Doctors for Aneurysm

Dr. Poullas Skeuos is a Neurosurgeon specializing in spinal pathology, founder of the Advanced Spinal Care Clinic – a center of excellence for spinal disorders, with over 20 years of medical experience and research in the application of new neurosurgical techniques. Since 1997, he has studied and implemented a novel minimally invasive surgical method using rigid endoscopes, and since 2002, with flexible endoscopes. More than 2,000 endoscopic procedures have been performed in total, predominantly addressing degenerative spinal pathology. Dr. Skeuos and his team practice at METROPOLITAN GENERAL, at his private clinic, as well as at the Advanced Spinal Care Clinic located in Marousi.

Velissariou Georgios is a Cardiologist and maintains a private practice in Acharnes. He specialized in cardiology at the 1st Cardiology Clinic of the General Hospital of Athens "Evangelismos" and has attended numerous seminars aimed at continuous professional development in his field. To date, he is a Scientific Collaborator of the HYGEIA group and a member of the Athens Medical Association. In 2024, after six months of training at the Onassis Cardiac Surgery Center, he obtained a license to perform stress echocardiography (stress echo).

Ο Ιατρός Κωνσταντίνος Θεμιστοκλής είναι Νευροχειρουργός και διατηρεί ιδιωτικό ιατρείο στους Αμπελόκηπους. Ειδικεύτηκε στην Νευροχειρουργική (2018) μετά από την εκπαίδευση στην Α’ Πανεπιστημιακή Νευροχειρουργική Κλινική του Γενικού Νοσοκομείου Αθηνών «Ο Ευαγγελισμός» (2013-2019). Εκεί απέκτησε ευρεία εμπειρία σε όλο το φάσμα της νευροχειρουργικής, καθώς και στην αντιμετώπιση της σπαστικότητας και του χρόνιου πόνου. Επίσης, έχει εργαστεί στην Νευροχειρουργική Κλινική του  Νοσοκομείου Royal Preston Hospital (2013) του Ηνωμένου Βασιλείου σε θέση Neurosurgical Fellow (Junior level) και μετεκπαιδευτεί στις Νευροχειρουργικές Κλινικές των Νοσοκομείων St George’s Hospital (2019-2020) και Leeds General Infirmary (2020-2021), αποκτώντας εκτεταμένη εμπειρία στην νευροχειρουργική ογκολογία, στις επεμβάσεις βάσης κρανίου, στην αγγειακή νευροχειρουργική και στην χειρουργική σπονδυλικής στήλης.

Έπειτα εργάστηκε ως Επικουρικός Επιμελητής Νευροχειρουργικής στο Γενικό Νοσοκομείο Αθηνών “Κοργιαλένειο-Μπενάκειο-ΕΕΣ” (2021-2024). Από το 2024 έως και σήμερα διατελεί σε θέση Επιμελητή Β’ του Ε.Σ.Υ., στο Γενικό Νοσοκομείο Πειραιά “Τζάνειο”.

Επίσης κατέχει τίτλο μεταπτυχιακών σπουδών μετά την ολοκλήρωση του προγράμματος “Μεθοδολογία Ιατρικής Έρευνας, Βιοστατιστική και Κλινική Βιοπληροφορική” του Τμήματος Ιατρικής του Πανεπιστήμιο Θεσσαλίας, καθώς και πιστοποιητικό εξειδικευμένης επιμόρφωσης ως Σύμβουλος Ιατρικής Δεοντολογίας και Βιοηθικής από το Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών. Από το 2023 είναι Διδάκτωρ  του Εθνικού και Καποδιστριακού Πανεπιστημίου Αθηνών, αφού ολοκλήρωσε την διδακτορική του έρευνα μελετώντας τον Νευροπροστατευτικό ρόλο της πρωτεΐνης Hamartin (TSC-1) κατά την εγκεφαλική ισχαιμία. Τα πειράματα διενεργήθηκαν στο Ίδρυμα Ιατροβιολογικών Ερευνών της Ακαδημίας Αθηνών, όπου και παραμένει μεταδιδακτορικός ερευνητής.

