Extração de informação de ficheiros de log Utilizando programação Python e a ferramenta Tableau

Application servers generate daily log files with a significant part of their activity. This information is recorded sequentially over time but mixes various types of information. The absence of a standard for formatting the data record and the respective volume, make it difficult to extract the corresponding information. The lack of work, specifically in the treatment of SOA server log files, did not allow the comparisson with pre-existing Key Performance Indicators (KPI) or a set of best practices that could be followed. This work results in a description of the process that can serve as a guide for: definition of a logging structure; construction of a data extraction process; definition of a data structure to support the extracted information; definition of control metrics; definition of analysis and control processes for the extracted data.. Given the size of the files and the diversity of types of information that existed, it was necessary to use Python programming for data extraction and pre-treatment, Excel for data pre-treatment, Tableau for statistical treatment and presentation of results.info:eu-repo/semantics/acceptedVersio

Atypical form of acute myocardial infarction with tamponade

Published on behalf of the European Society of Cardiology. All rights reserved. © The Author 2019.Background: Nowadays it is well recognized that the absence of obstructive coronary artery disease in a patient presenting with symptoms suggestive of ischemia and ST-segment alterations does not preclude an atherothrombotic etiology. CMR is an essential method for the investigation of Myocardial infarction (MI) with non obstructive coronary artery disease (MINOCA). Clinical Case: A 66 years-old female patient was referred after an episode of acute oppressive chest pain, nausea and hypersudorese, followed by syncope. She had a previous medical history of rheumatoid arthritis, under immunosuppression, occlusion of the cilioretinal artery, hypertension and dyslipidemia. On admission she was hypotensive (80/60mmHg). The ECG showed sinus rhythm and mild ST depression in V2-V3 leads, and the echocardiogram a small circumferential pericardial effusion (10mm) with signs of hemodynamic compromise. The blood tests documented a slight leukocytosis and an elevated troponin (hs-TnT 619ng/L).info:eu-repo/semantics/publishedVersio

Perfis de doentes hospitalizados com doença cardíaca valvular : experiência de um centro terciário

© 2018 Sociedade Portuguesa de Cardiologia. Published by Elsevier España, S.L.U. This is an open access article under the CC-BY-NC-ND license.Introduction: Valvular heart disease (VHD) is increasing worldwide, mostly because of aging. Percutaneous valve intervention is the preferred therapeutic option in high-risk patients. Objective: To characterize the profiles of patients with VHD admitted to the cardiology ward at a tertiary referral center. Methods: On the basis of ICD-9 codes for VHD, the discharge notes of 287 patients hospitalized over a 22-month period were reviewed and analyzed. One hundred characteristics were considered. Results: Median age was 74 (23-93) years, and 145 (51%) were male. The admissions were elective (for valve intervention) in 36%. Heart failure (HF) was the reason for urgent admissions in 29.3%. Multiple comorbidities were observed in 53% of patients. Etiology of VHD was degenerative in 68%, functional in 15.3% and rheumatic (predominantly in women and younger patients) in 8.7%. Aortic valve disease was present in 63% (aortic stenosis in 56%), and was associated with HF (p=0.004), atrial fibrillation (AF) (p=0.01), and left ventricular (LV) dilatation (p=0.003) or hypertrophy (p<0.001). Mitral valve disease (51%), mostly mitral regurgitation (degenerative or functional), predominated in women, and was associated with HF, AF, LV dilatation (p<0.001) and reduced LV ejection fraction (p=0.003). Significant tricuspid regurgitation (34.8%) associated with the presence of previously implanted cardiac devices (p<0.001). Valve intervention (mostly transcatheter aortic valve implantation) was performed in 41% of patients. Mean length of hospital stay was 12±14.3 days and overall in-hospital mortality was 9.8%.info:eu-repo/semantics/publishedVersio

Comparison of 5 acute pulmonary embolism mortality risk scores in patients with COVID-19

