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A. Protopapas · SciRah

Researcher profile · Semantic Scholar

A. Protopapas

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A. Protopapas — researcher profile on SciRah

h-index: 10
Works: 54
Citations: 291

Most-cited papers

Nonalcoholic fatty liver disease in lean subjects: Prognosis, outcomes and management
Lampros Chrysavgis, E. Ztriva, A. Protopapas, K. Tziomalos +1 more
2020World Journal of Gastroenterology46 citations Open access
Semantic Scholar
Is propofol the optimal sedative in gastrointestinal endoscopy?
D. Stogiannou, A. Protopapas, Andreas N. Protopapas, Konstantinos Tziomalos
2018Acta gastro-enterologica Belgica44 citations
Semantic Scholar
Validating and expanding the Baveno VI criteria for esophageal varices in patients with advanced liver disease: a multicenter study
A. Protopapas, Theodora Mylopoulou, V. Papadopoulos, Kiriaki Vogiatzi +2 more
2019Annals of gastroenterology : quarterly publication of the Hellenic Society of Gastroenterology24 citations Open access
Semantic Scholar
Greek Physicians' Perceptions on Generic Drugs in the Era of Austerity
G. Labiris, M. Fanariotis, C. Kastanioti, G. Alexias +3 more
2015Scientifica22 citations Open access
Semantic Scholar
Anticoagulation in Patients with Liver Cirrhosis: Friend or Foe?
A. Protopapas, C. Savopoulos, L. Skoura, I. Goulis
2023Digestive Diseases and Sciences14 citations Open access
Semantic Scholar
Post-COVID-19 and Irritable Bowel Syndrome: A Literature Review
D. Paramythiotis, E. Karlafti, M. Didagelos, M. Fafouti +6 more
2023Medicina13 citations Open access
Semantic Scholar
Alcohol consumption in patients with nonalcoholic fatty liver disease: yes, or no?
A. Protopapas, E. Cholongitas, Lampros Chrysavgis, K. Tziomalos
2021Annals of gastroenterology : quarterly publication of the Hellenic Society of Gastroenterology11 citations Open access
Semantic Scholar
Endoscopic sedation practices of Greek gastroenterologists: a nationwide survey
A. Protopapas, Evangelos Stournaras, G. Neokosmidis, D. Stogiannou +2 more
2020Annals of gastroenterology : quarterly publication of the Hellenic Society of Gastroenterology11 citations Open access
Semantic Scholar
Elevated Levels of Alveolar Nitric Oxide May Indicate Presence of Small Airway Inflammation in Patients with Inflammatory Bowel Disease
A. Protopapas, S. Vradelis, Theodoros Karampitsakos, P. Steiropoulos +2 more
2019Lung11 citations
Semantic Scholar
DURA CENSOR SED CENSOR: A REVIEWER’S AUDIT OF 10 YEARS IN THE JOURNALS OF THE EUROPEAN ASSOCIATION FOR CARDIO-THORACIC SURGERY
A. Protopapas, H. Ashrafian, T. Athanasiou
201411 citations
Semantic Scholar
Drug-Induced Liver Injury in Hospitalized Patients during SARS-CoV-2 Infection
E. Karlafti, D. Paramythiotis, K. Pantazi, V. Georgakopoulou +6 more
2022Medicina10 citations Open access
Semantic Scholar
Significant Differences in IBD Care and Education across Europe: Results of the Pan-European VIPER Survey
J. Kral, R. Nakov, V. Lánská, B. Barberio +34 more
2022Digestive Diseases10 citations
Semantic Scholar
The Prevalence of Gastrointestinal Bleeding in COVID-19 Patients: A Systematic Review and Meta-Analysis
E. Karlafti, Dimitrios Tsavdaris, Evangelia Kotzakioulafi, A. Protopapas +5 more
2023Medicina8 citations Open access
Semantic Scholar
