Intoxicación por plaguicidas en autopsias medicolegales. Tegucigalpa 2014-2020 / Poisoning by pesticides in medicolegal autopsies. Tegucigalpa 2014- 2020

Justificación: Los plaguicidas han provocado un significativo problema de salud pública ya que han generado una importante carga a la mortalidad y a la morbilidad. Los suicidios con plaguicidas representan alrededor de un tercio de todos los suicidios en el mundo. Objetivo: Caracterizar las muertes relacionadas a plaguicidas, sometidas a autopsia médico legal en la Dirección de Medicina Forense de Tegucigalpa durante los años 2014- 2020. Metodología: Se consultó la base de datos digital la Dirección de Medicina Forense, encontrando 255 casos relacionados a muerte por plaguicidas de los que se seleccionaron 215 casos con expediente completo y disponible. Los cálculos estadísticos se realizaron con el programa PSPP. Resultados: Se encontraron 215 casos, el 58% eran hombres y el 42% mujeres, 54% eran solteros y 29% en unión libre. Sin escolaridad 11%, primaria incompleta 20%, primaria completa 15%, secundaria incompleta 12%, secundaria completa 10%. Respecto a la ocupación de los fallecidos, los oficios domésticos fue la más frecuente entre las mujeres y la agricultura entre los hombres. El 65% eran personas jóvenes menores de 40 años con una media de edad de 35 años (rango 8- 89a). La manera de muerte más frecuente fue suicida con el 71%. El plaguicida más utilizado como instrumento de muerte fue el fosfuro de aluminio (66%).Conclusión: La mayoría de las muertes por intoxicación con plaguicidas fueron suicidas; hombres jóvenes, menores de 40 años, solteros, con escolaridad que no sobrepasaba la secundaria; utilizaron las pastillas de fosfuro de aluminio como instrumento de autolesión. Se requiere estudiar más detalladamente el uso de tóxicos en general y de los plaguicidas en particular como instrumentos de autolesión y se evidencia la necesidad imperiosa de habilitar medidas de regulación para la comercialización y campañas de educación en la población para el uso y manejo adecuado...(AU)

Intoxicación fatal con paraquat por vía dérmica. Reporte de caso / Fatal paraquat poisoning by dermal exposure. Case report

Introducción: Por su alta letalidad el paraquat® es utilizado con fines suicidas, siendo la principal vía de uso, la oral; los casos por vía cutánea son escasos y raras veces son fatales. Este reporte presenta un caso de compromiso sistémico severo y muerte después de exposición dérmica a paraquat® . Resumen del caso: Paciente femenina de 47 años, soltera, ama de casa, de procedencia rural, con secundaria incompleta; e historia de aplicación de paraquat® en ulcera. A las 24h de aplicación presento fiebre, vómito y malestar general; al ingreso hospitalario presento además ictericia generalizada, insuficiencia renal aguda, insuficiencia respiratoria, deterioro progresivo de su estado de salud y muerte, por lo que fue remitida a autopsia médico legal. Los hallazgos de autopsia descartaron la ingesta oral y mostraron páncreas hemorrágico, riñones congestivos, hígado de tamaño aumentado (2550g) y hemorrágico, corazón aumentado de tamaño. Los estudios histopatológicos mostraron daño alveolar difuso, (membranas hialinas, edema y hemorragia); neumonía en pulmón y congestión visceral generalizada...(AU)

[Effects and significance of continuous hemoperfusion on patients with diquat poisoning].

OBJECTIVE: To investigate the effect of continuous hemoperfusion (HP) on the levels of soluble CD14 isoform (sCD14-st) and neutrophil gelatinase-associated lipocalin (NGAL) on patients with diquat (DQ) poisoning and its significance. METHODS: A total of 86 patients with acute DQ poisoning admitted to the department of emergency medicine, Harrison International Peace Hospital Affiliated to Hebei Medical University from May 2018 to August 2021 were enrolled and divided into the intermittent HP group (40 cases) and the continuous HP group (46 cases) according to the random number table method. All patients received basic treatment and continuous veno-venous hemofiltration (CVVH) within 24 hours after admission. On this basis, the intermittent HP group received HP treatment within 2 hours, lasting 2 hours each time for every 8 hours, 3 times in all; the continuous HP group received continued HP treatment until there was no DQ component in urine samples. Serum NGAL levels were detected in all patients before treatment and at 3 hours, 12 hours, 24 hours, 2 days, 3 days, 5 days, and 7 days after treatment. At the same time, serum sCD14-st, blood lactate (Lac), arterial partial pressure of oxygen (PaO2), serum creatinine (SCr), MB isoenzyme of creatine kinase (CK-MB) and interleukin-18 (IL-18) levels were detected before treatment and at 24 hours, 3 days, and 7 days after treatment. Kaplan-Meier survival curve was drawn to analyze the 28-day survival of patients. RESULTS: Before treatment, there was no significant difference in serum NGAL, sCD14-st, Lac, PaO2, SCr, CK-MB and IL-18 levels between the two groups. With the prolongation of treatment, the serum levels of NGAL, sCD14-st, Lac, SCr, CK-MB and IL-18 in the intermittent HP group increased at first and then decreased. Serum levels of NGAL, sCD14-st, CK-MB and IL-18 reached their peaks at 24 hours after treatment, and the Lac and SCr levels reached their peaks at 3 days after treatment. In addition, the levels of the above indexes at each time point in the continuous HP group were all significantly lower than those in the intermittent HP group [after 24 hours of treatment: NGAL (µg/L) was 345.90±30.75 vs. 404.24±38.79, sCD14-st (ng/L) was 1 941.88±298.02 vs. 2 656.35±347.93, CK-MB (U/L) was 30.67±9.11 vs. 43.28±8.06, IL-18 (ng/L) was 139.49±16.29 vs. 177.98±27.85; 3 days of treatment: Lac (mmol/L) was 2.98±0.26 vs. 3.72±0.49, SCr (µmol/L) was 125.01±24.24 vs. 156.74±28.88; all P < 0.05]. However, there was no significant difference in PaO2 levels between the two groups at each time point after treatment. The Kaplan-Meier survival curve showed that the 28-day mortality of patients in the continuous HP group was significantly lower than that in the intermittent HP group [26.09% (12/46) vs. 52.50% (21/40); Log-Rank test: χ 2 = 7.288, P = 0.007]. CONCLUSIONS: Continuous HP could effectively reduce serum sCD14-st, NGAL levels and 28-day mortality in patients with DQ poisoning, with good curative effect.

