An updated examination of the perception of barriers for pharmacogenomics implementation and the usefulness of drug/gene pairs in Latin America and the Caribbean.

Pharmacogenomics (PGx) is considered an emergent field in developing countries. Research on PGx in the Latin American and the Caribbean (LAC) region remains scarce, with limited information in some populations. Thus, extrapolations are complicated, especially in mixed populations. In this paper, we reviewed and analyzed pharmacogenomic knowledge among the LAC scientific and clinical community and examined barriers to clinical application. We performed a search for publications and clinical trials in the field worldwide and evaluated the contribution of LAC. Next, we conducted a regional structured survey that evaluated a list of 14 potential barriers to the clinical implementation of biomarkers based on their importance. In addition, a paired list of 54 genes/drugs was analyzed to determine an association between biomarkers and response to genomic medicine. This survey was compared to a previous survey performed in 2014 to assess progress in the region. The search results indicated that Latin American and Caribbean countries have contributed 3.44% of the total publications and 2.45% of the PGx-related clinical trials worldwide thus far. A total of 106 professionals from 17 countries answered the survey. Six major groups of barriers were identified. Despite the region's continuous efforts in the last decade, the primary barrier to PGx implementation in LAC remains the same, the "need for guidelines, processes, and protocols for the clinical application of pharmacogenetics/pharmacogenomics". Cost-effectiveness issues are considered critical factors in the region. Items related to the reluctance of clinicians are currently less relevant. Based on the survey results, the highest ranked (96%-99%) gene/drug pairs perceived as important were CYP2D6/tamoxifen, CYP3A5/tacrolimus, CYP2D6/opioids, DPYD/fluoropyrimidines, TMPT/thiopurines, CYP2D6/tricyclic antidepressants, CYP2C19/tricyclic antidepressants, NUDT15/thiopurines, CYP2B6/efavirenz, and CYP2C19/clopidogrel. In conclusion, although the global contribution of LAC countries remains low in the PGx field, a relevant improvement has been observed in the region. The perception of the usefulness of PGx tests in biomedical community has drastically changed, raising awareness among physicians, which suggests a promising future in the clinical applications of PGx in LAC.

Ozonoterapia y cáncer: mito o realidad / Ozone Therapy and Cancer: Myth or Reality

Introducción: El uso clínico de la ozonoterapia se incrementa cada día. Abarca disímiles especialidades médicas como la oncología. En Cuba las investigaciones que evalúan el empleo de la ozonoterapia en pacientes con cáncer son escasas, se precisan estudios científicos que demuestren su eficacia clínica. Objetivo: Explicar los mecanismos farmacológicos y bioquímicos de la ozonoterapia y su uso en el cáncer como terapia complementaria. Métodos: Se consultaron bases de datos disponibles a través de la red de Infomed. Se utilizaron como palabras clave: cáncer, ozonoterapia y estrés oxidativo. Se seleccionaron artículos originales y de revisión sistemáticos de los últimos diez años que evaluaron la utilización de la ozonoterapia en el tratamiento del cáncer. Resultados: El cáncer es per se una enfermedad inductora de estrés oxidativo. La ozonoterapia respalda su utilización como una terapia adyuvante mediante el preacondicionamiento oxidativo que estimula los sistemas antioxidantes de la célula contra la acción de los radicales libres. Así, se logra neutralizar la acción nociva del estrés oxidativo. El ozono incrementa la eficacia de la radio - quimioterapia y ayuda a reducir los efectos secundarios de estos tratamientos al activar los sistemas antioxidantes de la célula. La ozonoterapia se caracteriza por la simplicidad de su aplicación, bajos costos, alta efectividad y prácticamente ausencia de efectos colaterales en comparación con otros tratamientos adyuvantes. Conclusiones: El uso de la ozonoterapia en oncología como una terapia adyuvante representó un recurso terapéutico de gran valor dado por su perfil de efectividad y seguridad. Su uso podría extenderse para disminuir los efectos secundarios y mejorar la calidad de vida de los pacientes(AU)

Introduction: The clinical use of ozone therapy is increasing every day worldwide and it covers different medical specialties, including oncology. However, in Cuba, the investigations that evaluate the use of ozone therapy in cancer patients are scarce, so scientific studies are needed to demonstrate its clinical efficacy. Objective: To explain the pharmacological and biochemical mechanisms of ozone therapy and its use in cancer as a complementary therapy. Methods: Databases available through Infomed Network were consulted. Key words used were cancer, ozone therapy and oxidative stress. Original and systematic review articles from the last ten years that evaluated the use of ozone therapy in the treatment of cancer were selected. Results: Cancer is, as such, a disease that induces oxidative stress. Ozone therapy supports its use as an adjuvant therapy through oxidative pre-conditioning that stimulates the cell's antioxidant systems against the action of free radicals. Thus, it is possible to neutralize the harmful action of oxidative stress. Ozone increases the efficacy of radio-chemotherapy and helps reducing the side effects of these treatments by activating the cell's antioxidant systems. Ozone therapy is characterized by the simplicity of its application, low costs, high effectiveness and with practically no side effects, compared to other adjuvant treatments. Conclusions: The use of ozone therapy in oncology as an adjuvant therapy represented a therapeutic resource of great value given its effectiveness and safety profile. Its use could be extended to improve tissue oxygenation and thus enhance the efficacy of radiochemotherapy, reducing side effects and improving the patients's quality of life(AU)

Symptom's resolution and growth outcome of children with cow's milk protein allergy consuming two hydrolyzed formulas: A retrospective study in Mexico.

