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1.
Expert Opin Pharmacother ; : 1-20, 2024 Sep 09.
Artículo en Inglés | MEDLINE | ID: mdl-39225514

RESUMEN

INTRODUCTION: Hypertensive disorders of pregnancy affect approximately one in 10 pregnancies and are associated with increased risk of adverse fetal, neonatal and maternal outcomes. There is strong evidence that effective treatment of hypertension (blood pressure ≥ 140/90 mmHg), and enhanced monitoring throughout pregnancy reduces these risks. AREAS COVERED: This article provides a contemporaneous review of treatment of hypertension in pregnancy with antihypertensive agents. We completed a systematic search and review of all meta-analyses and systematic reviews of studies comparing antihypertensives for treatment of pregnancy hypertension in the last five years. We provide a clinically focused summary of when to treat hypertension in pregnancy and which antihypertensive agents can be offered. Special scenarios reviewed include treatment-resistant hypertension and pre-pregnancy antihypertensive optimization. EXPERT OPINION: Several antihypertensives are considered safe and are known to be effective for treatment of hypertension in pregnancy. Given the current uncertainty as to which antihypertensive(s) are superior for treatment of hypertension in pregnancy, women should be counselled and offered a range of antihypertensive options in keeping with evidence on clinical effectiveness, local context and availability of antihypertensive(s), potential side effect profile, and women's preference. Further research is required to help guide clinical decision making, and move toward personalized treatment.

2.
Clin Imaging ; 115: 110283, 2024 Sep 10.
Artículo en Inglés | MEDLINE | ID: mdl-39278042

RESUMEN

PURPOSE: Favorable clinical outcomes have been reported with the adjunct use of beta-blockers in cancer treatment, hypothetically secondary to their anti-angiogenic/anti-proliferative effects. Hereby, we investigate whether there is synergy between beta-blockers and TACE in the treatment of HCC. METHODS: 36 HCC patients on beta-blockers (mean dose of 48 mg daily) at the time of first-line treatment with TACE at our institution were retrospectively identified out of a cohort of 221 patients between 2008 and 2019. Using propensity scoring, a matched cohort of 36 patients not exposed to beta-blockers was generated based on age, gender, ethnicity, etiology of liver disease, BCLC, child Pugh score, PS/ECOG, cirrhosis, largest mass treated, type of TACE and treated liver segments. Tumor response was assessed at 1st and 2nd post-TACE imaging timepoints (1.4 and 4.1 months on average respectively). Variables were compared using chi-square test and Student's t-test. Kaplan-Meier transplant-free survival plots were generated using IBM® SPSS® software. Cox regression analysis was used to evaluate survival predictors. A p values < 0.05 was considered significant. RESULTS: Comparing the control and beta-blocker cohorts, there were no differences in baseline characteristics, post-TACE imaging timepoints, tumor response or transplant free survival (p > 0.05). Tumor size was found to be a predictor of survival when the two cohorts were combined (p = 0.03). CONCLUSION: Transplant-free survival and HCC response to first-line TACE treatment were similar in the control and beta-blocker groups. Large tumor sizes were associated with higher mortality in combined analysis of the cohorts.

3.
J Affect Disord ; 368: 90-99, 2024 Sep 11.
Artículo en Inglés | MEDLINE | ID: mdl-39271062

RESUMEN

BACKGROUND: Beta-blocker prescriptions for patients with anxiety increased substantially between 2003 and 2018, yet there is no clinical guidance concerning their use. A previous review of propranolol - a beta-blocker - in the treatment of anxiety concluded there was insufficient evidence to support its use. Additional data have been published in the eight years since that review including some evidence for other beta-blockers. We aimed to synthesise all available data on the effectiveness of beta-blockers in the treatment of anxiety disorders in adults. METHODS: We searched Medline, Embase, PsycINFO, Web of Science, and Trial Registries (September 2023), including randomised controlled trials (RCT), non-randomised control group comparative studies and cross-over trials reporting self- or clinician-reported anxiety symptoms. Study quality was assessed using Cochrane's Risk of Bias tool, with meta-analyses conducted by comparator group using random-effects models. RESULTS: Searches produced 3068 records, with 10 studies included, of which five were included in meta-analyses (n = 179). There was no evidence for a beneficial effect of beta-blockers compared with either placebo or benzodiazepines in patients with social phobia or panic disorder with/without agoraphobia (p-value for all meta-analyses ≥0.54). LIMITATIONS: Many of the included studies had small sample sizes, missing data and high or unclear risk of bias. CONCLUSION: Beta-blockers are increasingly prescribed for anxiety, yet there is a lack of robust evidence of effectiveness. There is a need to understand when and why practitioners are using these drugs, and to undertake a large RCT to provide definitive evidence of whether beta-blockers are an effective and safe treatment for anxiety.

