Efficacy of Sodium-Glucose Cotransporter 2 Inhibitors in Preventing Heart Failure in Patients Receiving Anthracycline-Based Cancer Therapy: A Systematic Review and Meta-Analysis.

Anthracyclines are effective chemotherapeutic agents widely used to treat various cancers, but their use is limited by the risk of cardiotoxicity and heart failure. While strategies like dose reduction have been explored, there are no well-established therapies to mitigate this risk. Emerging evidence suggests sodium-glucose cotransporter 2 inhibitors (SGLT2i) may have cardioprotective effects, providing a rationale for investigating their potential utility in anthracycline-treated patients. We conducted a systematic review and meta-analysis to synthesize available evidence on the efficacy of SGLT2i in reducing heart failure incidence and mortality in patients undergoing anthracycline-based cancer therapy. Relevant studies were identified through comprehensive database searches and screened based on predefined criteria. Data extraction and quality assessment were performed independently by two reviewers. Four observational studies, encompassing 5,590 patients, were included. The pooled analysis showed a higher but non-significant risk of developing heart failure in the non-SGLT2i group compared to the SGLT2i group (RR = 0.67, 95% CI: 0.40-1.41). The risk of all-cause mortality was significantly lower in patients receiving SGLT2i (RR = 0.55, 95% CI: 0.39-0.77). This meta-analysis suggests SGLT2i are associated with a lower risk of mortality and heart failure incidence in anthracycline-treated patients, although larger studies are needed to confirm these findings. The mechanisms underlying these potential benefits require further elucidation. Despite limitations, this analysis highlights the promising role of SGLT2i as a cardioprotective strategy in this high-risk population.

Comparison of Effectiveness and Safety of Direct-Acting Oral Anticoagulants and Vitamin K Agonists in Patients With Atrial Fibrillation and End-Stage Kidney Disease: A Systematic Review and Meta-Analysis.

The objective of the study is mentioned, but it could be further clarified by explicitly stating the aim to compare the effectiveness and safety of direct oral anticoagulants (DOACs) versus vitamin K antagonists (VKAs) specifically in patients with atrial fibrillation (AF) and end-stage renal disease (ESRD). We conducted a thorough electronic search of the literature, encompassing databases such as PubMed, EMBASE, Cochrane Library, and Web of Science from their inception up to March 5, 2024. Furthermore, we meticulously examined the bibliographies of included studies to identify additional relevant literature. The reporting of this meta-analysis adhered to the guidelines outlined in the Preferred Reporting of Systematic Review and Meta-analysis guidelines. The endpoints evaluated in this meta-analysis included all-cause mortality, stroke or systemic embolism, and major bleeding. Data analysis was carried out utilizing RevMan Version 5.4 (Cochrane, London, United Kingdom). Dichotomous outcomes, including all-cause mortality, stroke or systemic embolism, and major bleeding, were presented as risk ratios (RRs) with corresponding 95% confidence intervals (CI). A total of 11 studies were incorporated in this meta-analysis, comprising a pooled sample size of 44,863 participants with AF. The pooled analysis revealed no significant disparity between DOACs and VKAs concerning stroke or systemic embolism (RR: 0.93, 95% CI: 0.77 to 1.14) and all-cause mortality (RR: 0.86, 95% CI: 0.74 to 1.00). However, there was a noteworthy reduction in the risk of major bleeding events associated with DOACs compared to VKAs (RR: 0.84, 95% CI: 0.73 to 0.96). Consequently, DOACs may be considered a viable alternative to warfarin in patients with ESRD. However, we need further larger clinical trials to validate these findings.

Comparison of Effectiveness of High Dose Statin Monotherapy With Combination of Statin and Ezetimibe to Prevent Cardiovascular Events in Patients With Acute Coronary Syndrome: A Systematic Review and Meta-Analysis.