Comparative Assessment of Endoscopic Ultrasound-Guided Biopsies vs. Percutaneous Biopsies of Pancreatic Lesions: A Systematic Review and Meta-Analysis of Diagnostic Performance
D. Paramythiotis, E. Karlafti, Dimitrios Tsavdaris, Konstantinos Arvanitakis +6 more
2024Journal of Clinical Medicine7 citations Open access
Semantic Scholar
Hepatic Fibrosis Is a Risk Factor for Greater Severity and Worse Outcome of Acute Ischemic Stroke
E. Ztriva, A. Protopapas, P. Mentizis, Anastasios Papadopoulos +9 more
2022Journal of Clinical Medicine7 citations Open access
Semantic Scholar
The effect of bronchodilation and spirometry on fractional exhaled nitric oxide (FeNO50), bronchial NO flux (JawNO) and alveolar NO concentration (CANO) in children and young adults
T. Karampitsakos, A. Protopapas, Maria Gianoloudi, Vassileios P Papadopoulos +3 more
2018Journal of Asthma6 citations
Semantic Scholar
Community and hospital-acquired Gram-negative bloodstream infections in non-ICU patients.
Eirini Keskilidou, Maria Kyziroglou, G. Meletis, Alexandra Tsankof +7 more
2025American Journal of Infection Control5 citations
Semantic Scholar
Ampullary Large-Cell Neuroendocrine Carcinoma, a Diagnostic Challenge of a Rare Aggressive Neoplasm: A Case Report and Literature Review
E. Karlafti, Maria Charalampidou, Georgia Fotiadou, Ioanna Abba Deka +7 more
2022Diagnostics5 citations Open access
Semantic Scholar
Microvesicle Tissue Factor Procoagulant Activity Is Elevated and Correlated With Disease Severity in Patients With Cirrhosis
A. Protopapas, Anna Takardaki, Nefeli Protopapa, Ioanna Papagiouvanni +4 more
2024Liver international (Print)4 citations Open access
Semantic Scholar
Clostridioides difficile infection in patients with and without COVID-19 during the pandemic: a retrospective cohort study from a tertiary referral hospital.
Alexandra Tsankof, A. Protopapas, P. Mantzana, E. Protonotariou +4 more
2024Anaerobe4 citations
Semantic Scholar
Cardiometabolic effects of direct-acting antivirals in patients with hepatitis C
G. Neokosmidis, A. Protopapas, D. Stogiannou, Athanasios Filippidis +1 more
2022Gastroenterology & hepatology3 citations
Semantic Scholar
Estimation of glomerular filtration rate in patients with cirrhosis: evaluation of equations currently used in clinical practice and validation of Royal Free Hospital cirrhosis glomerular filtration rate
A. Protopapas, Ioanna Papagiouvanni, N. Fragkou, Emmanouil Alevroudis +2 more
2020European Journal of Gastroenterology and Hepathology3 citations
Semantic Scholar
Clinical and epidemiological characteristics of hepatitis C virus-infected people who inject drugs: a Greek descriptive analysis
H. Kranidioti, Christina Chatzievagelinou, A. Protopapas, M. Papatheodoridi +13 more
2018Annals of gastroenterology : quarterly publication of the Hellenic Society of Gastroenterology3 citations Open access
Semantic Scholar
The effect of bronchodilation and spirometry on exhaled nitric oxide
Theodoros Karampitsakos, A. Protopapas, Maria Gianoloudi, A. Chatzimichail +1 more
20163 citations
Semantic Scholar
Elevated levels of alveolar nitric oxide in patients with inflammatory bowel disease
A. Protopapas, S. Vradelis, Theodoros Karampitsakos, A. Chatzimichail +1 more
20162 citations
Semantic Scholar
