cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.7865555
title: An Overview of Care Changes in the Last 6 Year in Primary PCI in ST-Elevation Myocardial Infarction in a Tertiary University Brazilian Hospital

description: Abstract Background: Although new studies and guidelines can be considered useful tools, it does not necessarily mean they are put into clinical practice. Objective: The aim of the current analysis was to assess the changes in primary percutaneous coronary intervention (PCI) and mortality in a tertiary university hospital in southern Brazil during a six-year period. Methods: We have included consecutive patients with ST-elevation myocardial infarction (STEMI) who underwent primary PCI between March 2011 and February 2017. Previous clinical history, characteristics of the procedure, and reperfusion strategies were collected. In-hospital, short and long-term mortalities were also evaluated. The significance level adopted for all tests was 5%. Results: There was an increase in the use of radial access in patients from 20.0% in 2011 to 62.7% in 2016 (ptrend &lt; 0.0001). Moreover, thrombus aspiration decreased significantly from 66.7% in 2011 to less than 3.0% in 2016 (ptrend &lt; 0.0001). In-hospital, short and long-term mortalities remained reasonably stable from 2011 to 2016 (ptrend &gt; 0.05). However, a lower in-hospital mortality was observed in patients treated through radial access (p &lt; 0.001). Cardiogenic shock occurred in 11.1%, without statistical differences in the period (ptrend = 0.39), while long-term mortality rate decreased from 80.0% in 2011 to 27.3% in 2016 in this patient group (ptrend = 0.29). Conclusions: During a 6-year follow-up period, primary PCI characteristics underwent important modifications. Radial access became widely used, with a decrease in mortality with the use of this route, while aspiration thrombectomy became a rare procedure. The incidence of cardiogenic shock remained stable, but has shown a reduction in its mortality.
DOI: 10.6084/m9.figshare.7865555.v1
title: An Overview of Care Changes in the Last 6 Year in Primary PCI in ST-Elevation Myocardial Infarction in a Tertiary University Brazilian Hospital

description: Abstract Background: Although new studies and guidelines can be considered useful tools, it does not necessarily mean they are put into clinical practice. Objective: The aim of the current analysis was to assess the changes in primary percutaneous coronary intervention (PCI) and mortality in a tertiary university hospital in southern Brazil during a six-year period. Methods: We have included consecutive patients with ST-elevation myocardial infarction (STEMI) who underwent primary PCI between March 2011 and February 2017. Previous clinical history, characteristics of the procedure, and reperfusion strategies were collected. In-hospital, short and long-term mortalities were also evaluated. The significance level adopted for all tests was 5%. Results: There was an increase in the use of radial access in patients from 20.0% in 2011 to 62.7% in 2016 (ptrend &lt; 0.0001). Moreover, thrombus aspiration decreased significantly from 66.7% in 2011 to less than 3.0% in 2016 (ptrend &lt; 0.0001). In-hospital, short and long-term mortalities remained reasonably stable from 2011 to 2016 (ptrend &gt; 0.05). However, a lower in-hospital mortality was observed in patients treated through radial access (p &lt; 0.001). Cardiogenic shock occurred in 11.1%, without statistical differences in the period (ptrend = 0.39), while long-term mortality rate decreased from 80.0% in 2011 to 27.3% in 2016 in this patient group (ptrend = 0.29). Conclusions: During a 6-year follow-up period, primary PCI characteristics underwent important modifications. Radial access became widely used, with a decrease in mortality with the use of this route, while aspiration thrombectomy became a rare procedure. The incidence of cardiogenic shock remained stable, but has shown a reduction in its mortality.
DOI: 10.6084/m9.figshare.7865768.v1
title: Acuracy and Concordance of Anthropometric Indicators and Body Composition in Heart Failure

description: Abstract Background: Anabolic/catabolic disorder in heart failure (HF) favors cardiac cachexia, implying a reduction in HF survival. Objectives: To assess the accuracy and concordance of the diagnosis of protein malnutrition and excess fat among the anthropometric and body composition methods in individuals with HF. Method: A study of accuracy that included 60 individuals with HF. Body mass index (BMI), arm circumference (AC), triceps skinfold thickness (TST), adductor pollicis muscle thickness (APMT), arm muscle circumference (AMC) and corrected arm muscle area (cAMA). Fat free mass index (FFMI) and body fat percentage (BF%), obtained by electrical bioimpedance (EBI), were used to compare the diagnosis of protein malnutrition and excess fat. Accuracy was assessed by calculating sensitivity, specificity, positive and negative predictive value. The concordance of the EBI diagnosis and other methods was performed by the chi-square test and kappa (k) statistic, where p&lt;0.05 was considered significant. Results: Higher frequencies of protein malnutrition were identified by cAMA and AMC, and excess fat by BF%. BMI presented low sensitivity (43%) and accuracy (38.5%), with moderate concordance (0.50). AMC sensitivity was 86%, accuracy 66.4%, and acceptable concordance (0.36) compared to FFMI. Similar percentages of moderate sensitivity and low accuracy were observed for TST and BMI. Conclusion: AMC may be useful to identify protein malnutrition and TST has not been adequate to diagnose adiposity. BMI was not sensitive to assess muscle and adipose reserve. EBI was more accurate.
DOI: 10.6084/m9.figshare.7865672
title: Cardiac Magnetic Resonance and amyloidosis: Review

