Utility of Near-Infrared Spectroscopy Intravascular Ultrasound in Predicting the Slow-Flow Phenomenon During
Naoya Otaka1, Kazuhiro Kamada1, Daisuke Furukawa1
1Department of Cardiovascular Medicine, Matsuyama Red Cross Hospital Ehime Japan.
Background:
Slow flow caused by distal embolization during percutaneous coronary intervention (PCI) worsens outcomes. Near-infrared spectroscopy with intravascular ultrasound (NIRS-IVUS) can quantify the preoperative lipid burden. We investigated the utility of combining measurement of plaque size and lipid burden.
Methods And Results:
We analyzed 91 stable-angina patients undergoing NIRS-IVUS-guided PCI. Slow flow (≥1-grade TIMI decrease) occurred in 17 (18.7%). Those lesions had larger plaque area (13.8 vs. 9.9 mm2, P<0.001) and higher maxLCBI4 mm (625 vs. 436, P<0.001). Cutoffs were 12.0 mm2 and 523, respectively. Either criterion identified all slow-flow cases (sensitivity 100%).
Conclusions:
Combined assessment of plaque area and maxLCBI4 mm enables simple and highly sensitive identification of lesions at risk of slow flow during PCI.
More Related Videos
05:07Author Spotlight: Improved Localization and Monitoring of Coronary Flow Reserve Using Modified PLAX View in Mice
Published on: August 25, 2023
04:44Author Spotlight: Enhancing Vascular Function and Physical Capacity in Cardiovascular Disease Through Novel Interventions and NIRS Technology
Published on: March 22, 2024
Related Concept Videos
Equipments Used To Measure Blood Pressure
This invasive approach involves cannulating a peripheral artery. During each cardiac contraction, pressure generates mechanical motion within the catheter, transmitted through rigid, fluid-filled tubing to a transducer. This transducer converts mechanical motion into electrical signals displayed as waveforms on a monitor. An automatic flushing system prevents blood backflow. Due to the potential risk of unexpected arterial blood loss, this method is primarily used in intensive...
Assessing Blood pressure using a doppler ultrasound
Pre-Procedural Guidelines for Doppler Ultrasound Blood Pressure Assessment:
Preparation of Equipment:
Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation
