Profile

• MD, PhD, FEBGH, FESGE

Medical degree

• National & Kapodistrian University of Athens (NKUoA), 1988

Post-graduate training and degrees

• Specialization in Gastroenterology and Hepatology, Gennimatas General Hospital of Athens and Elpis General Hospital of Athens, 1996
• Interventional Endoscopy and ERCP in Gastroenterology Unit, Blackpool Victoria Hospital NHS Trust Royal Infirmary, Manchester University, UK 1997-1998
• PhD, Medical School, National and Kapodistrian University of Athens, Greece
• Fellow of the European Board of Gastroenterology and Hepatology, 2010
• Fellow of the European Society of Gastrointestinal Endoscopy (ESGE), 2025

• 2002, Push enteroscopy in the investigation of small intestinal disease, PhD, Medical School, National and Kapodistrian University of Athens, Greece, http://dx.doi.org/10.12681/eadd/20063

More than 30 years of continuous hospital-based clinical experience in the diagnosis, treatment, and prevention of digestive diseases.

Extensive experience in ERCP across all levels of complexity; diseases of the liver, biliary tract, and pancreas; and advanced gastrointestinal endoscopy. Procedures include endoscopic submucosal dissection (ESD), capsule endoscopy, argon plasma coagulation for radiation-induced colitis, endoscopic treatment of Barrett’s oesophagus, and endoscopic myotomy for Zenker’s diverticulum.

More than 30,000 diagnostic and therapeutic upper gastrointestinal endoscopies and colonoscopies performed, including over 8,000 endoscopic polyp removals. Extensive experience in managing polyps of all types, sizes, and levels of complexity, using techniques including polypectomy, endoscopic mucosal resection (EMR), and ESD.

A particular clinical focus on endoscopic retrograde cholangiopancreatography (ERCP), with advanced training in Greece and the United Kingdom. More than 7,500 ERCP procedures performed, including technically challenging cases and over 370 SpyGlass™ cholangioscopy procedures for the lithotripsy of difficult bile duct stones and the investigation of indeterminate biliary strictures.

Responsibility for the care and treatment of more than 11,000 inpatients during a hospital career. Substantial work in general and specialist outpatient clinics, including clinics dedicated to polyp management and the prevention of digestive diseases. More than 35,000 outpatients assessed across morning and extended-hours hospital services, with a focus on diagnosis, treatment, and long-term follow-up.

• Interventional endoscopy:
  ERCP, lithotripsy, and gastrointestinal stent placement.
  Management of polyps of all types, sizes, and levels of complexity, using endoscopic resection techniques including polypectomy, endoscopic mucosal resection (EMR), and endoscopic submucosal dissection (ESD).
  Endoscopic haemostasis of bleeding gastrointestinal lesions.
• Advanced training in ERCP in the United Kingdom.
• Training in the use of laser therapy for upper and lower gastrointestinal conditions at the National Laser Centre, University College Hospital, London, United Kingdom.

• Endoscopy (ERCP, polypectomy, quality in endoscopy)
• Radiation protection

Authorship activities

67 publications in PubMed

https://pubmed.ncbi.nlm.nih.gov/?term=Paraskeva+Konstantina

• 260 abstracts and 67 original papers in peer-reviewed Journals, Book chapters etc.
• Co-author in three European Society of Gastrointestinal Endoscopy guidelines:
  • Radiation protection in digestive endoscopy, 2012
  • Colorectal polypectomy and endoscopic mucosal resection (EMR), 2017
  • Endoscopic management of common bile duct stones, 2019

