Can frontal QRS-T angle predict mortality in patients with severe Crimean-Congo Hemorrhagic Fever?

Authors : Anıl ŞAHİN, Oğuz GÜNDOĞDU, Onur AVCI
Pages : 181-186
Doi:10.30621/jbachs.1298337
View : 62 | Download : 28
Publication Date : 2023-09-30
Article Type : Research Paper
Abstract :Purpose: This study aims to determine whether frontal QRS-T insert ignore into journalissuearticles values(fQRS-T); angle measurements assist in predicting prognosis in severe CCHF insert ignore into journalissuearticles values(Crimean-Congo Hemorrhagic Fever); patients. Material and Method: The study was conducted with 140 intensive care patients diagnosed with CCHF between 01.01.2012 and 2022. Demographic data and length of stay were recorded. In addition, laboratory data were recorded, including hemoglobin, troponin T, C-reactive protein, lymphocyte numbers, neutrophil, and platelet. fQRS-T angles were measured on electrocardiographic insert ignore into journalissuearticles values(ECG); data of the patients. Results: The mean fQRS-T angle was 53.9°±29.3° in non-survivors and 34.2°±17.3° in the survivors insert ignore into journalissuearticles values(p<0.001);. Regarding non-survivors, they were older, and their hemoglobin, platelet and lymphocyte levels were lower insert ignore into journalissuearticles values(p<0.001);, and their QRS durations were broader insert ignore into journalissuearticles values(p=0.021); than survivors. The fQRS-T angle cutoff value in predicting mortality was determined as 41.5°. For fQRS-T ≥41.5°, specificity was 61.1%, and sensitivity was 80.9% insert ignore into journalissuearticles values(area under the curve: 0.711, 95% CI: 0.624–0.798, p<0.001);. Conclusion: Current study\`s results showed the usability of the fQRS-T angle as an inexpensive, convenient, strong, and repeatable predictor to determine the prognosis of CCHF patients. A detailed electrocardiographic evaluation in the routine follow-up of high-risk CCHF patients may indicate the prognosis of the disease.
Keywords : QRS T angle, Crimean Congo Hemorrhagic Fever, mortality, prognosis

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