose To perform a systematic review and meta-analysis to evaluate the efficacy of statins in mitigating anthracycline and/or trastuzumab-induced cardiotoxicity among patients with breast cancer. Methods We systematically searched PubMed, Embase, and Cochrane databases until January 2024 for studies comparing the efficacy of statin therapy versus no statin therapy in breast cancer patients receiving either anthracyclines, trastuzumab, or both. Cardiotoxicity was defined as per the definition of each individual study. A random-effects model was used to assess pooled risk ratios (RR) and mean differences (MD) with corresponding 95% confidence intervals. Statistical analyses were performed using Review Manager version 5.4.1. Results We included five studies, of which two were randomised trials. The pooled population comprised 1,839 anthracyclines and/or trastuzumab-treated patients with breast cancer, of whom 864 (47%) received statin therapy. In the pooled analyses, cardiotoxicity was significantly lower in the statin therapy group as compared with the no statin therapy group (RR 0.45; 95% CI 0.27 to 0.72; p=0.001; Figure 1A), additionally statin therapy was associated with a significantly lower reduction in left ventricular ejection fraction as compared with no statin therapy (MD 4.11%; 95% CI 2.68 to 5.53; p&amp;lt;0.00001; Figure 1B). Conclusion In this meta-analysis, statin therapy in anthracyclines and/or trastuzumab-treated patients with breast cancer was associated with lower cardiotoxicity and decline in left ventricular ejection fraction.

Evolution of Thoracic Disc Herniation Surgery: Future Perspectives from a Systematic Review and Meta-Analysis

Background: The neurosurgical treatment of thoracic disc herniation (TDH) has undergone dramatic changes over the years in terms of surgical approaches and intraoperative technological tools. There is still no unanimous consent on the criteria for approach selection, and the choice varies among Institutions. The aim of this study is to compare anterior and posterolateral approaches for TDH in terms of functional and surgical outcomes. Methods: A systematic literature review and meta-analysis according to PRISMA guidelines from EMBASE, PubMed, Cochrane Library, Web of Science, and Google Scholar online databases up to May 2024 incorporated studies that reported outcomes of thoracic disc herniation surgeries. Analyzed factors included major peri- and postoperative complications, intraoperative blood loss, hospital stay, neurological improvement, and complete hernia resection. Random-effect models were used to calculate pooled odds ratios and mean differences. Results: The posterolateral approach was associated with significantly lower rates of major medical (OR 0.14, 95% CI: 0.07 to 0.27) and surgical complications (OR 0.61, 95% CI: 0.38 to 0.99) compared to the anterior approach. Additionally, posterolateral approaches reduced intraoperative blood loss and shorter hospital stays. Posterolateral techniques were linked to higher odds of neurological improvement (OR 0.65, 95% CI: 0.43 to 0.99) and higher rates of complete hernia resection (OR 0.38, 95% CI: 0.21 to 0.71). Conclusions: Posterolateral approaches offer advantages in terms of safety, recovery, neurological improvement, and complete hernia resection. More extensive prospective studies are needed to confirm these findings and refine surgical strategies. Emerging technologies, such as the exoscope and 45° endoscopy, may further enhance surgical outcomes.

Effectiveness of laser therapy among patients with open-angle glaucoma: a systematic review and meta-analysis study.

This study aims to evaluate the efficacy of selective laser trabeculoplasty in improving the intraocular pressure in patients diagnosed with open-angle glaucoma. A comprehensive search was performed across electronic databases, including PubMed, Scopus, and Web of Science, until June 2024, using keywords related to "selective laser trabeculoplasty" and "open-angle glaucoma." Studies were chosen based on set eligibility criteria. Data extraction was carried out by two independent reviewers, and statistical analyses were performed using a random-effects model to calculate the pooled mean differences in IOP reduction and overall success rates. The initial search yielded 3111 articles, with 23 studies included in the systematic review and 22 in the meta-analysis. The pooled MD in IOP reduction between the SLT and control groups was -1.44 mm Hg (95% CI: -2.19 to -0.70, p < 0.01). Subgroup analyses revealed a MD of -0.76 mm Hg (95% CI: -1.31 to -0.21, p < 0.01) when comparing SLT to medication, and -0.42 mm Hg (95% CI: -0.64 to -0.19, p < 0.01) when comparing 180-degree SLT to 360-degree SLT. The pooled success rate favored SLT with an odds ratio (OR) of 0.71 (95% CI: 0.51 to 0.99, p = 0.05). There was significant heterogeneity among the studies (I² = 71%). SLT is effective in lowering IOP in OAG patients, demonstrating significant efficacy compared to medication and different SLT protocols. The findings underscore SLT's potential as a reliable treatment option. However, the observed heterogeneity underscores the necessity for standardized protocols in future research to improve comparability and verify SLT's long-term effectiveness.