4.
Eur J Prev Cardiol ; 2024 Sep 20.
Artículo en Inglés | MEDLINE | ID: mdl-39298680

RESUMEN

AIM: The 2023 ESC guidelines for acute coronary syndrome note that contemporary data are heterogenous regarding beta-blockers (BB) use post-myocardial infarction (MI) in patients without reduced ejection fraction (EF) or heart failure (HF). We aimed to address the heterogeneity in contemporary data around BB post-MI in this population. METHODS: We searched 6 databases from Jan 1, 2000 to Sep 1, 2024 to identify contemporary studies enrolling MI patients without reduced EF (≤40%) or history of HF receiving BB at index MI, and comparing outcomes between BB users and non-users. The primary outcome was all-cause mortality. Secondary outcomes included major adverse cardiac and cerebrovascular events (MACCE) and cardiovascular (CV) mortality. Random-effects meta-analysis was conducted using the restricted maximum likelihood method. RESULTS: There were 24 studies including 290,349 patients enrolled in the contemporary era. Overall, BB use was associated with a significant 11% reduction in all-cause mortality (HR, 0.89; 95% CI, 0.81 to 0.97; I2 = 40%; Figure 1), however with moderate-to-high statistical heterogeneity. Prespecified subgroup analyses demonstrate comparable all-cause mortality (HR, 0.99; 95% CI, 0.94 to 1.06; I2 = 0%), CV mortality (HR, 0.99; 95% CI, 0.85 to 1.15; I2 = 0%), and MACCE (HR, 1.24; 95% CI, 1.01 to 1.52; I2 = 0%) in patients with a 1-year event-free period, defined as no death, recurrent MI, or HF while on BB following index MI. In patients with no event-free period, meta-regression revealed that BB mortality benefits were modified by the study inclusion period (P = 0.01), reflecting a temporal trend of decreasing BB mortality benefits over time. Based on the temporal trend, in patients with preserved EF post-2010, BB exhibited no reduction in all-cause mortality (HR, 0.97; 95% CI, 0.90 to 1.04; I2 = 0%), but a non-significant trend towards increased CV mortality (HR, 1.29; 95% CI, 0.96 to 1.72; I2 = 0%) and a significant increase in MACCE (HR, 1.24; 95% CI, 1.01 to 1.52; I2 = 0%). CONCLUSION: In the contemporary reperfusion era, BB may not confer additional mortality benefits beyond a 1-year event-free period post-MI in patients without reduced EF. Moreover, post-MI BB use was associated with detrimental effects in patients with preserved EF.


Our study aimed to synthesize current evidence around post-myocardial infarction (MI) beta-blocker (BB) use in patients without reduced ejection fraction (EF) or heart failure (HF). We reveal that the mortality benefits of BB are modified by 3 factors, namely an event-free period, study inclusion period, and EF.In patients on BB post-MI with 1 year free of death, recurrent MI, or HF, there may not be additional mortality benefit to continuing the BB.For patients included after 2010, BB did not offer mortality benefits and may even be harmful in those with preserved EF.In contrast to those with preserved EF, patients with mildly reduced EF derive mortality benefits from BB.