description: Abstract Amyloidosis is a disease caused by extracellular deposition of insoluble protein fibrils, that results in changes in tissue architecture and consequently modification of the organ structure. Cardiac involvement is common in amyloidosis. Two major types of systemic amyloidosis affect the myocardium - immunoglobulin light chain and transthyretin amyloidosis - each leading to different prognosis. Early detection and diagnosis of cardiac amyloidosis are the main objectives in the assessment of the disease. New techniques of magnetic resonance imaging have minimized the need for biopsies for the diagnosis. Late gadolinium enhancement technique, and more recently T1 mapping, have allowed a simplified evaluation of amyloid deposits and extracellular volume. The aim of this review was to describe basic concepts and updates of the use of magnetic resonance imaging for the diagnosis amyloidosis and evaluation of its severity.
DOI: 10.6084/m9.figshare.7865672.v1
title: Cardiac Magnetic Resonance and amyloidosis: Review

description: Abstract Amyloidosis is a disease caused by extracellular deposition of insoluble protein fibrils, that results in changes in tissue architecture and consequently modification of the organ structure. Cardiac involvement is common in amyloidosis. Two major types of systemic amyloidosis affect the myocardium - immunoglobulin light chain and transthyretin amyloidosis - each leading to different prognosis. Early detection and diagnosis of cardiac amyloidosis are the main objectives in the assessment of the disease. New techniques of magnetic resonance imaging have minimized the need for biopsies for the diagnosis. Late gadolinium enhancement technique, and more recently T1 mapping, have allowed a simplified evaluation of amyloid deposits and extracellular volume. The aim of this review was to describe basic concepts and updates of the use of magnetic resonance imaging for the diagnosis amyloidosis and evaluation of its severity.
DOI: 10.6084/m9.figshare.7866119
title: Risk Factor Differences in Acute Myocardial Infarction between Young and Older People: A Systematic Review and Meta-Analysis

description: Abstract Acute myocardial infarction (AMI) is less frequent in young individuals (≤ 45 years) than in older ones (&gt; 45 years). Young AMI patients differ from older AMI patients in different ways. This article aims to assess the differences between young and older AMI patients. A search was made in the database of Cochrane Library, PubMed, BioMed Central and Embase, sence their establishment to December 2016, using the key words: risk factors, clinical characteristics, acute myocardial infarction and young. Meta-analysis was performed by using the Review Manager 5.3 software, pooled odds ratios and 95% confidence intervals were used to assess the strength of differences. Eight studies with fairly quality, enrolling 13,358 patients in the analysis. Compared with older AMI patients, young AMI patients had a higher rate of smoking and obesity (OR = 2.71,95%CI:1.87 to 3.92; OR = 1.76,95%CI:1.13 to 2.74), higher rate of family history of coronary artery disease and alcohol consumption (OR = 2.36,95%CI:1.22 to 4.59; OR = 1.76,95%CI:1.04 to 2.97). Moreover, Young AMI patients had a lower rate of hypertension and diabetes mellitus (OR = 0.52,95%CI:0.37 to 0.73; OR = 0.58,95%CI:0.50 to 0.67). No significant differences were observed in hyperlipidemia, a subgroup data-analysis showed a higher total cholesterol, triglyceride lipase, and low-density lipoprotein levels (p &lt; 0.05), and lower levels of high-density lipoprotein (p &lt; 0.01) in young AMI patients. Smoking, family history of coronary artery disease, obesity and alcohol consumption are the most main risk factors of AMI among young individuals, and young AMI patients have better prognosis than older ones.
DOI: 10.6084/m9.figshare.7866119.v1
title: Risk Factor Differences in Acute Myocardial Infarction between Young and Older People: A Systematic Review and Meta-Analysis

