1,444 results match your criteria: "Onassis Cardiac Surgery Center.[Affiliation]"

Impact of the COVID-19 Pandemic on Global TAVR Activity: The COVID-TAVI Study.

JACC Cardiovasc Interv

February 2024

Department of Cardiology, Galway University Hospital, Galway, Ireland; School of Medicine, University of Galway, Galway, Ireland. Electronic address:

Article Synopsis
  • The COVID-19 pandemic led to significant treatment delays for patients needing transcatheter aortic valve replacement (TAVR), with a marked decrease in procedure volumes during the first two waves of the pandemic.
  • The study analyzed TAVR case data from 130 centers in 61 countries, finding a 15% drop in cases during the first wave and 7% in the second, particularly affecting regions like Africa, Central-South America, and Asia.
  • Factors such as hospital type (private vs public), urban vs rural location, low procedure volumes, a country's socioeconomic status, and stringent public health measures contributed to these reductions, highlighting the need for improved public health policies for future health crises.
View Article and Find Full Text PDF

The Fontan operation, the final palliative step after a series of complex operations in patients with univentricular hearts, has undergone multiple modifications throughout the last decades, with the goal of finding the method which combines the optimal hemodynamic effects of the Fontan circulation with minimal long term side effects. An understanding of the operative evolution and subsequent side effects, as well as the management thereof seems imperative. Since its inception by Francis Fontan the, now obsolete, initial atriopulmonary connection has passed through several milestones into having now reached the era of total cavopulmonary connection.

View Article and Find Full Text PDF

Cardiac disease in Cushing's syndrome. Emphasis on the role of cardiovascular magnetic resonance imaging.

Endocrine

March 2024

University Research Institute of Maternal and Child Health and Precision Medicine and UNESCO Chair in Adolescent Health Care, Medical School, National and Kapodistrian University of Athens, Aghia Sophia Children's Hospital, Athens, Greece.

Article Synopsis
  • - Cushing's Syndrome (CS) significantly raises the risk of cardiovascular issues even after treatment, with heightened mortality and morbidity linked to both endogenous and exogenous types of the condition.
  • - The study reviews the underlying mechanisms of cardiac disease in CS, noting factors like glucocorticoid effects, arterial stiffness, and obesity, which contribute to various heart conditions that can persist after hypercortisolism is treated.
  • - Advanced imaging techniques, particularly cardiac magnetic resonance (CMR), are essential for assessing heart health in CS patients, revealing problems like left ventricular hypertrophy and microvascular disease that are often overlooked by standard echocardiography.
View Article and Find Full Text PDF

The impact of multimodal analgesia in coronary artery bypass graft surgery-a population-based analysis.

J Thorac Cardiovasc Surg

January 2025

Department of Anesthesiology, Perioperative Medicine and Intensive Care Medicine, Paracelsus Medical University, Salzburg, Austria; Department of Anesthesiology, Critical Care & Pain Management, Hospital for Special Surgery, Weill Cornell Medical College, New York, NY. Electronic address:

Objective: Multimodal pain management aims to concurrently target several pain pathways for improved treatment efficacy and recovery. We investigated associations between multimodal analgesia use and postoperative complications, length of hospital stay (LOS), and opioid consumption among patients undergoing coronary artery bypass graft surgery.

Methods: This retrospective cohort study included 349,940 adult patients undergoing elective coronary artery bypass graft surgery (January 2006 to December 2019), from the national Premier Healthcare claims dataset.

View Article and Find Full Text PDF

Bioprosthetic Valves for Lifetime Management of Aortic Stenosis: Pearls and Pitfalls.

J Clin Med

November 2023

Department of Cardiac Surgery, Attikon University Hospital, School of Medicine, National and Kapodistrian University of Athens, 15772 Athens, Greece.

This review explores the use of bioprosthetic valves for the lifetime management of patients with aortic stenosis, considering recent advancements in surgical (SAV) and transcatheter bioprostheses (TAV). We examine the strengths and challenges of each approach and their long-term implications. We highlight differences among surgical bioprostheses regarding durability and consider novel surgical valves such as the Inspiris Resilia, Intuity rapid deployment, and Perceval sutureless bioprostheses.

