Γιακουμής Μάριος

Σπουδές

• Υποψήφιος Διδάκτωρ, Ιατρική Σχολή, Εθνικό & Καποδιστριακό Πανεπιστήμιο Αθηνών
• Πτυχίο Ιατρικής, Στρατιωτική Σχολή Αξιωματικών Σωμάτων (ΣΣΑΣ), Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης (1999 - 2005)
• Πτυχίο Ιατρικής, Ιατρική Σχολή, Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης (1999 - 2005)
• Ευρωπαϊκό Δίπλωμα Γαστρεντερολογίας - Ηπατολογίας, European Board of Gastroenterology and Hepatology (EBGH) (2015)
• Ειδικότητα Γαστρεντερολογίας, Β' Γαστρεντερολογική Κλινική, Γενικό Νοσοκομείο Αθηνών «Ο Ευαγγελισμός» (2011 - 2015)
• Ειδικότητα Παθολογίας, Β' Παθολογική Κλινική, 401 Γενικό Στρατιωτικό Νοσοκομείο Αθηνών (2009 - 2011)

Επαγγελματική εμπειρία

• Ιδιωτικό ιατρείο, Δάφνη
• Επιμελητής, Γαστρεντερολογική Κλινική, 401 Γενικό Στρατιωτικό Νοσοκομείο Αθηνών (2017 - σήμερα)
• Συνεργάτης, Α' Γαστρεντερολογική Κλινική, Νοσοκομείο "Ερρίκος Ντυνάν"
• Συνεργάτης, Πολυϊατρείο "Medisalus"
• Επικεφαλής ιατρείου, Στρατόπεδο "Παπαφλέσσα", Καλαμάτα (2015 - 2017)
• Υπεύθυνος ιατρείων, Στρατιωτικές Μονάδες, Κέντρο Εκπαιδεύσεως Διαβιβάσεων (ΚΕΔΒ) & 525 ΜΚ/ΤΠ Πολυκάστρου (2006 - 2009)
• Εκπαιδευόμενος ιατρός, Σχολή Εφαρμογής Υγειονομικού, Γενικό Επιτελείο Στρατού (Γ.Ε.Σ.), 401 Γενικό Στρατιωτικό Νοσοκομείο Αθηνών (2005 - 2006)
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Μέλος συλλόγων

• Ελληνική Γαστρεντερολογική Εταιρεία (ΕΓΕ)
• European Board of Gastroenterology and Hepatology (EBGH)