This meta-analysis aimed to compare the effectiveness of high statin monotherapy and a combination of statin and ezetimibe to prevent cardiovascular outcomes in patients with acute coronary syndrome (ACS). The study was conducted according to Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. We conducted comprehensive searches across online databases, including MEDLINE/ PubMed, EMBASE, and the Web of Science, to find the relevant articles from the databases' inception to 10 Feb 2024. Outcomes assessed in the meta-analysis included major cardiovascular events (MACE), all-cause mortality, stroke, myocardial infarction, and unplanned revascularization. Data analysis was conducted utilizing RevMan Version 5.3.1. The comparison of outcomes between the two groups involved the calculation of risk ratios (RR) accompanied by 95% confidence intervals (CI) using either a random or fixed-effect model. Five studies were included in this meta-analysis, encompassing 48,668 patients. The pooled analysis showed that the risk of all-cause mortality was higher in patients receiving high statin monotherapy. However, no significant differences in MACE, myocardial infarction, stroke, and revascularization were reported. While acknowledging the limitations, including the lack of randomized controlled trials and the dominance of one study in the analysis, these findings underscore the importance of further research to clarify the comparative effectiveness of these treatment modalities in preventing cardiovascular outcomes in ACS patients.

Comparing the Efficacy and Safety of Warfarin Monotherapy vs. Warfarin and Aspirin for Adult Patients With Left Ventricular Assist Devices: A Meta-Analysis.

The aim of this meta-analysis was to assess the safety and efficacy of warfarin plus aspirin versus warfarin monotherapy in patients with left ventricular assist devices (LVAD). The present meta-analysis was conducted using the guidelines of Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA). Two authors systematically searched online databases, including PubMed, EMBASE, the Cochrane Library, and Web of Science from inception to December 31, 2023. Outcomes assessed in this meta-analysis included any thrombotic event, bleeding events, and all-cause mortality. A total of five articles were included in the meta-analysis, enrolling a pooled sample size of 876 patients, including 405 in the warfarin monotherapy group and 471 in the warfarin plus aspirin group. Pooled analysis showed that the risk of thrombotic events was not significantly different between the two groups (risk ratio (RR): 0.46, 95% confidence interval (CI): 0.15-1.37). The risk of bleeding events was significantly lower in patients receiving warfarin alone compared to patients receiving aspirin plus warfarin (RR: 0.67, 95% CI: 0.53-0.85). The risk of all-cause mortality was not significantly different between patients receiving warfarin alone and patients receiving aspirin plus warfarin (RR: 0.92, 95% CI: 0.65-1.30). Despite the potential benefits of discontinuing aspirin, the decision should be approached cautiously, considering the undefined risks of discontinuing anticoagulation in LVAD patients.

Meta-Analysis on the Impact of Inflammatory Rheumatological Conditions on Outcomes Following Acute Coronary Syndrome.

Inflammatory rheumatological conditions, also known as inflammatory rheumatic conditions (IRC), constitute a category of autoimmune and inflammatory ailments primarily affecting the musculoskeletal system, encompassing the joints, muscles, and connective tissues. The objective of this meta-analysis is to evaluate the impact of inflammatory rheumatological conditions (IRC) on post-acute coronary syndrome (ACS) outcomes. This study was performed as per the preferred reporting items for systematic review and meta-analysis (PRISMA) guidelines. The PubMed, Web of Science, and Scopus databases were searched by two authors without any language constraints from January 1, 2015, to October 15, 2023. The primary outcome assessed in this meta-analysis was all-cause mortality. Other outcomes included myocardial infarction and revascularization. A total of 11 studies were included in this meta-analysis. The risk of all-cause mortality was significantly higher in patients with IRC compared to non-IRC patients (RR: 1.12, 95% CI: 1.00 to 1.26, p-value: 0.04). There is a significantly higher risk of myocardial infarction and revascularization in patients with IRC as opposed to those without IRC. Furthermore, while there was a higher risk of stroke in the IRC group compared to the non-IRC group, this disparity did not reach statistical significance. Future research should focus on specific inflammatory rheumatoid conditions, a comprehensive evaluation of cardiovascular events, and targeted interventions to enhance patient outcomes in this vulnerable population.

Comparison of the Effectiveness of Prolonged Infusion and Intermittent Infusion of Meropenem in Patients With Sepsis: A Meta-Analysis.