5.
Endocrine ; 2024 Sep 13.
Artículo en Inglés | MEDLINE | ID: mdl-39269577

RESUMEN

PURPOSE: Although anti-hypertensive medications, including thiazides and ß-blockers (BBs) in particular, have been suggested to cause erectile dysfunction (ED) their real contribution is still conflicting. The aim of this paper is to summarize available evidence providing an evidence-based critical analysis of the topic. METHODS: An overall comprehensive narrative review was performed using Medline, Embase and Cochrane search. In addition, to better understand the impact of BBs on ED a specific systematic review was also performed. RESULTS: The negative role of centrally acting drugs, such as clonidine and α-methyldopa, is well documented althuogh limited controlled trials are available. Angiotensin-converting enzyme inhibitors (ACEis), angiotensin receptor blockers (ARBs), and calcium-channel-blockers (CCBs) have neutral (CCBs) or even positive (ACEis and ARBs) effects on erectile function. Despite some preliminary negative reports, more recent evidence does not confirm the negative impact of thiazides. BBs should be still considered the class of medications more often associated with ED, although better outcomes can be drawn with nebivolol. CONCLUSION: Sexual function should be assessed in all patients with arterial hypertension, either at diagnosis or after the prescription of specific medications. A close related patient-physician interaction and discussion can overcome possible negative outcomes allowing a successful management of possible side effects.

7.
Front Endocrinol (Lausanne) ; 15: 1411343, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-39184138

RESUMEN

Background: Depression ranks as a leading contributor to the global disease burden. The potential causal relationship between the use of antihypertensive medications and depression has garnered significant interest. Despite extensive investigation, the nature of this relationship remains a subject of ongoing debate. Therefore, this study aims to evaluate the influence of antihypertensive medications on depression by conducting a Mendelian randomization study focused on drug targets. Method: We focused on the targets of five antihypertensive drug categories: ACE Inhibitors (ACEIs), Angiotensin II Receptor Antagonists (ARBs), Calcium Channel Blockers (CCBs), Beta-Blockers (BBs), and Thiazide Diuretics (TDs). We collected single-nucleotide polymorphisms (SNPs) associated with these drug targets from genome-wide association study (GWAS) statistics, using them as proxies for the drugs. Subsequently, we conducted a Mendelian randomization (MR) analysis targeting these drugs to explore their potential impact on depression. Results: Our findings revealed that genetic proxies for Beta-Blockers (BBs) were associated with an elevated risk of depression (OR [95%CI] = 1.027 [1.013, 1.040], p < 0.001). Similarly, genetic proxies for Calcium Channel Blockers (CCBs) were linked to an increased risk of depression (OR [95%CI] = 1.030 [1.009, 1.051], p = 0.006). No significant associations were identified between the genetic markers of other antihypertensive medications and depression risk. Conclusion: The study suggests that genetic proxies associated with Beta-Blockers (BBs) and Calcium Channel Blockers (CCBs) could potentially elevate the risk of depression among patients. These findings underscore the importance of considering genetic predispositions when prescribing these medications, offering a strategic approach to preventing depression in susceptible individuals.


Asunto(s)
Antihipertensivos , Depresión , Estudio de Asociación del Genoma Completo , Análisis de la Aleatorización Mendeliana , Polimorfismo de Nucleótido Simple , Humanos , Antihipertensivos/uso terapéutico , Antihipertensivos/efectos adversos , Depresión/genética , Depresión/tratamiento farmacológico , Hipertensión/tratamiento farmacológico , Hipertensión/genética , Bloqueadores de los Canales de Calcio/uso terapéutico , Bloqueadores de los Canales de Calcio/efectos adversos , Inhibidores de la Enzima Convertidora de Angiotensina/efectos adversos , Inhibidores de la Enzima Convertidora de Angiotensina/uso terapéutico , Antagonistas Adrenérgicos beta/uso terapéutico , Antagonistas Adrenérgicos beta/efectos adversos , Antagonistas de Receptores de Angiotensina/efectos adversos , Antagonistas de Receptores de Angiotensina/uso terapéutico , Inhibidores de los Simportadores del Cloruro de Sodio/efectos adversos , Inhibidores de los Simportadores del Cloruro de Sodio/uso terapéutico
8.
Artículo en Inglés | MEDLINE | ID: mdl-39209198

