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dc.contributor.advisorMukhtar, Zulfikri
dc.contributor.advisorNasution, Ali Nafiah
dc.contributor.authorSiregar, Yasmine F.
dc.date.accessioned2019-05-07T02:14:46Z
dc.date.available2019-05-07T02:14:46Z
dc.date.issued2019
dc.identifier.urihttp://repositori.usu.ac.id/handle/123456789/13878
dc.description.abstractLatar Belakang: Kolateral arteri koroner (KAK) merupakan respon adaptif terhadap iskemia miokard kronis. Pasien dengan stenosis koroner memiliki derajat kolateral yang bervariasi. Kadar sel inflamasi adalah determinan dari perkembangan pembuluh kolateral. Rasio neutrofil-limfosit (RNL) berperan sebagai penanda prognostik respon inflamasi sistemik dan perkembangan KAK. Penelitan ini bertujuan untuk melihat hubungan antara nilai RNL dengan perkembangan KAK pada pasien penyakit jantung koroner (PJK) dengan multivessel disease. Metode: Sebanyak 151 penderita multivessel disease terlibat dalam penelitian ini. Derajat KAK diklasifikasikan menurut klasifikasi Rentrop, yaitu kurang baik (nilai Rentrop 0-1) dan baik (nilai Rentrop 2-3). Faktor-faktor yang signifikan dengan nilai p≤0,25 pada model bivariat akan dimasukkan ke dalam regresi logistik multipel. Analisis receiver–operating characteristic (ROC) dilakukan untuk menentukan titik potong nilai RNL yang memprediksi kondisi KAK yang kurang baik Hasil: Dari 151 pasien PJK dalam studi ini, dijumpai 76 penderita dengan KAK kurang baik dan 75 penderita dengan KAK baik. Penderita PJK dengan KAK yang kurang baik memiliki nilai RNL yang lebih tinggi dibandingkan penderita PJK dengan KAK baik (2,25±1,189 vs. 3,03±1,527, p <0,001) Hasil analisis regresi logistik multipel mendapatkan nilai RNL yang tinggi adalah prediktor independen KAK yang kurang baik (OR 0,756; IK 95% 0,587 – 0,974). Hasil analisis ROC menemukan nilai potong RNL 1,99 (AUC 0,72, sensitivitas 78,9%, spesifisitas 52%) untuk memprediksi KAK yang kurang baik. Kesimpulan: Rasio neutrofil-limfosit yang tinggi mampu memprediksi keadaan kolateral arteri koroner yang kurang baik pada penderita penyakit jantung koroner stabil dengan multivessel disease. Nilai RNL >1,99 secara independen berhubungan dengan KAK yang kurang baik. Nilai ini memiliki sensitivitas 78,9% dan spesifisitas 52%.en_US
dc.description.abstractBackground: Coronary collateral circulation (CCC) is an adaptive response to chronic myocardial ischemia. Patients with coronary stenosis develop varying degrees of collateral. Levels of inflammatory cells were suggested as potential determinants of collateral development. Neutrophil to lymphocyte (N/L) ratio has been proposed as a prognostic marker to determine systemic inflammatory response and the development of CCC. Our aim was to determine the relationship between N/L ratio and development of CCC in patients with coronary artery disease (CAD) with multivessel disease. Methode: A total of 151 patients with multivessel disease were included in this study. Coronary collateral grades were classified according to Rentrop collateral grades as either poorly developed CCC (Rentrop grade 0-1) or well developed CCC (Rentrop grades 2-3). Factors significant at the p≤0.25 in the bivariate models were put into multiple logistic regressions. The receiver–operating characteristic (ROC) analysis were performed to determine the cutoff value of NLR in prediction poor CCC. Result: Of the 151 CAD patients in this study, 76 patients had poorly developed CCC and 75 patients had well developed CCC. Poorly developed CCC had significantly higher N/L ratio than well developed CCC (2.25±1.189 vs. 3.03±1.527, p <0.001). Logistic regression analysis showed that N/L ratio (OR 0.756; CI 95% 0.587 – 0.974, p 0.031) was independent predictor of poorly developed CCC. The ROC analysis provided a cut-off value of 1.99 (AUC 0.72, sensitivity 78.9%, specificity 52%) for N/L ratio to predict poorly developed CCC. Conclusion: Higher neutrophil to lymphocyte ratio was useful in predicting poor coronary collateral circulation in stable coronary heart disease with multivessel disease. Neutrophil to lymphocyte ratio >1.99 was independently associated with impairment in coronary collateralization. This value had a sensitivity of 78.9% and specificity of 52%.en_US
dc.language.isoiden_US
dc.publisherUniversitas Sumatera Utaraen_US
dc.subjectKolateral Arteri Koroneren_US
dc.subjectRasio Neutrofil Limfositen_US
dc.subjectPenyakit Jantung Koroneren_US
dc.subjectParameter Hematologisen_US
dc.titlePeran Nilai Rasio Neutrofil-Limfosit dalam Menilai Keadaan Kolateral Arteri Koroner pada Penderita Penyakit Jantung Koroner Stabilen_US
dc.typeThesisen_US
dc.identifier.nimNIM147115002
dc.description.pages81 Halamanen_US
dc.description.typeTesis Magisteren_US


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