Functional Coronary Angiography–Derived Index of Microcirculatory Resistance in Patients With ST-Segment Elevation Myocardial Infarction

2021 ◽  
Vol 14 (15) ◽  
pp. 1670-1684 ◽  
Author(s):  
Ki Hong Choi ◽  
Neng Dai ◽  
YinLiang Li ◽  
Juwon Kim ◽  
Doosup Shin ◽  
...  
2021 ◽  
pp. 263246362110155
Author(s):  
Pankaj Jariwala ◽  
Shanehyder Zaidi ◽  
Kartik Jadhav

Simultaneous ST-segment elevation (SST-SE) in anterior and inferior leads in the setting of ST-segment elevation myocardial infarction is often confounding for a cardiologist and further more challenging is the angiographic localization of the culprit vessel. SST-SE can be fatal as it jeopardizes simultaneously a larger area of myocardium. This phenomenon could be due to “one lesion, one artery,” “two lesions, one artery,” “two lesions, two arteries,” or combinations in two different coronary arteries. We have discussed an index case where we encountered a phenomenon of SST-SE and coronary angiography demonstrated “two lesions, one artery” (proximal occlusion and distal critical diffuse stenoses of the wrap-around left anterior descending [LAD] artery) and “two lesions, two (different coronary) arteries” (previously mentioned stenoses of the LAD artery and critical stenosis of the posterolateral branch of the right coronary arteries). We have also described in brief the possible causes of this phenomena and their electroangiographic correlation of the culprit vessels.


2020 ◽  
Vol 65 (3) ◽  
pp. 81-88
Author(s):  
Pınar D Gündoğmuş ◽  
Emrah B Ölçü ◽  
Ahmet Öz ◽  
İbrahim H Tanboğa ◽  
Ahmet L Orhan

Introduction Although it is recommended that elderly patients with non-ST-segment elevation myocardial infarction (NSTEMI) should undergo an assessment for invasive revascularization, these patients undergo fewer coronary interventions despite the current guidelines. The aim of the study is to evaluate the effectiveness of percutaneous coronary intervention on all-cause mortalities monthly and annually in the population. Methods Three hundred and twenty-four patients with NSTEMI aged 65 years or older who underwent coronary angiography and treated with conservative strategy or percutaneous coronary intervention were included in the study. All demographic and clinical characteristics of the patients were recorded and one-month and one-year follow-up results were analysed. Results Two hundred eight cases (64.19%) were treated with percutaneous coronary intervention and 116 cases (35.81%) of the participant were treated with conservative methods. The mean age of the participants was 75.41 ± 6.65 years. The treatment strategy was an independent predictor for the mortality of one-year (HR: 1.965). Furthermore, Killip class ≥2 (HR:2.392), Left Ventricular Ejection Fraction (HR:2.637) and renal failure (HR: 3.471) were independent predictors for one-year mortality. Conclusion The present study has revealed that percutaneous coronary intervention was effective on one-year mortality in NSTEMI patients over the age of 65. It is considered that percutaneous coronary intervention would decrease mortality in these patients but it should be addressed in larger population studies.


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