Background: Cow's milk protein allergy (CMPA) is the leading cause of food allergy in infants and young children. An extensively hydrolyzed formula (eHF) is the first choice of dietary management, however, not all of them have similar peptide profiles and degree of hydrolysis. The aim of this retrospective study was to investigate the use of two commercially available infant formulas in the clinical management of CMPA in Mexico in terms of symptoms' resolution and growth trajectories. Methods: Medical records of 79 subjects from four sites in Mexico were included to retrospectively evaluate the trajectory of atopic dermatitis, other symptoms of cow's milk protein allergy and growth outcomes. The study formulas were based on hydrolyzed whey protein (eHF-W) and hydrolyzed casein protein (eHF-C). Results: Medical records of 79 patients were enrolled, 3 were excluded from analysis based on previous formula consumption. Seventy-six children with confirmed CMPA based on skin prick test and/or serum specific IgE levels were included in the analysis. 82% of patients (n = 65) consumed the eHF-C, reflecting the doctors' preference for formulas with a higher grade of hydrolysis and the high incidence of positive reactions to beta-lactoglobulin amongst subjects. During their first visit to the doctors, 55% of the subjects consuming the casein-based formula and 45% of subjects consuming the whey-based formula presented with mild or moderate dermatological symptoms. Other frequently reported symptoms included respiratory issues, enteropathies and colitis which improved during the consumption of both formulas. All CMPA-related symptoms showed improvement during formula consumption. During the period of retrospective observation, growth significantly improved for both groups. Conclusion: Consumption of eHF-C and eHF-W effectively improved symptoms' resolution and growth outcomes among children with CMPA in Mexico. More preference was reported towards eHF-C due to its hydrolysate profile and lack of b-lactoglobulin. Trial registration: The study was registered at ClinicalTrials.gov: NCT04596059.

Ancestral Computing for Sustainability: Centering Indigenous Epistemologies in Researching Computer Science Education.

This article offers Ancestral Computing for Sustainability (ACS) to dismantle the logics of settler colonialism that affect accessibility, identities, and epistemologies of computer science education (CSE). ACS centers Indigenous epistemologies in researching CSE across four public universities in the United States. This paper describes Ancestral Computing for Sustainability and explores reflections of two students engaging as researchers in ACS inquiry. Drawing on Indigenous methodologies and Participatory Action Research, they share their reflections as co-researchers in ACS through storywork. These critical reflections include their relationship to computing, observations of the interdependent work within ACS, ethics and sustainability, and their experiences within the focus groups. The article ends with recommendations for furthering ACS as a decolonial approach that centers Indigenous epistemologies in CSE. Recommendations for CSE education include Ancestral Knowledge Systems and adding sustainability as a topic within computing education pathways and building student-faculty relationships based on trust is recommended to foster students' academic and personal growth within CSE education and research.

The Resilience of Pseudomonas aeruginosa to Antibiotics and the Designing of Antimicrobial Peptides to Overcome Microbial Resistance.

Pseudomonas aeruginosa (P. aeruginosa) is a bacterium of medical concern known for its potential to persist in diverse environments due to its metabolic capacity. Its survival ability is linked to its relatively large genome of 5.5-7 Mbp, from which several genes are employed in overcoming conventional antibiotic treatments and promoting resistance. The worldwide prevalence of antibiotic-resistant clones of P. aeruginosa necessitates novel approaches to researching their multiple resistance mechanisms, such as the use of antimicrobial peptides (AMPs). In this review, we briefly discuss the epidemiology of the resistant strains of P. aeruginosa and then describe their resistance mechanisms. Next, we explain the biology of AMPs, enlist the present database platforms that describe AMPs, and discuss their usefulness and limitations in treating P. aeruginosa strains. Finally, we present 13 AMPs with theoretical action against P. aeruginosa, all of which we evaluated in silico in this work. Our results suggest that the AMPs we evaluated have a carpet-like mode of action with a membranolytic function in Gram-positive and Gramnegative bacteria, with a clear potential of synthesis for in vitro evaluation.

Polimorfismos en genes de reparación del daño al material genético y cáncer de pulmón

RESUMEN Introducción: El cáncer de pulmón es uno de los principales problemas de salud en Cuba y el mundo. Las diferencias genéticas a causa de polimorfismos de un solo nucleótido, son factores importantes involucrados en la susceptibilidad genética a esta enfermedad. En Cuba son escasos los datos disponibles sobre los polimorfismos de un solo nucleótido y su posible influencia sobre la aparición y pronóstico del cáncer. Objetivo: Exponer la importancia del estudio de los polimorfismos de un solo nucleótido en genes de la reparación del daño al ADN en el cáncer de pulmón. Desarrollo: El tabaquismo es el principal factor de riesgo para desarrollar cáncer de pulmón, sin embargo, aproximadamente el 15 % de los fumadores desarrollará la enfermedad. Los polimorfismos de un solo nucleótido son factores involucrados en la predisposición genética a las enfermedades. La presencia de variantes polimórficas puede modificar la eficacia de los sistemas de reparación, favoreciendo la aparición de genotoxicidad y/o mutagénesis. También pueden modificar la respuesta a los tratamientos oncológicos y la supervivencia de los pacientes. Por consiguiente, además de ser marcadores de susceptibilidad, los polimorfismos se consideran marcadores de pronóstico individual de respuesta a la terapia. Este trabajo enfatiza la utilidad de su evaluación como biomarcadores clínicos y de susceptibilidad genética a enfermedades en la población cubana. Conclusiones: El estudio de polimorfismos de un solo nucleótido permitirá el abordaje personalizado de enfermedades oncológicas, lo cual podría contribuir a su detección temprana y a definir grupos de individuos con alto riesgo de padecer cáncer de pulmón.

ABSTRACT Introduction: Lung cancer is one of the main health problems in Cuba and worldwide. Genetic differences due to single nucleotide polymorphisms are important factors involved in the genetic susceptibility to this disease. In Cuba, there are scarce data available on single nucleotide polymorphisms and their possible influence on the incidence and prognosis of cancer. Objective: To expose the importance of the study of single nucleotide polymorphisms in DNA damage repair genes in lung cancer. Results: Smoking is the main risk factor for developing lung cancer, however, approximately 15 % of smokers will develop the disease. Single nucleotide polymorphisms are important factors involved in genetic predisposition to diseases. The presence of polymorphic variants can modify the efficacy of repair systems, favoring the occurrence of genotoxicity and/or mutagenesis. They can also modify the response to oncological treatments and patient´s survival. Therefore, in addition to being susceptibility markers, polymorphisms are considered individual prognostic markers of response to therapy. This work emphasizes the usefulness of evaluating single nucleotide polymorphisms as clinical and susceptibility biomarkers in the Cuban population. Conclusions. The study of single nucleotide polymorphisms will allow a personalized approach to oncological diseases, which could contribute to define groups of individuals at high risk of getting lung cancer, therefore, early disease detection.

