Incidencia de síndrome de dolor postmastectomía en Colombia / Incidence of post-mastectomy pain syndrome in Colombia

Abstract Introduction: Breast cancer in Colombia is the first cause of cancer death. Post-mastectomy pain syndrome ranges from 13% to 69%; there are no regional studies evaluating its incidence among our population. Objectives: Determining the incidence of post-mastectomy pain syndrome in patients diagnosed with breast cancer undergoing therapeutic oncology surgery at Hospital Universitario de Santander. Materials and methods: Observational, prospective study of a cohort from January, 2014 through July, 2015 during the Pain Clinic follow-up evaluating the occurrence of post-mastectomy pain syndrome. Results: In all, 76 patients were followed and a 55.3% incidence of the post-mastectomy pain syndrome was identified. Among them, 54.8% were classified as mild intensity (visual analog scale [VAS] <4), 42.9% as moderate intensity (VAS 5-7), and 2.4% severe intensity (VAS >8). The most frequent type of pain identified was myofascial pain (42.1%), followed by neuropathic pain (34.2%). Among the group of patients with this type of pain, a relationship was identified between age below 49 years, and this presentation (P = 0.018). Conclusions: The incidence of post-mastectomy pain is 55.3%, higher than various world publications. We found that younger patients were more prone to develop myofascial post-mastectomy pain syndrome.

Resumen Introducción: El cáncer de mamá en Colombia es la primera causa de muerte oncológica. El síndrome de dolor post mastectomía es de 13 a 69%; no hay estudios a nivel regional que evalúen su incidencia en nuestra población. Objetivos: Determinar la incidencia de síndrome de dolor post mastectomía en pacientes con diagnóstico de cáncer de mama sometidas a cirugía oncológica terapéutica en el Hospital Universitario de Santander. Materiales y métodos: Estudio observacional prospectivo de una cohorte en el período de enero de 2014 a julio de 2015 durante el seguimiento por Clínica de Dolor que evaluó la aparición de síndrome de dolor post mastectomía. Resultados: Se realizó seguimiento a 76 pacientes, se encontró una incidencia de síndrome de dolor post mastectomía de 55.3%, de las cuales un 54.8% fueron clasificadas como intensidad leve (Escala visual análoga - EVA < 4), 42,9% como intensidad moderada (EVA 57) y 2,4% de intensidad severa (EVA > 8). La característica de dolor el más frecuentemente encontrado fue el de tipo miofascial (42,1%) seguido por el dolor neuropático (34,2%). En el grupo de pacientes con dolor de tipo miofascial se encontró una relación entre la edad menor a 49 años y la presentación de este tipo (p = 0,018). Conclusiones: La incidencia de síndrome de dolor post mastectomía es del 55,3%, siendo mayor a diferentes publicaciones a nivel mundial. Encontramos que las pacientes de menor edad, eran mas propensas a presentar síndrome de dolor postmastectomía tipo dolor miofascial.

Epidemiological characterization of ophidian accidents in a Colombian tertiary referral hospital. Retrospective study 2004-2014 / Caracterización epidemiológica de accidentes ofídicos en un hospital de tercer nivel en Colombia. Estudio retrospectivo 2004-2014

Abstract Introduction: In Colombia, there are 5 000 cases of ophidism per year. This is a public health issue that causes mortality in 8% of cases and disability in 10% due to inadequate clinical attention. Objective: To describe the clinical and epidemiological characteristics of patients diagnosed with ophidic accident in a tertiary hospital in Colombia. Materials and methods: A review of clinical charts that included a diagnosis of ophidism during the 2004-2014 period was made at Hospital Universitario de La Samaritana Empresa Social del Estado. The frequency of the variables associated with snake bites, previous treatment and in-hospital management was analyzed. Results: 42 medical charts were reviewed. Ophidism predominated in male farmers, who presented with bites in the lower limbs and were initially treated by medicine men/women. 90% of patients developed superinfections, 30% wound culture, 74% received antibiotics, 50% underwent fasciotomy and 95.2% were given antivenin. Conclusions: Significant variability in the management of patients, discrepancy in antivenin dose and in classification of poisoning severity were observed throughout the study, as well as a high incidence of infections despite antibiotic schemes and surgical procedures. Medical management of ophidic accidents must be continuously updated to reduce disability and mortality in patients.

Resumen Introducción. En Colombia se presentan 5 000 casos de ofidismo anuales, un problema de salud pública que por manejo inadecuado provoca mortalidad en el 8% de los casos y discapacidad en el 10%. Objetivo. Describir las características clínicoepidemiológicas de los pacientes diagnosticados con accidente ofídico en un hospital de tercer nivel en Colombia. Materiales y métodos. Se realizó una revisión de las historias clínicas con diagnóstico de ofidismo del Hospital Universitario De La Samaritana Empresa Social del Estado, en el período 2004-2014, analizando la frecuencia en las variables asociadas a la mordedura de serpiente, el tratamiento previo y el manejo intrahospitalario. Resultados. Se revisaron 42 historias clínicas. Predominó el ofidismo en hombres agricultores, con mordedura en miembros inferiores y asistidos inicialmente por curanderos. 90% de los pacientes presentó sobreinfección, 30% tuvo cultivo de la herida, 74% recibió antibiótico, al 50% se les realizó fasciotomía y al 95.2% se le suministró antiveneno. Conclusiones. Se evidenció variabilidad en el manejo de los pacientes y discrepancia en la dosis de antiveneno y la clasificación de severidad del envenenamiento, alta incidencia de infecciones a pesar del esquema antibiótico y procedimientos quirúrgicos reevaluados en ofidismo. El manejo médico del accidente ofídico debe estar en continua actualización para disminuir discapacidad y mortalidad en los pacientes.

