There is a lack of evidence regarding the association of atrial fibrillation (AF) and no-reflow (NR) phenomenon in patients with ST-segment elevation myocardial infarction (STEMI) who underwent primary percutaneous coronary intervention (pPCI). A total of 2452 patients with STEMI who underwent pPCI were retrospectively investigated. After exclusions, 370 (14.6%) patients were in the AF group and 2095 (85.4%) were in the No-AF group. Patients with a thrombolysis in myocardial infarction flow rate <3 were defined as having NR. Patients in the AF group were older and had higher 3-vessel disease rates (24.1% vs 18.9%; P = .021) and lower left ventricular ejection fraction (45.4 [11.7] vs 48.7 [10.5%]; P < .001). No-reflow rates were higher in the AF group than in the No-AF group (29.1% vs 11.8%; P < .001). According to multivariable analysis, AF (odds ratio: 1.81, 95% confidence interval: 1.63-2.04, P < .001), age, Killip class, anterior myocardial infarction, diabetes mellitus, chronic kidney disease, stent length, and smoking were independent predictors of NR following pPCI. Atrial fibrillation is a quite common arrhythmia in patients with STEMI. Atrial fibrillation was found to be an independent predictor of NR in the current study. This effect of AF on coronary flow rate might be considered as an important risk factor in STEMI.

Objectives: In this study, the systemic proinflammatory status was assessed using the systemic immune-inflammation index (SII) and SIRI systemic immune-inflammatory response index (SIRI) in children and adolescents with type 1 diabetes mellitus (T1DM). Methods: The study involved 159 patients aged between 6 and 16 years. The SII and SIRI values were calculated based on the complete blood count. Basic blood biochemistry evaluated, and carotid intima-media thickness (cIMT) was measured and recorded. The cumulative glycemic exposure was calculated by multiplying the value above the normal reference range of the HbA_1c value. The sum of all these values obtained from the time of diagnosis to obtain the cumulative glycemic exposure. All findings were compared statistically. All statistically significant parameters were evaluated in the multivariate logistic regression analysis. Results: The analysis revealed that only cIMT (Exp(B)/OR: 0.769, 95 % CI: 0.694–0.853, p<0.001), high-density lipoprotein (Exp(B)/OR: 3.924, 95 % CI: 2.335–6.596, p<0.001), monocyte count (Exp(B)/OR: 1.650, 95 % CI: 1.257–2.178, p<0.001), hematocrit (Exp(B)/OR: 0.675, 95 % CI: 0.523–0.870, p<0.001), and SIRI (Exp(B)/OR: 1.005, 95 % CI: 1.002–1.008, p<0.001) were significantly associated with T1DM. A statistically significant positive association was found between cumulative glycemic exposure and SIRI only (r=0.213, p=0.032). To our knowledge, this is the first study to evaluate SII and SIRI in children with type 1 diabetes. Conclusions: These findings indicate that SIRI could serve as a potential biomarker for detecting early-onset proatherosclerotic processes in diabetic children. However, further clinical studies are required to confirm this.

To evaluate whether the complete blood count parameters can be used to predict patients who will have positive troponin levels during emergency department observation, and to establish whether any single parameter or combination of parameters has sufficiently good diagnostic test criteria results to be recommended for use in daily clinical practice. An observational study. Department of Emergency Medicine, Duzce University School of Medicine, Duzce, Turkey, from October 2015 to October 2016. Study group had patients with positive troponin levels during observation in the emergency department. The control group had normal troponin levels. Their complete blood count parameters were compared individually and in combination. Total white blood cell count, neutrophil count, red cell distribution width, neutrophil-to-lymphocyte ratio, and some combinations of these parameters were found to be predictive of troponin elevation. The best one was combination of white blood cell count, red cell distribution width and neutrophil-to-lymphocyte ratio. Some of the complete blood count parameters may provide some clues when predicting troponin elevation in patients with chest pain. However, none of these parameters or no combination of them have sufficiently good diagnostic test criteria results to safely predict non-ST segment elevation myocardial infarction.

The present study investigated the relationship between pre-procedural radial intima-media thickness (rIMT) and radial artery thrombosis (RAO) in patients undergoing angiography using a transradial approach (TRA). Patients (n = 90) who underwent cerebral or peripheral arterial angiography using TRA were included in the study. Ultrasonographic evaluation was performed before and 12 h after the procedure. Preoperative rIMT measurement was performed at the distal radial artery. Presence of radial artery occlusion was evaluated by ultrasonography after radial catheterization and revealed occlusive thrombus in the radial artery in 13 patients. rIMT was found to be statistically significantly higher in patients with thrombus ( P < .05). When it was evaluated whether there was a correlation between age and rIMT, a positive significant correlation was found ( P < .01). Our study suggests that increase of rIMT may be a risk factor for RAO in the intervention area. Before the procedure, ultrasound (US) assessment of the radial artery may be useful in determining the risk of occlusion. Thus, RAO-related technical risk factors (procedure time, number of punctures, sheath thickness, etc.) can be managed more carefully in patients having radial angiography.