Differences between peptide profiles of extensive hydrolysates and their influence on functionality for the management of cow's milk allergy: A short review.

Extensively hydrolyzed formulas (eHFs) are recommended for the dietary management of cow's milk protein allergy (CMPA) in non-exclusively breastfed infants. Studies show that peptide profiles differ between eHFs. This short review aims to highlight the variability in peptides and their ability to influence allergenicity and possibly the induction of tolerance by different eHFs. The differences between eHFs are determined by the source of the protein fraction (casein or whey), peptide size-distribution profile and residual ß-lactoglobulin which is the most immunogenic and allergenic protein in bovine milk for human infants as it is not present in human breastmilk. These differences occur from the hydrolyzation process which result in variable IgE reactivity against cow's milk allergen epitopes by subjects with CMPA and differences in the Th1, Th2 and pro-inflammatory cytokine responses elicited. They also have different effects on gut barrier integrity. Results suggest that one particular eHF-casein had the least allergenic potential due to its low residual allergenic epitope content and demonstrated the greatest effect on restoring gut barrier integrity by its effects on mucin 5AC, occludin and Zona Occludens-1 in human enterocytes. It also increased the production of the tolerogenic cytokines Il-10 and IFN-γ. In addition, recent studies documented promising effects of optional functional ingredients such as pre-, pro- and synbiotics on the management of cow's milk allergy and induction of tolerance, in part via the induction of the production of short chain fatty acids. This review highlights differences in the residual allergenicity, peptide size distribution, presence of optional functional ingredients and overall functionality of several well-characterized eHFs which can impact the management of CMPA and the ability to induce immune tolerance to cow's milk protein.

Factors associated with endoparasites and ectoparasites in domiciled dogs in the metropolitan area of Toluca, México / Factores asociados con la presencia de endoparásitos y ectoparásitos en perros domiciliados de la zona metropolitana de Toluca, México.

Introduction: Endoparasites and ectoparasites in dogs are of global distribution. The close relationship between dogs and man implies a risk for the transmission of zoonotic parasites. Therefore, it is necessary to determine the parasites hosted by dogs in specific areas and the factors associated with their presence. Objectives: To identify and to estimate the prevalence of endoparasites and ectoparasites in domiciled dogs in the Metropolitan area of Toluca, México, and the prevalence of D. caninum in fleas of the genus Ctenocephalides spp. Materials and methods: We collected samples from 402 domiciled dogs in four reference hospitals in the area in Toluca. We diagnosed endoparasites using direct smear, flotation, and sedimentation techniques and we performed the taxonomic identification of ectoparasites. Finally, the molecular diagnosis of D. caninum in fleas was made using the polymerase chain reaction technique (PCR). Results: A total of 37.2% of dogs were positive for endoparasites; the genera or species identified were Toxocara spp., Giardia spp., Ancylostoma spp., Cystoisospora spp., D. caninum, Taenia spp., and Trichuris vulpis; the prevalence of ectoparasites was 13.13%. We identified fleas of the species Ctenocephalides felis, Ctenocephalides canis; only one animal was parasitized with Rhipicephalus sanguineus and another one with Trichodectes canis; the prevalence of D. caninum in fleas was 9.5%. Conclusion: The prevalence of endoparasites was 37.2% while that of ectoparasites was 13.1%; this is the first analysis of endoparasites and ectoparasites conducted in the same population of dogs in México together with the molecular diagnosis of D. caninum in fleas.

Introducción. Los endoparásitos y ectoparásitos en perros son de distribución mundial. La estrecha relación entre los perros y el hombre implica un riesgo de transmisión de parasitosis zoonóticas, por lo cual es necesario conocer las especies que parasitan a los perros de esta zona y determinar los factores asociados. Objetivos. Estimar la prevalencia de endoparásitos y ectoparásitos, identificarlos en perros domiciliados de la zona metropolitana de Toluca, México, y determinar la prevalencia de Dipyilidium caninum en pulgas del género Ctenocephalides spp. Materiales y métodos. Se recolectaron muestras de 402 perros que fueron llevados a consulta en cuatro hospitales de referencia de Toluca. En el diagnóstico de endoparásitos, se utilizaron las técnicas coproparasitoscópicas de frotis directo, flotación y sedimentación; además, se recolectaron ectoparásitos para su identificación taxonómica. Por último, la detección de D. caninum en pulgas se hizo mediante la reacción en cadena de la polimerasa (PCR). Resultados. El 37,2 % de los perros resultó positivo para endoparásitos. Los géneros o especies identificados fueron Toxocara spp., Giardia spp., Ancylostoma spp., Cystoisospora spp., D. caninum, Taenia spp. y Trichuris vulpis. Se determinó una prevalencia de ectoparásitos de 13,13 %. Se identificaron pulgas de las especies Ctenocephalides felis y C. canis, en tanto que solo un animal presentó parasitosis por Rhipicephalus sanguineus y otro por Trichodectes canis. La prevalencia de D. caninum en pulgas fue del 9,5 %. Conclusión. La prevalencia de endoparásitos fue de 37,2 % y, la de ectoparásitos, de 13,1 %. Por primera vez en México se hizo un análisis de endoparásitos y ectoparásitos en una misma población de perros, así como el diagnóstico molecular de D. caninum.

Prevalence of ABCB1 3435C>T polymorphism in the Cuban population.

