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Background: The DynamX Novolimus-Eluting Coronary Bioadaptor System (DynamX® Bioadaptor) has uncaging elements that disengage after the resorption of the polymer coating, aiming to restore vessel function in the treated segment and to avoid long-term adverse outcomes associated with the permanent caging of the coronary artery seen with conventional stenting. Methods: This prospective, multicenter, single-arm first-in-human study enrolled 50 patients in Belgium and Italy who were treated with the DynamX Bioadaptor. Eligible patients had de novo lesions in coronary arteries measuring between 2.5 and 3.5 mm in diameter and ≤24 mm in length. Clinical follow-up was performed up to 36 months. This analysis includes the intention-to-treat population and is based on data available. The preclinical studies include optical coherence tomography (OCT) analyses of 5 DynamX Bioadaptors implanted in 3 mini Yucatan pigs (at 3, 12 and 24 months), and assessment of smooth muscle cell gene expression profile in 8 pigs of which each was implanted with the DynamX Bioadaptor and the Xience drug-eluting stent. To assess the gene expression profile by quantitative real-time polymerase chain reaction, animals were sacrificed at 3, 6, 9 and 12 months. Results: Target lesion failure at 36 months was 8.7% (4/46), consisting of one clinically-driven target lesion revascularization and 3 cardiac deaths (all site-reported to be unrelated to the device or procedure). There were no additional target vessel revascularization and no definite or probable scaffold thrombosis. Preclinical data confirmed late lumen enlargement (from 7.02 ± 1.31 mm2 at baseline to 8.46 ± 1.31 mm2 at 24 months) and identified an increased expression of contractile genes around 9 months compared to a conventional drug-eluting stent. Conclusions: The DynamX Bioadaptor demonstrated very good 36-month clinical outcomes, highlighted by the absence of target-vessel myocardial infarction and definite or probable device thrombosis, and only one target lesion revascularization up to 36 months. These data are supported by preclinical studies that showed late lumen enlargement by OCT and an increased expression of contractile genes around 9 months compared to conventional drug-eluting stents, indicating faster vessel healing. Larger clinical studies are necessary to compare outcomes against contemporary drug-eluting stents. Clinical Trial Registration: https://clinicaltrials.gov/: NCT03429894.

Abstract Background Assessment of the case‐fatality rate (CFR) of major bleeding on dual antiplatelet therapy (DAPT) may improve balancing risks and benefits of different durations of DAPT following percutaneous coronary intervention (PCI). Objectives To determine the CFR of major bleeding in patients on DAPT after PCI and to compare rates among different durations of DAPT. Methods Medline, Embase, and CENTRAL were searched from inception to August 2021 for randomized trials that reported fatal bleeding among patients who were randomized to ≥1 month of DAPT following PCI. Summary estimates for CFRs of major bleeding were calculated using the random‐effects inverse‐variance method. Statistical heterogeneity was evaluated using the I2 statistic. Results Of 2777 citations obtained by the search, 15 (48%) of 31 potentially eligible studies were excluded because fatal bleeding was not reported, leaving 16 studies that were included in the analysis. Overall, there were 823 major bleeding events including 91 fatal events in 48,884 patients who were assigned to receive DAPT during study follow‐up. The CFR of major bleeding was 10.8% (95% confidence interval [CI], 7.1–16.2; I2 = 50%) in the entire study population, and 13.8% (95% CI, 6.5–27.1; I2 = 28%), 11.2% (95% CI, 6.7–18.0; I2 = 0%), and 5.8% (95% CI, 3.0–11.1; I2 = 0%) in those on short‐term (≤6 months; n = 16,553), standard‐term (12 months; n = 19,453), and long‐term DAPT (>12 months; n = 10,238), respectively. Conclusion Fatal bleeding is not reported in many studies evaluating DAPT after PCI. The CFR of major bleeding on DAPT is substantial and may be higher in the first 12 months of DAPT than during long‐term DAPT.

