Edema pulmonar por reexpansión. Reporte de Caso / Pulmonary edema due to re-expansion. Case Report

Introducción. El edema pulmonar por reexpansión es una complicación poco frecuente, secundaria a una rápida reexpansión pulmonar posterior al drenaje por toracentesis o toracostomía cerrada. Al día de hoy, se ha descrito una incidencia menor al 1 % tras toracostomía cerrada, con mayor prevalencia en la segunda y tercera década de la vida. Su mecanismo fisiopatológico exacto es desconocido; se ha planteado un proceso multifactorial de daño intersticial pulmonar asociado con un desequilibrio de las fuerzas hidrostáticas. Caso clínico. Presentamos el caso de un paciente que desarrolló edema pulmonar por reexpansión posterior a toracostomía cerrada. Se hizo una revisión de la literatura sobre esta complicación. Resultados. Aunque la clínica sugiere el diagnóstico, la secuencia de imágenes desempeña un papel fundamental. En la mayoría de los casos suele ser autolimitado, por lo que su manejo es principalmente de soporte; sin embargo, se han reportado tasas de mortalidad que alcanzan hasta el 20 %, por tanto, es importante conocer los factores de riesgo y las medidas preventivas. Conclusión. El edema pulmonar de reexpansión posterior a toracostomía es una complicación rara en los casos con neumotórax, aunque es una complicación que se puede presentar en la práctica diaria, por lo cual debe tenerse en mente para poder hacer el diagnóstico y un manejo adecuado.

Introduction. Re-expansion pulmonary edema is a rare complication secondary to rapid pulmonary re-expansion after drainage by thoracentesis and/or closed thoracostomy. As of today, an incidence of less than 1% has been described after closed thoracostomy, with a higher prevalence in the second and third decades of life. Its exact pathophysiological mechanism is unknown; a multifactorial process of lung interstitial damage associated with an imbalance of hydrostatic forces has been proposed. Clinical case. We present the case of a patient who developed pulmonary edema due to re-expansion after closed thoracostomy, conducting a review of the literature on this complication. Results. Although the clinic suggests the diagnosis, the sequence of images plays a fundamental role. In most cases, it tends to be a self-limited disease, so its management is mainly supportive. However, mortality rates of up to 20% have been recorded. Therefore, it is important to identify patients with major risk factors and initiate preventive measures in these patients. Conclusions. Re-expansion pulmonary edema after thoracostomy is a rare complication in cases with pneumothorax; however, it is a complication that can occur in daily practice. Therefore, it must be kept in mind to be able to make the diagnosis and an adequate management.

Lesiones iatrogénicas del nervio radial en la osteosíntesis de la diáfisis humeral / Intraoperative iatrogenic injury of the radial nerve in humerus osteosynthesis

Introducción: Los objetivos de este estudio fueron determinar la incidencia de lesión iatrogénica intraquirúrgica del nervio radial durante la osteosíntesis de la diáfisis y el extremo distal del húmero, distinguir factores de riesgos asociados y reconocer elementos pronósticos que participan de su recuperación. Materiales y Métodos: Se evaluó, en forma retrospectiva, a 82 pacientes con osteosíntesis de húmero entre 2005 y 2021, sin parálisis radial preoperatoria. Se consideraron los sistemas de fijación utilizados, y se compararon las cirugías primarias con las reoperaciones y el tiempo transcurrido entre estas. El diagnóstico de parálisis radial posoperatorio fue clínico. Todos los pacientes fueron tratados con férula en extensión de muñeca, electroestimulación, kinesiología y vitaminas B1, B6, B12. La electromiografía se solicitó a los fines del pronóstico. Resultados: Nueve pacientes tuvieron déficit motor del nervio radial en el posoperatorio inmediato. El sistema de fijación era una placa (7 casos), sistema de cable-placa (1 caso) y clavo endomedular acerrojado anterógrado (1 caso). Siete ocurrieron en cirugías primarias y dos en reoperaciones. El 88% recuperó su función motora completamente antes de los 6 meses después de la parálisis. La electromiografía reveló un nervio radial no excitable en el 22% restante con parálisis definitiva. Conclusiones: El uso de placa de osteosíntesis, la disección intraoperatoria del nervio radial y las reoperaciones aumentan la incidencia de parálisis. Un nervio radial no excitable se relaciona con un peor pronóstico de recuperación espontánea. Nivel de Evidencia: IV

Introduction: The purpose of this study is to determine the incidence of intraoperative iatrogenic radial nerve injury after osteosynthesis of the diaphysis and distal end of the humerus, identify associated risk factors, and determine the prognostic factors involved in its recovery. Materials and Methods: We retrospectively assessed 82 humerus osteosynthesis cases between 2005 and 2021 who had normal radial nerve function before surgery. We evaluated the fixation systems used, the type of surgery (primary versus revision), and the intervals between surgeries. The diagnosis of postoperative radial palsy was made by clinical examination. All patients were treated with wrist extension splint, physiotherapy, and vitamins B1, B6, and B12. Results: After humerus fixation, 9 patients developed motor palsy. Seven cases were fixed with plates, one with a cable-plate system, and one with an anterograde locking intramedullary nail. Seven cases (22%) occurred after primary procedures, while two occurred during revisions. Within 6 months, 88% had regained full motor function. In the remaining 22% of patients with definite palsy, electromyography revealed no excitability of the radial nerve. Conclusions: The use of an osteosynthesis plate, as well as intraoperative dissection and neurolysis of the radial nerve, were identified as risk factors for the development of radial palsy. Reoperations on the humerus, on the other hand, are a risk factor that increases the likelihood of postoperative radial nerve palsy. A radial nerve with no excitability on the postoperative electromyogram has a poor prognosis of spontaneous radial nerve function recovery. Level of Evidence: IV

Association between gestational diabetes mellitus and preterm birth subtypes / 中华流行病学杂志

