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Risks And Complications


Risks And Complications

The overall risk for complications from cardiac catheterization is about 1 in 1000. Contrast dyes cause adverse effects in almost 1 out of 10 patients. The common side effect is nausea or vomiting. Some of the complications due to dye allergy are -

  • Fast heartbeat
  • Slow heartbeat
  • Nausea
  • Vomiting
  • Shock
  • Kidney failure
  • Epilepsy
  • Itching
  • Rashes

Few other complications are -

  • Bleeding at the insertion site
  • Damage to the blood vessels used for catheter entry
  • Infection
  • Ventricular arrhythmias
  • Pneumothorax [air collection between the chest wall and the lungs]
  • Cardiac tamponade [fluid collection around the heart]
  • Heart attack
  • Stroke [0.1%]
  • Air embolism
  • Death [0.1- 0.2%]

In rare cases, patients undergoing angiogram will be shifted to the operation room for an emergency bypass surgery.

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