1. Τzivras M, Konstantinidis A, Hatzis G, Paraskeva K, Skandalis N, Archimandritis A. Systemic absorption of 5-aminosalicylic acid in patients with inactive ulcerative colitis treated with olsalazine and mesalazine. Eur J Gastroenterol Hepatol 1997 Jul; 9(7): 729-30.
2. Paraskeva Κ, Bury R, Isaacs P. Streptococcus milleri liver abscesses: an unusual complication after colonoscopic removal of an impacted fish bone. Gastrointestinal Endoscopy, 51(3): 357-358, 2000.
3. Paraskeva K. Endoscopic palliation for unresectable pancreatic adenocarcinoma. Annals Gastroenterol 2000; 13(3):217-220.
4. Paraskeva K, Vamvakousis V, Balatsos V, Konstantinidis A, Ntelis V, Manika Z, Skandalis N. Diagnostic yield of push enteroscopy in the investigation of small bowel disease. Annals Gastroenterol 2003; 16(1):60-64.
5. Tslafoutas IA, Paraskeva KD, Yakoumakis E, Vassilaki E, Maniatis P, Karagiannis I, Koulentianos E. Radiation doses to patients from Endoscopic Retrograde Cholangiopancreatography examinations and image quality considerations. Radiation Protection Dosimetry, vol 106 (3), 241-246; 2003.
6. Paraskeva K. Diagnosis of early pancreatic cancer. Ann Gastroenterol 2004; vol 17 (2): 136-137.
7. Paraskeva K, Karagiannis JA. Assessment of severity and prognosis in patients with Acute Pancreatitis- CME Gastroenterology 2005; 7(1):6.
8. G. Paspatis, K. Paraskeva, A. Theodoropoulou, N. Mathou, E Vardas, P Oustamanolakis, G Chlouverakis, and J Karagiannis. A Prospective, Randomized Comparison of Adrenaline Injection in Combination with Detachable Snare Versus Adrenaline Injection Alone in the Prevention of Postpolypectomy Bleeding in Large Colonic Polyps. Am J Gastroenterol, Vol 101, 2006; 101(12): 2805-2809.
9. Paraskeva K, Avgerinos C, Manes C, Dervenis C. Nutrition in severe acute pancreatitis: does the route of administration of the content of feeding matter? Journal of Organ Dysfunction, 2006, vol 2,(3): 1747-1060.
10. Paraskeva KD, Karagiannis JA. Assessment of severity and prognosis in patients with acute pancreatitis. CME Journal Gastroenterology Hepatology and Nutrition; 7:6-14, 2005.
11. Paraskeva K, Dervenis C. Nutritional factors in Acute Pancreatitis. European Gastroenterology Review 2006, Issue II.
12. Triantopoulou C, Filipou D, Maniatis P, Paraskeva K, Avgerinos K, Dervenis C. Virtual colonoscopy in the evaluation of a pararectal cavitary lesion after hysterectomy. Gastrointest Endosc 2006; 63(4): 705-706.
13. Paspatis GA, Paraskeva K, Theodoropoulou A, Mathou N, Vardas E, Oustamanolakis P, Chlouverakis G, Karagiannis I. A prospective, randomized comparison of adrenaline injection in combination with detachable snare versus adrenaline injection alone in the prevention of postpolypectomy bleeding in large colonic polyps. Am J Gastroenterol. 2006 Dec;101(12):2805; quiz 2913.
14. Litras D, Paraskeva K, Avgerinos C, Manes C, Touloumis Z, Paraskeva K, Dervenis C. Therapeutic strategies for the management of delayed gastric emptying after pancreatic resection. Langenbecks Arch Surg. 2007 Jan; 392(1):1-12. Review.
15. Anagnostopoulos G, Stefanou D, Arkoumani E, Chalkey C, Karagiannis I, Paraskeva K, Mathou N, Dellaporta E, Tsianos E, Agnantis E. Expression of Bax protein in gastric carcinomas. A clinicopathological and immunohistochemical study. Acta Gastroenterol Belg 2007 Jule-Sep; 70(3): 285-9.