Objective: To investigate the association between gestational diabetes mellitus (GDM) and preterm birth subtypes. Methods: Based on the cohort of pregnant women in Anqing Prefectural Hospital, the pregnant women who received prenatal screening in the first or second trimesters were recruited into baseline cohorts; and followed up for them was conducted until delivery, and the information about their pregnancy status and outcomes were obtained through electronic medical record system and questionnaire surveys. The log-binomial regression model was used to explore the association between GDM and preterm birth [iatrogenic preterm birth, spontaneous preterm birth (preterm premature rupture of membranes and preterm labor)]. For multiple confounding factors, the propensity score correction model was used to compute the adjusted association. Results: Among the 2 031 pregnant women with a singleton delivery, the incidence of GDM and preterm birth were 10.0% (204 cases) and 4.4% (90 cases) respectively. The proportions of iatrogenic preterm birth and spontaneous preterm birth in the GDM group (n=204) were 1.5% and 5.9% respectively, while the proportions in non-GDM group (n=1 827) were 0.9% and 3.2% respectively, and the difference in the proportion of spontaneous preterm birth between the two groups was significant (P=0.048). Subtypes of spontaneous preterm were further analyzed, and the results showed that the proportions of preterm premature rupture of membranes and preterm labor in the GDM group were 4.9% and 1.0% respectively, while the proportions in the non-GDM group were 2.1% and 1.1% respectively. It showed that the risk of preterm premature rupture of membranes in GDM pregnant women was 2.34 times (aRR=2.34, 95%CI: 1.16-4.69) higher than that in non-GDM pregnant women. Conclusions: Our results showed that GDM might increase the risk of preterm premature rupture of membranes. No significant increase in the proportion of preterm labor in pregnant women with GDM was found.

Research progress of iatrogenic blepharoptosis repair after double eyelid surgery / 中国修复重建外科杂志

OBJECTIVE@#To summarize the etiology mechanism and treatment of iatrogenic blepharoptosis after double eyelid surgery in Asia.@*METHODS@#To extensively review the literature related to iatrogenic blepharoptosis after double eyelid surgery, and to summarize and analyze the related anatomical mechanism, existing treatment options, and indications.@*RESULTS@#Iatrogenic blepharoptosis is a relatively common complication after double eyelid surgery, sometimes it is combined with other eyelid deformities such as sunken upper eyelid and wide double eyelid, which makes it difficult to repair. The etiology is mainly caused by improper adhesion of tissues and scars, improper removal of upper eyelid tissue, and injury of a link of levator muscle power system. Whether blepharoptosis occurs after double eyelid surgery by incision or suture, it should be repaired by incision. The principles of repair include surgical loosening of tissue adhesion, anatomical reduction, and repair of damaged tissues. The key is to use surrounding tissues or transplanted fat to prevent adhesion.@*CONCLUSION@#When repairing iatrogenic blepharoptosis clinically, appropriate surgical methods should be selected based on the causes and severity of the blepharoptosis, combined with treatment principles, in order to achieve better repair results.

El error en la práctica médica / Error in Medical Practice

Introducción: El error está presente en cualquier actividad humana y la práctica de la medicina no es una excepción. Debido al aumento de los conocimientos sobre la salud y las enfermedades, la posibilidad de error, relacionada con la atención de estas últimas, disminuye, pero no se ha eliminado en su totalidad. Objetivo: Exponer las experiencias de los autores acerca del error en la práctica médica. Métodos: Revisión bibliográfica entre los años 2000 y 2020. Se localizaron y consultaron fuentes bibliográficas validadas en: Medline, PubMed y SciELO, a las que se accedió a través de la biblioteca virtual de salud. Se utilizaron para la búsqueda las palabras clave error médico, iatrogenia, responsabilidad penal del médico, método clínico. Se revisaron también tres bibliografías anteriores que se consideraron de utilidad para el artículo y tres capítulos de libros con temas afines, además de las resoluciones del Ministerio de Salud Pública de Cuba que tratan acerca del error médico. Al final se seleccionaron 21 bibliografías en idiomas español e inglés. Conclusiones: Existen grandes posibilidades de errores en el proceso del diagnóstico y tratamiento de los enfermos. El desarrollo de la tecnología y la mejoría en la construcción de guías y protocolos disminuyen las probabilidades de equivocaciones, pero no las eliminan. El perfeccionamiento en la formación de recursos humanos, unido al uso correcto del método clínico es una estrategia eficaz para disminuir los errores en la práctica médica(AU)

(AU)ntroduction: Error is present in any human activity; the medical practice is not an exception. Due to an increase in knowledge about health and diseases, error possibility related to disease management is decreasing, but has not been totally eliminated. Objective: To expose the authors' experiences regarding error in medical practice. Methods: A bibliographic review was carried out, covering the years between 2000 and 2020. Validated bibliographic sources were located and consulted in Medline, PubMed and SciELO, accessed through the Virtual Health Library. The following keywords were used for the search: error médico [medical error], iatrogenia [iatrogenic error], responsabilidad penal del médico [physician criminal liability] and método clínico [clinical method]. Three previous bibliographies considered useful for the article and three book chapters with related topics were also reviewed, in addition to the resolutions of the Ministry of Public Health of Cuba dealing with the topic of medical error. Finally, 21 bibliographies in Spanish and English were selected. Conclusions: There are great possibilities of errors in the process of patient diagnosis and management. The development of technology, as well as the improvement in the construction of guides and protocols, decreases the probabilities of errors, but do not eliminate them. The improvement in the training of human resources, together with the correct use of the clinical method, is an effective strategy to reduce errors in medical practice(AU)

Prevenção quaternária e suas implicações para a prática clínica: uma revisão sistemática / Quaternary prevention and its implications for the clinical practice: a systematic review

