Current Opinion in Cardiology最新文献

Purpose of review: The initial approach to stable supraventricular tachycardia (SVT) in children is either adenosine or vagal maneuvers. While automatic tachycardias do not respond to such an approach, even reentrant arrythmias will fail to terminate with adenosine or vagal maneuvers. Little consensus exists on the ideal second line antiarrhythmic medication for stable SVT. This article reviews the current approach to stable SVT and early pediatric studies using intravenous (i.v.) sotalol.

Recent findings: The development of i.v. sotalol has spawned enthusiasm for a novel antiarrhythmic for refractory reentrant SVT and other automatic atrial tachycardias. Retrospective pediatric multicenter studies have shown an excellent conversion (50-90%) of refractory SVT with a single dose of i.v. sotalol; generally, over 30 min. Cautioned should be exercised using i.v. sotalol in patients with ventricular dysfunction and dose adjustments need to be made based on creatinine clearance. In addition, i.v. sotalol has shown promising early results in slowing the ventricular rate in postoperative junctional ectopic tachycardia faster than i.v. amiodarone.

Summary: Intravenous sotalol has shown promising results in refractory pediatric SVT. Protocol driven dosing with the help of hospital pharmacists should be established before i.v. sotalol is prescribed. Future prospective studies especially in postoperative patients, neonates and patients with congenital heart disease are needed.

Purpose of review: Pulmonary vein stenosis (PVS) is a rare disease with high morbidity and mortality. Prevention of restenosis remains challenging. This review will highlight recent advances in therapy that are beginning to show a survival benefit.

Recent findings: Intervention for multivessel pediatric PVS may be surgical or transcatheter, both with high restenosis rates. At a threshold upstream diameter of 7 mm, the risk of restenosis decreases. Close vigilance and frequent reinterventions, typically transcatheter, are now accepted practice to maintain vein patency and achieve upstream growth. Suppressive agents targeting the exuberant myofibroblastic proliferation characteristic of PVS, specifically sirolimus, delivered locally on the surface of balloons and stents, and as adjunct systemic therapy, have been shown to increase survival and decrease reinterventions. Newer surgical techniques focused on shortening and straightening the vein to optimize flow dynamics, coupled with hybrid intraoperative stent placement in selected cases, also show a survival benefit.Adult-onset PVS, most commonly a complication of pulmonary vein isolation, now occurs rarely, and generally responds to transcatheter intervention. Further advances in ablation techniques aim to eliminate this complication.

Summary: An aggressive approach of frequent reinterventions is a necessary strategy rather than treatment failure. More granular understanding of the mechanisms underlying PVS leading to novel muti-pronged anatomic and suppressive therapy are yielding improved survival.Multispecialty PVS teams at the institutional level and multiinstitutional collaboration, now possible via the PVS registry, are crucial to optimal care and future progress.

Purpose of review: Both long QT and Brugada syndrome are inherited arrhythmic conditions that can predispose patients to life-threatening ventricular arrhythmias. Managing the anesthesia for patients with either long QT or Brugada syndrome necessitates an understanding of potential drug-drug interactions with the underlying channelopathy. This review illustrates contemporary insight into managing such patients for the anesthesiologist.

Recent findings: Long QT, due to disorder of potassium or sodium ion channels, is associated with prolonged repolarization of the action potential phase. Medications that prolong the action potential should be avoided. In patients with long QT syndrome, each drug administered should be carefully reviewed to be certain it does not prolong the QT interval. Brugada syndrome is a result of a pathogenic sodium channel that results in potential ventricular arrhythmias. Medications that exacerbate the electrocardiographic changes of Brugada should be avoided.

Summary: Anesthesiologists need to be aware of proper management in children with known or suspected long QT or Brugada pathologies as well as the potential poly-pharmaceutical impact that exists on cardiac ion channels.

Purpose of review: Hypertension is a common comorbidity in patients with advanced chronic kidney disease (CKD) and end-stage kidney disease (ESKD) on dialysis, contributing significantly to cardiovascular disease and increased mortality. Managing hypertension in this population is complex due to the frequent occurrence of resistant hypertension. This review highlights the recent updates in hypertension management for these patients, especially considering new guidelines and therapeutic options.

