DIMITRIOS SCHIZAS

Dr. DIMITRIOS SCHIZAS

First Department of Surgery, National and Kapodistrian University of Athens, Athens, Greece
orcid

Research Focus & Metrics

Academic Career Length

17Years (2010-Present)

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

Representative Publications

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1 June 2020 in Cancer Treatment Reviews
Verified
Journal Article
Closed access
DIMITRIOS SCHIZASDIMITRIOS SCHIZAS
DIMITRIOS SCHIZAS
Nikolaos CharalampakisNikolaos Charalampakis
Nikolaos Charalampakis
Christo KOLEChristo KOLE
Christo KOLE
PEPanagiota Economopoulou
Panagiota Economopoulou
EKEvangelos Koustas
Evangelos Koustas
MKMichalis V. Karamouzis
Michalis V. Karamouzis

Verified
Journal Article
Open access
PDF file
DSDimitrios Stefanoudakis
Dimitrios Stefanoudakis
Maximos FrountzasMaximos Frountzas
Maximos Frountzas
DIMITRIOS SCHIZASDIMITRIOS SCHIZAS
DIMITRIOS SCHIZAS
Nikolaos V. MichalopoulosNikolaos V. Michalopoulos
Nikolaos V. Michalopoulos
ADAlexandra Drakaki
Alexandra Drakaki
KTKonstantinos G Toutouzas
Konstantinos G Toutouzas
The present review demonstrates the major tumor suppressor genes, including TP53, CDKN2A and SMAD4, associated with pancreatic cancer. Each gene’s role, prevalence and impact on tumor development and progression are analyzed, focusing on the intricate molecular landscape of pancreatic cancer. In addition, this review underscores the prognostic significance of specific mutations, such as loss of TP53, and explores some potential targeted therapies tailored to these molecular signatures. The findings highlight the importance of genomic analyses for risk assessment, early detection and the design of personalized treatment approaches in pancreatic cancer. Overall, this review provides a comprehensive analysis of the molecular intricacies of pancreatic tumors, paving the way for more effective and tailored therapeutic interventions.

4 October 2020 in Cancers
Verified
Journal Article
Open access
PDF file
Christo KOLEChristo KOLE
Christo KOLE
Nikolaos CharalampakisNikolaos Charalampakis
Nikolaos Charalampakis
STSergios Tsakatikas
Sergios Tsakatikas
MVMichail Vailas
Michail Vailas
Dimitrios MorisDimitrios Moris
Dimitrios Moris
DIMITRIOS SCHIZASDIMITRIOS SCHIZAS
DIMITRIOS SCHIZAS
Hepatocellular carcinoma (HCC) is one of one of the most frequent liver cancers and the fourth leading cause of cancer-related mortality worldwide. Current treatment options such as surgery, neoadjuvant chemoradiotherapy, liver transplantation, and radiofrequency ablation will benefit only a very small percentage of patients. Immunotherapy is a novel treatment approach representing an effective and promising option against several types of cancer. The aim of our study is to present the currently ongoing clinical trials and to evaluate the efficacy of immunotherapy in HCC. In this paper, we demonstrate that combination of different immunotherapies or immunotherapy with other modalities results in better overall survival (OS) and progression-free survival (PFS) compared to single immunotherapy agent. Another objective of this paper is to demonstrate and highlight the importance of tumor microenvironment as a predictive and prognostic marker and its clinical implications in immunotherapy response.

Verified
Journal Article
Open access
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EKEvgenia Kotsifa
Evgenia Kotsifa
CVChrysovalantis Vergadis
Chrysovalantis Vergadis
MVMichail Vailas
Michail Vailas
Nikolaos MachairasNikolaos Machairas
Nikolaos Machairas
Stylianos KykalosStylianos Kykalos
Stylianos Kykalos
DIMITRIOS SCHIZASDIMITRIOS SCHIZAS
DIMITRIOS SCHIZAS
Hepatocellular carcinoma (HCC) is the most common primary liver malignancy. It is principally associated with liver cirrhosis and chronic liver disease. The major risk factors for the development of HCC include viral infections (HBV, HCV), alcoholic liver disease (ALD,) and non-alcoholic fatty liver disease (NAFLD). The optimal treatment choice is dictated by multiple variables such as tumor burden, liver function, and patient’s health status. Surgical resection, transplantation, ablation, transarterial chemoembolization (TACE), and systemic therapy are potentially useful treatment strategies. TACE is considered the first-line treatment for patients with intermediate stage HCC. The purpose of this review was to assess the indications, the optimal treatment schedule, the technical factors associated with TACE, and the overall application of TACE as a personalized treatment for HCC.

