Πολλές από τις ιδέες του Dr. Κεχαγιά έχουν μετουσιωθεί σε δημοσιευμένο υλικό σε ευγνωσμένα διεθνή επιστημονικά περιοδικά και χαίρουν ιδιαίτερης εκτίμησης από τη διεθνή επιστημονική κοινότητα ως “opinion making”. Πλέον, μελέτες με την προσωπική σφραγίδα του Dr. Κεχαγιά αποτελούν κομμάτι των διεθνών κατευθυντήριων οδηγιών σε διάφορους τομείς όπως για παράδειγμα η οξεία εκκολπωματίτιδα ή η αποφυγή μετεγχειρητικής διαφυγής της αναστόμωσης σε επεμβάσεις του πεπτικού σωλήνα.
Το ερευνητικό έργο συνεχίζεται μέσω της ιδιωτικής δραστηριότητας του Dr. Κεχαγιά καθώς και μέσω των συνεργασιών με νοσοκομεία των προαναφερθείσων χωρών οι οποίες πλαισιώνονται από την προσωπική φιλία και αναγνώριση από κορυφαίους καθηγητές χειρουργικής διεθνώς.
Τέλος, είναι άξιο αναφοράς ότι δυστυχώς ο ιδιωτικός τομέας στην χώρα μας έχει σχεδόν μηδενική ερευνητική δραστηριότητα γιατί ως γνωστόν η ανεξάρτητη έρευνα απαιτεί αφιέρωση πολύ προσωπικού χρόνου χωρίς όμως να αποφέρει το παραμικρό οικονομικό όφελος στον ιατρό-ερευνητή ο οποίος επιπλέον πρέπει να διαθέτει υψηλού επιπέδου ιατρική και επιστημονική κατάρτιση. Αντίθετα, το πιστεύω μας έιναι ότι η ερευνητική συνεισφορά είναι διαρκής υποχρέωση για την βελτίωση της υγείας του συνόλου και ως μέσο προόδου, ανεξάρτητα προσωπικού όφελους.
Ο Dr. Κεχαγιάς έχει ενεργή διεθνή επιστημονική συνεργασία με τα εξής νοσοκομεία και φίλους/συνεργάτες:
Φινλανδία: Κεντρικό Νοσοκομείο Kanta-Häme, Πανεπιστημιακό Νοσοκομείο Τάμπερε, Πανεπιστημιακό Νοσοκομείο Κουόπιο, Πανεπιστημιακό Νοσοκομείο Ελσίνκι – Ari Palomäki (Καθηγητής Επείγουσας Ιατρικής), Arto Turunen (Λέκτορας Χειρουργικής), Pasi Pengermä, Jevgeni Katunin, Jaana Vironen (Καθηγήτρια Χειρουργικής)
Ολλανδία: Πανεπιστημιακό Νοσοκομείο Ουτρέχτης – με τους Καθηγητές Χειρουργικής Inne Borel Rinkes, Menno Vriens, Richard van Hillegersberg
Σουηδία: Πανεπιστημιακό Νοσοκομείο Στοκχόλμης (Καρολίνσκα) – Biying Huang, Ioannis Rouvelas (Καθηγητής Χειρουργικής)
Ιταλία: Πανεπιστημιακό Νοσοκομείο Ρώμης Tor Vergata, Πανεπιστημιακό Νοσοκομείο San Raffaele Μιλάνο – Gabriella Giarratano, Pierpaolo Sileri (Καθηγητής Χειρουργικής, Γερουσιαστής, Υφυπουργός Υγείας)
Ο Dr.Κεχαγιάς είναι νύν Διευθύνων των κλινικών ερευνητικών προγραμμάτων του χειρουργικού τομέα του Νοσοκομείου Kanta-Häme Central Hospital της Φινλανδίας. Είναι Επιβλέπων (Scientific Supervisor) τριών υποψηφίων Διδακτόρων Χειρουργικής στις Σκανδιναβικές χώρες (2 Φινλανδία, 1 Σουηδία).