Recent findings: Recent literature emphasizes updated KDIGO guidelines, which have lowered blood pressure targets to decrease cardiovascular risks in patients with advanced CKD and ESKD. First-line therapies include diuretics, angiotensin converting enzyme inhibitors, and angiotensin II receptor blockers. New pharmacological treatments, such as sodium-glucose cotransporter-2 (SGLT2) inhibitors, endothelin receptor antagonists, RNA interference therapeutics, and aldosterone synthase inhibitors, offer promising options for resistant hypertension. Additionally, lifestyle modifications, including a low-salt diet and aerobic exercise, and volume control through ultrafiltration in dialysis patients, are crucial for blood pressure management.

Summary: The findings suggest that individualized treatment strategies, incorporating both pharmacologic and nonpharmacologic approaches, are essential for optimizing blood pressure control in patients with advanced CKD and ESKD. These strategies can improve cardiovascular outcomes and enhance patient quality of life, with important implications for clinical practice.

Purpose of review: The increasing prevalence of hypertension, alongside the growing use of glucagon-like peptide-1 receptor agonists (GLP-1 RAs) for conditions beyond type 2 diabetes, underscores the need for understanding if there is a role for these medications in blood pressure management. This review addresses the timely opportunity to assess how GLP-1 RAs could influence blood pressure control, potentially broadening therapeutic strategies for cardiovascular risk management.

Recent findings: Emerging literature indicates that GLP-1 RAs influence blood pressure through various mechanisms, such as sympathetic nervous modulation, vasodilation, and diuretic effects. Clinical trials demonstrate modest yet statistically significant reductions in systolic blood pressure (SBP), with less consistent effects on diastolic blood pressure (DBP). The advent of dual GLP-1 and glucose-dependent insulinotropic polypeptide (GIP) receptor agonists presents enhanced possibilities for managing hypertension.

Summary: The implications of these findings suggest that GLP-1 RAs have potential as adjunctive therapies for hypertension, especially in patients already receiving these agents for other cardiometabolic conditions. The blood pressure-lowering effects, often independent of weight loss or glucose control, warrant further investigation to determine their precise role within hypertension treatment algorithms and encourage integration into clinical practice.

Purpose of review: To provide a comprehensive review of hypertension among patients with atherosclerotic vascular disease. Although there is significant alignment in treatment goals and strategies, blood pressure targets and therapies differ among atherosclerosis in varying vascular territories. Hypertension is a prominent risk factor for the development and amplification of atherosclerosis, as well as the cause of significant downstream morbidity and mortality.

Recent findings: Hypertension is the greatest contributor to population attributable cardiovascular risk. Hypertension accelerates the development of atherosclerotic cardiovascular disease (ASCVD), and treatment of hypertension is a central tenet to managing ASCVD. Patients with ASCVD often merit a multidisciplinary approach, require multiple specialists and medications, and may suffer from additional consequences of therapy due to multimorbidity. Significant arterial stenoses may lead to unintended consequences of antihypertensive therapy. Further, there have been recent advances in the interventional management of hypertension, including techniques like renal denervation.

Summary: In recent years, there have been significant changes in management guidelines of hypertension and peripheral arterial disease, new evidence in coronary artery disease, and simultaneously there's been an evolution in interventional management of hypertension, such as renal denervation. We provide an update on hypertension treatment in atherosclerotic disease among different vascular beds.

Purpose of review: The use of androgenic anabolic steroids (AAS) is rising, particularly among recreational athletes. This review addresses growing concerns about the underrecognized cardiovascular and multiorgan consequences of chronic AAS exposure with a focus on noncompetitive populations.

Recent findings: It is well documented that AAS use enhances muscle mass and strength, but at the cost of multisystem toxicity including endocrine disruption, hepatotoxicity, and mood disorders. Emerging evidence highlights the profound cardiovascular impact of AAS use, including elevated blood pressure, adverse lipid profiles, accelerated atherosclerosis, subclinical cardiomyopathy, and increased risk of myocardial infarction and sudden cardiac death. Structural and functional cardiac abnormalities such as left ventricular hypertrophy, ventricular dysfunction, and arterial stiffness have been reported, with some changes persisting after cessation.