Δημοσιεύσεις

• Galanopoulos, Michail & Giakoumis, Marios & Papadomichelakis, M & Kyriakos, Nikolaos & Liatsos, Christos. (2025). Direct percutaneous cholangioscopy via left lobe of the liver in the context of intrahepatic choledocholithiasis in a patient with Roux-en-Y hepatico-jejunostomy. Endoscopy. 57. S544-S544. 10.1055/s-0045-1806412. (2025)
• Galanopoulos, Michail & Giakoumis, Marios & Papadomichelakis, M & Kyriakos, Nikolaos & Liatsos, Christos. (2025). Postoperative pancreatic collection after peripheral pancreatectomy treated with drainage guided by endoscopic ultrasound. Endoscopy. 57. S555-S555. 10.1055/s-0045-1806443. (2025)
• Liatsos, Christos & Tzouvala, Maria & Michalopoulos, Georgios & Giouleme, Olga & Karmiris, Konstantinos & Kozompoli, Dimitra & Mousourakis, Konstantinos & Kyriakos, Nikolaos & Giakoumis, Marios & Striki, Athanasia & Karoubalis, Ioannis & Bellou, Georgia & Zacharopoulou, Eirini & Katsoula, Anastasia & Kalogirou, Maria & Viazis, Nikos. (2025). Efficacy and safety of tofacitinib for the treatment of moderate-to-severe ulcerative colitis in biologic-naive patients. European journal of gastroenterology & hepatology. 37. 10.1097/MEG.0000000000002926. (2025)
• Liatsos, Christos & Michalopoulos, George & Tzouvala, M & Giouleme, Olga & Kozompoli, Dimitra & Mousourakis, K & Kyriakos, Nikolaos & Giakoumis, Marios & Striki, A & Karoumpalis, I & Bellou, G & Zacharopoulou, Evangelie & Katsoula, Anastasia & Kalogirou, M & Viazis, Nikos. (2024). P951 Efficacy and safety of tofacitinib for the treatment of moderate- severe ulcerative colitis in biologic naïve patients. Journal of Crohn's and Colitis. 18. i1728-i1728. 10.1093/ecco-jcc/jjad212.1081. (2024)
• Liatsos, Christos & Papaefthymiou, Apostolis & Kyriakos, Nikolaos & Galanopoulos, Michail & Doulberis, Michael & Giakoumis, Marios & Petridou, Evangelia & Mavrogiannis, Christos & Rokkas, Theodore & Kountouras, Jannis. (2022). Helicobacter pylori , gastric microbiota and gastric cancer relationship: Unrolling the tangle. World Journal of Gastrointestinal Oncology. 14. 959-972. 10.4251/wjgo.v14.i5.959. (2022)
• Papaefthymiou, Apostolis & Kyriakos, Nikolaos & Giakoumis, Marios & Doulberis, Michael & Mylonas, Iordanis & Kountouras, Jannis & Liatsos, Christos. (2022). Acute Myopericarditis in a Patient With Ulcerative Colitis and the Role of Mesalamine: A Case Report. Gastroenterology nursing : the official journal of the Society of Gastroenterology Nurses and Associates. Publish Ahead of Print. 10.1097/SGA.0000000000000617. (2022)
• Nikolaos, Kyriakos & Papaefthymiou, Apostolis & Giakoumis, Marios & Mylonas, Iordanis & Galanopoulos, Michail & Kalafatis, Evagelos & Liatsos, Christos. (2021). Lateral/panoramic video capsule endoscopy system for small bowel diseases detection: a retrospective study. 10.13140/RG.2.2.21996.28801. (2021)
• Kyriakos, Nikolaos & Papaefthymiou, Apostolis & Giakoumis, Marios & Mantzaris, Gerasimos & Liatsos, Christos. (2021). Informed consent in inflammatory bowel disease: a necessity in real-world clinical practice. (2021)
• Kyriakos, Nikolaos & Papaefthymiou, Apostolis & Giakoumis, Marios & Galanopoulos, Michail & Galanis, Petros & Mylonas, Iordanis & Karatzas, P & Mantzaris, G & Liatsos, Christos. (2021). P654 Prevalence of Inflammatory Bowel Disease in young Greek Army male recruits from 2006 to 2018: a thirteen-year retrospective study from a tertiary center. Journal of Crohn's and Colitis. 15. S583-S584. 10.1093/ecco-jcc/jjab076.774. (2021)
• Kyriakos, Nikolaos & Papaefthymiou, Apostolis & Giakoumis, Marios & Galanopoulos, Michail & Galanis, Petros & Mylonas, Iordanis & Karatzas, Pantelis & Mantzaris, Gerasimos & Liatsos, Christos. (2021). Prevalence of inflammatory bowel disease in young Greek Army male recruits from 2006 to 2018: a 13-year retrospective study from a tertiary center. European journal of gastroenterology & hepatology. Publish Ahead of Print. 10.1097/MEG.0000000000002071. (2021)