Έχοντας εκπαιδευτεί και εργαστεί σε μεγάλα νοσοκομειακά ιδρύματα του εξωτερικού και νοσοκομεία κορμού της Αττικής, διαθέτει μεγάλη εμπειρία για την αξιόπιστη αντιμετώπιση νευροχειρουργικών παθήσεων, παθήσεων σπονδυλικής στήλης και του χρόνιου πόνου.

Papamentzelopoulos Spyridon is a Cardiologist and operates a private practice in Piraeus. He was admitted to the Military Officers School of Corps and is a graduate of the Medical School of Aristotle University of Thessaloniki. He initially specialized in Pathology at the 401 General Military Hospital of Athens for two years, including nine months in the Intensive Care Unit, and subsequently specialized in Cardiology for four years at the Onassis Cardiac Surgery Center. There, he participated in the management of numerous and complex cardiological cases, while also performing hundreds of diagnostic (stress tests, echocardiograms, Holter monitoring, and others) and interventional procedures (coronary angiographies, angioplasties, cardiac catheterizations, intravenous pacing). Additionally, he has participated in international studies of new transcatheter techniques for treating cardiac valve diseases (TAVI), as well as in the monitoring of patients with heart failure (using left ventricular assist devices [LVAD]) and heart transplantation. At his private practice, he provides specialized solutions tailored to the needs of his patients.

Dr. Papasideris Xristos is a Vascular Surgeon - Angiologist, PhD holder from Democritus University of Thrace, maintaining private clinics in Marousi and Kallithea. He graduated from the Medical School of the University of Rome “La Sapienza” and holds a postgraduate diploma in "Vascular Surgery: Endovascular Techniques." He also completed advanced training at the Vascular Surgery Clinic of Heinrich – Heinle University in Düsseldorf, Germany. He has been a scientific associate at the Vascular Surgery Clinic of the University of Athens, the University General Hospital Attikon, as well as a collaborator and surgeon at private hospitals. During his specialty training, he worked at the Onassis Cardiac Surgery Center, Evangelismos Hospital, Konstantopouleio General Hospital of N. Ionia “Agia Olga,” and the University General Hospital of Alexandroupolis. Additionally, he teaches at the Medical School of the National and Kapodistrian University of Athens as part of the course ‘Vascular Surgery,’ has participated as a speaker in conferences and workshops, and has numerous presentations at international conferences and publications in internationally recognized journals. He is a member of the Hellenic Professional Association of Vascular Surgeons and a board member of the Angiology Society, the Hellenic Vascular Surgery Society, and the Union of EOPYY Physicians (ENI-EOPYY), serving as the General Secretary. Finally, he specializes in the latest minimally invasive endovascular techniques.

Ο Ρουκάς Κρίτων είναι Καρδιολόγος και διατηρεί το ιατρείο του στους Αμπελόκηπους. Είναι απόφοιτος της Ιατρικής Σχολής του Εθνικού και Καποδιστριακού Πανεπιστημίου Αθηνών και έχει ολοκληρώσει διδακτορική διατριβή (PhD) στην Ιατρική Σχολή του ίδιου Πανεπιστημίου, με βαθμό Άριστα. Έχει εξειδικευτεί στην Επεμβατική Καρδιολογία, έχοντας πραγματοποιήσει εκπαίδευση στο Guy’s & St Thomas’s Hospital στο Λονδίνο, καθώς και σε νοσοκομειακά ιδρύματα της Ελλάδας, μεταξύ των οποίων ο ΓΝΑ «Ο Ευαγγελισμός» και το ΠΓΝΑ «Κοργιαλένειο-Μπενάκειο» ΕΕΣ.

Παράλληλα, έχει εκπαιδευτεί στις σύγχρονες τεχνικές υπερηχοκαρδιογραφίας, όπως το stress echo, το διοισοφάγειο υπερηχογράφημα και το TDI, ενώ διαθέτει πιστοποίηση στην καρδιακή βηματοδότηση και στους εμφυτεύσιμους καρδιακούς απινιδωτές από την European Heart Rhythm Association (EHRA). Έχει επίσης λάβει πιστοποίηση στην Επεμβατική Καρδιολογία και στις Δομικές Καρδιοπάθειες, με εξειδίκευση στη διαδερμική εμφύτευση αορτικών βαλβίδων (TAVI).

