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STEMI - ST Elevation Myocardial InfarctionNCT03138473

Impact of Residual Syntax Score and Syntax Revascularization Index on Outcomes of ACS Patients With Multi-Vessel Disease

An observational study of STEMI - ST Elevation Myocardial Infarction and Multi Vessel Coronary Artery Disease, run by Assiut University at 1 site in Egypt.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The investigators want to assess the use of the residual SYNTAX score and the SYNTAX Revascularization Index as predictors for in-hospital outcomes and mid-term (6 months to 1 year) outcomes in patients with multi-vessel disease (MVD) who undergo PCI in the setting of STEMI or NSTEACS. Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
Residual SYNTAX Score and SYNTAX Revascularization Index
How many people
149 participants
Where
1 siteEgypt
Study dates
1 Jul 2018to 30 Jun 2021
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: All consecutive patients admitted to the Assiut University Hospitals Department of Cardiology will be collected over one year starting 1st of July 2017 till 30th of June 2018. Considering the primary end-point of the study (MACE rate 28%) (Khan et al, 2016), the estimated sample size of the population, based on power of 85%, and alpha= 5%, is calculated to be = 108 patients.

Who may be able to join

  • All ACS (STEMI and NSTEACS) patients undergoing PCI in the setting of MVD.

Who cannot join

  • Patients receiving fibrinolytic therapy.
  • Patients with cardiogenic shock
  • Post-CABG patients
  • Patients with severe renal impairment

Trial locations and contacts

1 site in 1 country.

Egypt1 site

  • Assiut University Heart Hospital

    Asyut, 71515

Other trials in Egypt

About this study

Official title: Impact of Residual Syntax Score and Syntax Revascularization Index on Outcomes of Acute Coronary Syndrome Patients With Multi-Vessel Disease

The investigators want to assess the use of the residual SYNTAX score and the SYNTAX Revascularization Index as predictors for in-hospital outcomes and mid-term (6 months to 1 year) outcomes in patients with multi-vessel disease (MVD) who undergo PCI in the setting of STEMI or NSTEACS. Both values will be calculated in a number of patients over one year, and the relationship between both values and patient outcomes will be evaluated.

Read the detailed description

Significant non-culprit coronary stenosis is noted in 40-70% of patients with ST-elevation Myocardial Infarction (STEMI) undergoing primary percutaneous coronary intervention (PPCI). Presence of multivessel disease (MVD) has been associated with poorer clinical outcomes. MVD in STEMI may confer an increased risk of recurrent ischemia and mortality. However, the impact of MVD on prognosis in STEMI may vary depending on the characteristics of coronary artery disease (CAD) present.

Current guidelines recommend that only the infarct-related artery should be treated. However, RCTs have suggested that a strategy of multivessel PCI, either at the time of primary PCI or as a planned, staged procedure, may be beneficial and safe in selected patients with STEMI. On the basis of these findings, the prior Class III (Harm) recommendation with regard to multivessel primary PCI in hemodynamically stable patients with STEMI has been upgraded and modified to a Class IIb recommendation to include consideration of multivessel PCI, either at the time of primary PCI or as a planned, staged procedure.

Early invasive treatment in high-risk patients with non-ST-elevation acute coronary syndrome (NSTEACS) has been shown to improve their prognosis in terms of cardiovascular death and reinfarction. The prevalence of multivessel disease in these patients stands at about 50% and experts agree that performing complete revascularization is beneficial in such patients.

Accordingly, the SYNergy between PCI with TAXus and cardiac surgery (SYNTAX) score has been developed in 2005 in Erasmus Medical Center in the Netherlands to evaluate the severity of coronary artery disease in the settings of left main or MVD.

The investigators have observed a growing interest in residual disease burden after PCI. The residual SYNTAX score (rSS), described by Genereux and colleagues is a strong prognostic factor of coronary events and all-cause death in patients who have undergone PCI. This score has subsequently been validated by other groups and been shown to have good prognostic accuracy for adverse ischemic outcomes after PCI.

The SYNTAX Revascularisation Index (SRI), which takes into account the severity and extent of baseline CAD (as assessed by the baseline SYNTAX score [bSS]) and the residual CAD after PCI (as assessed by the rSS) has been used in determining the proportion of CAD that has been treated, and has been shown to have prognostic utility in PCI for MVD.