A crescente produção de iatrogenias justifica a discussão acerca da incorporação da prevenção quaternária na prática médica cotidiana. Este estudo identificou e sistematizou a produção de conhecimento sobre prevenção qua-ternária e sua implicação para a prática clínica. Trata-se de revisão sistemática descritiva apoiada na pergunta nor-teadora: "Quais são as evidências produzidas sobre prevenção quaternária e sua implicação para a prática clínica?" Realizou-se o levantamento bibliográfico entre agosto e setembro de 2020, utilizando-se o descritor "prevenção quaternária", nos idiomas inglês, português e espanhol. A análise dos 30 artigos produziu evidências sobre inter-venções médicas potencialmente danosas que justificariam a adoção da prevenção quaternária. O estudo provoca a comunidade médica a refletir sobre a incorporação da prevenção quaternária, visando uma prática assistencial menos iatrogênica, valorizando a medicina centrada na pessoa e os atributos da atenção primária à saúde. (AU)

The growing production regarding iatrogenesis justifies the discussion about the incorporation of quaternary pre-vention in the daily medical practice. This study identified and systematized the production of knowledge about quaternary prevention and its implications for the clinical practice. This is a systematic descriptive review supported by the guiding question: What evidence has been produced regarding quaternary prevention and its impact on the clinical practice? A bibliographic survey was carried out between August and September 2020 using the descriptor "quaternary prevention" in English, Portuguese and Spanish. The analysis of 30 articles produced evidence on po-tentially harmful medical interventions that would justify the adoption of quaternary prevention. The study invites the medical community to reflect on the incorporation of quaternary prevention, aiming for a less iatrogenic care practice, valuing person-centered medicine and the attributes of primary health care. (AU)

Morfología de las lesiones iatrogénicas de la vía biliar: aspectos diagnósticos y terapéuticos / Morphology of iatrogenic lesions of the bile duct: diagnostic and therapeutic options

RESUMEN: Las lesiones iatrogénicas de las vías biliares (LIVB), en el curso de una colecistectomía laparoscópica (CL), son complicaciones que causan resultados inesperados para cirujanos un incremento en los riesgos de los pacientes (morbilidad y mortalidad), afectando su calidad de vida. Asimismo, causan situaciones difíciles desde el punto de vista técnico para el cirujano que debe repararlas desde un punto de vista técnico. El objetivo de este manuscrito fue resumir la información referente a las LIVB y describir su morfología y opciones diagnóstico-terapéuticas.

SUMMARY: Iatrogenic Bile duct injuries (IBDI), during laparoscopic cholecystectomy (CL), are complications that cause unexpected results for surgeons, an increment in patient risks (morbidity and mortality), and affect the patient´s quality of life. At the same time, they create difficult situations for the repairing surgeon from a technical point of view. The aim of this manuscript was to summarize the information regarding IBDI and to describe its morphology and diagnostic-therapeutic options.

Repercusiones estéticas, funcionales, psicológicas y económicas de iatrogenia en el tratamiento de la avulsión dental. Relato de caso / Implicações estéticas, funcionais, psicológicas e econômicas da iatrogênia no tratamento da avulsão dentária. Relatório de caso / Aesthetic, functional, psychological, and economic repercussions of iatrogenesis in the treatment of dental avulsion. Case report

Introducción: La avulsión dental es el desalojo completo del diente fuera del alvéolo con consecuencias estéticas, funcionales, psicológicas y económicas. La Asociación Internacional de Trauma Dental establece que entre las acciones para favorecer el pronóstico está el reimplante inmediato. Objetivo: Evaluar el impacto en la calidad de vida en un paciente de 9 años de edad ante un caso probable de iatrogenia al tratar la avulsión dental. Presentación de Caso: Paciente masculino de 9 años que sufrió avulsión de 11 por golpe directo contra columpio en la escuela; madre informa que fue trasladado de inmediato a clínica privada, el diente no fue reimplantado, indicándose como tratamiento una prótesis parcial fija. Dos semanas posteriores se presentó a las Clínicas de Posgrado de la Facultad de Odontología Universidad de El Salvador, se evaluó integralmente, se priorizó el impacto psicológico a consecuencia de la pérdida del diente, como tratamiento empático de urgencia se utilizó la corona del diente avulsionado, fijándolo con férula de alambre-resina por palatino, generando al finalizar evidente satisfacción en el paciente. Conclusiones: El índice de perfil de impacto en salud oral confirmó un impacto importante en la calidad de vida del niño a consecuencia de la pérdida de un diente anterior. El abordaje incorrecto generó la pérdida irreparable del incisivo central superior permanente, con repercusiones en la calidad de vida del paciente

Introdução: A avulsão dentária é o deslocamento com saída total do dente do interior do seu alvéolo com consequências estéticas, funcionais, psicológicas e econômicas. A Associação Internacional de Trauma Dental estabelece que uma das ações favoráveis ao prognóstico é o reimplante imediato. Objetivo: Avaliar o impacto na qualidade de vida de um paciente de 9 anos com provável caso de iatrogenia no tratamento de avulsão dentária. Relato de caso: Paciente do sexo masculino, 9 anos de idade, apresentou avulsão do dente 11, por impacto direto contra um balanço infantil na escola, a mãe relatou que foi imediatamente transferido para uma clínica particular, o dente não foi reimplantado, indicando uma Prótese parcial fixa como tratamento. Após duas semanas compareceu às Clínicas da Pós-Graduação da Faculdade de Odontologia da Universidade de El Salvador, foi avaliado integralmente, o impacto psicológico foi priorizado como resultado da perda do dente, como tratamento empático de urgência. foi utilizado o dente avulsionado fixando-o com esplintagem de resina-fio pela superfície palatina, gerando no final evidente satisfação do paciente. Conclusões: O índice de perfil de impacto na saúde bucal confirmou um impacto significativo na qualidade de vida da criança como resultado da perda de um dente anterior. A abordagem incorreta gerou a perda irreparável do incisivo central superior permanente, com repercussões na qualidade de vida do paciente

