S. Kykalos

Most-cited papers

1. Global variation in postoperative mortality and complications after cancer surgery: a multicentre, prospective cohort study in 82 countries

   Stephen R Catherine A Riinu Thomas M Lisa Adesoji O Adewal Knight Shaw Pius Drake Norman Ademuyiwa Adisa Agui, Stephen R. Knight, C. Shaw, R. Pius +496 more

   2021The Lancet265 citations Open access

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2. Immunotherapy for Hepatocellular Carcinoma: A 2021 Update

   Christo Kole, N. Charalampakis, Sergios Tsakatikas, M. Vailas +5 more

   2020Cancers114 citations Open access

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3. Elective surgery system strengthening: development, measurement, and validation of the surgical preparedness index across 1632 hospitals in 119 countries

   James C Tom EF Adesoji Adewale Ehab Sattar Alexis P Brit Glasbey Abbott Ademuyiwa Adisa AlAmeer Alshryda Ar, J. Glasbey, T. Abbott, A. Ademuyiwa +496 more

   2022The Lancet67 citations Open access

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4. Transarterial Chemoembolization for Hepatocellular Carcinoma: Why, When, How?

   E. Kotsifa, C. Vergadis, M. Vailas, N. Machairas +5 more

   2022Journal of Personalized Medicine67 citations Open access

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5. Pancreatic surgery outcomes: multicentre prospective snapshot study in 67 countries

   Giuseppe Kito Dimitri Aristotle Mohamed Abu Claudio Marc Ke Fusai Raptis Hilal Bassi Besselink Conlon Davidson, G. Fusai, D. Raptis, M. A. Hilal +496 more

   2023British Journal of Surgery65 citations Open access

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6. Reducing the environmental impact of surgery on a global scale: systematic review and co-prioritization with healthcare workers in 132 countries

   Adewale Michael Aneel Christina Dhruv James Parvez J C All Adisa Bahrami-Hessari Bhangu George Ghosh Glasbey, A. Adisa, M. Bahrami-Hessari, A. Bhangu +496 more

   2023British Journal of Surgery62 citations Open access

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7. Meta-analysis of laparoscopic versus open liver resection for intrahepatic cholangiocarcinoma

   N. Machairas, I. Kostakis, D. Schizas, S. Kykalos +2 more

   2020Updates in Surgery37 citations

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8. Management of Morgagni’s Hernia in the Adult Population: A Systematic Review of the Literature

   I. Katsaros, Stamatia Katelani, Spyridon Giannopoulos, N. Machairas +5 more

   2021World Journal of Surgery34 citations

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9. Implications of the presence of the vermiform appendix inside an inguinal hernia (Amyand’s hernia): a systematic review of the literature

   Dimitri Papaconstantinou, Zoe Garoufalia, S. Kykalos, C. Nastos +5 more

   2020Hernia33 citations

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10. Small bowel obstruction outcomes according to compliance with the World Society of Emergency Surgery Bologna guidelines

    L. J. Kaplan, Isidro Martinez-Casas, S. Mohseni, M. Cimino +306 more

    2025British Journal of Surgery31 citations Open access

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11. Laparoscopic parastomal hernia repair: keyhole, Sugarbaker, sandwich, or hybrid technique with 3D mesh? An updated systematic review and meta-analysis

    Nicos Kritharides, Dimitri Papaconstantinou, S. Kykalos, N. Machairas +3 more

    2023Langenbeck's archives of surgery (Print)29 citations Open access

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12. Artificial intelligence in hepatocellular carcinoma diagnosis: a comprehensive review of current literature

    O. Chatzipanagiotou, C. Loukas, M. Vailas, Nikolaos Machairas +5 more

    2024Journal of Gastroenterology and Hepatology28 citations

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13. The Emerging Role of Metformin in the Treatment of Hepatocellular Carcinoma: Is There Any Value in Repurposing Metformin for HCC Immunotherapy?

    Stavros P. Papadakos, D. Ferraro, G. Carbone, A. Frampton +5 more

    2023Cancers28 citations Open access

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14. Global 30-day morbidity and mortality of surgery for perforated peptic ulcer: GRACE study

    M. Abouelazayem, R. Jain, Michael Wilson, A. Martinino +486 more

    2024Surgical Endoscopy26 citations

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15. Changing biological behaviour of NETs during the evolution of the disease: progress on progression.

