[Current status of requirements in the design of healthcare facilities to ensure accessibility for patients with disabilities]. / Estado actual de los requerimientos en el diseño de centros sanitarios para asegurar accesibilidad a pacientes con discapacidad.

BACKGROUND AND OBJECTIVE: People with disabilities are one of the groups that usually frequent healthcare centers, so it is essential to attend to their specific needs, especially from the point of view of universal accessibility, safety and healthcare quality. The aim of the study is to summarize the available evidence on the needs of groups of patients with some type of disability in access, navigation and stay during the reception of healthcare in various health centers and to identify successful solutions. MATERIALS AND METHODS: A scoping review had been designed, based on a literature review without time limit in three databases (PubMed, WOS, and Embase). RESULTS: Of the 2562 articles identified, 11 were included. Recommendations for improvement in the design of healthcare services focused on the following aspects: improving access to primary care centers; navigation, signage, and orientation in the hospital environment; elevator design; hospital room bathroom design; meeting the needs of wheelchair users; importance of the participation of the patient with a disability; involvement of stakeholders in the design process; and the need for appropriate policies to ensure accessibility to buildings. CONCLUSIONS: The promotion of artistic programs in healthcare settings and the participation of people with disabilities in the design process of healthcare settings could provide beneficial solutions. More studies are needed, given the scarcity of evidence found, to ensure that care for this group is based on criteria of patient safety, universal accessibility, healthcare quality and humanization.

Effect of time windows in LSTM networks for EEG-based BCIs.

People with impaired motor function could be helped by an effective brain-computer interface (BCI) based on a real-time electroencephalogram (EEG) and artificial intelligence algorithms. However, current methodologies for interpreting patient instructions from an EEG are not accurate enough to be completely safe in a real-world situation , where a poor decision would place their physical integrity at risk, such as when traveling in an electric wheelchair in a city. For various reasons, such as the low signal-to-noise ratio of portable EEGs or the effects of signal contamination (disturbances due to user movement, temporal variation of the features of EEG signals, etc.), a long short-term memory network (LSTM) (a type of recurrent neural network) that is able to learn data flow patterns from EEG signals could improve the classification of the actions taken by the user. In this paper, the effectiveness of using an LSTM with a low-cost wireless EEG device in real time is tested, and the time window that maximizes its classification accuracy is studied. The goal is to be able to implement it in the BCI of a smart wheelchair with a simple coded command protocol, such as opening or closing the eyes, which could be executed by patients with reduced mobility. Results show a higher resolution of the LSTM with an accuracy range between 77.61 and 92.14% compared to traditional classifiers (59.71%), and an optimal time window of around 7 s for the task done by users in this work. In addition, tests in real-life contexts show that a trade-off between accuracy and response times is necessary to ensure detection.

A New PLV-Spatial Filtering to Improve the Classification Performance in BCI Systems.

OBJECTIVE: The performance of an EEG-based brain-computer interface (BCI) system is highly dependent on signal preprocessing. This manuscript presents a filtering method to improve the feature classification algorithms typically used in BCI. METHODS: A graph Laplacian quadratic form using the Phase Locking Value (PLV) is applied to generate a new filtered signal in the preprocessing stage. RESULTS: The accuracy of the classification algorithms improved significantly (up to 27.18% in the BCI Competition IV dataset, and up to 42.56% with records made with an Emotiv EPOC+). In addition, the proposed filtering algorithm has similar or better results when compared with the Filter Bank Common Spatial Pattern (FBCSP), which has disadvantages in a multiclass classification. CONCLUSION: This paper shows how our PLV-based filtering between EEG channels could improve the performance of a BCI.

Efectos de los estímulos auditivos en la fase de iniciación de la marcha y de giro en pacientes con enfermedad de Parkinson / Effects of auditory cues on gait initiation and turning in patients with Parkinson's disease

