OOIR: Observatory of International Research

Papers

(The TQCC of Hellenic Journal of Cardiology is 3. 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 2021-05-01 to 2025-05-01.)

Article	Citations
Patterns of care and outcomes of outpatient percutaneous coronary intervention in the United States: Insights from Nationwide Ambulatory Surgery Sample	30
A nightmare on COVID-19 street	28
Functional and hemodynamic result with the PASCAL Ace percutaneous mitral valve repair: A single-center experience	27
Spontaneous giant “mycotic” aneurysm of the right coronary artery and purulent pericarditis: The riddle of the chicken and the egg	25
Concomitant transapical aortic and mitral valve transcatheter implantation in a patient with aortic stenosis and ischemic mitral regurgitation	24
Reply to: “Levels of dietary sodium intake: diverging associations with arterial stiffness and atheromatosis. Concerns about the evidence review and methods”	22
INFLA-score: A new diagnostic paradigm to identify pericarditis	21
Transthyretin amyloidosis cardiomyopathy in Greece: Clinical insights from the National Referral Center	20
The burden of cardiovascular disease and related risk factors in Greece: the ATTICA epidemiological study (2002–2022)	18
Depression and anxiety in patients with hypertrophic cardiomyopathy: a call for action	18
Coexisting morbidity burden in elderly hospitalized patients with and without heart failure	18
Diagnostic yield of implantable loop recorders: results from the hellenic registry	17
Clinical characteristics and management of patients with diabetes mellitus and stable coronary artery disease in daily clinical practice. The SCAD–DM Registry	16
Superiority of bilateral internal thoracic artery grafting in long-term survival after coronary artery bypass through the lenses of a bedside risk score	16
A complexity evaluation system for mitral valve repair based on preoperative echocardiographic and machine learning	15
From algorithms to clinical outcomes: how artificial intelligence shapes metaclinical medicine	14
Real-world implementation of guidelines for heart failure management: A systematic review and meta-analysis	13
Renin-angiotensin system inhibitors and non-ST-elevation myocardial infarction outcomes based on left ventricular ejection fraction	13
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
Education level predicts mortality and morbidity in hospitalised patients with atrial fibrillation	13
Cardiogenetics: que será, será. Ou non?	12
Elevated eicosapentaenoic acid to arachidonic acid ratio and rapid coronary blood flow restoration in ST-elevation myocardial infarction	12
Estimated pulse wave velocity predicts mortality in patients with heart failure with preserved ejection fraction	12
Effects of ranolazine on various outcomes in patients with stable angina: an updated meta-analysis	11
Sex-specific anatomic differences in patients undergoing transcatheter aortic valve implantation: insights from the ST-TAVI registry	11