16. Anagnostopoulos, G.K., Stefanou, D., Arkoumani, E., Karagiannis, J., Paraskeva, K., Chalkley, L., Habilomati, E., Tsianos, E. and Agnantis, N.J. (2008), Immunohistochemical expression of cell-cycle proteins in gastric precancerous lesions. Journal of Gastroenterology and Hepatology, 23: 626-631.
17. Delis S, Bakoyannis A, Triantopoulou C, Paraskeva K, Athanasiou K, Dervenis C. Obstructive jaundice in polycystic liver disease related to coexisting cholangiocarcinoma. Case Rep Gastroenterol 2008, Vol 2,N 2, 061 Pancreas 2008 36(3):249-254.
18. Delis SG, Touloumis Z, Bakoyiannis A, Tassopoulos N, Paraskeva K, Athanassiou K, Safioleas M, Dervenis C. Intrahepatic biliary cystadenoma: a need for radical resection. Eur J Gastroenterol Hepatol. 2008 Jan; 20(1):10-4. Review.
19. Bakoyiannis A, Triantopoulou C, Paraskeva K, Athanassiou K, Dervenis C. Obstructive jaundice in polycystic liver disease related to coexisting cholangiocarcinoma. Delis SG, Case Rep Gastroenterol. 2008 May 24; 2(2):162-9. doi: 10.1159/000129600.
20. Delis S, Karakaxas D, Bakoyannis A, Paraskeva K, Dervenis C. Pleurobiliary fistula, a rare complication of hepatocellular carcinoma after locolegional chemotherapy: a case report. Cases Journal 2009; 2: 7992.
21. Paspatis G, Tribonias G, Paraskeva K. Level of intended sedation. Digestion 2010; 82:84-86.
22. Cohen LB, Ladas SD, Vargo JJ, Paspatis GA, Bjorkman DJ, Van der Linden P, Axon AT, Axon AE, Bamias G, Despott E, Dinis-Ribeiro M, Fassoulaki A, Hofmann N, Karagiannis JA, Karamanolis D, Maurer W, O'Connor A, Paraskeva K, Schreiber F, Triantafyllou K, Viazis N, Vlachogiannakos J. Sedation in digestive endoscopy: Athens international position statements. Aliment Pharmacol Ther 2010; 32: 425-442.
23. Tsapaki V, Paraskeva KD, Mathou N, Andrikopoulos E, Tentas P, Triantopoulou C, Karagiannis JA. Patient and endoscopist radiation doses during ERCP procedures. Radiat Prot Dosimetry. 2011 Sep; 147(1-2):111-3. doi: 10.1093/rpd/ncr285. Epub 2011 Jul 9.
24. Voudoukis E, Vardas E, Paraskeva K, Paspatis G. Conservative treatment of perforation following balloon dilatation of the papilla after Sphincterotomy. Endoscopy 2012; 44: E 292-293.
25. Dumonceau JM, Garcia-Fernandez FJ, Verdun FR, Carinou E, Donadille L, Damilakis J, Mouzas I, Paraskeva K, Ruiz-Lopez N, Struelens L, Tsapaki V, Vanhavere F, Valatas V, Sans-Merce M. Radiation protection in digestive endoscopy: European Society of Digestive Endoscopy (ESGE) guideline. European Society of Digestive Endoscopy. Endoscopy 2012 Apr; 44(4):408-21. doi: 10.1055/s-0031-1291791.
26. Voudoukis E, Vardas E, Theodoropoulou A, Tavernaraki A, Kokkinaki M, Psillakis K, Paraskeva K, Paspatis GA. Conservative treatment of perforation following balloon dilation of the papilla after sphincterotomy. Endoscopy. 2012;44 Suppl 2 UCTN:E292-3. doi: 10.1055/s-0032-1310027. No abstract available.
27. Paspatis GA, Konstantinidis K, Tribonias G, Voudoukis E, Tavernaraki A, Theodoropoulou A, Chainaki I, Manolaraki M, Chlouverakis G, Vardas E, Paraskeva K. Sixty- versus thirty-seconds papillary balloon dilation after sphincterotomy for the treatment of large bile duct stones: a randomized controlled trial. Dig Liver Dis. 2013 Apr; 45(4):301-4.
28. Paspatis GA, Paraskeva K. Author reply: Comment to "Sixty versus thirty seconds papillary balloon dilation after sphincterotomy for the treatment of large bile duct stones: a randomized controlled trial". Dig Liver Dis. 2013 Aug;45(8):700-1.
