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PROTECT: What Have We Learned Lesson 2: TMPG is associated with clinical and biomarker outcomes following PCI.

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Presentation on theme: "PROTECT: What Have We Learned Lesson 2: TMPG is associated with clinical and biomarker outcomes following PCI."— Presentation transcript:

1 PROTECT: What Have We Learned Lesson 2: TMPG is associated with clinical and biomarker outcomes following PCI

2 Association of Post PCI TMPG 3 with Adverse Outcomes % p=0.005 p=0.084 p=0.011 TMPG 0,1,2n=327 TMPG 3n=411

3 Association of CFR and Post-PCI TMPG with Clinical, Biomarker and Holter Outcomes D/MI/Ischemia 1.38 (-) vs 1.29 (+); P=0.1119.1% vs 11.4%; p=0.005 D/MI 1.38 (-) vs 1.25 (+); P=0.098.9% vs 5.6%; p=0.084 Holter 1.36 (-) vs 1.36 (+); P= 0.5812.8% vs 7.0%; p=0.011 Duration of Holter (Min) Rho = 0.0252; P=0.888.8 + 43.7 vs 2.9 + 24.2; p=0.034 Baseline tn 1.36 (tn-) vs 1.39 (tn+); P=0.690.32 vs 0.12; p=0.017 Rise in tn Rho = 0.0074; p=0.850.16 vs 0.15; p=0.89 Peak tn Rho = -0.0172; P=0.651.0 vs 0.65; p=0.033 Post PCI tn+ 1.36 (-) vs 1.45 (+); P=0.2478.1 vs 72.2%; p=0.08 Baseline CK-MB Rho = -0.0028; p=0.941.2 vs 1.0; p=0.048 Rise in CK-MB Rho = -0.0254; p=0.51 0.5 vs 0.5; 2 way p=0.31; 4 way of all TMPGs p=0.044 Peak CK-MB Rho = -0.0347; P=0.363.0 vs 2.3; p=0.017 Post PCI CK-MB+ 1.36 (CKMB-) vs 1.40 (CKMB+); p=0.9539.2% vs 30.5%; p=0.018 Coronary Flow Reserve (CFR) TMPG 0,1,2 vs TMPG 3

4 Multivariate Model Of Death / MI / Ischemia on Holter Through 48 Hours Odds ratio of death / MI / Ischemia on Holter 1.7 (95% CI 1.10 - 2.57, p=0.017) for closed muscle (TMPG 0,1,2) when adjusting for post PCI CFR (p=0.27, NS)

5 Lesson 3: What is the most powerful predictor of the baseline troponin before PCI?

6 Impaired Myocardial Perfusion on the Diagnostic Cath Circulation 2002;106:202-207

7 Association of Baseline Troponin I with the Pre-PCI TMPG Troponin I p<0.0001 Median: 0.36 Mean 3.28 + 7.07 Median: 0.07 Mean 1.47 + 3.86 N=289 N=362N=362 Odds of leaving cath lab with an open muscle were 6.2 times higher if you arrive to lab with an open muscle (p<0.001)

8 PROTECT: What Have We Learned Lesson 4: The peak and the rise in markers of myonecrosis is related not only to myocardial perfusion after PCI, but also to the myocardial perfusion before the PCI

9 Myocardial Perfusion Before and After PCI & Its Relationship to Rise in Markers of Myonecrosis Post PCI by Treatment Group Open Myocardium TMPG 3 Closed Myocardium TMPG 0/1/2 Open Myocardium Closed Myocardium p=NS Rise in Tn I Post PCI p=0.04 p=NS p=NS p=NS p=0.009 p=NS p=NS Rise in CKMB Post PCI