Κατά τη διάρκεια της επαγγελματικής του πορείας έχει εργαστεί σε νοσοκομειακές μονάδες της Ελλάδας, έχοντας αποκτήσει εμπειρία στην Καρδιολογία και την Εντατικολογία. Έχει διατελέσει Επιμελητής Β΄ στη Γενική Μονάδα Εντατικής Θεραπείας του ΠΓΝΕ «Θριάσιο», καθώς και Επιμελητής Β΄ και Α΄ στο ΠΓΝ «Αμαλία Φλέμινγκ». Έχει επίσης αναλάβει καθήκοντα Διευθυντή Επεμβατικού Καρδιολόγου στον ΓΝΑ «Ο Ευαγγελισμός», όπου έχει δραστηριοποιηθεί στον τομέα της Επεμβατικής Καρδιολογίας.

Marinakos Athanasios is a Specialist Cardiologist with a private practice in the Ampelokipi area. He possesses significant experience in Clinical Cardiology as well as specialized knowledge in Interventional Cardiology and Advanced Echocardiography. The clinic offers Electrocardiograms, Cardiac and Thoracic Aorta Triplex Ultrasound, 24-hour Blood Pressure Holter, 24-48 hour/7-day Rhythm Holter monitoring, utilizing state-of-the-art equipment, and issues health certificates and attestations. For the diagnosis and treatment of complex cardiological cases, he collaborates with the H.H.G group, reputable diagnostic centers, and public healthcare facilities. He holds a medical degree from the Semmelweis University Faculty of Medicine in Budapest. He specialized in Cardiology at the General Regional Hospital of Tripoli and the Konstadopouleio New Ionia "Agia Olga" Hospital. At the Hemodynamic Laboratory of the latter, he received further training in Interventional Cardiology, and at the Onassis Cardiac Surgery Center, he trained in Latest Ultrasound Techniques. He has worked as a Consultant Cardiologist B at the Cardiology Clinic and Hemodynamic Laboratory of the General Hospital of Athens "Laiko," where he gained experience managing cardiology patients with significant comorbidities (pathological, rheumatological, surgical, nephrological, and oncological cases). He has also worked as a Consultant Cardiologist in the interventional cardiology team at the private Metropolitan Hospital, acquiring extensive experience managing cardiology patients undergoing complex angioplasties and transcatheter valve replacement procedures. He is a certified Basic and Advanced Life Support Resuscitator, an area in which he has substantial authorship and educational work. He actively participates in numerous conferences in Greece and abroad.

Amartolos Panagiotis is a Cardiologist and Doctor of Medicine from the Medical School of the University of Athens with a private practice in Chaidari. He studied at the Medical School of the University of Patras and specialized at the 1st Cardiology Clinic of the General Hospital of Athens "Evangelismos." He is certified to perform echocardiograms in cardiology and has many years of experience. He has worked in clinics while simultaneously serving as Head of Medical Services for shipping companies, where he introduced digital remote patient monitoring methods on ships (telemedicine). Additionally, he has an extensive research and publication record, reflected in his articles in both international and Greek scientific journals, as well as numerous presentations. Finally, he participates as a speaker at conferences and has made significant social contributions.

Dr. Papamixail Nikolaos is a Cardiologist with a private practice in Ampelokipi. He holds a medical degree from the Medical School of the National and Kapodistrian University of Athens and specialized in Cardiology at the Cardiology Clinic of the Military Fund Nursing Institution (NIMTS). He is an Associate at the "Athinaion" Clinic and Consultant Cardiologist at the 2nd Cardiology Clinic of the Euroclinic Athens. Additionally, he serves as the Scientific Director of the Cardiology Department at Euromedica Palaio Faliro, Consultant Cardiologist at the Bioclinic Athens, and Scientific Collaborator at the Hypertension Unit of the University Cardiology Clinic of the General Hospital of Athens "Hippocratio". Furthermore, the doctor has contracts with the Journalists’ Fund EDOEAP and the employees’ fund of the Bank of Greece ATPSYTE. Hospitalization and treatment for all cardiovascular diseases are available in a private clinic with all insurance funds and private insurance coverage. Finally, he actively participates in numerous conferences and seminars in Greece and abroad, presenting at Greek and international conferences and publishing in medical journals.