© The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)Objective: Pulmonary embolism (PE) is a common complication of SARS-CoV-2 infection. We aimed to explore the short-term outcomes among patients with acute PE and COVID-19 and to further determine and compare the performance of the different prognostic scores (PESI, sPESI, BOVA, FAST and ESC scores) for risk-stratification in this scenario. Methods: Retrospective single-centre study of 85 patients with SARS-CoV-2 infection and PE admitted to the Emergency Department (ED). The diagnostic accuracy of each above-mentioned prognostic score was calculated post hoc, and their discriminative power was evaluated through an AUC curve. Results: Among the 85 patients, all-cause death occurred within 7 days for 6 patients (7.1%) and within 30 days for 14 patients (16.5%). Despite being older and having a higher percentage of altered mental status on presentation, non-survivors patients did not differ from survivors regarding comorbidities, traditional risk factors for venous thromboembolism and signs and symptoms at the ED presentation.Each risk stratification tool had modest discriminative power for 7-day mortality (AUC range, 0.601-0.730) with slightly lower discrimination for 30-day mortality (AUC range, 0.543-0.638). The pair-wise comparison of ROC curves showed that PESI had better predictive value for short-term mortality than ESC score (z test = 3.92, p = 0.001) and sPESI (z test = 2.43, p = 0.015); there is no significant difference between PESI and BOVA score (z test = 1.05, p = 0.295) and FAST score (z test = 0.986, p = 0.324). Conclusion: The most common risk-stratification tools for PE had modest discriminative power to predict short-term mortality in patients with acute PE and COVID-19.info:eu-repo/semantics/publishedVersio

Computer vision application for improved product traceability in the granite manufacturing industry

The traceability of granite blocks consists in identifying each block with a finite number of colour bands that represent a numerical code. This code has to be read several times throughout the manufacturing process, but its accuracy is subject to human errors, leading to cause faults in the traceability system. A computer vision system is presented to address this problem through colour detection and the decryption of the associated code. The system developed makes use of colour space transformations and various thresholds for the isolation of the colours. Computer vision methods are implemented, along with contour detection procedures for colour identification. Lastly, the analysis of geometrical features is used to decrypt the colour code captured. The proposed algorithm is trained on a set of 109 pictures taken in different environmental conditions and validated on a set of 21 images. The outcome shows promising results with an accuracy rate of 75.00% in the validation process. Therefore, the application presented can help employees reduce the number of mistakes in product tracking

Rapidly progressive coronary aneurysm: a rare case of isolated coronary vasculitis with recurrent myocardial infarction

© 2022 The Authors. Published by Elsevier on behalf of the American College of Cardiology Foundation. This article is available under the Creative Commons CC-BY-NC-ND license and permits non-commercial use of the work as published, without adaptation or alteration provided the work is fully attributed.Isolated coronary arteritis without systemic involvement in adults is exceedingly rare. A 60-year-old patient developed recurrent non–ST-segment elevation myocardial infarctions for 1 year. After an initial coronary angiogram that was normal, serial angiograms showed de novo aneurysm formation. The patient responded favorably to corticosteroids, supporting the diagnosis of isolated coronary arteritis.info:eu-repo/semantics/publishedVersio

An unusual cause of myocardial infarction

Copyright © 2019 European Society of CardiologyBackground: In order to direct the treatment it, is well established that is fundamental to clarify the aetiology of heart failure and the cause of myocardial infarction (MI) with non obstructive coronary artery disease (MINOCA), with CMR being one of the methods of choice in both clinical situations. Case report: A 70 years-old male patient was admitted in our emergency department with complaints of irregular palpitations, progressive dyspnoea and fatigue on exertion, with two weeks of evolution; these symptoms were associated to retrosternal chest pain in the last twelve hours. He had a previous medical history of dyslipidemia, no other cardiovascular risk factors were known. On admission, his heart rate was 130bpm, with an irregularly irregular pulse and the pulmonary auscultation revealed bibasal crackles. The remaining physical examination was unremarkable. The ECG showed an atrial fibrillation rhythm, with a mild ST elevation and T wave inversion in inferior leads. The echocardiogram revealed a diffuse hypokinesia of left ventricle with an ejection fraction of 35-40%. The lab tests documented an elevation of troponin (hs-TnT 210ng/L) and NTproBNP (1945pg/ml). The coronary angiogram showed no lesions.info:eu-repo/semantics/publishedVersio

