Cardiologists for Heart Triplex in Prefecture of Thessaloniki

Military cardiologist Papanastasiou Xristos was admitted to the Military School of Officers Corps (S.S.A.S.) in 2006 and obtained his Medical Degree (MD) from the Medical School of Aristotle University of Thessaloniki (A.U.Th.) in 2012, graduating with the grade "Very Good" (8.1).

In 2016, he completed his postgraduate studies in "Medical Research Methodology" at the Medical School of A.U.Th., achieving the grade "Excellent" (9.4). Subsequently, he specialized for two years in the Pathology Clinic of the 424 General Military Training Hospital and for four years in the 1st University Cardiology Clinic of the General Hospital AHEPA.

In June 2025, he completed his doctoral thesis with the grade "Excellent with Distinction," on the topic: "The diagnostic and prognostic value of cardiac magnetic resonance imaging in patients with heart failure."

He holds the European Diploma in Cardiology and the European Diploma in Echocardiography, following successful participation in pan-European examinations.

Throughout his medical career, Dr. Papanastasiou has collaborated in research with leading universities in Europe and the United States of America, publishing significant scientific articles in reputable international journals with a high impact factor, covering the entire spectrum of cardiovascular diseases.

Simultaneously, he has served as a reviewer for prestigious international scientific journals such as the Journal of the American College of Cardiology: Cardiovascular Imaging, American Heart Journal, Heart (official journal of the British Cardiovascular Society), and International Journal of Cardiology.

Dr Ouzounidis Ioannis is a Cardiologist and maintains a private clinic in Thessaloniki. He is a graduate of the Medical School of Kyban State University. The doctor is a Scientific Associate of the General Clinic of Thessaloniki and the "Cyan Cross" Clinic of Thessaloniki, where he also serves as the Scientific Head of the Ultrasound Department. In his private practice, he offers a wide range of services, personalized to the needs of each patient.

Voloudakis Konstantinos is a Specialist Cardiologist and maintains a private practice in Thessaloniki. He holds a PhD from the Medical School of Democritus University of Thrace and a medical degree from the Medical School of Aristotle University of Thessaloniki. He specialized in Cardiology at the General Hospital of Thessaloniki "G. Papanikolaou" and underwent further training in the Intensive Care Unit of Peterborough District Hospital in Cambridge and at Karolinska Hospital in Stockholm, Sweden. Dr. Voloudakis served as an Attending Physician for 20 years at the General Hospital of Thessaloniki "Agios Pavlos" and as Coordinating Director for 4 years in the Cardiology Department of the General Hospital of Chalkidiki. In his private practice, he offers a wide range of services, respecting the individual needs of each patient.

Katranas Sotirios is a Specialist Cardiologist and Doctor of Cardiology from the Aristotle University of Thessaloniki with a private practice in Thessaloniki. He serves as a Scientific Collaborator in Cardiomyopathies (1st Cardiology Clinic) and Cardiopathies in patients with Neuromuscular Diseases (2nd Pediatric Clinic - MDA Hellas) at the AHEPA University Hospital of Thessaloniki. He is a Consultant Cardiologist in the National Health Service (NHS) of the United Kingdom and a former Scientific Collaborator at the Cardiothoracic Surgery Clinic of Papageorgiou Hospital. He studied Medicine at the Aristotle University of Thessaloniki, specialized in Cardiology at the AHEPA University Hospital of Thessaloniki, in Cardiomyopathies at London hospitals Saint Bartholomew's and Royal Brompton, and in Cardiopathies related to Neuromuscular Diseases at the Neuromuscular Complex Care Centre of the National Hospital of Neurology and Neurosurgery in London. Additionally, he is an expert in Advanced Ultrasound Techniques (transesophageal echocardiography and stress echo - specialization at the London hospitals Saint Bartholomew's, Royal Brompton, and North Middlesex) and holds a license from the Ministry of Health. Finally, he specializes in Lipidology and Arterial Hypertension and manages the full spectrum of cardiac diseases.

Fokas Xaris is a Cardiologist who maintains a private practice in Ano Toumpa, Thessaloniki. He holds a medical degree from the Aristotle University of Thessaloniki Medical School and has completed advanced training with the National Emergency Aid Center (EKAB) in emergency pre-hospital medicine. He has served as a cardiologist at the Elderly Care Unit "Frontizo," as a Scientific Associate in the Cardiology Clinic of the General Hospital of Thessaloniki "Papageorgiou," as well as a Scientific Associate at the "Genesis" Clinic in Thessaloniki. He is specialized in echocardiography and clinical cardiology and has significant experience in the treatment of hypertension, arrhythmias, and heart failure. Finally, in his private practice, he diagnoses and treats conditions and provides services covering the full spectrum of cardiology.

Dr. Katsare Zaxaroula is a Cardiologist who maintains a private practice in Pefka. After completing her medical studies at the Victor Babes University, she specialized in Cardiology at the General Hospital Th. "G. Papanikolaou." Additionally, she holds the European Diploma in Cardiology “European Examination in General Cardiology” from the European Society of Cardiology. She possesses clinical experience and serves as a Scientific Collaborator at Euromedica General Clinic. Furthermore, she has significant research experience, evidenced by numerous scientific publications and posters at national and international levels, as well as her participation in many conferences worldwide.

Parparas Konstantinos is a Cardiologist with a private practice in Thessaloniki. He studied at the Aristotle University of Thessaloniki and specialized in clinics in Germany. He has substantial experience, having worked as a Cardiologist Consultant in major German clinics. He specializes in interventional cardiology and has been performing angioplasties in coronary arteries since 2014 to the present (performing several thousand angioplasties, including many of high complexity, e.g., in left main coronary artery stenosis, Rotablation procedures), and since 2020, he has also been involved in transcatheter aortic valve implantation (TAVI).