Here, the investigators want to assess the use of the residual SYNTAX score and the SYNTAX Revascularization Index as predictors for in-hospital outcomes and mid-term (up to two year) outcomes in patients with multi-vessel disease (MVD) who undergo PCI in the setting of STEMI or NSTEACS.

Being tested
Residual SYNTAX Score, SYNTAX Revascularization Index
Keywords
SYNTAX Score, residual SYNTAX score, SYNTAX Revascularization Index
Medical subject headings
ST Elevation Myocardial Infarction, Non-ST Elevated Myocardial Infarction, Acute Coronary Syndrome

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Residual SYNTAX ScoreDiagnostic test

    The baseline SYNTAX score and the residual SYNTAX score (rSS) are calculated by summing up the individual scores for each lesion with a diameter stenosis ≥50% in vessels with a diameter ≥ 1.5 mm in the angiography obtained before and after the procedure. The SYNTAX algorithm of scoring is fully described elsewhere.

    The modified Age, Creatinine, and Ejection Fraction (ACEF) score is calculated based on the age, creatinine clearance (CrCl) and left ventricular ejection fraction (LVEF), using the formula age/LVEF +1 point for every 10 ml/min/1.73 m2 reduction of CrCl below 60 ml/min/1.73 m2 (1 point for CrCl between 59 and 50, 2 points for CrCl between 49 and 40 and 3 points for CrCl between 39 and 30 ml/min/1.73 m2). The CrCl is calculated via the Cockroft-Gault equation using age, gender weight and serum creatinine before PCI. The baseline SYNTAX score was then multiplied by the modified ACEF score to obtain the baseline clinical SYNTAX score.

  • SYNTAX Revascularization IndexDiagnostic test

    The SYNTAX Revascularization Index (SRI), representing the proportion of CAD burden treated by PCI, was calculated using the following formula: SRI= (1-[rSS/bSS]) ×100.

Study groups in NCT03138473
Study groupRoleWhat they receive
Main GroupAcute Coronary Syndrome Patients With Multi-Vessel Disease. The Residual SYNTAX score (rSS) and the SYNTAX Revascularization Index (SRI) will be calculated in this group and its relationship with patient outcomes either in hospital or in 6 months to 1 year follow-up will be evaluated.
Receives: Diagnostic Test: Residual SYNTAX Score; Diagnostic Test: SYNTAX Revascularization Index

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. In-hospital major adverse cardiac events (MACE)

    A composite of cardiac death (including periprocedural), non-fatal myocardial infarction, congestive heart failure, unplanned revascularization including target vessel revascularization (TVR), target lesion revascularization (TLR) and Coronary artery bypass graft (CABG).

    Measured: 2 Years

Secondary outcomes (4)

  1. The individual components of the primary end-point

    Cardiac death (including periprocedural), non-fatal myocardial infarction, congestive heart failure, unplanned revascularization including target vessel revascularization (TVR), target lesion revascularization (TLR) and Coronary artery bypass graft (CABG)

    Measured: 2 Years

  2. Major Bleeding

    ACUITY defined major bleeding (Stone et al, 2004)

    Measured: 2 Years

  3. Acute kidney injury (AKI)

    a 25% relative or 0.5mg/dL (44.2µmol/L) absolute increase in presenting serum creatinine after PPCI.

    Measured: 2 Years

  4. 6 months- 1 year MACE, and its individual components.

    Cardiac death (including periprocedural), non-fatal myocardial infarction, congestive heart failure, unplanned revascularization including target vessel revascularization (TVR), target lesion revascularization (TLR) and Coronary artery bypass graft (CABG),and a composite of these components.

    Measured: 2 Years

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted3 May 2017
  2. Study start1 Jul 2018
  3. Primary completion30 Jun 2021
  4. Study completion30 Jun 2021

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
149 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03138473
Sponsor's protocol ID
17100078
Status last verified
Feb 2022
First submitted
1 May 2017
Last updated
22 Feb 2022
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No: IPD will not be shared with other researchers.

Publications

  • Boden H, Velders MA, van der Hoeven BL, Cannegieter SC, Schalij MJ. In-hospital major bleeding and its clinical relevance in patients with ST elevation myocardial infarction treated with primary percutaneous coronary intervention. Am J Cardiol. 2013 Nov 15;112(10):1533-9. doi: 10.1016/j.amjcard.2013.06.025. Epub 2013 Aug 14.