    K. Alexandraki, A. Spyroglou, S. Kykalos, K. Daskalakis +4 more

    2021Endocrine-Related Cancer26 citations Open access

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16. Simultaneous robotic-assisted resection of colorectal cancer and synchronous liver metastases: a systematic review

    N. Machairas, P. Dorovinis, S. Kykalos, P. Stamopoulos +4 more

    2021Journal of Robotic Surgery26 citations

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17. Multicentre prospective study on the diagnostic and prognostic validity of malnutrition assessment tools in surgery

    Georgia Petra, E. Kritsotakis, N. Gouvas, D. Schizas +45 more

    2025British Journal of Surgery24 citations Open access

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18. A prognostic model for use before elective surgery to estimate the risk of postoperative pulmonary complications (GSU-Pulmonary Score): a development and validation study in three international cohorts

    L. Bravo, J. Simoes, V. Cardoso, A. Adisa +496 more

    2024The Lancet Digital Health24 citations Open access

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19. Safety and Efficacy of Laparoscopic Caudate Lobectomy: A Systematic Review

    P. Dorovinis, N. Machairas, S. Kykalos, P. Stamopoulos +2 more

    2021Journal of Clinical Medicine22 citations Open access

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20. Risk Factors for Surgical Site Infections in Patients Undergoing Emergency Surgery: A Single-centre Experience

    A. Papadopoulos, N. Machairas, G. Tsourouflis, C. Chouliaras +6 more

    2021In Vivo21 citations Open access

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21. Epidemiology, diagnostic approach and therapeutic management of tailgut cysts: A systematic review

    Aikaterini Mastoraki, I. Giannakodimos, Karmia Panagiotou, M. Frountzas +4 more

    2021International journal of clinical practice21 citations Open access

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22. Global Variation in Living Donor Liver Transplantation Practices Impacts Donor and Recipient Short-Term Outcomes: Initial Insights from the International LDLT Registry.

    M. Rela, Elizabeth A. Pomfret, Hiroto Egawa, Prashant Bhangui +362 more

    2025American Journal of Transplantation18 citations Open access

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23. Immunotherapy for cholangiocarcinoma: a 2021 update.

    N. Charalampakis, G. Papageorgiou, Sergios Tsakatikas, R. Fioretzaki +4 more

    2021Immunotherapy18 citations

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24. Short-Term Outcomes After Robotic Versus Open Liver Resection: A Systematic Review and Meta-analysis

    Κωνσταντίνα Β. Παπαδοπούλου, P. Dorovinis, S. Kykalos, Dimitrios Schizas +4 more

    2022Journal of Gastrointestinal Cancer17 citations

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25. The Role of PROX1 in Neoplasia: A Key Player Often Overlooked

    E. Ntikoudi, Alexandros Pergaris, S. Kykalos, E. Politi +1 more

    2022Diagnostics15 citations Open access

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26. Impact of opioid-free analgesia on pain severity and patient satisfaction after discharge from surgery: multispecialty, prospective cohort study in 25 countries

    William Gordon Chris Cameron Nicolas John Lorane Sarah Aya Xu Liu Varghese Wells Smith Windsor Gaborit Goh Ba, William Xu, Gordon Liu, C. Varghese +496 more

    2024British Journal of Surgery13 citations Open access

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27. Meta-Analysis of Repeat Hepatectomy versus Radiofrequency Ablation for Recurrence of Hepatocellular Carcinoma

    N. Machairas, Dimitri Papaconstantinou, P. Dorovinis, D. Tsilimigras +4 more

    2022Cancers11 citations Open access

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28. Spigelian hernias in the adult population: a systematic review of the literature

    I. Katsaros, Michail Papapanou, E. Kontogeorgi, Georgios Tsakotos +6 more

    2024Langenbeck's archives of surgery (Print)10 citations

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29. Concomitant Laparoscopic Splenectomy and Cholecystectomy: A Systematic Review of the Literature

    D. Schizas, I. Katsaros, E. Karatza, S. Kykalos +4 more

    2020Journal of laparoendoscopic & advanced surgical techniques. Part A10 citations

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30. Peripheral Neuropathy in Patients with Hepatitis C Infection—Reversibility after HCV Eradication: A Single Center Study

    T. Androutsakos, I. Tsantzali, Dimitrios S. Karagiannakis, P. Flevari +5 more

    2024Viruses9 citations Open access

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31. Trimodality treatment in gastric and gastroesophageal junction cancers: Current approach and future perspectives

    N. Charalampakis, Sergios Tsakatikas, D. Schizas, S. Kykalos +8 more

    2022World Journal of Gastrointestinal Oncology9 citations Open access

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32. Pericardial hernias in adults: a systematic review of the literature.