Objetivo: Revisar la evidencia científica sobre la efectividad de la aplicación de estímulos auditivos en la fase de iniciación de la marcha y giro en pacientes con enfermedad de Parkinson. Métodos: Se realizó la búsqueda en las bases de datos Brain, PubMed, Medline, Cinahl, Scopus, Science Direct, Web of Science, Cochrane Database of Systematic Reviews, Biblioteca Cochrane Plus, CENTRAL, Trip Database, PEDro, DARE, OTSeeker y Google Académico. Se incluyeron estudios que analizasen la influencia de estímulos auditivos sobre el inicio y el giro de la marcha independiente en pacientes con enfermedad de Parkinson, publicados entre 2007 y 2016. Su calidad metodológica fue valorada mediante la escala Jadad. Resultados: Se seleccionaron 13 artículos, todos ellos de baja calidad (Jadad ≤ 2) que mostraron resultados positivos en relación con el uso de estímulos auditivos a alta frecuencia e intensidad sobre el inicio de la marcha y la ejecución de giros. En concreto, 1) mejoraron los parámetros espaciotemporales y cinemáticos, 2) disminuyeron la congelación, el tiempo de giro y las caídas y 3) aumentaron la velocidad de iniciación de la marcha, la activación muscular y la velocidad y cadencia de la marcha en los pacientes con EP. Conclusiones: Se requiere un mayor número de estudios y de mayor calidad metodológica para justificar y comprender en qué estadio los pacientes se beneficiarían más de esta señal sensorial, así como el tipo de guía auditiva y la frecuencia de estimulación más eficaz en la fase de iniciación de la marcha y de giro en pacientes con Parkinson

Objective: To review the available scientific evidence about the effectiveness of auditory cues during gait initiation and turning in patients with Parkinson's disease. Methods: We conducted a literature search in the following databases: Brain, PubMed, Medline, CINAHL, Scopus, Science Direct, Web of Science, Cochrane Database of Systematic Reviews, Cochrane Library Plus, CENTRAL, Trip Database, PEDro, DARE, OTseeker, and Google Scholar. We included all studies published between 2007 and 2016 and evaluating the influence of auditory cues on independent gait initiation and turning in patients with Parkinson's disease. The methodological quality of the studies was assessed with the Jadad scale. Results: We included 13 studies, all of which had a low methodological quality (Jadad scale score ≤ 2). In these studies, high-intensity, high-frequency auditory cues had a positive impact on gait initiation and turning. More specifically, they 1) improved spatiotemporal and kinematic parameters; 2) decreased freezing, turning duration, and falls; and 3) increased gait initiation speed, muscle activation, and gait speed and cadence in patients with Parkinson's disease. Conclusions: We need studies of better methodological quality to establish the Parkinson's disease stage in which auditory cues are most beneficial, as well as to determine the most effective type and frequency of the auditory cue during gait initiation and turning in patients with Parkinson's disease

Effects of auditory cues on gait initiation and turning in patients with Parkinson's disease. / Efectos de los estímulos auditivos en la fase de iniciación de la marcha y de giro en pacientes con enfermedad de Parkinson.

OBJECTIVE: To review the available scientific evidence about the effectiveness of auditory cues during gait initiation and turning in patients with Parkinson's disease. METHODS: We conducted a literature search in the following databases: Brain, PubMed, Medline, CINAHL, Scopus, Science Direct, Web of Science, Cochrane Database of Systematic Reviews, Cochrane Library Plus, CENTRAL, Trip Database, PEDro, DARE, OTseeker, and Google Scholar. We included all studies published between 2007 and 2016 and evaluating the influence of auditory cues on independent gait initiation and turning in patients with Parkinson's disease. The methodological quality of the studies was assessed with the Jadad scale. RESULTS: We included 13 studies, all of which had a low methodological quality (Jadad scale score≤2). In these studies, high-intensity, high-frequency auditory cues had a positive impact on gait initiation and turning. More specifically, they 1) improved spatiotemporal and kinematic parameters; 2) decreased freezing, turning duration, and falls; and 3) increased gait initiation speed, muscle activation, and gait speed and cadence in patients with Parkinson's disease. CONCLUSIONS: We need studies of better methodological quality to establish the Parkinson's disease stage in which auditory cues are most beneficial, as well as to determine the most effective type and frequency of the auditory cue during gait initiation and turning in patients with Parkinson's disease.

Using radio astronomical receivers for molecular spectroscopic characterization in astrochemical laboratory simulations: A proof of concept.

We present a proof of concept on the coupling of radio astronomical receivers and spectrometers with chemical reactors and the performances of the resulting setup for spectroscopy and chemical simulations in laboratory astrophysics. Several experiments including cold plasma generation and UV photochemistry were performed in a 40 cm long gas cell placed in the beam path of the Aries 40 m radio telescope receivers operating in the 41-49 GHz frequency range interfaced with fast Fourier transform spectrometers providing 2 GHz bandwidth and 38 kHz resolution. The impedance matching of the cell windows has been studied using different materials. The choice of the material and its thickness was critical to obtain a sensitivity identical to that of standard radio astronomical observations. Spectroscopic signals arising from very low partial pressures of CH3OH, CH3CH2OH, HCOOH, OCS, CS, SO2 (<10-3 mbar) were detected in a few seconds. Fast data acquisition was achieved allowing for kinetic measurements in fragmentation experiments using electron impact or UV irradiation. Time evolution of chemical reactions involving OCS, O2 and CS2 was also observed demonstrating that reactive species, such as CS, can be maintained with high abundance in the gas phase during these experiments.

