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Surgical Treatment for Ischemic Heart Failure (STICH) Trial: CABG versus CABG + SVR LORENZO A. MENICANTI Irccs Policlinico San Donato. Core STICH Study Organization. Principal Investigator: Robert H. Jones Co-Principal investigator: Eric Velazquez DCC Principal Investigator: Kerry L. Lee - PowerPoint PPT Presentation
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Surgical Treatment for IschemicSurgical Treatment for IschemicHeart Failure (STICH) Trial:Heart Failure (STICH) Trial:CABG versus CABG + SVRCABG versus CABG + SVR
LORENZO A. MENICANTILORENZO A. MENICANTIIrccs Policlinico San DonatoIrccs Policlinico San Donato
Surgical Treatment for IschemicSurgical Treatment for IschemicHeart Failure (STICH) Trial:Heart Failure (STICH) Trial:CABG versus CABG + SVRCABG versus CABG + SVR
LORENZO A. MENICANTILORENZO A. MENICANTIIrccs Policlinico San DonatoIrccs Policlinico San Donato
Core STICH Study OrganizationCore STICH Study Organization
Principal Investigator: Robert H. JonesPrincipal Investigator: Robert H. Jones
Co-Principal investigator: Eric VelazquezCo-Principal investigator: Eric Velazquez
DCC Principal Investigator: Kerry L. LeeDCC Principal Investigator: Kerry L. Lee
Study Chair: Jean L. RouleauStudy Chair: Jean L. Rouleau
Executive Committee: Robert H. Jones, Eric Velazquez, Kerry Executive Committee: Robert H. Jones, Eric Velazquez, Kerry L. Lee, Jean L. Rouleau, Patrice Desvigne-Nickens, George L. Lee, Jean L. Rouleau, Patrice Desvigne-Nickens, George Sopko, Christopher O’Connor, Robert Michler, Jae OhSopko, Christopher O’Connor, Robert Michler, Jae Oh
DSMB chair: Sidney GoldsteinDSMB chair: Sidney Goldstein
Policy and Publication Committee chair: James HillPolicy and Publication Committee chair: James Hill
Clinical Endpoints Committee chair: Peter CarsonClinical Endpoints Committee chair: Peter Carson
Hypothesis 2 Enrollment by CountryHypothesis 2 Enrollment by Country
1000 patients
96 clinical sites
23 countries
1231 days
1000 patients
96 clinical sites
23 countries
1231 days
Hypothesis 2Hypothesis 2 Surgical ventricular reconstruction (SVR) combined with Surgical ventricular reconstruction (SVR) combined with
CABG and evidence-based medical therapy (MED) CABG and evidence-based medical therapy (MED) decreases death or cardiac hospitalization compared to decreases death or cardiac hospitalization compared to CABG and MED without SVR.CABG and MED without SVR.
90% power for 20% reduction assuming 90% power for 20% reduction assuming ≥45% 3-year event ≥45% 3-year event rate allowing for 20% treatment crossovers.rate allowing for 20% treatment crossovers.
7% of CABG and 9% of CABG + SVR patients did not 7% of CABG and 9% of CABG + SVR patients did not receive assigned operation.receive assigned operation.
Follow-up 99% complete over median of 48 months.Follow-up 99% complete over median of 48 months.
All outcomes reported by operation assigned by All outcomes reported by operation assigned by randomization.randomization.
Conduct of operation reported by procedure receivedConduct of operation reported by procedure received ..
