Comparison of outcomes between single long stent and overlapping stents: a meta-analysis of the literature.

OBJECTIVES: There is no consensus on whether to treat diffuse coronary artery lesions with a single long stent (SLS) or by overlapping two or more stents (OLS). The goal of this review was to compare the outcomes of these two approaches through a meta-analysis of the literature. METHODS: We searched for relevant studies in MEDLINE, Scopus, EMBASE, Google Scholar, and the Cochrane Library. Our meta-analysis included 12 studies (n = 6414) that reported outcomes during the follow-up period. RESULTS: Individuals who received OLS had a greater risk of cardiac mortality and target lesion revascularization (TLR) than those who received SLS (RR: 1.51, CI: 1.03-2.21, p = 0.03, I2 = 0% and RR: 1.64, CI: 1.02-2.65, p = 0.04, I2 = 38%, respectively). The fluoroscopy period in the OLS group was longer than in the SLS group (SMD: 0.35, CI: 0.25-0.46, p < 0.01, I2 = 0%). more contrast volume was sued for the OLS group; however, there was substantial variability in the pooled analysis (I2 = 95%). In terms of all outcomes, there were no differences between stent generation types. CONCLUSION: In the first meta-analysis of mainly observational data comparing OLS vs. SLS for long coronary lesions, OLS had higher rates of cardiac mortality and TLR as well as longer fluoroscopy times compared to SLS.

Association of Tp-e/QT ratio with SYNTAX score II in patients with coronary artery disease.

Background. The SYNTAX score II (SS) is an angiographic tool, which grades the complexity of coronary artery lesions and predicts short- and long-term events. Tp-e/QT ratio is a novel electrocardiographic marker for the risk of ventricular arrhythmias. We aimed to investigate whether there was a correlation between SS and Tp-e/QT ratio.Methods. A total of 227 consecutive patients who underwent elective coronary angiography were enrolled in this study. Patients who had a lumen diameter >1.5 mm and at least % 50 diameter stenosis on coronary angiogram were determined as coronary artery disease (CAD) group, and others were identified as a control group. The SS was calculated for the CAD group, and SS ≥23 was defined as a high SS group, and SS < 23 was identified as a low SS group. Electrocardiographic indices, such as Tp-e and Tp-e/QT, were measured for all patients. A multivariable logistic regression analysis was performed with variables age, interventricular septum thickness (IVS), hypertension, and Tp-e/QT. Results. Tp-e interval and Tp-e/QT ratio were higher in the CAD group compared with the control group. Tp-e, corrected Tp-e (cTP-e) and Tp-e/QT were higher in the high SS group than in the low SS group. The cTp-e and Tp-e/QT were correlated with SS score. Age, IVS and Tp-e/QT ratio were independent predictors of high SS in the logistic regression analysis. Conclusions. Tp-e/QT ratio was an independent predictor of high SS and might be used for risk stratification in CAD patients.

Evaluating the systemic immune-inflammation index for in-hospital and long-term mortality in elderly non-ST-elevation myocardial infarction patients.

INTRODUCTION: This investigation aimed to evaluate the predictive value of the systemic immune-inflammation index (SII) for in-hospital and long-term mortality in elderly patients with non-ST-elevation myocardial infarction (NSTEMI). METHODS: This retrospective investigation included 314 consecutive elderly NSTEMI patients in a tertiary center. SII is computed as (neutrophils × platelets)/lymphocytes. Based on the increased SII values, we classified the research sample into three tertile groups as T1, T2, and T3. The in-hospital and long-term mortality were defined as the primary outcomes. RESULTS: Patients in the T3 group had lower chances of survival in the in-hospital and long-term periods compared with those in the T2 and T1 groups. According to the multivariable Cox regression models, SII independently related with in-hospital (hazard ratio (HR): 1.001, 95% CI: 1.000-1.1003, p = 0.038) and long-term mortality (HR: 1.004, 95% CI: 1.002-1.006, p < 0.001). To predict long-term mortality, the optimal SII value was > 2174 with 80% sensitivity and 85.4% specificity. SII had a slightly lower but statistically non-inferior discriminative ability for long-term mortality compared with the Charlson comorbidity index (CCI) in the receiver operating characteristic curve comparison (AUC: 86.2 vs. AUC: 890, p > 0.05). Additionally, combining SII with traditional risk factors and the CCI revealed a significant improvement in C-statistics. CONCLUSION: This investigation may be the first to demonstrate that SII is independently linked with in-hospital and long-term mortality in elderly NSTEMI patients.

