Dogukan Aktas Md
- 5 Excellent • 48 reviews
- 20 years of experience
- Turkey, Istanbul, Istanbul Florence Nightingale Hospital
Dr. med. David Weidenauer is a Vienna-based specialist in internal medicine and cardiology. He studied medicine from 2007 to 2013. He completed specialist training in internal medicine and a subspecialty in cardiology.
He focuses on the prevention, diagnosis, and treatment of cardiovascular diseases. His areas include arrhythmias, hypertension, cardiomyopathies, coronary artery disease, and heart failure. He is experienced in echocardiography, Holter monitoring, and stress testing. He provides guideline-based therapies and offers preventive, patient-centered care at Wiener Privatklinik and associated centers.
Dr. Victor Alexander Krol - Chief of Gastroenterology, Internal Medicine and Obesity Treatment Center at Martinus Hospital
Dr. Victor Alexander Krol is a highly qualified specialist, heading the departments of gastroenterology and internal medicine. With many years of experience and deep knowledge in his field, Dr. Krol has established himself as an outstanding expert, providing patients with comprehensive treatment and an individual approach. He actively uses the latest methods of diagnosis and treatment of diseases of the gastrointestinal tract, metabolism, as well as diseases of the cardiovascular and respiratory systems.
Dr. Krol is also the director of the certified Obesity Treatment Center at Martinus Hospital, which provides surgical and endoscopic treatments for obesity. The center uses advanced technology to diagnose and treat obesity (adiposis), including methods such as bariatric surgery, endoscopic weight loss, and specialized programs for patients with different stages of obesity. The center is certified to high standards and has excellent results in the treatment of this serious disease.
The Gastroenterology Department, headed by Dr. Krol, diagnoses and treats diseases of the stomach, intestines, liver, pancreas, and gallbladder. The doctors of the department use a wide range of methods, including endoscopic procedures, ultrasound, and other modern diagnostic technologies.
The Department of Internal Medicine covers a wide range of diseases, including cardiology, diabetology, infectology, and therapy of respiratory and renal diseases. Dr. Krol and his team provide a comprehensive approach to treatment using the most advanced methods of medicine.
Thanks to his high professionalism and humane approach to each patient, Dr. Krol deservedly enjoys the respect of colleagues and patients.
He is an expert in cardiac arrhythmia, pacemaker implantation, internal defibrillators and catheter ablation; and he conducts diagnostic electrophysiological studies.
He also carries out extensive teaching work as a Senior Lecturer of the Medicine Department of the Malaga University, where he teaches the subject Diseases of the Circulatory and Respiratory Systems to fourth-year medical students.
He is the author of over 100 scientific publications in influential journals. At the same time, he has contributed to the preparation of clinical practice guides and is the author of 23 books and chapters of scientific titles in the speciality.
Professional experience
University Degree in Medicine and Surgery (1978) obtained at the Zaragoza University.
Degree as Doctor in Medicine by the Zaragoza University with final thesis “Cardiac Automatism and Conduction in a Model of Experimental Heterotopic Cardiac Transplantation. Effects of Verapamil”, which obtained a cum laude award.
Training as a Resident Doctor in Cardiology at Clínica Puerta de Hierro in Madrid (1979-1984).
Cardiology Medical Consultant and the Head of the Arrhythmia Unit at Clínica Puerta de Hierro (1985-1992).
Other positions:
Coordinator of the Implantable Defibrillator working team of the Spanish Cardiology Society (2009 – 2016).
Member of the European Society of Cardiology.
Member of the European Heart Rhythm Association.
Member of the Spanish Cardiology Society.
Member of the Andalusian Cardiology Society.
Member of the Editorial Committee of the Spanish Cardiology Journal.
Member of the Editorial Committee of Cardiocore.
Member of the Editorial Committee of Cardiac Stimulation Notebooks.