Baseline Clinical CharacteristicsBaseline Clinical Characteristics
Characteristic CABGN = 499
CABG + SVRN = 501
Age, median 25Age, median 25thth, 75, 75thth, years, years 62 (54, 66)62 (54, 66) 62 (56, 69)62 (56, 69)
FemaleFemale 78 (16%)78 (16%) 69 (14%)69 (14%)
WhiteWhite 90%90% 92%92%
DiabetesDiabetes 35%35% 34%34%
Creatinine, >0.5 mg/dLCreatinine, >0.5 mg/dL 8%8% 9%9%
Prior stroke 6% 6%
Mitral Regurgitation by Treatment in 1,000 Mitral Regurgitation by Treatment in 1,000 Hypothesis 2 PatientsHypothesis 2 Patients
Mitral Regurgitation Severity
CABGN = 499
CABG + SVRN = 501
None or trace 173 (35%) 190 (38%)
Mild (≤2+) 233 (47%) 216 (44%)
Moderate (3+) 72 (15%) 70 (14%)
Severe (4+) 16 (3%) 20 (4%)
Not assessed 5 (4%) 5 (3%)
18%18%18%18%
Site Reported Left Ventricular Function for Site Reported Left Ventricular Function for 1,000 Hypothesis 2 Patients by Treatment1,000 Hypothesis 2 Patients by Treatment
LV Function CABGN = 499
CABG + SVRN = 501
Site Qualifying Study
Echocardiogram (%) 66% 63%
Contrast ventriculogram 13% 18%
CMR 11% 9%
Gated SPECT 10% 10%
LVEF, median (25th, 75th) .28 (.23, .31) .28 (.24, .31)
ESVI, median (25th, 75th), mL/m2 82 (65, 102) 82 (66, 105)
% anterior wall with akinesia/dyskinesia, median (25th, 75th) 56 (40, 60) 50 (40, 60)
Coronary Anatomy by Treatment for Coronary Anatomy by Treatment for 1,000 Hypothesis 2 Patients1,000 Hypothesis 2 Patients
Major Coronary Major Coronary Arteries with Arteries with
StenosisStenosis
% Stenosis% Stenosis CABGCABGN = 499N = 499
CABG + SVRCABG + SVRN = 501N = 501
OneOne ≥≥50%50% 7%7% 10%10%
LM stenosisLM stenosis 50-74%50-74% 14%14% 12%12%
OneOne ≥≥ 75%75% 17%17% 20%20%
TwoTwo ≥≥ 75%75% 41%41% 42%42%
ThreeThree ≥≥ 75%75% 41%41% 36%36%
Proximal LADProximal LAD ≥≥ 75%75% 78%78% 74%74%
LM stenosisLM stenosis ≥≥ 75%75% 6%6% 7%7%
Duke coronary Duke coronary disease index*disease index*
MedianMedian(25(25thth, 75, 75thth)) 65 (43, 91)65 (43, 91) 65 (39, 91)65 (39, 91)
* 0 = coronary angiogram shows no coronary disease, 100 = * 0 = coronary angiogram shows no coronary disease, 100 = ≥95% LM stenosis≥95% LM stenosis* 0 = coronary angiogram shows no coronary disease, 100 = * 0 = coronary angiogram shows no coronary disease, 100 = ≥95% LM stenosis≥95% LM stenosis
Medication at BaselineMedication at Baseline
Medication CABGN = 499
CABG + SVRN = 501
Beta blockerBeta blocker 85%85% 87%87%
ACE inhibitor or angiotensin ACE inhibitor or angiotensin receptor blockerreceptor blocker
87%87% 89%89%
ACE inhibitorACE inhibitor 80%80% 82%82%
DigoxinDigoxin 17%17% 14%14%
DiureticDiuretic 69%69% 66%66%
AspirinAspirin 77%77% 77%77%
Aspirin or warfarinAspirin or warfarin 81%81% 83%83%
StatinStatin 79%79% 75%75%
Operative Conduct by Operation Received Operative Conduct by Operation Received in 979 Hypothesis 2 Patientsin 979 Hypothesis 2 Patients
VariableVariable CABGCABGN = 490N = 490
CABG + SVRCABG + SVRN = 489N = 489
PP
Status at Operation
Elective operation 84% 83% 0.54
Urgent 13% 13%
Emergency 3% 4%
Bypass Grafts 0.34
1 or more arterial grafts 93% 89%
2 or less total grafts 27% 30%
3 or more total grafts 73% 70%
Mitral surgery 17% 19% 0.50
SVR patch 59%
Efficiency of Operative Care Efficiency of Operative Care in 979 Hypothesis 2 Patientsin 979 Hypothesis 2 Patients
Duration of OperationDuration of Operation CABGCABGN = 490N = 490
CABG + SVRCABG + SVRN = 489N = 489
PP
Total time in operating room (median, 25th, 75th), hours
4.9 (4.1, 6.0) 5.5 (4.7, 6.6) <0.001
Cardiopulmonary bypass time(median, 25th, 75th), minutes
99 (73, 125) 124 (99, 158) <0.001