The predictive value of the MELD-XI score for short- and long-term mortality in elderly patients with non-ST elevation myocardial infarction.

BACKGROUND: In this study, we investigated the utility of the Model for End-stage Liver Disease excluding INR (MELD-XI) score in predicting short- and long-term mortality in elderly patients with non-ST elevation myocardial infarction (NSTEMI) who underwent coronary angiography (CAG). METHODS: In total, we analyzed 228 elderly NSTEMI patients above the age of 75. We used the modified 5-item frailty index and the Charlson Comorbidity Index (CCI) to assess the comorbidities. The MELD-XI score was calculated using the logarithmic relationship between the serum creatinine and total bilirubin. RESULTS: The median long-term follow-up was 530 [interquartile range (IQR) = 303-817] days and the short- and long-term mortality rates were 11.8% (n = 27) and 16.4% (n = 33), respectively. Patients who did not survive had a substantially higher MELD-XI score than those who did [10.1 (IQR = 7.8-15.1) vs. 4.5 (IQR = 1.9-6.9), p < 0.001, respectively]. Multivariable Cox regression analyses indicated that the MELD-XI score predicted both short- and long-term mortality independently. When the MELD-XI score, serum creatinine, and total bilirubin area under the curve (AUC) values were compared to predict long-term mortality, the MELD-XI score had the highest value (AUC: 0.833), followed by the serum creatinine (AUC: 0.741), and the total bilirubin (AUC: 0.723). The accuracy of the MELD-XI score was further tested with the GRACE risk score, which demonstrated noninferiority. CONCLUSION: This was the first investigation which indicated that elderly NSTEMI patients with a high MELD-XI score had poor prognosis in the short- and long-term period.

Predictive value of uric acid/albumin ratio for the prediction of new-onset atrial fibrillation in patients with ST-Elevation myocardial infarction.

Background: There is a lack of studies supporting the association between the uric acid/albumin ratio (UAR) and the development of new-onset atrial fibrillation (NOAF) in ST-elevation myocardial infarction (STEMI) patients treated with primary percutaneous coronary intervention (pPCI). Objective: The objective of the study was to assess the efficacy of the UAR for predicting the occurrence of NOAF in STEMI patients undergoing pPCI. Methods: We recruited 1484 consecutive STEMI patients in this retrospective and cross-sectional investigation. The population sample was classified based on the development of NOAF during hospitalization. NOAF was defined as an atrial fibrillation (AF) observed during hospitalization in patients without a history of AF or atrial flutter. The UAR was computed by dividing the serum uric acid (UA) level by serum albumin level. Results: After pPCI, 119 STEMI patients (8%) were diagnosed with NOAF. NOAF patients had higher serum UAR levels than individuals who did not have NOAF. According to the multivariable logistic regression model, the UAR was an independent predictor for NOAF in STEMI patients (OR: 6.951, 95% CI: 2.978-16.28, p < 0.001). The area under curve (AUC) value of the UAR in a receiver operating characteristics (ROC) evaluation was 0.758, which was greater than those of its components (albumin [AUC: 0.633] and UA [AUC: 0.647]) and C-reactive protein (AUC: 0.714). The optimal UAR value in predicting NOAF in STEMI patients was greater than 1.39, with a sensitivity of 69% and a specificity of 74.5%. Conclusion: To the best of our knowledge, this is the first study indicating that the UAR was an independent predictor of NOAF development in STEMI patients.

