The role of cardiac markers in acute myocardial infarction and unstable angina pectoris discrimination in patients with coronary intensive care unit
Koroner yoğun bakım ünitesindeki hastalarda akut miyokard infaktüsü ve anstabil angina pektoris ayrımında kardiyak belirteçlerin rolü
Mustafa Şahin 1 * , Mehmet Kabalcı 2, Ünsal Savcı 3
1 Hitit Üniversitesi Erol Olçok Eğitim ve Araştırma Hastanesi, Tıbbi Biyokimya Laboratuvarı, Çorum, Türkiye
2 Kırıkkale Üniversitesi Kırıkkale Tıp Fakültesi, Kalp ve Damar Cerrahisi Anabilim Dalı, Kırıkkale, Türkiye
3 Hitit Üniversitesi Erol Olçok Eğitim ve Araştırma Hastanesi, Tıbbi Mikrobiyoloji Laboratuvarı, Çorum, Türkiye
* Corresponding Author
Ortadogu Tıp Derg, Volume 10, Issue 2, pp. 110-114
https://doi.org/10.21601/ortadogutipdergisi.364180
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Abstract
Aim: Cardiac markers have been keeping on their importance in correct triage of cardiac and noncardiac patients, in addition to physical examination finding, electrocardiography (ECG) and echocardiography (ECHO). In this study, we aimed to develop an acceptable strategy by evaluating the cardiac troponin and creatine kinase MB (CKMB) test results and clinical data of patients with acute myocardial infarction (AMI) and unstable angina pectoris (USAP) in coronary intensive care unit.
Material and Method: Clinical and laboratory data of 208 patients (age: 61±12) in coronary intensive care unit were retrospectively reviewed. Patients were divided into three groups according to their diagnosis. Group 1 consisted from 132 patients with AMI; Group 2 consisted from 28 patients with USAP without AMI; Group 3 consisted from 48 patients with noncardiac disease (chronic heart failure, renal failure, sepsis, etc.). CKMB levels were measured by the immunoinhibition method in Dimension Xpand Plus (Dade Behring Inc, Newark, USA) chemistry autoanalyzer. The cardiac T quantitative rapid assay point of care testing analyzer (Roche Diagnostics GmbH, Mannheim, Germany) was used for cTnT (cardiac troponin T) measurement.
Result: ROC analysis was performed for biomarkers CKMB and cTnT in evaluating the groups. For the AMI group; Area under the curve of CKMB (AUC): 0.724 (SE=0.041, p<0.001), AUC of cTnT: 0.741 (SE=0.038, p<0.001); for the USAP group; AUC of CKMB:0.536 (SE=0.067, p=0.601) and AUC of cTnT: 0.637 (SE=0.067, p=0.047) were detected.
Conclusion: The ROC analysis results and the AUC evaluations revealed the diagnostic power of cardiac markers CKMB and cTnT in the discrimination between AMI and USAP patients. The combined use of these cardiac markers increases the diagnostic power. ROC analysis may be useful in large sample studies for noncardiac patient groups.
Öz
Amaç: Kardiyak belirteçler; kardiyak ve non-kardiyak hastaların doğru triajında fizik muayene bulguları, elektrokardiyografi (EKG) ve ekokardiyografi (EKO)’ya ek olarak önemini korumaktadır. Bu çalışmada, koroner yoğun bakım ünitesindeki akut miyokard infarktüsü (AMI) ve anstabil angina pektoris (ASAP) olan hastaların kardiyak troponin ve kreatin kinaz MB (CKMB) test sonuçlarını ve klinik verilerini değerlendirerek kabul edilebilir bir strateji geliştirmeyi amaçladık.
Gereç ve Yöntem: Koroner yoğun bakım ünitesinde yatan 208 hastanın (yaş:61±12) klinik ve laboratuvar verileri retrospektif olarak incelendi. Hastalar tanılarına göre üç gruba ayrıldı. Grup 1, AMİ olan 132 hastadan oluştu; Grup 2, AMİ olmayan ASAP’lı 28 hastadan oluştu; Grup 3, non-kardiyak hastalığı olan 48 hastadan (kronik kalp yetmezliği, böbrek yetmezliği, sepsis, vb.) oluştu. CKMB seviyeleri Dimension Xpand Plus (Dade Behring Inc, Newark, ABD) marka biyokimya otoanalizöründe immünoinhibisyon yöntemiyle ölçüldü. CTnT (Kardiyak Troponin T) ölçümü için Cardiac T Quantitative Rapid Assay (Roche Diagnostics GmbH, Mannheim, Almanya) hasta başı cihazı kullanıldı.
Bulgular: Grupları değerlendirmede biyolojik belirteçler CKMB ve cTnT için ROC analizi yapıldı. AMI grubu için; CKMB’nin Eğri Altındaki Alan (EAA):0.724 (SE=0.041, p<0.001), cTnT’nin EAA:0.741 (SE=0.038, p<0.001); ASAP grubu için; CKMB’nin EAA:0.536 (SE=0.067, p=0.601), cTnT’nin EAA:0.637 (SE=0.067, p=0.047) olarak tespit edildi.
Sonuç: ROC analizi sonuçları ve EAA değerlendirmeleri AMI ve ASAP hastalarının ayrımında kardiyak belirteçler CKMB ve cTnT’nin tanısal gücünü ortaya koydu. Bu kardiyak belirteçlerin birlikte kullanılması tanısal gücü artırmaktadır. Non-kardiyak hasta grupları için büyük örneklemli çalışmalarda ROC analizi faydalı olabilir.
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Citation
Şahin M, Kabalcı M, Savcı Ü. The role of cardiac markers in acute myocardial infarction and unstable angina pectoris discrimination in patients with coronary intensive care unit. Ortadogu Tıp Derg. 2018;10(2):110-4.
https://doi.org/10.21601/ortadogutipdergisi.364180
Şahin, M., Kabalcı, M., & Savcı, Ü. (2018). The role of cardiac markers in acute myocardial infarction and unstable angina pectoris discrimination in patients with coronary intensive care unit.
Ortadoğu Tıp Dergisi, 10(2), 110-114.
https://doi.org/10.21601/ortadogutipdergisi.364180
Şahin, M., Kabalcı, M., and Savcı, Ü. (2018). The role of cardiac markers in acute myocardial infarction and unstable angina pectoris discrimination in patients with coronary intensive care unit.
Ortadoğu Tıp Dergisi, 10(2), pp. 110-114.
https://doi.org/10.21601/ortadogutipdergisi.364180
Şahin M, Kabalcı M, Savcı Ü. The role of cardiac markers in acute myocardial infarction and unstable angina pectoris discrimination in patients with coronary intensive care unit.
Ortadogu Tıp Derg. 2018;10(2), 110-114.
https://doi.org/10.21601/ortadogutipdergisi.364180
Şahin, Mustafa, Mehmet Kabalcı, and Ünsal Savcı. "The role of cardiac markers in acute myocardial infarction and unstable angina pectoris discrimination in patients with coronary intensive care unit".
Ortadoğu Tıp Dergisi 2018 10 no. 2 (2018): 110-114.
https://doi.org/10.21601/ortadogutipdergisi.364180
Şahin, Mustafa et al. "The role of cardiac markers in acute myocardial infarction and unstable angina pectoris discrimination in patients with coronary intensive care unit".
Ortadoğu Tıp Dergisi, vol. 10, no. 2, 2018, pp. 110-114.
https://doi.org/10.21601/ortadogutipdergisi.364180