OOIR: Observatory of International Research

Papers

(The TQCC of Hellenic Journal of Cardiology is 4. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2022-05-01 to 2026-05-01.)

Article	Citations
Functional and hemodynamic result with the PASCAL Ace percutaneous mitral valve repair: A single-center experience	38
A nightmare on COVID-19 street	33
Patterns of care and outcomes of outpatient percutaneous coronary intervention in the United States: Insights from Nationwide Ambulatory Surgery Sample	26
Concomitant transapical aortic and mitral valve transcatheter implantation in a patient with aortic stenosis and ischemic mitral regurgitation	26
Depression and anxiety in patients with hypertrophic cardiomyopathy: a call for action	25
INFLA-score: A new diagnostic paradigm to identify pericarditis	21
Coexisting morbidity burden in elderly hospitalized patients with and without heart failure	21
Transthyretin amyloidosis cardiomyopathy in Greece: Clinical insights from the National Referral Center	21
The burden of cardiovascular disease and related risk factors in Greece: the ATTICA epidemiological study (2002–2022)	21
From algorithms to clinical outcomes: how artificial intelligence shapes metaclinical medicine	20
Diagnostic yield of implantable loop recorders: results from the hellenic registry	20
Effects of ranolazine on various outcomes in patients with stable angina: an updated meta-analysis	19
Cardiogenetics: que será, será. Ou non?	19
A complexity evaluation system for mitral valve repair based on preoperative echocardiographic and machine learning	17
Real-world implementation of guidelines for heart failure management: A systematic review and meta-analysis	17
Renin-angiotensin system inhibitors and non-ST-elevation myocardial infarction outcomes based on left ventricular ejection fraction	16
Ventricular arrhythmias in patients with chronic total occlusion of coronary arteries: a review focused on interventional treatments	15
An evaluation of the clinical efficacy of the application of 28mm cryoballoon for linear ablation of left atrial apex combined with enlarged pulmonary vein vestibule ablation for persistent atrial fib	15
Atrial fibrillation impact on hospitalization costs for the management of acute ischemic stroke. Results from the athens stroke registry	15
Elevated eicosapentaenoic acid to arachidonic acid ratio and rapid coronary blood flow restoration in ST-elevation myocardial infarction	15
Sex-specific anatomic differences in patients undergoing transcatheter aortic valve implantation: insights from the ST-TAVI registry	14
Estimated pulse wave velocity predicts mortality in patients with heart failure with preserved ejection fraction	14
Adverse remodelling in tetralogy of Fallot: From risk factors to imaging analysis and future perspectives	14
Medicine shapes ethics; however, it has to be the other way round as well	13
Education level predicts mortality and morbidity in hospitalised patients with atrial fibrillation	13

Prognostic impact of diabetes mellitus on in-hospital mortality in patients with acute myocardial infarction complicating renal dysfunction according to age and sex	12
Addressing gender disparities in cardiovascular care: insights from the Polish national clinical registry	12
New guidelines of EACTS/STS on aortic disease: a useful tool for the management of “aortic organ” disease	12
Challenges and disparities faced by women cardiologists and cardiac surgeons	12
Coronary angiography-based wire-free FFR methods	11
Why does cardiology have many extreme publishing authors?	11
Changes to transcatheter aortic valve replacement (TAVR) services during the first wave of the COVID-19 pandemic: A single centre experience from United Kingdom tertiary hospital	11
Shocking and inhumane inequalities. The gender gaps in Cardiology	11
Establishing a cardiometabolic outpatient department in Greece: a roadmap for multidisciplinary care	11
Long-term risk, clinical management, and healthcare resource utilization of stable patients with coronary artery disease and post-myocardial infarction in Greece - TIGREECE study	11
Designing medical artificial intelligence systems for global use: focus on interoperability, scalability, and accessibility	11
Prediction of 10-year cardiovascular disease risk by diabetes status and lipoprotein-a levels; the HellenicSCORE II+	11
Long-term comparisons of atrial fibrillation ablation outcomes with a cryoballoon or laser-balloon: A propensity-matched analysis based on continuous rhythm monitoring	11
Association between preoperative uric acid concentration and the occurrence of atrial fibrillation following cardiac surgery: an observational prospective study	11
Risk of cardiovascular events in giant cell arteritis: systematic review and meta-analysis	10
Early ganglion stellate blockade as part of two-step treatment algorithm suppresses electrical storm and need for intubation	10
Chorion-derived perinatal mesenchymal stem cells improve cardiac function and vascular regeneration: Preferential treatment for ischemic heart disease	10
BEAT-IT: A de-novo cardiac screening programme in Maltese adolescents	9
Dual nature of mitral annular disjunction: normal variation or pathological precursor?	9
Multimodality imaging in patients with implantable loop recorders: Tips and tricks	9
Congenital left aortic sinus of valsalva to left ventricle tunnel	9
Comparison of different venous access ways for right heart catheterization—a meta-analysis	9
Impact of left ventricular end-diastolic pressure as a marker for diastolic dysfunction on long-term outcomes in patients undergoing transcatheter aortic valve replacement	9
Impact of reduced apolipoprotein A-I levels on pulmonary arterial hypertension	9
Role of Life’s Essential 8 score in mediating socioeconomic status in the incidence of atrial fibrillation and heart failure: a population-based cohort study	9
Comprehensive diagnostic workup in patients with suspected heart failure and preserved ejection fraction	9
Multiple systemic arterial aneurysms in large-vessel vasculitis	8
Twin circumflex arteries in a patient with lateral STEMI: Which is the culprit artery?	8
Preoperative and mid-term right ventricular systolic function assessment, at rest and during exercise, with speckle-tracking echocardiography after left ventricular assist device implantation	8
Effects of empagliflozin in women and men with acute myocardial infarction: An analysis from the EMMY trial	8
Interprofessional survey of perceived barriers regarding cardiac rehabilitation in Greece	8
Novel genetic variants potentially associated with the pathogenesis of coronary artery aneurysm: whole-exome sequencing analysis	8
L1 cell adhesion molecule: a novel potential biomarker for infective endocarditis patients at high risk of embolism and adverse events	8
In-depth computational analysis reveals the significant dysregulation of key gap junction proteins (GJPs) driving thoracic aortic aneurysm development	8
Chylopericardium after cardiac surgery: a rare yet serious complication	7
The Causality between Gut Microbiota and Hypertension and Hypertension-related Complications: A Bidirectional Two-Sample Mendelian Randomization Analysis	7
Surgical aortic valvuloplasty is a better primary intervention for isolated congenital aortic stenosis in children with bicuspid aortic valve than balloon aortic valvuloplasty	7
Cardiac involvement in athletes recently recovered from COVID-19	7
Validation of the skeletal muscle index as a predictor of mortality in Middle Eastern patients undergoing transcatheter aortic valve replacement	7
Revascularization reporting and procedural details in ostial stenting outcomes	7
Comparison of long-term prognoses of percutaneous coronary intervention via distal transradial and conventional transradial access for acute coronary syndrome	7
Left atrial volume changes during exercise stress echocardiography in heart failure and hypertrophic cardiomyopathy	7
Fluoroscopy integration module guides successful ablation in atrial fibrillation with coronary-pulmonary artery fistula	7
Ischemic stroke in patients with atrial fibrillation on oral anticoagulants: characteristics and long-term outcomes	7
Cardiomyopathies in children: An overview	7
Barking up the wrong artery: A rare case of thrombosed ascending aortic aneurysm eroding into main pulmonary artery	7
Functional myocardial bridging resulting in sub-endocardial anterior myocardial infarction	7
Effects of Chios Mastiha essential oil on cholesterol levels of healthy volunteers: A prospective, randomized, placebo-controlled study (MASTIHA-OIL)	6
Early acute kidney injury after transcatheter aortic valve implantation: predictive value of currently available risk scores	6
Long-term outcome in double-chambered right ventricle: a retrospective single-center study	6

