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Recommendations for criteria for STEMI systems of care: A focus on
pharmacoinvasive strategies
Mohammad Zubaid, MB, ChB, FRCPC, FACC
Professor of Medicine, Kuwait University
Chairman, Faculty of Cardiology, KIMS
President, Kuwait Cardiac Society
President, Gulf Heart Association
Head, Division of Cardiology
Mubarak Alkabeer Hospital
Kuwait
8th ECS Congress in collaboration with the ACC Middle East Conference 2017Intercontinental hotel, Dubai – UAE – October 20, 2017
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Distribution of ACS type
Discharge diagnosis
Gulf RACE 2007
(n=8176)
ACS type
39STEMI (%)
32NSTEMI (%)
29UA (%)
Zubaid M. Acta Cardiol 2009;64:439-446
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11/1/2017
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Time to Treatment
The Importance of Time to ReperfusionA Meta-analysis of 50,246 Pts in placebo controlled trials of Lytic
Therapy
Boersma E, et al. Lancet. 1996; 348: 771- 5
The Benefit of Reperfusion therapy for
STEMI is time dependent
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So, it’s all about time
But what is the best approach?
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Pooled analysis of the short-term results from 23 randomized trials comparing primary PCI and lytic therapy in 7739 patients
Stone G. Circulation 2008;118:538-551
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However,
In reality, there remains great deal of difficulty in
implementing a routine primary PCI approach
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Gulf COAST Registry
Gulf loCals with acute cOronAry
Syndrome evenTs Registry
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Reperfusion in eligible patients
Per country
UAE
(n= 129)
Bahrain
(n= 119)
Kuwait
(n=259)
Oman
(n= 315)
40.329.45.80.3Primary PCI (%)
48.957.186.492.1Lysis (%)
10.913.47.77.6Shortfall (%)
Zubaid M. The Open Cardiovascular Medicine Journal 2014; 8: 88-93
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Widimsky P et al. Eur Heart J 2010;31:943-957
Only 55% of all PCI centres offer 24/7 PPCI service
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Door-In to Door-Out Time Among Patients Transferred for Primary PCI in the USA
Arch Intern Med. 2011;171(21):1879-1886
Distribution of median door-in to door-out (DIDO) times for 1034 hospitals
reporting at least 5 patients in 2009
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Mortality in 6209 Danish
Patients With STEMI Treated
With Primary PCI
Terkelsen, C. J. et al. JAMA 2010;304:763-771
Hazards of delayed primary PCI
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Is there an “in between” strategy?
A strategy that combines the benefits of fibrinolysis and PCI
Pharmaco-invasive strategy, a recanalization strategy by fibrinolysis
followed by angiography within 6–24 hours unless rescue intervention is
needed.
This is different from Facilitated PCI which is recanalization by primary PCI
that is facilitated by the routine use of fibrinolysis.
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Results: Primary endpoint
TNK 12.4%
PPCI 14.3%
TNK vs PPCI
Relative Risk 0.86, 95%CI (0.68-1.09)
p=0.24
Dth
/Sh
ock
/CH
F/R
eM
I (%
)
Days since randomization
Armstrong PW, et al., N Engl J Med. 2013 Apr 11;368(15):1379-87
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Single endpoints up to 30 days
Pharmaco-invasive
(N=944)
PPCI
(N=948)
P-value
All cause death
Cardiac death
(43/939) 4.6%
(31/939) 3.3%
(42/946) 4.4%
(32/946) 3.4%
0.88
0.92
Congestive heart failure (57/939) 6.1% (72/943) 7.6% 0.18
Cardiogenic shock (41/939) 4.4% (56/944) 5.9% 0.13
Reinfarction (23/938) 2.5% (21/944) 2.2% 0.74
Armstrong PW, et al., N Engl J Med. 2013 Apr 11;368(15):1379-87
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Stroke rates before and after fibrinolysis dose adjustment
Pharmaco-invasive PPCI P-value
TOTAL POPULATION (N=1892)
Total stroke
fatal stroke
Haemorrhagic stroke
fatal haemorrhagic stroke
15/939 (1.60%)
7/939 (0.75%)
9/939 (0.96%)
6/939 (0.64%)
5/946 (0.53%)
4/946 (0.42%)
2/946 (0.21%)
2/946 (0.21%)
0.03
0.39
0.04
0.18
POST AMENDMENT POPULATION (N=1503)
Total stroke
fatal stroke
Haemorrhagic stroke
fatal haemorrhagic stroke
9/747 (1.20%)
3/747 (0.40%)
4/747 (0.54%)
2/747 (0.27%)
5/756 (0.66%)
4/756 (0.53%)
2/756 (0.26%)
2/756 (0.26%)
0.30
0.999
0.45
0.999Armstrong PW, et al., N Engl J Med. 2013 Apr 11;368(15):1379-87
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REPERFUSE Kuwait
Started 11/11/2014