Body Packer y Body Stuffer: Serie de Casos. Revisión / Body Packer y Body Stuffer: serie de casos. Revision

"Body packing", "Body pushing" y "Body stuffing" son distintas formas de transportar sustancias ilegales dentro del cuerpo humano. Frente al ingreso en la unidad de emergencias de un "Body Packer", conocido como "tragador de paquetes" con fines de contrabando o un "Body Stuffer" llamados "tragadores rápidos", quienes ingieren en forma compulsiva paquetes manufacturados para la venta de sustancias ante la posibilidad de ser sorprendidos por agentes de la ley; se plantean una serie de desafíos en cuanto al tratamiento que al día de hoy permanecen en debate. Generalmente se prefiere mantener una conducta conservadora facilitando la expulsión de los paquetes. En aquellos casos en los que los pacientes presenten paquetes atascados o rotos o no mejoren con el tratamiento conservador, se recomienda el tratamiento quirúrgico.El presente trabajo tiene por objetivo reportar una serie de casos internados por ingesta de paquetes potencialmente peligrosos que se sometieron a una evacuación farmacológica y/o quirúrgica en 8 pacientes y una revisión bibliográfica sobre el tema.

"Body packing", "Body pushing", and "Body stuffing" are different ways to use the interior of the human body to transport illegal substances. In the face of a "Body Packer" or a "Body Stuffer" known as "fast swallowers", which are those cases in which they compulsively swallow manufactured packages for the sale of substances before the possibility of being surprised by law enforcement officers, a series of challenges present themselves regarding the treatment, which is currently up for debate. Generally, a conservative conduct is preferred, facilitating the expulsion of the packages. In those cases, in which patients have stuck or broken packages or do not improve with conservative treatment, surgical treatment is recommended.The present paper aims to report a series of cases in which the patients were admitted due to an intake of potentially dangerous packages and put through a pharmacological evacuation and/or surgical evacuation of 8 patients, and a bibliographical revision on the subject.

Outcomes Associated With Caustic Ingestion Among Adults in a National Prospective Database in France.

Importance: Caustic ingestion in adults may result in death or severe digestive sequelae. The scarcity of nationwide epidemiological data leads to difficulties regarding the applicability of their analysis to less specialized centers, which are nevertheless largely involved in the emergency management of adverse outcomes following caustic ingestion. Objective: To assess outcomes associated with caustic ingestion in adults across a nationwide prospective database. Design, Settings, and Participants: Adult patients aged 16 to 96 admitted to the emergency department for caustic ingestion between January 2010 and December 2019 were identified from the French Medical Information System Database, which includes all patients admitted in an emergency setting in hospitals in France during this period. Exposure: Esophageal caustic ingestion. Main Outcomes and Measures: The primary end point was in-hospital patient outcomes following caustic ingestion. Multivariate analysis was performed to assess independent predictors of in-hospital morbidity and mortality. Results: Among 22 657 226 patients admitted on an emergency outpatient basis, 3544 (0.016%) had ingested caustic agents and were included in this study. The median (IQR) age in this population was 49 (34-63) years, and 1685 patients (48%) were women. Digestive necrosis requiring resection was present during the primary hospital stay in 388 patients with caustic ingestion (11%). Nonsurgical management was undertaken in 3156 (89%). A total of 1198 (34%) experienced complications, and 294 (8%) died. Pulmonary complications were the most frequent adverse event, occurring in 869 patients (24%). On multivariate analysis, predictors of mortality included old age, high comorbidity score, suicidal ingestion, intensive care unit admission during management, emergency surgery for digestive necrosis, and treatment in low-volume centers. On multivariate analysis, predictors of morbidity included old age, higher comorbidity score, intensive care unit admission during management, and emergency surgery for digestive necrosis. Conclusions and Relevance: In this study, referral to expert centers was associated with improved early survival after caustic ingestion. If feasible, low-volume hospitals should consider transferring patients to larger centers instead of attempting on-site management.

Óbitos e internações de vítimas de eventos toxicológicos não medicamentosos no Brasil, 2009 a 2018 / Muertes y hospitalizaciones de víctimas de eventos toxicológicos no medicamentosos en Brasil, 2009 a 2018 / Deaths and hospitalizations of victims of non-drug toxicological events in Brazil, 2009 to 2018

Objetivo: determinar a taxa de internações por eventos agudos de intoxicação não medicamentosa (NMx) e analisar a mortalidade decorrente desses agravos no Brasil, de 2009 a 2018. Métodos: estudo de série temporal, no qual se analisaram registros de internações por "tratamento de intoxicação ou envenenamento por exposição a substâncias de uso não medicamentoso" no Sistema de Informações Hospitalares (SIH), por regressão de Prais-Winsten. Resultados: ocorreram 125.570 internações em virtude de intoxicação NMx. A taxa média de internações foi de 6,3/100 mil habitantes, sendo maior no sexo masculino (8,0/100 mil hab.) comparado ao feminino (4,6/100 mil hab.). A taxa de internações e a mortalidade geral de internações por intoxicação NMx diminuíram de 9,4 para 4,5/100 mil hab. e de 2,5 para 1,6/1 milhão de hab., respectivamente. Conclusões: houve redução da taxa de internações e da mortalidade por intoxicações NMx durante a década analisada.