description: Abstract Acute myocardial infarction (AMI) is less frequent in young individuals (≤ 45 years) than in older ones (&gt; 45 years). Young AMI patients differ from older AMI patients in different ways. This article aims to assess the differences between young and older AMI patients. A search was made in the database of Cochrane Library, PubMed, BioMed Central and Embase, sence their establishment to December 2016, using the key words: risk factors, clinical characteristics, acute myocardial infarction and young. Meta-analysis was performed by using the Review Manager 5.3 software, pooled odds ratios and 95% confidence intervals were used to assess the strength of differences. Eight studies with fairly quality, enrolling 13,358 patients in the analysis. Compared with older AMI patients, young AMI patients had a higher rate of smoking and obesity (OR = 2.71,95%CI:1.87 to 3.92; OR = 1.76,95%CI:1.13 to 2.74), higher rate of family history of coronary artery disease and alcohol consumption (OR = 2.36,95%CI:1.22 to 4.59; OR = 1.76,95%CI:1.04 to 2.97). Moreover, Young AMI patients had a lower rate of hypertension and diabetes mellitus (OR = 0.52,95%CI:0.37 to 0.73; OR = 0.58,95%CI:0.50 to 0.67). No significant differences were observed in hyperlipidemia, a subgroup data-analysis showed a higher total cholesterol, triglyceride lipase, and low-density lipoprotein levels (p &lt; 0.05), and lower levels of high-density lipoprotein (p &lt; 0.01) in young AMI patients. Smoking, family history of coronary artery disease, obesity and alcohol consumption are the most main risk factors of AMI among young individuals, and young AMI patients have better prognosis than older ones.
DOI: 10.6084/m9.figshare.8163005
title: Clinical Course of Patients Undergoing Myocardial Revascularization Surgery in a Public Cardiology Referral Hospital in Pará, Brazil

description: Abstract Background: Myocardial revascularization surgery (MRS) is the most frequently performed cardiac surgery in Brazil. However, data on mortality rates among patients undergoing MRS in hospitals other than the main referral centers in the northern Brazil are scarce. Objective: To describe the clinical course of patients that submitted to MRS in the major public cardiology referral hospital in the Brazilian Amazon. Methods: Retrospective cohort analysis, by review of medical records of patients who had undergone MRS at Hospital das Clínicas Gaspar Vianna (FHCGV) from January 2013 to June 2014. Results: A total of 179 patients were evaluated. Mortality rate was 11.7% until 30 days after surgery. Waiting time for surgery ≥ 30 days (OR 2.59, 95%CI 1.02 - 6.56, p = 0.039), infection during hospitalization (OR 3.28, 95%CI 1.15 - 9.39, p = 0.021) and need for hemodialysis after surgery (OR 9.06 95%CI 2.07 - 39.54, p = 0.001) were predictors of mortality after CABG. Conclusion: A high mortality rate in the study population was found, higher than that reported in the literature and in other regions of Brazil.
DOI: 10.6084/m9.figshare.8163005.v1
title: Clinical Course of Patients Undergoing Myocardial Revascularization Surgery in a Public Cardiology Referral Hospital in Pará, Brazil

description: Abstract Background: Myocardial revascularization surgery (MRS) is the most frequently performed cardiac surgery in Brazil. However, data on mortality rates among patients undergoing MRS in hospitals other than the main referral centers in the northern Brazil are scarce. Objective: To describe the clinical course of patients that submitted to MRS in the major public cardiology referral hospital in the Brazilian Amazon. Methods: Retrospective cohort analysis, by review of medical records of patients who had undergone MRS at Hospital das Clínicas Gaspar Vianna (FHCGV) from January 2013 to June 2014. Results: A total of 179 patients were evaluated. Mortality rate was 11.7% until 30 days after surgery. Waiting time for surgery ≥ 30 days (OR 2.59, 95%CI 1.02 - 6.56, p = 0.039), infection during hospitalization (OR 3.28, 95%CI 1.15 - 9.39, p = 0.021) and need for hemodialysis after surgery (OR 9.06 95%CI 2.07 - 39.54, p = 0.001) were predictors of mortality after CABG. Conclusion: A high mortality rate in the study population was found, higher than that reported in the literature and in other regions of Brazil.
DOI: 10.6084/m9.figshare.8162432
title: Antioxidant and Vasodilatory Action of Grape Juices Produced in Different Regions of Brazil

