Untreated combined persistent fetal vasculature with "coralliform" cataract in a Hispanic 21 year-old male.

Persistent fetal vasculature is a spectrum of ocular abnormalities linked to an incomplete regression of the fetal ocular vasculature. A 21-years old male patient came to the outpatient clinic reporting low vision and strabismus in his left eye since 3 years of age. Ophtalmological examination revealed a normal right eye, while the left eye had a best corrected visual acuity of hand-motion perception, a 30 prism diopters esotropia, a "coralliform" cataract and a vitreous stalk joining the posterior face of the lens and the optic nerve. The coralliform cataract possessed spindle-shaped processes radiating out of its center in an axial direction and was located in the posterior subcapsular area. The patient elected to not undergo vitreoretinal surgery due to the poor visual prognosis. The unusual cataract present in the described patient could be related to his untreated status, as previous authors have reported that untreated cataracts in persistent fetal vasculature may undergo diverse degenerations.

Standard and Expanded Series Patch Testing Update by the Spanish Contact Dermatitis and Skin Allergy Research Group (GEIDAC). / Actualización de la batería estándar y batería ampliada de pruebas alérgicas de contacto por el Grupo Español de Investigación en Dermatitis de Contacto y Alergia Cutánea (GEIDAC).

After the meeting held by the Spanish Contact Dermatitis and Skin Allergy Research Group (GEIDAC) back in October 2021, changes were suggested to the Spanish standard series patch testing. Hydroxyethyl methacrylate (2% pet.), textile dye mixt (6.6% pet.), linalool hydroperoxide (1% pet.), and limonene hydroperoxide (0.3% pet.) were, then, added to the series that agreed upon in 2016. Ethyldiamine and phenoxyethanol were excluded. Methyldibromoglutaronitrile, the mixture of sesquiterpene lactones, and hydroxyisohexyl 3-cyclohexene (Lyral) were alo added to the extended Spanish series of 2022.

CD138 immunohistochemistry identifies more plasma cells compared with hematoxylin and eosin staining in autoimmune hepatitis. An observational study.

INTRODUCTION: Autoimmune hepatitis (AIH) is associated with periportal infiltration by plasma cells. Plasma cell detection is routinely performed through hematoxylin and eosin (H&E) staining. The present study aimed to assess the utility of CD138, an immunohistochemical plasma cell marker, in the evaluation of AIH. MATERIALS AND METHODS: A retrospective study was conducted, in which cases consistent with AIH, within the time frame of 2001 and 2011, were collected. Routine H&E-stained sections were used for evaluation. CD138 immunohistochemistry (IHC) was performed to detect plasma cells. RESULTS: Sixty biopsies were included. In the H&E group, the median and interquartile range (IQR) was 6 (4-9) plasma cells/high power field (HPF) and was 10 (IQR 6-20) plasma cells/HPF in the CD138 group (p < 0.001). There was a significant correlation between the number of plasma cells determined by H&E and CD138 (p = 0.31, p = 0.01). No significant correlation was found between the number of plasma cells determined by CD138 and IgG level (p = 0.21, p = 0.09) or stage of fibrosis (p = 0.12, p = 0.35), or between IgG level and stage of fibrosis (p = 0.17, p = 0.17). No significant correlation was found between the treatment response and the number of plasma cells determined by H&E (p = 0.11, p = 0.38), CD138 (p = 0.07, p = 0.55), or stage of fibrosis (p = 0.16, p = 0.20). CD138 expression was different between the treatment response groups (p = 0.04). CONCLUSION: CD138 increased the detection of plasma cells in liver biopsies of patients with AIH, when compared with routine H&E staining. However, there was no correlation between the number of plasma cells determined by CD138 and serum IgG levels, stage of fibrosis, or response to treatment.

Usefulness of renal nephrometry scoring systems in the prediction of complications associated to percutaneous image-guided treatment for small renal masses.