Vitamin D association with systemic sclerosis and its clinical features: A systematic review, meta-analysis, and meta-regression.

The aim of this review was to summarize existing data on the contribution of Vitamin D level and/or deficiency/insufficiency to systemic sclerosis susceptibility and its clinical features. An electronic literature search for eligible studies among all papers published prior to 30 June 2024 was conducted through PubMed, EMBASE, Web of science, and Scopus databases. Meta-analyses estimating pooled raw mean differences, odds ratios, and Pearson r together with subgroup analyses and meta-regressions were performed for the association of Vitamin D with susceptibility to systemic sclerosis and disease presentation. Combined analysis revealed a significant decrease in Vitamin D level in systemic sclerosis patients comparatively to healthy controls, with raw mean differences 95% CI = -11.68 [-15.43 to -7.92] ng/mL, p < 1 E-10. Likewise, Vitamin D insufficiency (Vitamin D < 30 ng/mL) and deficiency (<10 ng/mL) were significantly associated with systemic sclerosis; odds ratios 95% CI = 3.58 [2.59-4.95], p < 1 E-10 and odds ratios 95% CI = 7.67 [3.97-14.83], p < 1 E-10, respectively. Moreover, decreased Vitamin D level was significantly associated with interstitial lung disease occurrence (raw mean differences 95% CI = -3.61 [-6.93 to -0.3], p = 0.003), while Vitamin D deficiency was associated with increased systolic pulmonary arterial pressure, raw mean differences (95% CI = 4.17 [1.44-6.89], p = 0.003). Besides, Vitamin D level was negatively correlated with the modified Rodnan skin score, r (95% CI = -0.26 [-0.44 to -0.08], p = 0.004). Conversely, Vitamin D level was significantly increased in systemic sclerosis patients with cutaneous calcinosis, raw mean differences (95% CI = 4.18 [1.07-7.28], p = 0.008). This meta-analysis showed that decreased Vitamin D level was associated with susceptibility to systemic sclerosis, interstitial lung disease occurrence, increased systolic pulmonary arterial pressure, and higher modified Rodnan skin score. Conversely, calcinosis was found to be associated with increased Vitamin D level. This review has been registered on PROSPERO: CRD42024565045, available from: https://www.crd.york.ac.uk/prospero/display_record.php?ID=CRD42024565045.

Meal replacements on obesity and leptin: a systematic review and meta-analysis.

The global prevalence of obesity and overweight is a significant concern in the field of public health. Numerous interventional studies have been conducted to assess the possible meal replacements (MRs) effect on anthropometric indicators and indices and laboratory test that reflect obesity. However, there are no comprehensive results in this field. The study aim was to understand the possible effects of MRs on body weight, body mass index (BMI), fat mass, waist circumferences (WC), and leptin levels. A systematic search was conducted in five electronic databases in order to find randomized clinical trials (RCTs) that examined the possible MRs effect on obesity. Analyses were performed in R software, version 4.2.1. The random-effects model analysis was used to provide pooled mean difference and 95% confidence intervals (95% CI). Seventy studies were included. Body weight (WMD: -3.35 kg, 95% CI: -4.28 to -2.42), BMI (WMD: -1.12 kg/m2, 95% CI: -1.51 to -0.72), fat mass (WMD: -2.77 kg, 95% CI: -3.59 to -1.6), WC (WMD: -2.82 cm, 95% CI: -3.51 to -2.12) were significantly reduced after MRs compared to control. No significant effect was observed on leptin (WMD: -3.37 ng/ml, 95% CI: -8.23 to 1.49). Subgroup analyses indicated that impact of total MRs on anthropometric factors was greater in comparison to partial MRs. Considering other lifestyle factors, MRs can lead to anthropometric indicators and indices reduction.

Management of Obstructive Sleep Apnea in the Infant: A Systematic Review and Meta-analysis.