Aortic occlusion (median, 25th, 75th), minutes
62 (45, 84) 80 (62, 106) <0.001
Requirements for Postoperative Care
Endotracheal intubation (median, 25th, 75th), hours
15.1 (10.9, 22.1) 16.6 (12.0, 25.2) 0.002
Acute care (median, 25th, 75th), hours
49.8 (28.8, 95.5) 69.5 (42, 137) <0.001
Hospitalization >30 days 22 (5%) 31 (6%) 0.20
Baseline 4 Months0
20
40
60
80
CABG(N = 212)
Baseline 4 MonthsCABG+SVR
(N = 161)
Baseline and Four Month End-Systolic Volume Baseline and Four Month End-Systolic Volume Index (ESVI) in 373 Hypothesis 2 Patients With Index (ESVI) in 373 Hypothesis 2 Patients With Quantitative Echocardiogram at Both IntervalsQuantitative Echocardiogram at Both Intervals
ESVI 82 ml/m2 77 ml/m2 83 ml/m2 67 ml/m2
P<0.001P<0.001P<0.001P<0.001
Baseline(N = 499)
LatestFollow-up(N = 435)
0
100
200
300
400
500
CABGCCS Angina Class
Baseline(N = 501)
LatestFollow-up(N = 428)
CABG+SVRCCS Angina Class
Canadian Cardiovascular Society Angina Class in Canadian Cardiovascular Society Angina Class in Hypothesis 2 Patients at Baseline and Latest Follow-upHypothesis 2 Patients at Baseline and Latest Follow-up
Patients
No Angina121
Class I-II130
Class III-IV248
No Angina339
Class I-II88 Class III-IV
8
No Angina128
Class I-II129
Class III-IV244
No Angina339
Class I-II83 Class III-IV
6
Angina symptoms improved by an average of 1.7 classes Angina symptoms improved by an average of 1.7 classes in both cohorts (P=0.84).in both cohorts (P=0.84).Angina symptoms improved by an average of 1.7 classes Angina symptoms improved by an average of 1.7 classes in both cohorts (P=0.84).in both cohorts (P=0.84).
Baseline(N = 499)
LatestFollow-up(N = 436)
0
100
200
300
400
500
CABGNYHA HF Class
Baseline(N = 501)
LatestFollow-up(N = 435)
CABG+SVRNYHA HF Class
New York Heart Association Heart Failure Class in New York Heart Association Heart Failure Class in Hypothesis 2 Patients at Baseline and Latest Follow-upHypothesis 2 Patients at Baseline and Latest Follow-up
Patients
Class I 36
Class II222
Class III-IV241
Class I165
Class II190
Class III-IV80
Class I 50
Class II207
Class III-IV244
Class I179
Class II190
Class III-IV80
Baseline(N = 499)
LatestFollow-up(N = 435)
Baseline(N = 501)
LatestFollow-up(N = 429)
CABGNYHA HF Class
CABG+SVRNYHA HF Class
Baseline and Four Month 6-Minute Walk in 693 Baseline and Four Month 6-Minute Walk in 693 Hypothesis 2 Patients with Baseline AssessmentHypothesis 2 Patients with Baseline Assessment
Patients
30-Day Mortality30-Day Mortality
OutcomeOutcome CABGCABGN = 499N = 499
CABG + SVRCABG + SVRN = 501N = 501
PP
Death Within 30 Days After Randomization
All patients by intention to treat
22/499 (4.4%) 30/501 (6.0%) 0.26
Death During or Within 30 Days of Operation
Operated patients by intention to treat
25/490 (5.1%) 26/489 (5.3%) 0.88
Operated patients by operation received
23/498 (4.6%) 28/481 (5.8%) 0.40
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0 1 2 3 4 5
Eve
nt R
ate
Years from Randomization
CABG
499501
319319
270275
220216
9911
2323
CABGCABG+SVR
No. at Risk
Death or Cardiac Hospitalization Death or Cardiac Hospitalization Kaplan-Meier Estimates of Primary Endpoint Kaplan-Meier Estimates of Primary Endpoint
292 events
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0 1 2 3 4 5
Eve
nt R
ate
Years from Randomization
CABG
CABG+SVR
HR 0.99 (95% CI: 0.84, 1.17), P=0.90
499501
319319
270275
220216
9911
2323
CABGCABG+SVR
No. at Risk
Death or Cardiac HospitalizationDeath or Cardiac Hospitalization Kaplan-Meier Estimates of Primary Endpoint Kaplan-Meier Estimates of Primary Endpoint
292 events
289 events