INTRODUCTION: Due to their increasing prevalence and complex management, renal tumors are challenging for health professionals. The study aims to evaluate the usefulness of R.E.N.A.L. and PADUA nephrometry scores in the prediction of complications after percutaneous cryoablation. MATERIAL AND METHODS: The study prospectively analyzed 90 patients with 101 stage T1a renal cell carcinoma (RCC) tumors treated with cryoablation. RESULTS: Ninety patients with 101 small renal tumors who received cryoablative therapy were investigated. The mean age of the patients was 68 years and 74.4% were male. Most tumors were smaller than 4 cm (89.1%) and the mean PADUA and R.E.N.A.L. scores were 8.65 and 7.35, respectively. Complications were observed in 12 cases. PADUA and R.E.N.A.L. scores demonstrated moderate predictive power (AUC = 0.58 and AUC = 0.63, respectively) for post-cryoablation complications. CONCLUSIONS: Percutaneous cryoablation is a safe and effective treatment for small renal tumors. The R.E.N.A.L. and PADUA renal nephrometry scores have moderate predictive power for complications associated with percutaneous cryoablation of renal tumors.

Analysis of a two-layer energy balance model: Long time behavior and greenhouse effect.

We study a two-layer energy balance model that allows for vertical exchanges between a surface layer and the atmosphere. The evolution equations of the surface temperature and the atmospheric temperature are coupled by the emission of infrared radiation by one level, that emission being partly captured by the other layer, and the effect of all non-radiative vertical exchanges of energy. Therefore, an essential parameter is the absorptivity of the atmosphere, denoted εa. The value of εa depends critically on greenhouse gases: increasing concentrations of CO2 and CH4 lead to a more opaque atmosphere with higher values of ϵa. First, we prove that global existence of solutions of the system holds if and only if εa∈(0,2) and blow up in finite time occurs if εa>2. (Note that the physical range of values for εa is (0,1].) Next, we explain the long time dynamics for εa∈(0,2), and we prove that all solutions converge to some equilibrium point. Finally, motivated by the physical context, we study the dependence of the equilibrium points with respect to the involved parameters, and we prove, in particular, that the surface temperature increases monotonically with respect to εa. This is the key mathematical manifestation of the greenhouse effect.

Erratum: Ratchet universality in the bidirectional escape from a symmetric potential well [Phys. Rev. E 103, 022203 (2021)].

This corrects the article DOI: 10.1103/PhysRevE.103.022203.

[Survival analysis]. / Análisis de supervivencia.

Survival analysis is a statistical method that assesses the time between an initial event (inclusion of the subject in the study) and a final event, which occurs when the subject presents a previously defined characteristic. Its objective is to estimate, taking into account the time variable, the probability of a certain event occurring. It has the particularity of accepting incomplete participation times and assuming that all the factors involved in the study are homogeneous. There are several methods to calculate the probability of survival, the most used are the Kaplan-Meier and the actuarial.

Preoperative coagulation screening tests in pediatric patients: Clinical relevance and hemorrhagic outcomes of abnormal results.

PURPOSE: Coagulation screening tests in children are still frequently performed in many countries to evaluate bleeding risk. The aim of this study was to assess the management of unexpected prolongations of the activated partial thromboplastin time (APTT) and prothrombine time (PT) in children prior to elective surgery, and the perioperative hemorrhagic outcomes. METHODS: Children with prolonged APTT and/or PT who attended a preoperative anesthesia consultation from January 2013 to December 2018 were included. Patients were grouped according to whether they were referred to a Hematologist or were scheduled to undergo surgery without further investigation. The primary endpoint was to compare perioperative bleeding complications. RESULTS: 1835 children were screened for eligibility. 102 presented abnormal results (5.6%). Of them, 45% were referred to a Hematologist. Significant bleeding disorders were associated with a positive bleeding history, odds ratio of 51 (95% CI 4.8-538.5, P=.0011). No difference in perioperative hemorrhagic outcomes were found between the groups. An additional cost of 181 euros per patient and a preoperative median delay of 43 days was observed in patients referred to Hematology. CONCLUSIONS: Our results suggest that hematology referral has limited value in asymptomatic children with a prolonged APTT and/or PT. Hemorrhagic complications were similar among patients referred and not referred to Hematology. A positive personal or family bleeding history can help identify patients with a higher bleeding risk, thus it should guide the need for coagulation testing and hematology referral. Further efforts should be made to standardize preoperative bleeding assessments tools in children.

Long-term follow-up on the effects of sodium oxybate on daytime sleepiness and sleep architecture in patients with narcolepsy type 1. / Efecto a largo plazo del oxibato de sodio en la somnolencia diurna y en la estructura del sueño en pacientes con narcolepsia de tipo 1.

