Clinical Usefulness of Post-Stenting FFR

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Presentation transcript:

Clinical Usefulness of Post-Stenting FFR 2016. 12. 10 Joon-Hyung Doh, MD, PhD, FACC Associate Professor, Cardiac and Vascular Center Inje University Ilsan Paik Hospital Goyang, Korea

Definition of PCI Success Angiographic success : <20% DS with TIMI 3 flow after stent Procedural success : angiographic success without in-hospital MACE Clinical success : procedural success with relief of symptom and sign of ischemia 2001 AHA/ACC guidelines for PCI

Angiographic Gain Warrant Anatomic Stent Lumen Optimization Related Better Clinical Outcome?

Angiographic gain is not enough Angiographic gain is not enough! IVUS-guided stent optimization warrants better clinical outcome ADAPT-DES study IVUS-XPL study 5.8% 4.7% 2.9% 3.1% Witzenbichler et al, Circulation. 2014;129:463-470 Hong SJ et al, JAMA 2015. 314(20):2155-2163 Hong SJ et al, JAMA 2015. 314(20):2155-2163

Angiographic and IVUS Gain Warrant Optimal Physiologic Gain after Stent Implantation?

Physiologic gains of PCI Average percent changes in Pd/Pa, iFR and FFR after PCI Physiologic gain after PCI Nijjer SS et al, Heart 2013;99:1740–1748

Do we need to assess physiologic stent optimization?

Correlation Between Post-stent FFR and angiographic/IVUS parameters Hong SJ et al, JAMA 2015. 314(20):2155-2163 Doh JH et al, J Invasive Cardiol. 2015 Aug;27(8):346-51.

Correlation Between Post-stent FFR and angiographic/IVUS parameters Doh JH et al, J Invasive Cardiol. 2015 Aug;27(8):346-51.

IVUS-guided stent optimization warrants better clinical outcome IVUS-XPL randomized study Met vs not-Met IVUS Criteria: minimal stent lumen CSA ≥ distal reference segment lumen CSA Not Met IVUS criteria Met IVUS criteria Hong SJ et al, JAMA 2015. 314(20):2155-2163

IVUS stent lumen CSA Criteria Predict Future MACE after DES Binary restenosis and Long-term Patency after DES 5.5 5.0 Hong MK, et al. Eur Heart J, 2006:27:1305 Sonoda S et al, J Am Coll Cardiol 2004;43:1959-63

Post DES: matched IVUS minimal stent CSA to FFR 0.89 5.4mm² BMS MSA: 7.0mm2 Fearon et al, Circulation. 2001;104:1917-1922. Doh JH et al, J Invasive Cardiol. 2015 Aug;27(8):346-51.

Clinical Usefulness of post-stent FFR

Post Stent FFR registry (n=750) in BMS

FFR after DES Predicts Adverse Events (%) P < 0.01 FFR ≤ 0.9 FFR > 0.9 Nam CW et al,A JC 2011:107(12):1783-6

FFR after DES Predicts Adverse Events (%) P < 0.01 MACE ISR Nam CW et al,A JC 2011:107(12):1783-6

Prognostic Value of Immediate post-PCI FFR with BMS and DES Johnson NP, JACC 2014, 1641-1654

High Post-DES FFR Related with Better 3 year TVF-Free Survival Doh JH et al, J Invasive Cardiol. 2015 Aug;27(8):346-51.

Impact of post FFR on the prognosis death diffuse disease MACE free survival 574 patients (664 lesions) FU 31± 16 months. TVR MVD Agarwal et al, JACC int 2016

Understanding low post-stent FFR

Mechanism of low FFR after PCI Tonino et al, JACC int 2016

Distribution of Post-Stent FFR Prevalence Low post-stent FFR: 25-60% 27/42(39.1%) 86/115(74.7%) Matsuo A et al, Cardiovasc Interv and Ther 2012. Doh JH et al, J Invasive Cardiology 2015 2015 Aug;27(8):346-51.

Distribution of residual pressure gradient after PCI Matsuo A et al, Cardiovasc Interv and Ther 2012.

Post-stent FFR can provide information about hidden anatomic problem such as dissection Chung JH, shin ES et al, International Journal of cardiology 185 (2015) 29–33

Post-stent FFR can provide information about hidden anatomic problem such as dissection Chung JH, shin ES et al, International Journal of cardiology 185 (2015) 29–33

Low FFR or residual gradient after apparently successful stenting Focal problem in- or peri-stent Presence of diffuse disease FFR hyperemic pullback recording can discriminate the reason.

Impact of additional intervention on physiologic gain Agarwal et al, JACC int 2016

FFR for SB pullback after stenting

Post PCI FFR for LAD

Physiologic stent optimization can help our practice?

Summary Pressure wire can be used as a primary guidewire before-, during-, and post PCI. After angiographic successful stenting, hyperemic pullback FFR recording can provide very useful information on physiologic stent optimization. In patient treated by DES, post-stent FFR ≥0.86-0.90 could offer physiologic cut-off value for prediction of TVF-free survival. post-stent FFR ≥0.89 was relevant to IVUS MSA ≥5.4mm2 in terms of physiologic and anatomic parameters of optimal stent deployment.

Role of post-stent FFR on physiologic stent optimization FFR post PCI is useful to detect residual lesions or diffuse disease FFR post PCI can prevent unnecessary repeat procedures as well as correct improper peri-stent problem. Post-stent FFR offer prognostic value as well as pre- intervention FFR in patient treated by DES.

Thank you for your attention