Adaptive pharmacokinetic and pharmacodynamic modelling to predict propofol effect using BIS-guided anesthesia.

BACKGROUND AND OBJECTIVE: Propofol is widely used for hypnosis induction and maintenance of general anesthesia. Its effect can be assessed using the bispectral index (BIS). Many automatic infusion systems are based in pharmacokinetics (PK) and pharmacodynamics (PD) models to predict the response of the patient to the drug. However, all these models do not take into account intra and inter-patient variability. An adjusted intraoperative drug administration allows faster recovery and provides post-operative side-effect mitigation METHODS: BIS evolution and surgery-recorded propofol infusion data of a group of 60 adult patients (30 males/30 females) with ASA I/II physical status were used to test a real time PK/PD compartmental model. This new algorithm tunes three model parameters (ce50, γ and ke0), minimizing a performance function online. RESULTS: The error in the BIS signal predicted by the real time PK/PD model was smaller than the error measured with fixed parameter equations. This model shows that ce50, γ and ke0 change with time and patients, given a mean (95% confidence interval) of 3.89 (3.52-4.26)mg/l, 4.63 (4.13-5.13) and 0.36 (0.31-0.4)min(-1), respectively. CONCLUSIONS: The real time PK/PD model proposed provides a closer description of the patient real state at each sample time. This allows for greater control of the drug infusion, and thus the quantity of drug administered can be titrated to achieve the desired effect for the desired duration, and reduce unnecessary waste or post-operative effects.

Probing non polar interstellar molecules through their protonated form: Detection of protonated cyanogen (NCCNH+).

Cyanogen (NCCN) is the simplest member of the series of dicyanopolyynes. It has been hypothesized that this family of molecules can be important constituents of interstellar and circumstellar media, although the lack of a permanent electric dipole moment prevents its detection through radioastronomical techniques. Here we present the first solid evidence of the presence of cyanogen in interstellar clouds through the detection of its protonated form toward the cold dark clouds TMC-1 and L483. Protonated cyanogen (NCCNH+) has been identified through the J = 5 - 4 and J = 10 - 9 rotational transitions using the 40m radiotelescope of Yebes and the IRAM 30m telescope. We derive beam averaged column densities for NCCNH+ of (8.6 ± 4.4) × 1010 cm-2 in TMC-1 and (3.9 ± 1.8) × 1010 cm-2 in L483, which translate to fairly low fractional abundances relative to H2, in the range (1-10) × 10-12. The chemistry of protonated molecules in dark clouds is discussed, and it is found that, in general terms, the abundance ratio between the protonated and non protonated forms of a molecule increases with increasing proton affinity. Our chemical model predicts an abundance ratio NCCNH+/NCCN of ~ 10-4, which implies that the abundance of cyanogen in dark clouds could be as high as (1-10) × 10-8 relative to H2, i.e., comparable to that of other abundant nitriles such as HCN, HNC, and HC3N.

Application of active electrode compensation to perform continuous voltage-clamp recordings with sharp microelectrodes.

OBJECTIVE: Electrophysiological recordings of single neurons in brain tissues are very common in neuroscience. Glass microelectrodes filled with an electrolyte are used to impale the cell membrane in order to record the membrane potential or to inject current. Their high resistance induces a high voltage drop when passing current and it is essential to correct the voltage measurements. In particular, for voltage clamping, the traditional alternatives are two-electrode voltage-clamp technique or discontinuous single electrode voltage-clamp (dSEVC). Nevertheless, it is generally difficult to impale two electrodes in a same neuron and the switching frequency is limited to low frequencies in the case of dSEVC. We present a novel fully computer-implemented alternative to perform continuous voltage-clamp recordings with a single sharp-electrode. APPROACH: To reach such voltage-clamp recordings, we combine an active electrode compensation algorithm (AEC) with a digital controller (AECVC). MAIN RESULTS: We applied two types of control-systems: a linear controller (proportional plus integrative controller) and a model-based controller (optimal control). We compared the performance of the two methods to dSEVC using a dynamic model cell and experiments in brain slices. SIGNIFICANCE: The AECVC method provides an entirely digital method to perform continuous recording and smooth switching between voltage-clamp, current clamp or dynamic-clamp configurations without introducing artifacts.

