The latest medical research on Endovascular surgery

The research magnet gathers the latest research from around the web, based on your specialty area. Below you will find a sample of some of the most recent articles from reputable medical journals about endovascular surgery gathered by our medical AI research bot.

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Scheduled Follow-Up and Association with Emergency Department Use and Readmission after Trauma.

American College of Surgeons

After traumatic injury, 13-14% of patients utilize the emergency department (ED) and 11% are readmitted within 30 days. Decreasing ED visits and readmission represents a target for quality improvement. This cohort study evaluates risk factors for ED visits and readmission after trauma, focusing on outpatient follow-up.

We conducted a retrospective chart review of adult trauma admissions from 1/1/2018-12/31/2021. Our primary exposure was outpatient follow-up, our primary outcome was ED use, and our secondary outcome was readmission. Multivariable logistic regression evaluated the association between primary exposure and outcomes, adjusting for factors identified on unadjusted analysis.

2,266 patients met inclusion criteria, with an 11.3% ED visit rate and 4.1% readmission rate. Attending follow-up did not have a significant association with ED visits (OR 0.99, 95% CI 0.99-2.01, p=0.05) or readmission rates (OR 1.68, 95% CI 0.95-2.99, p=0.08). Significant associations with ED use included non-white race, depression, anxiety, substance use disorder, discharge disposition, and being discharged with lines or drains. Significant associations with readmission included depression, anxiety, and discharge disposition.

Emphasizing outpatient follow-up in trauma patients is not an effective target to decrease ED use or readmission. Future studies should focus on supporting patients with mental health comorbidities and investigating interventions to optimally engage with trauma patients after hospital discharge.

Cost-Utility Analysis of Vericiguat in Heart Failure with Reduced Ejection Fraction After Worsening Heart Failure Events in China.

Cardiovascular Drugs

Vericiguat is a new medication to demonstrate clinical efficacy in heart failure with reduced ejection fraction (HFrEF) after worsening heart failure (WHF) events, but its cost-utility was unknown. We aimed to assess the cost-utility of combining the application of vericiguat with standard treatment in HFrEF patients who had WHF events.

A multistate Markov model was implemented to mimic the economic results of HFrEF patients who had WHF events in China after receiving vericiguat or placebo. An analysis of cost-utility was conducted; most parameters were set according to the published studies and related databases. All the utilities and costs were decreased at a rate of 5% annually. The incremental cost-effectiveness ratios (ICERs) were the primary outcome measure. We also conducted sensitivity analyses.

Over a 20 year lifetime horizon, additional use of vericiguat led to an elevated cost from US$9725.03 to US$20,660.76 at the current vericiguat costs. This was related to increased quality-adjusted life years (QALYs) from 2.50 to 2.66, along with an ICER of US$65,057.24 per QALY, which was over the willingness-to-pay (WTP) threshold of US$36,096.30 per QALY. If the vericiguat costs were discounted at 80%, it contributed to an ICER of US$12,226.77 per QALY. Additional use of vericiguat for patients with plasma N-terminal pro-B-type natriuretic peptide (NT-proBNP) of ≤ 5314 pg per ml produced an ICER of US$23,688.46 per QALY. The outcomes of the one-way sensitivity analysis showed the risk of death from cardiovascular disease in both groups was variable with the highest sensitivity. The probabilistic sensitivity analysis showed that 41.6% of the mimicked population receiving vericiguat combined with standard therapy was cost-effective at the WTP threshold of US$36,096.30 per QALY.

From the perspective of Chinese public healthcare system, the combined use of vericiguat and standard treatment in patients with HFrEF following WHF events did not generate advantages in cost-utility in China but was a cost-effective therapeutic strategy for those who with plasma NT-proBNP of ≤ 5314 pg per ml.

Evaluation of the Lifetime Benefits of Metformin and SGLT2 Inhibitors in Type 2 Diabetes Mellitus Patients with Cardiovascular Disease: A Systematic Review and Two-Stage Meta-Analysis.

Cardiovascular Drugs

Metformin and sodium-glucose cotransporter-2 (SGLT2) inhibitors have demonstrated cardiovascular benefits but their comparative effects on mortality in type 2 diabetes mellitus (T2DM) patients with cardiovascular disease (CVD) are unknown. Hence, we evaluated and compared lifetime benefits arising from metformin or SGLT2 inhibitors in T2DM patients with CVD.