Introduction: dental avulsion is the complete removal of the tooth out of the socket with aesthetic, functional, psychological, and economic consequences. The International Association of Dental Traumatology establishes that among the actions to favor the prognosis is the immediate reimplantation. Objective: To assess the impact on quality of life in a 9-year-old patient with a probable case of iatrogenesis when treating dental avulsion. Case Presentation: 9-year-old male patient who suffered a 11 avulsion from a direct hit against the swing at school; the mother reports that he was immediately transferred to a private clinic. The tooth was not reimplanted, indicating a fixed partial prosthesis as treatment. Two weeks later, he was presented to the Postgraduate Clinics of the Faculty of Dentistry at the University of El Salvador. He was comprehensively evaluated, and the psychological impact as a result of tooth loss was prioritized. As emergency empathic treatment the crown of the avulsed tooth was used, fixing it with a palatal wire-resin splint, generating evident satisfaction in the patient at the end. Conclusions: Child-Oral index in Daily Performances confirmed an important impact on the quality of life the child as a consequence of the loss of an anterior tooth. The incorrect approach generated the irreparable loss of the permanent upper central incisor, with repercussions on the quality of life the patient

Accidental monensin poisoning in buffaloes in Bahia, Brazil / Intoxicação acidental por monensina em búfalos na Bahia, Brasil

Monensin is an ionophore antibiotic (IA) widely used for growth promotion and weight gain in the production of ruminants. However, it has caused intoxication in several species, including buffaloes, mainly because of the ignorance or disrespect of the recommendations for use in each animal species. The objective of this study was to describe, for the first time, clinical-epidemiological and anatomopathological data of an outbreak of accidental poisoning by monensin in buffalos and rediscuss the recommendation of the use of IA in the production of this species. The outbreak affected 21 adult buffaloes after consumption of remains from a feed formulated on the farm and whose constituents were mixed by hand. Clinical and first death signs were observed 24 hours after ingestion of this food. In general, the clinical picture was characterized by muscle weakness, tremors, difficulty in locomotion, and decubitus. Fifteen buffaloes presented clinical signs of poisoning (71.5% morbidity), followed by death (100% lethality), after acute to subacute evolution (<24h to 96h). Laboratory tests indicated elevated serum activity of creatine phosphokinase and aspartate aminotransferase enzymes. Three buffaloes underwent necropsy, and samples from several organs were collected for histopathological examination. The main injuries found were hyaline degeneration and multifocal segmental necrosis in the skeletal and cardiac striated muscles (myopathy and degenerative-necrotic multifocal multifocal-necrotic cardiopathy). The diagnosis was confirmed by the toxicological evaluation of suspected ration remains, which detected 461.67mg/kg of monensin. The death of 71.5% buffaloes in this lot occurred due to a succession of errors, which included faults in the formulation of the ration and, above all, due to the use of monensin in a highly sensitive species. Despite the possible beneficial effects of IA use as a dietary supplement for buffaloes, we are of the opinion that IAs should never be used in bubalinoculture since any increment in production does not compensate for the imminent risk of death due to a small safety margin for this species and the absence of antidotes.(AU)

Monensina é um antibiótico ionóforo (AI) amplamente empregado na produção de ruminantes para promoção de crescimento e ganho de peso, mas que tem causado intoxicação em diversas espécies, incluindo os búfalos, principalmente, pelo desconhecimento ou desrespeito das recomendações de uso e às particularidades de cada espécie animal. Objetivou-se descrever, pela primeira vez na Bahia, dados clínico-epidemiológicos e anatomopatológicos de um surto de intoxicação acidental por monensina em búfalos e rediscutir a recomendação do uso de AI na produção de bubalinos. O surto acometeu um lote de 21 búfalos adultos após consumo de sobras de uma ração para bovinos formulada na fazenda e cujos constituintes eram misturados à mão. Os sinais clínicos e primeiros óbitos foram observados 24 horas após a ingestão dessa ração. O quadro clínico, em geral, se caracterizou por fraqueza muscular, tremores, dificuldade de locomoção e decúbito. Quinze búfalos apresentaram sinais clínicos de intoxicação (morbidade 71,5%), seguido de morte (letalidade 100%), após evolução aguda a subaguda (<24h até 96h). Exames laboratoriais indicaram acentuada elevação na atividade sérica das enzimas CPK e AST. Três búfalos foram necropsiados, sendo coletadas amostras de diversos órgãos para exame histopatológico. A principal lesão encontrada foi degeneração hialina e necrose segmentar multifocal nos músculos estriados esqueléticos e cardíacos (miopatia e cardiopatia degenerativo-necrótica tóxica multifocal polifásica). O diagnóstico foi confirmado pela avaliação toxicológica das sobras da ração suspeita, que detectou 461,67mg/kg de monensina. A morte de 71,5% dos búfalos deste lote ocorreu devido a uma sucessão de erros, que incluíram falhas na formulação da ração e, sobretudo, devido ao uso da monensina em uma espécie altamente sensível. Enfatizamos que, apesar dos possíveis efeitos benéficos do uso AIs como suplemento dietético para bubalinos, somos da opinião que os AIs nunca devem ser empregados na bubalinocultura, uma vez que os eventuais incrementos na produção não compensam o risco iminente de morte, devido a pequena margem de segurança para essa espécie e a inexistência de antídotos.(AU)

Accidental monensin poisoning in buffaloes in Bahia, Brazil / Intoxicação acidental por monensina em búfalos na Bahia, Brasil