Development of a patient simulator for teaching and evaluation of the basic cardio-pulmonary reanimation protocol.

Providing appropriate cardio-pulmonary reanimation after cardio-pulmonary arrest is paramount for survival. An effective and low-cost approach to learn and practice the cardio-pulmonary reanimation is through a computerized life-size patient simulator. The present work describes the development of a patient simulator for the Centre of Education and Certification of Medical Aptitudes (CECAM) from the UNAM's Faculty of Medicine. This patient simulator has many new and innovative features, such real-time feedback to the medical student, which improves the whole teaching/learning experience.

Linfangiomas de cavidad oral en edad pediátrica / Lymphangiomas of the oral cavity in childhood

Los linfangiomas son tumores raros y benignos producidos por el desarrollo anómalo de los vasos linfáticos. Presentamos un caso de linfangioma quístico asintomático localizado en paladar duro; se trata de una localización atípica, puesto que la mayoría de esas lesiones se localizan en la lengua a nivel de cavidad oral. Se realizó una resección con láser de CO2, sin que se evidenciase recidiva tras dos años de seguimiento. Actualmente se acepta adoptar una actitud expectante o el tratamiento con agentes esclerosantes que reduzcan su tamaño o los eliminen (AU)

Lymphangiomas are rare, benign tumors produced by the abnormal development of the lymphatic vessels. We present a case of asymptomatic cystic lymphangioma localized in the hard palate. This is an uncommon location since most of these lesions are found in the tongue at the level of the oral cavity. Resection was performed with CO laser, and there was no evidence of recurrence after two years of follow-up. At the present time, the approaches most widely accepted are expectant treatment or administration of sclerosing agents that reduce the size of the lesions or eliminate them (AU)

Utilidad de la PET/TAC para la caracterización del liposarcoma / CT-PET applicattion in the liposarcoma feature determination

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[Fistula of the first branchial arch]. / Fístula de primer arco branquial.

The complexity of the embriologic development of the neck and the possible abnomarlies in this process, with the consequent posterior manifestations make necessary the knowledge of the embriologic anatomy of the neck. In the possible manifestations that can be of the anomalies of the development of the branchial archs are the abnomarlies of the first branchial archs. They are, in the anomalies of the development of the branchial archs infrequent and are intimately related with the facial nerve. We present a clinic case of a seven years old boy affected by this pathology and revise its more important aspects.

[CT-PET application in the liposarcoma feature determination]. / Utilidad de la PET/TAC para la caracterización del liposarcoma.

The indication taken from the maximun tumor standarizad uptake (SUVmax) in soft tissue's cancer such as the liposarcomas leads to determine its methabolic behavicur and indicates the histologic subtype classification (myxoid).

Fístula del primer arco branquial / Fistula of the first branchial arch

La complejidad del desarrollo embriológico del cuello y las posibles del cuello y las posibles anomalías en este proceso, con las consiguientes manifestaciones posteriores hacen necesario el conocimiento de la anatomía embriológica del cuello. Dentro de las posibles manifestaciones que pueden darse de las anomlías del desarrollo de los arcos branquiales se encuentran las anomalías del primer arco branquial. Son dentro de las anomalías del desarrollo de los arcos branquiales, infrecuentes y están íntimamente relacionadas con el nervio facial. Presentamos el caso clínico correspondiente a un niño de 7 años con esta patología y repasamos los aspectos más importantes de la misma

The complexity of the embryologic development of the neck and the possible abnormalies in thi process, with the consequent posterior manifestations make necessary the knowledge of the embryologic anatomy of the neck. In the possible manifestations that can be of the abnormalies of the development of the branchial archs are the abnormalies of the first branchial archs. The are, in the anomalies of the development of the branchial archs infrequent and are intimately related with the facial nerve. We present a clinic case of a seven years old boy affected by this pathology and revise its more important aspects

[Arterioveinous dural malformation in ENT]. / Malformaciones arteriovenosas durales en el ambito de la ORL.

The arterioveinous dural malformation (MAVD) is a rare entity between the vascular craneal anomalies with a not well nown ethiology and variability in treatments. We present eleven cases of MAVDs, between them five presented tinnitus as symptom of aparition. The importance of this pathology makes necessary to discard it before a patient consulting because of pulsaltil tinnitus with normal otoscopy.

