Bio

Bio

I began my training in General Surgery at the Naval Hospital of Athens and completed it at the Konstantopouleio General Hospital of Nea Ionia “Agia Olga”. At the time, this clinic —under the direction of Dervenis— was considered a national referral center in Greece for liver and pancreatic diseases.

After obtaining my specialty title, I further specialized in hepatobiliary and pancreatic surgery, initially at the Surgical Clinic of Agia Olga, where I participated in a large number of procedures within this field. I was subsequently accepted to the University Surgical Clinic in Verona, under Professor Claudio Bassi, one of the leading pancreatic surgery centers in Europe.
Alongside my subspecialty training in Italy, I completed a postgraduate degree at the University of Verona, titled Master Universitario in Chirurgia Epato-Pancreatico-Biliare, Livello II. During this two-year period, I gained substantial experience in the perioperative management of this complex group of surgical conditions.

Following my return from abroad, and while serving as a surgical registrar at the Naval Hospital of Athens, I completed my doctoral thesis at the National and Kapodistrian University of Athens, titled: Short-term and long-term outcomes after colorectal surgery: comparison between complete mesocolic excision (CME) and conventional resection.

Since 2019, I have served initially as a consultant and subsequently as Director of the Surgical Clinic at the Naval Hospital of Crete, while also maintaining a private practice in Chania. In addition to performing a broad range of general surgical procedures, I continue to focus on hepatobiliary and pancreatic surgery, treating patients from across the island of Crete and collaborating with private clinics in both Chania and Heraklion.

I have participated in numerous national and international conferences as an invited speaker, presenting studies, outcomes, and clinical experience from the institutions where I trained and served, both as a resident and as a consultant. I maintain strong clinical, research, and educational engagement, currently contributing as an instructor in training programs for surgical residents and specialists, while also publishing a significant number of scientific papers and studies.

  • 1996: Admission to the Medical Department of Aristotle University of Thessaloniki and to the Military Medical School (Military Academy of Combat Support Officers, SSAS) – National entrance examinations.
  • 2002: Medical Degree, Aristotle University of Thessaloniki, grade Very Good – duration 6 years.
  • 2002: Graduation from the Military Academy of Combat Support Officers (SSAS) with the rank of Medical Ensign (ΥΙ).
  • 2002-2003: Intern in the 2nd Surgical Clinic and 2nd Internal Medicine Clinic of the Naval Hospital of Athens.
  • 2003-2005: Head of Medical Supervision, Frigate Limnos.
  • 2005: General Surgery Resident at the Naval Hospital of Crete.
  • 2005-2007: General Surgery Resident, 1st Surgical Clinic, Naval Hospital of Athens.
  • 2008-2011: General Surgery Resident, 1st Surgical Clinic of "Konstantopouleio General Hospital" of Nea Ionia "Agia Olga".
  • Δεκέμβριος 2011: Awarded Specialty Title in General Surgery after examinations.
  • 2011-2012: Head of Surgical Department, Naval Hospital of Salamina.
  • 2012-2014: Consultant, 1st Surgical Clinic, Naval Hospital of Athens.
  • 2014-2015: Subspecialty training in hepatobiliary and pancreatic surgery at the Surgical Clinic of Konstantopouleio General Hospital of Nea Ionia "Agia Olga".
  • 2015-2016: Subspecialty training in hepatobiliary and pancreatic surgery at the University Surgical Clinic in Verona, Italy, under Professor Claudio Bassi.
  • 2016-2019: Resumed duties as Consultant, Surgical Clinic, Naval Hospital of Athens.
  • 2019-2023: Consultant, Surgical Clinic, Naval Hospital of Crete.
  • 2023-Today: Director, Surgical Clinic, Naval Hospital of Crete.