To evaluate the improvement in respiratory parameters of infants with obstructive sleep apnea (OSA) treated with medical or surgical intervention. A comprehensive review was completed using the PubMed, Web of Science, Embase, and Cochrane libraries including articles published from 1975 to 2024. Interventions studied included adenotonsillectomy, mandibular distraction osteogenesis (MDO), tongue/lip adhesion, partial glossectomy, floor-of-mouth release, supraglottoplasty, oral appliances, tracheostomy, and positioning. Continuous positive airway pressure (CPAP) served as a control. Outcomes studied included pre- and postintervention obstructive apnea-hypopnea index. Studies included randomized controlled trials and case-control trials. A total of 2161 records were identified, and 59 studies were included in the analysis. Data was extracted following Preferred Reporting Items for Systematic Reviews and Meta-analyses guidelines and pooled using a random-effects model. The primary study outcome established prior to data collection was a change in the apnea-hypopnea index. A meta-analysis of MDO performed in infants for OSA demonstrated an overall pooled mean difference (pre-apnea-hypopnea index minus post-apnea hypopnea index) of 30.1 (95% confidence interval: 22.9, 37.4; 10 studies, 373 patients). No other data was pooled for analysis due to study heterogeneity. All CPAP studies showed apnea resolution. Tailored therapies including supraglottoplasty and tongue-lip adhesion reduced but did not resolve apneic events. Current investigations of the evaluation and treatment of infant OSA are limited by heterogeneity in reporting and study. Mandibular distraction and CPAP are promising.

Liver and renal biochemical profiles of people with sickle cell disease in Africa: a systematic review and meta-analysis of case-control studies

BackgroundSickle cell disease (SCD) is a genetic blood disorder characterized by a painful vaso-occlusive crisis due to the sickling of red blood cells in capillaries. Complications often lead to liver and renal dysfunctions, contributing to morbidity and mortality, particularly for children under 5. This systematic review and meta-analysis aimed to evaluate the liver and renal functions of people with SCD (HbSS) compared to those without it (HbAA) in Africa.MethodsThe protocol was registered with PROSPERO (CRD42022346771). We searched PubMed, Embase, Web of Science, and Google Scholar using the keywords “liver function”, “renal function”, “sickle cell disease”, and “Africa” on 6th May 2023 for peer-reviewed articles with abstracts in English. We included case-control studies comparing SCD (HbSS) with controls without hemoglobinopathies (HbAA). We used the random-effect model to calculate the pooled average values for the blood tests of people with SCD in RStudio version 4.2.2.ResultsOverall, 17 articles were analyzed from five African countries involving 1312 people with SCD and 1558 controls. The pooled mean difference of liver enzymes aspartate transaminase (AST) was 8.62 (95% CI − 2.99–20.23, I2 = 97.0%, p < 0.01), alanine transaminase (ALT) 7.82 (95% CI − 0.16–15.80, I2 = 99%, p < 0.01) and alkaline phosphatase (ALP) − 2.54 (95% CI − 64.72 – 59.64, I2 = 99%, p < 0.01) compared to controls. The pooled mean difference for the renal biochemical profiles creatinine − 3.15 (95% CI − 15.02; 8.72, I2=99%, p < 0.01) with a funnel plot asymmetry of t = 1.09, df = 9, p = 0.3048 and sample estimates bias of 6.0409. The pooled mean difference for serum urea was − 0.57 (95% CI − 3.49; 2.36, I2 = 99%, p < 0.01), and the estimated glomerular filtration (eGFR) rate was 19.79 (95% CI 10.89–28.68 mL/min/1.73 m2, I2 = 87%, p < 0.01) compared to controls.ConclusionPeople with SCD have slightly elevated liver enzymes and estimated glomerular filtration rates compared to controls in Africa. With all the heterogeneity (I2) > 50%, there was substantial variation in the reported articles’ results.Systematic review registrationPROSPERO CRD42022346771

Efficacy of Thiocolchicoside for Musculoskeletal Pain Management: A Systematic Review and Meta-Analysis of Randomized Controlled Trials.

Background: Despite the fact that thiocolchicoside has been widely used in the treatment of musculoskeletal pain, its efficacy has never been systematically evaluated. We carried out a systematic review and meta-analysis of randomized clinical trials (RCTs) to appraise the existing evidence on the efficacy of thiocolchicoside for musculoskeletal pain management. Methods: The literature search was performed on multiple databases, extracting reports of RCTs evaluating the efficacy of thiocolchicoside compared to placebo or no exposure. The reduction in pain intensity was evaluated through between-groups mean differences (MDs) in Visual Analogue Scale (VAS) scores after the intervention. The pooled effect estimates were compared to a minimally important difference (MID) of 1 point on a scale from 0 to 10. Results: We retrieved eight RCTs, including a total of 1397 patients. All the included studies were determined as being at high risk of bias. Seven trials evaluated patients with acute low back pain. After 2-3 days of treatment, the pooled MD in VAS score was -0.49 (95%CI = -0.90; -0.09) compared to controls. After 5-7 days of treatment, the summary MD was -0.82 (95%CI = -1.46; -0.18). Conclusions: Although thiocolchicoside was found to significantly reduce patient-reported low back pain, the clinical impact was very small, as the pooled effect estimates were below the MID, and the overall certainty of evidence was very low. In light of the safety concerns raised by the European Medicine Agency, an in-depth analysis on the risk-benefit balance of thiocolchicoside is required.