Indicación del tratamiento endoscópico de los mucoceles maxiloetmoidales / Indication for endoscopic procedures in maxilloethmoydal mucoceles

La cirugía endoscópica nasosinusal ha posibilitado un cambio en el diagnóstico, tratamiento y manejo postquirúrgico de múltiples patologías nasales y sinusales. Los mucoceles de los senos paranasales pueden constituir una de las indicaciones ideales para la realización de esta técnica siempre que reúnan condiciones suficientes de accesibilidad. En estos casos, se lograría evitar tratamiento quirúrgico por vía externa con las secuelas y morbilidad consiguientes. Presentamos un mucocele de gran tamaño y extensión maxiloetmoidal tratado endoscópicamente y analizamos los puntos clave para sentar la indicación de tratamiento endoscópico en esta patología

The Functional Endoscopic Sinus Surgery has posibilitated a change in the diagnosis, treatment and postsurgical management of many nasosinusal diseases. Mucoceles of the paranasal sinuses are an ideal indication for performing these surgical procedures when good accesibility conditions are presented under these circumstances, external approach, with the subsequent impairments and morbility, could be avoided. An endoscopically treated extensive maxilloethmoydal mucocele is presented and key points to endoscopic treatment indication are provided

[An uncommon cause for unilateral vocal fold paralisis: aortic aneurysms. Case report and literature review]. / Una causa poco frecuente de parálisis recurrencial: aneurismas de aorta Aportación de un caso clínico y revisión de la literatura.

Unilateral vocal fold paralysis is frequently encountered during ENT practise. It may result from many different conditions and it always should be regarded as a sign revealingan underlaying disease that can be located anywhere along the traject of the tenth cranial nerve or at the cricoarytenoidjoint being malignancies and trauma the leading causes. Etiology, glottal characteristics and compensative maneuvers, and individual factors such as comorbility or age must be considered when treatment options are proposed to the patient. A case of an uncommon etiology for unilateral vocal fold paralysis, an aortic aneurysm, is presented and considerations about the management of this condition are provided.

Una causa poco frecuente de parálisis recurrencial: aneurisma de aorta. Aportación de un caso clínico y revisión de la literatura / An uncommon cause for unilateral vocal fold paralisis: aortic aneurysms. Case report and literature review

La parálisis unilateral de una cuerda vocal es un hallazgo común durante el ejercicio de la otorrinolaringología que puede deberse a múltiples patologías y que siempre debe considerarse como un signo revelador de una patología subyacente que puede ubicarse a cualquier nivel del trayecto del X par craneal o en la articulación cricoaritenoidea, siendo tumores malignos y traumatismos las principales causas. A la hora de proponer las diferentes opciones terapéuticas factibles, se debe valorar y considerar la etiología de la parálisis, las características exploratorias del la laringe y las maniobras compensatorias que ésta realiza, y factores individuales del paciente tales como comorbilidad, edad, autopercepción de la enfermedad por el paciente y sus deseos. Presentamos un caso de parálisis recurrencial unilateral de una etiología poco frecuente, un aneurisma de aorta, realizando una serie de consideraciones que a nuestro juicio son importantes en estos caso

Unilateral vocal fold paralysis is frequently encountered during ENT practise. It may result from many different conditions and it always should be regarded as a sign revealingan underlaying disease that can be located anywhere along the traject ofthe tenth cranial nerve or at the cricoarytenoid joint being malignancies and trauma the leading causes. Etiology, glottal characteristics and compensative maneuvers, and individual factors such as comorbility or age must be considered when treatment options are proposed to the patient. A case of an uncommon etiology for unilateral vocal fold paralysis, an aortic aneurysm, is presented and considerations about the management of this condition are provided

[Indication for endoscopic procedures in maxiloethmoydal mucoceles]. / Indicación del tratamiento endoscópico de los mucoceles maxiloetmoidales.

The Functional Endoscopic Sinus Surgery has posibilitated a change in the diagnosis, treatment and postsurgical management of many nasosinusal diseases. Mucoceles of the paranasal sinuses are an ideal indication for performing these surgical procedures when good accesibility conditions are present. Under these circumstances, external approach, with the subsequent impairments and morbility, could be avoided. An endoscopically treated extensive maxilloethmoydal mucocele is presented and key points to endoscopic treatment indication are provided.