The aim of this study was to compare the clinical effectiveness of prolonged infusion and intermittent infusion of meropenem in patients with sepsis. This meta-analysis was conducted following the Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) 2020 guidelines. PubMed, Web of Science, Scopus, and the Cochrane Library were searched without any language or time restrictions, up to September 25, 2023. The primary outcomes assessed in this meta-analysis included clinical success and all-cause mortality. Other outcomes assessed in this study encompassed the mean length of ICU stay. Total eight studies met the eligibility criteria and were included in this meta-analysis. Pooled analysis showed that the clinical success rate was significantly higher in patients receiving prolonged infusion of meropenem compared to intermittent infusion (RR: 1.49, 95% CI: 1.30 to 1.70). All-cause mortality was 24% significantly lower in patients receiving prolonged infusion of meropenem compared to intermittent infusion (RR: 0.76, 95% CI: 0.60 to 0.96). The results suggest that prolonged infusion of meropenem could be a more effective and efficient treatment for sepsis patients. However, more randomized controlled trials are needed to confirm these findings and to establish the optimal dosing and administration schedule for prolonged infusion of meropenem.

Factors Associated With Acute Kidney Injury in Patients Undergoing Transcatheter Aortic Valve Implantation: A Systematic Review and Meta-Analysis.

The aim of this meta-analysis is to assess the effect of different independent predictors on acute kidney injury (AKI) after transcatheter aortic valve implantation (TAVI). This meta-analysis adhered to the guidelines of the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA). A comprehensive database search was conducted using PubMed, Web of Science, and Scopus for the period from January 1, 2015, to August 15, 2023. The following key terms were employed: "transcatheter aortic valve implantation" OR "transcatheter aortic valve replacement" AND "acute kidney injury" OR "acute renal failure." Our search was limited to studies published exclusively in the English language. The statistical analysis was conducted using RevMan version 5.4.1 (The Cochrane Collaboration). Estimates were presented as odds ratio (OR) with 95% confidence interval (CI) for categorical variables, while continuous variables were reported as mean difference (MD) with 95% CI. A total of 19 studies met the selection criteria and were included in the meta-analysis. The pooled incidence of AKI was reported as 20% (95% CI: 18-20%). Factors significantly associated with post-TAVI AKI encompass hypertension, chronic kidney disease (CKD), low estimated glomerular filtration rate (eGFR), high baseline creatinine levels, peripheral vascular disease (PVD), Society of Thoracic Surgeons (STS) score, European System for Cardiac Operative Risk Evaluation (EUROscore) II, and the transfemoral surgical approach.

Comparison of Long-Term Outcomes of Patients With Myocardia Infarction (MI) With Non-obstructive Coronary Arteries and MI With Obstructive Coronary Arteries: A Systematic Review and Meta-Analysis.

The aim of this study was to compare long-term outcomes in patients with myocardial infarction with non-obstructive coronary arteries (MINOCA) and patients with myocardial infarction with obstructive coronary arteries (MIOCA). This meta-analysis was conducted according to the recommendations of the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA). The literature search was conducted in online databases including PubMed and Web of Science from 2010 onwards. Primary outcomes assessed in this meta-analysis included major adverse cardiovascular events (MACE) and all-cause mortality. Secondary outcomes included cardiovascular mortality and myocardial infarction. A total of 16 studies were included in the meta-analysis. Pooled analysis showed that the risk of MACE was higher in MIOCA patients (risk ratio (RR): 1.47, 95%CI: 1.43-1.52, p-value: 0.001) compared to MINOCA patients. Additionally, the risk of all-cause mortality was also significantly higher in MIOCA patients compared to MINOCA (RR: 1.33, 95%CI: 1.14-1.56, p-value: 0.001). Our findings also indicate that patients with MIOCA are at a significantly higher risk of recurrent myocardial infarction and cardiovascular-related mortality compared to patients with MINOCA. Overall, the insights gained from this meta-analysis have significant clinical implications, guiding decision-making in the management of patients with MINOCA.

Safety and Efficacy of Istaroxime in Patients With Acute Heart Failure: A Meta-Analysis of Randomized Controlled Trials.