• Liatsos, Christos & Papaefthymiou, Apostolis & Kyriakos, Nikolaos & Giakoumis, Marios & Galanopoulos, Michail & Petridou, Evangelia & Doulberis, Michael & Kountouras, Jannis. (2020). Correlation of registered drug packs in Greece with Maastricht V/Florence and Hellenic Helicobacter pylori infection treatment consensuses: A poor or a proper match?. Basic & Clinical Pharmacology & Toxicology. 127. 6-7. 10.1111/bcpt.13416. (2020)
• Liatsos, Christos & Papaefthymiou, Apostolis & Kyriakos, Nikolaos & Giakoumis, Marios & Tzouvala, M & Doulberis, Michael & Mavrogiannis, C & Kountouras, J. (2020). P704 The biennial direct pharmaceutical costs per treatment with biologics for the inflammatory bowel disease in Greece: A comparative calculation study. ECCO 2020 Liatsos C et al .pdf. (2020)
• Liatsos, Christos & Papaefthymiou, Apostolis & Kyriakos, Nikolaos & Giakoumis, Marios & Kountouras, Jannis & Galanopoulos, Michail & Apostolopoulos, Periklis & Georgopoulos, Sotirios & Mavrogiannis, Christos & Exadaktylos, Aristomenis & Srivastava, David & Rokkas, Theodore & Doulberis, Michael. (2020). Evaluation of the Direct Economic Cost per Eradication Treatment Regimen against Helicobacter pylori Infection in Greece: Do National Health Policy-Makers Need to Care?. Medicina. 56. 10.3390/medicina56030133. (2020)
• Kyriakos, Nikolaos & Papaefthymiou, Apostolis & Giakoumis, Marios & Papadomichelakis, Michail & Liatsos, Christos. (2020). Plummer-Vinson Syndrome in a Crohn’s disease patient. Arab Journal of Gastroenterology. 21. 10.1016/j.ajg.2020.01.006. (2020)
• Liatsos, Christos & Papaefthymiou, Apostolis & Kyriakos, Nikolaos & Giakoumis, Marios & Tzouvala, M & Doulberis, Michael & Mavrogiannis, C & Kountouras, J. (2020). P704 The biennial direct pharmaceutical costs per treatment with biologics for the inflammatory bowel disease in Greece: A comparative calculation study. Journal of Crohn's and Colitis. 14. S569-S571. 10.1093/ecco-jcc/jjz203.832. (2020)
• Papaefthymiou, Apostolis & Liatsos, Christos & Georgopoulos, Sotirios & Apostolopoulos, Pericles & Doulberis, Michael & Kyriakos, Nikolaos & Giakoumis, Marios & Papadomichelakis, Michael & Galanopoulos, Michail & Katsinelos, Panagiotis & Rokkas, Theodore & Kountouras, Jannis. (2019). Helicobacter pylori eradication regimens in an antibiotic high‐resistance European area: A cost‐effectiveness analysis. Helicobacter. 25. 10.1111/hel.12666. (2019)
• Papaefthymiou, Apostolis & Doulberis, Michael & Kountouras, Jannis & Kolokytha, Christina & Galanopoulos, Michail & Liatsos, Christos & Kyriakos, Nikolaos & Giakoumis, Marios & Papadomichelakis, Michail & Polyzos, Stergios & Kotronis, Georgios & Katsinelos, Panagiotis. (2019). Impact of occupational stress on irritable bowel syndrome pathophysiology and potential management in active duty noncombat Greek military personnel: a multicenter prospective survey. European Journal of Gastroenterology & Hepatology. 31. 1. 10.1097/MEG.0000000000001439. (2019)
• Liatsos, Christos & Papaefthymiou, Apostolis & Kyriakos, Nikolaos & Giakoumis, Marios & Galanopoulos, Michail & Apostolopoulos, Periklis & Georgopoulos, Sotirios & Rokkas, Theodore. (2018). The economic cost per treatment for the Helicobacter pylori eradication treatment schemes in Greece.. 10.13140/RG.2.2.14966.04169. (2018)
• Viazis, Nikos & Giakoumis, Marios & Galanopoulos, Michail & Varytimiadis, Lazaros & Karatzas, Pantelis & Triantos, Christos & Tsolias, Chrisostomos & Theocharis, Georgios & Mantzaris, Gerassimos. (2017). Predictors of Tissue Healing in Ulcerative Colitis Patients Treated with Anti-TNF. Gastroenterology. 152. S386. 10.1016/S0016-5085(17)31530-5. (2017)
• Viazis, Nikos & Giakoumis, Marios & Koukouratos, Theodoros & Anastasiou, Ioannis & Katopodi, Konstantina & Kechagias, Georgios & Anastasopoulos, Elias & Saprikis, Efstathios & Chanias, Michail & Tribonias, George & Karamanolis, Dimitrios. (2013). P447 Long term benefit of one year infliximab administration for the treatment of chronic refractory pouchitis. Journal of Crohn's & colitis. 24. 10.1016/j.crohns.2013.02.018. (2013)
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