Total Volume of Cardiothoracic Surgeries, 2016 (N =4,280), 2017 (N=4,144)

In 2017, IJN surgeons performed 4,144 cardiothoracic surgeries such as:

  • Coronary Artery Bypass Grafting (CABG)
  • Congenital Heart Surgery
  • Heart valve repair and replacement
Open and Closed Heart Surgeries

In 2017, IJN surgeons performed 1,088 closed heart surgeries and 3,056 open heart surgeries:

  • Closed Heart: Thoracic surgery, Vascular surgery, Patent Ductus Arteriosus (PDA) ligation, Blalock Taussig (BT) Shunt, coarctation repair
  • Open Heart: CABG, Congenital Heart surgery, Heart valve repair and replacement, Aortic root surgery
Cardiothoracic Surgeries by Category


Risk Factors for Cardiac Surgeries (N =4,257), 2015 – 2017

Patients with complex medical backgrounds present greater challenges for cardiac procedures. Almost half the patients had diabetes mellitus at time of surgery.

In 2017, patients who have had cardiac surgeries had more complex backgrounds than patients at comparable hospitals.

Actual and Predicted Survival Rates for All Types of Open Heart Surgeries

All operations

The actual survival for all operations were 96.3% in 2016 and 2017 respectively; both figures are better than the predicted survival rates estimated by the Euroscore and Parsonnet scoring systems.


Isolated Coronary Artery Bypass Grafting (CABG)

The actual survival rates for CABG surgery were 97.4% in 2017 and 97.1% in 2016 respectively; both better than predicted survival rates estimated by the Euroscore and Parsonnet scoring systems.


Low Risk Coronary Artery Bypass Grafting (CABG) 2016, (N=1,469) & 2017, (N=1,357)

The actual survival rate for CABG surgery in 2017for patients with low risk factors were 99.3% (Euroscore) and 100% (Euroscore II). This means that there is only a less than 1% chance of not surviving the surgery.

Mortality Rate for Isolated Mitral Valve Repair, 2015 to 2017 (Total no. of Isolated Mitral Valve Repair patients = 402)

Mitral Valve Repair is preferred over valve replacement whenever suitable. There was no death (mortality) for patients undergoing mitral valve repair from 2015 to 2017

Mortality Rate for Ventricular Septal Defect (VSD) and related procedures, 2015-2017

VSD Closure is the commonest surgery for acyanotic congenital heart defects. The death (mortality) rate for VSD closure is less than 1%.

Mortality Rate for Tetralogy of Fallot (TOF) Correction and related procedures, 2015 to 2017

TOF correction is the commonest surgery performed for cyanotic congenital heart defects. The death (mortality) rate for TOF correction is around 1%.

Data validated by Quality Management, IJN
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