Monensin is an ionophore antibiotic (IA) widely used for growth promotion and weight gain in the production of ruminants. However, it has caused intoxication in several species, including buffaloes, mainly because of the ignorance or disrespect of the recommendations for use in each animal species. The objective of this study was to describe, for the first time, clinical-epidemiological and anatomopathological data of an outbreak of accidental poisoning by monensin in buffalos and rediscuss the recommendation of the use of IA in the production of this species. The outbreak affected 21 adult buffaloes after consumption of remains from a feed formulated on the farm and whose constituents were mixed by hand. Clinical and first death signs were observed 24 hours after ingestion of this food. In general, the clinical picture was characterized by muscle weakness, tremors, difficulty in locomotion, and decubitus. Fifteen buffaloes presented clinical signs of poisoning (71.5% morbidity), followed by death (100% lethality), after acute to subacute evolution (<24h to 96h). Laboratory tests indicated elevated serum activity of creatine phosphokinase and aspartate aminotransferase enzymes. Three buffaloes underwent necropsy, and samples from several organs were collected for histopathological examination. The main injuries found were hyaline degeneration and multifocal segmental necrosis in the skeletal and cardiac striated muscles (myopathy and degenerative-necrotic multifocal multifocal-necrotic cardiopathy). The diagnosis was confirmed by the toxicological evaluation of suspected ration remains, which detected 461.67mg/kg of monensin. The death of 71.5% buffaloes in this lot occurred due to a succession of errors, which included faults in the formulation of the ration and, above all, due to the use of monensin in a highly sensitive species. Despite the possible beneficial effects of IA use as a dietary supplement for buffaloes, we are of the opinion that IAs should never be used in bubalinoculture since any increment in production does not compensate for the imminent risk of death due to a small safety margin for this species and the absence of antidotes.

Monensina é um antibiótico ionóforo (AI) amplamente empregado na produção de ruminantes para promoção de crescimento e ganho de peso, mas que tem causado intoxicação em diversas espécies, incluindo os búfalos, principalmente, pelo desconhecimento ou desrespeito das recomendações de uso e às particularidades de cada espécie animal. Objetivou-se descrever, pela primeira vez na Bahia, dados clínico-epidemiológicos e anatomopatológicos de um surto de intoxicação acidental por monensina em búfalos e rediscutir a recomendação do uso de AI na produção de bubalinos. O surto acometeu um lote de 21 búfalos adultos após consumo de sobras de uma ração para bovinos formulada na fazenda e cujos constituintes eram misturados à mão. Os sinais clínicos e primeiros óbitos foram observados 24 horas após a ingestão dessa ração. O quadro clínico, em geral, se caracterizou por fraqueza muscular, tremores, dificuldade de locomoção e decúbito. Quinze búfalos apresentaram sinais clínicos de intoxicação (morbidade 71,5%), seguido de morte (letalidade 100%), após evolução aguda a subaguda (<24h até 96h). Exames laboratoriais indicaram acentuada elevação na atividade sérica das enzimas CPK e AST. Três búfalos foram necropsiados, sendo coletadas amostras de diversos órgãos para exame histopatológico. A principal lesão encontrada foi degeneração hialina e necrose segmentar multifocal nos músculos estriados esqueléticos e cardíacos (miopatia e cardiopatia degenerativo-necrótica tóxica multifocal polifásica). O diagnóstico foi confirmado pela avaliação toxicológica das sobras da ração suspeita, que detectou 461,67mg/kg de monensina. A morte de 71,5% dos búfalos deste lote ocorreu devido a uma sucessão de erros, que incluíram falhas na formulação da ração e, sobretudo, devido ao uso da monensina em uma espécie altamente sensível. Enfatizamos que, apesar dos possíveis efeitos benéficos do uso AIs como suplemento dietético para bubalinos, somos da opinião que os AIs nunca devem ser empregados na bubalinocultura, uma vez que os eventuais incrementos na produção não compensam o risco iminente de morte, devido a pequena margem de segurança para essa espécie e a inexistência de antídotos.

Effects of comprehensive treatment of infected wounds in patients with iatrogenic Cushing's syndrome / 中华烧伤杂志

Objective: To investigate the characteristics and comprehensive treatment of infected wounds in patients with iatrogenic Cushing's syndrome. Methods: A retrospective observational study was conducted. From May 2012 to December 2021, the data of 19 patients with iatrogenic Cushing's syndrome discharged from the Department of Burns and Plastic Surgery of the First Affiliated Hospital of Guangxi Medical University were collected, including 8 males and 11 females, aged 28-71 (56±11) years, with 12 cases of infected acute wounds and 7 cases of infected chronic wounds. The lesions were located in the limbs, perianal, and sacrococcygeal regions, with original infection ranging from 9 cm×5 cm to 85 cm×45 cm. After admission, the patients were performed with multidisciplinary assisted diagnosis and treatment, and the wounds were treated with debridement and vacuum sealing drainage, according to the size, severity of infection, suture tension, and bone and tendon tissue exposure of wounds, direct suture or autologous skin and/or artificial dermis and/or autologous tissue flap transplantation was selected for wound repair. The levels of cortisol and adrenocorticotropic hormone (ACTH) of patients at 8:00, 16:00, and 24:00 within 24 h after admission were counted. After admission, the number of operations, wound repair methods, and wound and skin/flap donor site healing of patients were recorded. During follow-up, the wounds were observed for recurrent infection. Results: The cortisol levels of 16 patients at 8:00, 16:00, and 24:00 within 24 h after admission were (130±54), (80±16), and (109±39) nmol/L, respectively, and ACTH levels were (7.2±2.8), (4.1±1.8), and (6.0±3.0) pg/mL, respectively; and the other 3 patients had no such statistical results. After admission, the number of surgical operation for patients was 3.4±0.9. The following methods were used for wound repair, including direct suturing in 4 cases and autologous skin and/or artificial dermis grafting in 9 cases, of which 2 cases underwent stage Ⅱ autologous skin grafting after artificial dermis grafting in stage Ⅰ, and 6 cases had pedicled retrograde island flap+autologous skin grafting. The wound healing was observed, showing that all directly sutured wounds healed well; the wounds in 6 cases of autologous skin and/or artificial dermis grafting healed well, and the wounds in 3 cases also healed well after the secondary skin grafting; the flaps in 4 cases survived well with the wounds in 2 cases with distal perforators flap arteries circumfluence obstacle of posterior leg healed after stage Ⅱ debridement and autologous skin grafting. The healing status of skin/flap donor sites was followed showing that the donor sites of medium-thickness skin grafts in the thigh of 4 cases were well healed after transplanted with autologous split-thickness grafts from scalp; the donor sites of medium-thickness skin grafts in 3 cases did not undergo split-thickness skin grafting, of which 2 cases had poor healing but healed well after secondary skin grafting 2 weeks after surgery; the donor sites of split-thickness skin grafts in the head of 2 patients healed well; and all donor sites of flaps healed well after autologous skin grafting. During follow-up of more than half a year, 3 gout patients were hospitalized again for surgical treatment due to gout stone rupture, 4 patients were hospitalized again for surgical treatment due to infection, and no recurrent infection was found in the rest of patients. Conclusions: The infected wounds in patients with iatrogenic Cushing's syndrome have poor ability to regenerate and are prone to repeated infection. Local wound treatment together with multidisciplinary comprehensive treatment should be performed to control infection and close wounds in a timely manner, so as to maximize the benefits of patients.