Relationship between P wave peak time and coronary artery disease severity in non-ST elevation acute coronary syndrome.

BACKGROUND: Early diagnosis of non-ST elevation acute coronary syndrome (NSTE-ACS) and prediction of the severity of current coronary artery disease (CAD) play a major role in patient prognosis. Electrocardiography has a unique value in the diagnosis and provides prognostic information on patients with NSTE-ACS. In the present study, we aimed to examine the relationship between P wave peak time (PWPT) and the severity of CAD in patients with NSTE-ACS. METHODS: A total of 132 consecutive patients (female: 35.6%; mean age: 60.1 ± 11.6 years) who were diagnosed with NSTE-ACS were evaluated retrospectively. Gensini scores (GSs) were used to define the angiographic characteristics of the coronary atherosclerotic lesions. The patients were divided into two groups according to the GS. The PWPT was defined as the duration between the beginning and the peak of the P wave, and R wave peak time (RWPT) was defined as the duration between the beginning of the QRS complex and the peak of the R wave. RESULTS: There were 59 (44.6%) patients in the high-GS group (GS ≥25 ) and 73 (55.3%) patients in the low-GS group (GS <25 ). Presence of diabetes mellitus, low left ventricular ejection fraction, and high RWPT and PWPT were identified as predictors of a high GS in the study population. There was no significant difference between the area under the curves of PWPT and RWPT for predicting the severity of CAD (0.663 vs. 0.623, respectively; p = 0.573). CONCLUSION: The present study found that both PWPT and RWPT on admission electrocardiography were associated with the severity and complexity of CAD in patients with NSTE-ACS.

The significance of the morphology-voltage-P-wave duration (MVP) ECG score for prediction of in-hospital and long-term atrial fibrillation in ischemic stroke.

BACKGROUND: Atrial fibrillation (AF) is the most common preventable cause of stroke. Diagnosis of new AF is frequent after acute ischemic stroke (AIS). We aimed to evaluate the predictive value of the recently developed morphology-voltage-P-wave duration (MVP) ECG risk score for in-hospital and long-term AF diagnosis following AIS. MATERIAL AND METHODS: In this observational investigation, we evaluated the ability of the MVP ECG risk score to predict AF in 266 consecutive patients with AIS. The study population was divided into three groups according to their calculated MVP ECG risk score on admission electrocardiography. The groups were compared in terms of their predictive value for in-hospital and long-term AF diagnosis. RESULTS: After adjustment for confounding baseline variables, MVP ECG risk score 5-6 group had 13.2 times higher rates of in-hospital AF compared to MVP ECG risk score 0-2 group, which was used as the reference group. For long-term follow-up, MVP ECG risk score 5-6 group had 5.2 times higher rates of long-term AF compared to MVP ECG risk score 0-2 group. A ROC analysis showed that the optimal cut-off value of the MVP ECG risk score to predict in-hospital AF was 4 with 78% sensitivity and 76% specificity (AUC: 0.80; 95% CI: 0.64-0.96; p < 0.001), the optimal cut-off value of the MVP ECG risk score to predict long-term AF was 3 with 85% sensitivity and 59% specificity (AUC: 0.81; 95% CI: 0.76-0.86; p < 0.001). CONCLUSION: The MVP ECG risk score, which can be easily calculated from a surface ECG, can be used to guide who needs stricter monitoring for the diagnosis of long-term AF in patients with AIS.

Prognostic Value of Systemic Immune-Inflammation Index for Major Adverse Cardiac Events and Mortality in Severe Aortic Stenosis Patients after TAVI.