The aim of this study was to assess the efficacy and safety of istaroxime in patients with heart failure. Following the Preferred Reporting Items for Systematic Review and Meta-Analyses (PRISMA) guidelines, a search was conducted on the EMBASE and Medline databases to identify articles related to the safety and efficacy of istaroxime in patients with heart failure. The search covered the period from inception to May 31st, 2023, without any restrictions on the year of publication. The search strategy utilized relevant terms such as "istaroxime," "heart failure", "efficacy," and other related terms, along with their corresponding Medical Subject Headings (MeSH) terms. The outcomes assessed in this meta-analysis included the change in left ventricular ejection fraction (LVEF), E to A ratio (a marker of left ventricle function), cardiac index in L/min/m2, systolic blood pressure (SBP) in mmHg, left ventricular end-systolic volume (LVESV) in ml, and left ventricular end-diastolic volume (LVDSV) in ml. For safety analysis, gastrointestinal events and cardiovascular events were assessed. A total of three randomized controlled trials (RCTs) were included in this meta-analysis encompassing 211 patients with heart failure. Pooled analysis showed that istaroxime was effective in increasing LVEF (MD: 1.26, 95% CI: 0.91 to 1.62, p-value: 0.001), reducing E to A ratio (MD: -0.39, 95% CI: -0.60 to -0.19, p-value: 0.001), increasing cardiac index (MD: 0.22, 95% CI: 0.18 to 0.25, p-value: 0.001), reducing LVESV (MD: -11.84, 95% CI: -13.91 to -9.78, p-value: 0.001), reducing LVEDV (MD: -12.25, 95% CI: -14.63 to -9.87, p-value: 0.001) and increasing SBP (MD: 8.41, 95% CI: 5.23 to 11.60, p-value: 0.001) compared to the placebo group. However, risk of gastrointestinal events was significantly higher in patients receiving istaroxime compared to the placebo group (RR: 2.64, 95% CI: 1.53 to 4.57, p-value: 0.0005). These findings support the enhancement of heart function with istaroxime administration, aligning with previous clinical and experimental evidence.

Comparison of High Ligation Versus Low Ligation of the Inferior Mesenteric Artery (IMA) on Short-Term and Long-Term Outcomes in Sigmoid Colon and Rectal Cancer Surgery: A Meta-analysis.

This study was done to compare the perioperative outcomes and long-term outcomes between low ligation and high ligation of the inferior mesentric artery (IMA) in sigmoid colon and rectal cancer surgery. This study was conducted following the recommendations of the Preferred Reporting Items for Systematic Review and Meta-Analyses (PRISMA). A literature search was performed in electronic databases including PubMed, CINAHIL, EMBASE, and Web of Science to identify studies published between January 1, 2015, and April 30, 2023. The outcomes assessed in this meta-analysis included postoperative complications (anastomotic leakage, surgical site infection, and postoperative ileus), intraoperative outcomes (duration of surgery in minutes, total intraoperative blood loss in milliliters, total lymph nodes harvested, and total number of metastatic lymph nodes), recovery outcomes (time to first flatus and length of hospital stay), and long-term outcomes (five-year mortality rate and disease-free survival rate). A total of 17 studies were included in this meta-analysis. Of these, six were randomized control trials (RCTs) and 11 were retrospective cohort studies. This meta-analysis suggests that lower ligation may be associated with a lower risk of anastomotic leakage compared to higher ligation in patients undergoing colon cancer surgery. However, there was no significant difference between the two techniques in terms of surgical site infection, postoperative ileus, total lymph nodes harvested, number of metastatic lymph nodes, duration of surgery, intraoperative blood loss, and length of hospital stay. Time to first flatus was significantly shorter in patients who underwent lower ligation. Additionally, there were no significant differences in the five-year mortality rate and disease-free survival rate between the two techniques. The results of this study indicate that both techniques are comparable in most aspects and suggest that the choice of technique should be based on individual patient factors and surgeon preference.

Efficacy of Hydroxyurea in Transfusion-Dependent Major ß-Thalassemia Patients: A Meta-Analysis.