Objetivo: determinar la tasa de hospitalizaciones por eventos agudos de intoxicación no medicamentosa (NMx) y analizar la mortalidad resultante en Brasil de 2009 a 2018. Métodos: estudio de serie temporal en el que se analizaron los registros de hospitalizaciones por "tratamiento de intoxicación o envenenamiento por exposición a sustancias de uso no farmacológico" del Sistema de Información Hospitalaria (SIH) por la regresión de Prais-Winsten. Resultados: hubo 125.570 hospitalizaciones por intoxicación NMx. La mortalidad promedio de hospitalizaciones fue de 6,3/100 mil hab., siendo más alta en el sexo masculino (8,0/100 mil hab.) en comparación con el femenino (4,6/100 mil hab.). La tasa de hospitalizaciones y la mortalidad global de las hospitalizaciones por NMx disminuyeron de 9,4 a 4,5 por 100 mil hab. y de 2,5 a 1,6 por 1 millón de hab., respectivamente. Conclusiones: hubo reducción en la tasa de hospitalizaciones y en la mortalidad por intoxicaciones NMx durante la década analizada.

Objective: to determine the rate of hospitalizations due to acute non-drug poisoning (NDP) events and to analyze mortality arising from these health conditions in Brazil from 2009 to 2018. Methods: this was a time-series study using Prais-Winsten regression to analyze records of hospitalizations for "treatment of intoxication or poisoning due to exposure to non-drug substances" held on the Hospital Information System. Results: there were 125,570 hospitalizations due to NDP. The average hospitalization rate was 6.3/100,000 inhabitants, although it was higher in males (8.0/100,000 inhab.) compared to females (4.6/100,000 inhab.). The hospitalization rate and the overall mortality rate due NDP to fell from 9.4 to 4.5/100,000 inhab. and from 2.5 to 1.6/1 million inhab., respectively. Conclusions: there was a reduction in the NDP hospitalization rate and in mortality due to NDP during the decade analyzed.

Increased risk of fatal intoxication and polypharmacy among psychiatric patients at death.

Patients suffering from psychiatric disorders have an excess mortality and a shorter life span expectancy compared to the general population. Furthermore, they are treated with multiple drugs and are known to have an increased risk of drug abuse. In this study, we aimed at investigating the pharmaceutical drug and drug of abuse profiles of the deceased included in the Danish prospective autopsy-based forensic study on psychiatric patients, SURVIVE. Using the postmortem systematic toxicological analysis results, we identified 129 different consumed compounds in our population (n = 443). Polypharmacy (≥5 compounds) was detected in 39.5% of the deceased. Deceased with a psychiatric diagnosis or who died from a fatal intoxication had significantly more compounds at the time of their death compared to having either no psychiatric diagnosis or another cause of death, respectively. Evidence of drug abuse was present, as 29.8% of our total population had consumed either methadone or illicit drugs of abuse, excluding tetrahydrocannabinol. Of those deceased with a psychiatric diagnosis, 33.6% had either consumed methadone or illicit drugs of abuse, a greater number than those without a psychiatric diagnosis. Fatal intoxication was the most frequent cause of death (40.6%) with methadone as the major intoxicant. Here, we found that those without a psychiatric diagnosis had fewer fatal pharmaceutical drug intoxications compared to the psychiatric diagnosis groups. Our findings add further context to understanding the excess mortality of psychiatric patents, since there is an increased occurrence of fatal intoxication, polypharmacy, and drug abuse in this population.

Severe acute toxic exposures in children and adolescents: case series / Exposições tóxicas agudas graves em crianças e adolescentes: série de casos

ABSTRACT Objective: To describe a case series of severe acute toxic exposures (SATE) in individuals <20 years old followed-up by a regional Poison Control Center (PCC). Methods: Descriptive cross-sectional study. All patients who were <20yo and classified as score 3 (severe) and 4 (fatal) following Poisoning Severity Score were included for analysis. According to the outcome, patients were classified as PSS 3 when they developed intense clinical manifestations with risk of death or important sequelae; and as PSS 4 when death had resulted from direct cause or complication of the initial exposure. The data of patients were obtained from the Brazilian electronic database system (DATATOX). Results: During the biennium 2014-2015, Campinas PCC followed up 5,095 patients <20yo, with 30 being classified as SATE (PSS=3, n=24; PSS=4, n=6). The exposures circumstances were unintentional (15); intentional (14; suicide attempt = 11; street drugs consumption = 3); and not explained (1). The exposures were significantly more frequent in adolescents >14yo (n=17; p<0.01). The involved agents were venomous animals (8; scorpions=5); medicines (8; miscellaneous=6); chemicals (6); illegal rodenticides containing acetylcholinesterase inhibitors (chumbinho, 4); drugs of abuse (3); button battery (1). Three patients evolved with sequels (esophageal stricture post-corrosive ingestion). The median length of hospital stay was 6 days (IQR: 5-12 days); 26 patients were treated in intensive care units, and 22 of them needed mechanical ventilation; 12, inotropic/vasopressors; and 3, renal replacement therapy. Conclusions: Scorpion stings and poisonings caused by medicines and chemicals were the main causes of SATE. The SATE were significantly more frequent in adolescents, due to deliberate self-poisoning.

