Webinar 10 | Assessment of Left Main Stenosis-Intravascular Imaging Guided LM Interventions, Dr. Yoshinobu Murasato

Intravascular Imaging Guided LM Interventions, Dr. Yoshinobu Murasato

Video Transcription

Video Summary

Dr. Yoshimura Sato from Kyushu Medical Center discussed the role of intravascular imaging guidance in left-main (LM) coronary intervention, based on a study of 743 patients who underwent percutaneous coronary intervention (PCI) in Japan. Imaging guidance was used in 98% of cases, leading to a low two-stent implantation rate (8.8%) and high procedural success (99%). The study showed that routine imaging optimizes stent placement, reduces unnecessary two-stent use, and helps detect critical vessel issues not visible on angiography. One-year major adverse cardiovascular and cerebrovascular event (MACCE) rates were low, but higher risk was associated with two-stent use, mechanical support, higher CCS class, and low left ventricular function. ACS patients had higher early mortality, but no difference in revascularization rates, indicating imaging's effectiveness even in complex and high-risk cases. Imaging also helps identify and correct stent malposition and deformation, improving long-term outcomes. The session emphasized the critical role of imaging in LM PCI strategy and patient management.

Keywords

intravascular imaging

left-main coronary intervention

percutaneous coronary intervention

two-stent implantation

major adverse cardiovascular events