Left ventricular systolic dysfunction in Marfan syndrome is related to aortic distensibility

Published on behalf of the European Society of Cardiology. All rights reserved. © The Author 2019.Background: The cardiovascular involvement in Marfan syndrome (MS) is characterized mainly by dilatation and reduced distensibility of the ascending aorta. Left ventricular (LV) dysfunction has been detected in MS and a primary cardiomyopathy has been suggested but the pathophysiology is unclear. The purpose of this study was to evaluate the LV function in patients with MS and to assess the relationship with the aortic distensibility, as possible underlying mechanism. Methods: We studied 53 patients with MS (27.0 ± 11 years, 29 men) without valvular or hypertensive heart disease and a control group of 26 healthy subjects (29 ± 9 years, 17 men). All underwent echocardiography and cardiac magnetic resonance (CMR) and the following indexes were analyzed: a) Echo: mitral flow velocities E/A ratio and deceleration of mitral E; E’ velocity obtained from the medial and lateral mitral ring; E/E’ ratio b) CMR: LV volumes indexed to BSA and ejection fraction (EF); global longitudinal strain (GLS, Circle cvI42); maximal size and distensibility of proximal ascending aorta. Distensibility was calculated from maximal (systolic) and minimum (diastolic) area of maximal proximal ascending aorta (cross-sectional images from SSFP sequence) using the formula=(maximum area-minimum area)/[ minimum area x (systolic BP-diastolic BP)]. Results: 17 from 53 patients with MS had increased LV end-diastolic volume, 14 decreased EF (<50%) and 22 decreased GLS. Compared with the control group, patients with MS showed increased LV end-diastolic volume (85.0 ± 5.2vs 80.1 ± 5.3ml/m2, p = 0.04), lower GLS (17.1 ± 1.9 vs 18.9 ± 2.2, p = 0.01) lower LVEF (53.0 ± 7.1% vs 56.0 ± 5.4%, p = 0.03) and higher E/E’ value (9.2 ± 1.3 vs. 6.2 ± 0.8, p = 0.01) as well as larger dimensions of proximal aorta (39 ± 2.2cm vs 32 ± 0.8,p = 0.010) and lower aortic distensibility (3.4 ± 1.9 vs. 4.4 ± 1.7 dynes cm-1, p = 0.03). In the group of patients, a correlation was found between the aortic distensibility and the LVEF (r = 0.47, p = 0.045) and GLS (r = 0.65, p = 0.02), but not with the other variables. Aortic distensibility was an independent predictor of LV dysfunction using a cutoff of 50% for LVEF and 19% for GLS. Conclusion: In our population of patients with MS, we found changes in the LV function, which were related with aortic distensibility, possibly sharing a common pathway. The prognostic significance of these findings is under evaluation.info:eu-repo/semantics/publishedVersio