Studies published in the PubMed, EMBASE and CENTRAL databases before 28 October 2023 were retrieved. Treatment effects of metformin against US FDA-approved SGLT2 inhibitors in T2DM patients with CVD were evaluated and lifetime gains in event-free survival were estimated from our primary endpoints of all-cause and cardiovascular mortality. Risk ratios were derived to assess their impact on secondary outcomes such as major adverse cardiovascular events and hospitalizations for heart failure.

Overall, 14 studies were included. Five studies published Kaplan-Meier curves for the primary outcome of all-cause mortality. Individual participant data were reconstructed from these Kaplan-Meier curves, from which we conducted our two-stage meta-analysis. Participants receiving metformin and SGLT2 inhibitors experienced a reduction in the risk for all-cause mortality as compared with those not taking metformin and placebo. However, participants receiving SGLT2 inhibitors had a higher all-cause mortality (hazard ratio 1.308, 95% confidence interval 1.103-1.550) versus metformin. Treatment with metformin was estimated to offer an additional 23.26 months of survival free from all-cause mortality versus 23.04 months with SGLT2 inhibitors.

In patients with T2DM and CVD, metformin and SGLT2 inhibitors were associated with substantially lower all-cause mortality rates and slightly longer life expectancies than in patients without. Metformin presented an advantage over SGLT2 inhibitors in reducing all-cause mortality.

Trends in Oral Anticoagulant Use and Individual Expenditures Across the United States from 2014 to 2020.

Cardiovascular Drugs

Landmark clinical trials have expended the indications for the direct oral anticoagulants (DOACs), but contemporary data on usage and expenditure patterns are lacking.

This study aimed to assess annual trends in oral anticoagulant (OAC) utilization and expenditure across the United States (US) from 2014 to 2020.

We utilized the Medical Expenditure Panel Survey (MEPS) to study the trends of use and expenditures of warfarin, dabigatran, rivaroxaban, apixaban, and edoxaban between 2014 and 2020 in the US. Survey respondents reported OAC use within the past year, which was verified against pharmacy records. Payment information was obtained from the respondent's pharmacy and was categorized as third-party or self/out-of-pocket. Potential indications and medical conditions of interest for OAC therapy were identified from respondent-reported medical conditions. We estimated the national number of OAC users and total expenditures across age, sex, race, ethnicity, insurance, and medical condition subgroups. Trends of OAC users' characteristics, expenditure, and number of prescriptions were evaluated using the Mann-Kendall test for trends.

Between 2014 and 2020, the number of warfarin users decreased from 3.8 million (70% of all OAC users) to 2.2 million (p = 0.007) [29% of all OAC users], while the number of DOAC users increased from 1.6 million (30% of all OAC users) to 5.4 million (p = 0.003) [70% of all OAC users]. The total expenditure of OACs in the US increased from $3.4 billion in 2014 to $17.8 billion in 2020 (p = 0.003), which was driven by the increase in DOAC expenditures (p = 0.003).

DOACs have replaced warfarin as the preferred OAC in the US. The increased costs associated with DOAC use may decline when generic formulations are approved.

Comparative Safety and Efficacy of Low/Moderate-Intensity Statin plus Ezetimibe Combination Therapy vs. High-Intensity Statin Monotherapy in Patients with Atherosclerotic Cardiovascular Disease: An Updated Meta-Analysis.

Cardiovascular Drugs

Statin therapy is considered the gold standard for treating hypercholesterolemia. This updated meta-analysis aims to compare the efficacy and safety of a low/moderate-intensity statin in combination with ezetimibe compared with high-intensity statin monotherapy in patients with atherosclerotic cardiovascular disease (ASCVD).

A systematic search of two databases (PubMed and Cochrane CENTRAL) was conducted from inception to January 2023 and a total of 21 randomized clinical trials (RCTs) were identified and included in the analysis. Data were pooled using Hedges's g and a Mantel-Haenszel random-effects model to derive standard mean differences (SMDs) and 95% confidence intervals (Cis). The primary outcome studied was the effect of these treatments on lipid parameters and safety events.

