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 2022-08-01 to 2026-08-01.)

Article	Citations
A nightmare on COVID-19 street	39
Concomitant transapical aortic and mitral valve transcatheter implantation in a patient with aortic stenosis and ischemic mitral regurgitation	37
Depression and anxiety in patients with hypertrophic cardiomyopathy: a call for action	27
Diagnostic yield of implantable loop recorders: results from the hellenic registry	25
Transthyretin amyloidosis cardiomyopathy in Greece: Clinical insights from the National Referral Center	25
The burden of cardiovascular disease and related risk factors in Greece: the ATTICA epidemiological study (2002–2022)	24
INFLA-score: A new diagnostic paradigm to identify pericarditis	24
From algorithms to clinical outcomes: how artificial intelligence shapes metaclinical medicine	23
Cardiogenetics: que será, será. Ou non?	22
Renin-angiotensin system inhibitors and non-ST-elevation myocardial infarction outcomes based on left ventricular ejection fraction	22
Adverse remodelling in tetralogy of Fallot: From risk factors to imaging analysis and future perspectives	21
Atrial fibrillation impact on hospitalization costs for the management of acute ischemic stroke. Results from the athens stroke registry	21
Elevated eicosapentaenoic acid to arachidonic acid ratio and rapid coronary blood flow restoration in ST-elevation myocardial infarction	18
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	17
Challenges and disparities faced by women cardiologists and cardiac surgeons	17
Sex-specific anatomic differences in patients undergoing transcatheter aortic valve implantation: insights from the ST-TAVI registry	16
Medicine shapes ethics; however, it has to be the other way round as well	15
Estimated pulse wave velocity predicts mortality in patients with heart failure with preserved ejection fraction	15
Coronary angiography-based wire-free FFR methods	14
Addressing gender disparities in cardiovascular care: insights from the Polish national clinical registry	14
Ventricular arrhythmias in patients with chronic total occlusion of coronary arteries: a review focused on interventional treatments	14
A complexity evaluation system for mitral valve repair based on preoperative echocardiographic and machine learning	14
New guidelines of EACTS/STS on aortic disease: a useful tool for the management of “aortic organ” disease	14
Effects of ranolazine on various outcomes in patients with stable angina: an updated meta-analysis	14
Establishing a cardiometabolic outpatient department in Greece: a roadmap for multidisciplinary care	13

Shocking and inhumane inequalities. The gender gaps in Cardiology	12
Why does cardiology have many extreme publishing authors?	12
Association between preoperative uric acid concentration and the occurrence of atrial fibrillation following cardiac surgery: an observational prospective study	12
Long-term risk, clinical management, and healthcare resource utilization of stable patients with coronary artery disease and post-myocardial infarction in Greece - TIGREECE study	12
Designing medical artificial intelligence systems for global use: focus on interoperability, scalability, and accessibility	12
Prognostic impact of diabetes mellitus on in-hospital mortality in patients with acute myocardial infarction complicating renal dysfunction according to age and sex	12
Prediction of 10-year cardiovascular disease risk by diabetes status and lipoprotein-a levels; the HellenicSCORE II+	12
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	12
Comparison of different venous access ways for right heart catheterization—a meta-analysis	11
Early ganglion stellate blockade as part of two-step treatment algorithm suppresses electrical storm and need for intubation	11
Comprehensive diagnostic workup in patients with suspected heart failure and preserved ejection fraction	11
Risk of cardiovascular events in giant cell arteritis: systematic review and meta-analysis	11
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	11
Multimodality imaging in patients with implantable loop recorders: Tips and tricks	11
Congenital left aortic sinus of valsalva to left ventricle tunnel	10
Dual nature of mitral annular disjunction: normal variation or pathological precursor?	10
Validation of the skeletal muscle index as a predictor of mortality in Middle Eastern patients undergoing transcatheter aortic valve replacement	9
Twin circumflex arteries in a patient with lateral STEMI: Which is the culprit artery?	9
Impact of reduced apolipoprotein A-I levels on pulmonary arterial hypertension	9
