Latar belakang: Polimorfisme Gly972Arg pada gen IRS1 dapat mengganggufungsi normal endotel dan menyebabkan disfungsi endotel. TIMI flow pascaprosedur IKPP dan jumlah pembuluh darah yang terlibat pada pasien IMA-ESTmerupakan prediktor mortalitas dan morbiditas selama perawatan. Mekanismeyang menyebabkan adanya perbedaan profil angiografi ini salah satunyadipengaruhi oleh difungsi endotel di tingkat mikrovaskular dan makrovaskular.Penelitian mengenai hubungan antara polimorfisme Gly972Arg pada gen IRS1dengan TIMI flow pasca prosedur dan jumlah keterlibatan pembuluh darah belumpernah dilakukan.Tujuan: Penelitian ini bertujuan untuk mengetahui hubungan antara polimorfismeGly972Arg pada IRS1 dengan TIMI flow pasca IKPP dan jumlah keterlibatanpembuluh darah pada pasien IMA-EST.Metode: Studi potong lintang pada 104 pasien IMA-EST RSJPDHK yangmenjalani IKPP yang masuk pada registri 2018. Pemeriksaan polimorfismeGly972Arg pada IRS1 dengan menggunakan metode Taqman.Hasil: Terdapat 104 subjek yang diikutsertakan dalam penelitian ini. Subjek dibagidalam 3 kelompok, yakni grup wildtype/CC (42,3%), heterozigot/CT (49,0%), danhomozigot mutan/TT (8,7%). Tidak terdapat hubungan yang bermakna antarakelompok mutan (TT) dengan TIMI flow pasca IKPP (OR 0,8; p = 1,000) danjumlah keterlibatan pembuluh darah (OR 0,3; p = 0,163).Kesimpulan: Tidak terdapat hubungan antara polimorfisme Gly972Arg gen IRS1dengan TIMI flow pasca IKPP dan jumlah keterlibatan pembuluh darah pasien IMAEST.

---

Background: Gly972Arg polymorphism of IRS1 gene can interfere with normalendothelial function and cause endothelial dysfunction. TIMI flow after the primarypercutaneous intervention procedure and the number of coronary vessels involvedin STEMI patients are predictors that determine mortality and morbidity duringtreatment. The mechanism that causes this difference in angiographic profile isinfluenced by endothelial dysfunction at the microvascular and macrovascularlevels. Research on the relationship between Gly972Arg polymorphisms of IRS1gene with TIMI flow post procedure and the amount of blood vessel involvementhas not been carried out.Objective: We sought to define whether Gly972Arg polymorphisms of IRS1 genemay affect TIMI flow after primary percutaneous intervention and number ofcoronary vessel involved.Methods: Cross-sectional study design of 104 STEMI patients who underwentprimary PCI at National Cardiovascular Center Harapan Kita Hospital at year 2018.Examination of Gly972Arg polymorphism on IRS1 is using the Taqman methodPCR.Results: There were 104 of STEMI patients who underwent primary PCI andrecruited for the study. The subjects then divided into 3 categories, which arewildtype/CC (42,3%), carrier/CT (49,0%) and mutant/TT (8,7%). There were nosignificant relationship between the mutant group (TT) with TIMI flow afterprimary PCI (OR 0.8; p = 1,000) and the number of coronary vessel involvement(OR 0.3; p = 0.163).Conclusion: There were no relationship between the Gly972Arg polymorphism ofIRS1 gene with TIMI flow after primary PCI and the number of coronary vesselinvolvement of STEMI patients.