The results revealed that combination therapy was more effective in reducing low-density lipoprotein cholesterol (LDL-C) levels (SMD= - 0.41; CI - 0.63 to - 0.19; P = 0.0002). There was no significant change in the levels of high-density lipoprotein cholesterol (HDL-C), total cholesterol (TC), triglyceride (TG), high-sensitivity C-reactive protein (hs-CRP), Apo A1, or Apo B. The safety of these treatments was assessed by the following markers alanine aminotransferase (ALT), aspartate aminotransferase (AST), and creatine phosphokinase (CK), and a significant difference was only observed in CK (SMD: - 0.81; CI - 1.52 to - 0.10; P = 0.02).

This meta-analysis demonstrated that the use of low/moderate-intensity statin combination therapy significantly reduced LDL-C levels compared with high-intensity statin monotherapy, making it preferable for patients with related risks. However, further trials are encouraged to evaluate potential adverse effects associated with combined therapy.

Drug Therapy for Acute and Chronic Heart Failure with Preserved Ejection Fraction with Hypertension: A State-of-the-Art Review.

Cardiovascular Drugs

In this comprehensive state-of-the-art review, we provide an evidence-based analysis of current drug therapies for patients with heart failure with...

Digoxin is Not Related to Mortality in Patients with Heart Failure: Results from the SELFIE-TR Registry.

Cardiovascular Drugs

Digoxin has been used in the treatment for heart failure for centuries, but the role of this drug in the modern era is controversial. A particular concern is the recent observational findings suggesting an increase in all-cause mortality with digoxin, although such observations suffer from biased results since these studies usually do not provide adequate compensation for the severity of disease. Using a nationwide registry database, we aimed to investigate whether digoxin is associated with 1-year all-cause mortality in patients with heart failure irrespective of phenotype.

A total of 1014 out of 1054 patients in the registry, of whom 110 patients were on digoxin, were included in the study. Multivariable adjustments were done and propensity scores were calculated for various prognostic indicators, including signs and symptoms of heart failure and functional capacity. Crude mortality, mortality adjusted for covariates, mortality in the propensity score-matched cohort, and Bayesian factors (BFs) were analyzed.

Crude 1-year mortality rate did not differ between patients on and off digoxin (17.3% vs 20.1%, log-rank p = 0.46), and digoxin was not related to mortality following multivariable adjustment (hazard ratio 0.87, 95% confidence interval 0.539-1.402, p = 0.57). Similarly, all-cause mortality was similar in 220 propensity-score adjusted patients (17.3% vs 20.0%, log-rank p = 0.55). On Bayesian analyses, there was moderate to strong evidence suggesting a lack of difference between in unmatched cohort (BF10 0.091) and weak-to-moderate evidence in the matched cohort (BF10 0.296).

In this nationwide cohort, we did not find any evidence for an increased 1-year mortality in heart failure patients on digoxin.

Treatment Patterns, Outcomes, and Persistence to Newly Started Heart Failure Medications in Patients with Worsening Heart Failure: A Cohort Study from the United States and Germany.

Cardiovascular Drugs

Data are limited regarding guideline-directed medical therapy (GDMT) treatment patterns in patients with worsening heart failure (HF).

We used administrative claims databases in Germany and the USA to conduct a retrospective cohort study of patients with worsening HF. Two cohorts of patients with prevalent HF and a HF hospitalization (HFH) from 2016 to 2019, alive at discharge (N = 75,140 USA; N = 47,003 Germany) were identified. Index date was the first HFH during the study period. One-year HF rehospitalization and mortality rates were calculated and a composite endpoint of both outcomes assessed using Kaplan-Meier estimation. We evaluated HF medication patterns in the 6 months before and after the index date. New users of a HF medication (at discharge/after index HFH) were followed for 1 year to evaluate persistence (no treatment gaps > 2 months) RESULTS: One-year HF rehospitalization rates were 36.2% (USA) and 47.7% (Germany). One year mortality rates were 30.0% (USA) and 23.0% (Germany), and the composite endpoint (mortality/HF rehospitalization) was reached in 55.1 % (USA) and 56.6% (Germany). Kaplan-Meier plots showed the risk for the composite endpoint was high in the early post discharge period. Comparison of patterns pre- and postindex HFH showed some increase in use of mineralocorticoid receptor antagonists (MRAs), angiotensin receptor-neprilysin inhibitor (ARNI), and triple therapy; use of angiotensin-converting enzyme (ACE) inhibitor/ angiotensin receptor blocker (ARB) plus beta-blockers remained constant/slightly declined; < 20% patients received triple therapy (ACE inhibitor/ARB plus beta-blocker plus MRA). A third of patients were new users; 1 year persistence rates were often low.