Background and objectives: In this study, we aimed to evaluate whether the systemic immune-inflammation index (SII) has a prognostic value for major adverse cardiac events (MACEs), including stroke, re-hospitalization, and short-term all-cause mortality at 6 months, in aortic stenosis (AS) patients who underwent transcatheter aortic valve implantation (TAVI). Materials and Methods: A total of 120 patients who underwent TAVI due to severe AS were retrospectively included in our study. The main outcome of the study was MACEs and short-term all-cause mortality at 6 months. Results: The SII was found to be higher in TAVI patients who developed MACEs than in those who did not develop them. Multivariate Cox regression analysis revealed that the SII (HR: 1.002, 95%CI: 1.001-1.003, p < 0.01) was an independent predictor of MACEs in AS patients after TAVI. The optimal value of the SII for MACEs in AS patients following TAVI was >1.056 with 94% sensitivity and 96% specificity (AUC (the area under the curve): 0.960, p < 0.01). We noted that the AUC value of SII in predicting MACEs was significantly higher than the AUC value of the C-reactive protein (AUC: 0.960 vs. AUC: 0.714, respectively). Conclusions: This is the first study to show that high pre-procedural SII may have a predictive value for MACEs and short-term mortality in AS patients undergoing TAVI.

Is the use of ACE inb/ARBs associated with higher in-hospital mortality in Covid-19 pneumonia patients?

INTRODUCTION: The present research aimed to determine the relation between the use of angiotensin-converting enzyme inhibitors (ACE inh) and angiotensinogen receptor blockers (ARBs) and in-hospital mortality of hypertensive patients diagnosed with Covid-19 pneumonia. MATERIAL AND METHOD: In this retrospective study, we included 113 consecutive hypertensive patients admitted due to Covid-19 infection. In all patients, Covid-19 infection was confirmed with using reverse-transcription polymerase chain reaction. All patients were on ACE inh/ARBs or other antihypertensive therapy unless no contraindication was present. The primary outcome of the study was the in-hospital all-cause mortality. RESULTS: In total, 113 hypertensive Covid-19 patients were included, of them 74 patients were using ACE inh/ARBs. During in-hospital follow up, 30.9% [n = 35 patients] of patients died. The frequency of admission to the ICU and endotracheal intubation were significantly higher in patients using ACE inh/ARBs. In a multivariable analysis, the use of ACE inh/ARBs was an independent predictor of in-hospital mortality (OR: 3.66; 95%CI: 1.11-18.18; p= .032). Kaplan-Meir curve analysis displayed that patients on ACE inh/ARBs therapy had higher incidence of in-hospital death than those who were not. CONCLUSION: The present study has found that the use of ACE inh/ARBs therapy might be associated with an increased in-hospital mortality in patients who were diagnosed with Covid-19 pneumonia. It is likely that ACE inh/ARBs therapy might not be beneficial in the subgroup of hypertensive Covid-19 patients despite the fact that there might be the possibility of some unmeasured residual confounders to affect the results of the study.

Relationship between paroxysmal atrial fibrillation and a novel electrocardiographic parameter P wave peak time.

OBJECTIVE: The aim of this study was to compare the relationship between a novel electrocardiographic (ECG) parameter P wave peak time (PWPT) and classic P wave parameters with atrial fibrillation (AF). METHODS: A total of 140 individuals, including 70 patients with AF history and 70 healthy individuals without AF as the control group were included in the study. These groups were compared in terms of demographic characteristics, laboratory findings and ECG parameters. P wave parameters including; PR interval, P wave dispersion(PWDIS), P wave max duration(PWD) abnormal P wave axis, P-wave terminal force in lead V1 and a novel parameter PWPT were calculated from a 12-lead surface ECG recorded in all patients during sinus rhythm. RESULTS: PR duration, PWDIS, PWD and PWPT in lead V1 and D2 were found to be longer in AF group compared to the control group. The presence of a P-terminal force in lead 1(V1TF) > 0.04 mm/s and abnormal P wave axis were shown to be significantly more frequent in the AF group. Univariate and multivariate regression analyses revealed independent relationship between the PWPT in lead V1 and AF(OR: 1.09, CI:1.01-1.17, p:0.024). In ROC curve analysis PWPTV1 above a cut-off level of 49.5msc predicted AF with a sensitivity of 79.4% and a specificity of 56.3% (Area Under Curve(AUC): 0.737, p < 0.001). CONCLUSION: In this study, we observed that PWPTV1 is longer in patients with paroxysmal AF than in controls.