OBJECTIVES: ABCB1 gene polymorphisms can modify P-glycoprotein function with clinical consequences. METHODS: The 3435C>T polymorphism prevalence was analyzed using oligonucleotide probes and next-generation sequencing in 421 unrelated healthy individuals living in Cuba. Data were stratified by gender, ethnic background and residence. The genotype and allelic frequencies were determined. RESULTS: The genotype distribution met the Hardy-Weinberg equilibrium assumption. The allelic frequency was 63.5% for the 3435C variant. The genotype frequencies were 41.1% for CC, 44.9% for CT and 14.0% for TT. The allele and genotype distributions differed between individuals living in La Habana and Santiago de Cuba (p<0.05) when ethnic background was analyzed. The allelic distribution was similar among Admixed and Black subjects, and they differed from Caucasians. The CC genotype was equally distributed among Admixed and Black subjects, and they differed from Caucasians. The TT genotype frequency differed between Caucasians and Admixed. The CT genotype was distributed differently among the three groups. Similar distribution was obtained in Brazilians, whereas some similarities were observed in African, Spanish and Chinese populations, consistent with the mixed Cuban ethnic origin. CONCLUSIONS: This is the first report on allele and genotype frequencies of the 3435C>T polymorphism in Cuba, which may support personalized medicine programs.

Factores asociados con la presencia de endoparásitos y ectoparásitos en perros domiciliados de la zona metropolitana de Toluca, México / Factors associated with endoparasites and ectoparasites in domiciled dogs in the metropolitan area of Toluca, México

Resumen | Introducción. Los endoparásitos y ectoparásitos en perros son de distribución mundial. La estrecha relación entre los perros y el hombre implica un riesgo de transmisión de parasitosis zoonóticas, por lo cual es necesario conocer las especies que parasitan a los perros de esta zona y determinar los factores asociados. Objetivos. Estimar la prevalencia de endoparásitos y ectoparásitos, identificarlos en perros domiciliados de la zona metropolitana de Toluca, México, y determinar la prevalencia de Dipyilidium caninum en pulgas del género Ctenocephalides spp. Materiales y métodos. Se recolectaron muestras de 402 perros que fueron llevados a consulta en cuatro hospitales de referencia de Toluca. En el diagnóstico de endoparásitos, se utilizaron las técnicas coproparasitoscópicas de frotis directo, flotación y sedimentación; además, se recolectaron ectoparásitos para su identificación taxonómica. Por último, la detección de D. caninum en pulgas se hizo mediante la reacción en cadena de la polimerasa (PCR). Resultados. El 37,2 % de los perros resultó positivo para endoparásitos. Los géneros o especies identificados fueron Toxocara spp., Giardia spp., Ancylostoma spp., Cystoisospora spp., D. caninum, Taenia spp. y Trichuris vulpis. Se determinó una prevalencia de ectoparásitos de 13,13 %. Se identificaron pulgas de las especies Ctenocephalides felis y C. canis, en tanto que solo un animal presentó parasitosis por Rhipicephalus sanguineus y otro por Trichodectes canis. La prevalencia de D. caninum en pulgas fue del 9,5 %. Conclusión. La prevalencia de endoparásitos fue de 37,2 % y, la de ectoparásitos, de 13,1 %. Por primera vez en México se hizo un análisis de endoparásitos y ectoparásitos en una misma población de perros, así como el diagnóstico molecular de D. caninum.

Abstract | Introduction: Endoparasites and ectoparasites in dogs are of global distribution. The close relationship between dogs and man implies a risk for the transmission of zoonotic parasites. Therefore, it is necessary to determine the parasites hosted by dogs in specific areas and the factors associated with their presence. Objectives: To identify and to estimate the prevalence of endoparasites and ectoparasites in domiciled dogs in the Metropolitan area of Toluca, México, and the prevalence of D. caninum in fleas of the genus Ctenocephalides spp. Materials and methods: We collected samples from 402 domiciled dogs in four reference hospitals in the area in Toluca. We diagnosed endoparasites using direct smear, flotation, and sedimentation techniques and we performed the taxonomic identification of ectoparasites. Finally, the molecular diagnosis of D. caninum in fleas was made using the polymerase chain reaction technique (PCR). Results: A total of 37.2% of dogs were positive for endoparasites; the genera or species identified were Toxocara spp., Giardia spp., Ancylostoma spp., Cystoisospora spp., D. caninum, Taenia spp., and Trichuris vulpis; the prevalence of ectoparasites was 13.13%. We identified fleas of the species Ctenocephalides felis, Ctenocephalides canis; only one animal was parasitized with Rhipicephalus sanguineus and another one with Trichodectes canis; the prevalence of D. caninum in fleas was 9.5%. Conclusion: The prevalence of endoparasites was 37.2% while that of ectoparasites was 13.1%; this is the first analysis of endoparasites and ectoparasites conducted in the same population of dogs in México together with the molecular diagnosis of D. caninum in fleas.

Tratamiento quirúrgico de la ptosis palpebral congénita / Surgical treatment of congenital palpebral ptosis / Tratamento cirúrgico da ptose palpebral congênita

RESUMEN Se presenta el caso de un paciente masculino, de 4 años de edad, producto de parto distócico (por cesárea), gestación a término, (41.0 semana), con un peso al nacer de 7.10 libras (normopeso) procedencia urbana, con antecedentes de haber sido sometido a tratamiento quirùrgico por una Obstrucción de vías lagrimales, a la edad de un año. Al examen oftalmológico se constata, caída de ambos párpados superiores a nivel del tercio medio del área pupilar; inserción baja del borde cantal superior externo de ambos párpados superiores, abundante lagrimeo y secreciones oculares; miopía pequeña y ambliopía bilateral ligera. Se observó además, trastornos posturales por elevación del mentón para mirar. Valorado por Neurología, se descartó causa neurológica de la ptosis. Estudiado por Oculoplastia, se decide tratamiento quirúrgico, consistente en acortamiento del músculo elevador de ambos parpados, por vía anterior y excursión de dicho músculo, en 6 mm. El resultado postquirúrgico fue satisfactorio.

