How does a cardiologist decide whether a heart stent or cardiac bypass is best for the patient?

Doctor's Answers 1

When deciding between medical therapy, heart stents (angioplasty) or cardiac bypass surgery, I take into account the full picture based on factors such as:

  • Clinical presentation
  • Patients age
  • Mental and neurologic status
  • Location and severity of the blockages
  • Symptoms
  • Ability to take long-term blood thinning tablets and
  • Other issues such as diabetes, kidney function and heart failure along with patient expectations and preferences.

I also use validated specific “scores” to help decide the strategy such as “Syntax” score. These scores however, have to be interpreted in context to be meaningful and useful.

When the issue falls in the grey zone however, a Heart team comprising of the patient, interventional cardiologist, cardiac surgeon and often the general or family physician can help arrive at a suitable decision.

Coronary angioplasty (heart stent) in general leads to quicker recovery as there is no open-heart surgery involved and procedure is shorter. There are certain limitations such as possibility of disease progression inside or around the stent (uncommon with current drug-eluting stents and good technique during angioplasty) and the need to continue blood thinning medication for a longer period.

Cardiac bypass surgery can give long-term benefit when the narrowing is severe and extensive (ie throughout the blood vessel) with diabetes and poor heart function though this has to be considered in context (ie someone with general high risk for surgery such as the very elderly or with a previous stroke) may still be better off with angioplasty.

In many cases, however the angiogram helps in easy decision making and is quite straightforward and an open, transparent discussion helps in decision-making.

Similar Questions

How safe is an angioplasty, and what are the main risks of having an angiogram and angioplasty in Singapore?

Angioplasties are very safe in this day and age with modern medicine and technological advancements.

Photo of Dr Julian Tan

Answered By

Dr Julian Tan

Cardiologist

Why do doctors not perform angioplasties for minor blocked heart vessels?

All procedures are carried out after a clinical assessment of risk vs benefit. As mentioned above there is always a risk to any invasive procedure and angioplasties on minor vessels just do not justify a patient undergoing the risk of an coronary angioplasty as some of the risk, though of low frequency, if they do occur can be significantly life altering. And while treating a severe narrowing in an important vessel has a favourable prognostic benefit (ie prolongs life but this is a hidden benefit) the same does not pply to smaller vessels.

Photo of Dr Nandakumar Ramasami

Answered By

Dr Nandakumar Ramasami

Cardiologist

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