INTRODUCTION: Sodium oxybate (SXB) was administered for the first time in 1979 in 16 patients with narcolepsy with cataplexy (NT1) that improved up to 20 months. AIMS: To evaluate the effect of SXB on daytime sleepiness and sleep architecture by video-polysomnography in a sample of 23 NT1 adult patients (13 men, 10 females) treated up to three years. Additional goal was to study the presence of sleep comorbidities. PATIENTS AND METHODS: NT1 patients were diagnosed according to International Classification of Sleep Disorders, third edition. We conducted a longitudinal observational study and a video-polysomnography comparing the sleep parameters of patients treated with an initial nocturnal dose of 4.5 g of SXB after six months (FU-1), one year (FU-2) and three years (FU-3) of uninterrupted treatment. Video-polysomnography parameters were analyzed including apnea-hypopnea and periodic leg movements indexes. RESULTS: Patients were HLA-DQB1*06:02 positive except a familial case. Thirteen patients (56%) discontinued SXB treatment over the three-year of the study. The two-nightly doses has been one of the reason for discontinuing treatment as well as insufficient compliance, mild or severe side effects, comorbidities and pregnancy. We found significant differences at FU-2 in sleep structure with an increased in stage N2 (p < 0.03) and a higher periodic leg movements index (p < 0.01). At FU-3 we found significant differences in sleep structure with an increase in stage N1 (p = 0.03) and in comorbidities (periodic leg movements and apnea-hypopnea indexes). There was not significant change on daytime sleepiness during the study. CONCLUSIONS: SXB was administered in low-medium doses. Two-nightly doses and sleep fragmentation linked to sleep comorbidities at long-term lead to drug withdrawal.

TITLE: Efecto a largo plazo del oxibato de sodio en la somnolencia diurna y en la estructura del sueño en pacientes con narcolepsia de tipo 1.Introducción. El oxibato de sodio (SXB) se utilizó en 1979 en 16 enfermos con narcolepsia-cataplejía (NT1) que mejoraron tras 20 meses de tratamiento. Objetivos. Evaluar el efecto del SXB en la somnolencia diurna y en la estructura del sueño mediante videopolisomnografía en una muestra de 23 enfermos de NT1 (13 hombres y 10 mujeres) tratados durante tres años. Investigamos adicionalmente la presencia de comorbilidad. Pacientes y métodos. Diagnosticamos a los enfermos de acuerdo con la Clasificación Internacional de Trastornos del Sueño, tercera edición. Realizamos un estudio longitudinal, observacional y de videopolisomnografía, comparando los parámetros de sueño y los índices de apnea-hipopnea y de movimientos periódicos de las piernas de los enfermos, tratados con una dosis nocturna inicial de 4,5 g de SXB al cabo de seis meses (C-1), un año (C-2) y tres años (C-3) de tratamiento ininterrumpido. Resultados. Todos los enfermos eran HLA-DQB1*06:02 positivos, excepto un caso familiar. Trece enfermos (56%) interrumpieron el tratamiento debido a las dos tomas nocturnas, así como a la presencia de efectos secundarios, comorbilidad y embarazo. Encontramos diferencias significativas en C-2 en la estructura del sueño con aumento del estadio N2 (p < 0,03) y del índice de movimientos periódicos de las piernas (p < 0,01). En el control C-3 encontramos diferencias significativas en la estructura del sueño con aumento del estadio N1 (p = 0,03), y de los índices de movimientos periódicos de las piernas y de apnea-hipopnea. Conclusiones. El SXB se administró en dos dosis nocturnas, lo que, unido a la fragmentación del sueño y a la aparición de comorbilidades, condujo a la interrupción del tratamiento a largo plazo.

[Efficiency of the allergological study in the diagnosis of allergic reactions to beta-lactams]. / Eficiencia del estudio alergológico en el diagnóstico de reacciones a ß-lactámicos.