29. Paraskeva KD, Paspatis GA. Management of bleeding and perforation after colonoscopy. Expert Rev Gastroenterol Hepatol 2014 Nov; 8(8): 963-72.
30. Tribonias G, Komeda Y, Voudoukis E, Bassioukas S, Viazis N, Manola ME, Giannikaki E, Papalois A, Paraskeva K, Karamanolis D, Paspatis GA. Cold snare polypectomy with pull technique of flat colonic polyps up to 12 mm: a porcine model. Ann Gastroenterol. 2015 Jan-Mar; 28(1):141-143.
31. Voudoukis E, Tribonias G, Tavernaraki A, Theodoropoulou A, Vardas E, Paraskeva K, Chlouverakis G, Paspatis GA. Use of a double-channel gastroscope reduces procedural time in large left-sided colonic endoscopic mucosal resections. Clin Endosc. 2015 Mar;48(2):136-41.
32. Agalianos C, Paraskeva K, Gouvas N, Davides D, Dervenis C. Impact of biliary stenting on surgical outcome in patients undergoing pancreatectomy. A retrospective study in a single institution. Langenbecks Arch Surg. 2016 Feb; 401(1):55-61.
33. Tsapaki V, Paraskeva KD, Tsalafoutas IA, Paspatis G, Scotiniotis H, Georgopoulos P, Finou P, Karagianis JA. The impact of x-ray unit type used for endoscopic retrograde cholangiopancreatography procedures on patient doses. Radiat Prot Dosimetry 2016 Dec;171(4):503-508.
34. Paraskeva KD, Tribonias G, Papastergiou V, Paspatis GA. In search of the optimal technique to overcome cold polypectomy cutting failure: pulling up may be better than resnaring (with video). Gastrointest Endosc 2016 Apr; 83(4):854-5.
35. Tsapaki V, Delinikolas P, Paraskeva KD, Paspatis IA, Scotiniotis H, Georgopoulos P, Voudoukis E, Finou P, Athanasopoulos N, Lydakis I, Giannakopoulos A, Mathou N, Angelogiannakopoulou N, Triantopoulou C, Karagiannis JA. Preliminary diagnostic reference levels for endoscopic retrograde cholangio-pancreatography in Greece. Phys Med 2016 Apr; 32(4):607-11.
36. Papastergiou V, Papasavvas S, Mathou N, Giannakopoulos A, Evgenidi A, Karagiannis JA, Paraskeva KD. A delayed onset of bowel activity after the start of conventional polyethylene glycol predicts inadequate colon cleansing before colonoscopy: A prospective observational study. United European Gastroenterol J. 2016 Apr; 4(2):199-206.
37. Paspatis GA, Paraskeva K, Vardas E, Papastergiou V, Tavernaraki A, Fragaki M, Theodoropoulou A, Chlouverakis G. Long-term recurrence of bile duct stones after endoscopic papillary large balloon dilation with sphincterotomy: 4-year extended follow-up of a randomized trial. Surg Endosc 2016 Jun 17.
38. Augoustou C, Paraskeva K. Early Endoscopic Closure of colocutaneous fistula adjacent to unmatured low colorectal anastomosis with the Over-the-Scope Clip (OTSC). Hellenic Journal of Surgery (2016); 88(3):193-196.
39. Ferlitsch M, Moss A, Hassan C, Bhandari P, Dumonceau JM, Paspatis G, Jover R, Langner C, Bronzwaer M, Nalankilli K, Fockens P, Hazzan R, Gralnek I, Gschwantler M, Waldmann E, Jeschek P,Penz D, Heresbach D, Moons L, Lemmers A, Paraskeva K, Pohl J, Ponchon T, Regula J, Repici A, Rutter M, Burgess N, Bourke M Colorectal polypectomy and endoscopic mucosal resection (EMR): European Society of Gastrointestinal Endoscopy (ESGE) Clinical Guideline. Endoscopy 2017; 49: 270-297.
40. Papastergiou V, Mathou N, Lycousi S, Paraskeva K, Giannakopoulos, Evgenidi E, Platsouka E, Karagiannis J A 7-day genotypic resistance-guided triple therapy based on a simple molecular assay is highly successful for Helicobacter pylori eradication: a pilot study. Ann Gastroenterol. 2017 Jan-Mar; 31(1):1-7.