description: Abstract Background: Grapes and its derivatives (wines and juices) are rich in polyphenols that have high antioxidant and vasodilator capacity. These biological activities may vary in the juices marketed and produced in different regions of Brazil. Objectives: To determine the antioxidant and vasorelaxant effects of grape juice samples produced in different regions of Brazil. Methods: The content of phenolic compounds and antioxidant capacity were evaluated by the methods of Folin-Ciocalteau, DPPH, ABTS and a new electroanalytical approach (differential pulse voltammetry - DPV). Vasodilator effects were analyzed in isolated aorta from rats in an organ bath. Results: The samples from RJ and SP presented respectively the higher and lower phenolic content and also antioxidant capacity by the methods used (ABTS and DPPH). The results of the electrochemical index corroborate to the other tests, with the best results to RJ (21.69 ± 3.15 µA/V) and worse to the SP sample (11.30 ± 0.52 µA/V). In the vascular reactivity studies, the relaxation induced by each sample presented more distinct differences, following the order: RJ (87.9 ± 4.8%) &gt; RS1 (71.6 ± 8.6%) &gt; GO (56.2 ± 7.2%) &gt; SP (39.9 ± 7.8%) &gt; PR (39.4 ± 9.5%) &gt; RS2 (19.5 ± 6.2%). Inhibition of endothelial NO practically abolished (p &lt; 0.001) the relaxation for all samples, except one. Conclusion: The phenolic content and antioxidant capacity vary greatly among samples. The results obtained for the order of antioxidant activity were: RJ &gt; RS1 &gt; GO &gt; RS2 &gt; PR &gt; SP. The juices were able to induce vascular relaxation at quite varied levels, and the RJ sample the most effective. The L-NAME practically blocked all samples except one (RS2).
DOI: 10.6084/m9.figshare.8162432.v1
title: Antioxidant and Vasodilatory Action of Grape Juices Produced in Different Regions of Brazil

description: Abstract Background: Grapes and its derivatives (wines and juices) are rich in polyphenols that have high antioxidant and vasodilator capacity. These biological activities may vary in the juices marketed and produced in different regions of Brazil. Objectives: To determine the antioxidant and vasorelaxant effects of grape juice samples produced in different regions of Brazil. Methods: The content of phenolic compounds and antioxidant capacity were evaluated by the methods of Folin-Ciocalteau, DPPH, ABTS and a new electroanalytical approach (differential pulse voltammetry - DPV). Vasodilator effects were analyzed in isolated aorta from rats in an organ bath. Results: The samples from RJ and SP presented respectively the higher and lower phenolic content and also antioxidant capacity by the methods used (ABTS and DPPH). The results of the electrochemical index corroborate to the other tests, with the best results to RJ (21.69 ± 3.15 µA/V) and worse to the SP sample (11.30 ± 0.52 µA/V). In the vascular reactivity studies, the relaxation induced by each sample presented more distinct differences, following the order: RJ (87.9 ± 4.8%) &gt; RS1 (71.6 ± 8.6%) &gt; GO (56.2 ± 7.2%) &gt; SP (39.9 ± 7.8%) &gt; PR (39.4 ± 9.5%) &gt; RS2 (19.5 ± 6.2%). Inhibition of endothelial NO practically abolished (p &lt; 0.001) the relaxation for all samples, except one. Conclusion: The phenolic content and antioxidant capacity vary greatly among samples. The results obtained for the order of antioxidant activity were: RJ &gt; RS1 &gt; GO &gt; RS2 &gt; PR &gt; SP. The juices were able to induce vascular relaxation at quite varied levels, and the RJ sample the most effective. The L-NAME practically blocked all samples except one (RS2).
DOI: 10.6084/m9.figshare.8162804
title: Effect of Short-Term Inhalation of The Herbicide 2,4D on Cardiac Remodeling: Morphological Aspects