The present meta-analysis was conducted to determine the efficacy of hydroxyurea in patients with transfusion dependent major ß-thalassemia. The present meta-analysis was conducted following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) and Meta-analyses of Observational Studies in Epidemiology (MOOSE) guidelines. A systematic search was carried out to evaluate the efficacy of hydroxyurea in patients with transfusion-dependent B-thalassaemia using electronic databases, including MEDLINE, Cochrane Central Register of Controlled Trials, and EMBASE. The keywords used to search for relevant studies included "hydroxyurea", "thalassemia", "transfusion-dependent", and "efficacy". Outcomes assessed in the present meta-analysis included transfusion in one year and intervals between transfusions (in days). Other outcomes assessed in the present meta-analysis were fetal hemoglobin (%), hemoglobin (%), and ferritin levels (ng/dl). Total of five studies were included in the analysis enrolling 294 patients with major B-thalassemia. The pooled analysis reported that the mean interval between transfusions was significantly higher in patients receiving hydroxyurea compared to those not receiving hydroxyurea (mean deviation {MD}: 10.07, 95% CI: 2.16, 17.99). Hemoglobin was significantly higher in patients receiving hydroxyurea compared to its counterparts (MD: 1.71, 95% CI: 0.84, 2.57). Patients receiving hydroxyurea had significantly lower ferritin levels compared to those not receiving hydroxyurea (MD: -299.65, 95% CI: -518.35, -80.96). These findings suggest that hydroxyurea may be a promising and cost-effective alternative to blood transfusions and iron chelation therapies for beta-thalassemia patients. However, the authors noted that further randomized controlled trials are needed to validate these findings and to determine the optimal dosages and treatment regimens for hydroxyurea in this patient population.

Comparison of Efficacy and Safety of Angiotensin Receptor-Neprilysin Inhibitors in Patients With Heart Failure With Reduced Ejection Fraction: A Meta-Analysis.

The present meta-analysis was conducted to compare the safety and efficacy of angiontensin receptor neprilysin inhibitor (ARNI) with angiotensin receptor blockers (ARBs) and angiotensin-converting-enzyme inhibitors (ACEi) in patients with heart failure with reduced ejection fraction (HFrEF). This meta-analysis was conducted and reported in accordance with the guidelines of the Preferred Reporting Items for Systematic Reviews and Meta-analysis (PRISMA) statement. Two authors carried out a scientific literature search on online databases, including EMBASE, PubMed, and the Cochrane Library. The following keywords or corresponding Medical Subject Headings (MeSH) were used for the search of relevant articles: "heart failure with reduced ejection fraction," "angiotensin receptor-neprilysin inhibitor," "Angiotensin receptor blockers," and "clinical outcomes." Outcomes assessed in the present meta-analysis included changes in ejection fraction (EF) from baseline in percentage. Other outcomes assessed in the present meta-analysis included all-cause mortality, cardiovascular death, and hospitalization due to heart failure. Adverse events assessed in the present meta-analysis included hypokalemia, acute kidney injury, and hypotension. Total 10 studies were included. This meta-analysis showed that treatment with ARNI was associated with a significantly lower risk of all-cause mortality and cardiovascular death compared to control groups. There was no significant difference between the two groups in terms of change of EF from baseline or hospitalization related to heart failure. However, the risk of hypotension was significantly higher in patients receiving ARNI. The study findings support the use of ARNI as first-line therapy for heart failure with reduced ejection fraction. Further studies are required to determine the optimal use of ARNI in heart failure management and to investigate the mechanisms underlying the increased risk of hypotension.

Comparison of the Efficacy and Safety of Metformin-Based Combination Therapy Versus Metformin Alone in Children and Adolescents With Type 2 Diabetes Mellitus: A Meta-Analysis.

The aim of this meta-analysis is to synthesize and critically evaluate the available evidence on the comparison of the efficacy and safety of metformin-based combination therapy versus metformin alone in children and adolescents with type 2 diabetes mellitus (T2DM). We performed the present meta-analysis according to the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) guidelines. Eligible studies were identified using electronic searches for randomized controlled trials (RCTs) using PubMed, the Cochrane Central Register of Controlled Trials (CENTRAL), and clinicaltrial.gov from inception to 31 January 2023. The outcomes examined in this meta-analysis included change from baseline in glycated hemoglobin (HbA1C) (%), fasting plasma sugar (FPG) (mg/dl), and the number of individuals experiencing adverse events. Three studies met the criteria and were included in the meta-analysis. The reduction of HbA1C was significantly higher in metformin-based combination therapy (MD: -1.19, 95% CI: -2.05, -0.33, p-value: 0.007). No significant difference was reported between patients randomized in metformin-based combination therapy and metformin alone (MD: -18.67, 95% CI: -50.17, 12.84, p-value: 0.25). In conclusion, the present meta-analysis found that the reduction in HbA1C was significantly higher in patients receiving metformin-based combination therapy compared to metformin alone. No significant difference was found between the two groups in terms of the change in fasting plasma glucose (FPG) from the baseline. In relation to safety, no significant difference was found in the incidence of adverse events and serious adverse events between the two groups.

