Читать книгу Interventional Cardiology - Группа авторов - Страница 176

Pressure wire measurement after intervention provides additional information to inform the operator on the hemodynamic gain of the intervention. This data has been shown to alter further interventional decisions, and in many cases, where an optimal physiological result, further stents and optimization may be necessary. In cases where the intervention has been performed using the pressure wire as the principle primary wire, then a measurement can be readily made by reconnecting the pressure wire to the console system. Further intracoronary nitrates should be administered, and the guiding catheter should be flushed. In the post‐PCI state, resting flow states have typically resumed by the time the balloon is withdrawn and the catheters have been flushed. In practical terms, no additional delay over and above what would occur during intervention is required to make a repeat resting measurement. Once measurements have been made, the pressure wire should be withdrawn to the guiding catheter to assess for pressure drift. In long interventional cases, there may be significant drift, which would mandate repeat measurement. In cases where the intervention was performed on another guiding wire, the pressure wire should be re‐introduced as described above. The sensor location should be maintained where possible.