Large collateral from the right coronary artery in a case of coarctation of the aorta with bilateral subclavian artery aneurysms in an adult	6
Lifetime risk of cardiovascular disease stratified by traditional risk factors: Findings from the cohort of Tehran lipid and glucose study	6
Prevalence, incidence, and patterns of lipid-lowering treatment in Greece based on real-world nationwide data on 8,535,780 adults	6
Clinical phenotypes according to diuretic combination in acute heart failure	6
Effect of the COVID-19 pandemic on cardiac electrophysiological ablation procedures in Greece – Data from the Hellenic Society of Cardiology Ablation Registry	6
Transcatheter closure of a postoperative iatrogenic pseudoaneurysm in a patient with congenital heart disease	6
Safety and efficacy of shortened dual antiplatelet therapy after complex percutaneous coronary intervention: A systematic review and meta-analysis	6
Percutaneous management of a malfunctioning PFO Occluder using Faradrive sheath and EN Snare	6
Right ventricular–pulmonary arterial coupling in patients with first acute myocardial infarction: an emerging post-revascularization triage tool	6
Men are from mars, but women are not from venus: The benefits of SGLT2 inhibitors after myocardial infarction are independent of gender	6
Association of hematological cancer with characteristics, causes and outcomes of patients with cardiovascular admissions	6
Acute myocardial infarction complicated by cardiogenic shock in a patient with a single coronary artery	6
Assessing the relationship between monocyte-to-HDL cholesterol ratio and mortality in patients with hypertrophic cardiomyopathy	5
Balancing Form and Function in the Modern Era of Scientific Publishing: To Appear and to (have) Appeal	5
Bilateral coronary arteries with multiple giant pseudoaneurysms following the Takeuchi procedure	5
In memoriam: George L. Bakris (1952–2024)	5
Retransplantation in Greece: Ethical and practical considerations	5
Eosinophilic myocarditis due to Toxocara infection	5
Ageism in medicine: procrustean logic in healthcare	5
Changes in the risk profile and outcomes of patients undergoing isolated coronary artery bypass grafting: A 23-year analysis of over 14000 patients	5
A novel diagnostic tool to identify atrial endo-epicardial asynchrony using signal fingerprinting	5
Impact of three-month treatment with pitavastatin on arterial stiffness in patients with hypercholesterolemia: a prospective observational study	5
Seasonal Variation in Sudden Cardiac Death: Insights from a Large United Kingdom Registry	5
Single-lead ECG-based machine learning model for noninvasive detection of left ventricular hypertrophy in hypertension	5
WITHDRAWN: An evaluation of the clinical efficacy of the application of 28 mm cryoballoon for linear ablation of left atrial apex combined with enlarged pulmonary vein vestibule ablation for persisten	4
Acute effectiveness and safety of the different mitral isthmus lines in the treatment of perimitral flutter with radiofrequency ablation	4
The stress hyperglycemia ratio improves the predictive ability of the GRACE score for in-hospital mortality in patients with acute myocardial infarction	4
Chlorthalidone versus hydrochlorothiazide for preventing cardiovascular disease in hypertension: Is the case closed?	4
Obesity modifies the association between abnormal glucose metabolism and atrial fibrillation in older adults: a community-based longitudinal and prospective cohort study	4
Clinical effectiveness of thrombus aspiration during percutaneous coronary intervention for stent thrombosis in a contemporary setting	4
First cases of transcatheter edge-to-edge repair after orthotopic heart transplantation in Greece	4
Dietary habits among 177,091 Greek schoolchildren by age, sex, weight status, region, and living area. A cross-sectional study	4
Under pressure: screening for heart failure in the older aged individuals	4
Cardiorenal multimorbidity in hospitalized cardiology patients: The Hellenic Cardiorenal Morbidity Snapshot (HECMOS) study	4
Prognostic benefits of early vascular surgical intervention in patients with major peripheral vascular complications following transcatheter aortic valve implantation	4
Acute coronary syndrome in a patient with diffuse coronary artery ectasia: From incidental echocardiographic finding to emergency revascularization	4
Nationwide mortality trends from 2001 to 2020 in Greece: health policy implications under the scope of aging societies	4
Prognostic impact of shock in patients with type A acute aortic syndrome. Results of a nationwide multicenter study	4
Cryoablation versus hybrid radiofrequency with high- and very-high-power short-duration catheter ablation for the treatment of paroxysmal atrial fibrillation	4
Coronary artery disease and its management in TAVI	4
Emerging Links Between Cardiovascular Disease and Microplastics Exposure – A Narrative Review	4
The hemodynamic performance of balloon-expandable aortic bioprostheses in the elderly: a comparison between rapid deployment and transcatheter implantation	4
Robotic vs other surgery techniques for mitral valve repair and/or replacement: A systematic review and meta-analysis	4
Association of serum cytokines with coronary chronic total occlusion and their role in predicting procedural outcomes	4
Atrial fibrillation post CABG and the risk of arrhythmia recurrence: the AFRODITE study	4
Two-year clinical outcomes of resorbable magnesium scaffold versus conventional drug-eluting stents in ST-segment elevation myocardial infarction: A propensity score matching analysis	4
Better performance of the APPLE score for the prediction of very early atrial fibrillation recurrence post-ablation	4
Is it a steal or a squeeze?	4
Discordance between remnant cholesterol and low-density lipoprotein cholesterol predicts cardiovascular disease: the Kailuan prospective cohort study	4
Cardiovascular pre-participation evaluation of male competitive athletes: results of a clinical and electrocardiographic screening program in southwestern Greece	4