  1. Com Kyriazanos I.D. MD, Lt Agalianos C. MD, Lt .Com Ivros N. MD, Cpt Neonakis E. MD ,Comd. Noussis G MD
    Civilian vs Battlefield Advanced Trauma Life Support (BATLS): Same Song, Different Tune
    Poiana Brasov, Romania
  2. I.D.Kyriazanos, C.Agalianos, N.Ivros, K.Nastos, A.Kordelas, D.Davides
    Laparoscopic splenectomy for a true splenic cyst producing carcinoembryonic antigen (CEA) and cancer antigen 15-3 but not carbohydrate antigen 19-9. Case report and review of the literature
    Athens,Greece
  3. D.Davides, C.Agalianos, V.Kontostolis, N.Ivros, G.Stefanidis, G.Papageorgiou, I.D.Kyriazanos
    Unusual localization of biloma at the abdominal wall after laparoscopic cholecystectomy
    Athens,Greece
  4. C.Triantopoulou, C.Avgerinos, C.Agalianos, D.Kelgiorgi, J.Papailiou, C.Dervenis
    Autoimmune and Groove Pancreatitis: A Diagnostic Dilemma
    Athens,Greece
  5. C.Agalianos, A.Sofianidis, D.Karakaxas, E.Zouros, C.Triantopoulou, C.Avgerinos, C.Dervenis
    Laparoscopic lavage in patients with complicated diverticulitis(Hinchey II-III)
    Athens,Greece
  6. C.Agalianos, P.Pikoulas, G.Mpoutsikos, M.Giaourakis, G.Thomaidis, D.Davides
    Reducing cost-improving health provision. Our experience from the implemention of ambulatory surgery in general surgery
    Athens, Greece
  7. C.Agalianos, P.Pikoulas, G.Mpoutsikos, M.Giaourakis, G.Thomaidis, D.Davides
    The use of drains in elective Laparoscopic cholecystectomy.Overcoming the prejudices
    Athens, Greece
  8. E.Fradellos, C.Agalianos, G.Boutsikos, D.Kotsiris, N.Stamos, D.Manatakis, D.Davides
    The Use Of Drainage In Laparoscopic Cholecystectomy Necessity Or Prejudice?
    Istanbul,Turkey
  9. E.Zouros, C.Agalianos , N.Gouvas, C.Dervenis
    Fast – track recovery program after pancreaticoduodenectomy for pancreatic and periampullary lesions
    Belgrade, Serbia
  10. C.Agalianos,C.Triantopoulou, N.Gouvas,D.Davides , C.Dervenis
    Preoperative imaging assessment of cystic pancreatic lesions: do we know what we resect?
    Belgrade, Serbia
  11. D.Fagrezos,C.Triantopoulou,C.Agalianos,N.Gouvas,D.Davides,D.Papailiou,C.Dervenis
    Specificity of Preoperative imaging assessment of cystic pancreatic lesions
    Athens, Greece
  12. N.Dragolas, C.Papaparaskeya, C.Triantopoulou, C.Agalianos, X.Gramatoglou, D.Apessou, C.Dervenis, I.Gigonti
    Axial dissection of panreatoduodenectomy specimen. Advantages in margin evaluation. Presentation of a case of distal bile duct adenocarcinoma.
    Athens, Greece
  13. C.Agalianos, I.Sideris, C.Chatzimargaritis, E.Nika, N.Gouvas, K.Paraskeva, C.Dervenis
    Morbidity following pancreatectomy after preoperative biliary drainage
    Athens, Greece
  14. D.Manatakis, A.Vitalis, N.Stamos, C.Agalianos, I.Terzis,I.Kyriazanos, D.Davides
    Critical view of safety reduces bile duct injuries during laparoscopic cholecystectomy
    Athens, Greece
  15. D.Manatakis,G.Sotiropoulos C.Agalianos, I.Terzis, I.Kyriazanos, D.Davides
    Safe alternatives to “critical view of safety” technique in laparoscopic cholecystectomy
    Singapore
  16. D.Manatakis,N.Moustakis, C.Agalianos, I.Terzis, I.Kyriazanos, D.Davides
    Implementation of an enhanced recovery protocol in pancreatic surgery – preliminary results
    Singapore
  17. D.Manatakis, N.Stamos,C.Agalianos,I.Terzis, I.Kyriazanos, D.Davides
    Safe dissection of Calot’s triangle during laparoscopic cholecystectomy: alternative options when the critical view of safety is not feasible
    Manchester, UK
  18. D.Manatakis, E.Zouros, C.Agalianos, S.Delis, C.Triantopoulou, C.Dervenis
    Adult pancreatoblastoma : a case report
    Thessaloniki,Greece
  19. Gouvas N, Agalianos C, Kanavidis G, Balogiannis I, Tzovaras G, Dervenis C, Xynos E.
    Defunctioning Ileostomy after Low Anterior Resection of Rectum: Morbidity related to Fashioning and Closure.