Comportamiento adherente del hormigón autocompactante en transmisión y anclaje

Self-compacting concretes (SCC) provide solutions to the problems facing precast concrete construction, enhancing competitiveness, reducing turnaround times and improving final product quality. SCC is fast becoming a key product for the future development of the precast pre-stressed concrete industry.The present paper compares the bond performance of SCC and traditional concrete (TC). The bond performance results confirm the viability of SCC in precast pre-stressed concrete manufacture, despite a slightly higher loss of pre-stressing force and slightly greater anchorage lengths in SCC with a low water/cement ratio. No differences in transfer or anchorage length were detected,however, when high strength TC and SCC were compared. The ECADA test method proved to be well suited to detecting the differences between the concretes analyzed.El desarrollo de los hormigones autocompactantes (SCC)ofrece muchas posibilidades a las construcciones con hormigón prefabricado, aumentando su competitividad, reduciéndolos plazos de fabricación y ofreciendo mejoras en la calidad del producto final. El SCC se está convirtiendo en un producto clave para el futuro desarrollo de la industria de prefabricados de hormigón pretensado.En este estudio se compara el comportamiento adherente de los SCC con el de los hormigones tradicionales (TC) actuales. Los resultados obtenidos confirman la viabilidad del uso de los SCC para la fabricación de elementos prefabricados con hormigón pretensado, en lo relativo a su comportamiento adherente, aunque con la necesidad de considerar unas pérdidas de pretensado ligeramente mayores. Asimismo,debe esperarse un ligero aumento de las longitudes de anclaje cuando se trabaje con SCC de baja relación agua/cemento. Sin embargo, no se han detectado diferencias de comportamiento entre ambos tipos de hormigón cuando la resistencia a compresión es alta en lo relativo a las longitudes de transmisión y anclaje. El método de ensayo ECADA muestra una buena adecuación para detectar las diferencias de comportamiento entre los hormigones analizado

Utility of pace-matching mapping in the ablation of idiopathic ventricular tachyarrhythmias

Published on behalf of the European Society of Cardiology. All rights reserved. © The Author 2017.Introduction: The electroanatomical mapping of idiopathic ventricular tachyarrhythmias (iVT) - premature ventricular contractions (PVC) and idiopathic ventricular tachycardia (VT) - is dependent on the recording of spontaneous PVC or induction of the clinical VT during the procedure to obtain the iVT activation map. The presence of infrequent and non-inducible iVT may preclude ablation. Pace-matching (PM) mapping of the anatomical region on interest, using the PaSo™ algorithm, may allow to circumvent this limitation. Purpose: Determination of the utility of the PaSo™pace-matching mapping for iVT ablation Methods: A single-center retrospective study was made, with inclusion of consecutive patients undergoing iVT ablation between October 2013 and October 2016. It was collected electroanatomical data, including the highest correlation obtained by PM (PaSo™). Success of the procedure was assessed (defined as the elimination of spontaneous PVC during the electrophysiological study and non-inducible iVT at the end) and the ability of the PaSo™ pace-matching mapping to guide effective ablation was determined. Results: 29 patients were studied (62.1% women, mean age 52.8±14.7 years). 65.5% presented symptomatic frequent PVC and 34.5% VT. The most frequent anatomic origin was the right ventricular outflow tract (58.6%), followed by the left coronary cusp (20.7%), mitro-aortic continuity (13.8%) and papillary muscles (6.9%). The ablation was successful (PVC elimination during the procedure) in 75.9% of the cases. In 79.3% of the cases it was possible to obtain an activation map; in 20.7% (6 cases) it was only possible to obtain a pace-matching map, because ocurred suppression of PVC during the procedure, and success was achieved in 5 of these cases. There was no relationship between success and anatomical region of origin of the iVT. The mean value of the better pace-matching correlation was 94.45% ± 3.95%, being significantly higher when the zone of interest was located in the right ventricle (95.71±3.23 vs. 92.68±4.3, p=0.04). There was a positive and significant association between the PaSo™ correlation value and success (r=0.554; p=0.007). Significantly higher correlations were observed in successful ablations [95.9% vs 92%; p=0.006), and the PaSo™ correlation value was a good predictor of success (AUC: 0.874, 95% CI 0.74–1.0, p=0.003). The pace-matching threshold of 93.55% predicted ablation success with 86.4% sensitivity and 85.7% specificity. Conclusion: In patients with iVT, pace-matching mapping provides a suitable method for performing ablation procedure, and it is essential in patients where spontaneous suppression of PVC occurs during the procedure. The achievement of a pace-matching correlation>93.55% conveniently identifies the dysrhythmic focus, allowing increasing of ablation success.info:eu-repo/semantics/publishedVersio