41. Kasapidis P,Bassioukas S, Mavrogenis G,Tribonias G, Delis K, Georgopoulos S, Christodoulou D, Emmanouil T, Paraskeva K, Panteris V, Papalois A,Triantafillidis J, Tsiamoulos Z, Fukuhara T, Komeda Y, Kashida H. Experimental gastric endoscopic submucosal dissection: training in a porcine model. Ann Gastroenterol 2000; (2017) 30, 1-4.
42. Papastergiou V, Paraskeva KD, Fragaki M, Dimas I, Vardas E,Theodoropoulou A, Mathou N, Giannakopoulos A, Karmiris K, Mpitouli A, Apessou D, Paspatis G. Cold versus hot endoscopic mucosal resection for nonpedunculated colorectal polyps sized 6-10 mm: a randomized trial. Endoscopy. Endoscopy 2018;50:403-411.
43. Fagkrezos D, Manes K, Paraskeva K, Lenos M, Triantopoulou C, Apessou D, Maniatis P. Secondary extramedullary plasmacytoma of sigmoid colon in a patient with multiple myeloma: a case report. J Med Case Rep. 2018 Dec 25;12(1):379
44. Papastergiou V, Mathou N, Lycousi S, Evgenidi E, Paraskeva K, Giannakopoulos, Evgenidi E, Stavrou Pinelopi-Zoi, Platsouka E, Karagiannis J. Seven-day genotypic resistance-guided triple Helicobacter pylori eradication therapy can be highly effective. Ann Gastroenterol. 2018 Mar-Apr;31(2):198-204.
45. V. Papastergiou V, Mathou N, Manes K, Maniatis P, Paraskeva K, Evgenidi A, Giannakopoulos A, Karagiannis JÁ. When perforation is not the culprit: case report and systematic review of mechanical small-bowel obstruction complicating colonoscopy. Acta Gastro-Enterologica Belgica, Vol. LXXXI, January-March 2018.
46. Papastergiou V, Paraskeva K, Paspatis G. Should we use EMR to resect small colorectal polyps? The jury is still out. Letter to Editor. Gastrointest Endosc 2018:7( 3) 902.
47. Apostolopoulos P, Ekmektzoglou KA, Paraskeva K, Dimopoulos K, Paparaskeva K, Alexandrakis G. Intraductal papillary neoplasm of the bile duct : case report and review of the literature. Acta Gastroenterol Belg. 2018 Jan-Mar;81(1):97-99. Review.
48. Manes G, Paspatis G, Aabakken L, Anderloni A, Arvanitakis M, Ah-Soune P, Barthet M, Domagk D, Dumonceau JM, Gigot JF, Hritz I, Karamanolis G, Laghi A, Mariani A, Paraskeva K, Pohl J, Ponchon T, Swahn F, Ter Steege RWF, Tringali A, Vezakis A, Williams EJ, van Hooft JE. Endoscopic management of common bile duct stones: European Society of Gastrointestinal Endoscopy (ESGE) guideline. Endoscopy. 2019 May;51(5):472-491.
49. Elmaliklis, A. Liveri, Ntelis B, Paraskeva K, Goulis I, Koutelidakis AE. Increased Functional Foods’ Consumption and Mediterranean Diet Adherence May Have a Protective Effect in the Appearance of Gastrointestinal Diseases: A Case-Control Study. IN. Medicines 2019, 6, 50.
50. Papastergiou V, Paspatis G, Paraskeva K. Immediate intraprocedural bleeding: true ‘complication’ of cold snare polypectomy? Endoscopy International Open 2019; 07: 1-2.
51. Tsapaki V, Papastergiou V, Giannakopoulos A., Angelogiannakopoulou P, Delatolas V, Triantopoulou C, Theocharis S, Paraskeva K. Management of difficult bile duct stones and indeterminate bile duct strictures: Reduced ERCP radiation exposure with adjunct use of digital single -operator cholangioscopy. Phys Med 2019 Aug: 64;69-73.
52. V.Papastergiou, N. Mathou, A. Giannakopoulosa, A. Evgenidi, E. Schoretsanitis, K. Papaparaskeva, D. Apessou, K. D. Paraskeva. Simulated performance of flexible sigmoidoscopy-based screening for advanced neoplasia detection in a Greek population. Ann Gastroenterol 2000; (2020) 33, 1-8.
