Publications by authors named "Tiago Henriques-Coelho"

New Findings: What is the central question of this study? Does the consumption of a moderate amount of alcohol differentially impact the heart ventricles and pulmonary vasculature. What is the main finding and its importance? Moderate alcohol consumption for a short period of time impaired pulmonary vascular cellular renewal through an apoptosis resistance pattern that ultimately affected the right ventricular function and structure. These findings support the need for a deeper understanding of effects of moderate alcohol consumption on the overall cardiovascular and pulmonary systems.

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Background: Despite pulmonary arterial hypertension (PAH) directly affects the right ventricle (RV), important structural, functional, and molecular changes also occur in left ventricle (LV). The objective of our study was to analyze the hypothetical cardioprotective effects of exercise preconditioning on LV in rats with monocrotaline (MCT)-induced PAH.

Methods: Forty male Wistar rats were randomly separated in sedentary (SED) and trained group (EX; running sessions of 60 min/day, 5 days/wk, at 25 m/min, for 4 weeks).

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Polyphenols present in some alcoholic beverages have been linked to beneficial effects in preventing cardiovascular diseases. Polyphenols found in beer with anti-proliferative and anti-cancer properties are appealing in the context of the quasi-malignant phenotype of pulmonary arterial hypertension (PAH). Our purpose was to evaluate if the chronic ingestion of a xanthohumol-fortified beer (FB) would be able to modulate the pathophysiology of experimental PAH.

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Background: Sigmoid volvulus is a rare condition in children. Early diagnosis increases the success of nonsurgical treatment in the emergency department, but posterior elective surgery is important due to the risk of recurrence.

Methods/conclusions: We present the case of a healthy 16-year-old girl with recurrent volvulus and successful endoscopic treatment followed by elective surgery.

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Abdominal aortic aneurysm (AAA) remains a relevant cause of mortality in Western countries. There is a need for continuous identification of risk factors for aneurysmal progression and predictors of treatment response to optimize the therapeutic strategy to be offered to these patients. Vascular calcification has been studied in several capillary beds as a cardiovascular risk factor.

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Objectives: Perivascular adipose tissue (PVAT) is currently seen as a paracrine organ that produces vasoactive substances, including inflammatory agents, which may have an impact on the vasculature. In this study PVAT density was quantified in patients with an aortic aneurysm and compared with those with a non-dilated aorta. Since chronic inflammation, as the pathway to medial thinning, is a hallmark of abdominal aortic aneurysms (AAAs), it was hypothesised that PVAT density is higher in AAA patients.

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Article Synopsis
  • Reusing multiple-choice questions in pediatric clerkship exams led to an item-sharing problem among medical students, influencing their scores.
  • A three-year study showed that scores were significantly affected by question repetition, with scores decreasing in years where questions weren't reused and assessments were reviewed later.
  • The findings suggest that altering question reuse policies and test timing can effectively mitigate biases in student assessments.
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Background: The main objective of this study was to assess the correlation between three semiquantitative and one computerized method based on Agatston Score (AS), when measuring abdominal aortic calcification (AAC) in abdominal aortic aneurysm (AAA) patients. Secondary aim was to access differences in AAC upon clinical variables, when different methods of calcium scoring are used.

Methods: This was an observational, retrospective, cross-sectional study.

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Pulmonary arterial hypertension (PAH) is a devastating disease characterized by progressive increases in pulmonary vascular resistance that can ultimately lead to right ventricle failure and death. Common symptoms include shortness of breath, fatigue, dizziness and chest pain, which negatively impact the functional capacity and quality of life. Despite the improvements in disease-targeted therapies, PAH remains incurable and with a high mortality rate, requiring effective therapeutic strategies.

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Background: Intrauterine exposure to a diabetic environment is associated with adverse fetal myocardial remodeling. The aim of this study was to assess the biventricular systolic and diastolic function of fetuses exposed to maternal diabetes (MD) compared with control subjects, using a comprehensive cardiac functional assessment and exploring the role of speckle-tracking to assess myocardial deformation. The authors hypothesized that fetuses exposed to MD present signs of biventricular dysfunction, which can be detected by deformation analysis.