RESUMEN

BACKGROUND & AIMS: Non-selective beta-blockers (NSBB) can lower the risk of first decompensation in patients with cirrhosis and clinically significant portal hypertension (CSPH) (identified by a hepatic venous pressure gradient ≥10 mmHg) with active etiology. Our aim was to examine the effect of NSBB on first decompensation occurrence in patients with cirrhosis and enduring CSPH after etiological treatment. METHODS: Patients with compensated cirrhosis and clinical evidence of CSPH (gastroesophageal varices -GEV- and/or spontaneous portosystemic collaterals- SPSS) after two years from etiological treatment. Primary endpoint was first decompensation (occurrence of variceal bleeding, ascites, or hepatic encephalopathy) in patients on-NSBB vs. off-NSBB. RESULTS: Final cohort included 406 patients. Baseline characteristics of patients on-NSBB (n=187) and off-NSBB (n=219) were comparable, except for signs of PH that were more pronounced in the on-NSBB group. During a mean follow-up of 32 months, 127 (31%) patients decompensated, with ascites being the most common (77%) decompensating event. Decompensation rates were lower in patients on-NSBB (16% vs 44%, p<0,0001). The benefit of NSBB on decompensation was maintained in patients with small GEV (17% vs 43%, p<0,0001), in those with SPSS only (8% vs 43%, p=0,003) and in each different etiology, including HCV-cured cirrhosis (9% vs 32%, p<0,0001). At Cox regression analysis, Hemoglobin, Child-Pugh, MELD-Na, diabetes at baseline and previous bacterial infections were independent predictors of decompensation, while NSBB-use had a protective effect (HR 0,32, 95% CI 0,20-0,49; p<0,0001). NSBB-use significantly reduced bacterial infection rates (HR 0,36, 95% CI 0,22-0,58; p<0,0001). CONCLUSION: NSBB decrease the risk of first decompensation in patients with cirrhosis and enduring CSPH after etiological treatment.

9.
Heart Fail Rev ; 2024 Aug 12.
Artículo en Inglés | MEDLINE | ID: mdl-39134780

RESUMEN

Congenital heart disease (CHD) is the most common global congenital defect affecting over 2.4 million individuals in the United States. Ongoing medical and surgical advancements have improved the survival of children with CHD leading to a shift where, as of 2010, adults constitute two-thirds of the CHD patient population. The increasing number and aging of adult congenital heart disease (ACHD) patients present a clinical challenge due to heightened complexity, morbidity, and mortality. Studies indicate that 1 in 13 ACHD patients will develop heart failure (HF) in their lifetime. ACHD-HF patients experience more frequent emergency department visits, higher hospitalization rates, longer hospital stays, and higher mortality compared to non-ACHD patients with heart failure (non-ACHD-HF). Despite HF being the leading cause of death in ACHD patients, there is a notable gap in evidence regarding treatment. While guideline-directed medical therapy (GDMT) has been extensively studied in non-ACHD-HF, research specific to ACHD-HF individuals is limited. This article aims to comprehensively review available literature addressing the pharmacological treatment of ACHD-HF.

10.
Rev Med Interne ; 2024 Aug 06.
Artículo en Inglés | MEDLINE | ID: mdl-39112316

RESUMEN

INTRODUCTION: Contrasting with the lymphopenia classically reported after administration of glucocorticoids, a lymphocytosis has been sometimes observed in patients after glucocorticoid administration. We here determine prospectively the timing and magnitude of methylprednisolone (mPDN)-induced lymphocytosis and study the effects of concomitant propranolol administration on lymphocyte count (Ly). METHODS: Ly was measured before and 24 to 72hours after initiating mPDN treatment in 20 patients with immune-mediated inflammatory disorders (IMID). After one week, patients with increased Ly were divided in two groups receiving, in addition to mPDN, either propranolol or a placebo; Ly was determined 4 days later. Lymphocyte subpopulations and mPDN plasma levels were determined in subsets of the patients. Values are expressed as median with 25%-75% interquartile range. RESULTS: A 73.4% (37-305) increase of Ly was observed in 18/20 patients as soon as 48 (48-72) hours after initiating mPDN (32mg; 16-32). Lymphocytosis (Ly≥4000/µL) was observed in 7 patients and hyperlymphocytosis (Ly≥5000/µL) in 4 of them. The increase in Ly was noted both for B and T cells. Median mPDN plasma levels (n=13) were 97.4ng/mL (IQR 67-489) and 3.2 (IQR 2.1-5.1) respectively 8hours and 24hours after oral mPDN administration. No significant change in Ly was shown under propranolol (p=0.570). CONCLUSION: A morning lymphocytosis observed during mPDN treatment occurs in the very first days of mPDN administration. Our results do not support the hypothesis of an increased adrenergic tone responsible for this phenomenon. Identifying this unexpected etiology of lymphocytosis could mitigate the need for unnecessary supplementary investigations in clinical practice.