ABSTRACT We present the case of a male patient, 4 years old, product of dystocic delivery (by caesarean section), term gestation, (41.0 weeks), with a birth weight of 7.10 pounds (normal weight) urban origin, with a history of having undergone surgical treatment for a tear duct obstruction, at the age of one year. At the ophthalmological examination, it is noted that both upper eyelids fall at the level of the middle third of the pupil area; low insertion of the upper outer canthal edge of both upper eyelids, abundant tearing and ocular secretions; Small myopia and slight bilateral amblyopia. It was also observed postural disorders due to elevation of the chin to look. Valued by Neurology, neurological cause of ptosis was ruled out. Studied by Oculoplasty, surgical treatment is decided, consisting of shortening of the elevating muscle of both eyelids, by anterior route and excursion of said muscle, in 6 mm. The post-surgical result was satisfactory.

RESUMO Apresentamos o caso de um paciente do sexo masculino, 4 anos, produto de parto distócico (por cesariana), gestação a termo (41,0 semanas), com peso ao nascer de 7,10 libras (peso normal) origem urbana, com histórico de tratamento cirúrgico para obstrução do canal lacrimal, com um ano de idade. No exame oftalmológico, nota-se que ambas as pálpebras superiores caem para o terço médio da área pupilar; baixa inserção da borda cantal externa superior de ambas as pálpebras superiores, lacrimejamento abundante e secreções oculares; Miopia pequena e ambliopia bilateral leve. Também foram observados distúrbios posturais devido à elevação do queixo para olhar. Avaliada pela Neurologia, a causa neurológica da ptose foi descartada. Estudado por oculoplastia, o tratamento cirúrgico é decidido, consistindo em encurtamento do músculo elevador de ambas as pálpebras, por via anterior e excursão do referido músculo, em 6 mm. O resultado pós-cirúrgico foi satisfatório.

Leiomiosarcoma de la vena cava superior con extensión a las cavidades cardíacas derechas / Leiomyosarcoma of the superior vena cava with extension to the right heart cavities

RESUMEN Fundamento: el leiomiosarcoma de la vena cava superior es una enfermedad rara y más cuando se extiende a las cavidades cardíacas. Objetivo: presentar una paciente con leiomiosarcoma de la vena cava superior que se extendió de forma intraluminal a las cavidades derechas del corazón lo que provocó obstrucción de las mismas y choque cardiogénico. Caso clínico: paciente de 45 años de edad, blanca, femenina sin antecedentes mórbidos de salud, la cual presentó enrojecimiento del rostro y agotamiento de las extremidades al peinarse. Se le realiza tomografía axial computarizada donde se identificó una lesión sugestiva de trombosis, se decide su traslado hacia un centro especializado, se llega a la conclusión de que la paciente era portadora de una lesión tumoral no trombótica, la cual resultó ser benigna en una biopsia realizada por lo cual se decide seguimiento. La paciente reingresa en estado de shock cardiogénico por progresión de la enfermedad y se decide su tratamiento quirúrgico de emergencia, durante la cirugía fallece. Conclusiones: el leiomiosarcoma de la vena cava superior es una enfermedad rara, existen pocos reportes en la literatura sobre este padecimiento. Se presentó un caso en el cual el tumor se extendía de forma intraluminal a las cavidades cardíacas derechas (aurícula y ventrículo).

ABTRACT Background: the leiomyosarcoma of the superior cava vein is a rare illness and more when it extends to the cardiac cavities. Objective: to present to the medical community a female patient with leiomyosarcoma of the superior cava vein that extended intraluminal form to the right cavities of the heart causing obstruction and cardiogenic shock. Clinical case: a 45-year-old white female patient with no morbid health history, who presented redness of the face and exhaustion of the extremities when combing. A computerized axial tomography was performed where a lesion suggestive of thrombosis was identified. It was decided to transfer her to a specialized center, in which it is concluded that the patient was a carrier of a non-thrombotic tumor lesion, which turned out to be benign in a biopsy done for which follow-up is decided. The patient reenters in a state of cardiogenic shock due to progression of the disease, which is why her emergency surgical treatment is decided and die during surgery. Conclusions: the leiomyosarcoma of the superior vena cava is a rare illness, with few reports in the literature. A case in which the tumor extended intraluminally to the right cardiac cavities (atrium and ventricle) is presented.

Resultados del tratamiento con pleurostomía en pacientes con neumotórax espontáneo / Outcomes of Pleurostomy Treatment in Patients with Spontaneous Pneumothorax

RESUMEN Introducción: La presencia de aire dentro de la cavidad pleural es definida como neumotórax. El tratamiento quirúrgico inicial es la pleurostomía, que puede acarrear complicaciones, relacionadas con varios factores, entre los cuales se encuentra el diámetro de la sonda intratorácica utilizada. Objetivo: Evaluar los resultados del tratamiento con pleurostomía en pacientes con neumotórax espontáneo en el Hospital Universitario Manuel Ascunce Domenech. Método: Se realizó un estudio descriptivo longitudinal retrospectivo desde septiembre de 2012 hasta septiembre de 2017. Se estudiaron 63 pacientes afectos de neumotórax espontáneos que recibieron pleurostomía como tratamiento inicial. Resultados: Los neumotórax espontáneos primarios representaron 56 por ciento de los casos. Del total de pacientes, 82 por ciento eran fumadores. En todos los pacientes el síntoma predominante fue el dolor. Las complicaciones fueron más frecuentes con el uso de sondas pleurales de menor diámetro (86 por ciento). Conclusiones: El neumotórax espontáneo primario fue el de mayor frecuencia. Las causas predominantes en el neumotórax secundario fueron las bulas de enfisema y la enfermedad pulmonar obstructiva crónica. En la totalidad de los casos, estuvo presente algunos de los síntomas del síndrome pleural con predominancia absoluta del dolor. El mayor número de complicaciones se presentó en pacientes fumadores(AU)