29 June 2022 in Cancers
Verified
Journal Article
Open access
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SEStepan M. Esagian
Stepan M. Esagian
IZIoannis A. Ziogas
Ioannis A. Ziogas
KSKonstantinos Skarentzos
Konstantinos Skarentzos
Ioannis KatsarosIoannis Katsaros
Ioannis Katsaros
Georgios TsoulfasGeorgios Tsoulfas
Georgios Tsoulfas
DIMITRIOS SCHIZASDIMITRIOS SCHIZAS
DIMITRIOS SCHIZAS
Robot-assisted minimally invasive esophagectomy (RAMIE) was introduced as a further development of the conventional minimally invasive esophagectomy, aiming to further improve the high morbidity and mortality associated with open esophagectomy. We aimed to compare the outcomes between RAMIE and open esophagectomy, which remains a popular approach for resectable esophageal cancer. Ten studies meeting our inclusion criteria were identified, including five retrospective cohort, four prospective cohort, and one randomized controlled trial. RAMIE was associated with significantly lower rates of overall pulmonary complications (odds ratio (OR): 0.38, 95% confidence interval (CI): [0.26, 0.56]), pneumonia (OR: 0.39, 95% CI: [0.26, 0.57]), atrial fibrillation (OR: 0.53, 95% CI: [0.29, 0.98]), and wound infections (OR: 0.20, 95% CI: [0.07, 0.57]) and resulted in less blood loss (weighted mean difference (WMD): −187.08 mL, 95% CI: [−283.81, −90.35]) and shorter hospital stays (WMD: −9.22 days, 95% CI: [−14.39, −4.06]) but longer operative times (WMD: 69.45 min, 95% CI: [34.39, 104.42]). No other statistically significant difference was observed regarding surgical and short-term oncological outcomes. Similar findings were observed when comparing totally robotic procedures only to OE. RAMIE is a safe and feasible procedure, resulting in decreased cardiopulmonary morbidity, wound infections, blood loss, and shorter hospital stays compared to open esophagectomy.

9 January 2020 in Current Pharmaceutical Design
Verified
Journal Article
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GVGeorgios Vlachopanos
Georgios Vlachopanos
DIMITRIOS SCHIZASDIMITRIOS SCHIZAS
DIMITRIOS SCHIZAS
NHNatasha Hasemaki
Natasha Hasemaki
AGArgyrios Georgalis
Argyrios Georgalis
: Contrast-induced acute kidney injury (CIAKI) is a severe complication associated with the use of iodinated contrast media (CM); a sudden but potentially reversible fall in glomerular filtration rate (GFR) typically occurring 48-72 hours after CM administration. Principal risk factors related with the presentation of CIAKI are preexisting chronic kidney disease and diabetes mellitus. Studies on CIAKI present considerable complexity because of differences in CM type and dose, controversies in definition and baseline comorbidities. Despite that, it should be noted that CIAKI poses a serious health problem because it is a very common cause of hospitalacquired AKI, linked to increased morbidity and mortality and utilizing growing healthcare resources. The pathogenesis of CIAKI is heterogeneous and, thus, is incompletely understood. Three basic mechanisms appear to simultaneously occur for CIAKI development: Renal vasoconstriction and medullary hypoxia, tubular cell toxicity and reactive oxygen species formation. The relative contribution of each one of these mechanisms is unknown but they ultimately lead to epithelial and endothelial cell apoptosis and GFR reduction. Further research is needed in order to better clarify CIAKI pathophysiology and accordingly introduce effective preventive and therapeutic strategies.