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 2022-01-01 to 2026-01-01.)

Article	Citations
Spontaneous giant “mycotic” aneurysm of the right coronary artery and purulent pericarditis: The riddle of the chicken and the egg	34
A nightmare on COVID-19 street	28
Patterns of care and outcomes of outpatient percutaneous coronary intervention in the United States: Insights from Nationwide Ambulatory Surgery Sample	25
Reply to: “Levels of dietary sodium intake: diverging associations with arterial stiffness and atheromatosis. Concerns about the evidence review and methods”	25
Coexisting morbidity burden in elderly hospitalized patients with and without heart failure	22
Depression and anxiety in patients with hypertrophic cardiomyopathy: a call for action	21
Concomitant transapical aortic and mitral valve transcatheter implantation in a patient with aortic stenosis and ischemic mitral regurgitation	21
The burden of cardiovascular disease and related risk factors in Greece: the ATTICA epidemiological study (2002–2022)	19
INFLA-score: A new diagnostic paradigm to identify pericarditis	19
Transthyretin amyloidosis cardiomyopathy in Greece: Clinical insights from the National Referral Center	19
Diagnostic yield of implantable loop recorders: results from the hellenic registry	17
Functional and hemodynamic result with the PASCAL Ace percutaneous mitral valve repair: A single-center experience	17
Renin-angiotensin system inhibitors and non-ST-elevation myocardial infarction outcomes based on left ventricular ejection fraction	16
Cardiogenetics: que será, será. Ou non?	15
Addressing gender disparities in cardiovascular care: insights from the Polish national clinical registry	14
Sex-specific anatomic differences in patients undergoing transcatheter aortic valve implantation: insights from the ST-TAVI registry	14
Atrial fibrillation impact on hospitalization costs for the management of acute ischemic stroke. Results from the athens stroke registry	14
A complexity evaluation system for mitral valve repair based on preoperative echocardiographic and machine learning	14
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	13
Superiority of bilateral internal thoracic artery grafting in long-term survival after coronary artery bypass through the lenses of a bedside risk score	13
Education level predicts mortality and morbidity in hospitalised patients with atrial fibrillation	13
Elevated eicosapentaenoic acid to arachidonic acid ratio and rapid coronary blood flow restoration in ST-elevation myocardial infarction	12
Ventricular arrhythmias in patients with chronic total occlusion of coronary arteries: a review focused on interventional treatments	12
Effects of ranolazine on various outcomes in patients with stable angina: an updated meta-analysis	12
From algorithms to clinical outcomes: how artificial intelligence shapes metaclinical medicine	12

Real-world implementation of guidelines for heart failure management: A systematic review and meta-analysis	11
Association between preoperative uric acid concentration and the occurrence of atrial fibrillation following cardiac surgery: an observational prospective study	11
New guidelines of EACTS/STS on aortic disease: a useful tool for the management of “aortic organ” disease	11
Shocking and inhumane inequalities. The gender gaps in Cardiology	11
Estimated pulse wave velocity predicts mortality in patients with heart failure with preserved ejection fraction	11
Adverse remodelling in tetralogy of Fallot: From risk factors to imaging analysis and future perspectives	11
Acute allograft rejection after heart transplantation: Outcomes of admissions and 30-day re-admissions	10
MitraClip implantation in real-world: clinical relevance of different patterns of left ventricular remodeling	10
Long-term comparisons of atrial fibrillation ablation outcomes with a cryoballoon or laser-balloon: A propensity-matched analysis based on continuous rhythm monitoring	10
Establishing a cardiometabolic outpatient department in Greece: a roadmap for multidisciplinary care	10
What is the best road to the heart?	10
Long-term risk, clinical management, and healthcare resource utilization of stable patients with coronary artery disease and post-myocardial infarction in Greece - TIGREECE study	10
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	10