ABSTRACT Introduction: The presence of air within the pleural cavity is defined as pneumothorax. The initial surgical treatment is pleurostomy, which can lead to complications associated with several factors, among which is the diameter of the intrathoracic probe that is used. Objective: To evaluate the outcomes of the treatment with pleurostomy in patients with spontaneous pneumothorax at Manuel Ascunce Domenech University Hospital. Method: A retrospective, longitudinal, descriptive study was conducted from September 2012 to September 2017. We studied 63 patients affected by spontaneous pneumothorax who received pleurostomy as initial treatment. Results: Primary spontaneous pneumothorax accounted for 56 percent of the cases. From the total amount of patients, 82 percent were smokers. In all patients, the predominant symptom was pain. Complications were more frequent with the use of pleural probes of smaller diameter (86 percent). The primary spontaneous pneumothorax was the most frequent. The predominant causes of secondary pneumothorax were bullous emphysema and chronic obstructive pulmonary disease. In all the cases, some of the symptoms of pleural syndrome with absolute predominance of pain were present. The greatest number of complications occurred in smoking patients. Conclusions: Pleurostomy, with the use of the drainage catheter, is the initial treatment for all patients with spontaneous pneumothorax in our hospital, regardless of the diameter of the probe to be used according to the type of pneumothorax (primary or secondary)(AU)

Análisis de los resultados de la evaluación multidisciplinaria de pacientes con cáncer pulmonar / Outcome Analysis of the Multidisciplinary Evaluation of Patients with Lung Cancer

RESUMEN Introducción: El cáncer de pulmón representa una gran carga de enfermedad a nivel global. La centralización de la atención de los pacientes para el diagnóstico y tratamiento añade un salto de calidad en la atención sanitaria. Objetivo: Evaluar los resultados de la consulta multidisciplinaria de cáncer pulmonar en la provincia de Camagüey. Métodos: Se realizó un estudio observacional analítico retrospectivo desde noviembre de 2015 hasta febrero de 2017. El universo quedó conformado por 182 pacientes evaluados en la consulta multidisciplinaria con cáncer pulmonar. La muestra, la cual fue de tipo probabilística, la constituyeron los 182 pacientes diagnosticados de cáncer pulmonar, coincidiendo con el universo. Se trabajó con una población objetiva conformada por todos los pacientes adultos que acudieron a la consulta antes mencionada y que fueron diagnosticados de cáncer pulmonar en la sistemática diagnóstica. Resultados: Prevaleció el sexo masculino y el grupo de edad entre 60 y 69 años. Todos los pacientes tenían relación con el hábito de fumar, y al menos, una radiografía de tórax al momento de la primera evaluación. El síntoma fundamental fue la tos. Más de la mitad de los pacientes acudieron antes de 60 días de comienzo de los síntomas, y recibieron el diagnóstico e iniciaron el tratamiento antes del mes. El adenocarcinoma fue el tipo histológico más frecuente, como la localización tumoral periférica, el estado funcional se deterioró en relación con la etapa clínica y el tratamiento quirúrgico fue el más indicado. Conclusiones: La atención multidisciplinaria en pacientes con cáncer pulmonar se ha convertido en el estándar de cuidado. La centralización de la atención, así como la aplicación de una vía clínica optimiza el uso de la tecnología disponible adecuada a cada caso en particular(AU)

ABSTRACT Introduction: Lung cancer represents a great burden of disease worldwide. Patient care centralization for diagnosis and treatment adds a leap in the quality of health care. Objective: To evaluate the results of the multidisciplinary consultation of lung cancer in the province of Camagüey. Methods: A retrospective, analytical, observational study was conducted from November 2015 to February 2017. The study population consisted of 182 patients with lung cancer who were evaluated in the multidisciplinary consultation. The sample, which was probabilistic, was made up of 182 patients diagnosed with lung cancer, coinciding with the population. We worked with an objective population made up of all the adult patients who attended the aforementioned consultation and who were diagnosed with lung cancer in the diagnostic systematics. Results: There was a predominance of the male sex and the age group between 60 and 69 years old. All the patients were associated with the smoking habit, and had at least one chest radiograph at the time of the first evaluation. The main symptom was coughing. More than half of the patients came before 60 days after the onset of symptoms, were diagnosed and started treatment before the month. The adenocarcinoma was the most frequent histological type, as the peripheral tumor location. The functional state was deteriorated in relation to the clinical stage and the surgical treatment was the most indicated. Conclusions: Multidisciplinary care in patients with lung cancer has become the standard of care. The centralization of care, as well as the application of a clinical approach, optimizes the use of available technology appropriate to each particular case(AU)

Uso de estreptoquinasa recombinante intrapleural en una mujer embarazada con empiema pleural / Use of intrapleural recombinant streptokinase in a pregnant woman with pleural empyema

RESUMEN Fundamento: la neumonía complica el 0,78-2,7 por 1 000 embarazos al estar en riesgo la madre y el feto. El empiema como complicación de una neumonía en una paciente embarazada agrega un alto índice de morbimortalidad para la madre y el feto si no se actúa de forma rápida. Objetivo: describir el caso de una mujer de 33 semanas de embarazo, la cual desarrolló un empiema pleural producto de una complicación de una neumonía adquirida en la comunidad tratada con fibrinólisis intrapleural. Caso clínico: paciente gestada de 33 semanas, asmática ingresada en el servicio de terapia intensiva del Hospital Universitario Manuel Ascunce Domenech con el diagnóstico de neumonía grave adquirida en la comunidad complicada con derrame paraneumónico el cual evolucionó hacia el empiema. El mismo fue tratado con tubo de toracostomía y terapia fibrinolítica, con buena evolución clínica y radiológica. Conclusiones: la estreptoquinasa recombinante se puede utilizar de manera segura y efectiva para el manejo del empiema pleural, como agente fibrinolítico intrapleural, durante el embarazo.