Morbidity, mortality, and rehospitalization risk is high among patients with worsening HF; uptake and continuation of GDMT is suboptimal.

Advancing Guideline-Directed Medical Therapy in Heart Failure: Overcoming Challenges and Maximizing Benefits.

Cardiovascular Drugs

The delayed titration of guideline-directed drug therapy (GDMT) is a complex event influenced by multiple factors that often result in poor prognos...

Efficacy of Intravenous Iron in Patients with Heart Failure with Reduced Ejection Fraction and Iron Deficiency: A Systematic Review and Meta-Analysis of Randomized Control Trials.

Cardiovascular Drugs

PROSPERO identifier number CRD42023389.

Any RCT evaluating the effect of intravenous iron in patients with HFrEF and ID was eligible for inclusion. A complete search of the EMBASE and PubMed databases was conducted from inception until 15 September 2023. The primary outcome was the composite of the quality of life (QoL) questionnaires, while the secondary outcomes included first heart failure (HF) hospitalizations and all-cause mortality. Data extraction was performed independently by two reviewers. Data were pooled using a random-effects model.

Of the 1035 references, 15 RCTs enrolling 6649 patients were included in this study. Intravenous iron was associated with significant improvement in the composite of QoL (standardized mean difference - 1.36, 95% confidence interval [CI] - 2.24 to - 0.48; p = 0.002), a significant reduction in first HF hospitalizations (hazard ratio [HR] 0.73, 95% CI 0.56-0.95; p = 0.02), and with no change in all-cause mortality (HR 0.90, 95% CI 0.79-1.03; p = 0.12). The certainty of the evidence ranged from moderate to very low.

Intravenous iron is possibly associated with improved QoL and reduced HF hospitalizations, without impacting all-cause mortality. These findings not only support the use of intravenous iron in patients with HFrEF but also emphasize the need for well-designed and executed RCTs with granular outcome reporting and powered sufficiently to address the impact of intravenous iron on mortality in patients with HFrEF and ID.

The Rationale for Using Fixed-Dose Combination Therapy in the Management of Hypertension in Colombia: A Narrative Review.

Cardiovascular Drugs

Hypertension is a major risk factor for cardiovascular disease and the leading cause of death in Colombia. While the rate of hypertension awareness...

Collaborative Approach toward Transplant Candidacy for Obese End-Stage Renal Disease Patients.

American College of Surgeons

An elevated Body Mass Index (BMI) is a major cause of transplant preclusion for patients with End Stage Renal Disease (ESRD). This phenomenon exacerbates existing socioeconomic and racial disparities and increases the economic burden of maintaining patients on dialysis. Metabolic Bariatric Surgery (MBS) in such patients is not widely available. Our center created a collaborative program to undergo weight loss surgery before obtaining a kidney transplant.

We studied the outcomes of these patients post MBS and transplant surgery. One hundred and eighty-three ESRD patients were referred to the bariatric team by the transplant team between Jan 2019 through June 2023. Of these, 36 underwent MBS (20 RYGB, 16 SG), and 10 underwent subsequent transplantation, with another 15 currently waitlisted. Both surgical teams shared resources, including dieticians, social workers, and a common database, for easy transition between teams.

The mean starting BMI for all referrals was 46.4 kg/m2 and was 33.9 kg/m2 at the time of transplant. The average number of hypertension medications decreased from 2.0 (range 2.0 to 4.0) pre-surgery to 1.0 (range 1.0 to 3.0) post-surgery. Similarly, HbA1C levels improved, with pre-operative averages at 6.2 (range 5.4 to 7.6) and postoperative levels at 5.2 (range 4.6 to 5.8) All transplants are currently functioning, with a median creatinine of 1.5 (1.2 - 1.6) mg/dl (GFR 46 (36.3 - 71.0)).

A collaborative approach between bariatric and transplant surgery teams offers a pathway toward transplant for obese ESRD patients, and potentially alleviates existing healthcare disparities. ESRD patients that undergo MBS have unique complications to be aware of. The improvement in comorbidities may lead to superior post-transplant outcomes.