    PubMed 23953696

  • Claessen BE, Dangas GD, Weisz G, Witzenbichler B, Guagliumi G, Mockel M, Brener SJ, Xu K, Henriques JP, Mehran R, Stone GW. Prognostic impact of a chronic total occlusion in a non-infarct-related artery in patients with ST-segment elevation myocardial infarction: 3-year results from the HORIZONS-AMI trial. Eur Heart J. 2012 Mar;33(6):768-75. doi: 10.1093/eurheartj/ehr471. Epub 2012 Jan 12.

    PubMed 22240495

  • Engstrom T, Kelbaek H, Helqvist S, Hofsten DE, Klovgaard L, Holmvang L, Jorgensen E, Pedersen F, Saunamaki K, Clemmensen P, De Backer O, Ravkilde J, Tilsted HH, Villadsen AB, Aaroe J, Jensen SE, Raungaard B, Kober L; DANAMI-3-PRIMULTI Investigators. Complete revascularisation versus treatment of the culprit lesion only in patients with ST-segment elevation myocardial infarction and multivessel disease (DANAMI-3-PRIMULTI): an open-label, randomised controlled trial. Lancet. 2015 Aug 15;386(9994):665-71. doi: 10.1016/s0140-6736(15)60648-1.

    PubMed 26347918

  • Farooq V, Serruys PW, Bourantas CV, Zhang Y, Muramatsu T, Feldman T, Holmes DR, Mack M, Morice MC, Stahle E, Colombo A, de Vries T, Morel MA, Dawkins KD, Kappetein AP, Mohr FW. Quantification of incomplete revascularization and its association with five-year mortality in the synergy between percutaneous coronary intervention with taxus and cardiac surgery (SYNTAX) trial validation of the residual SYNTAX score. Circulation. 2013 Jul 9;128(2):141-51. doi: 10.1161/CIRCULATIONAHA.113.001803. Epub 2013 Jun 13.

    PubMed 23766350

  • Fox KA, Clayton TC, Damman P, Pocock SJ, de Winter RJ, Tijssen JG, Lagerqvist B, Wallentin L; FIR Collaboration. Long-term outcome of a routine versus selective invasive strategy in patients with non-ST-segment elevation acute coronary syndrome a meta-analysis of individual patient data. J Am Coll Cardiol. 2010 Jun 1;55(22):2435-45. doi: 10.1016/j.jacc.2010.03.007. Epub 2010 Mar 30.

    PubMed 20359842

  • Garg S, Sarno G, Garcia-Garcia HM, Girasis C, Wykrzykowska J, Dawkins KD, Serruys PW; ARTS-II Investigators. A new tool for the risk stratification of patients with complex coronary artery disease: the Clinical SYNTAX Score. Circ Cardiovasc Interv. 2010 Aug;3(4):317-26. doi: 10.1161/CIRCINTERVENTIONS.109.914051. Epub 2010 Jul 20.

    PubMed 20647561

  • Genereux P, Campos CM, Yadav M, Palmerini T, Caixeta A, Xu K, Francese DP, Dangas GD, Mehran R, Leon MB, Serruys PW, Stone GW. Reasonable incomplete revascularisation after percutaneous coronary intervention: the SYNTAX Revascularisation Index. EuroIntervention. 2015 Oct;11(6):634-42. doi: 10.4244/EIJY14M10_05.

    PubMed 25308300

  • Genereux P, Palmerini T, Caixeta A, Rosner G, Green P, Dressler O, Xu K, Parise H, Mehran R, Serruys PW, Stone GW. Quantification and impact of untreated coronary artery disease after percutaneous coronary intervention: the residual SYNTAX (Synergy Between PCI with Taxus and Cardiac Surgery) score. J Am Coll Cardiol. 2012 Jun 12;59(24):2165-74. doi: 10.1016/j.jacc.2012.03.010. Epub 2012 Apr 4.

    PubMed 22483327

  • Gershlick AH, Khan JN, Kelly DJ, Greenwood JP, Sasikaran T, Curzen N, Blackman DJ, Dalby M, Fairbrother KL, Banya W, Wang D, Flather M, Hetherington SL, Kelion AD, Talwar S, Gunning M, Hall R, Swanton H, McCann GP. Randomized trial of complete versus lesion-only revascularization in patients undergoing primary percutaneous coronary intervention for STEMI and multivessel disease: the CvLPRIT trial. J Am Coll Cardiol. 2015 Mar 17;65(10):963-72. doi: 10.1016/j.jacc.2014.12.038.