Επιπλέον, ο Dr. Κεχαγιάς είναι επιστημονικός συνεργάτης των διεθνών ερευνητικών ομάδων:
- WSES Trauma Quality Indicators Expert Panel (World Society of Emergency Surgery – WSES)
- WSES COVID-19 emergency surgery survey collaboration group
- WSES Team Dynamics survey collaboration group
- S-COVID Collaborative Group
- COVIDSurg Collaborative Group
- GlobalSurg Collaborative Group
- EuroSurg Collaborative Group
- Perforated Peptic Ulcer – Core Descriptor Set Collaborator (PPU-CDS)
- Oesophago-Gastric Anastomosis Study Group (OGAA)
- Minimally Invasive Right Colectomy Study Group (MIRCAST)
65 ΔΗΜΟΣΙΕΥΣΕΙΣ ΣΕ ΔΙΕΘΝΗ ΕΠΙΣΤΗΜΟΝΙΚΑ ΠΕΡΙΟΔΙΚΑ:
- Keyhole versus Sugarbaker techniques in parastomal hernia repair following ileal conduit urinary diversion: a retrospective nationwide cohort study. Mäkäräinen-Uhlbäck E, Vironen J, Vaarala M, Nordström P, Välikoski A, Kössi J, Falenius V, Kechagias A, Mattila A, Ohtonen P, Scheinin T, Rautio T. BMC Surg. 2021 May 3;21(1):231.
- Parastomal Hernia: A Retrospective Nationwide Cohort Study Comparing Different Techniques with Long-Term Follow-Up. Mäkäräinen-Uhlbäck E, Vironen J, Falenius V, Nordström P, Välikoski A, Kössi J, Kechagias A, Kalliala M, Mattila A, Rantanen T, Scheinin T, Ohtonen P, Rautio T. World J Surg. 2021 Feb 9.
- Is surgical exploration mandatory in pneumatosis intestinalis with portomesenteric gas? Lesson learned in a neutropenic patient under chemotherapy. Pengermä P, Katunin J, Turunen A, Rouvelas I, Palomäki A, Kechagias A. ANZ J Surg. 2021 Jun 25. doi: 10.1111/ans.17043.
- Team dynamics in emergency surgery teams: results from a first international survey. Cobianchi L, Dal Mas F, Massaro M, Fugazzola P, Coccolini F, Kluger Y, Leppäniemi A, Moore E, Sartelli M, Angelos P, Ansaloni L, – Kechagias A. in Team Dynamics Study Group. World J Emerg Surg. 2021 Sep 16;16(1):47.
- Presentation of gastroesophageal junction adenocarcinoma with synchronous metastases at the small intestine. Could treatment with curative intent be considered? A case report. Huang Β, Kechagias Α,Tsekrekos A, Lovece Α, Hayami Μ, Rouvelas Ι. International Journal of Surgery Case Reports Volume 84, July 2021.
- Venous thromboembolism after esophagectomy for cancer: a systematic review of the literature to evaluate incidence, risk factors, and prophylaxis. Theochari NA, Theochari CA, Kokkinidis DG, Kechagias A, Lyros O, Giannopoulos S, Mantziari S, Schizas D. Surg Today. 2021 Mar 13.
- Effects of pre-operative isolation on postoperative pulmonary complications after elective surgery: an international prospective cohort study. COVIDSurg Collaborative; GlobalSurg Collaborative – Kechagias A.. Anaesthesia. 2021 Aug 9. doi: 10.1111/anae.15560.
- Timing of surgery following SARS-CoV-2 infection: an international prospective cohort study. COVIDSurg Collaborative; GlobalSurg Collaborative – Kechagias A.. Anaesthesia. 2021 Mar 9.
- SARS-CoV-2 vaccination modelling for safe surgery to save lives: data from an international prospective cohort study. COVIDSurg Collaborative, GlobalSurg Collaborative – Kechagias A.. Br J Surg. 2021 Mar 24.
- Timing of nasogastric tube insertion and the risk of postoperative pneumonia: an international, prospective cohort study. EuroSurg Collaborative – Kechagias A.. Colorectal Dis. 2020 Dec;22(12):2288-2297.