Polifarmácia, automedicação e uso de medicamentos potencialmente inapropriados: causa de intoxicações em idosos / Polypharmacy, automedication, and the use of potentially inappropriate medications: cause of intoxications in the elderly

Introdução: É fato que os idosos compreendem um grupo etário que cresce exponencialmente no Brasil. Inevitavelmente, a alta demanda da maioria dessa população por medicamentos e serviços de saúde acarreta impacto nas políticas de saúde pública no que tange o esforço necessário para garantir o uso racional de medicamentos, evitar iatrogenia e melhorar a qualidade de vida dos idosos. Medicamentos potencialmente inadequados são aqueles que devem ser evitados em idosos, em que o risco de eventos adversos supera o benefício. Métodos: O estudo, de caráter descritivo e retrospectivo e partindo da pesquisa e análise de dados secundários em saúde, objetivou ampliar o conhecimento sobre o impacto do uso de medicamentos pela população idosa, através da coleta de informações sobre as intoxicações por uso de medicamentos disponíveis no site do DATASUS (departamento de informática do Sistema Único de Saúde). Resultados: Em cerca de dez anos relacionados ao período estudado, entre 2010 a 2020, houveram 2.946 internações de idosos causadas por intoxicações farmacológicas, sendo relevante em número de casos as classes dos anticonvulsivantes, sedativos, hipnóticos, antiparkinsonianos. A região com maior número de casos foi a Sudeste. Há diferenças significativas na probabilidade de intoxicação em idosos, sendo maior nos casos de exposição a álcool, a fármacos analgésicos, antipiréticos e antirreumáticos, e a fármacos com ação no sistema nervoso central. Conclusão: Os resultados encontrados advêm da tendência crescente dos problemas associados ao uso de medicamentos por idosos, tornando-se clara a importância de estratégias efetivas de farmacovigilância voltadas a saúde dessa população.

Introduction: It is a fact that the elderly comprise an exponentially growing age group in Brazil. Inevitably, the high demand of most of this population for medicines and health services impacts public health policies in terms of the effort required to ensure the rational use of medicines, avoid iatrogenesis and improve the quality of life of the elderly. Potentially inappropriate drugs are those that should be avoided in the elderly, where the risk of adverse events outweighs the benefit. Methods: The study, of descriptive and retrospective nature and based on the research and analysis of secondary health data, aimed to broaden knowledge about the impact of the use of medicines by the elderly population, by collecting information on intoxications due to the use of medicines available on the DATASUS (departamento de informática do Sistema Único de Saúde) website. Results: In about ten years related to the studied period, from 2010 to 2020, there were 2,946 hospitalizations of the elderly caused by pharmacological intoxications, being relevant in number of cases the classes of anticonvulsants, sedatives, hypnotics, and antiparkinsonian drugs. The region with the highest number of cases was the Southeast. There are significant differences in the probability of intoxication in the elderly, being greater in cases of exposure to alcohol, analgesic, antipyretic and anti-rheumatic drugs and drugs with action on the central nervous system. Conclusion: The results found show a growing trend of problems associated with the use of medicines by the elderly, making clear the importance of effective pharmacovigilance strategies aimed at the health of this population.

Realidade da ocorrência de eventos adversos em internação cirúrgica: estudo quantitativo e descritivo / Reality of the occurrence of adverse events in surgical internation: quantitative and descriptive study / Realidad de la ocurrencia de eventos adversos en internación quirúrgica: estudio cuantitativo y descriptivo

Objetivo: Verificar a ocorrência de eventos adversos como infecção do sítio cirúrgico, perda ou infecção do acesso venoso e quedas em pacientes internados em uma unidade de internação cirúrgica de um hospital de ensino do sul do Brasil. Método: Estudo quantitativo, exploratório-descritivo. Realizado de março a maio de 2019, em uma unidade de internação cirúrgica de um hospital universitário do sul do Brasil, com a utilização de dois roteiros estruturados. Foram incluídos e 128 participantes. Análise das variáveis categóricas representadas pela frequência absoluta e relativa e realizadas 701 avaliações. Resultados: Das 701 (100%) avaliações realizadas nos 128 (100%) participantes, houve eventos adversos em 104 (14,7%). Destes, 98 (14,0%) foram registrados mais de um evento adverso por avaliação. Os eventos adversos foram um (1,0%) queda, um (1,0%) infecção de acesso venoso, 33 (31,7%) infecção de sítio cirúrgico e 69 (66,3%) perda de acesso venoso. Conclusão: A ocorrência de eventos adversos evidencia a necessidade do gerenciamento de riscos e a melhoria da qualidade da assistência ao paciente no perioperatório. (AU)