AIMS: Assessing the rate of ß-lactams-allergic patients who are still labelled as such in their medical records after being performed an allergic test; as well as the rate of no allergic patients who were prescribed one of these antibiotics; and pondering whether the allergic test is hence cost-effective. METHODS: This is a retrospective study developed from 2019 to 2021 focusing on patients suspected of ß-lactams allergy (n=688). By means of an allergy test, it was cleared out if they were actually allergic. Later, we checked if the patient was still labelled as allergic in their medical record. Tracking through the digital health services card, we followed up if the antibiotic was ever prescribed again, and if the drug was then dispensed to the patient. RESULTS: 11.3% of the patients showed hypersensitivity to ß-lactams. Nonetheless, 33.1% of the patients were still considered allergic to these antibiotics in their medical record even though not being such. 32% of the patients - who had their allergy confirmed - had been labelled without the general practitioner's acknowledgment, and 32.8% had even been prescribed a ß-lactam again. CONCLUSIONS: Discarding any allergy to ß-lactams is as important as registering the allergy on medical records after testing the patient. A remarkable quantity of non-allergic patients is still addressed as actual allergic, in spite not being such. Labelling patients as ß-lactams allergic may have consequences, short-term and long-term, for the patient but also for the health service budget.

[Mirror and action observation therapy in children with unilateral spastic cerebral palsy: a feasibility study]. / Terapia en espejo y de observación de la acción en niños con parálisis cerebral espástica unilateral: estudio de viabilidad.

INTRODUCTION: Unilateral spastic cerebral palsy affects upper extremity function. Mirror and home-based action observation therapies may be useful in its treatment. The aim has been to evaluate the feasibility of action observation therapy and mirror therapy programmes combined with home action observation in children with unilateral spastic cerebral palsy. SUBJECTS AND METHODS: The feasibility study included children (6-12 years old), randomly assigned to two groups: action observation therapy and mirror therapy and action observation. Twenty-hour home sessions were conducted, including unimanual and bimanual activities. Feasibility of interventions and procedures, and spontaneous use (Assisting Hand Assessment scale) and functionality (Jebsen Taylor Hand Function Test) of the upper extremity were assessed. RESULTS: Twenty-five families were recruited, with 17 meeting the inclusion criteria. Twelve children (8.75 ± 2.38 years) participated in the study. All families completed the interventions, with no adverse effects. The total intervention dose was above 96%. After the intervention, clinically relevant changes were found in both groups in spontaneous use of the upper extremity, as well as in functionality in the action observation therapy group. CONCLUSIONS: Action observation therapy and mirror therapy combined with action observation therapy are considered feasible to be applied at home and aimed at children with unilateral spastic cerebral palsy.

TITLE: Terapia en espejo y de observación de la acción en niños con parálisis cerebral espástica unilateral: estudio de viabilidad.Introducción. La parálisis cerebral espástica unilateral afecta a la función de la extremidad superior. Las terapias en espejo y de observación de la acción domiciliaria pueden ser útiles en su tratamiento. El objetivo ha sido evaluar la viabilidad de programas de terapia de observación de la acción y terapia en espejo combinada con observación de la acción domiciliaria en niños con parálisis cerebral espástica unilateral. Sujetos y métodos. El estudio de viabilidad incluyó a niños (6-12 años), asignados aleatoriamente a dos grupos: terapia de observación de la acción y terapia en espejo y observación de la acción. Se realizaron 20 sesiones domiciliarias de una hora, y se incluyeron actividades unimanuales y bimanuales. Se evaluó la viabilidad de las intervenciones y procedimientos, y el uso espontáneo (escala Assisting Hand Assessment) y la funcionalidad (Jebsen Taylor Hand Function Test) de la extremidad superior. Resultados. Se reclutaron 25 familias, y 17 cumplieron los criterios de inclusión. Doce niños (8,75 ± 2,38 años) participaron en el estudio. Todas las familias completaron las intervenciones y no existieron efectos adversos. La dosis total de intervención fue superior al 96%. Tras la intervención, se hallaron cambios clínicamente relevantes en ambos grupos en el uso espontáneo de la extremidad superior, así como en la funcionalidad en el grupo de terapia de observación de la acción. Conclusiones. La terapia de observación de la acción y la terapia en espejo combinada con terapia de observación de la acción se consideran viables para aplicarse en el hogar y dirigidas a niños con parálisis cerebral espástica unilateral.

[Design and development of a dietary intervention in children with prediabetes]. / Diseño y desarrollo de una intervención dietética en niños con prediabetes.

