Konstantinos C. Christodoulou

Mr. Konstantinos C. Christodoulou

orcid

Research Focus & Metrics

Academic Career Length

7Years (2020-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

View All Publications
1 September 2024 in Vasa
Verified
Journal Article
Closed access
SWSimon Wolf
Simon Wolf
SBStefano Barco
Stefano Barco
MNMarcello Di Nisio
Marcello Di Nisio
CMCharles E. Mahan
Charles E. Mahan
KCKonstantinos C. Christodoulou
Konstantinos C. Christodoulou
LVLuca Valerio
Luca Valerio
Summary: Deep vein thrombosis (DVT) is a cause of considerable morbidity worldwide. It is a common clinical disease in the daily practice of several medical disciplines including general medicine, angiology, and internal medicine, as well as of interest to public health because of its preventability and its sensitivity to secular changes in the distribution of population risk factors. In this review we present a comprehensive overview of the epidemiological features of DVT, including incidence and risk factors. Additionally, we give an overview of the burden that DVT poses on modern health care systems.

14 June 2024 in European Heart Journal
Verified
Journal Article
Closed access
PDF file
IFIoannis Farmakis
Ioannis Farmakis
KCKonstantinos C. Christodoulou
Konstantinos C. Christodoulou
Lukas HobohmLukas Hobohm
Lukas Hobohm
SKStavros Konstantinides
Stavros Konstantinides
LVLuca Valerio
Luca Valerio
Studies have suggested that statins may be associated with reduced risk of venous thromboembolism (VTE). The aim of the current study was to assess the evidence regarding the comparative effect of all lipid-lowering therapies (LLT) in primary VTE prevention. After a systematic search of PubMed, CENTRAL, and Web of Science up until 2 November 2022, randomized controlled trials (RCT) of statins (high- or low-/moderate-intensity), ezetimibe, or proprotein convertase subtilisin/kexin type 9 inhibitors (PCSK9i) were selected. An additive component network meta-analysis to compare VTE risk during long-term follow-up across different combinations of LLT was performed. Forty-five RCTs (n = 254 933 patients) were identified, reporting a total of 2084 VTE events. Compared with placebo, the combination of PCSK9i with high-intensity statin was associated with the largest reduction in VTE risk (risk ratio [RR] 0.59; 95% confidence interval [CI] 0.43–0.80), while there was a trend towards reduction for high-intensity (0.84; 0.70–1.02) and low-/moderate-intensity (0.89; 0.79–1.00) statin monotherapy. Ezetimibe monotherapy did not affect the VTE risk (1.04; 0.83–1.30). There was a gradual increase in the summary effect of VTE reduction with increasing intensity of the LLT. When compared with low-/moderate-intensity statin monotherapy, the combination of PCSK9i and high-intensity statin was significantly more likely to reduce VTE risk (0.66; 0.49–0.89). The present meta-analysis of RCTs suggests that LLT may have a potential for VTE prevention, particularly in high-intensity dosing and in combination therapy. Summary of trials included and effects of lipid lowering therapies (LLT) combinations against placebo, as the reference group, on VTE risk in the additive component network meta-analysis.

14 May 2025 in European Journal of Preventive Cardiology
Verified
Journal Article
Open access
LVLuca Valerio
Luca Valerio
Thomas GrochtdreisThomas Grochtdreis
Thomas Grochtdreis
AMAnna C Mavromanoli
Anna C Mavromanoli
IFIoannis Farmakis
Ioannis Farmakis
CAChristina Abele
Christina Abele
SKStavros Konstantinides
Stavros Konstantinides
Aims: It has not been conclusively established whether and to what extent pulmonary embolism (PE) affects health-related quality of life (HrQoL). We aimed to assess the long-term independent association of PE with HrQoL to provide reference values for interventional studies and support quantification of the burden of PE in terms of quality- or disability-adjusted life years (QALYs and DALYs). Methods and results: A total of 1005 patients from a prospective multicenter study, followed 3 and 12 months after PE, were successfully matched to 3058 individuals from the general population of the same country based on age, sex, and key comorbidities. Differences between acute PE survivors and matched controls in the ordinal EQ-5D-5L HrQoL dimensions were assessed using multivariable ordinal regression, in the HrQoL index (reflecting overall HrQoL) using multivariable-adjusted mixed linear regression. Both multiple imputation and complete case analysis were performed. Compared with controls, patients reported worse HrQoL in the dimensions self-care, usual activities, and anxiety/depression, and worse HrQoL index at both 3 [adjusted difference −0.04 (95% CI: −0.06, −0.039) in a range from 0 to 1] and 12 months [−0.02 (95% CI: −0.04, −0.01)] in the imputation analysis. Complete case analysis showed similar results. The annual disability weight of PE for DALY calculation was conservatively estimated at 0.03 (95% CI: 0.02, 0.04). Conclusion: PE was independently associated with a moderate decrease in HrQoL, which persisted 12 months after the acute episode despite partial recovery over time. This degree of impairment is comparable to that imposed by several other cardiopulmonary diseases.

