Welcome to the Doctor's website Dr Athanasios D. Kleontas

BSc, MD, MSc(ET), MSc(MHSC), Dr(Med)Sc, BTS, Dedicated Thoracic Surgeon.

Cardiothoracic surgeon is a surgeon who is trained in both divisions of Cardiothoracic Surgery:

the Thoracic Surgery and,

the Cardiac Surgery 

Dr Athanasios Kleontas is an Dedicated Medical Director with a demonstrated history of working in the thoracic surgery field and the information technology and services industry. Skilled in Thoracic Surgery, Minimal Invasive Thoracic Surgery (VATS - Robotic), Medical Devices, Oncology, Emergency Medicine, Critical Care Medicine, and Healthcare Information Technology (HIT). Strong research professional with a Doctorate of Medical Science, Dr(Med)Sc, focused in Lung Oncology from Faculty of Medicine of Aristotle University of Thessaloniki (A.U.Th.).

In this sense, the thoracic surgeon Athanasios D. Kleontas has been methodically specialized in Thoracic Surgery and now deals mainly with the diagnostic approach, surgical treatment and perioperative care of chest disease and trauma, including diseases and trauma of lungs, mediastinum, pleural cavity, tracheobronchial tree, chest wall, diaphragm, esophagus and pericardium. This subject, in more detail, includes physiology, imaging techniques and functional assays of thoracic organs, surgical oncology, thoracic and especially surgical techniques applied for the treatment of chest diseases. Surgical techniques include, among others, and minimally invasive and thoracoscopic, diagnostic and therapeutic techniques, surgical and endoscopic techniques for staging of tumors of intrathoracic organs, diagnostic and interventional endoscopy of the tracheobronchial tree and the esophagus and the extracorporeal life support techniques.

In collaboration with the Cardiac surgeon of the Cardiothorasic team, the surgeon is able to offer all services related to the subject of Cardiovascular Surgery.

Recent scientific activities

Interesting Cases

November 2023
October 2023
Chylothorax case
June 2023
Multiple Ribs Fractures Case
April 2023
December 2022
December 2022
Non neoplastic tracheal stenosis Case
December 2022
Left Intrapericardial Pneumonectomy Case
September 2022
Subclavian Tumor Case
January 2022
November 2021
October 2021
Traumatic Pneumothorax Case
July 2021
February 2021
Giant Mediastinal Thymoma Case
June 2020
Tracheal Tumor Case


The incidence of metastatic malignant pleural effusion (MPE) correlates with the primary tissue malignancy. Based on a recent meta-analysis…Read more


Call +306936202500
Ermou 73, 3rd Floor, Thessaloniki

Visiting hours
Mon - Fri: 18:00 - 21:00

You can arrange an appointment with the doctor

In the morning the Thoracic Surgeon, Dr Athanasios Kleontas MD is at the Interbalkan Medical Center of Thessaloniki, while in the evening he is at his private office (73, Ermou St).

+30 2310 - 400000

Office 11, 2nd floor. Dec 1742



Doctor is available (by mobile) 24 hours a day, 7 days a week.

You meet him only by appointment at his private office:

Monday to Friday : 18.00 - 21.00

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