John Parissis
National and Kapodistrian University of Athens
PathophysiologyInternal medicineEndocrinologyInotropeCardiologyIntensive care medicineArterial stiffnessNatriuretic peptideCardiogenic shockLevosimendanHeart failureCoronary artery diseasePulse wave velocityDiseaseAtrial fibrillationHeart diseaseIn patientMyocardial infarctionMedicineEjection fractionBlood pressure
443Publications
66H-index
26.6kCitations
Publications 451
Newest
#1Melpomeni Peppa (UoA: National and Kapodistrian University of Athens)H-Index: 6
#2George PavlidisH-Index: 13
Last. Aristotelis BamiasH-Index: 34
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OBJECTIVES Turner syndrome (TS) is associated with increased cardiovascular risk. We investigated whether hormone replacement therapy (HRT) affects endothelial function, arterial stiffness and myocardial deformation in women with TS. METHODS Twenty-five women with TS were studied in the estrogen phase of the HRT and two months after discontinuation of HRT. The following measurements were made: flow-mediated dilation (FMD) of the brachial artery, pulse wave velocity (PWV-Complior) and central sys...
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#1Ignatios Ikonomidis (UoA: National and Kapodistrian University of Athens)H-Index: 49
#2Dimitrios Vlastos (Imperial College London)
Last. Dimitrios Alexopoulos (UoA: National and Kapodistrian University of Athens)H-Index: 45
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We compared the effects of Heat-not-Burn cigarette (HNBC) to those of tobacco cigarette (Tcig), on myocardial, coronary and arterial function as well as on oxidative stress and platelet activation in 75 smokers. In the acute study, 50 smokers were randomised into smoking a single Tcig or a HNBC and after 60 min were crossed-over to the alternate smoking. For chronic phase, 50 smokers were switched to HNBC and were compared with an external group of 25 Tcig smokers before and after 1 month. Exhal...
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#1Anastasios Kartas (A.U.Th.: Aristotle University of Thessaloniki)H-Index: 5
#2Athanasios Samaras (A.U.Th.: Aristotle University of Thessaloniki)H-Index: 4
Last. George Giannakoulas (A.U.Th.: Aristotle University of Thessaloniki)H-Index: 19
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AIMS The aim of this study is to investigate the prognostic implications of the presence of heart failure (HF) across the range of left ventricular ejection fraction (LVEF) in patients with comorbid atrial fibrillation (AF). METHODS AND RESULTS We conducted a retrospective cohort study of 1063 patients (median age 76 years), discharged from the cardiology ward with a primary or secondary diagnosis of AF between 2015 and 2018. We used Cox proportional-hazards and spline models to examine the asso...
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#1Grigorios TsigkasH-Index: 16
Last. Dimitrios Velissaris (University of Patras)H-Index: 19
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The management of heart failure (HF) and atrial fibrillation (AF) in real-world practice remains a debating issue, while the number of HF patients with AF increase dramatically. While it is unclear if rhythm or rate control therapy is more beneficial and under which circumstances, anticoagulation therapy is the cornerstone of the AF-HF patients' approach. Vitamin-K antagonists were the gold-standard during the past, but currently their usage is limited in specific conditions. Non-vitamin K oral ...
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#1Nikolaos P.E. Kadoglou (UCY: University of Cyprus)H-Index: 9
#2John Parissis (UoA: National and Kapodistrian University of Athens)H-Index: 66
Last. Marialena Trivella (University of Oxford)H-Index: 25
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Numerous models and biomarkers have been proposed to estimate prognosis and improve decision-making in patients with acute heart failure (AHF). The present literature review provides a critical appraisal of externally validated prognostic models in AHF, combining clinical data and biomarkers. We perform a literature review of clinical studies, using the following terms: "acute heart failure," "acute decompensated heart failure," "prognostic models," "risk scores," "mortality," "death," "hospital...
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#1Vasiliki Bistola (UoA: National and Kapodistrian University of Athens)H-Index: 10
#2Panagiotis Simitsis (UoA: National and Kapodistrian University of Athens)H-Index: 5
Last. Gerasimos Filippatos (UoA: National and Kapodistrian University of Athens)H-Index: 129
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BACKGROUND The role of neurohormonal inhibition in chronic heart failure is well established. There is limited data on the effect of up-titration of renin angiotensin inhibition (RASi) and beta-blockers (BBs) on clinical outcomes of patients with worsening heart failure (HF) across the left ventricular ejection fraction (LVEF) spectrum. METHODS AND RESULTS We analyzed data from 2345 patients from BIOSTAT-CHF (80.9% LVEF<40%), who completed a 3-month up-titration period after recent worsening of ...
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#1Sotiria Liori (UoA: National and Kapodistrian University of Athens)H-Index: 1
#2Angelos Arfaras-Melainis (UoA: National and Kapodistrian University of Athens)H-Index: 4
Last. John Parissis (UoA: National and Kapodistrian University of Athens)H-Index: 66
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Cognitive impairment (CI) is an important comorbidity in patients with heart failure (HF). Its prevalence parallels the severity of heart failure, while it is an independent prognostic marker of adverse events. Various factors contribute to cognitive decline in HF, influencing self-care. There are no standardized screening methods for the diagnosis and management of these patients. The aim of the present manuscript is to provide an overview of the impact of cognitive impairment in HF, describe t...
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#1Argyrios Ntalianis (Alexandra Hospital)H-Index: 2
#2Christina Chrysohoou (UoA: National and Kapodistrian University of Athens)H-Index: 60
Last. John Kanakakis (UoA: National and Kapodistrian University of Athens)H-Index: 17
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The short-term mortality and rehospitalization rates after admission for acute heart failure (AHF) remain high, despite the high level of adherence to contemporary practice guidelines. Observational data from non-randomized studies in AHF strongly support the in-hospital administration of oral evidence-based modifying chronic heart failure (HF) medications (i.e., b-blockers, ACE inhibitors, mineralocorticoid receptor antagonists) to reduce morbidity and mortality. Interestingly, a well-designed ...
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#2Ignatios Ikonomidis (UoA: National and Kapodistrian University of Athens)H-Index: 49
Last. Gerasimos Filippatos (UoA: National and Kapodistrian University of Athens)H-Index: 129
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