    Dublin, Ireland
  20. Gouvas N, Agalianos C, Georgiou P, Tzovaras G, Xynos E.
    Surgery along the Embryological Planes for Colon Cancer: A Systematic Review of Complete Mesocolic Excision
    Dublin, Ireland
  21. Agalianos C, Gouvas N .Sideris I. Triantopoulou , C.Dervenis C.
    The role of inflammatory markers on predicting resectability in patients with pancreatic adenocarcinoma
    Thessaloniki, Greece
  22. Agalianos C, Gouvas N .Papaparaskeva K, C.Dervenis C
    Positive para-aortic lymph nodes following pancreatectomy for pancreatic cancer. Systematic review and meta-analysis of impact on short term survival and association with clinicopathologic features.
    Thessaloniki, Greece
  23. Agalianos C, Gouvas N . Stamos N, Sideris I. Davides D, C.Dervenis C.
    Pancreatic adenocarcinoma as second primary. Review of the literature aiming in genetic and environmental corelations
    Thessaloniki, Greece
  24. Agalianos C, Sideris I, Apessou D, Papaparaskeva K , Gouvas N .,Triantopoulou C, C.Dervenis C
    Solid pseudopapillary tumor: a rare pancreatic neoplasia. Case series and review of the literature focusing on radiologic and pathologic characteristics
    Thessaloniki, Greece
  25. Manatakis D, Kountouris N, Antonopoulou M, Achimastos V, Barkolias C, Papadoudis A, Agalianos C, Xanthopoulou G, Georgopoulos N
    Day surgery laparoscopic cholecystectomy-is it cost-effective?
    Thessaloniki, Greece
  1. Basic preoperative elements in fast track colorectal surgery
    4th panhellenic congress of the Hellenic society for Digestive surgery
    Athens, Greece
  2. "IPMN" Indications for surgical resection
    2nd annual meeting of the Greek Gastroenterologic Comitee
    Athens, Greece
  3. Acute appendicitis. Is there evidence for non-surgical treatment?
    6th Postgraduate course of European Digestive Surgery
    Thessaloniki, Greece
  4. Laparoscopy for diverticular disease (indications,technique,video clip)
    Colorectal Diseases.Minimal invasive Surgery Course
    Larissa Greece
  5. Benign liver lesions.Treatment algorithm
    “5th Postgraduate Course on HPB Diseases”
    Kammena Vourla
  6. Complications of acute pancreatitis
    “5th Postgraduate Course on HPB Diseases”
    Volos,Greece
  7. Resection margins in pancreatic cancer. Oncologic outcomes
    1st Postgraduate seminar Gastrointestinal cancer study group
    Thessaloniki, Greece
  8. Borderline Resectable Pancreatic Cancer
    “7th Congress on Metastatic Liver Disease”
    Nafplio, Greece
  9. Management of synchronous liver colorectal metastases
    6th International Meeting, Colorectal Games
    Athens, Greece
  10. EAHPBA Free papers 18: pancreas
    ‘11th Congress of the European-African Hepato-Pancreato-Biliary Association
    Manchester, UK
  11. Neoadjuvant treatment in pancreatic cancer. The way to a new guideline
    “10th Congress on Metastatic Liver Disease”