The association between electrocardiographic R wave peak time and coronary artery disease severity in patients with non-ST segment elevation myocardial infarction and unstable angina pectoris.

BACKGROUND: We aimed to evaluate possible association between QRS duration (QRSD), R wave peak time (RWPT), and coronary artery disease severity identified using the SYNTAX score (SS) in patients with unstable angina pectoris (USAP) or non-ST segment elevation myocardial infarction (NSTEMI). METHOD: A total of 176 USAP/NSTEMI patients were enrolled in the study. RESULTS: The high SS group (>22, n:45) patients had a higher prevalence of diabetes mellitus (DM); presence of ST segment depression ≥0.5 mm and 1 mm; ST segment elevation in the AVR lead (AVRSTE); longer QRSD and RWPT; and lower left ventricular ejection fraction (LVEF) than the low SS group (≤22, n: 131). The LVEF, AVRSTE, and RWPT (OR: 1.035, 95% CI: 1.003-1.067; p = 0.030) were independent predictors of high SS. CONCLUSION: The present study demonstrated that RWPT and AVRSTE could be used as predictors of high SS.

Evaluation of pulmonary arterial stiffness in post mild COVID-19 patients: a pilot prospective study.

BACKGROUND: Our primary goal was to utilize pulmonary arterial stiffness (PAS) to demonstrate the early alterations in the pulmonary vascular area in individuals with prior COVID-19 illness who had not undergone hospitalization. METHODS: In total, 201 patients with prior COVID-19 infection without hospitalization and 195 healthy, age- and sex-matched individuals without a history of COVID-19 disease were included in this prospective analysis. The PAS value for each patient was calculated by dividing the mean peak pulmonary flow velocity by the pulmonary flow acceleration time. RESULTS: The measured PAS was 10.2 ± 4.11 Hz/msec in post-COVID-19 participants and 8.56 ± 1.47 Hz/msec in healthy subjects (P < 0.001). Moreover, pulmonary artery acceleration time was significantly lower in patients with a prior history of COVID-19. Multivariable logistic regression analysis revealed that PAS was significantly connected to a prior COVID-19 illness (odds ratio, 1.267; 95% confidence interval, 1.142-1.434; P < 0.001). The optimal cutoff point for detecting a prior COVID-19 disease for PAS was 10.1 (sensitivity, 70.2%; specificity, 87.7%). CONCLUSIONS: This might be the first investigation to reveal that patients with a history of COVID-19 had higher PAS values compared to those without COVID-19. The results of the investigation may indicate the need of regular follow up of COVID-19 patients for the development of pulmonary arterial hypertension, especially during the post-COVID-19 interval.

Increased QT dispersion and P wave dispersion in major depressive disorder.

BACKGROUND: QT and P wave dispersion parameters can indicate abnormalities in autonomic nervous system and cardiac functioning. OBJECTIVES: To determine QT and P wave dispersion in patients with major depressive disorder compared with healthy volunteers. METHODS: Fifty newly diagnosed patients with major depressive disorder and 50 age- and sex-matched healthy volunteers underwent 12-lead electrocardiography. QT interval, QT dispersion, heart rate-corrected QT dispersion and P wave dispersions were calculated manually by a blinded specialist. RESULTS: Groups were comparable in terms of age, sex, body mass index, smoking status, metabolic diseases and left ventricular ejection fraction. The major depressive disorder group had significantly higher QT dispersion (58.5±9.9 versus 41.7±3.8; P<0.001), heart rate-corrected QT dispersion (62.5±10.0 versus 45.2±4.3; P<0.001) and P wave dispersion (46.9±4.8 versus 41.5±5.1; P<0.001). CONCLUSION: Increased QT dispersion, heart-rate corrected QT dispersion and P wave dispersion in major depressive disorder patients may be indicative of autonomic imbalance and increased risk of cardiac morbidity and mortality.