RESUMO Objetivo: Descrever uma série de casos de exposições tóxicas agudas graves (ETAG) em pacientes <20 anos seguidos por um Centro de Informação e Assistência Toxicológica (CIATox) regional. Métodos: Estudo descritivo de corte transversal. Incluídos no estudo todos os casos classificados como escore 3 (graves) e 4 (fatais) de acordo com o escore de gravidade de intoxicações (poisoning severity score - PSS). Segundo o PSS, os casos são classificados em relação ao desfecho como escore 3 quando os pacientes desenvolveram manifestações clínicas intensas, com risco de morte ou que resultaram em sequelas importantes; e escore 4 quando a morte foi resultado de causa direta ou por complicação da exposição. Os dados analisados foram obtidos da base eletrônica brasileira do Sistema Nacional de Informações Tóxico-Farmacológicas DATATOX. Resultados: No biênio 2014-2015 o CIATox de Campinas atendeu 5.095 casos de pacientes <20 anos, dos quais 30 foram classificados como ETAG (PSS=3, n=24; PSS=4, n=6). Quanto à circunstância, 15 foram acidentais, 14 intencionais (11 por tentativas de suicídio e três por abuso de drogas) e um de causa não esclarecida, sendo significativamente mais frequentes nos adolescentes >14 anos (n=17; p<0,01). Os grupos de agentes envolvidos foram: animais peçonhentos (8; escorpiões=5); medicamentos (8; associações=6); produtos químicos de uso domiciliar/industrial (6); rodenticidas inibidores da colinesterase de uso ilegal (chumbinho=4); drogas de abuso (3); e bateria no formato de disco (1). Três pacientes evoluíram com sequelas (estenose esofágica pós-ingestão de corrosivos). O tempo mediano de internação foi de seis dias (mediana, quartis e intervalo interquartil=5-12 dias), sendo 26 pacientes admitidos em unidades de cuidados intensivos, dos quais 22 necessitaram de ventilação mecânica, 12 de inotrópicos/vasopressores e três de terapia de substituição renal. Conclusões: Escorpionismo e intoxicações por medicamentos e por produtos químicos de uso domiciliar/industrial foram as principais causas de ETAG, sendo elas significativamente mais frequentes em adolescentes, principalmente por tentativas de suicídio.

Availability and storage of hazardous products in households in the metropolitan region of manaus: a population-based survey, 2015 / Disponibilidade e armazenamento de produtos perigosos em domicílios da região metropolitana de manaus: estudo de base populacional, 2015

ABSTRACT Objective: The availability of hazardous products in households increases the risks of poisoning. The present study aimed to assess the frequency and associated factors of the availability and storage of hazardous products in residences in the metropolitan region of Manaus. Methods: Population-based and cross-sectional study conducted in 2015 with adults selected with three-stage probabilistic sampling. Participants were interviewed face-to-face. Prevalence ratio (PR) of the presence of hazardous products (presence of chumbinho [illegal anti-cholinesterase rodenticide], artisanal cleaning products, and unsafe storage of these products and medications) and 95% confidence intervals (95%CI) were calculated with Poisson regression with robust variance, weighted by the complex sampling method adopted. Results: A total of 4,001 participants was included, of which 53.0% (95%CI 51.5-54.6) reported presence of hazardous products in their households, 36.3% (95%CI 34.8-37.8) had unsafe storage, 16.2% (95%CI 15.1-17.4) had artisanal cleaning products, and 8.2% (95%CI 7.4-9.1) had chumbinho. Households with children ≤5 years old had safer storage (PR=0.78; 95%CI 0.71-0.86) and more artisanal products (PR=1.30; 95%CI 1.11-1.51). Presence of artisanal products was higher in lower educational levels (PR=2.20; 95%CI 1.36-3.57) and lower economic classifications (PR=1.63; 95%CI 1.25-2.13). Conclusions: Over half of the households in the metropolitan region of Manaus kept hazardous products; one-third stored them unsafely. Artisanal cleaning products and chumbinho were frequently present. Households with children had safer storage of products, and socioeconomic factors affected the availability of such hazardous products.

RESUMO Objetivo: A disponibilidade de produtos perigosos em domicílios aumenta os riscos de intoxicações. Este estudo objetivou avaliar a frequência e os fatores associados à disponibilidade e armazenamento de produtos perigosos em residências da Região Metropolitana de Manaus. Métodos: Estudo transversal de base populacional realizado em 2015 com adultos selecionados por amostragem probabilística em três estágios. Os participantes foram entrevistados pessoalmente. A razão de prevalência (RP) da presença de produtos perigosos (presença de chumbinho [rodenticida anticolinesterase ilegal], produtos de limpeza artesanais e armazenamento inseguro desses produtos e de medicamentos) e intervalos de confiança de 95% (IC95%) foram calculados por regressão de Poisson com variância robusta, ponderada pela amostragem complexa adotada. Resultados: 4.001 participantes foram incluídos, dos quais 53,0% (IC95% 51,5-54,6) reportaram a presença de produtos perigosos em seus domicílios, 36,3% (IC95% 34,8-37,8) apresentaram armazenamento inseguro, 16,2% (IC95% 15,1-17,4) possuíam produtos de limpeza artesanais e 8,2% (IC95% 7,4-9,1) possuíam chumbinho. Os domicílios com crianças menores de 5 anos apresentaram armazenamento mais seguro (RP=0,78; IC95% 0,71-0,86) e mais produtos artesanais (RP=1,30; IC95% 1,11-1,51). Presença de produtos artesanais foi maior em menores níveis de escolaridade (RP=2,20; IC95% 1,36-3,57) e menores classificações econômicas (RP=1,63; IC95% 1,25-2,13). Conclusões: Mais da metade dos domicílios da Região Metropolitana de Manaus possuía produtos perigosos; um terço os armazenava sem segurança. Produtos de limpeza artesanais e chumbinho estavam frequentemente presentes. Os domicílios com crianças apresentaram armazenamento mais seguro de produtos e fatores socioeconômicos afetaram a disponibilidade de tais produtos perigosos.

Poisoning and associated factors to death from pesticides: case-control study, Brazil, 2017. / Intoxicações e fatores associados ao óbito por agrotóxicos: estudo caso controle, Brasil, 2017.