    Kalamata, Greece
  12. Differentiation in pancreatic cancer management. Oligometastatic cancer, The role of inflammation.
    “2nd Masterclass on Gastrointestinal Cancers”
    Volos, Greece
  13. Cystic liver diseases. CHAIRMAN
    “12th Biennial E-AHPBA Congress”
    Mainz, Germany
  14. Poster session: cholecystectomy. CHAIRMAN
    “12th Biennial E-AHPBA Congress”
    Mainz, Germany
  15. Surgical steps to prevent bile duct injury
    “12th Biennial E-AHPBA Congress”
    Mainz, Germany
  16. The role of inflammation in pancreatic cancer patients
    Masterclass on pancreatic cancer,E-AHPBA Postgraduate course
    Athens, Greece
  17. Surgical management of non-colorectal liver metastasis
    “8th Postgraduate Course on HPB Diseases”, liver section
    Kalamata, Greece
  18. Etiology and onset of acute pancreatitis
    8th Postgraduate Course on HPB Diseases”, pancreas section
    Volos, Greece
  19. Management of periampullary adenomas and tumors
    8th Postgraduate Course on HPB Diseases”, pancreas section
    Volos, Greece
  20. Current definitions of borderline rentable pancreatic neoplasms
    E-AHPBA Postgraduate course-Pancreatic cancer
    Athens, Greece
  21. Epidemiology, symptoms and classification of pancreatic cystic tumors
    “12th Congress on Metastatic Liver Disease”
    Volos, Greece
  22. Management algorithms for colorectal liver metastasis
    “12th Congress on Metastatic Liver Disease”
    Volos, Greece
  23. Management of chyle leak following pancreatic resection
    “12th Biennial E-AHPBA Congress
    Amsterdam, Netherlands
  24. Oncologic adequacy of pancreatic head resection
    Postgraduate Course on HPB Diseases”, pancreas section
    Athens, Greece
  25. Pancreatic trauma
    5th Panhellenic congress of the Greek Hepato-Biliary-Pancreatic association
    Ioannina, Greece
  1. Gouvas N, Manatakis D, Agalianos C, Dimitriou N, Baloyiannis I, Tzovaras G, Xynos E.
    Defunctioning Ileostomy After Low Anterior Resection of Rectum: Morbidity Related to Fashioning and Closure.
    Medicina (Kaunas). 2024 Nov 14;60(11):1864.
  2. Manatakis DK, Antonopoulou MI, Tasis N, Agalianos C, Tsouknidas I, Korkolis DP, Dervenis C.
    Critical View of Safety in Laparoscopic Cholecystectomy: A Systematic Review of Current Evidence and Future Perspectives.
    World J Surg. 2023 Mar;47(3):640-648.
  3. Gouvas N, Agalianos C, Manatakis DK, Pechlivanides G, Xynos E.
    Elective surgery for conservatively treated acute uncomplicated diverticulitis: a
    systematic review of postoperative outcomes.
    Minerva Surg. 2022 Dec;77(6):591-601.
  4. Agalianos C, Gouvas N, Manatakis DK, Sideris I, Passas I, Dervenis C.
    The Role of Inflammatory Markers in Predicting Resectability of Pancreatic Ductal
    Adenocarcinoma.
    Chirurgia (Bucur). 2022 Jun;117(4):431-436.
  5. Manatakis DK, Tasis N, Antonopoulou MI, Agalianos C, Piagkou M, Tsiaoussis J, Natsis K, Korkolis DP.
    Morphology of the sulcus of the caudate process (Rouviere's sulcus) in a Greek population and a systematic review with meta-analysis.
    Anat Sci Int. 2022 Jan;97(1):90-99.
  6. Douridas GN, Fountoulakis A, Souglakos J, Gourtsoyianni S, Vini L, Levidou G, Liakakos T, Agalianos C, Dervenis C, Kalogeridi MA, Karavokyros I,
    Koumarianou A, Kountourakis P, Oikonomopoulos G, Economopoulou P, Sgouros J,
    Sgouros SN, Stamou K, Triantopoulou C, Zacharoulis D, Gouvas N, Xynos E.
    Consensus statement of the Hellenic and Cypriot Gastric Cancer Study Group on
    the diagnosis, staging and management of gastric cancer.
    Updates Surg. 2020 Mar;72(1):1-19.