- Trauma quality indicators: internationally approved core factors for trauma management quality evaluation. Coccolini F, Kluger Y, Moore EE, Maier RV, Coimbra R, Ordoñez C, Ivatury R, Kirkpatrick AW, Biffl W, Sartelli M, Hecker A, Ansaloni L, Leppaniemi A, Reva V, Civil I, Vega F, Chiarugi M, Chichom-Mefire A, Sakakushev B, Peitzman A, Chiara O, Abu-Zidan F, Maegele M, Miccoli M, Chirica M, Khokha V, Sugrue M, Fraga GP, Otomo Y, Baiocchi GL, Catena F; and the WSES Trauma Quality Indicators Expert Panel – Kechagias A.. World J Emerg Surg. 2021 Feb 23;16(1):6.
- Appendiceal perforation due to biliary stent migration in a neutropenic patient with lung cancer under chemotherapy. Pengermä P, Katunin J, Turunen A, Sileri P, Giarratano G, Palomäki A, Kechagias A. Molecular and Clinical Oncology 2021 (accepted for publication).
- Papillary thyroid carcinoma micro-deposits in cervical lymph nodes without intra-thyroid malignancy: a comment in consideration of the latest American Thyroid Association guidelines. Karvounis E, Kechagias A, Kappas I, Ioakimidou C, Fillipidis T. Molecular and Clinical Oncology 2021 Aug;15(2):164.
- Groin abscess due to rupture of colonic diverticulum. Pengermä P, Kechagias A. Duodecim. 2021 Jan;137:322.
- Global variation in postoperative mortality and complications after cancer surgery: a multicentre, prospective cohort study in 82 countries. GlobalSurg Collaborative – Kechagias A. and National Institute for Health Research Global Health Research Unit on Global Surgery. Lancet. 2021 Jan 30;397(10272):387-397.
- Mortality from esophagectomy for esophageal cancer across low, middle, and high-income countries: An international cohort study. Oesophago-Gastric Anastomotic Audit (OGAA) Collaborative – Kechagias A.. Eur J Surg Oncol. 2021 Jan 1:S0748-7983(20)31225-7.
- Impact of the SARS-CoV-2 pandemic on emergency surgery services-a multi-national survey among WSES members. Reichert M, Sartelli M, Weigand MA, Doppstadt C, Hecker M, Reinisch-Liese A, Bender F, Askevold I, Padberg W, Coccolini F, Catena F, Hecker A; WSES COVID-19 emergency surgery survey collaboration group – Kechagias A.. World J Emerg Surg. 2020 Dec 9;15(1):64.
- Screening policies, preventive measures and in-hospital infection of COVID-19 in global surgical practices. Bellato V, Konishi T, Pellino G, An Y, Piciocchi A, Sensi B, Siragusa L, Khanna K, Pirozzi BM, Franceschilli M, Campanelli M, Efetov S, Sica GS; S-COVID Collaborative Group – Kechagias A.. J Glob Health. 2020 Dec;10(2):020507.
- Surgeons’ fear of getting infected by COVID19: A global survey. An Y, Bellato V, Konishi T, Pellino G, Sensi B, Siragusa L, Franceschilli M, Sica GS; S-COVID Collaborative Group – Kechagias A.. Br J Surg. 2020 Oct;107(11):e543-e544.
- Impact of asymptomatic COVID-19 patients in global surgical practice during the COVID-19 pandemic. Bellato V, Konishi T, Pellino G, An Y, Piciocchi A, Sensi B, Siragusa L, Khanna K, Pirozzi BM, Franceschilli M, Campanelli M, Efetov S, Sica GS; S-COVID Collaborative Group – Kechagias A.. Br J Surg. 2020 Sep;107(10):e364-e365.
- The influence of the SARS-CoV-2 pandemic on esophagogastric cancer services: an international survey of esophagogastric surgeons. Kamarajah S, Markar S, Singh P, Griffiths E, and the Oesophagogastric Anastomosis Audit Group – Kechagias A.. Dis Esophagus. 2020 Jun 5 doi: 10.1093/dote/doaa054.
