Use of High-Flow Nasal Cannula in Patients With Pneumonia and Hypoxemic Respiratory Failure at Altitudes Above 2600 m: What Is the Best Predictor of Success?

The use of high-flow nasal cannulas (HFNC) in patients with hypoxemic ventilatory failure reduces the need for mechanical ventilation and does not increase mortality when intubation is promptly applied. The aim of the study is to describe the behavior of HFNC in patients who live at high altitudes, and the performance of predictors of success/failure of this strategy. Prospective multicenter cohort study, with patients aged over 18 years recruited for 12 months in 2020 to 21.

[Pediatric heart surgery minimally invasive: experience of a Colombian center].

Objective: During the last decades, cardiac surgery has revolutionized, there is a growing interest in minimizing the physical aggression of surgical procedures, seeking a quick recovery, minimally invasive approaches have been a trend in recent years, with safety and efficacy equivalent to traditional techniques sternotomy. The objective of this study is to compare ­clinical results between pediatric patients with congenital heart disease undergoing minimally invasive surgery versus standard sternotomy.

Methods: Case-control study, nested in a retrospective cohort.

Influence of gamma radiation on Amphotericin B incorporated in PVP hydrogel as an alternative treatment for cutaneous leishmaniosis.

Amphotericin B (Amph-B) is an antifungal drug used intravenously for the treatment of leishmaniasis. Side-effects from Amph-B treatment can arise such as cardiac arrhythmia and renal dysfunctions, which will lead to discontinuation of treatment. Unfortunately, patients in endemic countries do not have access to alternative therapies.

The Good, the Bad, and Recovery: Adolescents Describe the Advantages and Disadvantages of Alternative Peer Groups.

In 2017, approximately 1.5 million American adolescents had a substance use disorder (SUD). Adolescents with SUD risk hindering their neurological development, which can result in problems with memory and self-regulation, and in turn disrupt their education, relationships, and life opportunities.

[Head and neck cancer: validation of the QLQ-H&N35 quality of life questionnaire].

Background: Head and neck cancer affects esthetic and anatomical parameters, causing pain and functional impotence, affecting vital functions such as eating and breathing, hampering the quality of life of patients. EORTCQLQ-C30 questionnaire with its supplementary module QLQ-H & N35 evaluates the quality of life of these patients.

Aim: To statistically validate the QLQ-H & N35 questionnaire in patients with head and neck cancer.

Bronchopulmonary dysplasia predictor scale validation in preterm newborns in two neonatal units at 2600 m above sea level.

Introduction: Bronchopulmonary dysplasia (BPD) is common in premature babies. It is difficult to predict the risk of developing this disease and its definition is not well characterized in high altitude cities.

Objective: To determine the operating characteristics of a BPD predictive scale for in preterm infants based on a classical BPD definition and one adjusted for altitude.

Porous micropillar structures for retaining low surface tension liquids.

The ability to manipulate fluid interfaces, e.g., to retain liquid behind or within porous structures, can be beneficial in multiple applications, including microfluidics, biochemical analysis, and the thermal management of electronic systems.

About the Sterilization of Chitosan Hydrogel Nanoparticles.

In the last years, nanostructured biomaterials have raised a great interest as platforms for delivery of drugs, genes, imaging agents and for tissue engineering applications. In particular, hydrogel nanoparticles (HNP) associate the distinctive features of hydrogels (high water uptake capacity, biocompatibility) with the advantages of being possible to tailor its physicochemical properties at nano-scale to increase solubility, immunocompatibility and cellular uptake. In order to be safe, HNP for biomedical applications, such as injectable or ophthalmic formulations, must be sterile.

[The Moral Deliberation: The Clinical Ethics Method. Presentation of a Paediatric Case].

Decision-making is one of the most difficult tasks of medical judgment, especially when cases involve paediatric patients with different cultural characteristics. It is the obligation of clinical ethics, taking the interdisciplinary approach as a tool to comprehensively analyse the clinical, social, cultural and legal aspects, among other topics, when choosing the treatment options that will be more beneficial for the patient. A clinical case, should enable this process of analysis and teamwork to be understood in practical way in order to address difficult medical problems.

Assessment of self-perception of physical fitness and proposal for standards among Chilean adolescent students: the EAPAF study.

Introduction: Physical fitness may be assessed among children and adolescents in a quantitative and qualitative manner. At present, in Chile, there are no tools available to assess self-perception of physical fitness. Therefore, the purpose of this study was to develop a valid and reliable instrument that would allow to assess selfperception of physical fitness among adolescents and propose standards for age and sex.

Grazing as an alternative for utilization of saline-sodic soils in the San Joaquin Valley: selenium accretion and performance of beef heifers.

Two experiments were conducted to evaluate Se accumulation and health of non-pregnant, non-breeding beef cattle grazing on forages with a high Se content due to irrigation with saline drainage water. Heifers grazed experimental pastures of "Jose" tall wheatgrass (TWG; Thinopyrum ponticum var. "Jose") and creeping wildrye (CWR; Leymus triticoides var.

Acoustical detection of venous stenosis in hemodialysis patients using principal component analysis.

In this paper, a feature extraction method based on principal component analysis was developed for classification of the vascular access's condition in hemodialysis patients. The assessment of the method was carried out by discriminating between before and after angioplasty sound recordings as well as before angioplasty and reference recordings. The results showed that when before and after angioplasty recordings were compared by patient, the classification agreed with the result of angioplasty procedure.

Application of the Empirical Mode Decomposition in the study of murmurs from Arteriovenous fistula stenosis.

The Empirical Mode Decomposition (EMD) is a method to decompose non linear, non stationary time series into a sum of different modes, named Intrinsical Mode Functions each one having a characteristic frequency. In the present work we used the EMD to investigate the properties of the recorded sounds from the Arteriovenous fistula on hemodialysis patients. Phonoangiographic signals coming from two different vessel conditions, stenotic and non-stenotic, were analyzed by using EMD, the mean energy and mean instantaneous frequency per IMF proved to be good features for classification.

Methodological analysis of gamma tomography system for large random packed columns.

Gamma ray tomography experiments have been carried out to detect spatial patterns in the porosity in a 0.27 m diameter column packed with steel Rashig rings of different sizes: 12.6, 37.

Characterisation of arteriovenous fistula's sound recordings using principal component analysis.

In this study, a signal analysis framework based on the Karhunen-Loève expansion and k-means clustering algorithm is proposed for the characterisation of arteriovenous (AV) fistula's sound recordings. The Karhunen-Loève (KL) coefficients corresponding to the directions of maximum variance were used as classification features, which were clustered applying k-means algorithm. The results showed that one natural cluster was found for similar AV fistula's state recordings.

Characterization of cachaça and rum aroma.

Cachaça, the most popular alcoholic beverage in Brazil, is a sugar cane spirit similar to rum. Its production is around 2 billion liters per year, of which <1% is exported. Although rum is similar to cachaça its flavor difference is easily recognizable.

New composite index based on midlatency auditory evoked potential and electroencephalographic parameters to optimize correlation with propofol effect site concentration: comparison with bispectral index and solitary used fast extracting auditory evoked potential index.

Background: This study investigates the accuracy of a composite index, the A-Line(R) auditory evoked potentials index version 1.6 (AAI1.6; Danmeter A/S, Odense, Denmark), as a measure of cerebral anesthetic drug effect in a model for predicting a calculated effect site concentration of propofol (CePROP).