Characterization of the Gastric Antrum Microbiome in Helicobacter pylori-Negative Individuals: Insights from a Greek Population Using 16S rRNA Next-Generation Sequencing
Asimoula Kavvada, Georgia Gioula, Andreas N. Protopapas, A. Protopapas +4 more
2026Pathogens1 citations Open access
Semantic Scholar
Capillary microvascular function in patients with liver cirrhosis: a nailfold video-capillaroscopy study
Ioanna Papagiouvanni, Marieta P. Theodorakopoulou, A. Protopapas, T. Dimitroulas +4 more
2025Annals of gastroenterology : quarterly publication of the Hellenic Society of Gastroenterology1 citations Open access
Semantic Scholar
GS-004 Development of portal hypertension after non-cirrhotic non-tumoral recent portal vein thrombosis (RPVT). A long-term follow-up study
Berta Bartrolí Alabau, A. Plessier, Fabian Betancourt Sánchez, A. Payancé +36 more
2025Journal of Hepatology1 citations
Semantic Scholar
Helicobacter pylori infection diagnosis and management: current practices of Greek gastroenterologists
A. Protopapas, Ioanna Papagiouvanni, Andreas N. Protopapas, I. Goulis
2023Annals of gastroenterology : quarterly publication of the Hellenic Society of Gastroenterology1 citations
Semantic Scholar
Autoimmune hepatitis (AIH) in Greece: first results from the Hellenic autoimmune liver diseases study group of the Hellenic association for the study of the liver (HASL)
N. Gatselis, C. Triantos, G. Papatheodoridis, P. Arvaniti +29 more
2023Journal of Hepatology1 citations
Semantic Scholar
Tu1478 – Rest-B Study: Liver Fibrosis Regression Assessed by Transient Elastography (TE) in Patients with Chronic Hepatitis B (CHB) on Long Term Maintenance Therapy with Tenofovir Disoproxil Fumarate (TDF)
H. Kranidioti, K. Koustenis, A. Protopapas, T. Voulgaris +6 more
2019Gastroenterology1 citations Open access
Semantic Scholar
Gallstones and gallbladder wall thickening in patients with cirrhosis: Prevalence and clinical impact
Alexandra Tsankof, A. Protopapas, V. Kyritsi, Christiana Gogou +6 more
2026World Journal of Clinical Cases0 citations
Semantic Scholar
DESARROLLO DE HIPERTENSIÓN PORTAL TRAS UNA TROMBOSIS PORTAL AGUDA (TPA) NO CIRRÓTICA Y NO TUMORAL. ESTUDIO MULTICÉNTRICO VALDIG
Berta Bartrolí-Alabau, Aurélie Plessier, Fabian Betancourt Sánchez, A. Payancé +38 more
2026Gastroenterology & hepatology0 citations
Semantic Scholar
Antithrombotic therapy may be associated with earlier colon cancer detection: a retrospective study.
A. Protopapas, V. Kyritsi, E. Trypaki, Nefeli Protopapa +5 more
2025Arab Journal of Gastroenterology0 citations Open access
Semantic Scholar
Universal screening for viral hepatitis in all inpatients of a university internal medicine department
A. Protopapas, Nefeli Protopapa, V. Kyritsi, Athanasios Filippidis +2 more
2025Annals of gastroenterology : quarterly publication of the Hellenic Society of Gastroenterology0 citations Open access
Semantic Scholar
Authors' reply to letter "Community and hospital-acquired gram-negative bloodstream infections in non-ICU patients: Addressing key limitations".
Eirini Keskilidou, Maria Kyziroglou, G. Meletis, Alexandra Tsankof +7 more
2025American Journal of Infection Control0 citations
Semantic Scholar
FRI-117 Acute kidney injury and infections as the main determinants of outcome in hospitalised patients with liver cirrhosis: a retrospective cohort from a tertiary hospital