- Splenohepatic sarcoidosis 12 years after breast cancer curative surgery: a diagnostic dilemma in imaging. Pengermä P, Katunin J, Turunen A, Palomäki A, Kechagias A. ANZ J Surg. 2020 Dec;90(12):E221-E222.
- Immediate effects of urgent reorganisation of emergency department-based treatment pathway in nonperforated appendicitis: a retrospective study. Ojakäär A, Purdy M, Kechagias A, Järvelin U, Palomäki A. BMC Emerg Med. 2020 May 29;20(1):45.
- Safety of hospital discharge before return of bowel function after elective colorectal surgery. EuroSurg Collaborative – Kechagias A. Br J Surg. 2020 Apr;107(5):552-559.
- Safety and efficacy of non-steroidal anti-inflammatory drugs to reduce ileus after colorectal surgery. EuroSurg Collaborative – Kechagias A. Br J Surg. 2020 Jan;107(2):e161-e169.
- International Variation in Surgical Practices in Units Performing Oesophagectomy for Oesophageal Cancer: A Unit Survey from the Oesophago-Gastric Anastomosis Audit (OGAA). Oesophago-Gastric Anastomosis Study Group – Kechagias A, on behalf of the West Midlands Research Collaborative. World J Surg. 2019 Nov;43(11):2874-2884.
- Pericolic or paracolic? The right word in the right place for acute diverticulitis. Kechagias A, Palomäki A, Dervenis C, Triantopoulou C. Eur Radiol. 2019 Aug;29(8):4377-4378.
- Index C-reactive protein predicts increased severity in acute sigmoid diverticulitis. Kechagias A, Sofianidis A, Zografos G, Leandros E, Alexakis N, Dervenis C. Ther Clin Risk Manag. 2018 Oct 2;14:1847-1853.
- C-reactive protein as a predictor of acute diverticulitis’ severity. Kechagias A, Ukkonen M. Best Practice Gastroenterology, 2017 Oct; 22-24.
- Letter to the Editor on the article “The role of low CRP values in the prediction of the development of acute diverticulitis”. Kechagias A, van Rossum PSN. Int J Colorectal Dis. 2016 Sep;31(9):1667-8.
- The Early C-reactive Protein Trend Does Not Have a Role in Monitoring Acute Diverticulitis Progression. Kechagias A, Rautio T, Mäkelä J. Chirurgia (Bucur). 2016 Jan-Feb;111(1):43-7.
- Letter to the Editor on the article “Predictors of acute diverticulitis severity: A systematic review”. Kechagias A. Int J Surg. 2016 Apr;28:69-70.
- Ischemic Conditioning of the Stomach in the Prevention of Esophagogastric Anastomotic Leakage After Esophagectomy. Kechagias A, van Rossum PSN, Ruurda JP, van Hillegersberg R. Ann Thorac Surg. 2016 Apr;101(4):1614-23.
- Definition and risk-factors of acute diverticulitis severity. Kechagias A, Kotaluoto S. Best Practice Gastroenterology, 2016 May; 14-15.
- The role of C-reactive protein in the prediction of the clinical severity of acute diverticulitis. Kechagias A, Rautio T, Mäkelä J. Am Surg. 2014 Apr;80(4):391-5.
- Computed tomography-guided radiofrequency ablation for palliation of a painful supraclavicular soft-tissue metastasis invading the brachial plexus. Kechagias A, Delis S, Dervenis C, Maniatis P, Papailiou J. Oncol Lett. 2013 Nov;6(5):1521-1523.
- Limits of infrainguinal bypass surgery for critical leg ischemia in high-risk patients (Finnvasc score 3-4). Kechagias A, Ylönen K, Kechagias G, Juvonen T, Biancari F. Ann Vasc Surg. 2012 Feb;26(2):213-8.
- Institutional results and meta-analysis of outcome after infrainguinal surgical revascularization in patients greater than 80 years old. Kechagias A, Romsi P, Ylönen K, Kechagias G, Juvonen T, Biancari F. Am Surg. 2011 Sep;77(9):1222-9.
- Hepatic resection for large hepatocellular carcinoma in the era of UCSF criteria. Delis SG, Bakoyiannis A, Tassopoulos N, Athanassiou K, Kechagias A, Kelekis D, Madariaga J, Dervenis C. HPB (Oxford). 2009 Nov;11(7):551-8.
