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The ORBITA trial: A point of view

Vitor Dornela de Oliveira1, Fernando Rabioglio Giugni1, Eduardo Bello Martins2

  • 1Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil.

Revista Da Associacao Medica Brasileira (1992)
|April 12, 2018
PubMed

Insights

The ORBITA trial found percutaneous coronary intervention (PCI) offered no exercise benefit over placebo for stable coronary artery disease (CAD) patients. This challenges current guidelines recommending PCI for symptom relief in such cases.

Area of Science:

  • Cardiology
  • Interventional Cardiology

Background:

  • Stable coronary artery disease (CAD) treatment aims to improve prognosis and relieve symptoms.
  • Revascularization is indicated for symptomatic CAD patients refractory to drug treatment per guidelines.
  • Previous studies suggested angioplasty benefits angina and functional capacity in symptomatic stable CAD.

Purpose of the Study:

  • To critically evaluate the ORBITA trial's findings regarding percutaneous coronary intervention (PCI) in stable CAD.
  • To discuss the methodological issues, limitations, and clinical applicability of the ORBITA trial.

Main Methods:

  • The ORBITA trial investigated contemporary percutaneous coronary intervention (PCI) versus a placebo procedure.
  • The study population included patients with single-vessel stable CAD.
  • Exercise tolerance was a primary endpoint.

Main Results:

  • The ORBITA trial demonstrated no significant benefit of PCI over a placebo procedure in improving exercise tolerance.
  • This finding contrasts with previous assumptions about angioplasty's efficacy in symptomatic stable CAD.

Conclusions:

  • The ORBITA trial raises questions about the routine use of PCI for symptom relief in stable CAD.
  • Methodological considerations and clinical applicability of the trial's results require careful discussion.

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