BACKGROUND: Pesticide poisoning causes high morbidity and mortality. Surveillance is required for post-marketing monitoring of these products. AIM: To assess poisonings and associated factors with lethality by pesticides. METHOD: This is a case-control study based on the cases of pesticide poisoning assisted in 2017 by Brazilian Poison Control Centers. Patients who died were the cases and the survivors, the control. The odds ratio (OR) of death and 95% confidence interval (CI) were calculated. From the regression model, a predictive model of death was developed, stratified by age, gender and occupational context to investigate the risk of agricultural workers poisoned by extremely hazardous agents. RESULTS: 3,826 patients poisoned by pesticides were identified, of which 146 died. Older people (OR = 4.94; 95%CI 2.49 - 9.80), males (OR = 1.68; 95%CI 1.15 - 2.46), agricultural workers (OR = 2.20; 95%CI 1.15 - 4.24), suicide attempts (OR = 13.27; 95%CI 6.48 - 27.19) and exposure to extremely hazardous products (OR = 2.77; 95%CI 1.84 - 4.16) odds of death from pesticide poisoning. CONCLUSION: Out of 100 pesticides poisoning, four died. Elderly, males, working in the agricultural sector, suicide attempts and extremely hazardous products had a higher risk of death.

Análise dos óbitos decorrentes de intoxicação ocorridos no Brasil de 2010 a 2015 com base no Sistema de Informação sobre Mortalidade (SIM) / Analysis of deaths by intoxication that occurred in Brazil from 2010 to 2015 based on the Mortality Information System (SIM)

Resumo Muitos estudos analisam o perfil epidemiológico dos óbitos causados por um único agente tóxico. No entanto, análises mais amplas da mortalidade podem ser obtidas avaliando múltiplos agentes em um mesmo período de tempo. Com esse objetivo, foi realizado um estudo descritivo retrospectivo dos óbitos decorrentes de intoxicações ocorridos de 2010 a 2015 no Brasil, registrados pelo SIM. Os óbitos foram selecionados de acordo com os códigos da CID-10 relacionados a intoxicações. Foram registrados pelo SIM, no período do estudo, 18.247 óbitos decorrentes de intoxicação, resultando em crescimento de 3% no coeficiente de mortalidade. Os agentes que mais causaram óbitos foram os agrotóxicos (24%) seguidos dos medicamentos (23%) e das drogas de abuso (22%). Com exceção dos medicamentos, em que a participação do sexo feminino foi de 52%, verificou-se maior concentração do sexo masculino para todos os agentes e na maioria das faixas etárias. Somente para os medicamentos e agrotóxicos, o suicídio foi a principal circunstância dos óbitos. Os resultados apresentados foram capazes de delinear um perfil de mortalidade para cada um dos principais agentes tóxicos estudados.

Abstract Many studies analyze the epidemiological profile of deaths caused by a single toxic agent. However, broader mortality analyses can be obtained by evaluating multiple agents over the same period of time. For this purpose, a retrospective descriptive study was carried out of the deaths by intoxication registered in the Mortality Information System that occurred in Brazil from 2010 to 2015. Deaths were selected according to ICD-10 codes related to intoxication. There were 18,247 deaths and an increase of 3% of rates of mortality by intoxication during the period. The agents that caused the most deaths were pesticides (24%) followed by medication (23%) and street drugs (22%). With the exception of medication, where the female participation was 52%, there was a higher concentration of males for all agents and in most of the age groups. Only in the case of medication and pesticides was suicide the main circumstance of deaths. The results presented made it possible to define a mortality profile for each of the major toxic agents studied.

The impact of co-morbidities on a 6-year survival after methanol mass poisoning outbreak: possible role of metabolic formaldehyde.

Context: The influence of co-morbid conditions on the outcome of acute methanol poisoning in mass poisoning outbreaks is not known.Objective: The objective of this is to study the impact of burden of co-morbidities, complications, and methanol-induced brain lesions on hospital, follow-up, and total mortality.Methods: All patients hospitalized with methanol poisoning during a mass poisoning outbreak were followed in a prospective cohort study until death or final follow-up after 6 years. The age-adjusted Charlson co-morbidity index (ACCI) score was calculated for each patient. A multivariate Cox regression model was used to calculate the adjusted hazards ratio (HR) for death. The survival was modeled using the Kaplan-Meier method.Results: Of 108 patients (mean age with SD 50.9 ± 2.6 years), 24 (54.4 ± 5.9 years) died during hospitalization (mean survival with SD 8 ± 4 days) and 84 (49.9 ± 3.0 years; p = .159) were discharged, including 27 with methanol-induced brain lesions. Of the discharged patients, 15 (56.3 ± 6.8 years) died during the follow-up (mean survival 37 ± 11 months) and 69 (48.5 ± 3.3 years; p = .044) survived. The hospital mortality was 22%, the follow-up mortality was 18%; the total mortality was 36%. Cardiac/respiratory arrest, acute respiratory failure, multiorgan failure syndrome, and arterial hypotension increased the HR for hospital and total (but not follow-up) mortality after adjustment for age, sex, and arterial pH (all p < .05). All patients who died in the hospital had at least one complication. A higher ACCI score was associated with greater total mortality (HR 1.22; 1.00-1.48 95% CI; p = .046). Of those who died, 35 (90%) had a moderate-to-high ACCI. The Kaplan-Meier curve demonstrated that patients with a high ACCI had greater follow-up mortality compared to ones with low (p = .027) or moderate (p = .020) scores. For the patients who died during follow-up, cancers of different localizations were responsible for 7/15 (47%) of the deaths.Conclusions: The character and number of complications affected hospital but not follow-up mortality, while the burden of co-morbidities affected follow-up mortality. Methanol-induced brain lesions did not affect follow-up mortality. Relatively high cancer mortality rate may be associated with acute exposure to metabolic formaldehyde produced by methanol oxidation.