- Validation of the Finnvasc score in infrainguinal percutaneous transluminal angioplasty for critical lower limb ischemia. Kechagias A, Perälä J, Ylönen K, Mahar MA, Biancari F. Ann Vasc Surg. 2008 Jul-Aug;22(4):547-51.
- Long-term outcome after isolated endarterectomy of the femoral bifurcation. Kechagias A, Ylönen K, Biancari F. World J Surg. 2008 Jan;32(1):51-4.
- Glasgow aneurysm score predicts the outcome after emergency open repair of symptomatic, unruptured abdominal aortic aneurysms. Antonello M, Lepidi S, Kechagias A, Frigatti P, Tripepi A, Biancari F, Deriu GP, Grego F. Eur J Vasc Endovasc Surg. 2007 Mar;33(3):272-6.
- Outcome after emergency repair of symptomatic, unruptured abdominal aortic aneurysm: results in 42 patients and review of the literature. Leo E, Biancari F, Kechagias A, Ylönen K, Rainio P, Romsi P, Juvonen T. Scand Cardiovasc J. 2005 Apr;39(1-2):91-5.
ΕΠΙΛΟΓΗ ΠΙΟ ΠΡΟΣΦΑΤΩΝ ΔΗΜΟΣΙΕΥΣΕΩΝ ΣΕ ΔΙΕΘΝΗ ΕΠΙΣΤΗΜΟΝΙΚΑ ΣΥΝΕΔΡΙΑ:
- Repair techniques and treatment results for parastomal hernia – a retrospective multi-center study. Vironen J, Scheinin T, Rautio T, Välikoski A, Falenius V, Mattila A, Kössi J, Kechagias A. 42nd Annual Congress of the European Hernia Society, Barcelona, Spain, 2020.
- Calcification in the descending thoracic aorta predicts postoperative leakage of intra-thoracic anastomosis after open esophagectomy for cancer. Kechagias A, Ukkonen M, Wirta EV, Tyrväinen T. European Society for Diseases of the Esophagus Meeting (ESDE 2019), Athens, Greece, November 2019.
- Supervised Training in Open Biliary-Enteric Anastomosis is Safe. Kechagias A, Pengermä P, Katunin J, Turunen A, Kelgiorgi D, Sofianidis A, Dervenis C. 13th Congress of the European – African Hepato-Pancreato-Biliary Association (E-AHPBA), Amsterdam, the Netherlands, June 2019.
- Preoperative use of antiplatelet agents and high fibrinogen level predict anastomotic leakage after elective colorectal surgery. Kechagias A, Pengermä P, Katunin J, Sofianidis A, Turunen A, Dervenis C. 14th Annual Meeting, European Society of Coloproctology (ESCP), Vienna, Austria, September 2019.
- Preoperative predictors of advanced local or locoregional disease in patients with non-metastatic colon cancer: results from a prospective audit.Kechagias A, Pengermä P, Katunin J, Sofianidis A, Turunen A, Dervenis C. 14th Annual Meeting, European Society of Coloproctology (ESCP), Vienna, Austria, September 2019.
- Calcification of the descending thoracic aorta predicts anastomotic leakage of esophagogastric anastomosis after Ivor-Lewis esophagectomy.Kechagias A, Ukkonen M, Wirta E, Tyrväinen T. European Society for Diseases of the Esophagus Meeting (ESDE 2017), Utrecht, the Netherlands, November 2017.
- Index C-reactive protein predicts increased severity in acute sigmoid diverticulitis. Kechagias A, Sofianidis A, Zografos G, Leandros E, Alexakis N, Dervenis C. European Society of Coloproctology – ESCP 13th Scientific and Annual Meeting, Nice, France, September 2018.
- Posterior Retroperitoneoscopic adrenalectomy: our experience from the first 216 cases between 2010-2018. Pappinen P, Metso S, Taha I, Hämäläinen P, Kechagias A, Huhtala H, Sand J, Laukkarinen J. Surgical Days, Levi, Finland, March 2018.