IntroductionCoronary slow flow (CSF) is an angiographic phenomenon characterised by the delay of distal vessel opacification in the absence of significant stenosis of the epicardial coronary arteries. Some of the factors playing a role in CSF pathophysiology are increased thrombogenic activity and inflammation.AimTo examine the relationship between platelet distribution width (PDW) and CSF.Material and methodsTaking into consideration the exclusion criteria, 136 patients with CSF and 152 patients with normal coronary angiographies (control group) were included in the study. The association between thrombolysis infarction frame count (TFC) in myocardial and laboratory and other clinical parameters were evaluated.ResultsThe stated parameters were significantly higher in the group with CSF than in the normal coronary angiography group (control group). The PDW (16.6 ±0.7 vs. 16.4 ±0.6, p = 0.002), neutrophil lymphocyte ratio (NLR) (3.1 ±3.4 vs. 2.4 ±1.1, p = 0.027), haemoglobin (Hb) (14.1 ±1.3 vs. 14.7 ±1.1, p < 0.001), and red cell distribution width (RDW) (13.6 ±0.7 vs. 14.1 ±2.8, p = 0.026) were significantly higher in the CSF group than in the control group. Moreover, our study showed that PDW > 16.15 and Hb > 1 3.75 were predictors of the presence of CSF with sensitivities of 83% and 73% and specificities of 40% and 42%, respectively.ConclusionsThis study has demonstrated that compared to normal coronary flow, PDW, Hb, NLR, and RDW are significantly higher in CSF patients. We believe that further studies are needed to clarify the role of PDW and Hb in patients with CSF.
Objective: Evaluation of the long-term effects of continuous positive airway presure (CPAP) on mean heart rate and left ventricular systolic and diastolic parameters in obstructive sleep apnea syndrome (OSAS) using conventional and tissue Doppler techniques. Methods: This prospective cohort study is designed to evaluate the long-term effects of CPAP treatments in normotensive OSAS patients. Initially 40 patients aged from eighteen to fifty five with documented OSAS syndrome were evaluated within one month of CPAP treatment. All had high self-reported compliance with treatment. From the latter, 21 patients with uninterrupted CPAP therapy (for at least 5 years, 5 hours per day) were included in the study and further evaluated with treatment. The left ventricular systolic function was assessed on apical four-chamber view using modified Simpson method and diastolic function was evaluated with classic transmitral pulsed and tissue Doppler techniques. Paired t test and Wilcoxon signed rank test had been used to compare the clinical and echocardiography data before and after treatment period. Results: A comparison of values assessed after one month and after 5 years of CPAP therapy, revealed a significant increase in the acceleration time(AT) Em/Am ratio and ejection time (ET) (AT: p=0.04; Em/Am ratio p=0.03 ET: p=0.04) while a significant decrease was observed on deceleration time (DT), isovolumetric relaxation time (IRT), myocardial performance index (MPI), mitral regurgitation (MR) and 24 hour mean heart rate (HR) in all subjects (DT: p=0.02; IVRT: p=0,04; MPI: p=0,01; MR: p≤0.001; HR: p=0.004). Conclusion: We observed a significant improvement in the left ventricular systolic and diastolic function and a significant decrease of 24-hour heart rate and mitral regurgitation with unchanged ejection fraction of the left ventricle with long-term CPAP treatment similar to short-term treatment studies. The long-term maintenance of the beneficial effect of CPAP throughout the 5 year long-term treatment can be one of the pathophysiologic mechanisms that may explain the decrease of cardiovascular mortality observed with long-term CPAP therapy in OSAS patients. (Anadolu Kardiyol Derg 2014; 14: 265-71)
Background: Malnutrition is very common in chronic kidney disease patients and it starts from predialytic stage. The purpose of our project is to investigate the relationship between volume and malnutrition. Materials and method: A total of 109 chronic kidney disease patients were included in the study. Three groups have been created in patients according to their subjective global assessment (SGA) and malnutrition situation; SGA A: well feed group, SGA B: mild to moderate malnutrition, SGA C: severe malnutrition. Anthropometric measurements of all patients have been made (Body mass index, mid arm circumference, mid arm muscle circumference, triceps skinfold thickness, biceps skinfold thickness). Albumin, total chlosterol, triglyceride, serum amino acid leves have evaluated in blood samples of all patients. 24 hour ambulatory blood pressure monitoring was made for all patients. Results: According to results average age of patients was 59.92 year and average GFR was 23.56 mL/min. 22.01 percent of patients was evaluated as SGA A and 77.98 percent of patients was evaluated as SGA B and C. We found negative correlation between albumin, body mass index, mid arm circumference, mid arm muscle circumference, triceps skinfold thickness measurements and SGA scores. At the same time a positive correlation was found between NTSBP (Night time systolic blood pressure) and SGA scores. Discussion: Malnutrition and hypervolemia are significant cardiovascular risk factors for chronic kidney disease patients. In this study we examine the relationship between malnutrition and hypervolemia in predialysis patients. This study was cross sectional and only ambulatory blood pressure measuring used as a volume parameter so cause and effect relationship between hypervolemia-malnutrition should not be inferred. This study should be taken into consideration because it's the first study that examines the relationship between ambulatory blood pressure and malnutrition in prediyalisis patients. Also our data shows statistically significant relationship between amino acid levels and blood pressure parameters and this study is the first reported data in this topic.
Background
Some of the drugs used for the treatment of coronavirus disease (COVID‐19) can increase the risk of corrected QT (QTc) interval prolongation, which may trigger arrhythmia or even death. Due to the low sensitivity of the reverse transcriptase‐polymerase chain reaction (RT‐PCR) test, chest computed tomography (CT) imaging is being used for COVID‐19 diagnostic correlation and to evaluate whether there is pneumonic involvement in the lung.
Objective
In this study, we aimed to investigate the correlation between lung changes on CT and QTc interval changes on ECG in non‐ICU patients with COVID‐19 who have a positive PCR test when using drugs that can prolong the QTc interval.
Methods
This was a single‐centre retrospective cohort study of hospitalized non‐ICU patients. The study included 344 patients (56.1% men) with a mean age of 46.34 ± 17.68 years. The patients were divided into four groups according to their chest CT results: those having typical, atypical, indeterminate, or no pneumonic involvement. The mean QTc intervals and heart rates calculated from electrocardiograms (ECG) during admission to the hospital and after the treatment were compared.
Results
No significant differences were found between the groups’ age, gender, and body mass index (BMI). In addition, no significant differences were found between the groups’ mean QTc interval values at admission (
P
:.127) or after the treatment (
P
:.205). The groups’ heart rate values were also similar, with no significant differences in the mean heart rate on admission (
P
:.648) and post‐treatment (
P
:.229) ECGs.
Conclusion
This study has demonstrated findings of COVID‐19 infection based on chest CT does not correlate with QT interval prolongation in non‐ICU COVID‐19 patients. There is a need for additional larger studies investigating the effect of chest CT findings on QT interval prolongation and bradycardia in COVID‐19 patients.
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