Beneficial Impacts of Fenoldopam on Patients With or at Risk for Acute Renal Failure and Undergoing Surgery: A Meta-Analysis of Randomized Clinical Trials.

This meta-analysis aims to determine the beneficial impacts of fenoldopam on patients with or at high risk of acute kidney injury (AKI) and undergoing surgery. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines were followed while performing the present meta-analysis. Two investigators searched electronic databases including PubMed, EMBASE, and the Cochrane library, from inception until January 10, 2023, for relevant studies. The key terms used to search for relevant articles included "fenoldopam", "acute kidney injury" and "surgery". The primary outcome was the incidence of new AKI. Secondary outcomes included change in serum creatine from baseline (mg/dl), length of stay in ICU (days), renal replacement therapy (RRT), and all-cause mortality that included mortality before or at 30 days. A total of 10 studies involving 1484 patients were included in the present meta-analysis. The risk of AKI was lower in the fenoldopam group compared to the control group [risk ratio (RR): 0.73, 95% CI: 0.57-0.95]. The length of ICU stay was also shorter in the fenoldopam group [mean difference (MD): -0.35 days, 95% confidence interval (CI): -0.68, -0.03]. No significant differences were reported in terms of all-cause mortality, change in serum creatinine, and RRT. In conclusion, our meta-analysis of studies on the use of fenoldopam in adult patients undergoing major surgery showed that fenoldopam significantly reduces the risk of AKI and shortens ICU stays. However, there was no significant impact on all-cause mortality or RRT.

The Impact of Vitamin B12 Supplementation on Clinical Outcomes in Patients With Diabetic Neuropathy: A Meta-Analysis of Randomized Controlled Trials.

Diabetic neuropathy (DN) is one of the most prevalent and expensive microvascular consequences of diabetes mellitus (DM), which is noteworthy given that it is frequently both underdiagnosed and undertreated in daily clinical practice. The aim of the current article was to review the efficiency of vitamin B12 supplementation in isolation or in combination therapy for the treatment of diabetic peripheral neuropathy. This meta-analysis was designed according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA). A systematic electronic search was performed in PubMed and Cochrane Library to identify randomized controlled trials (RCTs) assessing the impact of vitamin B12 outcomes in patients with diabetic neuropathy without putting restrictions on the year of publication. A combination of the following keywords was used: "diabetic neuropathy," "vitamin B12," and "outcomes." The primary outcomes assessed in the current meta-analysis included neuropathic symptoms and vibration perception threshold (VPT). Secondary outcomes included a change in pain score from baseline, total cholesterol (mg/dL), high-density lipoprotein (HDL), and low-density lipoprotein (LDL). A total of six articles were selected to be included in the current meta-analysis. Patients receiving vitamin B12 showed a greater reduction of mean neuropathic symptoms (standardized mean difference (SMD): -0.39, 95% confidence interval (CI): -0.73, -0.05, p-value: 0.03) and pain score (SMD: -3.60, 95% CI: -4.68, -1.43, p-value<0.001) compared to the control group. No significant effect of vitamin B12 was found on VPT (mean difference (MD): -4.80, 95% CI: -11.03, 1.42, p-value: 0.13), change in HDL (MD: 0.14, 95% CI: -2.37, 2.65, p-value: 0.91), LDL (MD: 2.59, 95% CI: -5.94, 11.12, p-value: 0.55), and total cholesterol (MD: -2.72, 95% CI: -11.52, 6.08, p-value: 0.54). The current meta-analysis found that vitamin B12 can improve neuropathic symptoms and reduce pain in patients with diabetic neuropathy. However, the current study did not report any significant difference between patients who received vitamin B12 and placebo in terms of HDL, LDL, and total cholesterol.

Impact of Catheter Ablation on Long-Term Outcomes in Patients With Atrial Fibrillation: A Meta-Analysis.