BEAT-IT: A de-novo cardiac screening programme in Maltese adolescents	9
Interprofessional survey of perceived barriers regarding cardiac rehabilitation in Greece	9
Gauging energy consumption of digital medicine: a yeti's environmental footprint?	9
Multiple systemic arterial aneurysms in large-vessel vasculitis	9
Novel genetic variants potentially associated with the pathogenesis of coronary artery aneurysm: whole-exome sequencing analysis	9
Revascularization reporting and procedural details in ostial stenting outcomes	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
The Causality between Gut Microbiota and Hypertension and Hypertension-related Complications: A Bidirectional Two-Sample Mendelian Randomization Analysis	8
Comparison of long-term prognoses of percutaneous coronary intervention via distal transradial and conventional transradial access for acute coronary syndrome	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
Chylopericardium after cardiac surgery: a rare yet serious complication	8
Ischemic stroke in patients with atrial fibrillation on oral anticoagulants: characteristics and long-term outcomes	8
L1 cell adhesion molecule: a novel potential biomarker for infective endocarditis patients at high risk of embolism and adverse events	8
Effects of empagliflozin in women and men with acute myocardial infarction: An analysis from the EMMY trial	8
Cardiomyopathies in children: An overview	8
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)	7
Early acute kidney injury after transcatheter aortic valve implantation: predictive value of currently available risk scores	7
In-depth computational analysis reveals the significant dysregulation of key gap junction proteins (GJPs) driving thoracic aortic aneurysm development	7
Cardiac involvement in athletes recently recovered from COVID-19	7
Left atrial volume changes during exercise stress echocardiography in heart failure and hypertrophic cardiomyopathy	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
Prevalence, incidence, and patterns of lipid-lowering treatment in Greece based on real-world nationwide data on 8,535,780 adults	7
Fluoroscopy integration module guides successful ablation in atrial fibrillation with coronary-pulmonary artery fistula	7
Effect of the COVID-19 pandemic on cardiac electrophysiological ablation procedures in Greece – Data from the Hellenic Society of Cardiology Ablation Registry	7
Clinical phenotypes according to diuretic combination in acute heart failure	7
Percutaneous management of a malfunctioning PFO Occluder using Faradrive sheath and EN Snare	7
Statin Therapy and Outcomes in Heart Failure with Mildly Reduced Ejection Fraction	6
Seasonal Variation in Sudden Cardiac Death: Insights from a Large United Kingdom Registry	6
Safety and efficacy of shortened dual antiplatelet therapy after complex percutaneous coronary intervention: A systematic review and meta-analysis	6

Men are from mars, but women are not from venus: The benefits of SGLT2 inhibitors after myocardial infarction are independent of gender	6
Right ventricular–pulmonary arterial coupling in patients with first acute myocardial infarction: an emerging post-revascularization triage tool	6
Long-term outcome in double-chambered right ventricle: a retrospective single-center study	6
Changes in the risk profile and outcomes of patients undergoing isolated coronary artery bypass grafting: A 23-year analysis of over 14000 patients	6
In memoriam: George L. Bakris (1952–2024)	6
Transcatheter closure of a postoperative iatrogenic pseudoaneurysm in a patient with congenital heart disease	6
Acute myocardial infarction complicated by cardiogenic shock in a patient with a single coronary artery	6
Prognostic impact of shock in patients with type A acute aortic syndrome. Results of a nationwide multicenter study	6
Assessing the relationship between monocyte-to-HDL cholesterol ratio and mortality in patients with hypertrophic cardiomyopathy	6
Artificial intelligence in the differential diagnosis of hypertrophic cardiomyopathy and physiological hypertrophy: a scoping review	6
Response to “Revascularization reporting and procedural details in ostial stenting outcomes”	6
Lifetime risk of cardiovascular disease stratified by traditional risk factors: Findings from the cohort of Tehran lipid and glucose study	6
Association of hematologic cancer with characteristics, causes, and outcomes of patients with cardiovascular admissions	6
Balancing Form and Function in the Modern Era of Scientific Publishing: To Appear and to (have) Appeal	5
Impact of three-month treatment with pitavastatin on arterial stiffness in patients with hypercholesterolemia: a prospective observational study	5