Increased overall and cause-specific mortality associated with disability among workers' compensation claimants with low back injuries.

BACKGROUND: Mortality tends to be higher among people who do not work than among workers, but the impact of work-related disability on mortality has not been well studied. METHODS: The vital status through 2015 was ascertained for 14 219 workers with an accepted workers' compensation claim in West Virginia for a low back injury in 1998 or 1999. Mortality among the cohort compared with the West Virginia general population was assessed using standard life table techniques. Associations of mortality and disability-related factors within the cohort were evaluated using Cox proportional hazards regression. RESULTS: Compared to the general population, mortality from accidental poisoning was significantly elevated among the overall cohort and lost-time claimants. Most deaths from accidental poisoning in the cohort were due to drug overdoses involving opioids. Mortality from intentional self-harm was also significantly elevated among lost-time claimants. In internal analyses, overall mortality and mortality from cancer, heart disease, intentional self-harm, and drug overdoses involving opioids was significantly associated with lost time. Overall mortality and mortality from drug overdoses involving opioids were also significantly associated with amount of lost time, permanent partial disability, and percent permanent disability. Heart disease mortality was also significantly associated with the amount of lost time. CONCLUSIONS: The results suggest that disability itself may impact mortality risks. If confirmed, these results reinforce the importance of return to work and other efforts to reduce disability.

Intoxicações e fatores associados ao óbito por agrotóxicos: estudo caso controle, Brasil, 2017 / Poisoning and associated factors to death from pesticides: case-control study, Brazil, 2017

Resumo: Introdução: As intoxicações por agrotóxicos causam elevada morbimortalidade. A vigilância é necessária da produção até o uso desses produtos. Objetivo: Analisar as intoxicações e os fatores associados à letalidade por agrotóxicos. Método: Trata-se de estudo caso controle baseado nos atendimentos de intoxicação por agrotóxicos realizados em 2017 por centros de informação e assistência toxicológica do Brasil. Pacientes que evoluíram a óbito compuseram o grupo caso, e os sobreviventes, o grupo controle. Calculou-se odds ratio (OR) dos fatores de risco para óbito, com intervalo de confiança (IC) de 95%. Com base no modelo de regressão, desenvolveu-se um modelo preditivo de morte, estratificado por faixa etária, sexo e contexto ocupacional, para investigação do risco dos trabalhadores agropecuários intoxicados por agentes extremamente tóxicos. Resultados: Identificaram-se 3.826 pacientes intoxicados por agrotóxicos, dos quais 146 evoluíram para óbito. Idosos (OR = 4,94; IC95% 2,49 - 9,80), homens (OR = 1,68; IC95% 1,15 - 2,46), trabalhadores do setor agropecuário (OR = 2,20; IC95% 1,15 - 4,24), tentativas de suicídio (OR = 13,27; IC95% 6,48 - 27,19) e exposição a produtos extremamente tóxicos (OR = 2,77; IC95% 1,84 - 4,16) apresentaram mais chances de óbito nas intoxicações por agrotóxicos. Conclusão: Em cada 100 intoxicações por agrotóxicos, quatro evoluíram para óbito. Idosos, homens, trabalho no setor agropecuário, tentativas de suicídio e produtos extremamente tóxicos apresentaram mais chances de óbito.

ABSTRACT: Background: Pesticide poisoning causes high morbidity and mortality. Surveillance is required for post-marketing monitoring of these products. Aim: To assess poisonings and associated factors with lethality by pesticides. Method: This is a case-control study based on the cases of pesticide poisoning assisted in 2017 by Brazilian Poison Control Centers. Patients who died were the cases and the survivors, the control. The odds ratio (OR) of death and 95% confidence interval (CI) were calculated. From the regression model, a predictive model of death was developed, stratified by age, gender and occupational context to investigate the risk of agricultural workers poisoned by extremely hazardous agents. Results: 3,826 patients poisoned by pesticides were identified, of which 146 died. Older people (OR = 4.94; 95%CI 2.49 - 9.80), males (OR = 1.68; 95%CI 1.15 - 2.46), agricultural workers (OR = 2.20; 95%CI 1.15 - 4.24), suicide attempts (OR = 13.27; 95%CI 6.48 - 27.19) and exposure to extremely hazardous products (OR = 2.77; 95%CI 1.84 - 4.16) odds of death from pesticide poisoning. Conclusion: Out of 100 pesticides poisoning, four died. Elderly, males, working in the agricultural sector, suicide attempts and extremely hazardous products had a higher risk of death.

Demografia, óbitos e indicadores de agravamento nas internações por intoxicações medicamentosas entre menores de 5 anos no Brasil / Demographics, deaths and severity indicators in hospitalizations due to drug poisoning among children under age five in Brazil

RESUMO: Introdução: No Brasil, os medicamentos são os principais agentes causadores de intoxicação, e o maior número de casos desse problema envolve menores de 5 anos. Assim, o objetivo deste estudo foi descrever as internações por intoxicação medicamentosa nessa população quanto a sua demografia, óbitos e indicadores de agravamento. Métodos: Verificou-se a frequência das internações por intoxicação medicamentosa entre 2003 e 2012, utilizando os dados do Sistema de Informação Hospitalar. As variáveis utilizadas foram ano, sexo, idade, município de residência e de internação, evolução do paciente, diagnóstico principal, diagnóstico secundário, natureza do estabelecimento de saúde e valor referente aos gastos de unidade de terapia intensiva. Resultados: Ocorreram 17.725 internações por intoxicação medicamentosa em menores de 5 anos de idade, com o predomínio do sexo masculino e de crianças de 2 anos. As internações fora do município de residência deram-se em 25% dos casos, com predomínio da Região Nordeste. A proporção de óbitos nas internações foi de 0,4%, com maior número de óbitos na Região Sudeste. Conclusão: Apesar da diminuição do número de internações no período, permaneceram disparidades regionais que podem ser atenuadas com a oferta de atenção especializada às intoxicações medicamentosas nos municípios, ampliando o acesso a cuidados de maior complexidade.