The Cardiology Unit of Quirónsalud Marbella Hospital is made up of a medical team with large experience in the diagnosis and treatment of heart diseases, as well as employing the most advanced technologies, both in the clinical area and in the area of haemodynamics and arrhythmia.
Diseases, treatments and techniques:
- Adult and children cardiology consultation with the performance of supplementary tests, all within one appointment.
- Specific consultations for arrhythmia
- Paedriatic cardiology
- Colour Doppler echocardiography and stress echocardiography
- Stress test
- 24-hour and long-term Holter EKG
- CT coronary angiogram
- Cardiac magnetic resonance imaging (MRI)
- Tilt table testing
- Cardiac rehabilitation
Cardiac haemodynamics
- Diagnostic cardiac catheterisation and percutaneous treatment of ischaemic heart disease with angioplasty and stent implant
- Myocardial infarction percutaneous treatment programme
- Transcatheter aortic valve implantation (TAVI)
- Percutaneous repair of the mitral valve (Mitral clip)
- Percutaneous closure of interatrial communication
- Percutaneous closure of left atrial appendage
Arrhythmia Unit
- Diagnostic electrophysiological study
- Catheter ablation
- Cryoablation of atrial fibrillation
- Ablation using a complex arrhythmic substrate navigator
- Pacemaker implantation
- Automatic endovenous and subcutaneous implantable
defibrillator
Cardiac surgery
- Surgery with and without extracorporeal circulation
- Minimally-invasive surgery with an early extubation
Dr. Marc Ulrich Becher is an interventional cardiologist and heart failure specialist at Städtisches Klinikum Solingen. He is known for performing advanced procedures such as coronary angiography, radiofrequency ablation with 3D mapping, carotid angioplasty, and stenting.
Dr. Becher’s clinic carries out about 3,000 to 4,000 diagnostic and therapeutic procedures each year. These include complex coronary interventions, catheter-based valve replacements, and structural heart procedures. He is experienced in using advanced imaging techniques like IVUS and OCT for accurate diagnosis and treatment planning.
Dr. Becher is dedicated to providing thorough and compassionate care. He uses modern therapies for both acute and chronic cardiovascular diseases, focusing on patient safety and positive outcomes.
Education:
Bachelor's Degree
PhD/Medical Specialty
Experience:
General Practitioner
Research Assistant Doctor
Specialist Doctor
Doctor Academic Staff
Wissarut Sakulpaptong, M.D., is a board-certified cardiologist and a cardiology staff member at King Chulalongkorn Memorial Hospital. He specializes in advanced echocardiography. His work includes transthoracic and transesophageal studies, strain analysis, 3D and stress echocardiography, and imaging for congenital heart disease. He also holds an M.Sc. (Medicine) from Chulalongkorn University.
His leadership roles include Chief Fellow (2024) and Chief Resident (2022). His awards include Second Prize at the 2025 Echocardiography Annual Scientific Meeting (Heart Association of Thailand), 2021 Outstanding Second-Year Resident, and 2017 Outstanding Medical Graduate. He developed an NSTEMI care pathway, a Screening Echocardiogram Project, and a Home-Visit Warfarin Clinic. He presented research on sepsis-induced myocardial dysfunction. He also contributed to Thailand’s 2022 migraine guideline.
Dr. Gabriel Crasmariu is an interventional cardiologist with advanced expertise in minimally invasive treatments for cardiovascular disease. He is a member of the Romanian Society of Cardiology and the European Society of Cardiology.
He performs coronary angiography and angioplasty with stent placement. His focus includes complex coronary artery disease, peripheral arterial disease, renal denervation, and TAVI. He also provides specialized heart failure assessments. He takes part in multidisciplinary decisions for patients who may need cardiac surgery.
Medical Education
School of Medicine, Adnan Menderes University
Medical Residency
Department of Cardiology, School of Medicine, Mustafa Kemal University
Areas of Interest
Invasive Cardiology.
