Impact of Residual Syntax Score and Syntax Revascularization Index on Outcomes of ACS Patients With Multi-Vessel Disease
NCT ID: NCT03138473
Last Updated: 2022-02-22
Study Results
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Basic Information
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COMPLETED
149 participants
OBSERVATIONAL
2018-07-01
2021-06-30
Brief Summary
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Detailed Description
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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.
Conditions
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Study Design
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COHORT
PROSPECTIVE
Study Groups
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Main Group
Acute 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.
Residual SYNTAX Score
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 Index
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.
Interventions
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Residual SYNTAX Score
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 Index
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.
Eligibility Criteria
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Inclusion Criteria
Exclusion Criteria
* Patients with cardiogenic shock
* Post-CABG patients
* Patients with severe renal impairment
18 Years
ALL
No
Sponsors
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Assiut University
OTHER
Responsible Party
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Amr Abdelbadee Abdelhameed Othman
Resident Physician
Principal Investigators
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Salwa R. Dimitry, MD
Role: STUDY_CHAIR
Department of Cardiology, Assiut University Faculty of Medicine
Tarek A. Nagib, MD
Role: STUDY_DIRECTOR
Department of Cardiology, Assiut University Faculty of Medicine
Khaled M. Elmaghraby, MD
Role: STUDY_DIRECTOR
Department of Cardiology, Assiut University Faculty of Medicine
Locations
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Assiut University Heart Hospital
Asyut, , Egypt
Countries
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References
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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.
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.
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.
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Other Identifiers
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17100078
Identifier Type: -
Identifier Source: org_study_id
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