Serum Uric Acid to Albumin Ratio Can Predict Contrast-Induced Nephropathy in ST-Elevation Myocardial Infarction Patients Undergoing Primary Percutaneous Coronary Intervention.

Contrast-induced nephropathy (CIN) is one of the common complication of ST-elevation myocardial infarction (STEMI) following primary percutaneous coronary intervention (pPCI). Serum uric acid to albumin ratio (UAR) is a novel marker, which is associated with acute kidney injury in intensive care unit patients. We investigated the predictive value of UAR for the development of CIN in STEMI patients (n = 1379) after pPCI. The diagnosis of CIN was made based on an increase of basal creatinine levels >.5 mg/dL or 25% within 72 h after pPCI; 128 patients were in the CIN (+) group and 1251 patients were in the CIN (-) group. CIN (+) patients had higher serum uric acid (SUA), UAR, and lower albumin levels than CIN (-) patients. Age, diabetes, hypertension, hemoglobin, glucose at admission, basal creatinine, peak troponin I, total bilirubin, contrast volume/glomerular filtration rate, and UAR were independent predictors of CIN. A cutoff value of 1.62 for UAR detected CIN development with a sensitivity of 54% and specificity of 87.4%, and the discrimination ability of UAR was better than that of SUA or albumin. In conclusion, UAR was an independent predictor of the development of CIN.

The Relationship between Uric Acid/Albumin Ratio and Carotid Intima-Media Thickness in Patients with Hypertension. / A Relação entre a Relação Ácido Úrico/Albumina e a Espessura Média-Intimal da Carótida em Pacientes com Hipertensão.

BACKGROUND: Hypertension causes subendothelial inflammation and dysfunction in resulting atherosclerosis. Carotid intima-media thickness (CIMT) is a useful marker of endothelial dysfunction and atherosclerosis. The uric acid to albumin ratio (UAR) has emerged as a novel marker for predicting cardiovascular events. OBJECTIVE: We aimed to investigate the association of UAR with CIMT in hypertensive patients. METHODS: Two hundred sixteen consecutive hypertensive patients were enrolled in this prospective study. All patients underwent carotid ultrasonography to classify low (CIMT < 0.9 mm) and high (CIMT ≥ 0.9 mm) CIMT groups. The predictive ability of UAR for high CIMT was compared with systemic immune inflammation index (SII), neutrophil/lymphocyte ratio (NLR), platelet/lymphocyte ratio (PLR), and C-reactive protein/albumin ratio (CAR). A two-sided p-value <0.05 was accepted as statistically significant. RESULTS: Patients with high CIMT were older and had higher UAR, SII, NLR, and CAR than low CIMT. Age, UAR, SII, NLR, and CAR, but not PLR, were associated with high CIMT. In multivariable analysis, age, CRP, SII, and UAR were independent predictors of high CIMT. The discrimination ability of UAR was higher than uric acid, albumin, SII, NLR, and CAR, and UAR had a higher model fit than those variables. UAR had higher additive improvement in detecting high CIMT than other variables, as assessed with net-reclassification improvement, IDI, and C-statistics. UAR was also significantly correlated with CIMT. CONCLUSION: UAR might be used to predict high CIMT and might be useful for risk stratification in hypertensive patients.