Muir-Torre Syndrome: case report and molecular characterization / Sindrome de Muir-Torre: relato de caso e caracterizacao molecular

CONTEXT: Muir-Torre syndrome is a rare autosomal dominant genodermatosis caused by mutations in the mismatch repair genes. It is characterized by the presence of sebaceous skin tumors and internal malignancies, affecting mainly the colon, rectum and urogenital tract. Awareness of this syndrome among physicians can lead to early diagnosis of these malignancies and a better prognosis. CASE REPORT: We report the case of a Chilean patient who, over the course of several years, had multiple skin lesions, endometrial cancer and colon cancer. The syndrome was diagnosed using molecular techniques such as microsatellite instability analysis, immunohistochemistry and DNA sequencing, which allowed us to find the causative mutation. CONCLUSION: Molecular diagnostics is a highly useful tool, since it allows clinicians to confirm the presence of mutations causing Muir-Torre syndrome. It is complementary to the analysis of the clinical data, such as dermatological presentation, presence of visceral malignancies and family history of colorectal tumors, and it provides important knowledge to help physicians and patients choose between treatment options. .

CONTEXTO: A síndrome de Muir-Torre é uma genodermatose autossômica dominante rara causada por mutações nos genes de reparo de incorreções. Caracteriza-se pela presença de tumores sebáceos da pele e doenças malignas internas, afetando principalmente cólon, reto e trato urogenital. A consciência desta síndrome pelos médicos pode levar ao diagnóstico precoce dessas doenças malignas e a um melhor prognóstico. RELATO DE CASO: Relatamos o caso de uma paciente chilena que, ao longo de vários anos, teve lesões cutâneas múltiplas, câncer de endométrio e câncer de cólon. A síndrome foi diagnosticada com técnicas moleculares, como a análise de instabilidade de microssatélites, imunoistoquímica e sequenciamento de DNA, o que nos permitiu encontrar a mutação causadora. CONCLUSÃO: Diagnóstico molecular é uma ferramenta muito útil, uma vez que permite que os clínicos confirmem a presença de mutações causadoras de síndrome de Muir-Torre. É complementar para a análise dos dados clínicos, tais como a apresentação dermatológica, a presença de doenças malignas viscerais e história familiar de tumores colorrectais, e fornece conhecimentos importantes para ajudar os médicos e os pacientes a escolher entre opções de tratamento. .

Prevalence of the 35delG mutation in the GJB2 gene in two samples of non-syndromic deaf subjects from Chile

Hearing loss is the most common inherited sensorial deficiency in humans; about 1 in 1000 children suffer from severe or profound hearing loss at birth. Mutations in the GJB2 gene are the most common cause of prelingual, non-syndromic autosomal recessive deafness in many populations; the c.35delG mutation is the most common in Caucasian populations. The frequency of the c.35delG mutation was estimated in two samples of deaf patients from Santiago, Chile. Unrelated non-syndromic sensorioneural deaf patients were examined: Group 1 consisted of 47 unrelated individuals with neurosensory deafness referred to the Chilean Cochlear Implant Program; Group 2 included 66 school children with prelingual deafness attending special education institutions for deaf people. Individuals with profound to moderate isolated neurosensory hearing loss with unknown etiology were included. The presence of the c.35delG mutation was evaluated by the allele-specific polymerase chain reaction method (PCR), and in some cases it was confirmed by direct DNA sequencing of the coding region of the GJB2 gene. Deaf relatives were present in 20.3% of the cases. We found 19.5% (22/113) patients with the c.35delG mutation, 6 of them homozygous; these rates are similar to frequencies found in other Latin American countries.

O vírus da hepatite C como causa de miocardiopatia dilatada idiopática: uma revisão de literatura / Hepatitis C virus as cause of idiopathic dilated cardiomyopathy: a literature review

O vírus da hepatite C (VHC) é hepatotróico de transmissão parenteral. Apesar do hepatotropismo, o VHC também é capaz de infectar outros tecidos e está implicado em diversas doenças, principalmente de natureza auto-imune. Recentes estudos sugerem uma alta prevalência da infecção pelo vírus C em pacientes portadores de cardiomiopatia dilatada idiopática. Sabe-se que a miocardite é comumente causada por diversas viroses e que a progressão para cardiomiopatia dilatada e conseqüente disfunção sistólica, em pacientes previamente hígidos, que tiveram um quadro de miocardite, é uma complicação esperada. Neste trabalho, focalizaremos uma ampla revisão de literatura sobre as inter-relações entre a infecção pelo VHC e a cardiomiopatia dilatada.