A. Protopapas, Alexandra Tsankof, V. Kyritsi, Christiana Gogou +5 more
2024Journal of Hepatology0 citations
Semantic Scholar
Outpatient management after hospitalisation for acute decompensation of cirrhosis: A practical guide
A. Protopapas, Alexandra Tsankof, Ioanna Papagiouvanni, G. Kaiafa +3 more
2024World Journal of Hepatology0 citations
Semantic Scholar
WED-121-YI Increased procoagulant activity of tissue factor-expressing microvesicles in patients with liver cirrhosis
A. Protopapas, Anna Takardaki, Nefeli Protopapa, Ioanna Papagiouvanni +4 more
2024Journal of Hepatology0 citations
Semantic Scholar
DOP37 Large differences in IBD care and education across Europe, first results of the pan-European VIPER survey
J. Král, R. Nakov, V. Lánská, B. Barberio +33 more
20210 citations Open access
Semantic Scholar
HMO-1 Variation in IBD care and education across Europe results from a pan-European survey
A. Protopapas, A. Pisani, B. Barberio, C. Frias-Gomes +28 more
2021Posters – highly commended0 citations Open access
Semantic Scholar
Sa314 PREDICTORS OF LIVER STIFFNESS CHANGES IN CHRONIC HEPATITIS B (CHB) PATIENTS UNDER LONG-TERM THERAPY WITH TENOFOVIR DISOPROXIL FUMARATE (TDF)
H. Kranidioti, A. Protopapas, T. Voulgaris, Chrisostomos Tsolias +6 more
20210 citations
Semantic Scholar
Μεταβολές στα λιπίδια της μεμβράνης των ερυθρών αιμοσφαιρίων σε ασθενείς με κίρρωση του ήπατος.
A. Protopapas
20210 citations
Semantic Scholar
Hepatic fibrosis is associated with higher in-hospital mortality in patients admitted with acute ischemic stroke
E. Ztriva, Georgios Neokosmidis, A. Papadopoulos, D. Pilalas +10 more
2021Atherosclerosis0 citations
Semantic Scholar
Diagnosing a Patient with Erdheim-Chester Disease during the COVID-19 Pandemic
G. Kaiafa, D. Pilalas, T. Koletsa, S. Daios +5 more
2021Medicina0 citations Open access
Semantic Scholar
Sa1524 FACTORS THAT MAY AFFECT THE CHANGES OF LIVER STIFFNESS MEASUREMENTS ASSESSED BY TRANSIENT ELASTOGRAPHY (TE) IN PATIENTS WITH CHRONIC HEPATITIS B (CHB) ON LONG-TERM THERAPY WITH TENOFOVIR DISOPROXIL FUMARATE (TDF).
H. Kranidioti, A. Protopapas, T. Voulgaris, Chrisostomos Tsolias +7 more
20200 citations
Semantic Scholar
UPPER GASTROINTESTINAL BLEEDING (UGIB)- TRANSFUSION POLICIES AND TIMING OF ENDOSCOPY. ARE GUIDELINE RECOMMENDATIONS INCORPORATED IN "REAL WORLD" CLINICAL PRACTICE? A NORTHERN GREECE, SINGLE-CENTRE, 1 YEAR EXPERIENCE
Evangelos Stournaras, A. Protopapas, G. Neokosmidis, D. Stogiannou +4 more
2019Endoscopy0 citations
Semantic Scholar
Pleurotomy and pleural complications in modern coronary surgery
A. Protopapas, Zochios
20170 citations
Semantic Scholar
Tumour thrombi in the cavae
A. Protopapas, H. Ashrafian, T. Athanasiou
20160 citations
Semantic Scholar
Dura censor sed censor: A reviewer’s ongoing audit of 11 years in the journals of the European Association for Cardio-thoracic Surgery
A. Protopapas, H. Ashrafian, T. Athanasiou
20150 citations
Semantic Scholar

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Andreas N. Protopapas — researcher profile on SciRah
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I. Goulis×8
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L. Skoura×7
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Ioanna Papagiouvanni

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