Mr Martin Kostolny, Consultant Cardiothoracic Surgeon

Mr Martin Kostolny

Consultant Cardiothoracic Surgeon

Book online

Mr Martin Kostolny MD CCST

Consultant Cardiothoracic Surgeon


Mr Martin Kostolny

Consultant Cardiothoracic Surgeon MD CCST

Book online

Areas of expertise

  • Neonatal and complex infant surgery
  • Surgery for CCTGA
  • Grown-up congenital heart surgery
  • Complex unifoculisation
  • Surgery for congenitally corrected transposition


  • The Harley Street Clinic

    35 Weymouth Street, London, W1G 8BJ

About Mr Martin Kostolny

GMC number: 6072501

Year qualified: 1993

Place of primary qualification: Univerzita Komenskeho v Bratislave

Mr Martin Kostolny serves as a consultant cardiothoracic surgeon at Great Ormond Street Hospital (GOSH) and The Harley Street Clinic. He specialises in aortic valve repair, congenitally corrected transposition of the great arteries, and complex biventricular repairs. His expertise extends to surgical interventions for pulmonary atresia, ventricular septal defects (VSD), and major aortopulmonary collateral arteries (MAPCAs).

Mr Kostolny earned his degree in medicine from Comenius University. He underwent training at renowned institutions, including the Heart Centre at the Children's Hospital in Bratislava under Prof Hraska, the German Heart Centre in Munich under Prof Lange, and GOSH. His professional journey led to his appointment as a consultant at the GOSH Cardiothoracic Unit in 2006. He currently serves as the head of clinical service for cardiothoracic surgery. The National Congenital Heart Disease Audit in 2019 recognised the GOSH congenital heart surgical programme for consistently achieving outcomes higher than predicted for four consecutive years.

Beyond his contributions at GOSH, Mr Kostolny actively supports congenital heart programmes worldwide, collaborating with medical professionals in Serbia, Germany, France, and Turkey. A sought-after expert, he is a frequent presenter at international meetings and holds memberships in various professional societies. Mr Kostolny has contributed significantly to the field, with authorship and co-authorship of over 70 manuscripts and book chapters.

His areas of expertise and services include aortic valve repair, complex biventricular repairs, major aortopulmonary collateral artery (MAPCA) surgery, pulmonary atresia surgery, ventricular septal defect (VSD) surgery, and addressing issues related to the dysfunction of the aortic valve, major aortopulmonary collateral arteries (MAPCAs), pulmonary atresia, and ventricular septal defects (VSD).

Areas of expertise

  • Arterial surgery
  • Thoracic surgery
  • Lung cancer surgery
  • Heart failure

Professional memberships

American Association for Thoracic Surgery
European Association for CardioThoracic Surgery
European Congenital Heart Surgeons Association
Society of Cardiothoracic Surgeons, England and Ireland

Articles by Mr Martin Kostolny

Myocardial function following repair of anomalous origin of left coronary artery from the pulmonary artery in children

P358taking surgery out of reality: a repair of double outlet right ventricle planned by means of virtual reality

Staging of surgical procedures in comorbid congenital tracheal stenosis and congenital cardiovascular disease

Grown-up congenital heart surgery in 1093 consecutive cases: a ‘hidden’ burden of early outcome

Intracommissural and intramural left coronary artery in a neonate with common arterial trunk

The utility of aortic valve leaflet reconstruction techniques in children and young adults

My video is better than yours: a new chapter for perioperative assessment of function?

Taking surgery out of reality: a virtual journey into double outlet right ventricle

Repair of pulmonary artery sling with tracheal and intracardiac defects

86 long-term outcome of critical aortic valve stenosis