View Article and Find Full Text PDF

Objective: The undisputed gold standard of treatment for type A aortic dissections (TAAD) is open surgery. Anecdotal reports have assessed thoracic endovascular aortic repair (TEVAR) as a last resort for highly selected candidates. The present study aims to evaluate endovascular outcomes in TAAD patients who are unsuitable for open surgery whilst having TEVAR-compatible aortic anatomy.

View Article and Find Full Text PDF

With the aging of congenital heart disease (CHD) patients, the burden of arrhythmias is expanding. Atrial arrhythmias, especially intra-atrial reentrant tachycardia and atrial fibrillation, are the most prevalent forms of arrhythmia. Managing comorbidities, such as obesity, using pharmacotherapy, including antiarrhythmics and anticoagulants, and ablation therapy has become the cornerstone of arrhythmia management.

View Article and Find Full Text PDF

Derangements in the innate and adaptive immune responses observed in systemic inflammatory syndromes contributes to unique elevated atherosclerotic risk and incident cardiovascular disease. Novel multimodality imaging techniques may improve diagnostic precision for the screening and monitoring of disease activity. The integrated application of these technologies lead to earlier diagnosis and noninvasive monitoring of cardiac involvement in systemic inflammatory diseases that will aid in preclinical studies, enhance patient selection, and provide surrogate endpoints in clinical trials, thereby improving clinical outcomes.

View Article and Find Full Text PDF

Purpose Of Review: In systemic sclerosis (SSc) primary heart involvement (pHI) is frequent, even though often unrecognized due to its occult nature and to the lack of a specific diagnostic algorithm. The purpose of this review is to report the state of the art of the evidence in the current literature, as well as the overall diagnostic modalities and therapeutic strategies for primary heart involvement in SSc.

Recent Findings: SSc-pHI is defined by the presence of cardiac abnormalities that are predominantly attributable to SSc rather than other causes and/or complications; it may be sub-clinical and must be confirmed through diagnostic investigations.

View Article and Find Full Text PDF

Transfection of Vein Grafts with Early Growth Response Factor-1 Oligodeoxynucleotide Decoy: Effects on Stem-Cell Genes and Toll-like Receptor-Mediated Inflammation.

Int J Mol Sci

November 2023

Clinical, Experimental Surgery & Translational Research, Biomedical Research Foundation Academy of Athens, 11527 Athens, Greece.

The long-term patency of vein grafts is challenged by intimal hyperplasia. We sought to explore the intricate relationships between the transcription factor Egr-1, toll-like receptors (TLRs), and stem cell genes and also assessed oligodeoxynucleotide decoys (ODNs) as a strategy to prevent vein graft failures. A total of 42 New Zealand white rabbits were fed hyperlipidemic chow and classified into three groups.

View Article and Find Full Text PDF

Endothelial dysfunction and inflammation are common pathophysiological characteristics of chronic heart failure (CHF). Endothelial progenitor cells (EPCs) are recognized as useful markers of vascular damage and endothelial repair. The aim of this study was to investigate the effects of a cardiac rehabilitation program on EPCs and inflammatory profile in CHF patients of different severity.

View Article and Find Full Text PDF

Key Clinical Message: R-wave double counting is a rare cause of ventricular oversensing that can lead to inappropriate shocks. Optimizing device programming is essential for the avoidance of subsequent inappropriate therapies.

Abstract: R-wave double counting is a rare cause of ventricular oversensing that can lead to inappropriate shocks.

View Article and Find Full Text PDF

Objectives: Patients with hyperglycemia after cardiac surgery face increased morbidity and mortality due to postoperative complications. The main purpose of this study was to evaluate the incidence of postoperative hyperglycemia, the hyperglycemia risk factors, and its association with clinical outcomes in patients admitted to the cardiac surgery intensive care unit after cardiac surgery.

Design: Prospective, observational study.