Mortality (All-Cause)Mortality (All-Cause) Kaplan-Meier Estimates Kaplan-Meier Estimates
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0 1 2 3 4 5
Mor
talit
y R
ate
Years from Randomization
CABG
499501
434429
417404
363352
201193
5953
CABGCABG+SVR
No. at Risk
141 deaths
Mortality (All-Cause)Mortality (All-Cause) Kaplan-Meier Estimates Kaplan-Meier Estimates
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0 1 2 3 4 5
Mor
talit
y R
ate
Years from Randomization
CABG+SVR
HR 1.00 (95% CI: 0.79, 1.26), P=0.98
499501
434429
417404
363352
201193
5953
CABGCABG+SVR
No. at Risk
141 deaths 138 deaths
CABG
Summary of Outcomes in STICH H2Summary of Outcomes in STICH H2
OutcomesOutcomes CABGCABGN = 499N = 499
CABG + SVRCABG + SVRN = 501N = 501
Hazard RatioHazard Ratio95% CI95% CI
PP
Death or cardiac Death or cardiac hospitalizationhospitalization 292 (59%)292 (59%) 289 (58%)289 (58%) 0.99 (0.84, 1.17)0.99 (0.84, 1.17) 0.900.90
DeathDeath 141 (28%)141 (28%) 138 (28%)138 (28%) 1.00 (0.79, 1.26)1.00 (0.79, 1.26) 0.980.98
Hospitalization Hospitalization (cardiac)(cardiac) 211 (42%)211 (42%) 204 (41%)204 (41%) 0.97 (0.80, 1.18)0.97 (0.80, 1.18) 0.730.73
Hospitalization Hospitalization (all cause)(all cause) 272 (55%)272 (55%) 268 (53%)268 (53%) 0.98 (0.83, 1.16)0.98 (0.83, 1.16) 0.820.82
Acute MIAcute MI 22 (4%)22 (4%) 20 (4%)20 (4%) 1.01 (0.54, 1.87)1.01 (0.54, 1.87) 0.960.96
StrokeStroke 31 (6%)31 (6%) 23 (5%)23 (5%) 0.77 (0.45, 1.32)0.77 (0.45, 1.32) 0.350.35
0.5 1.0 2.0
CABG+SVG Better
CABGBetter
Hazard Plots of Selected Baseline CharacteristicsHazard Plots of Selected Baseline Characteristics
Subgroup N HR (95% CI) P ValueAll Subjects 1000 0.99 (0.84, 1.17)Age 0.48 ≥ 65 391 1.06 (0.83, 1.35) < 65 609 0.94 (0.76, 1.17)Gender 0.60 Male 853 1.01 (0.84, 1.20) Female 147 0.90 (0.58, 1.39)Race 0.44 Minority 124 0.83 (0.51, 1.36) Non-minority 876 1.01 (0.85, 1.20)Current NYHA HF class 0.97 I or II 515 0.99 (0.78, 1.25) III or IV 485 0.99 (0.79, 1.24)
CABG+SVRBetter
CABGBetter
0.5 1.0 2.0
CABG+SVG Better
CABGBetter
Hazard Plots of Selected Baseline Characteristics contHazard Plots of Selected Baseline Characteristics cont
Subgroup N HR (95% CI) P ValueCCS angina class 0.39 ≤ Class II 508 0.92 (0.73, 1.16) Class III or IV 492 1.06 (0.85, 1.34)Baseline diabetes 0.20 Yes 344 1.14 (0.87, 1.50) No 656 0.92 (0.75, 1.12)LVEF (site reported) 0.33 ≤ 28 534 1.07 (0.86, 1.31) > 28 466 0.90 (0.70, 1.17)# of diseased vessels ≥ 50% 0.21 1 or 2 362 0.87 (0.65, 1.13) 3 638 1.07 (0.87, 1.31)Left main ≥ 50% or proximal LAD ≥ 75% 0.53 No 179 0.89 (0.61, 1.30) Yes 821 1.02 (0.85, 1.22)
CABG+SVRBetter
CABGBetter
0.5 1.0 2.0
CABG+SVG Better
CABGBetter
Hazard Plots of Selected Baseline Characteristics contHazard Plots of Selected Baseline Characteristics cont
Subgroup N HR (95% CI) P ValueMitral regurgitation 0.44 None or trace 363 0.89 (0.68, 1.17) Mild (≤ 2+) 449 1.12 (0.88, 1.43) Mod. or severe 178 0.94 (0.65, 1.36)Stratum 0.44 B 141 1.15 (0.76, 1.76) C 859 0.96 (0.81, 1.15)Region 0.41 Poland 288 1.02 (0.76, 1.37) USA 200 1.10 (0.79, 1.54) Canada 154 0.77 (0.50, 1.18) West Europe 164 0.80 (0.53, 1.22) Other 194 1.24 (0.81, 1.91)
CABG+SVRBetter
CABGBetter
Jones R et al. N Engl J Med 2009;10.1056/NEJMoa0900559Jones R et al. N Engl J Med 2009;10.1056/NEJMoa0900559
ConclusionsConclusions
The STICH trial definitively shows adding SVR to CABG The STICH trial definitively shows adding SVR to CABG provides no clinical benefit beyond that of CABG alone in provides no clinical benefit beyond that of CABG alone in the study population.the study population.