53. Paspatis GA, Papastergiou V, Mpitouli A, Velegraki M, Nikolaou P, Fragkaki M, Voudoukis E, Theodoropoulou A, Chlouverakis G, Vardas E, Paraskeva KD. Distal Biliary Stent Migration in Patients with Irretrievable Bile Duct Stones: Long-Term Comparison Between Straight and Double-Pigtail Stents. Dig Dis Sci. 2022 Sep;67(9):4557-4564.
54. Tziatzios G, Papaefthymiou A, Facciorusso A, Papanikolaou IS, Antonelli G, Marco S, Frazzoni L, Fuccio L, Paraskeva KD, Hassan C, Repici A, Sharma P, Rex DK, Triantafyllou K, Messmann H, Gkolfakis P. Comparative efficacy and safety of resection techniques for treating 6 to 20mm, nonpedunculated colorectal polyps: A systematic review and network meta-analysis. Dig Liver Dis. 2023 Jul;55(7):856-864.
55. Papaefthymiou A, Ramai D, Maida M, Tziatzios G, Viesca MFY, Papanikolaou I, Paraskeva K, Triantafyllou K, Repici A, Hassan C, Binda C, Beyna T, Facciorusso A, Arvanitakis M, Gkolfakis P. Performance and safety of motorized spiral enteroscopy: a systematic review and meta-analysis. Gastrointest Endosc. 2023 May;97(5):849-858.e5.
56. Katsoula A, Axiaris G, Mpitouli A, Palatianou M, Christidou A, Dimitriadis N, Nakos A, Pastras P, Kourkoulis P, Karatzas P, Moutzoukis M, Zlatinoudis C, Philippidis A, Kourikou A, Kokkotis G, Gklavas A, Machaira A, Mantaka A, Talimtzi P, Anagnostopoulou E, Koutroubakis IE, Papaconstantinou I, Bamias G, Manolakopoulos S, Mathou N, Paraskeva K, Protopappas A, Tsironi E, Katsanos KH, Christodoulou DK, Papatheodoridis G, Michalopoulos G, Theocharis G, Triantos C, Pachiadakis I, Soufleris K, Viazis N, Mantzaris GJ, Tribonias G, Tzouvala M, Theodoropoulou A, Karmiris K, Zampeli E, Michopoulos S, Haidich AB, Giouleme O. The Inflammatory Bowel Disease-Disk Tool for Assessing Disability in Inflammatory Bowel Disease Patients: Validation of the Greek Version. J Clin Med. 2023 Apr 21;12(8):3023.
57. Manti M, Tziatzios G, Facciorusso A, Papaefthymiou A, Ramai D, Papanikolaou I, Hassan C, Triantafyllou K, Paraskeva K, Gkolfakis P. Effect of add-on devices with projections on screening colonoscopy: a systematic review and meta-analysis. Ann Gastroenterol. 2023 Sep-Oct;36(5):533-540.
58. Viazis N, Vlachogiannakos J, Apostolopoulos P, Mimidis K, Tzouvala M, Tsionis T, Goulas S, Thomopoulos K, Paraskeva K, Paspatis G, Kofokotsios A, Liatsos C, Manolakis A, Christodoulou D, Rokkas T, Michopoulos S, Papatheodoridis G, Tassios P, Mantzaris G. Sedation during endoscopic procedures: a Hellenic Society of Gastroenterology Position Statement. Ann Gastroenterol. 2023 May-Jun;36(3):231-243.
59. Tziatzios G, Ziogas D, Gkolfakis P, Papadopoulos V, Papaefthymiou A, Mathou N, Giannakopoulos A, Gerasimatos,G Paraskeva K, Triantafyllou K. Endoscopic Grading and Sampling of Gastric Precancerous Lesions: A Comprehensive Literature Review. Curr. Oncol. 2024, 31, 3923–3938.
60. Spinou Μ, Kyvelou Ε, Aggelopoulos G, Ziogas D, Panagaki A, Manti M, Papaefthymiou A, Gkolfakis P, Facciorusso A, Mathou N, Giannakopoulos A, Triantafyllou K, Paraskeva K, Vezakis A, Vlachogiannakos J, Karamanolis G, Tziatzios, "Safe outpatient discharge after gastrointestinal endoscopy with sedation/analgesia: A systematic literature review" Annals of Gastroenterology 2024; 37 (5): 499-508
