Publications by authors named "Tello K"

Aims: Outcome in pulmonary arterial hypertension (PAH) is determined by right ventricular (RV) function adaptation to increased afterload. Echocardiography is easily available to assist bedside evaluation of the RV. However, no agreement exists about the feasibility and most relevant measurements.

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Aims: SPARCL1 was recently identified as a biomarker of right ventricular (RV) maladaptation in patients with pulmonary hypertension (PH), and N-terminal pro-brain natriuretic protein (NT-proBNP) is an established biomarker of RV failure in PH. The present study investigated whether NT-proBNP and SPARCL1 concentrations are associated with load-independent parameters of RV function and RV-to-pulmonary artery (RV-PA) coupling as measured using invasive pressure-volume (PV) loops in the RV.

Methods: SPARCL1 and NT-proBNP were measured in the plasma of patients with idiopathic pulmonary artery hypertension (IPAH, n = 73).

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Background: Exercise pulmonary hypertension (PH) was defined by a mean pulmonary arterial pressure (mPAP)/cardiac output (CO) slope >3 mmHg·min·L between rest and exercise in the 2022 European Society of Cardiology/European Respiratory Society PH guidelines. However, large, multicentre studies on the prognostic relevance of exercise haemodynamics and its added value to resting haemodynamics are missing.

Patients And Methods: The PEX-NET (Pulmonary Haemodynamics during Exercise Network) registry enrolled patients who underwent clinically indicated right heart catheterisations both at rest and ergometer exercise from 23 PH centres worldwide.

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Article Synopsis
  • - The study investigates the relationship between CD44 and CD63 protein expressions and various clinicopathological features in breast cancer, including tumor-infiltrating lymphocytes, specific genetic mutations, and patient survival rates.
  • - Findings from 101 breast cancer samples reveal that high CD44 expression is linked to younger age, a triple-negative cancer type, and shorter survival, while high CD63 density correlates with estrogen receptor positivity and lower tumor-infiltrating lymphocyte levels.
  • - The results suggest that CD44 is associated with more aggressive cancer characteristics, while lower CD63 density is observed in tumors with aggressive traits.
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  • The study investigates the relationship between right ventricular outflow tract (RVOT) function and the severity of pulmonary hypertension (PH) using three-dimensional echocardiography.
  • Findings show that patients with PH have a significantly lower median 3D RVOT ejection fraction (EF) compared to healthy controls, indicating compromised RVOT function.
  • Patients with low RVOT-EF were more likely to be in higher risk categories and experienced worse clinical outcomes, suggesting that segmental RVOT analysis can help identify high-risk individuals even if their overall right ventricular function appears normal.
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Rationale: While sex differences in right heart phenotypes have been observed, the molecular drivers remain unknown.

Objectives: To provide biological insights into sex differences in the structure and function of the right ventricle (RV) using common genetic variation.

Methods: RV phenotypes were obtained from cardiac magnetic resonance imaging in 18,156 women and 16,171 men from the UK Biobank.

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  • The study investigates the significance of the tricuspid annular plane systolic excursion (TAPSE) to systolic pulmonary arterial pressure (sPAP) ratio in predicting outcomes for patients suspected of having pulmonary hypertension (PH), particularly those with normal or mildly elevated mean pulmonary arterial pressure (mPAP).
  • Researchers analyzed data from 237 patients with mPAP < 25 mm Hg over an observation period of 63 months, finding that the TAPSE to sPAP ratio was a strong independent predictor of mortality and clinical worsening events.
  • The results also indicated that this ratio correlates with exercise capacity (measured by the 6-minute walk distance) and the hemodynamics related to exercise, emphasizing its potential
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Right ventricular (RV) function is critical to prognosis in all forms of pulmonary hypertension. Here we perform molecular phenotyping of RV remodeling by transcriptome analysis of RV tissue obtained from 40 individuals, and two animal models of RV dysfunction of both sexes. Our unsupervised clustering analysis identified 'early' and 'late' subgroups within compensated and decompensated states, characterized by the expression of distinct signaling pathways, while fatty acid metabolism and estrogen response appeared to underlie sex-specific differences in RV adaptation.

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Background: Patients with COPD frequently demonstrate pulmonary hypertension (PH). Severe PH in patients with COPD, identified by pulmonary vascular resistance (PVR) of > 5 Wood units (WU), is closely linked to impaired transplant-free survival. The impact of PH-targeting pharmacotherapy in this context remains unclear.

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Background: Cancer is one of the leading causes of death worldwide, and cardiopulmonary comorbidities may further adversely affect cancer prognosis. We recently described lung cancer-associated pulmonary hypertension (PH) as a new form of PH and comorbidity of lung cancer. While patients with lung cancer with PH had significantly reduced overall survival compared with patients without PH, the prevalence and impact of PH in other cancers remain unclear.