Triantafyllis Dimitrios is a Cardiologist who maintains private practices in Kypseli and Nea Psychiko. He holds a medical degree from the University of Ioannina with further training in Echocardiography (stress echo, transesophageal studies, three-dimensional imaging) from the Hippocrates Hospital of Athens and the Educational Program of the International Academy of Medical Ultrasound in Berlin. In addition to his private practice, he is a Scientific Associate - Cardiologist at DTHKA "Hygeia" and head of the Stress Echo Department at the Central Athens Clinic. He has also collaborated with the Euroclinic of Athens, where he gained significant experience in performing stress echo and transesophageal echocardiographic studies. At his cardiology clinic and laboratory, he offers comprehensive and specialized cardiological examinations covering the entire spectrum of cardiovascular diseases.

Moustardas Marios MD, MSc, PhD, FICA is a Vascular Surgeon - Angiologist, Director of the Vascular Surgery Department at the "Iasis" clinic in Chania, where he also sees patients in a private practice in Marousi. He holds a doctoral thesis in the Surgical Sector of the Medical School of the National and Kapodistrian University of Athens and a medical degree from Aristotle University of Thessaloniki. Additionally, he received advanced training in endovascular surgery at the European Vascular Masterclass in Amsterdam and in the use of laser for the treatment of varicose veins. Throughout his career, he has worked at numerous hospitals in Greece as an Attending Physician, in some of which he has served as Deputy Director, equipping him with the appropriate knowledge and experience to handle all vascular surgical cases. In his clinics, he employs the endovascular method – placement of stent grafts – and is capable of performing angioplastic restorations with balloons or stent placement in both central and peripheral vessels. Finally, he has published articles in international surgical scientific journals and maintains a continuous presence at Greek and international conferences on Vascular and Endovascular Surgery.

Dr. med. Galanis Nektarios is a Vascular Surgeon maintaining private vascular surgery clinics in Athens and Chalkida. He holds degrees in Medicine and Radiation Protection and is a Doctor of the Medical School of Ulm in Germany. He has been trained in vascular diagnostic ultrasound, endovascular techniques, and endovenous laser ablation techniques for varicose veins. He possesses extensive clinical experience, having worked for 18 consecutive years (2003-2020) in clinics abroad in Germany and Switzerland, and since March 2020, he has been professionally active in Greece.

The vascular surgeon has performed more than 4,500 procedures both abroad and in Greece.

Since 2020, after his repatriation, he has served as the Director of the 1st Vascular Surgery Clinic at "IASO Thessaly". From October 2022, for three consecutive years, he was the director of the 5th Vascular Surgery Clinic at "Metropolitan General", and since September 2025, he has been directing the 2nd Vascular Surgery Clinic at "White Cross - The Athens Clinic" in Athens.

From 2021 for three consecutive years, he has been a scientific associate at the Institute of Anatomy of the Medical School of Aristotle University of Thessaloniki, where he taught Anatomy to medical students. Since September 2025, he continues his academic and teaching activities at the same school, now holding the position of Assistant Professor of Medicine at AUTh Medical School.

Additionally, during the academic year 2024–2025, he served as a scientific associate in the Anatomy Laboratory of the Medical School of the National and Kapodistrian University of Athens.

Elena Xairetaki - Premedicare is a Cardiologist and a member of the medical team at the Premedicare Polyclinic. She is a graduate of the Medical School of the National and Kapodistrian University of Athens (NKUA) and provides her services as a Cardiologist while also serving as the Scientific Director of the BIOIATRIKI Group. She specialized in Cardiology at Evangelismos Hospital and has served as an Assistant Consultant at Pammakaristos Hospital. Combining her experience and recognized scientific expertise, she manages a wide range of cases encompassing the full spectrum of her specialty.