ABSTRACT Background: pneumonia complicates 0,78-2,7 per 1 000 pregnancies placing the mother and the fetus at risk. Empyema as a complication of pneumonia in a pregnant patient adds a high rate of morbidity and mortality to the mother and the fetus if one does not act quickly. Objective: to present the case of a pregnant woman of 33 weeks who developed a pleural empyema resulting from acquired pneumonia. Clinical case: 33-week gestated patient, asthmatic admitted to the intensive care unit of the University Hospital Manuel Ascunce Domenech with the diagnosis of severe pneumonia acquired in the community complicated with para-pneumonic effusion, which evolved into empyema. It was treated with a thoracotomy tube and fibrinolytic therapy, with good clinical and radiological evolution. Conclusions: Recombinant streptokinase can be used safely and effectively for the management of PE, as an intrapleural fibrinolytic agent, during pregnancy.

El cáncer del pulmón: algunas consideraciones epidemiológicas, del diagnóstico y el tratamiento / Lung cancer: some epidemiologic, diagnoses and treatment considerations

RESUMEN Fundamento: el cáncer es una de las causas principales de muerte alrededor del mundo. En el año 2012 hubo 14 millones de casos nuevos, así como 8,2 millones de muertes relacionadas. Dentro de todas las localizaciones del cáncer, es el pulmón el de mayor incidencia y mortalidad para el hombre y en el caso de la mujer ocupa el segundo lugar. Objetivos: realizar una actualización en aspectos epidemiológicos, del diagnóstico, así como del tratamiento del cáncer pulmonar a nivel global, regional y local. Métodos: se realizó una búsqueda en las bases de datos Pub Med, SciELO, Medline, Cochrane, Lilacs, mediante EndNote y Clinical Key, en un período desde el primero de septiembre al 15 de diciembre de 2017. Se emplearon las palabras claves: lung cancer, epidemiology, diagnostic, treatment, screening. Se realizó una revisión bibliográfica de un total 302 artículos de ellos se utilizaron 40 citas la mayoría de ellas de los últimos tres y cinco años. Se consideraron para la revisión, artículos originales, revisiones a texto completo, así como artículos de opinión. Desarrollo: se abordaron aspectos del cáncer pulmonar relacionados con estadísticas globales, regionales y locales, así como de los indicadores de impacto, aspectos relacionados con el diagnóstico precoz a través del tamizaje y elementos novedosos de ensayos clínicos relacionados con la aplicación de la vacuna CIMAvax-EGF. Conclusiones: con el elevado aporte del cáncer de pulmón a la morbilidad y mortalidad general en Cuba y en particular en la provincia de Camagüey, así como el consecuente impacto negativo en la duración y calidad de vida de la población, se considera pertinente y necesario el diseño de un programa integral asistencial organizacional para atender a pacientes con esta terrible y letal enfermedad.

ABSTRACT Background: cancer is one of the leading causes of death around the world. In 2012, there were 14 million of new cases, as well as 8.2 million related deaths. Within all cancer locations, the lung is the one with the highest incidence and mortality for men and in the case of women, it occupies the second place. Objectives: to carry out an update on epidemiological aspects of diagnosis, as well as the treatment of lung cancer at a global, regional and local level. Methods: a search on Pub Med, SciELO, Medline, Cochrane, Lilacs databases using EndNote and Clinical Key was carried out, from September 1 to December 15, 2017. The following keywords were used: lung cancer, epidemiology, diagnostic, treatment, screening. A bibliographic review of a total of 302 articles was made, of them 40 citations were used, most of them from the last three and five years. Original articles, full-text reviews, as well as opinion articles were considered for the review. Development: aspects of lung cancer, related to global, regional and local statistics, as well as impact indicators, aspects related to early diagnosis through screening and novel elements of clinical trials related to the application of the vaccine CIMAvax-EGF were addressed. Conclusions: with the high contribution of lung cancer to morbidity and general mortality in Cuba and in particular in Camagüey province, as well the negative consequent impact on the duration and quality of life of the population, it is considered necessary to design a comprehensive organizational assistance program to care for patients with this terrible and lethal disease.

Evaluación de parámetros de banda ancha en la determinación de dominancia cerebral durante la hipnosis / Evaluation of wide band parameters in the determination of cerebral dominance during hypnosis

Se realizó un estudio cuasiexperimental de 21 estudiantes que cursaban la carrera de medicina, los cuales se encontraban en estado de hipnosis, atendidos en el Hospital General Docente Dr Juan Bruno Zayas Alfonso de Santiago de Cuba, desde septiembre del 2014 hasta junio del 2015, con vistas a identificar las medidas espectrales de banda ancha sensibles en la determinación de la dominancia cerebral durante dicho estado. Entre las variables analizadas figuraron: nivel de profundidad hipnótica, medidas espectrales de banda ancha y derivación. Se utilizó el estadígrafo false discovery rate como prueba de hipótesis para validar la información estadística y el análisis de varianza multivariado Manova. Los resultados revelaron que el poder relativo theta resultó ser la medida espectral con modificaciones más significativas y mostró un predominio discreto de la energía en el hemisferio izquierdo. Se concluyó que este hallazgo tuvo lugar como consecuencia de las tareas indicadas durante la hipnosis

A quasi-experiment of 21 students that were studying the medicine career, who were in hypnosis state, assisted in Dr Juan Bruno Zayas Alfonso Teaching General Hospital in Santiago de Cuba, was carried out from September, 2014 to June, 2015, aimed at identifying the wide band spectral measures sensitive in the determination of cerebral dominance during this state. Among the analyzed variables we can mention: level of hypnotic depth and spectral measures of wide band and derivation. The false discovery rate stadigraph was used as hypothesis test to validate the statistical information and the Manova multivaried analysis of variance. The results revealed that theta relative power was the spectral measure with more significant modifications and showed a discreet prevalence of energy in the left hemisphere. It was concluded that this finding took place as a consequence of the given tasks during hypnosis

Malnutrition negatively impacts the quality of life of patients with cirrhosis: An observational study.