  7. Fountoulakis A, Souglakos J, Vini L, Douridas GN, Koumarianou A, Kountourakis P, Agalianos C, Alexandrou A, Dervenis C, Gourtsoyianni S, Gouvas
    N, Kalogeridi MA, Levidou G, Liakakos T, Sgouros J, Sgouros SN, Triantopoulou C,
    Xynos E.
    Consensus statement of the Hellenic and Cypriot Oesophageal Cancer
    Study Group on the diagnosis, staging and management of oesophageal cancer.
    Updates Surg. 2019 Dec;71(4):599-624.
  8. Manatakis DK, Aheimastos V, Antonopoulou MI, Agalianos C, Tsiaoussis J, Xynos E.
    Unfinished Business: A Systematic Review of Stump Appendicitis.
    World J Surg. 2019 Nov;43(11):2756-2761.
  9. Manatakis DK, Papageorgiou D, Antonopoulou MI, Stamos N, Agalianos C, Ivros N, Davides D, Pechlivanides G, Kyriazanos I.
    Ten-year Audit of Safe Bail-Out Alternatives to the Critical View of Safety in Laparoscopic Cholecystectomy.
    World J Surg. 2019 Nov;43(11):2728-2733.
  10. Agalianos C, Passas I, Sideris I, Davides D, Dervenis C.
    Review of management options for pancreatic pseudocysts.
    Transl Gastroenterol Hepatol. 2018 Mar 21;3:18.
  11. Gouvas N, Georgiou PA, Agalianos C, Tzovaras G, Tekkis P, Xynos E.
    Does Conversion to Open of Laparoscopically Attempted Rectal Cancer Cases Affect
    Short- and Long-Term Outcomes? A Systematic Review and Meta-Analysis.
    J Laparoendosc Adv Surg Tech A. 2018 Feb;28(2):117-126.
  12. Agalianos C, Gouvas N, Dervenis C, Tsiaoussis J, Theodoropoulos G, Theodorou D, Zografos G, Xynos E.
    Is complete mesocolic excision oncologically superior to conventional surgery for colon cancer? A retrospective comparative study.
    Ann Gastroenterol. 2017;30(6):688-696.
  13. Pectasides D, Kotoula V, Papaxoinis G, Alexopoulou Z, Dervenis C, Samantas E, Papaparaskeva K, Charalambous E, Gkakou C, Agalianos C, Kalogeras KT, Pentheroudakis G, Fountzilas G.
    Expression Patterns of Growth and Survival Genes with Prognostic Implications in Advanced Pancreatic Cancer.
    Anticancer Res. 2016 Dec;36(12):6347-6356.
  14. Dervenis C, Xynos E, Sotiropoulos G, Gouvas N, Boukovinas I, Agalianos C,
    Androulakis N, Athanasiadis A, Christodoulou C, Chrysou E, Emmanouilidis C,
    Georgiou P, Karachaliou N, Katopodi O, Kountourakis P, Kyriazanos I, Makatsoris
    T, Papakostas P, Papamichael D, Pechlivanides G, Pentheroudakis G, Pilpilidis I,
    Sgouros J, Tekkis P, Triantopoulou C, Tzardi M, Vassiliou V, Vini L, Xynogalos S, Ziras N, Souglakos J.
    Clinical practice guidelines for the management of metastatic colorectal cancer: a consensus statement of the Hellenic Society of Medical Oncologists (HeSMO).
    Ann Gastroenterol. 2016 Oct-Dec;29(4):390-416.
  15. Gouvas N, Agalianos C, Papaparaskeva K, Perrakis A, Hohenberger W, Xynos E.
    Surgery along the embryological planes for colon cancer: a systematic review of
    complete mesocolic excision.
    Int J Colorectal Dis. 2016 Sep;31(9):1577-94.
  16. Agalianos C, Gouvas N, Papaparaskeva K, Dervenis C.
    Positive para-aortic lymph nodes following pancreatectomy for pancreatic cancer. Systematic review and meta-analysis of impact on short term survival and association with clinicopathologic features.