11.
Artículo en Inglés | MEDLINE | ID: mdl-39102075

RESUMEN

This study aimed to evaluate the impact of acute intravenous beta-blocker administration on myocardial blood flow (MBF) during same-day hybrid coronary computed tomography angiography (CCTA) and 13N-ammonia positron emission tomography (PET) myocardial perfusion imaging (MPI). Previous research on the discontinuation of oral beta-blockers before MPI has shown mixed results, with no studies yet exploring the acute intravenous administration in the context of same-day hybrid imaging. This retrospective study included patients with suspected chronic coronary syndromes undergoing same-day hybrid CCTA/13N-ammonia PET MPI. Exclusion criteria comprised coronary artery stenosis ≥ 50% or regional perfusion abnormalities on PET, and baseline oral beta-blocker medication. Intravenous metoprolol (up to 30 mg) was administered as needed for heart rate control before CCTA. MBF measurements were obtained at rest (rMBF) and during stress (sMBF), and myocardial flow reserve (MFR) was calculated. After excluding 281 patients, 154 were eligible for propensity-score matching, resulting in 108 patients divided into two equal groups based on beta-blocker administration. The groups showed no significant differences in baseline characteristics. Among those who received beta-blockers, there was a significant decrease in sMBF (2.21 [IQR 1.72-2.78] versus 2.46 [2.08-2.99] ml∙min-1∙g-1, p = 0.027) and MFR (3.46 [2.70-4.05] versus 3.79 [3.22-4.46], p = 0.030), respectively, compared to those who did not receive beta-blockers. In contrast, rMBF remained unaffected (0.65 [0.54-0.78] versus 0.64 [0.55-0.76] ml∙min-1∙g-1, p = 0.931). Acute intravenous beta-blocker administration significantly impacts MBF, leading to a slight reduction in sMBF and MFR. In contrast, rMBF appears unaffected, suggesting that beta-blockers primarily affect the coronary capacity to respond to vasodilators.

12.
Int J Mol Sci ; 25(15)2024 Jul 24.
Artículo en Inglés | MEDLINE | ID: mdl-39125627

RESUMEN

The autonomic nervous system plays a key role in maintaining body hemostasis through both the sympathetic and parasympathetic nervous systems. Sympathetic overstimulation as a reflex to multiple pathologies, such as septic shock, brain injury, cardiogenic shock, and cardiac arrest, could be harmful and lead to autonomic and immunologic dysfunction. The continuous stimulation of the beta receptors on immune cells has an inhibitory effect on these cells and may lead to immunologic dysfunction through enhancing the production of anti-inflammatory cytokines, such as interleukin-10 (IL-10), and inhibiting the production of pro-inflammatory factors, such as interleukin-1B IL-1B and tissue necrotizing factor-alpha (TNF-alpha). Sympathetic overstimulation-induced autonomic dysfunction may also happen due to adrenergic receptor insensitivity or downregulation. Administering anti-adrenergic medication, such as beta-blockers, is a promising treatment to compensate against the undesired effects of adrenergic surge. Despite many misconceptions about beta-blockers, beta-blockers have shown a promising effect in decreasing mortality in patients with critical illness. In this review, we summarize the recently published articles that have discussed using beta-blockers as a promising treatment to decrease mortality in critically ill patients, such as patients with septic shock, traumatic brain injury, cardiogenic shock, acute decompensated heart failure, and electrical storm. We also discuss the potential pathophysiology of beta-blockers in various types of critical illness. More clinical trials are encouraged to evaluate the safety and effectiveness of beta-blockers in improving mortality among critically ill patients.