The main objective of this work was to assess Eucalyptus globulus lignin as an adsorbent and compare the results with kraft lignin, which has previously been demonstrated to be an effective adsorbent. Eucalypt lignin was extracted (by the dioxane technique), characterised, and its adsorption properties for Cr(VI) ions were evaluated. The monomeric composition of both types of lignin indicated a high content of guaiacyl (G) and syringyl (S) units but low content of p-hydroxyphenyl (H), with an H:G:S ratio of 1:50:146 (eucalypt lignin) and 1:16:26 (kraft lignin), as determined by Py-GC/MS. According to elemental analysis, sulphur (2%) and sodium (1%) were found in kraft lignin, but not in eucalypt lignin. The adsorption capacity of the eucalypt lignin was notably higher than the kraft lignin during the first 8 h, but practically all the ions had been absorbed by both the eucalypt and kraft lignin after 24 h (93.4% and 95%, respectively). Cr(VI) adsorption onto both lignins fitted well using the Langmuir adsorption isotherm model, with capacities of 256.4 and 303.0 mg/g, respectively, for eucalypt and kraft. The study’s overall results demonstrate the great potential of eucalypt lignin as a biosorbent for Cr(VI) removal from aqueous solutions.

ABSTRACT: This study described five cases of squamous cell carcinoma (SCC) in the pinnae, eyelids, and eyes of Friesian Milchschaf sheep from two flocks raised under extensive conditions in Uruguay. The prevalence values for both flocks were 2.12% and 2.53%, respectively. Macroscopically, single or multiple, nodular, verrucous, or plaque-like neoplasms, with occasional ulceration and bleeding, were observed in the affected areas. Histologically, well- and moderately-differentiated SCCs were diagnosed in three and two cases, respectively. The Milchschaf breed is native of Germany, and its individuals present white non-pigmented skin with the face and legs clear of fleece, thus adapted to areas with lower solar radiation. Additionally, in the German breeding systems, animals remain indoors for long periods. The increased exposure time to higher levels of solar radiation of the Uruguayan extensive production systems may be a predisposing factor for the development of SCC in this sheep breed. In Uruguay, there is more solar radiation and the production systems provide less protection against sunlight compared with the German production system. The high frequency of SCC should be considered prior to introducing European breeds with non-pigmented skin in Uruguay and other countries of the region.

ABSTRACT: Hypomagnesemia is a major cause of death in grazing beef cows in countries of the Southern Hemisphere such as Argentina, Australia and New Zealand. Here we review the literature on hypomagnesemia in beef cattle and describe an outbreak in Uruguay. The disease occurred in late autumn, affecting 6 to 11-year-old Aberdeen Angus and Hereford x Aberdeen Angus lactating multiparous cows in good body condition, grazing on natural grasslands that had been improved by fertilization and sowing of seeds of ryegrass and oat. Approximately 40 out of 225 cows were affected and 24 (10.7%) died. A presumptive diagnosis of hypomagnesemia was established based on sudden death, acute neuromuscular clinical signs, epidemiological data, and the response to Mg administration. The diagnosis was confirmed by detecting low Mg concentrations in serum (0.47-0.57mmol/L), vitreous humor (0.47-0.80mmol/L), aqueous humor (0.66mmol/L) and cerebrospinal fluid (0.59mmol/L). The largest component of the diet corresponding to fast-growing and exuberant forages of ryegrass and oat had high concentrations of K (3.48%), N (4.38%) and P (0.94%), suggesting secondary hypomagnesemia. In addition, the K/(Ca+Mg) ratio was 2.38 in forages of ryegrass and oat (reference value: 2.2), and 0.15 in the soil (reference value: 0.09), which represent risk factors for hypomagnesemia. In conclusion, hypomagnesemia is an important cause of mortality in beef cattle grazing improved natural grasslands in Uruguay and it can be easily prevented by correct seasonal Mg supplementation.