INTRODUCTION: Prediabetes is a pathological condition where the blood glucose concentration is higher than normal concentrations, but lower than those considered in the diagnosis of type 2 diabetes mellitus (DM2). Until a few years ago, the prediabetes condition occurred in adults with associated risk factors such as overweight or obesity, sedentary lifestyle, poor eating habits, cardiovascular problems, etc. In recent years it has begun to be detected in children, with the family habits that these children have established becoming increasingly important. MATERIAL AND METHODS: In our study, 29 pre-diabetic children from Pedro Abad, Córdoba, have been evaluated. For this, we have carried out a randomized crossover trial with an intervention group (IG) and a control group (CG), using a dietary intervention with nutritional reinforcement. The main objective of the present study was to determine if the eating habits of pre-diabetic children improved with a dietary intervention based on nutritional education. RESULTS: Through a nutritional evaluation through different tests and visits made to the children, the results corresponding to the first phase of the study, relate an improvement in eating habits and adherence to the Mediterranean Diet by the intervened children. CONCLUSIONS: The eating habits of pre-diabetic children improve with a dietary intervention based on nutritional education, since by providing them with knowledge of the different foods and the contribution of nutrients that they provide us, they can make a better selection of foods.

Embodied transfer of knowledge using dynamic systems concepts in high school: A preliminary study.

The transfer of knowledge among academic subjects and linking different phenomena are crucial education competencies in Bloom's taxonomy of learning goals. From another side, modern cognitive science defines cognition and learning as embodied. The Synthetic Understanding through Movement Analogies (SUMA) educational framework proposes embodied learning of general scientific principles and concepts and knowledge transfer among academic disciplines encompassing sciences, humanities and arts. Accordingly, this research aimed to evaluate the educational potential of teaching a set of Dynamic Systems Theory (DST) concepts through body movement experiences in first-grade high school students. Five classes of high school students (n = 71; 23 girls, 46 boys and 2 non-binaries, aged 12-13 y.) followed a four-week intervention addressed to teaching five DST concepts (order parameter, stability, control parameter, instability and phase transition) and transfer them to biological and social phenomena. Students followed four teaching phases: a) embodied experience, b) reflective observation of the experience, c) abstract conceptualization of the experience using the five general concepts, d) transfer of knowledge through the concepts to different phenomena from biological and social science academic subjects. Students' integration and transfer of knowledge abilities were evaluated pre- and post-intervention through a questionnaire and three open-ended questions. Results were compared using non-parametric Wilcoxon matched-pairs test and effect sizes were calculated through PS dep measures. Students' abilities to integrate and transfer knowledge increased post-intervention (Z = 7.322, p < 0.0001, PSdep = 1). The effect of the intervention points to the potential of teaching general DST concepts through body movement experiences in high school students for achieving the goals of an embodied and unificatory transdisciplinary education.

Assessment of clinical and hemodynamic congestion as predictors of mortality in elderly outpatients with heart failure.

INTRODUCTION: This work aims to evaluate whether a clinical examination and measurement of N-terminal pro-brain natriuretic peptide can predict poor prognosis in outpatients with heart failure. PATIENTS AND METHODS: We carried out a retrospective study from 2010 to 2018 in 238 patients diagnosed with heart failure. At baseline, we evaluated the presence of pulmonary rales and bilateral leg edema (clinical congestion) together with N-terminal pro-brain natriuretic peptide ≥ 1500 pg/mL (hemodynamic congestion). Patients were classified into 4 groups depending on their congestion pattern: no congestion (G1) (n = 50); clinical congestion (G2) (n = 43); hemodynamic congestion (G3) (n = 73); and clinical and hemodynamic congestion (G4) (n = 72). The primary outcome was all-cause mortality at one year of follow-up. RESULTS: A total of 238 patients were included. The mean age was 82 years, 61.8% were women, and 20.7% had reduced left ventricular ejection fraction. Thirty patients died in the first year of follow-up (12.6%). After controlling for confounding variables (sex, recent discharge for heart failure, estimated glomerular filtration rate, and left ventricular ejection fraction), the independent risk of death in each group compared to G1 as the reference group was: G2: HR 4.121 (95%CI 1.131-15.019); G3: HR 2.511 (95%CI 1.007-6.263); and G4: HR 7.418 (95%CI 1.630-33.763). CONCLUSION: Congestion in outpatients with heart failure correlates with prognosis. Patients with both clinical and hemodynamic congestion had the highest risk of all-cause death at one year.