Asunto(s)
Antagonistas Adrenérgicos beta , Sistema Nervioso Autónomo , Enfermedad Crítica , Humanos , Antagonistas Adrenérgicos beta/uso terapéutico , Antagonistas Adrenérgicos beta/farmacología , Sistema Nervioso Autónomo/efectos de los fármacos , Animales , Choque Séptico/tratamiento farmacológico , Choque Séptico/inmunología
13.
World J Nucl Med ; 23(3): 191-198, 2024 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-39170841

RESUMEN

Background Regarding the less-known effects of beta-blocker consumption on the diagnostic value of the myocardial perfusion scan with dipyridamole stress in coronary artery disease (CAD), we aimed to compare the findings of the scans done on the beta-blocker consumption course and after discontinuation of this medications. Materials and Methods Thirty patients with probably CAD and abnormal myocardial perfusion scans (presence of reversible defect), who had been treated with beta-blockers for at least 3 months, were studied. Dipyridamole stress phase of myocardial perfusion single-photon emission computed tomography (SPECT) was performed two times with an interval of about 1 week, once after discontinuation of all antianginal and anti-ischemic medications, statins, and beta-blockers for 72 hours prior to the study, and again after discontinuation of all these medications except for beta-blockers. Imaging was done with the same protocol, radiopharmaceutical dose, and imaging parameters. Summed stress score (SSS), summed stress rest, and summed difference scores (SDS), total perfusion deficit (TPD), severity, and extension of myocardial perfusion defects in three coronary artery territories were analyzed, using quantitative perfusion SPECT software. Results Most variables such as SSS, SDS, TPD, severity, and extension of defects showed a significant difference between the two conditions including beta-blocker consumption and after discontinuing beta-blocker consumption before stress imaging ( p < 0.05). Moreover, in patients on treatment with metoprolol, all studied factors including SSS, SDS, TPD, severity, and extension of perfusion defects were significantly reduced when patients consumed beta-blockers before SPECT evaluation ( p < 0.05). Conclusion Beta-blocker consumption can lead to a decrease in the severity and extent of myocardial perfusion defects and therefore probably a decrease in the sensitivity of myocardial scans. Discontinuation of beta-blocker prior to the dipyridamole myocardial perfusion scan can improve diagnostic accuracy.

14.
Heart Fail Clin ; 20(4): 373-386, 2024 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-39216923

RESUMEN

The conventional sequence of guideline-directed medical therapy (GDMT) initiation in heart failure with reduced ejection fraction (HFrEF) assumes that the effectiveness and tolerability of GDMT agents mirror their order of discovery, which is not true. In this review, the authors discuss flexible GDMT sequencing that should be permitted in special populations, such as patients with bradycardia, chronic kidney disease, or atrial fibrillation. Moreover, the initiation of certain GDMT medications may enable tolerance of other GDMT medications. Most importantly, the achievement of partial doses of all four pillars of GDMT is better than achievement of target dosing of only a couple.


Asunto(s)
Insuficiencia Cardíaca , Volumen Sistólico , Humanos , Insuficiencia Cardíaca/tratamiento farmacológico , Insuficiencia Cardíaca/fisiopatología , Volumen Sistólico/efectos de los fármacos , Quimioterapia Combinada , Antagonistas de Receptores de Angiotensina/uso terapéutico , Inhibidores de la Enzima Convertidora de Angiotensina/uso terapéutico
16.
Cardiol Res ; 15(4): 281-297, 2024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-39205958

RESUMEN

Background: Non-ischemic dilated cardiomyopathy (NIDCM) is a form of heart failure with a poor prognosis and unclear optimal management. The aim of the study was to systematically review the literature and assess the efficacy and safety of beta-blockers and angiotensin-converting enzyme (ACE) inhibitors in the management of chronic heart failure secondary to NIDCM and explore their putative mechanisms of action. Methods: Studies from 1990 to 2023 were reviewed using PubMed and EMBASE, focusing on their effects on left ventricular ejection fraction (LVEF) in NIDCM patients, according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Results: Beta-blockers showed a significant beneficial effect on LVEF improvement in NIDCM, with an overall effect size of Cohen's d = 1.30, 95% confidence interval (CI) (0.76, 1.84), high heterogeneity (Tau2 = 0.90; Chi2 = 162.05, df = 13, P < 0.00001; I2 = 92%), and a significant overall effect (Z = 4.72, P < 0.00001). ACE inhibitors also showed a beneficial role, but with less heterogeneity (Tau2 = 0.02; Chi2 = 1.09, df = 1, P = 0.30; I2 = 8%) and a nonsignificant overall effect (Z = 1.36, P = 0.17), 95% CI (-0.24, 1.31). Conclusions: The study highlights the efficacy of carvedilol in improving LVEF in NIDCM patients over ACE inhibitors, recommends beta-blockers as first-line therapy, and advocates further research on ACE inhibitors.