description: Abstract Background: Brazil is the worldwide leader in the long-term use of pesticides and herbicides. This compromises the health of handlers by causing harmful neurological, respiratory, and cardiovascular changes. The herbicide 2.4D has been shown to cause cardiac overload with subsequent pathological remodeling. Objective: To analyze the cardiac morphological repercussions on the left ventricle (LV) of mice submitted to nebulization by the herbicide 2.4D. Methods: Fifteen mice were divided into three groups: control group (CG; n = 5) exposed to nebulization with sodium chloride solution; low concentration group (LCG; n = 5) exposed to nebulization of the herbicide 2.4D with 3.71 x 10-3 grams; and high concentration group (HCG; n = 5) exposed to nebulization of the herbicide 2.4D with 9.28 x 10-3 grams for 15 minutes. The fractal dimension analysis was performed through the box-counting method. Later, the ImageJ program was used to calculate the fractal dimension of each group. To evaluate cardiac remodeling, histological slides were prepared and stained with Hematoxylin-Eosin (HE). Fifty areas of cardiomyocytes were analyzed per animal. The comparisons between groups were performed by ANOVA One-Way with Tukey’s posttest (p &lt; 0.05). Results: There was no change in fractal dimension values between the CG = 1.37 ± 0.02, LCG = 1.33 ± 0.04 and the HCG = 1.33 ± 0.07 groups. However, cardiac hypertrophy occurred in the HCG = 303.9 ± 38.80 µm(2) when compared to the CG group = 236.9 ± 61.71 µm(2) (p = 0.034). Conclusion: The herbicide 2.4D used for 72 hours did not promote cardiotoxicity when evaluated by fractal dimension. However, cardiomyocyte hypertrophy was observed in the LV.
DOI: 10.6084/m9.figshare.8162804.v1
title: Effect of Short-Term Inhalation of The Herbicide 2,4D on Cardiac Remodeling: Morphological Aspects

description: Abstract Background: Brazil is the worldwide leader in the long-term use of pesticides and herbicides. This compromises the health of handlers by causing harmful neurological, respiratory, and cardiovascular changes. The herbicide 2.4D has been shown to cause cardiac overload with subsequent pathological remodeling. Objective: To analyze the cardiac morphological repercussions on the left ventricle (LV) of mice submitted to nebulization by the herbicide 2.4D. Methods: Fifteen mice were divided into three groups: control group (CG; n = 5) exposed to nebulization with sodium chloride solution; low concentration group (LCG; n = 5) exposed to nebulization of the herbicide 2.4D with 3.71 x 10-3 grams; and high concentration group (HCG; n = 5) exposed to nebulization of the herbicide 2.4D with 9.28 x 10-3 grams for 15 minutes. The fractal dimension analysis was performed through the box-counting method. Later, the ImageJ program was used to calculate the fractal dimension of each group. To evaluate cardiac remodeling, histological slides were prepared and stained with Hematoxylin-Eosin (HE). Fifty areas of cardiomyocytes were analyzed per animal. The comparisons between groups were performed by ANOVA One-Way with Tukey’s posttest (p &lt; 0.05). Results: There was no change in fractal dimension values between the CG = 1.37 ± 0.02, LCG = 1.33 ± 0.04 and the HCG = 1.33 ± 0.07 groups. However, cardiac hypertrophy occurred in the HCG = 303.9 ± 38.80 µm(2) when compared to the CG group = 236.9 ± 61.71 µm(2) (p = 0.034). Conclusion: The herbicide 2.4D used for 72 hours did not promote cardiotoxicity when evaluated by fractal dimension. However, cardiomyocyte hypertrophy was observed in the LV.
DOI: 10.6084/m9.figshare.8163056
title: Adductor Pollicis Muscle Thickness as a Marker of Nutritional Status in Heart Failure

description: Abstract Background: Malnutrition is associated with morbidity and mortality in patients with heart failure (HF). Thus, it is essential to apply reliable indicators to assess the nutritional status of these individuals. Objective: To evaluate the thickness of the adductor pollicis muscle (APM) in patients with HF as an indicator of somatic protein status and correlate the obtained values with conventionally used parameters and electrical bioimpedance (EBI) markers. Methods: Cross-sectional study with patients with HF undergoing regular outpatient treatment. APM thickness was measured in the dominant arm, and the values obtained were classified according to gender and age. The anthropometric parameters assessed included the body mass index (BMI) and specific parameters to assess the muscle (arm muscle circumference [AMC] and arm muscle area [AMA]). Values of phase angle (PA), standard PA (SPA), and lean mass were obtained by EBI. Statistical analyses were performed with the software Statistical Package for the Social Sciences, version 19, using unpaired Student’s t, Mann-Whitney, or one-way analysis of variance (ANOVA) tests for comparisons between groups, as appropriate. The correlation between variables of interest was performed using Pearson’s or Spearman’s correlation coefficient, as adequate. The level of significance was set at 5%. Results: About 70% of the 74 patients evaluated were classified as malnourished according to the APM thickness. Values of AMC, AMA, and lean mass correlated positively with APM thickness (p &lt; 0.005). The APM thickness also correlated positively with PA and SPA (r = 0.49, p &lt; 0.001 and r = 0.31, p = 0.008, respectively). Conclusion: Patients with HF presented a high frequency of protein malnutrition when APM thickness was used as an indicator of nutritional status. APM thickness values correlated with conventional measures of somatic protein evaluation and may be related to the prognosis of these patients, since they correlated positively with PA and SPA.