ABSTRACT: Introduction: In Brazil, drugs are the main causative agents of poisonings, and children under age five are the group with the highest number of cases. The objective of the present study was to describe hospitalizations due to drug poisoning in this population regarding demographics, deaths and worsening indicators in hospitalizations. Methods: The frequency of hospitalizations for drug poisoning between 2003 and 2012 was verified using data from the Hospital Information System. The study variables were year, gender, age, place of residence and hospitalization, patient follow-up, main diagnosis, secondary diagnosis, nature of the health establishment and amount related to Intensive Care Unit expenses. Results: There were 17,725 hospitalizations due to drug poisoning in children under five, predominantly two-year-old male children. The hospitalizations outside the city of residence occurred in 25% of the cases, with predominance in the Northeastern region. The proportion of deaths in hospitalizations was 0.4%, with a higher number of deaths in the Southeastern region. Conclusion: Despite the decrease in the number of hospitalizations in the period, regional disparities remained, which could be attenuated with the provision of specialized attention to drug poisonings in municipalities, expanding the access to a more complex care.

Número de internações e óbitos associados à intoxicação infantil / Number of hospitalizations and deaths associated with child intoxication

Objetivo: Analisar o número de internações e óbitos vinculados à intoxicação de crianças; apontar os principais fatores tóxicos que levaram à morbimortalidade local; apresentar a faixa etária com maior incidência e os municípios do Estado estudado com maior número de óbitos. Métodos: Estudo descritivo, de corte transversal, com coleta retrospectiva de dados e análise quantitativa de dados secundários em saúde, cujas fontes foram do Sistema de Informações sobre Mortalidade e do Sistema de Informações Hospitalares do Sistema Único de Saúde (SUS). A população analisada foi de crianças de zero a 9 anos de idade, vítimas de intoxicação exógena e residentes no Estado do Tocantins, no ano de 2015. Resultados: Na amostra, 1.363 crianças foram vítimas de intoxicação exógena, prevalecendo internações do sexo masculino (893) na faixa etária de 5 a 9 anos de idade (62%) e a capital Palmas como o local com maior número de internações (498). Ocorreu um óbito de uma criança do sexo feminino, com 1 a 4 anos de idade, em Araguaína, tendo como causa envenenamento acidental e exposição a substâncias nocivas. Conclusão: Apesar da baixa mortalidade registrada, a intoxicação exógena em crianças apresenta consequências orgânicas, emocionais e financeiras. Para a redução dos casos, é necessária a ação conjunta entre o SUS, profissionais da saúde e responsáveis, além da produção de embalagens mais seguras, que evitem o contato das crianças com tais substâncias. (AU)

Objective: To analyze the number of hospitalizations and deaths associated with child intoxication; to point out the main toxic factors that led to local morbidity and mortality; to present the age group with the highest incidence and the municipalities with the highest number of deaths. Methods: This is a cross-sectional, descriptive study with retrospective data collection and quantitative analysis of secondary health data, from the Mortality Information System and the Hospital Information System of the Unified Health System. The population analyzed consisted of children from zero to 9 years old living in the state of Tocantins in 2015 and experiencing exogenous intoxication Results: In the sample, 1,363 children were victims of exogenous intoxication, with a prevalence of male hospitalizations (893), in the age group of 5 to 9 years old (62%); the capital of the state, Palmas, was the place with the highest number of hospitalizations (498). There was a death of a female child, aged 1 to 4 years, in the city of Araguaína, from accidental poisoning and exposure to harmful substances. Conclusion: In spite of the low mortality recorded, exogenous intoxication in children has organic, emotional, and financial consequences. To reduce cases, the joint action of the Unified Health System, health professionals, and people in charge is required, as well as the production of safer packaging to avoid contact of children with such substances. (AU)

Qualitative identification of imidacloprid in postmortem animal tissue by gas chromatography-tandem mass spectrometry.

During an avian mass mortality event investigation at the National Fish and Wildlife Forensic Laboratory in Ashland, OR, imidacloprid became an insecticide of concern. A qualitative analytical toxicology screen of seeds, plucks (tongue, esophagus, and trachea), and ventricular contents was requested. A method for the extraction and qualitative analysis of the insecticide in animal tissues was therefore developed. The procedure relies on a combined Food Emergency Response Network (FERN) and QuEChERS (Quick, Easy, Cheap, Effective, Rugged, and Safe) approach to sample extraction followed by qualitative analysis by gas chromatography-tandem mass spectrometry. Since imidacloprid is not amenable to the conditions of gas chromatography, a trimethylsilyl derivative was created and characterized. Proposed mechanisms for the creation of this derivative and its mass spectrum are described. The imidacloprid-trimethylsilyl (TMS) derivative was detected in all samples submitted.

Toxicological findings: A retrospective overview of medico-legal investigations in Parma (Italy).

The aim of this study was to collect all available data from 2009 to 2016 focusing on the epidemiological, clinical and pharmacological issues only related to acute intoxication fatalities in the Unit of Legal Medicine of the Department of Medicine and Surgery at the University of Parma. All death certificates and autopsy reports were retrieved from the archives and evaluated to identify cases in which only acute intoxication from xenobiotics could be defined as the cause of death, however statistical and descriptive analyses were applied to all the data. A more comprehensive analysis on all causes of death showed that out of 1005 total cases the most common is haemorrhagic shock/traumatic shock (36.5%), followed by cardiogenic shock with 27.4%; asphyxia ranks as the third cause of death (11.8%); concerning encephalic injuries, our data show 10.9% of cases, while acute intoxication by xenobiotics accounts for 5.7%. Data show that the majority of subjects are poly-abuser (75.4%); people not enrolled within a preventive treatment (59.4%) were more likely to commit suicide (28.1%), whereas only 6.2% in the sub-population in treatment (40.6%) committed suicide: therefore, data strongly suggest the evidence that joining a preventive programme can decrease the probability of extreme action. Access to a full case history may indeed save considerable time and expense in carrying out tests, but also valuable targeted samplings. The investigating officer should, therefore, submit as much information as possible about the case, as this may influence the type and extent of analysis undertaken, as well as the interpretation of analytical results.