Resumo Este artigo investiga os fatores referentes ao desempenho da função de compras da Receita Federal do Brasil (RFB), sob a perspectiva de dimensões de sua estrutura organizacional. Para tanto, a estratégia metodológica consistiu no levantamento de dados da RFB. Por meio de técnicas de sumarização e regressão, identificaram-se variáveis associadas à centralização, à formalização e à especialização da estrutura de compras, bem como suas relações com o desempenho da função na instituição. Os resultados indicaram relações significativas e positivas entre centralização e medidas de desempenho relativas ao tempo. Em contraste, a especialização ocupacional, em níveis intermediários, se associou de forma negativa com a competição, enquanto a experiência acumulada na área de compras se associou positivamente com os prazos de licitação. A formalização, por sua vez, apresentou associações que indicam um trade-off entre recursos financeiros e tempo. Consectuvamente, a pesquisa contribui para o campo da administração pública ao investigar a estrutura e o desempenho em compras numa instituição brasileira com atuação nacional, perscrutando hiatos identificados em artigos nacionais e internacionais, como os relativos ao país, à abrangência e à diversidade das compras analisadas, interpretando aspectos causais dessas associações.

Resumo Fundamento Dados robustos sobre a curva de aprendizagem (LC) da substituição da válvula aórtica transcateter (TAVR) são escassos nos países em desenvolvimento. Objetivo Avaliar a LC da TAVR no Brasil ao longo do tempo. Métodos Analisamos dados do registro brasileiro de TAVR de 2008 a 2023. Pacientes de cada centro foram numerados cronologicamente em número sequencial de caso (NSC). A LC foi realizada usando um spline cúbico restrito ajustado para o EuroSCORE-II e o uso de próteses de nova geração. Ainda, os desfechos hospitalares foram comparados entre grupos definidos de acordo com o nível de experiência, com base no NSC: 1º ao 40º caso (experiência inicial), 41º ao 80º caso (experiência básica), 81º ao 120º caso (experiência intermediária) e 121º caso em diante (experiência alta). Análises adicionais foram conduzidas de acordo com o número de casos tratados antes de 2014 (>40 e ≤40 procedimentos). O nível de significância adotado foi p

O presente trabalho tem como objetivo explorar a aplicação da Lei Geral de Proteção de Dados (LGPD) nos cartórios de protesto, com ênfase na importância da transparência e proteção dos dados pessoais no contexto dessas instituições. Para alcançar esse propósito, serão discutidos diversos aspectos relacionados à coleta, tratamento, compartilhamento e direitos dos titulares de dados no ambiente dos cartórios de protesto. Foi realizada uma pesquisa exploratória e descritiva, trazendo a compreensão da Lei Geral de Proteção de Dados e a compreensão das serventias extrajudiciais. Por fim, constatou-se como se dá a aplicação da LGPD nos casos de Cartório de Protesto.

This study aimed to develop a low-fructose (

Introdução: O aumento da adiposidade abdominal provoca alterações do centro de gravidade, podendo levar a déficits de equilíbrio postural e da capacidade funcional durante a realização de tarefas cotidianas. A ativação dos músculos lombo-pélvicos, por meio do fortalecimento e conscientização postural, pode reduzir a sobrecarga mecânica aplicada sobre as estruturas passivas da coluna vertebral, melhorando a estabilidade do tronco e, consequentemente, o equilíbrio e a funcionalidade. Objetivo: Investigar os efeitos de três diferentes intervenções sobre a estabilidade lombo-pélvica, equilíbrio dinâmico, funcionalidade e mobilidade de tornozelos em mulheres adultas com obesidade. Materiais e métodos: A amostra foi composta por 60 mulheres obesas com idade de 30 a 50 anos e com IMC entre 30 e 39,9 kg/m2. As voluntárias foram randomizadas em três grupos: Grupo Exercício Físico, Grupo Interdisciplinar e Grupo Educação em Saúde. As voluntárias foram avaliadas nos momentos Basal, após 16 e 32 semanas, quanto à capacidade funcional, equilíbrio dinâmico e mobilidade dos tornozelos, IMC, perímetro de pescoço e cintura. Resultados: Houve redução da massa corporal e perímetro da cintura apenas no grupo interdisciplinar. Observou-se que a terapia interdisciplinar foi mais efetiva, quando comparada com o grupo Exercício ou com o grupo Educação em Saúde, para controle/prevenção de disfunções e alterações biomecânicas relacionadas ativação do músculo transverso do abdome, equilíbrio dinâmico, funcionalidade e mobilidade de tornozelos. Conclusão: Portanto, estratégias de intervenção interdisciplinares/interprofissionais devem ser estimuladas, visando a melhora de aspectos funcionais, em mulheres com obesidade.