View Article and Find Full Text PDF

Key Clinical Message: Anomalous origin of right pulmonary artery from the ascending aorta is a rare congenital malformation and it needs surgical management. Consequences of this condition affect lead to pulmonary hypertension and severe pulmonary vascular disease.

Abstract: Anomalous origin of right pulmonary artery from the ascending aorta is a rare congenital heart malformation that results in early infant mortality affecting the right pulmonary artery more than the left.

View Article and Find Full Text PDF

Arrhythmogenic cardiomyopathy (ACM) is a heart muscle disease characterized by prominent "non-ischemic" myocardial scarring predisposing to ventricular electrical instability. Diagnostic criteria for the original phenotype, arrhythmogenic right ventricular cardiomyopathy (ARVC), were first proposed in 1994 and revised in 2010 by an international Task Force (TF). A 2019 International Expert report appraised these previous criteria, finding good accuracy for diagnosis of ARVC but a lack of sensitivity for identification of the expanding phenotypic disease spectrum, which includes left-sided variants, i.

View Article and Find Full Text PDF

Risk stratification of patients with Brugada syndrome (BrS) remains challenging. Signal-averaged electrocardiogram (SAECG) is a noninvasive tool that can be used to identify the electrophysiologic substrate potentially underlying fatal ventricular arrhythmias. The aim of this meta-analysis is to summarize the existing evidence about the role of late potentials (LP) as a predictor for arrhythmic events in patients with BrS.

View Article and Find Full Text PDF

Introduction: Peripheral nervous system is early involved in Fabry disease (FD) and preferentially the small nerve fibers, causing the characteristic neuropathic pain crises usually beginning in childhood. Early detection of this likely underdiagnosed disease is an important approach because causal therapies are available.

Methods: We conducted a case-series study to investigate the small nerve fiber involvement in FD and its contribution to the diagnosis of the disease but also to the timely effective therapy administration.

View Article and Find Full Text PDF

Microvascular changes in diabetes affect the function of several critical organs, such as the kidneys, heart, brain, eye, and skin, among others. The possibility of detecting such changes early enough in order to take appropriate actions renders the development of appropriate tools and techniques an imperative need. To this end, several sensing and imaging techniques have been developed or employed in the assessment of microangiopathy in patients with diabetes.

View Article and Find Full Text PDF

Background: The E-MIOT (Extension-Myocardial Iron Overload in Thalassemia) project is an Italian Network assuring high-quality quantification of tissue iron overload by magnetic resonance imaging (MRI). We evaluated the impact of the COVID-19 pandemic on E-MIOT services.

Methods: The activity of the E-MIOT Network MRI centers in the year 2020 was compared with that of 2019.

View Article and Find Full Text PDF
Article Synopsis
  • Patients with end-stage heart failure often experience increased ventricular arrhythmias that negatively impact heart function and lead to hospitalizations.
  • While implantable cardioverter-defibrillators can stop dangerous arrhythmias, they don't reduce the overall frequency of these episodes.
  • Effective management usually involves a combination of invasive and noninvasive treatments, with this review highlighting recent advancements in catheter ablation and a structured treatment approach.
View Article and Find Full Text PDF

Cardiovascular (CV) disease (CVD) is a major cause of morbidity and mortality world-wide, thus it is important to adopt preventive interventions. Observational data demonstrating CV benefits of vitamin supplements, advanced by self-proclaimed experts have resulted in ~50% of Americans reporting the use of multivitamins for health promotion; this practice has led to a multi-billion-dollar business of the multivitamin-industry. However, the data on the extensive use of multivitamins show no consistent benefit for CVD prevention or all-cause mortality, while the use of certain vitamins might prove harmful.

View Article and Find Full Text PDF

Cardiovascular disease (CVD) is a major cause of morbidity/mortality world-wide, hence preventive interventions are crucial. Observational data showing beneficial CV effects of vitamin supplements, promoted by self-proclaimed experts, have led to ~50% of Americans using multivitamins; this practice has culminated into a multi-billion-dollar business. However, robust evidence is lacking, and certain vitamins might incur harm.

View Article and Find Full Text PDF