Intoxicação crônica por Pteridium arachnoideum em bovinos no nordeste do estado do Rio Grande do Sul, Brasil / Chronic poisoning by bracken fern (Pteridium arachnoideum) in cattle in the northeast region of the state of Rio Grande do Sul, Brazil

Pteridium spp., popularmente conhecida como samambaia, comumente encontrada em solos ácidos, arenosos e de baixa fertilidade. A intoxicação ocorre quando os animais passam por privação alimentar ou ingestão acidental. O objetivo deste estudo é relatar a ocorrência de dois casos de intoxicação crônica por samambaia em bovinos na região nordeste do estado do Rio Grande do Sul, Brasil. Ambos os casos cursaram com sinais clínicos de disfagia, halitose, salivação e presença de tumores na orofaringe. A baixa oferta e qualidade de forragem, superlotação das áreas de pasto, manejo inadequado das pastagens, a presença de Pteridium arachnoideum, os sinais clínicos em conjunto com os achados de necropsia e o exame histopatológico confirmaram o diagnóstico de intoxicação crônica.

Pteridium spp., commonly known as fern, is commonly found in acidic, sandy and low fertility soils. Poisoning occurs when animals go through food deprivation or accidental ingestion. The objective of this study is to report the occurrence of two cases of chronic intoxication in cattle in the northeast region of the state of Rio Grande do Sul, Brazil. Both cases had clinical signs of dysphagia, halitosis, salivation and the presence of tumors in the oropharynx. Low supply and quality of forage, overcrowding of pasture areas, inadequate pasture management, presence of Pteridium arachnoideum, clinical signs, necropsy and histopathological of lesions confirmed the diagnosis of chronic intoxication.

[Xuebijing improves clinical prognosis and reduces mortality in patients with acute paraquat poisoning: a Meta-analysis included 1 429 patients].

OBJECTIVE: To explore the therapeutic effect of Xuebijing on patients with acute paraquat poisoning (APP) by using systematic evaluation method. METHODS: PubMed, Cochrane Library, Embase, Wanfang database, China National Knowledge Infrastructure (CNKI), VIP database (VIP) and China Biology Medicine (CBM) were searched using the computers to find the literatures published about the Xuebijing injection for the treatment of APP. Randomized controlled trials (RCT) were retrieved from the establishment of the database to August 2019. Patients in experimental group were treated with Xuebijing injection combined with conventional treatment, while the patients in control group were only given conventional treatment. The patients' outcome included the 14-day mortality, arterial oxygen saturation (SaO2) and incidence of pulmonary fibrosis. In addition, the 6-month survival rate, alanine aminotransferase (ALT), serum creatinine (SCr), C-reactive protein (CRP), tumor necrosis factor-α (TNF-α), malondialdehyde (MDA) and superoxide dismutase (SOD) between the two groups were compared. The literature data were extracted by two researchers independently, and the quality of the literatures was evaluated according to the Cochrane 5.1 handbook. The Meta-analysis was performed by using RevMan 5.3 software. The results stability of Meta-analysis was tested by sensitivity analysis. The publication bias was analyzed through drawing of funnel diagram. RESULTS: Twenty-seven RCT studies in total were enrolled, of which 26 were in Chinese and 1 was in English. A total of 1 429 patients were enrolled, among whom 726 were in experimental group and another 703 were in control group. Meta-analysis showed that compared with the control group, the 14-day mortality [relative risk (RR) = 0.62, 95% confidence interval (95%CI) was 0.54 to 0.72, P < 0.000 01] and incidence of pulmonary fibrosis (RR = 0.67, 95%CI was 0.53 to 0.85, P = 0.000 9) of patients in the experimental group were significantly lowered, while SaO2 at 7 days and 14 days were significantly increased [7 days: mean difference (MD) = 16.86, 95%CI was 9.89 to 23.83, P < 0.000 01; 14 days: MD = 16.51, 95%CI was 10.22 to 22.80, P < 0.000 01]. Compared with the control group, the survival rate within 6 months (RR = 1.55, 95%CI was 1.41 to 1.71, P < 0.000 01) and SOD (MD = 13.88, 95%CI was 7.43 to 20.33, P < 0.000 1) of patients in the experimental group were significantly increased, ALT at 14 days (MD = -78.35, 95%CI was -127.35 to -29.34, P = 0.000 5), SCr at 7 days and 14 days (7 days: MD = -135.13, 95%CI was -219.09 to -51.17, P = 0.002; 14 days: MD = -206.05, 95%CI = -290.13 to -121.96, P < 0.000 01), CRP (MD = -11.55, 95%CI was -17.77 to -5.33, P = 0.000 3), TNF-α (MD = -9.27, 95%CI was -15.48 to -3.96, P = 0.000 9) and MDA (MD = -1.27, 95%CI was -1.57 to -0.96, P < 0.000 01) were significantly lowered. The overall effect value of the parameters with high heterogeneity was not significantly changed after further Meta-analysis excluding any one of the studies, suggesting that the result was relatively stable. Funnel chart analysis was used to analyze the parameters from more than 10 articles enrolled, and it showed that there was publication bias. CONCLUSIONS: Xuebijing injection can reduce the mortality of patients with APP, which may because that it can improve liver and kidney function, reduce inflammation and oxidative stress damage, inhibit pulmonary fibrosis and increase oxygenation level.