Verified
Journal Article
Open access
PDF file
Theodora Maria StougiannouTheodora Maria Stougiannou
Theodora Maria Stougiannou
KCKonstantinos C. Christodoulou
Konstantinos C. Christodoulou
IDIoannis Dimarakis
Ioannis Dimarakis
DMDimitrios Mikroulis
Dimitrios Mikroulis
Dimos KarangelisDimos Karangelis
Dimos Karangelis
Despite improvements in contemporary medical and surgical therapies, cardiovascular disease (CVD) remains a significant cause of worldwide morbidity and mortality; more specifically, ischemic heart disease (IHD) may affect individuals as young as 20 years old. Typically managed with guideline-directed medical therapy, interventional or surgical methods, the incurred cardiomyocyte loss is not always completely reversible; however, recent research into various stem cell (SC) populations has highlighted their potential for the treatment and perhaps regeneration of injured cardiac tissue, either directly through cellular replacement or indirectly through local paracrine effects. Different stem cell (SC) types have been employed in studies of infarcted myocardium, both in animal models of myocardial infarction (MI) as well as in clinical studies of MI patients, including embryonic stem cells (ESCs) and induced pluripotent stem cells (iPSCs), Muse cells, multipotent stem cells such as bone marrow-derived cells, mesenchymal stem cells (MSCs) and cardiac stem and progenitor cells (CSC/CPCs). These have been delivered as is, in the form of cell therapies, or have been used to generate tissue-engineered (TE) constructs with variable results. In this text, we sought to perform a narrative review of experimental and clinical studies employing various stem cells (SC) for the treatment of infarcted myocardium within the last two decades, with an emphasis on therapies administered through thoracic incision or through percutaneous coronary interventions (PCI), to elucidate possible mechanisms of action and therapeutic effects of such cell therapies when employed in a surgical or interventional manner.

1 January 2021 in Journal of Shoulder and Elbow Surgery
Verified
Journal Article
Closed access
KCKonstantinos C. Christodoulou
Konstantinos C. Christodoulou
DKDespoina D. Kakagia
Despoina D. Kakagia
VGVasileios G. Galanis
Vasileios G. Galanis
GTGregory I. Tsoucalas
Gregory I. Tsoucalas
AFAliki Fiska
Aliki Fiska

26 June 2023 in Cureus
Verified
Journal Article
Open access
PDF file
KCKonstantinos C. Christodoulou
Konstantinos C. Christodoulou
DSDimitrios Stakos
Dimitrios Stakos
VAVassiliki Androutsopoulou
Vassiliki Androutsopoulou
MCMaria Chourmouzi-Papadopoulou
Maria Chourmouzi-Papadopoulou
GTGregory Tsoucalas
Gregory Tsoucalas
AFAliki Fiska
Aliki Fiska
In coronary artery disease, the presence of Vieussens’ arterial ring (VAR), a ring-shaped anastomosis between the conus branch of the right coronary artery with the left anterior descending artery (LAD), will allow blood flow to return to the obstructed coronary system. We have conducted a literature review, aiming to collect all the existing information about the documented VAR cases and any related pathological conditions. A total of 54 studies entered the review, including 56 patients. The mean age of the patients was 56.12 ± 16.2 years. Angina was present in 53.6% of the patients, with 7.2% of the cases being asymptomatic. Coronary artery disease outweighed (58.9%) as the patients’ most frequent diagnosis. We propose a novel VAR anatomical classification, based on the sites of origin and termination of its course, with six distinct types, for a better understanding and surgical management of VAR. Type IA, originating from the conus branch and terminating in the proximal segment of the LAD was most frequently reported (51.8%). The recognition and the subsequent evaluation of the ring’s anatomy and course are crucial for a customized clinical intervention. When right and left coronary angiographies fail to reveal any collateral circulation, selective conus artery catheterization should be in order. The proposed classification offers a manageable and comprehensive context for the assessment, evaluation and planning of therapeutic strategies of VAR and sets a new terminology frame for treatment guidelines.