    HPB (Oxford). 2016 Aug;18(8):633-41.
  17. Tachezy M, Gebauer F, Janot M, Uhl W, Zerbi A, Montorsi M, Perinel J, Adham
    M, Dervenis C, Agalianos C, Malleo G, Maggino L, Stein A, Izbicki JR, Bockhorn M.
    Synchronous resections of hepatic oligometastatic pancreatic cancer: Disputing a principle in a time of safe pancreatic operations in a retrospective multicenter analysis.
    Surgery. 2016 Jul;160(1):136-144.
  18. Agalianos C, Dervenis C.
    Pancreatic surgery in the elderly: overcoming the prejudices.
    Ann Gastroenterol. 2016 Apr-Jun;29(2):101-2.
  19. Xynos E, Tekkis P, Gouvas N, Vini L, Chrysou E, Tzardi M, Vassiliou V,
    Boukovinas I, Agalianos C, Androulakis N, Athanasiadis A, Christodoulou C,
    Dervenis C, Emmanouilidis C, Georgiou P, Katopodi O, Kountourakis P, Makatsoris
    T, Papakostas P, Papamichael D, Pechlivanides G, Pentheroudakis G, Pilpilidis I,
    Sgouros J, Triantopoulou C, Xynogalos S, Karachaliou N, Ziras N, Zoras O,
    Souglakos J; [the Executive Team on behalf of the Hellenic Society of Medical
    Oncologists (HeSMO)].
    Clinical practice guidelines for the surgical treatment of rectal cancer: a consensus statement of the Hellenic Society of Medical Oncologists (HeSMO).
    Ann Gastroenterol. 2016 Apr-Jun;29(2):103-26.
  20. Zouros E, Liakakos T, Machairas A, Patapis P, Agalianos C, Dervenis C.
    Improvement of gastric emptying by enhanced recovery after pancreaticoduodenectomy.
    Hepatobiliary Pancreat Dis Int. 2016 Apr;15(2):198-208.
  21. Triantopoulou C, Papaparaskeva K, Agalianos C, Dervenis C.
    Innovations in macroscopic evaluation of pancreatic specimens and radiologic correlation.
    Eur J Radiol Open. 2016 Mar 11;3:49-59.
  22. 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
  23. Xynos E, Gouvas N, Triantopoulou C, Tekkis P, Vini L, Tzardi M, Boukovinas
    I, Androulakis N, Athanasiadis A, Christodoulou C, Chrysou E, Dervenis C,
    Emmanouilidis C, Georgiou P, Katopodi O, Kountourakis P, Makatsoris T,
    Papakostas P, Papamichael D, Pentheroudakis G, Pilpilidis I, Sgouros J,
    Vassiliou V, Xynogalos S, Ziras N, Karachaliou N, Zoras O, Agalianos C,
    Souglakos J; [the Executive Team on behalf of the Hellenic Society of Medical
    Oncology (HeSMO)].
    Clinical practice guidelines for the surgical management of colon cancer: a consensus statement of the Hellenic and Cypriot Colorectal Cancer Study Group by the HeSMO.
    Ann Gastroenterol. 2016 Jan-Mar;29(1):3-17.
  24. Zouros E, Manatakis DK, Delis SG, Agalianos C, Triantopoulou C, Dervenis C.
    Adult pancreatoblastoma: A case report and review of the literature.
    Oncol Lett. 2015 May;9(5):2293-2298.
  25. Gouvas N, Georgiou PA, Agalianos C, Tan E, Tekkis P, Dervenis C, Xynos E.
    Ventral colporectopexy for overt rectal prolapse and obstructed defaecation
    syndrome: a systematic review.
    Colorectal Dis. 2015 Feb;17(2):O34-46.
  26. Karakaxas D, Gazouli M, Coker A, Agalianos C, Papanikolaou IS, Patapis P,
    Liakakos T, Dervenis C.
    Genetic polymorphisms of inflammatory response gene TNF-α and its influence on sporadic pancreatic neuroendocrine tumors predisposition risk.
    Med Oncol. 2014 Oct;31(10):241.