Adverse remodelling in tetralogy of Fallot: From risk factors to imaging analysis and future perspectives	11
Atrial fibrillation impact on hospitalization costs for the management of acute ischemic stroke. Results from the athens stroke registry	11
Chronic thromboembolic pulmonary hypertension due to an implantable cardioverter-defibrillator's lead thrombosis	10
Risk of cardiovascular events in giant cell arteritis: systematic review and meta-analysis	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
Designing medical artificial intelligence systems for global use: focus on interoperability, scalability, and accessibility	9
Shocking and inhumane inequalities. The gender gaps in Cardiology	9
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
Prognostic impact of diabetes mellitus on in-hospital mortality in patients with acute myocardial infarction complicating renal dysfunction according to age and sex	9
Why does cardiology have many extreme publishing authors?	9
MitraClip implantation in real-world: clinical relevance of different patterns of left ventricular remodeling	8
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	8
What is the best road to the heart?	8
New guidelines of EACTS/STS on aortic disease: a useful tool for the management of “aortic organ” disease	8
Acute allograft rejection after heart transplantation: Outcomes of admissions and 30-day re-admissions	7
Chorion-derived perinatal mesenchymal stem cells improve cardiac function and vascular regeneration: Preferential treatment for ischemic heart disease	7
Long-term comparisons of atrial fibrillation ablation outcomes with a cryoballoon or laser-balloon: A propensity-matched analysis based on continuous rhythm monitoring	7
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	7
Comprehensive diagnostic workup in patients with suspected heart failure and preserved ejection fraction	7
Establishing a cardiometabolic outpatient department in Greece: a roadmap for multidisciplinary care	7
Prediction of long-term survival in patients with transfusion-dependent hemoglobinopathies: Insights from cardiac imaging and ferritin	7
M2c macrophages prevent atrial fibrillation in association with the inhibition of KCNQ1 in human embryonic stem cell-derived atrial-like cardiomyocytes	7
Comparison of different venous access ways for right heart catheterization—a meta-analysis	7
BEAT-IT: A de-novo cardiac screening programme in Maltese adolescents	7
Multimodality imaging in patients with implantable loop recorders: Tips and tricks	7
Association between preoperative uric acid concentration and the occurrence of atrial fibrillation following cardiac surgery: an observational prospective study	7
Prediction of 10-year cardiovascular disease risk by diabetes status and lipoprotein-a levels; the HellenicSCORE II+	7
Early ganglion stellate blockade as part of two-step treatment algorithm suppresses electrical storm and need for intubation	7
Congenital left aortic sinus of valsalva to left ventricle tunnel	7
Impact of left ventricular end-diastolic pressure as a marker for diastolic dysfunction on long-term outcomes in patients undergoing transcatheter aortic valve replacement	7
Twin circumflex arteries in a patient with lateral STEMI: Which is the culprit artery?	6
Levels of dietary sodium intake: diverging associations with arterial stiffness and atheromatosis	6
The effect of Remote Ischemic Preconditioning (RIPC) on myocardial injury and inflammation in patients with severe aortic valve stenosis undergoing Transcatheter Aortic Valve Replacement (TAVΙ)	6
Comparison of long-term prognoses of percutaneous coronary intervention via distal transradial and conventional transradial access for acute coronary syndrome	6
Impact of reduced apolipoprotein A-I levels on pulmonary arterial hypertension	6
Multiple systemic arterial aneurysms in large-vessel vasculitis	6
The Causality between Gut Microbiota and Hypertension and Hypertension-related Complications: A Bidirectional Two-Sample Mendelian Randomization Analysis	6
Preoperative and mid-term right ventricular systolic function assessment, at rest and during exercise, with speckle-tracking echocardiography after left ventricular assist device implantation	6
Novel genetic variants potentially associated with the pathogenesis of coronary artery aneurysm: whole-exome sequencing analysis	6
Cardiomyopathies in children: An overview	5
Interprofessional survey of perceived barriers regarding cardiac rehabilitation in Greece	5
Fluoroscopy integration module guides successful ablation in atrial fibrillation with coronary-pulmonary artery fistula	5
Risk stratification of patients with Brugada syndrome: the impact of myocardial strain analysis using cardiac magnetic resonance feature tracking	5
Effect of the COVID-19 pandemic on cardiac electrophysiological ablation procedures in Greece – Data from the Hellenic Society of Cardiology Ablation Registry	5
Cardiac involvement in athletes recently recovered from COVID-19	5
Diagnostic performance of computed tomography-based fraction flow reserve in identifying myocardial ischemia caused by coronary artery stenosis: A meta-analysis	5
L1 cell adhesion molecule: A novel potential biomarker for IE patients at high risk of embolism and adverse events	5
In-depth computational analysis reveals the significant dysregulation of key gap junction proteins (GJPs) driving thoracic aortic aneurysm development	5
Barking up the wrong artery: A rare case of thrombosed ascending aortic aneurysm eroding into main pulmonary artery	5
Functional myocardial bridging resulting in sub-endocardial anterior myocardial infarction	5