17.
J Hazard Mater ; 476: 135146, 2024 Sep 05.
Artículo en Inglés | MEDLINE | ID: mdl-38991643

RESUMEN

The pathway for pollutant degradation involving reactive oxygen species (ROS) in the rhizosphere is poorly understood. Herein, a rootchip system was developed to pinpoint the ROS hotspot along the root tip of Iris tectorum. Through mass balance analysis and quenching experiment, we revealed that ROS contributed significantly to rhizodegradation for beta-blockers, ranging from 22.18 % for betaxolol to 83.83 % for atenolol. The identification of degradation products implicated ROS as an important agent to degrade atenolol into less toxic transformation products during phytoremediation. Moreover, an active production of ROS in rhizosphere was identified by mesocosm experiment. Across three root-associated regions aquatic plants inhabiting the rhizosphere accumulated the highest •OH of ∼1200 nM after 3 consecutive days, followed by rhizoplane (∼230 nM) and bulk environment (∼60 nM). ROS production patterns were driven by rhizosphere chemistry (Fe and humic substances) and microbiome variations in different rhizocompartments. These findings not only deepen understanding of ROS production in aquatic plants rhizosphere but also shed light on advancing phytoremediation strategies.


Asunto(s)
Antagonistas Adrenérgicos beta , Biodegradación Ambiental , Especies Reactivas de Oxígeno , Rizosfera , Contaminantes Químicos del Agua , Especies Reactivas de Oxígeno/metabolismo , Antagonistas Adrenérgicos beta/metabolismo , Contaminantes Químicos del Agua/metabolismo , Género Iris/metabolismo , Raíces de Plantas/metabolismo , Microbiota
18.
Eur Heart J Open ; 4(4): oeae054, 2024 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-39011092

RESUMEN

Aims: In patients with advanced heart failure requiring dobutamine infusion, it is usually recommended to initiate beta-blockers after weaning from dobutamine. However, beta-blockers are sometimes initiated under dobutamine infusion in a real-world scenario. The association between such early beta-blocker initiation with clinical outcomes is unknown. Therefore, this study investigates the association between initiating beta-blockers under dobutamine infusion and survival outcomes. Methods and results: This observational study with a multicentre inpatient-care database emulated a pragmatic randomized controlled trial (RCT) of the beta-blocker initiation strategy. First, 1151 patients on dobutamine and not on beta-blockers on the day of heart failure admission (Day 0) were identified. Among 1095 who met eligibility criteria, patients who were eventually initiated beta-blockers under dobutamine infusion by Day 7 (early initiation strategy) were 1:1 matched to those who were not initiated (conservative strategy). The methods of cloning, censoring, and weighting were applied to emulate the target trial. Patients were followed up for up to 30 days. The primary outcome was all-cause death. Among 780 matched patients (median age, 81 years), the adjusted hazard ratio was 1.11 (95% confidence interval 0.75-1.64, P = 0.59) for the early initiation strategy. The estimated 30-day all-cause mortalities in the early initiation strategy and the conservative strategy were 19.3% (10.6-30.7) and 16.2% (9.2-25.3), respectively. The results were consistent when we used different days to determine strategies (i.e. 5 and 9) instead of 7 days. Conclusion: The present observational study emulating a pragmatic RCT found no positive or negative association between beta-blocker initiation under dobutamine infusion and overall survival.