Objective: To verify the occurrence of adverse events such as infection of the surgical site, loss or infection of the venous access and falls in patients admitted to a surgical inpatient unit of a teaching hospital in southern Brazil. Methods: Quantitative, exploratory-descriptive study. Held from March to May 2019, in a surgical inpatient unit of a university hospital in southern Brazil, using two structured scripts. 128 participants were included. Analysis of categorical variables represented by absolute and relative frequency and 701 evaluations were carried out. Results: Of 701 (100%) evaluations performed on 128 (100%) participants, there were adverse events in 104 (14.7%). these 98 (14.0%) recorded more than one adverse event per evaluation. Adverse events were one (1.0%) fall, one (1.0%) venous access infection, 33 (31.7%) surgical site infection and 69 (66.3%) loss of venous access. Conclusion: The occurrence of adverse events highlights the need for risk management and improving the quality of patient care in the perioperative period. (AU)

Objetivo: Verificar la ocurrencia de eventos adversos como infección del sitio quirúrgico, pérdida o infección del acceso venoso y caídas en pacientes ingresados en una unidad de hospitalización quirúrgica de un hospital universitario en el sur de Brasil. Métodos: Estudio cuantitativo, exploratorio-descriptivo. Se lleva a cabo de marzo a mayo de 2019, en una unidad de hospitalización quirúrgica de un hospital universitario en el sur de Brasil, utilizando dos guiones estructurados. Se incluyeron 128 participantes. Se realizaron análisis de variables categóricas representadas por frecuencia absoluta y relativa y 701 evaluaciones. Resultados: De las 701 (100%) evaluaciones realizadas en 128 (100%) participantes, hubo eventos adversos en 104 (14.7%). De estos, 98 (14.0%) registraron más de un evento adverso por evaluación. Los eventos adversos fueron uno (1.0%) caída, uno (1.0%) infección de acceso venoso, 33 (31.7%) infección del sitio quirúrgico y 69 (66.3%) pérdida de acceso venoso. Conclusión: La aparición de eventos adversos destaca la necesidad de gestionar el riesgo y mejorar la calidad de la atención al paciente en el período perioperatorio. (AU)

Pseudoaneurisma humeral secundario a punción arterial inadvertida / Brachial artery pseudoaneurysm secondary to inadvertent arterial puncture

RESUMEN Los pseudoaneurismas de la arteria humeral son infrecuentes, pero pueden asociarse a complicaciones de alta morbilidad como la isquemia de miembro superior. Comunicamos un caso de pseudoaneurisma humeral en el pliegue del codo, que se presentó como tumor pulsátil con leve disminución de la temperatura y parestesias en la mano homolateral de un año de evolución, debido a una punción arterial inadvertida durante la venopunción para extracción de sangre. Se trató con éxito mediante resección quirúrgica más reconstrucción vascular con bypass húmero-cubital y bypass húmero-radial ambos con vena safena. Se discuten las diversas opciones terapéuticas disponibles para los pseudoaneurismas humerales considerando las características anatómicas y la sintomatología del paciente.

ABSTRACT Brachial artery pseudoaneurysms are rare but can be associated with severe complications as ischemia of the upper extremity. We report a case of a brachial artery pseudoaneurysm in the crease of the elbow presenting as a pulsating mass with progressive growth over the past year. The ipsilateral hand was sightly cold and presented paresthesia. The lesion was due to inadvertent arterial puncture during venipuncture. The pseudoaneurysm was successfully treated with surgical resection and vascular reconstruction with a brachial to ulnar artery bypass and brachial to radial artery bypass with saphenous vein graft. The different therapeutic options available for brachial artery pseudoaneurysms are discussed, considering the anatomic characteristics and patients' symptoms.

¿Está exenta de consecuencias adversas la perforación iatrogénica de la vesícula biliar durante la colecistectomía laparoscópica electiva? / Iatrogenic gallbladder perforation during elective laparoscopic cholecystectomy, is it exempt from adverse consequences?

Resumen Objetivo: Este estudio se llevó a cabo para valorar las consecuencias de la perforación iatrogénica de la vesícula biliar (PIVB), investigando su asociación con complicaciones posoperatorias, uso de antibióticos y drenajes, duración de la cirugía y estancia posoperatoria. Materiales y Método: Se incluyeron 1.703 pacientes con colecistectomía laparoscópica electiva, divididos en dos grupos: con PIVB (Grupo 1; n = 321) y sin PIVB (Grupo 2; n = 1.382). Se compararon los resultados entre ambos grupos. Resultados: El porcentaje de PIVB fue de 18,85%. El vertido aislado de bilis ocurrió en 241 pacientes (14,15%) y el de bilis y cálculos en 80 pacientes (4,64%). La incidencia de infección del sitio quirúrgico no fue diferente entre ambos grupos. La incidencia de PIVB fue mayor en varones (43,3% vs 31,3%), pacientes con adherencias perivesiculares (17,75% vs. 10,5%) y pacientes con diagnóstico histológico de colecistitis aguda (11,52% vs. 4,92%). La PIVB se asoció significativamente con mayor duración de la cirugía (77,3 vs. 65,4 minutos), mayor uso de drenajes y antibióticos y mayor estancia posoperatoria. No hubo complicaciones tardías. Discusión y Conclusión: La PIVB no aumenta la incidencia de infección, pero se asocia con un mayor uso de drenajes y antibióticos, mayor duración de la cirugía y mayor estancia posoperatoria.