Why does cardiology have many extreme publishing authors?	10
Updated knowledge and practical implementations of stress echocardiography in ischemic and non-ischemic cardiac diseases: An expert consensus of the Working Group of Echocardiography of the Hellenic S	9
Risk of cardiovascular events in giant cell arteritis: systematic review and meta-analysis	9
Prediction of 10-year cardiovascular disease risk by diabetes status and lipoprotein-a levels; the HellenicSCORE II+	9
Coronary angiography-based wire-free FFR methods	9
Designing medical artificial intelligence systems for global use: focus on interoperability, scalability, and accessibility	9
Prognostic impact of diabetes mellitus on in-hospital mortality in patients with acute myocardial infarction complicating renal dysfunction according to age and sex	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	8
Chorion-derived perinatal mesenchymal stem cells improve cardiac function and vascular regeneration: Preferential treatment for ischemic heart disease	8
BEAT-IT: A de-novo cardiac screening programme in Maltese adolescents	8
Comprehensive diagnostic workup in patients with suspected heart failure and preserved ejection fraction	8
Early ganglion stellate blockade as part of two-step treatment algorithm suppresses electrical storm and need for intubation	8
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	8
Dual nature of mitral annular disjunction: normal variation or pathological precursor?	8
Comparison of different venous access ways for right heart catheterization—a meta-analysis	8
Multimodality imaging in patients with implantable loop recorders: Tips and tricks	8
Congenital left aortic sinus of valsalva to left ventricle tunnel	8
Novel genetic variants potentially associated with the pathogenesis of coronary artery aneurysm: whole-exome sequencing analysis	7
Ischemic stroke in patients with atrial fibrillation on oral anticoagulants: characteristics and long-term outcomes	7
Impact of reduced apolipoprotein A-I levels on pulmonary arterial hypertension	7
Preoperative and mid-term right ventricular systolic function assessment, at rest and during exercise, with speckle-tracking echocardiography after left ventricular assist device implantation	7
Interprofessional survey of perceived barriers regarding cardiac rehabilitation in Greece	7
Validation of the skeletal muscle index as a predictor of mortality in Middle Eastern patients undergoing transcatheter aortic valve replacement	7
Chylopericardium after cardiac surgery: a rare yet serious complication	7
Twin circumflex arteries in a patient with lateral STEMI: Which is the culprit artery?	7
Multiple systemic arterial aneurysms in large-vessel vasculitis	7
Cardiomyopathies in children: An overview	6
Diagnostic performance of computed tomography-based fraction flow reserve in identifying myocardial ischemia caused by coronary artery stenosis: A meta-analysis	6
The prognostic impact of the 2015 European Society of Cardiology pericarditis guidelines implementation in clinical practice	6
Left atrial volume changes during exercise stress echocardiography in heart failure and hypertrophic cardiomyopathy	6
Right ventricular–pulmonary arterial coupling in patients with first acute myocardial infarction: an emerging post-revascularization triage tool	6
L1 cell adhesion molecule: a novel potential biomarker for infective endocarditis patients at high risk of embolism and adverse events	6
Effects of empagliflozin in women and men with acute myocardial infarction: An analysis from the EMMY trial	6
Barking up the wrong artery: A rare case of thrombosed ascending aortic aneurysm eroding into main pulmonary artery	6
Fluoroscopy integration module guides successful ablation in atrial fibrillation with coronary-pulmonary artery fistula	6
The Causality between Gut Microbiota and Hypertension and Hypertension-related Complications: A Bidirectional Two-Sample Mendelian Randomization Analysis	6
Comparison of long-term prognoses of percutaneous coronary intervention via distal transradial and conventional transradial access for acute coronary syndrome	6

In-depth computational analysis reveals the significant dysregulation of key gap junction proteins (GJPs) driving thoracic aortic aneurysm development	6