19.
ESC Heart Fail ; 2024 Jul 17.
Artículo en Inglés | MEDLINE | ID: mdl-39015043

RESUMEN

AIMS: Both patients with heart failure (HF) with reduced ejection fraction (HFrEF) and those with HF with preserved ejection fraction (HFpEF) present with elevated N-terminal pro-brain natriuretic peptide (NT-proBNP) and have multiple comorbidities; consequently, the prognostic effect of NT-proBNP according to beta-blocker (BB) use is unknown. METHODS: This retrospective study evaluated patients admitted for acute HF between January 2012 and December 2017 at Ulsan University Hospital. Clinical, echocardiographic, laboratory and drug prescription data, including BB data, were collected from the hospital database. Information on mortality was collected by reviewing medical records or using national death data. RESULTS: Of the 472 patients evaluated, 216 (45.8%) and 256 (54.2%) patients were and were not prescribed BB at discharge, respectively. A total of 224 (47.5%) patients died within a median follow-up duration of 44 months. The Kaplan-Meier analysis showed reduced all-cause mortality with BB in HFrEF (ejection fraction ≤ 40%) but not in HFpEF (ejection fraction > 40%). In the multivariate Cox regression analysis, transmitral to tissue Doppler imaging, early diastolic velocity ratio (E/E'), NT-proBNP and BB use were independent predictors of all-cause mortality in HFrEF. Meanwhile, haemoglobin and NT-proBNP levels were independent predictors of HFpEF. The NT-proBNP cut-off value for determining all-cause mortality was set to 4800 pg/mL. Among HFrEF patients with NT-proBNP < 4800 pg/mL, the survival rate was higher for patients with BB use than those with no BB use (log-rank P < 0.001). However, in the HFpEF group, the survival rate associated with BB use did not differ according to the NT-proBNP levels. Both HFrEF and HFpEF patients with NT-proBNP levels of ≥4800 pg/mL presented with multiple comorbidities, including lower body mass index and haemoglobin levels and higher creatinine levels, NT-proBNP levels and E/E'. CONCLUSION: In patients with acute HF, BB use is associated with reduced all-cause mortality in those with HFrEF but not in those with HFpEF. HFrEF patients with NT-proBNP levels of <4800 pg/mL treated with BB have a higher survival rate than those not treated with BB. However, this benefit is not seen in HFrEF patients with NT-proBNP levels of ≥4800 pg/mL or in all HFpEF patients, regardless of the NT-proBNP level. NT-proBNP levels are elevated in multiple comorbid conditions, and these comorbidities may contribute to the attenuated effects of BB on all-cause mortality.

20.
Clin Mol Hepatol ; 2024 Jul 11.
Artículo en Inglés | MEDLINE | ID: mdl-38988296

RESUMEN

Background & Aims: Non-invasive models stratifying clinically significant portal hypertension (CSPH) are limited. Herein, we developed a new non-invasive model for predicting CSPH in patients with compensated cirrhosis and investigated whether carvedilol can prevent hepatic decompensation in patients with high-risk CSPH stratified using the new model. Methods: Non-invasive risk factors of CSPH were identified via systematic review and meta-analysis of studies involving patients with hepatic venous pressure gradient (HVPG). A new non-invasive model was validated for various performance aspects in three cohorts, i.e., a multicenter HVPG cohort, a follow-up cohort, and a carvedilol-treating cohort. Results: In the meta-analysis with six studies (n = 819), liver stiffness measurement and platelet count were identified as independent risk factors for CSPH and were used to develop the new "CSPH risk" model. In the HVPG cohort (n = 151), the new model accurately predicted CSPH with cutoff values of 0 and -0.68 for ruling in and out CSPH, respectively. In the follow-up cohort (n = 1,102), the cumulative incidences of decompensation events significantly differed using the cutoff values of <-0.68 (low-risk), -0.68 to 0 (medium-risk), and >0 (high-risk). In the carvedilol-treated cohort, patients with high-risk CSPH treated with carvedilol (n = 81) had lower rates of decompensation events than non-selective beta-blockers untreated patients with high-risk CSPH (n = 613 before propensity score matching [PSM], n = 162 after PSM). Conclusions: Treatment with carvedilol significantly reduces the risk of hepatic decompensation in patients with high-risk CSPH stratified by the new model.

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