    D. Schizas, I. Katsaros, E. Karatza, Nikoletta A. Theochari +6 more

    2019Interactive Cardiovascular and Thoracic Surgery9 citations Open access

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33. Is Single-Incision Laparoscopic Liver Surgery Safe and Efficient for the Treatment of Malignant Hepatic Tumors? A Systematic Review

    N. Machairas, D. Papaconstantinou, A. Gaitanidis, N. Hasemaki +4 more

    2019Journal of Gastrointestinal Cancer9 citations

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34. Vaginal Natural Orifice Transluminal Endoscopic Surgery (vNOTES) for Gynecological Procedures in Obese Patients: A Systematic Review

    A. Koulakmanidis, Christos Vrysis, D. Zacharakis, E. Kontogeorgi +10 more

    2025Journal of Clinical Medicine7 citations Open access

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35. Immune checkpoint inhibitors and combinations with other agents in cholangiocarcinoma.

    Nikolaos Skouteris, G. Papageorgiou, R. Fioretzaki, N. Charalampakis +3 more

    2023Immunotherapy7 citations

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36. Management of portal vein thrombosis in cirrhotic patients enlisted for liver transplantation: From diagnosis to treatment (Review).

    E. Kotsifa, S. Kykalos, N. Machairas, N. Nikiteas +1 more

    2021Biomedical Reports7 citations Open access

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37. Minimally Invasive Surgery for Perihilar Cholangiocarcinoma—A Review of the Current Literature

    P. Dorovinis, Nikolaos Machairas, A. Terra, I. Palios +2 more

    2025Journal of Clinical Medicine6 citations Open access

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38. Robotic Single Anastomosis Duodenal-ileal Bypass With Sleeve Gastrectomy (SADI-S) for Morbid Obesity: A Systematic Review

    Theodoros Kozonis, Kyriacos Evangelou, C. Damaskos, N. Garmpis +6 more

    2024In Vivo6 citations Open access

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39. Oncologic outcomes of patients with resectable primary gastric squamous cell carcinoma: a systematic review

    Dimitrios Schizas, Dimitri Papaconstantinou, A. Syllaios, Vasileia Ntomi +5 more

    2022Annals of gastroenterology : quarterly publication of the Hellenic Society of Gastroenterology6 citations Open access

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40. The role of miR-101 in esophageal and gastric cancer.

    A. Syllaios, S. Sakellariou, N. Garmpis, E. Sarlani +6 more

    2021Personalized Medicine6 citations

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41. Safety and equity in scaling minimally invasive surgery worldwide in 109 countries using cholecystectomy as a tracer procedure: a prospective cohort study.

    S. Kamarajah, Omar Kouli, W. Ng, R. Pius +496 more

    2026Lancet Global Health5 citations Open access

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42. Education and training of surgical residents in upper gastrointestinal surgery: a European survey

    C. Popa, D. Schlanger, A. Aiolfi, Moustafa Elshafei +103 more

    2025Updates in Surgery5 citations Open access

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43. Primary Omental Torsion in Children in the Laparoscopy Era: What Have we Learned so far?

    V. Alexopoulos, X. Sinopidis, Aspasia Louta, C. Damaskos +8 more

    2024In Vivo5 citations Open access

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44. Isolated ZIC4 Antibodies and Autoimmune Encephalitis in a Microsatellite-Instability-High Metastatic Uterine Carcinosarcoma during Immune Checkpoint Inhibitor Treatment

    N. Charalampakis, N. Tsoukalas, S. Kykalos, M. Tolia

    2019Archives of Clinical and Medical Case Reports5 citations Open access

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45. The Potential Use of Fibrin Sealants in Burn Wound Management: A Comprehensive Review of Experimental and Clinical Studies

    Christina Nikolaou, M. Frountzas, E. Kapetanakis, D. Stefanoudakis +4 more

    2025European burn journal4 citations Open access

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46. Could Fibrin Sealants (TISSEELTM) Be Effective in the Management of Burn Injuries? A Histopathological Study in Rats

    Christina Nikolaou, M. Frountzas, D. Schizas, V. Pergialiotis +6 more

    2024Medical Science4 citations Open access

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47. Primary Hydatid Cysts in the Extremities: A Systematic Review of the Literature

    A. Paspala, E. Mela, M. Vailas, K. Nastos +4 more

    2024Cureus4 citations Open access

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48. "Oligometastatic pancreatic cancer" definition: The first step.

    M. Frountzas, D. Schizas, S. Kykalos, K. Toutouzas

    2022Hepatobiliary & Pancreatic Diseases International4 citations

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49. The Effect of Fibrin Sealants on Tubal Reanastomosis: A Comprehensive Review of the Literature

    D. Papageorgiou, V. Pergialiotis, I. Sapantzoglou, Eleni-Sivylla Bikouvaraki +3 more

    2025Journal of Personalized Medicine3 citations

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50. A rare case of extrahepatic biliary mucinous cystic neoplasm in a middle-aged woman: A case report.

    A. Paspala, N. Machairas, V. Damaskou, V. Ntomi +3 more

    2021Molecular and clinical oncology3 citations Open access

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