FUNDAMENTO: A hipertensão causa inflamação subendotelial e disfunção na aterosclerose resultante. A espessura média-intimal da carótida (EMIC) é um marcador útil de disfunção endotelial e aterosclerose. A razão ácido úrico/albumina (RUA) emergiu como um novo marcador para prever eventos cardiovasculares. OBJETIVO: Nosso objetivo foi investigar a associação da RUA com a EIMC em pacientes hipertensos. MÉTODO: Duzentos e dezesseis pacientes hipertensos consecutivos foram incluídos neste estudo prospectivo. Todos os pacientes foram submetidos a ultrassonografia de carótida para classificar baixos (EMIC < 0,9 mm) e altos (EMIC≥0,9 mm) grupos de EMIC. A capacidade preditiva da RUA para EMIC alta foi comparada com o índice de inflamação imune sistêmica (IIS), razão neutrófilo/linfócito (RNL), razão plaqueta/linfócito (RPL) e razão proteína C reativa/albumina (RCA). Um valor de p bilateral <0,05 foi aceito como estatisticamente significativo. RESULTADOS: Os pacientes com EMIC alta eram mais velhos e tinham maior RUA, IIS, RNL e RCA do que baixo EMIC. Idade, RUA, IIS, RNL e RCA, mas não RPL, foram associados a EMIC alta. Na análise multivariada, idade, PCR, IIS e RUA foram preditores independentes de EMIC alta. A capacidade de discriminação de RUA foi maior do que ácido úrico, albumina, IIS, RNL e RCA, e RUA teve um ajuste de modelo maior do que essas variáveis. RUA teve maior melhoria aditiva na detecção de EMIC alta do que outras variáveis, conforme avaliado com melhoria de reclassificação líquida, MDI e estatísticas C. RUA também foi significativamente correlacionada com EMIC. CONCLUSÃO: RUA pode ser usado para prever EMIC alta e pode ser útil para estratificação de risco em pacientes hipertensos.

The association of serum uric acid/albumin ratio with the development of coronary collateral circulation in patients with chronic total occluded coronary arteries.

Introduction: Coronary collateral circulation (CCC) develops in chronic total occluded (CTO) vessels and protects the myocardium against ischemia in addition to the improvement of cardiac functions. Poor CCC is related to adverse cardiac events as well as poor prognosis. Serum uric acid/albumin ratio (UAR) has emerged as a novel marker associated with poor cardiovascular outcomes. We aimed to investigate whether there was an association between UAR and poor CCC in CTO patients. Methods: This study was comprised of 212 patients with CTO (92 with poor CCC and 120 with good CCC). All patients were graded based on Rentrop scores to poor CCC (Rentrop scores 0 and 1) and good CCC (Rentrop scores 2 and 3). Results: Poor CCC patients had higher frequencies of diabetes mellitus, triglyceride levels, Syntax and Gensini scores, uric acid, and UAR and lower lymphocyte, high-density lipoprotein cholesterol, and ejection fraction when compared to good CCC patients. UAR was an independent predictor of poor CCC in CTO patients. Furthermore, UAR had a better discriminative ability for patients with poor CCC from good CCC compared to serum uric acid and albumin. Conclusion: Based on the results of the study, the UAR could be used to detect poor CCC in CTO patients.

The Association of Serum Uric Acid/Albumin Ratio with No-Reflow in Patients with ST Elevation Myocardial Infarction.

The goal of this investigation was to explore the relationship between serum uric acid/albumin ratio (UAR) and no-reflow (NR) in ST elevation myocardial infarction (STEMI) patients (n = 838) who underwent primary percutaneous coronary intervention (pPCI). Angiographic NR was defined as thrombolysis in myocardial infarction (TIMI) flows 0, 1, and 2 in the absence of coronary spasm or dissection. NR developed in 91 (10.9%) STEMI patients. Patients with NR had higher UAR and according to multivariable logistic regression models, a high UAR was an independent risk factor for NR. The area under the curve (AUC) value of the UAR was .760 (95%CI: .720-.801) in a receiver-operating characteristics curve (ROC) assessment. Notably, the UAR AUC value was greater than that of its components: albumin (AUC: .642) and serum uric acid (AUC: .637) (P < .05 for both comparisons). The optimum UAR value in detecting NR in STEMI patients was >1.21 with a sensitivity of 82% and a specificity of 67%. This was the first study to report that the UAR was independently associated with NR in STEMI patients who underwent pPCI.