Eosinophilic myocarditis due to Toxocara infection	5
Two-year clinical outcomes of resorbable magnesium scaffold versus conventional drug-eluting stents in ST-segment elevation myocardial infarction: A propensity score matching analysis	5
Ageism in medicine: procrustean logic in healthcare	5
Retransplantation in Greece: Ethical and practical considerations	5
Obesity modifies the association between abnormal glucose metabolism and atrial fibrillation in older adults: a community-based longitudinal and prospective cohort study	5
SCORE2 versus HellenicSCORE II+ algorithms in detecting preclinical carotid atherosclerosis in a middle-aged general population sample in Greece	5
Bilateral coronary arteries with multiple giant pseudoaneurysms following the Takeuchi procedure	5
Single-lead ECG-based machine learning model for noninvasive detection of left ventricular hypertrophy in hypertension	5
Atrial fibrillation post CABG and the risk of arrhythmia recurrence: the AFRODITE study	5
A novel diagnostic tool to identify atrial endo-epicardial asynchrony using signal fingerprinting	5
Nationwide mortality trends from 2001 to 2020 in Greece: health policy implications under the scope of aging societies	5
Impact of the COVID-19 pandemic on CTO PCI: analysis from the PROGRESS-CTO registry	4
Comparative outcomes of aortic root preservation versus root replacement for acute type A aortic dissection: balancing survival, durability, and reoperation	4
30-day unplanned readmission rates and causes in patients hospitalised for acute coronary syndrome based on DANish CoMorbidity index for Acute Myocardial Infarction score	4
Pharmacological management of dilated cardiomyopathy in Duchenne muscular dystrophy: A systematic review	4
Chlorthalidone versus hydrochlorothiazide for preventing cardiovascular disease in hypertension: Is the case closed?	4
First cases of transcatheter edge-to-edge repair after orthotopic heart transplantation in Greece	4
The hemodynamic performance of balloon-expandable aortic bioprostheses in the elderly: a comparison between rapid deployment and transcatheter implantation	4
Prognostic benefits of early vascular surgical intervention in patients with major peripheral vascular complications following transcatheter aortic valve implantation	4
Cryoablation versus hybrid radiofrequency with high- and very-high-power short-duration catheter ablation for the treatment of paroxysmal atrial fibrillation	4
Dietary habits among 177,091 Greek schoolchildren by age, sex, weight status, region, and living area. A cross-sectional study	4
Left ventricular global longitudinal strain and cardiorespiratory fitness in patients with heart failure: Systematic review and meta-analysis	4
Transcatheter edge-to-edge repair in an octogenarian patient with massive tricuspid regurgitation: Release of the pseudoconstriction pattern and improvement in the right ventricular hemodynamics	4
Emerging links between cardiovascular disease and microplastics exposure – a narrative review	4
Discordance between remnant cholesterol and low-density lipoprotein cholesterol predicts cardiovascular disease: the Kailuan prospective cohort study	4
Under pressure: screening for heart failure in the older aged individuals	4
The stress hyperglycemia ratio improves the predictive ability of the GRACE score for in-hospital mortality in patients with acute myocardial infarction	4
Association of serum cytokines with coronary chronic total occlusion and their role in predicting procedural outcomes	4
Cardiorenal multimorbidity in hospitalized cardiology patients: The Hellenic Cardiorenal Morbidity Snapshot (HECMOS) study	4
Is it a steal or a squeeze?	4
Counting what counts: authorship, metrics, and impact in cardiology	4
Repeat revascularization after left main PCI vs CABG: are we measuring treatment failure or treatment behavior?	4
Robotic vs other surgery techniques for mitral valve repair and/or replacement: A systematic review and meta-analysis	4
Acute effectiveness and safety of the different mitral isthmus lines in the treatment of perimitral flutter with radiofrequency ablation	4
Coronary artery disease and its management in TAVI	4
Better performance of the APPLE score for the prediction of very early atrial fibrillation recurrence post-ablation	4
Acute coronary syndrome in a patient with diffuse coronary artery ectasia: From incidental echocardiographic finding to emergency revascularization	4
Cardiovascular pre-participation evaluation of male competitive athletes: results of a clinical and electrocardiographic screening program in southwestern Greece	4