10 Univariate Correlates of Post-PCI TMPG 3 Variable Univariate p – value Pre-PCI TMPG 3 p<0.0001 TMPG 3 = 75.1% vs TMPG 0,1,2 = 31.9% Culprit artery location p<0.0001 LAD=59.1%; LCx=66.7%;RCA=41.6% Prior Statin Use p=0.013 + hx 50.3% vs – hx 59.5% History of Smoking p=0.036 + hx 50.5% vs – hx 58.5% History of Dyslipidemia req. Tx p=0.04 + hx 52.3% vs – hx 59.9% Systolic BP on Admission p=0.04 TMPG 3 = 141 vs TMPG 0,1,2 =139 Eptifibatide vs Bivalirudin p=0.074 Epti = 57.9% vs Bival = 50.9% Clopidogrel Tx > 6 hours p=NS Non-significant covariates: age (p=0.49); gender (p=0.42); race (p=0.51); prior CHF (p=0.67); prior MI (p=0.69); history of angina (p=0.46); prior stenosis > 50% (p=0.98); prior PCI (p=0.26); history of CABG (p=0.35); known EF 1.0 mm (p=0.75); systolic BP at randomization (p=0.64); diastolic BP (p=0.27); heart rate (p=0.92); weight (p=0.83); prior ASA use (p=0.95); prior beta blocker use (p=0.70); prior ACE use (p=0.93); prior Ca channel blocker use (p=0.37); prior ARB (p=0.91); prior nitrates (p=0.50); pre-PCI TIMI Flow Grade (p=0.84).

11 Multivariate Correlates of Post-PCI TMPG 3 Variable Multivariate p – value Pre-PCI TMPG 3 p<0.001 OR = 6.18 Eptifibatide vs Bivalirudin p=0.042 OR =0.67 times as likely to have TMPG3 with Bivalirudin Prior Statin Use p=0.016 OR= 0.55 History of Smoking p=0.024 OR = 0.64 Systolic BP on Admission p=0.081 OR = 1.006 per 1 unit mm Hg rise Troponin I ≥0.1 ng/ml at baseline p=0.099 OR = 0.73 Clopidogrel tx > 6 hours p=0.14 History of Dyslipidemia p=0.56 Culprit artery location Compared to LAD OR for LCx = 1.74 (p=0.025); OR for RCA = 0.99 (p=0.98); OR for diagonal / ramus = 2.93 (p=0.023)

12 Gray per sec 7.30 + 8.13 3.97 + 2.46 P=0.05 N=27 N=18 Rate of Increase in DSA Brightness (Gray /sec) Rate of Increase in DSA Brightness (Gray /sec) ESPRITESPRIT Heparin Heparin + Eptifibatide Gibson CM et al, AJC 2001;87(11):1293-5. p = 0.030 Index of Absolute Number of 2b3a Receptors Unoccupied 51.2  24.8K Median 54.0K 51.2  24.8K Median 54.0K Post PCI TMPG 2/3 Post PCI TMPG 0/1 79.6 + 58.4K Median 67.8K 79.6 + 58.4K Median 67.8K n=26 n=21 Count (in thousands) INTEGRITIINTEGRITI Gibson CM et al, Circulation. 2004;110:679-684. N = 253 % TMPG 3 p = 0.018 “Upstream” Duration (> median) “Upstream” Duration (> median) Gibson. Am J Cardiol. 2004; 94:492-4 Prior Studies Linking GP IIbIIIa Inhibition and Improved Myocardial Perfusion Longer / Earlier Upstream GPIIbIIIa Inhibition Improves Rate of TMPG3 TACTICSTACTICS

13 GP IIbIIIa Inhibition was Associated with a More Rapid Rate of Rise in Myocardial Contrast ECHO (MCE) Intensity Following Reperfusion in Animal Model Kunichika, … Demaria A et al, J Am Coll Cardiol 2004;43:276–83 Prior Studies Linking GP IIbIIIa Inhibition and Improved Myocardial Perfusion

14 PROTECT: What Have We Learned Lesson 5: Abnormal myocardial perfusion post-PCI is related to ischemia post-PCI, and Eptifibatide significantly reduces the duration of ischemia compared to Bivalirudin when it does occur

15 Association of Post PCI TMPG 3 with Holter Findings % Ischemia TMPG 0,1,2n=327 TMPG 3n=411 Duration (min) p=0.034 p=0.011 TMPG 0,1,2 TMPG 3

16 CAPTURE & PROTECT Trials Holter Substudies Klootwijk, Circulation 1998;98:1358-1364. Total Duration ST Depression Per Patient (min) p=0.10 HeparinAbciximabBivalirudin Integrilin + UFH or Enox P=0.013 CAPTURE PROTECT


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