Early acute kidney injury after transcatheter aortic valve implantation: predictive value of currently available risk scores	6
Surgical aortic valvuloplasty is a better primary intervention for isolated congenital aortic stenosis in children with bicuspid aortic valve than balloon aortic valvuloplasty	6
Lifetime risk of cardiovascular disease stratified by traditional risk factors: Findings from the cohort of Tehran lipid and glucose study	5
Incidence and outcomes of COVID-19 in patients with pulmonary arterial hypertension and chronic thromboembolic pulmonary hypertension: Data from the Hellenic pulmOnary hyPertension rEgistry (HOPE)	5
Percutaneous management of a malfunctioning PFO Occluder using Faradrive sheath and EN Snare	5
Cardiac involvement in athletes recently recovered from COVID-19	5
Safety and efficacy of shortened dual antiplatelet therapy after complex percutaneous coronary intervention: A systematic review and meta-analysis	5
Acute myocardial infarction complicated by cardiogenic shock in a patient with a single coronary artery	5
Transcatheter closure of a postoperative iatrogenic pseudoaneurysm in a patient with congenital heart disease	5
Prevalence, incidence, and patterns of lipid-lowering treatment in Greece based on real-world nationwide data on 8,535,780 adults	5
Functional myocardial bridging resulting in sub-endocardial anterior myocardial infarction	5
Clinical phenotypes according to diuretic combination in acute heart failure	5
Large collateral from the right coronary artery in a case of coarctation of the aorta with bilateral subclavian artery aneurysms in an adult	5
Long-term outcome in double-chambered right ventricle: a retrospective single-center study	5
Effects of Chios Mastiha essential oil on cholesterol levels of healthy volunteers: A prospective, randomized, placebo-controlled study (MASTIHA-OIL)	5
Effect of the COVID-19 pandemic on cardiac electrophysiological ablation procedures in Greece – Data from the Hellenic Society of Cardiology Ablation Registry	5
Nationwide mortality trends from 2001 to 2020 in Greece: health policy implications under the scope of aging societies	4
Clinical effectiveness of thrombus aspiration during percutaneous coronary intervention for stent thrombosis in a contemporary setting	4
The stress hyperglycemia ratio improves the predictive ability of the GRACE score for in-hospital mortality in patients with acute myocardial infarction	4
Retransplantation in Greece: Ethical and practical considerations	4
In memoriam: George L. Bakris (1952–2024)	4
Men are from mars, but women are not from venus: The benefits of SGLT2 inhibitors after myocardial infarction are independent of gender	4
Ageism in medicine: procrustean logic in healthcare	4
Chlorthalidone versus hydrochlorothiazide for preventing cardiovascular disease in hypertension: Is the case closed?	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
Eosinophilic myocarditis due to Toxocara infection	4
Impact of three-month treatment with pitavastatin on arterial stiffness in patients with hypercholesterolemia: a prospective observational study	4
Prognostic impact of shock in patients with type A acute aortic syndrome. Results of a nationwide multicenter study	4
A novel diagnostic tool to identify atrial endo-epicardial asynchrony using signal fingerprinting	4
Atrial fibrillation post CABG and the risk of arrhythmia recurrence: the AFRODITE study	4
Prognostic benefits of early vascular surgical intervention in patients with major peripheral vascular complications following transcatheter aortic valve implantation	4
Association of serum cytokines with coronary chronic total occlusion and their role in predicting procedural outcomes	4
Obesity modifies the association between abnormal glucose metabolism and atrial fibrillation in older adults: a community-based longitudinal and prospective cohort study	4
Balancing Form and Function in the Modern Era of Scientific Publishing: To Appear and to (have) Appeal	4
Assessing the relationship between monocyte-to-HDL cholesterol ratio and mortality in patients with hypertrophic cardiomyopathy	4
Seasonal Variation in Sudden Cardiac Death: Insights from a Large United Kingdom Registry	4
Changes in the risk profile and outcomes of patients undergoing isolated coronary artery bypass grafting: A 23-year analysis of over 14000 patients	4