Researchers examined a large body of evidence involving 39,291 patients across 43 randomized controlled trials. The study focused on patients undergoing percutaneous coronary intervention (PCI) for acute or non-acute coronary syndrome. The goal was to compare procedures guided by intravascular imaging, such as intravascular ultrasound (IVUS) or optical coherence tomography (OCT), and physiology tools like fractional flow reserve (FFR), against standard angiography-guided PCI.
The main results showed that using IVUS or OCT was associated with a lower risk of major adverse cardiovascular events compared to angiography alone. Similarly, physiology-guided approaches like FFR also showed a benefit over angiography. When comparing imaging and physiology methods directly, IVUS appeared to offer a lower risk than iFR in this specific analysis. No safety concerns or adverse events were reported in the provided data.
The main reason to be careful is that while the statistical links are clear, these findings come from a network meta-analysis of existing trials rather than a single new experiment. Readers should take from this that advanced guidance techniques may offer advantages, but they are not automatically better for every patient. Decisions about which technique to use should involve a discussion with a cardiologist about the specific situation.