AIM: To verify how malnutrition is related to health-related quality of life (HRQL) impairment in patients with cirrhosis. METHODS: Data was retrospectively abstracted from medical records and obtained by direct interview. We included patients with cirrhosis from any etiology, evaluated at the Liver Clinic from Gastroenterology Department in a tertiary healthcare center, from June 2014 to June 2016. Child-Pugh score, data about complications, and demographic, clinical and anthropometric characteristics of patients were obtained. Nutritional status was evaluated by the Subjective Global Assessment (SGA). HRQL was evaluated through the Chronic Liver Disease Questionnaire. Patients were requested to assess their global HRQL with the following code: 0 = impairment of HRQL, when it was compared with other healthy subjects; 1 = good HRQL, if it was similar to the quality of life of other healthy subjects. To compare the primary outcome between malnourished and well-nourished groups, the χ2 test, Fisher's exact test or Student's t-test were used, based on the variable type. Associations between predictor variables and deterioration of HRQL were determined by calculating the hazard ratio and 95% confidence interval using Cox proportional hazards regression. RESULTS: A total of 127 patients with cirrhosis were included, and the mean age was 54.1 ± 12.3 years-old. According to Child-Pugh scoring, 25 (19.7%) were classified as A (compensated), 76 (59.8%) as B, and 26 (20.5%) as C (B/C = decompensated). According to SGA, 58 (45.7%) patients were classified as well-nourished. Sixty-nine patients identified HRQL as good, and 76 patients (59.8%) perceived impairment of their HRQL. Multivariate analysis to determine associations between predictor variables and self-perception of an impairment of HRQL found strong association with malnutrition (P < 0.0001). The most important impaired characteristics in malnourished patients were: Presence of body pain, dyspnea on exertion with daily activities, decreased appetite, generalized weakness, trouble lifting or carrying heavy objects, and decreased level of energy (P < 0.0001). CONCLUSION: Malnutrition is a key factor related to impairment of HRQL in patients with cirrhosis.

Infección por VIH/SIDA y múltiples enfermedades oportunistas simultáneas / HIV/AIDS Infection and multiple simultaneous opportunistic diseases

La infección por Virus de Inmunodeficiencia Humana y el Síndrome de Inmunodeficiencia Adquirida en fase avanzada de la infección, propician condiciones de vulnerabilidad para las infecciones oportunistas. Caso Clínico: Paciente femenina de 21 años, sin antecedentes conocidos, se presentó a emergencia con historia de convulsión tónico-clónica de dos minutos de duración, acompañada de oculogiros, sin relajación de esfínteres; pérdida ponderal de ocho meses de evolución, acompañada de astenia, adinamia, hiporexia y tos seca. En el examen físico de tórax: a la inspección de piel se observó costra serohematica impetiginizada en hemitórax izquierdo, sin cruzar la línea media, acompañado de dolor y seguía el trayecto dermatomérico; a la auscultación, crépitos escasos en lóbulo medio de pulmón derecho. Durante la evaluación de ingreso presentó dos episodios convulsivos similares. Se practicó radiografía de tórax posteroanterior, se observó masa circular en lóbulo medio de pulmón derecho; hematología demostró falla renal aguda, anemia normocitica-normocromica y sospecha de inmunosupresión. Se diagnosticó Infección por Virus de Inmunodeficiencia Humana/Síndrome Inmunodeficiencia Adquirida mediante serología y conteo de linfocitos CD4, histoplasmosis sistémica, herpes zóster y tuberculosis pulmonar; se instauró tratamiento. Al finalizar terapia y la evolución clínica se decide su egreso, para control ambulatorio. Conclusión: la intervención temprana y la terapia adecuada son esenciales para la evolución y desenlace clínico; la paciente tuvo evolución satisfactoria posterior al inicio de una terapia antifimica profiláctica, se egresó y se dio control en consulta externa de Infectología del Hospital Escuela Universitario...(AU)

Thoracoscopic sympathicotomy for disabling palmar hyperhidrosis: a prospective randomized comparison between two levels.

BACKGROUND: Thoracoscopic sympathicotomy is highly effective in treating disabling palmar hyperhidrosis. The ideal level to maximize efficacy and minimize the side effect of compensatory hyperhidrosis (CH) is controversial. This study compared sympathicotomy over the second (R2) vs third (R3) costal head relative to these variables in patients with massive palmar hyperhidrosis. METHODS: This prospective, randomized study enrolled 121 patients with disabling palmoplantar hyperhidrosis assigned to bilateral sympathicotomy (sympathetic transection), which was done over R2 in 61 (n = 122 extremities) or R3 in 60 (n = 120 extremities). Patients were questioned at 6 months and at 1 year or more to assess efficacy, side effects, and satisfaction with the procedure. RESULTS: Sympathicotomy at R2 failed to cure palmar hyperhidrosis in 5 of 122 (4.1%) extremities, but only 2 (1.6%) were to a truly profound dripping level of recurrence. Sympathicotomy at R3 failed to cure palmar hyperhidrosis in 5 of 120 extremities (4.2%), and all were dramatic failures with dripping recurrent sweating. The patients whose palmar hyperhidrosis was not completely cured were aged 19.7 ± 2.5 vs 26.4 ± 8.0 years (p = 0.04). Two R3 patients with failure underwent three redo R2 sympathicotomies, with curative results. R2 patients showed a trend toward a higher level of CH vs R3 patients at 6 months and after 1 year. The CH severity scale was 4.7 ± 2.7 (n = 38) for R2 vs 3.8 ± 2.8 (n = 36) for R3 (p = NS) at 6 months and 4.7 ± 2.5 (n = 43) for R2 vs 3.7 ± 2.8 (n = 37) for R3 (p = NS) after 1 year. Younger age, male sex, and higher levels of preoperative and postoperative plantar sweating were predictors of failed sympathicotomy. Increased age was associated with increased CH. CONCLUSIONS: R2 and R3 sympathicotomy for massive palmoplantar hyperhidrosis are highly effective, with low recurrence and incidences of severe CH. R2 tends to have a higher level of CH vs R3, and a higher incidence of dramatic failures is suggested in R3 patients, for which reoperation at the R2 level will likely be curative.