61. Manti M, Shah J, Papaefthymiou A, Facciorusso A, Ramai D, Tziatzios G, Papadopoulos V, Paraskeva K, Papanikolaou IS, Triantafyllou K, Arvanitakis M, Archibugi L, Vanella G, Hollenbach M, Gkolfakis P. Endoscopic Management of Difficult Biliary Stones: An Evergreen Issue. Medicina (Kaunas). 2024 Feb 19;60(2):340.
62. Ioannou A, Dimopoulou K, Rizos E, Manthopoulou E, Sidiropoulos O, Papathanasiou E, Tziatzios G, Paraskeva K, Papanikolaou IS. Evaluation of gastroenterology training curriculum in Greece. United European Gastroenterol J. 2024 Oct;12(8):1139-1142.
63. Manti M, Papaefthymiou A, Dritsas S, Kamperidis N, Papanikolaou IS, Paraskeva K, Facciorusso A, Triantafyllou K, Papadopoulos V, Tziatzios G, Gkolfakis P. Endoscopic Full Thickness Resection Device (FTRD®) for the Management of Gastrointestinal Lesions: Current Evidence and Future Perspectives. Diagnostics (Basel). 2025 Apr 4;15(7):932.
64. Soulaidopoulos S, Leontsinis I, Kyriazis I, Skopelitis E, Sevastianos V, Koromboki E, Touliatou A, Paraskeva K, Vallianou N, Tsiodras S, Psiri A, Manolakopoulos S, Papatheodoridis G, Tsioufis K. “Real-World Burden of Major Bleeding in Patients on Antithrombotic Therapy: The Attica Bleeding Snapshot”.
65. Seretis F, Panagaki A, Gkolfakis P, Tziatzios G, Paraskeva K. Endoscopic assessment of rectal cancer response after neoadjuvant chemoradiotherapy: A narrative literature review. World J Clin Oncol. 2025 Nov 24;16(11):106498
66. Seretis, F., Panagaki, A., Tziatzios, G., Gkolfakis, P., Romanou, E., Papastergiou, V., Theodorou, A., Kapiris, A., Theodorou, D., Triantafyllou, T., Kapiris, S., & Paraskeva, K. (2026). Endoscopic Tattooing Using Indocyanine Green (ICG) Fluorescence for Intraoperative Guidance in Colorectal Surgery: Review of the Literature. Cancers, 18(1), 22.
67. Viazis N, Toruner M, Papastergiou V, Mousourakis K, Christidou A, Tzouvala M, Zacharopoulou E, Palatianou M, Theocharis G, Geramoutsos G, Theodoropoulou A, Karmiris K, Velegraki M, Ferhat Çelik A, Akpinar A, Zampeli E, Papathanasiou E, Unal NG, Kapsoritakis A, Argyriou K, Christodoulou D, Katsanos K, Fousekis F, Karakan T, Koutroubakis IE, Drygiannakis I, Giouleme O, Kalogirou M, Vlachou E, Liatsos C, Kyriakos N, Tsironi E, Markopoulos P, Bamias G, Chalakatevaki K, Tsiolakidou G, Lamouri C, Tribonias G, Dimopoulou K, Kasapidis P, Paraskeva K, Telli P, Akyuz F. Rate and predictors of successful antitumor necrosis factor deescalation after dose intensification in inflammatory bowel disease patients: a real-world Greek-Turkish collaborative study. Eur J Gastroenterol Hepatol. 2026 Jan 1;38(1):36-41.

Hellenic Society of Gastroenterology

• President of Hellenic Society of Gastroenterology Governing Board, 2024-2025
• President, Endoscopy Section of Hellenic Society of Gastroenterology, 2020-2022
• Vice President, Hellenic Society of Gastroenterology Governing Board, 2014-2015
• Special Secretary, Hellenic Society of Gastroenterology Governing Board, 2016

European Society of Gastrointestinal Endoscopy (ESGE)

• Guidelines Group participant
• ESGE Quality Improvement Committee working groups, Member

United European Gastroenterology (UEG)

• National Societies Representative to the Meeting of Members, 2019-2022

Organizing activities

• Member of the Organizing Committee in numerous Hellenic Congresses and Meetings, educational activities in the field of Endoscopy
• Member of Organizing Committee of Endoscopy School, Hellenic Society of Gastroenterology
• President of PanHellenic Gastroenterology Congress, Athens 2025