Murat Erdem Alp, Mustafa Feridun Koşar, Ece Çelebi Coşkun
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The patients were divided into 2 groups based on the corrected TIMI frame count of 27. TP-e interval and Tp-e/QT ratios between these two groups were examined.</p><p><strong>Results: </strong>When the changes in corrected TIMI frame counts and Tp-e interval time were compared, an inverse correlation was found between the changes in Tp-e interval time and corrected TIMI frame count <b>(<i>r</i>= -0.349; <i>p</i> = 0.001)</b>. Similarly, an inverse correlation was observed in the change in the Tp-e/QT ratio <b>(<i>r</i>= -0.343; <i>p</i> = 0.002)</b>. Patients were divided into 2 groups based on the corrected TIMI frame count (upper limit value of 27). There was a significant difference between the two groups in terms of Tp-e interval <b>(<i>p</i> = 0.003; <i>p</i> < 0.01)</b> and Tp-e/QT ratios (<i>p</i> = 0.023; <i>p</i> < 0.05) measured in the 90th minute ECGs after revascularization.</p><p><strong>Conclusions: </strong>Coronary antegrade blood flow can be demonstrated invasively by the non-invasive parameters TP-e interval and Tpe/QT ratio instead of corrected TIMI frame count.</p>","PeriodicalId":6979,"journal":{"name":"Acta cardiologica","volume":" ","pages":"1-6"},"PeriodicalIF":2.5000,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Investigation of the relationship between TIMI frame count, Tp-E interval duration and Tp-E/QT ratio in patients with ST elevation myocardial infarction.\",\"authors\":\"Murat Erdem Alp, Mustafa Feridun Koşar, Ece Çelebi Coşkun\",\"doi\":\"10.1080/00015385.2025.2553958\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Background: </strong>TIMI (Thrombolysis In Myocardial Infarction) frame count is a quantitative method that objectively assesses slow coronary blood flow. 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引用次数: 0
摘要
背景:TIMI (Thrombolysis In Myocardial Infarction,心肌梗死溶栓)框架计数是一种客观评估冠状动脉血流缓慢的定量方法。在我们的研究中,对ST段抬高型心肌梗死(STEMI)患者血运重建术后经校正的TIMI框架计数和非侵入性参数,如Tp-e间期和Tp-e/QT比值进行了研究。方法:将2020年1月至2020年7月期间初步诊断为STEMI的患者纳入我们的研究。从冠状动脉造影角度,测量手术后校正的TIMI框架计数。记录术前和术后心电图的Tp-e间期和Tp-e/QT比值。根据校正后的TIMI帧数27分为两组。观察两组间TP-e间期及TP-e /QT比值。结果:将校正后的TIMI帧数与Tp-e间隔时间的变化进行比较,发现Tp-e间隔时间的变化与校正后的TIMI帧数呈负相关(r= -0.349; p = 0.001)。同样,Tp-e/QT比值的变化也呈负相关(r= -0.343; p = 0.002)。根据校正后的TIMI帧数(上限为27)将患者分为两组。两组间Tp-e间期(p = 0.003; p)和Tp-e/QT比值(p = 0.023; p)差异有统计学意义。结论:冠脉顺行血流可通过Tp-e间期和Tpe/QT比值等无创参数,而非经校正的TIMI帧计数来判断。
Investigation of the relationship between TIMI frame count, Tp-E interval duration and Tp-E/QT ratio in patients with ST elevation myocardial infarction.
Background: TIMI (Thrombolysis In Myocardial Infarction) frame count is a quantitative method that objectively assesses slow coronary blood flow. In our study, corrected TIMI frame count and non-invasive parameters such as Tp-e interval and Tp-e/QT ratio were investigated after revascularization in patients with ST Elevation Myocardial Infarction (STEMI).
Methods: Patients who were admitted to our hospital with a preliminary diagnosis of STEMI between January 2020 and July 2020 were included in our study. From coronary angiography views, post-procedure corrected TIMI frame counts were measured. Pre and post-procedure Tp-e interval and Tp-e/QT ratios from ECGs were recorded. The patients were divided into 2 groups based on the corrected TIMI frame count of 27. TP-e interval and Tp-e/QT ratios between these two groups were examined.
Results: When the changes in corrected TIMI frame counts and Tp-e interval time were compared, an inverse correlation was found between the changes in Tp-e interval time and corrected TIMI frame count (r= -0.349; p = 0.001). Similarly, an inverse correlation was observed in the change in the Tp-e/QT ratio (r= -0.343; p = 0.002). Patients were divided into 2 groups based on the corrected TIMI frame count (upper limit value of 27). There was a significant difference between the two groups in terms of Tp-e interval (p = 0.003; p < 0.01) and Tp-e/QT ratios (p = 0.023; p < 0.05) measured in the 90th minute ECGs after revascularization.
Conclusions: Coronary antegrade blood flow can be demonstrated invasively by the non-invasive parameters TP-e interval and Tpe/QT ratio instead of corrected TIMI frame count.
期刊介绍:
Acta Cardiologica is an international journal. It publishes bi-monthly original, peer-reviewed articles on all aspects of cardiovascular disease including observational studies, clinical trials, experimental investigations with clear clinical relevance and tutorials.