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The PEGASUS study is the first multicentric and prospective assessment of the safety of air travel flying in pulmonary hypertension (PH) (NCT03051763). Data of air travel from 60 patients with PH was available. No severe adverse events occurred.

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Introduction: Endobronchial foreign body aspiration is not common in adults, but it is a life-threatening event. Recurrent pneumonias by chronic retention of foreign body often lead to initial medical presentation of the patient. However, lymphoplasmacellular bronchitis with adenomatous hyperplasia and squamous epithelium metaplasia with complete or partial blockage of lobar bronchus mimicking lung tumor is rare in literature, and this particular condition is often misdiagnosed.

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The psychological health and safety of healthcare workers workplaces and learning environments impacts the quality of healthcare services. To facilitate the psychological health and safety of interprofessional primary care teams, we curated a bilingual toolkit of 122 psychological health and safety resources comprising a multi-level categorization addressing individual, team, organization, and system-level interventions. The resources in the toolkit are organized by 7 themes, based on a clustering of the 15 psychosocial factors.

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Background: The influence of () infection and the characteristics of gastric cancer (GC) on tumor-infiltrating lymphocyte (TIL) levels has not been extensively studied. Analysis of infiltrating-immune-cell subtypes as well as survival is necessary to obtain comprehensive information.

Aim: To determine the rates of deficient mismatch-repair (dMMR), HER2-status and infection and their association with TIL levels in GC.

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  • The study assessed how well respiratory RAP variation correlates with various aspects of right ventricular (RV) function and workload using data from the EXERTION study, including 75 patients, with 41% showing impaired RAP variation.
  • Results showed that impaired RAP variation was linked to worse RV function and prognosis compared to those with preserved RAP variation, highlighting its potential as a predictor of long-term outcomes in PH patients.
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Pulmonary hypertension (PH) is a progressive, severe and to date not curable disease of the pulmonary vasculature. Alterations of the insulin-like growth factor 1 (IGF-1) system are known to play a role in vascular pathologies and IGF-binding proteins (IGFBPs) are important regulators of the bioavailability and function of IGFs. In this study, we show that circulating plasma levels of IGFBP-1, IGFBP-2 and IGFBP-3 are increased in idiopathic pulmonary arterial hypertension (IPAH) patients compared to healthy individuals.

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Aims: Hepatic T1-time derived from cardiac magnetic resonance imaging (cMRI) reflects venous congestion and may provide a simple alternative to invasive end-diastolic elastance (Eed) for assessment of right ventricular (RV) diastolic function. We investigated the association of native hepatic T1-time with single-beat Eed and the value of hepatic T1-time for longitudinal monitoring in pulmonary hypertension (PH).

Methods And Results: We retrospectively enrolled 85 patients with suspected PH (59% female; 78 with PH diagnosed; 7 with PH excluded) who underwent standard right heart catheterization and cMRI within 24 h between 2015 and 2020.

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Three-dimensional (3D) echocardiography-derived right ventricular (RV) ejection fraction (EF) and global longitudinal strain (GLS) are valuable RV functional markers; nevertheless, they are substantially load-dependent. Global myocardial work index (GMWI) is a novel parameter calculated by the area of the RV pressure-strain loop. By adjusting myocardial deformation to instantaneous pressure, it may reflect contractility.

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Article Synopsis
  • - Pulmonary hypertension (PH) is a serious and varied disease, necessitating accurate assessments for effective treatment, and its existing risk models require further investigation, especially outside of group 1 (PAH).
  • - This study analyzed 8,565 patients with different types of PH (groups 1 to 4) to determine if risk scores developed for pulmonary arterial hypertension (PAH) could predict outcomes in all groups.
  • - Results showed that all risk scores were effective in predicting patient outcomes across PH groups, with the REVEAL scores proving to be the most statistically powerful and detailed.
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Background: Pulmonary hypertension (PH) can lead to congestive hepatopathy, known as cardiohepatic syndrome (CHS). Hepatic congestion is associated with increased liver stiffness, which can be quantified using shear wave elastography. We aimed to investigate whether hepatic shear wave elastography detects patients at risk in the early stages of PH.

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Background: Nucleated red blood cells (nRBC) are precursor cells of the erythropoiesis that are absent from the peripheral blood under physiological conditions. Their presence is associated with adverse outcomes in critically ill patients. This study aimed to evaluate the predictive value of nRBC on mortality in intensive care unit (ICU) patients with COVID-19 acute respiratory distress syndrome (ARDS).

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Article Synopsis
  • - The updated guidelines for pulmonary hypertension feature a new diagnostic algorithm and outline necessary diagnostic procedures and screening methods.
  • - National experts have reviewed and commented on these recommendations to enhance understanding and support for healthcare providers.
  • - These expert comments offer valuable insights and background, making the complex process of diagnosing pulmonary hypertension clearer for medical professionals.
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