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Pectus excavatum is generally considered a benign problem with a wide spectrum of impact in body image. Some articles had highlighted that this deformity can be associated with important clinical problems. We report a case of a 14-year-old boy with a severe pectus excavatum associated with palpitations who was diagnosed with polymorphic ventricular arrhythmia.

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Introduction: Trans-umbilical laparoscopic-assisted appendectomy (TULAA) combines advantages of open surgery with benefits of laparoscopy and can be performed either by single-incision or with two trocars; the present study aims to compare outcomes and cost of these techniques in a pediatric serie.

Material And Methods: Patients undergoing TULAA between July 2013 and June 2014 were retrospectively reviewed. There were two groups: A (single-incision) - one umbilical trocar for a telescope with inbuilt working channel; and B (2-trocar) - one umbilical trocar for a 'standard' telescope plus a supra-pubic trocar for instruments.

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Highlights: Urine proteomics allows the identification of the pathways modulated in neonates.Up-regulated pathways in preterm include immunity, metabolism and oxidative stress.Some of these pathways seem to be modulated by the nutritional support.

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Exercise training (ExT) is widely used for the prevention and treatment of several chronic cardiovascular diseases. However, only recently it started to be recognized as safe and beneficial in pulmonary arterial hypertension. Despite the consistency of its favorable effects on exercise tolerance and quality of life, the mechanisms underlying these meaningful clinical improvements remain unclear.

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Cachexia, or muscle wasting, is a complex metabolic syndrome associated with an underlying illness and characterized by loss of muscle mass. It is a rather prevalent condition, with impacts on patient survival, response to treatment, and quality of life. Treatment options are sparse because of cachexia's multifactorial pathogenesis.

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Epidemiologic and experimental evidence suggests that adverse stimuli during critical periods in utero permanently alters organ structure and function and may have persistent consequences for the long-term health of the offspring. Fetal hypoxia, maternal malnutrition, or ventricular overloading are among the major adverse conditions that can compromise cardiovascular development in early life. With the heart as a central organ in fetal adaptive mechanisms, a deeper understanding of the fetal cardiovascular physiology and of the echocardiographic tools to assess both normal and stressed pregnancies would give precious information on fetal well-being and hopefully may help in early identification of special risk groups for cardiovascular diseases later in life.

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Purpose: The objective is to present a new methodology to assess quantitatively the impact of bar removal on the anterior chest wall, among patients with pectus excavatum who have undergone the Nuss procedure, and present a preliminary study using this methodology.

Methods: We propose to acquire, for each patient, the surface of the anterior chest wall using a three-dimensional laser scanner at subsequent time points (short term: before and after surgery; long term: follow-up visit, 6months, and 12months after surgery). After surfaces postprocessing, the changes are assessed by overlapping and measuring the distances between surfaces.

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Pulmonary arterial hypertension (PAH) is a progressive disease with a poor prognosis. Pulmonary artery smooth muscle cells (PASMCs) play a crucial role in PAH pathophysiology, displaying a hyperproliferative, and apoptotic-resistant phenotype. In the present study, we evaluated the potential therapeutic role of terameprocol (TMP), an inhibitor of cellular proliferation and promoter of apoptosis, in a well-established pre-clinical model of PAH induced by monocrotaline (MCT) and studied the biological pathways modulated by TMP in PASMCs.

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The aim of this article is to evaluate the clinical utility of cardiac injury biomarkers in paediatric age. In December 2015, a literature search was performed (PubMed access to MEDLINE citations; http://www.ncbi.

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Objective: The aim of this article is to evaluate the clinical utility of brain natriuretic peptide in pediatric patients, examining the diagnostic value, management, and prognostic relevance, by critical assessment of the literature.

Data Sources: In December 2015, a literature search was performed (PubMed access to MEDLINE citations; http://www.ncbi.

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The aim of this review was to provide updated and recent literature on vascular access in neonates in order to help neonatologists in their clinical practice, using as data sources textbooks, recent published articles from Pubmed, Cochrane reviews and web guidelines.

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Background: Troponin I, myoglobin, and creatine kinase-MB mass (CK-MB) are biomarkers of cardiomyocyte injury widely used in the management of adult patients. The role of these biomarkers in newborns is still not established. The purpose of this study was to evaluate the value of cardiac injury biomarkers in newborns with congenital heart disease.

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