The role of catheter ablation in patients with atrial fibrillation (AF) in enhancing long-term outcomes remains unknown. This meta-analysis aimed to assess the impact of catheter ablation on stroke, all-cause mortality, hospitalization due to heart failure, and major bleeding events in patients with atrial fibrillation. This meta-analysis was conducted in compliance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. The data search was carried out by two authors independently using online databases including PubMed, EMBASE, and Cochrane library. The primary outcome was a stroke. The secondary outcomes were all-cause mortality, hospitalization for heart failure, and major bleeding events. Total, 10 articles were included in the current meta-analysis encompassing 275392 patients (33291 in the ablation group and 244974 in the non-ablation group). Among all included studies, one study was a randomized control trial, while the remaining other were retrospective cohorts. The current meta-analysis showed that catheter-based AF ablation reduced the risk of stroke (hazard ratio {HR}: 0.61, 95% CI: 0.49-0.77), all-cause mortality (HR: 0.60, 95% CI: 0.51-0.71), and hospitalization for heart failure (HR: 0.57, 95% CI: 0.43-0.76). No significant differences were reported in terms of major bleeding events between patients who received catheter-based AF ablation and patients who did not receive catheter-based AF ablation (HR: 0.96, 95% CI: 0.80-1.14). In the current meta-analysis, catheter-based AF ablation was associated with decreased risk of all-cause mortality, stroke, and hospitalization due to heart failure. However, no significant difference was reported in terms of major bleeding events.

The Efficacy of Various Pharmacological Agents on Long-Term Outcomes in Patients With Heart Failure With Preserved Ejection Fraction: A Meta-Analysis of Randomized Control Trials.

The beneficial impacts of various drugs on long-term outcomes in patients with heart failure with preserved ejection fraction (HFpEF) have been a matter of controversy. The aim of this meta-analysis was to systematically review randomized control trials (RCTs) involving patients with heart failure with preserved left ventricular ejection fraction (LVEF) and identify the effects of various treatment options [angiotensin-converting enzyme (ACE) inhibitors, beta-blockers, angiotensin receptor blockers, and aldosterone receptor blockers] on all-cause mortality, cardiovascular mortality, and hospitalization due to cardiovascular reasons. The current meta-analysis has been conducted as per the Preferred Reporting Items of Systematic Reviews and Meta-Analyses (PRISMA) guidelines. A comprehensive literature search was performed without any restrictions on language by using the electronic databases Cochrane Library, EMBASE, and PubMed up to July 20, 2022. The outcomes assessed in this meta-analysis included all-cause mortality, cardiovascular mortality, and hospitalization due to cardiovascular reasons. Overall, 10 articles were included in the current meta-analysis with a pooled sample size of 13,336 patients with HFpEF. In comparison to the placebo, among all four pharmacological agents, beta-blockers were the only agent that decreased the risk of all-cause mortality and cardiovascular outcomes. On the other hand, a significant reduction in hospitalization due to cardiac-related reasons was reported in patients on ACE inhibitors as compared to placebo. No other pharmacological agent had an impact on hospitalization due to cardiac-related reasons. The current meta-analysis indicates the possible benefits of beta-blockers in HFpEF in terms of reducing cardiovascular death and all-cause mortality.

Effect of Vitamin E on Clinical Outcomes in Patients With Non-alcoholic Fatty Liver Disease: A Meta-Analysis.

The aim of the current meta-analysis was to assess the effects of vitamin E on clinical outcomes in individuals with non-alcoholic fatty liver disease (NAFLD). The current meta-analysis was planned, reported, and conducted per the guidelines of the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement. Two authors systematically searched for all papers using PubMed, Cochrane Central Register, and Embase from inception to October 15, 2022. Outcomes assessed in the current meta-analysis included changes in alanine transaminase (ALT) and aspartate transaminase (AST) from baseline in IU/L. Other outcomes included a change in BMI (kg/cm2), a change in total cholesterol level from baseline (mg/l), and a fibrosis score. Total articles were included in the current meta-analysis, enrolling 569 patients (274 patients in the vitamin E group and 295 in the placebo group). The study found that reduction in ALT levels, AST levels, and BMI was significantly greater in patients in the vitamin E group compared to the placebo group. However, no significant differences were reported in terms of change in fibrosis score and total cholesterol.