Both operative strategies provided similar short- and long-Both operative strategies provided similar short- and long-term relief of angina and HF and improvement in 6-minute term relief of angina and HF and improvement in 6-minute walk test performance.walk test performance.
SVR added to CABG decreased LV size significantly more SVR added to CABG decreased LV size significantly more than CABG alone and confirms the anatomic change than CABG alone and confirms the anatomic change reported in prior SVR studies.reported in prior SVR studies.
Further analyses of STICH Hypothesis 2 data may identify Further analyses of STICH Hypothesis 2 data may identify patient characteristics associated with benefit or harm from patient characteristics associated with benefit or harm from adding SVR to CABG.adding SVR to CABG.
MOTIVI DI DUBBIO
PUR AUMENTANDO LA COMPLESSITA’ DELLA PRUCEDURA CHIRURGICA LA MORTALITA’ NON CAMBIA
NONOSTANTE LA DIMINUZIONE DEL VOLUME DEL 20% NON VI E’ NESSUN BENEFICIO SULLA SOPRAVVIVENZA
SONO STATI CAMBIATI I CRITERI DI ARRUOLAMENTO DURANTE LO STUDIO, NELLA VERSIONE 2003 SCOMPARE IL SINTOMO SCOMPENSO
IL VOLUME NON E’ PIU’ UN CRITERIO DI ARRUOLAMENTO E PERMANE SOLAMENTE LA FE < 35%
LO STUDIO PERDE LA SUA CARATTERISTICA PRINCIPALE DI STUDIO SU MALATI SCOMPENSATI PER DIVENIRE UNO STUDIO SU PAZIENTI ISCHEMICI
LIMITI DI UNO STUDIO RANDOMIZZATO SU UNA PRATICA CHIRURGICA BEN CONOSCIUTA CON RISULTATI NOTI
NON ETICA LA RANDOMIZZAZIONE IN PAZIENTI IN CUI IL BENEFICIO ERA EVIDENTE
OFFRIRE IL MEGLIO DELLA TERAPIA MEDICA E CHIRURGICA CONOSCIUTA E DISPONIBILE IN BASE AL CONCETTO DI EQUIPOSE DI CIASUN CENTRO.
RANDOMIZZAZIONE COINVOLGE MENO DEL 20% DEI PAZIENTI ELIGIBILI.
80% DEI PAZIENTI ELIGIBILI è STATO SOTTOPOSTO A SVR PER EVIDENZA DELLA SUPERIORITà DELLA PROCEDURA
L’INTERVENTO DI SVR è INDICATO COME PUBBLICATO OVUNQUE IN PRESENZA DI SINTOMI DI SCOMPENSO DETERMINATO DA UN INGRANDIMENTO DELLA CAVITà SINISTRA DOPO INFARTO TRANSMURALE,IN PRESENZA QUINDI DI TESSUTO CICATRIZIALE, NON QUANDO VI SIA TESSUTO VITALE.
LA TECNICA CHIRURGICA INFLUENZA PESANTEMENTE IL RISULTATO
SE LA RIDUZIONE VOLUMETRICA è TROPPO SPINTA VI è IL RISCHIO DI AVERE UNA DISFUNZIONE DIASTOLICA IMPORTANTE.