    PubMed 25766941

  • Hoebers LP, Vis MM, Claessen BE, van der Schaaf RJ, Kikkert WJ, Baan J Jr, de Winter RJ, Piek JJ, Tijssen JG, Dangas GD, Henriques JP. The impact of multivessel disease with and without a co-existing chronic total occlusion on short- and long-term mortality in ST-elevation myocardial infarction patients with and without cardiogenic shock. Eur J Heart Fail. 2013 Apr;15(4):425-32. doi: 10.1093/eurjhf/hfs182. Epub 2012 Nov 12.

    PubMed 23148116

  • Khan R, Al-Hawwas M, Hatem R, Azzalini L, Fortier A, Joliecoeur EM, Tanguay JF, Lavoie-L'Allier P, Ly HQ. Prognostic impact of the residual SYNTAX score on in-hospital outcomes in patients undergoing primary percutaneous coronary intervention. Catheter Cardiovasc Interv. 2016 Nov;88(5):740-747. doi: 10.1002/ccd.26413. Epub 2016 Feb 1.

    PubMed 26833916

  • Lee JH, Park HS, Chae SC, Cho Y, Yang DH, Jeong MH, Kim YJ, Kim KS, Hur SH, Seong IW, Hong TJ, Cho MC, Kim CJ, Jun JE, Park WH; Korea Acute Myocardial Infarction Registry Investigators. Predictors of six-month major adverse cardiac events in 30-day survivors after acute myocardial infarction (from the Korea Acute Myocardial Infarction Registry). Am J Cardiol. 2009 Jul 15;104(2):182-9. doi: 10.1016/j.amjcard.2009.03.010.

    PubMed 19576343

  • Levine GN, Bates ER, Blankenship JC, Bailey SR, Bittl JA, Cercek B, Chambers CE, Ellis SG, Guyton RA, Hollenberg SM, Khot UN, Lange RA, Mauri L, Mehran R, Moussa ID, Mukherjee D, Ting HH, O'Gara PT, Kushner FG, Ascheim DD, Brindis RG, Casey DE Jr, Chung MK, de Lemos JA, Diercks DB, Fang JC, Franklin BA, Granger CB, Krumholz HM, Linderbaum JA, Morrow DA, Newby LK, Ornato JP, Ou N, Radford MJ, Tamis-Holland JE, Tommaso CL, Tracy CM, Woo YJ, Zhao DX. 2015 ACC/AHA/SCAI Focused Update on Primary Percutaneous Coronary Intervention for Patients With ST-Elevation Myocardial Infarction: An Update of the 2011 ACCF/AHA/SCAI Guideline for Percutaneous Coronary Intervention and the 2013 ACCF/AHA Guideline for the Management of ST-Elevation Myocardial Infarction. J Am Coll Cardiol. 2016 Mar 15;67(10):1235-1250. doi: 10.1016/j.jacc.2015.10.005. Epub 2015 Oct 21. No abstract available.

    PubMed 26498666

  • Sianos G, Morel MA, Kappetein AP, Morice MC, Colombo A, Dawkins K, van den Brand M, Van Dyck N, Russell ME, Mohr FW, Serruys PW. The SYNTAX Score: an angiographic tool grading the complexity of coronary artery disease. EuroIntervention. 2005 Aug;1(2):219-27. No abstract available.

    PubMed 19758907

  • Task Force on the management of ST-segment elevation acute myocardial infarction of the European Society of Cardiology (ESC); Steg PG, James SK, Atar D, Badano LP, Blomstrom-Lundqvist C, Borger MA, Di Mario C, Dickstein K, Ducrocq G, Fernandez-Aviles F, Gershlick AH, Giannuzzi P, Halvorsen S, Huber K, Juni P, Kastrati A, Knuuti J, Lenzen MJ, Mahaffey KW, Valgimigli M, van 't Hof A, Widimsky P, Zahger D. ESC Guidelines for the management of acute myocardial infarction in patients presenting with ST-segment elevation. Eur Heart J. 2012 Oct;33(20):2569-619. doi: 10.1093/eurheartj/ehs215. Epub 2012 Aug 24. No abstract available.

    PubMed 22922416

Questions about this trial

What is this clinical trial studying?

An observational study of STEMI - ST Elevation Myocardial Infarction and Multi Vessel Coronary Artery Disease, run by Assiut University at 1 site in Egypt.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 22 Feb 2022. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Egypt. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

In-hospital major adverse cardiac events (MACE) (time frame: 2 Years). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03138473, which also lists 19 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 22 Feb 2022.

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