Practising at Life St George’s Hospital as a specialist cardiologist in Gqeberha, Dr Warren Muller is passionate about all diseases affecting the heart and managing comorbidities that may lead to heart problems.

He strives to empower his patients by treating heart conditions and managing debilitating diseases. Dr Muller thrives on helping his patients overcome their illnesses by performing coronary and structural interventional procedures and implementing medicinal practices when treating chronic conditions that could lead to coronary artery disease or heart failure.



Coronary interventions

Percutaneous coronary intervention (coronary angioplasty) is a procedure that utilises a balloon at the end of the catheter and a stent to open blocked coronary arteries.

Structural Interventions

Most surgical interventional strategies address a range of cardiac conditions, including valvular conditions, whether acquired or congenital. Apart from genetics, structural heart disease may occur as a result of infection, injury or age.

Complex grown-up congenital heart disease

Tetralogy of Fallot, atrial and ventricular septal defects, univentricular heart, Ebstein's anomaly and transposition of the great arteries are some of the complex congenital heart lesions that are seen in Dr Muller’s practice. These congenital anomalies are closely managed in a multidisciplinary team.

Structural heart disease

Structural heart disease refers to defects of the valves or the heart muscle.

Common types of structural heart disease include:

  • Valves in the heart become narrowed or leaky. There are four valves in the heart which may become narrowed or leaky over time.
  • A hole between the heart’s upper chambers (atrial septal defect) or lower chambers (ventricular septal defect)
  • Thickening of the left ventricle’s muscle wall (hypertrophy)
  • Stiff and enlarged heart muscle (cardiomyopathy)
  • Inflammation of the heart muscle (myocarditis)
  • Heart disease in pregnant women
  • Heart failure

Caring for patients with comorbidities

High cholesterol (hypercholesterolemia), high blood pressure (hypertension), diabetes are some comorbidities that may affect the heart. Therefore, it is important to manage these underlying conditions to prevent heart failure.


Heart disease in pregnancy leads to poor outcomes. Heart conditions may arise during pregnancy which requires monitoring throughout the pregnancy. Dr Muller also provides pre-pregnancy assessments for patients who have heart conditions who would like to fall pregnant.

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Rapidly evolving and rewarding speciality