SE LA RIDUZIONE è LIMITATA NON VI è ALCUN BENEFICIO.
VIENE RIPORTATA UNA RIDUZIONE VOLUMETRICA DEL 5% NEI PAZIENTI SOTTOPOSTI A CABG E DEL 20% IN QUELLI OPERATI SVR, SI PUò ARGUIRE CHE L’INTERVENTO DI SVR DIMINUISCE IL VOLUME DEL 15%
E’ SUFFICIENTE UNA RIDUZIONE DEL 20% DEL VOLUME ?
GLI STUDI OSSERVAZIONALI PUBBLICATI RIPORTANO UNA DIMINUZIONE DEL VOLUME TRA IL 30% ED IL 50%
L’INTERVENTO DI SVR NON è UN INTERVENTO COSMETICO
Average % ESV reduction following CABG plus SVR
-60
-50
-40
-30
-20
-10
0Ath
anas
uleas
(200
4)
Cirillo
(220
4)
Men
icant
i(2007
)
Aguiar
Ribe
rio (2
006)
Yamag
uchi (
2006
)
O`Neil
l (20
06)
Conte (
2004
)
STICH (2
009
%
LA VARIABILITà GEOGRAFICA DEI RISULTATI SEMBRA CONFERMARE I DUBBI SULLA OMOGENEITà DEL TRATTAMENTO CHIRURGICO.
MENO DEL 50% DEI PAZIENTI ERANO IN CLASSE III E IV
13% DEI PAZIENTI NON AVEVANO STORIA DI INFARTO MIOCARDICO ACUTO
25% DEI PAZIENTI NON PRESENTAVA LESIONE CRITICA DELA IVA
LO STICH TRIAL RAPPRESENTA UN VASO DI PANDORA SE I DATI PUBBLICATI CON UNA CERTA FRETTA SARANNO ANALIZZATI APPROFONDITAMENTE PROBABILMENTE DARANNO ALCUNE RISPOSTE CHE SI CERCAVANO, SE ALTRIMENTI CI SI FERMERà SOLAMENTE AGLI OUTCOME PRIMARI ALLORA SARà UN TRIAL NEUTRO CHE NON CONTRIBUISCE ALLA COMPRENSIONE DEL FENOMENO SCOMPENSO.
0
50
100
150
200
250
Baseline Follow-Up
Class 1
Class 2
Class 3-4
N=213 N=170
120
84
9
18
75
75
NYHA Functional Class changes following CABG+SVRSan Donato Experience
STICH NEJM 2009Baseline EF</=35%
0
20
40
60
80
100
Baseline 4 months
83 ml/m2
67ml/m2
ESVI Changes following CABG + SVR
STICH Patients (n=161) San Donato Patients (n=110)
0
20
40
60
80
100
Baseline 8 months
93ml/m2
60 ml/m2
(NEJM March 2009) (Unpublished data)
-19% - 35%
Baseline EF </=35%
0
20
40
60
80
100
120
140
Baseline 8 months
EDVI
126 ml/m2
93 ml/m2
- 26%
0
5
10
15
20
25
30
35
40
EF
Baseline 8 months
28%36%
0.0001
0.001+22%
Baseline EF </=35%
ESVI Changes following CABG + SVR (San Donato Experience)
0
20
40
60
80
100
Baseline Follow-Up
% pts
0
20
40
60
80
100
Baseline Follow-Up
III-IV
II
I
III-IV
II
I
I
I
II
IIIII-IV
III-IV
% pts
NYHA functional class changes (% distribution)
STICH
San Donato
Baseline EF</=35%
0
10
20
30
40
50
60
70
80
90
100
Baseline Follow-Up
Class 1
Class 2
Class 3-4
49%
41%
10%
14%
44%
42%
0
10
20
30
40
50
60
70
80
90
100
Baseline Follow-Up
Class 1
Class 2
Class 3-4
56%
39%
5%
10%
45%
45%
STICH
Milano
Pre and Post-operative NYHA functional class distribution
Baseline EF</=35%
-40
-30
-20
-10
0
10
20
30
EDVI ESVI SVI EF
Hemodynamic Changes following CABG plus SVR in STICH-like patients (Baseline vs FUP)
Average FUP= 1 year
-26%-35%
+9%
+22%
N=110