Early acute kidney injury after transcatheter aortic valve implantation: predictive value of currently available risk scores	5
The prognostic impact of the 2015 European Society of Cardiology pericarditis guidelines implementation in clinical practice	5
Effects of empagliflozin in women and men with acute myocardial infarction: An analysis from the EMMY trial	5
Clinical phenotypes according to diuretic combination in acute heart failure	5
Right ventricular–pulmonary arterial coupling in patients with first acute myocardial infarction: an emerging post-revascularization triage tool	5
Left atrial volume changes during exercise stress echocardiography in heart failure and hypertrophic cardiomyopathy	5
Effects of Chios Mastiha essential oil on cholesterol levels of healthy volunteers: A prospective, randomized, placebo-controlled study (MASTIHA-OIL)	5
Retransplantation in Greece: Ethical and practical considerations	4
Prognostic impact of shock in patients with type A acute aortic syndrome. Results of a nationwide multicenter study	4
Lifetime risk of cardiovascular disease stratified by traditional risk factors: Findings from the cohort of Tehran lipid and glucose study	4
Men are from mars, but women are not from venus: The benefits of SGLT2 inhibitors after myocardial infarction are independent of gender	4
Incidence and cost of bleeding events requiring hospitalization in patients with atrial fibrillation treated with acenocoumarol in Greece	4
Current clinical applications and potential perspective of micro-computed tomography in cardiovascular imaging: A systematic scoping review	4
In memoriam: George L. Bakris (1952–2024)	4
Balancing Form and Function in the Modern Era of Scientific Publishing: To Appear and to (have) Appeal	4
A novel diagnostic tool to identify atrial endo-epicardial asynchrony using signal fingerprinting	4
Surgical aortic valvuloplasty is a better primary intervention for isolated congenital aortic stenosis in children with bicuspid aortic valve than balloon aortic valvuloplasty	4
Acute myocardial infarction complicated by cardiogenic shock in a patient with a single coronary artery	4
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)	4
Transcatheter closure of a postoperative iatrogenic pseudoaneurysm in a patient with congenital heart disease	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
Seasonal Variation in Sudden Cardiac Death: Insights from a Large United Kingdom Registry	4
Eosinophilic myocarditis due to Toxocara infection	4
Large collateral from the right coronary artery in a case of coarctation of the aorta with bilateral subclavian artery aneurysms in an adult	4
Long-term outcomes and quality of life following acute type A aortic dissection	4
Safety and efficacy of shortened dual antiplatelet therapy after complex percutaneous coronary intervention: A systematic review and meta-analysis	4
Obesity modifies the association between abnormal glucose metabolism and atrial fibrillation in older adults: a community-based longitudinal and prospective cohort study	4
Dietary habits among 177,091 Greek schoolchildren by age, sex, weight status, region, and living area. A cross-sectional study	3
The hemodynamic performance of balloon-expandable aortic bioprostheses in the elderly: a comparison between rapid deployment and transcatheter implantation	3
Coronary artery disease and its management in TAVI	3
Clinical effectiveness of thrombus aspiration during percutaneous coronary intervention for stent thrombosis in a contemporary setting	3
Association of serum cytokines with coronary chronic total occlusion and their role in predicting procedural outcomes	3
Severe peripartum cardiomyopathy: A case report of successful recovery with personalized treatment approach	3
Impact of myocardial injury on mortality in patients with COVID-19: a meta-analysis	3
Prognostic benefits of early vascular surgical intervention in patients with major peripheral vascular complications following transcatheter aortic valve implantation	3
Infective endocarditis – A review of current therapy and future challenges	3
Discordance between remnant cholesterol and low-density lipoprotein cholesterol predicts cardiovascular disease: the Kailuan prospective cohort study	3
Is it a steal or a squeeze?	3
Cardiovascular pre-participation evaluation of male competitive athletes: results of a clinical and electrocardiographic screening program in southwestern Greece	3
Cryoablation versus hybrid radiofrequency with high- and very-high-power short-duration catheter ablation for the treatment of paroxysmal atrial fibrillation	3
Chlorthalidone versus hydrochlorothiazide for preventing cardiovascular disease in hypertension: Is the case closed?	3
Better performance of the APPLE score for the prediction of very early atrial fibrillation recurrence post-ablation	3
Atrial fibrillation post CABG and the risk of arrhythmia recurrence: the AFRODITE study	3
Impact of three-month treatment with pitavastatin on arterial stiffness in patients with hypercholesterolemia: a prospective observational study	3
Two-year clinical outcomes of resorbable magnesium scaffold versus conventional drug-eluting stents in ST-segment elevation myocardial infarction: A propensity score matching analysis	3
Nationwide mortality trends from 2001 to 2020 in Greece: health policy implications under the scope of aging societies	3
First cases of transcatheter edge-to-edge repair after orthotopic heart transplantation in Greece	3
Cardiorenal multimorbidity in hospitalized cardiology patients: The Hellenic Cardiorenal Morbidity Snapshot (HECMOS) study	3
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	3
Robotic vs other surgery techniques for mitral valve repair and/or replacement: A systematic review and meta-analysis	3
Long-term effects of the perindopril or irbesartan combined with diltiazem on left ventricular hypertrophy in outpatient mild to moderate hypertensive subjects	3
Adoption of the SAMe-TT2R2 score in older patients with atrial fibrillation	3
The recalibrated HellenicSCORE based on newly derived risk factors from the Hellenic National Nutrition and Health Survey (HNNHS); the HellenicSCORE II	3
The stress hyperglycemia ratio improves the predictive ability of the GRACE score for in-hospital mortality in patients with acute myocardial infarction	3
Assessing the relationship between monocyte-to-HDL cholesterol ratio and mortality in patients with hypertrophic cardiomyopathy	3
Computed tomoGRaphy guidEd invasivE Coronary angiography in patiEnts with a previous coronary artery bypass graft surgery trial (GREECE trial): Rationale and design of a multicenter, randomized contro	3
TAVI with the ACURATE neo transcatheter heart valve in special populations: A systematic review	3