Focused observational registry that examines patients who receive reperfusion therapy across Kuwait
The main objective is to examine the efficiency of delivering reperfusion and patients’ outcomes
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REPERFUSE Kuwait
(n=1,237)Variable
53.23 ± 10.01Age (mean)
1153 (93.2)Male, n (%)
406 (32.8)DM, n (%)
611 (49.4)Smoking (Current/Recent) n (%)
REPERFUSE KUWAIT
Baseline Characteristics
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REPERFUSE KUWAIT
Distribution of patients according to Age Category
n=1,237
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REPERFUSE KUWAIT
Distribution of patients according to Reperfusion Strategy
n=1,237
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REPERFUSE KUWAITDoor to Balloon time according to hospital presentation in
Primary PCI patients
n=633P <0.001
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Effectiveness
Comparison of Mortality
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REPERFUSE KUWAITInhospital mortality according to Reperfusion Strategy
PPCI vs. Lysis p=0.008
Pharmacoinvasive vs. Lysis p=0.116
PPCI vs. Pharmacoinvasive p=0.347
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REPERFUSE KUWAIT
Symptom onset to Door time
n=1,219
112 (60,196)Symptom onset to hospital arrival (Median, IQR)
195 (16)Utilization of EMS (%)
889 (72.93)Symptom onset to hospital arrival ≤3 hours (%)
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REPERFUSE KUWAITInhospital mortality according to chest pain duration in
PPCI and pharmacoinvasive groups
Pharmacoinvasive: ≤3 hrs. vs. > 3 hrs. p=0.185
PPCI: ≤3 hrs. vs. > 3 hrs. p=0.054
p=0.332
p=0.675
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11 (1.7%)
11 (2.1%)
0
Onsite Cath vs. Transfer p=0.226
REPERFUSE KUWAITInhospital Mortality according to hospital presentation in primary PCI Patients
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Transfusion
Stroke
Safety
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REPERFUSE KUWAITBlood Transfusion According to Reperfusion Strategy
PPCI vs. Pharmacoinvasive p=0.001
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REPERFUSE KUWAITOutcomes during hospital stay (Stroke)
Total strokes= 6 (0.5%)
2 (0.2%)
4 (0.3%)
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REPERFUSE KUWAITTypes of Stroke According to Reperfusion Strategy (inhospital)
2 (0.3%)
1 (0.3%) 1 (0.5%)
2 (1%)
0.00 0.00
Total strokes= 6 (0.5%)
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REPERFUSE KUWAITFollow up Status (n=1,237)
Yes
12 month follow up done 1176 (95.06 %)
Type of follow up
Lost to follow up 200 (16.7 %)
Patient visit 473 (39.6 %)
Phone call 521 (43.6 %)
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REPERFUSE KUWAIT
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REPERFUSE KUWAIT1-year Mortality Among 1,037 (85 %) with full follow up data
According to Reperfusion strategy
PPCI vs. Lysis p=0.002
Pharmacoinvasive vs. Lysis p=0.014
PPCI vs. Pharmacoinvasive p=0.699
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17 (3.1%)
16 (3.5%)
1 (1.2%)
REPERFUSE KUWAIT1-year Mortality Among PPCI patients with full follow up data
According to Patient Presentation
Onsite Cath vs. Transfer p=0.494
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REPERFUSE KUWAIT
Inhospital mortality and MACE in Primary PCI vs Pharmacoinvasive strategy
Event PPCI (n=646) PI (n=392) Odds Ratio (95% Confidence Interval)
number of patients (%)
Composite
Mortality
Major Bleeding
Stroke
In-H
os
pit
al
1.13 (0.52, 2.48)
1.51 (0.64, 3.59)
0.27 (0.03, 2.27)
0.84 (0.07, 9.32)
16 (2.5) 11 (2.8)
11 (1.7) 10 (2.6)
6 (0.9) 1 (0.3)
2 (0.3) 1 (0.3)
10.0 0.10PPCI better PI better
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REPERFUSE KUWAIT
One year mortality and MACE in Primary PCI vs Pharmacoinvasive strategy
10.0 0.10PPCI better PI better
Composite
Mortality
Major Bleeding
Stroke
On
e Y
ea
r
0.80 ( 0.42, 1.55)
1.15 (0.54, 2.44)
0.16 ( 0.02, 1.25)
0.81 (0.15, 4.44)
28/550 (5.1) 14/339 (4.1)
17/550 (3.1) 12/339 (3.5)
10/550 (1.8) 1/339 (0.3)
4/550 (0.7) 2/339 (0.6)
Event PPCI (n=646) PI (n=392) Odds Ratio (95% Confidence Interval)
number of patients (%)
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Conclusions
Primary PCI is superior to fibrinolytic therapy when performed early.
For many reasons, primary PCI can’t be adopted for a large segment of STEMI patients.
In Kuwait, over an entire year, country-wide, we tested the different reperfusion strategies that cardiologists practiced.
Pharmaco-invasive strategy proved efficient, effective and safe.