Balloon Angioplasty & Stent Implantation for Coronary Arteries & Carotid Artery & Peripheral Arteries.
Permanent Cardiac Pacemaker Implantation (CPM, ICD, CRT).
Heart Attack (Acute Myocardial Infarction) & Heart Failure & Heart Valve Diseases & Heart Rhythm Disorders (Cardiac Arrhythmias).
Hypertension (HT) & Hyperlipidemia (HLD)
Membership
Turkish Medical Association (TTB).
Turkish Society of Cardiology (TKD).
European Society of Cardiology (ESC)
Dr. Mustafa Dogdus is a cardiologist who graduated from Ege University Faculty of Medicine. He has broad experience in treating complex heart conditions. His expertise includes arrhythmias, atrial septal defect (ASD), atrial fibrillation, AVRT, AVNRT, bradycardia, heart failure, coronary artery disease, and structural heart diseases.
He is skilled in advanced interventional procedures. These include ASD, PDA, and VSD closure, EPS-ablation, ICD-CRT-D implantation, and percutaneous coronary and peripheral interventions. Dr. Dogdus worked at Karaman State Hospital and Uşak University Training and Research Hospital cardiology clinics from 2017 to 2022.
He is an active member of the Turkish Society of Cardiology, the European Society of Cardiology, and the Cardiovascular Academy. He also holds board and working group positions in several national and international cardiology organizations.
Dr. Ertuğrul Ercan is a Professor of Cardiology. He completed his training at Ege University and Çanakkale Onsekiz Mart University. His main areas of expertise are interventional cardiology, atherosclerosis, valve diseases, and coronary artery disease. He also focuses on inflammation and coagulation, cardiovascular immunology, and stem cell therapy.
Dr. Ercan has held key academic and administrative positions. He served as Head of Cardiology and Dean at Çanakkale Onsekiz Mart University. He was also the Medical Director at İzmir Medical Point Hospital. He gained international experience at the Cleveland Clinic and in Melbourne, Australia.
He holds the European Cardiologist Diploma and is a Fellow of the European Society of Cardiology. Dr. Ercan is also a member of several national and international cardiology associations and working groups.
Dr. Ugur Taskin is a specialist in interventional cardiology. He treats conditions such as high cholesterol, heart valve diseases, heart failure, and coronary artery disease. He received his medical degree from Ankara University Faculty of Medicine.
Dr. Taskin worked at Celal Bayar University Faculty of Medicine from 2009 to 2014, where he gained valuable experience. He is a member of the Turkish Society of Cardiology and the Izmir Medical Chamber. These memberships show his dedication to high standards in cardiology.
Dr. Humayun Kakar is a cardiologist. He earned his medical degree from Eskişehir Osmangazi University between 2007 and 2014. He completed his cardiology residency at İzmir Dokuz Eylül University from 2015 to 2020. In 2024, he received advanced training in heart failure at the University of Zurich in Switzerland.
He has worked at İzmir Ekonomi Üniversitesi Medical Point Hospital and Konya Cihanbeyli State Hospital. He also took part in advanced heart failure education at the University of Zurich.
Dr. Kakar is a member of several professional organizations. These include the European Society of Cardiology, Turkish Society of Cardiology, Heart Failure Association, American College of Cardiology, Cardiovascular Academy Association, and the European Association of Percutaneous Cardiovascular Interventions (EAPCI).
He studied at Ankara University Faculty of Medicine.
He completed his medical education in 2010. He worked as a General Practitioner in Van’s Özalp district due to the state service obligation between 2010 and 2011.
Between 2011 and 2016, Doctor Mehmet completed his specialization in Cardiology at Cumhuriyet University in Cardiology Department.
He worked as a Specialist Doctor in the Erciş District of Van due to the State Service Obligation in the years 2016-2018. Dr. Maraseli Has been working as a Specialist Doctor at Avicenna International Hospital since August 2018.