Summary: AAS use carries multisystem risks with evidence for adverse cardiovascular remodeling and atherogenesis. Clinicians caring for athletes using AAS should recognize patterns of AAS use and provide risk stratification, monitoring, and tapering strategies. Future research should prioritize long-term outcomes, sex-specific effects, and multidisciplinary approaches to care.

Purpose of review: Hypertension and chronic kidney diseases (CKDs) are known risk factors for the development or worsening of heart failure. In last years, several new therapeutic approaches for the management of people with diabetic and nondiabetic CKD and hypertension have been investigated. In this brief review, the most recent findings regarding the ability of SGLT-2 inhibitors and nonsteroidal mineralocorticoid receptor antagonists (nsMRA) and GLP-1 receptor agonists to prevent heart failure in patients with hypertension and CKD will be discussed.

Recent findings: In the last 3 years, several large clinical trials involving very large numbers of CKD patients have been published showing that these new therapeutic approaches significantly reduce the risk of heart failure events and hospitalizations in patients with diabetic and nondiabetic nephropathies and hypertension as well as in patients with heart failure without nephropathy. Moreover, these drugs retard the progression of CKD towards end-stage kidney disease.

Summary: These observations already have a major impact on the management of people with hypertension and CKD. SGLT-2 inhibitors are now recommended as first-line therapy in people with diabetes, CKD and heart failure. The use of nsMRA is increasing and could replace spironolactone over time in heart failure as well as in early CKD stages.

Purpose of review: This review highlights the diverse cardiac manifestations of LMNA mutations, focusing on their underlying molecular mechanisms and clinical implications. As LMNA mutations are implicated in cardiomyopathies, such as dilated cardiomyopathy (DCM), arrhythmogenic cardiomyopathy (ARVC), and conduction system diseases, understanding these phenotypes is critical for advancing diagnosis and management strategies.

Recent findings: Recent studies reveal that LMNA mutations disrupt nuclear envelope stability, activating the DNA damage response (DDR) and compromising chromatin organization and mechanotransduction. Mouse models have elucidated pathways linking LMNA dysfunction to fibrosis, arrhythmias, and myocardial remodeling. Emerging evidence demonstrates that fibroblasts play a crucial role in cardiac phenotypes. Advances in genetic screening have also underscored the importance of early identification and risk stratification, particularly for arrhythmias and sudden cardiac death.

Summary: The diverse spectrum of LMNA-related cardiac phenotypes, from isolated conduction defects to severe DCM and ARVC, underscores the necessity of personalized care strategies. Bridging insights from molecular studies and clinical research paves the way for targeted therapies to slow disease progression and improve patient outcomes. Future efforts should prioritize translational research on molecular mechanisms with potential in mouse models, alongside a deeper exploration of genotype-phenotype correlations, to refine and implement effective therapeutic interventions.

Purpose of review: Patients with chronic kidney disease and diabetes are at high risk of cardiovascular disease, including heart failure. Risk mitigation requires a comprehensive approach with lifestyle modifications, blood pressure management, renin-angiotensin blockade, and sodium-glucose cotransporter 2 inhibitors. Recent trials have shown that nonsteroidal mineralocorticoid receptor antagonists (ns-MRA) and glucagon-like peptide 1 receptor agonists (GLP-1 RA) should also be components of this approach. This review will discuss the comprehensive approach to mitigating risk in these high-risk patients and highlight the recent trials of ns-MRAs and GLP-1 RA.

Recent findings: In recent years, large, randomized controlled trials of ns-MRA and GLP-1 RA have shown benefit in kidney and cardiovascular outcomes for patients with chronic kidney disease and diabetes.

Summary: The substantial benefits and overall favorable safety profiles for ns-MRA and GLP-1 RA in patients with chronic kidney disease and diabetes demonstrate that these medications should be considered as a part of a comprehensive approach to cardiovascular risk reduction in this high-risk population. Future studies should consider different combination therapies and guide how and when to initiate these therapies.