Aim: This study was conducted to evaluate the outcomes in patients with iatrogenic gallbladder perforation (IGP), investigating its association with postoperative complications, use of antibiotics and drains, operative time and postoperative stay. Materials and Method: 1703 patients who underwent elective laparoscopic cholecystectomy were included and divided in two groups: with IGP (Group 1, n = 321) and without IGP (Group 2, n = 1382). We compared the outcomes between both groups. Results: The IGP rate was 18.85%. Isolated bile spillage occurred in 241 patients (14.15%), and stone spillage in 80 patients (4.64%). The incidence of surgical site infections was not different between both groups. The IGP rate was significantly higher in male (43.3% vs 31.3%), in patients with perivesicular adhesions (17.75% vs 10.5%) and in patients with histologic diagnosis of acute cholecystitis (11.52% vs 4.92%). Operative time was significantly longer in patients with IGP (77.3 vs 65.4 minutes). Intraoperative drain and antibiotic use, as well as postoperative stay were, also, significantly higher in patients with IGP. There was not any late complication. Conclusión: Bile and gallstones spillage do not lead to an increase in surgical site infections, but is associated with an increased use of antibiotics and drains, longer operative time and longer postoperative stay.

Iatrogenic Acute Aortic Dissection in the Era of Minimally Invasive Cardiac Surgery - Experience of a Center and Review of Literature

Abstract Introduction: Iatrogenic acute aortic dissection (IAAD) type A is a rare but potentially fatal complication of cardiac surgery. Methods: The purpose of this article is to review the literature since the first reports of IAAD in 1978, examining its clinical characteristics and describing operative details and surgical outcomes. Moreover, we reviewed the recent literature to identify current trends and risk factors for IAAD in minimally invasive cardiac surgery procedures, often related to femoral artery cannulation for retrograde perfusion. Results: We found that IAAD ranges from 0.04 to 0.29% of cardiac patients in overall trials and ranged from 0.12 to 0.16% between 1978-1990, before the minimally invasive surgical era. And we concluded that since the first cases to the recent reports, the incidence of IAAD has not significantly changed. As minimally invasive procedures are on the rise, some authors think that the incidence of IAAD could increase in the future; we think that using all the precaution - such a strict monitoring of perfusion pressure throughout the intervention, avoiding extremely high jet pressures using vasodilators, repositioning of arterial cannula, or splitting perfusion in both femoral arteries -, this complication can be extremely reduced. Finally, we describe a very singular case occurring during mitral valve replacement followed by spontaneous dissection of left anterior descending artery one month later. Conclusion: The present article adds to the literature a more detailed clinical picture of this entity, including patients' characteristics, the mechanism, timing, and localization of the tear, and mortality details.

Reação de corpo estranho após reconstrução órbito-zigomático-maxilar com polimetilmetacrilato: relato de caso / Strange body reaction after orbit-zygomatic-maxillary reconstruction with polymethyl methacrylate: case report

Pacientes com históricos de defeitos ósseos provocados por infecções, malformação congênita, neoplasias, deformação por iatrogenia, radioterapia e trauma buscam contornos faciais mais harmônicos através da reabilitação cirúrgica. Para facilitar a reconstrução maxilofacial dois grupos de materiais podem ser utilizados, os enxertos ósseos e os materiais aloplásticos. O objetivo é relatar um caso incomum de infecção e exposição de material utilizado para enxertia a base de polimetilmetacrilato, bem como a sua posterior reabordagem cirúrgica. Embora o Polimetilmetacrilato aparente ser seguro, ele exibe complicações diversas em função da imunologia do hospedeiro, que poderá reagir de diferentes formas. Desse modo, faz-se necessário ressaltar a importância da prevenção e proservação de cada caso de forma individualizada(AU)

Patients with a history of bone defects caused by infections, congenital malformation, neoplasms, iatrogenic deformation, radiotherapy and trauma seek more harmonious facial contours through surgical rehabilitation. To facilitate maxillofacial reconstruction, two groups of materials can be used, bone grafts and alloplastic materials. The objective is to report an unusual case of infection and exposure of material used for grafting with polymethylmethacrylate, as well as its subsequent surgical approach. Although Polymethylmethacrylate appears to be safe, it exhibits different complications depending on the host's immunology, which may react in different ways. Thus, it is necessary to emphasize the importance of preventing and preserving each case individually(AU)

Sinusitis maxilar iatrogénica por material de impresión dental / Iatrogenic maxillary sinusitis by dental impression material

Introducción: La etiología de la sinusitis maxilar comprende diferentes causas primarias y secundarias. Siempre es preciso descartar de inicio aquellas causas iatrogénicas consecuencia de intervenciones previas. Objetivo: Realizar una revisión de las diferentes causas de sinusitis maxilar, con énfasis en las causas raras iatrogénicas y en el protocolo de actuación. Presentación del caso: Paciente varón de 60 años que presenta episodios de sinusitis maxilar. Como antecedentes quirúrgicos se había realizado quistectomía maxilar, tratamiento de fístula oroantral secundaria y rehabilitación protésica posterior. Tras estudio radiológico inicial se halló una masa intrasinusal, compatible al tacto con material de impresión dental. Conclusiones: Es importante antes de cualquier rehabilitación protésica y de la toma de modelos confirmar la ausencia de fístula oroantral para evitar la intrusión de material extraño en el seno maxilar(AU)

Introduction: The etiology of maxillary sinusitis comprises a number of primary and secondary causes. It is always necessary to initially rule out iatrogenic causes resulting from previous interventions. Objective: Carry out a review of the different causes of maxillary sinusitis, with an emphasis on the rare iatrogenic causes and the clinical management protocols. Case presentation: A male 60-year-old patient who experiences episodes of maxillary sinusitis. Surgical antecedents include maxillary cystectomy, treatment for secondary oroantral fistula and posterior prosthetic rehabilitation. Initial radiological examination revealed an intrasinus mass compatible to the touch with dental impression material. Conclusions: Before any sort of prosthetic rehabilitation and the taking of models, it is important to confirm the absence of an oroantral fistula, to prevent the entrance of foreign material into the maxillary sinus(AU)