Background/Objectives: The direct bridge to urgent heart transplant (HT) with venoarterial extracorporeal membrane oxygenation (VA-ECMO) support has been associated with high morbidity and mortality. The objective of this study is to analyze the morbidity and mortality of patients transplanted with VA-ECMO and compare the presumed differences between various eras over a 17-year timeline. Methods: This is a prospective, observational study on consecutive patients stabilized with VA-ECMO and transplanted with VA-ECMO from July 2007 to December 2023 at a reference center (98 patients). Objective variables were mortality and morbidity from renal failure, venous thromboembolic disease (VTD), primary graft dysfunction (PGD), the need for tracheostomy, severe myopathy, reoperation, post-transplant ECMO, vascular complications, and sepsis/infection. Results: The percentage of patients who reached transplantation without the need for mechanical ventilation has increased over the periods studied. No significant differences were found between the study periods in 30-day mortality (p = 0.822), hospital discharge (p = 0.972), one-year mortality (p = 0.706), or five-year mortality (p = 0.797). Survival rates in these periods were 84%, 75%, 64%, and 61%, respectively. Comorbidities were very frequent, with an average of 3.33 comorbidities per patient. The most frequent were vascular complications (58%), the need for post-transplant ECMO (57%), and myopathy (55%). The development of myopathy and the need for post-transplant ECMO were higher in recent periods (p = 0.004 and p = 0.0001, respectively). Conclusions: VA-ECMO support as a bridge to HT allows hospital discharge for 3 out of 4 transplanted patients. This survival rate has not changed over the years. The comorbidities associated with this device are frequent and significant.

The effect of both potassium and organic fertilisation on grape yield and must composition originating from wine grapevines cultivated in the São Francisco river basin, in the semi-arid region of Northeastern Brazil, is not well known. Since soils from that region usually have low organic matter content, we hypothesise that soil application of organic fertiliser and potassium application through drip irrigation enhances the availability of this nutrient in the soil, and it influences grape yield and quality. Hence, five doses of potassium (0, 20, 40, 80 and 160 kg ha-1) applied through a drip irrigation system and two doses of goat manure as organic fertiliser applied into the soil (0 and 7.5 m3 ha-1) after pruning were evaluated concerning yield and berry quality of grapevine ‘Syrah’ over four growing seasons (April 2013 to July 2015) in Petrolina, state of Pernambuco, Brazil. The experimental design was randomised blocks with 5 replications. We evaluated yield (t ha-1), weight of 100 berries (g), must volume (mL), total soluble solids (°Brix), pH and total titratable acidity (‰), K, Mg and Ca contents and phenolic compounds (total polyphenols, anthocyanins and flavonoids). The increasing application of potassium at the different doses of organic fertiliser did not alter the crop yield, except in the second season. Nonetheless, K concentration in grape must was influenced in the four growing seasons, with higher values at fitted K2O doses by polynomial regression of 83.62 kg ha-1 (first season), 101.25 kg ha-1 (second season), 120.00 kg ha-1 (third season) and 77.99 kg ha-1 (0 m3 ha-1 organic fertiliser) and 96.07 kg ha-1 (7.5 m3 ha-1 organic fertiliser) in the fourth season. The addition of increasing doses of potassium interfered with the wine grape quality, which is an important factor to be considered in relation to its acidity. Organic fertilisation did not affect the most quality characteristics of the grapes.

The present article wishes to examine John Caputo’s notion of ‘hyperbolic justice’ considering his critique of Heideggerian philosophy. In Demythologizing Heidegger (1993), Caputo tries to deconstruct Martin Heidegger’s account of Dasein’s being as Sorge, as Being-towards-death in its existentiality, facticity and fallenness, not by rejecting that account but by showing that it is fissured by an absence, the absence of kardia (heart), of flesh, disablement, affliction. According to Caputo, Heidegger’s aesthetics of Being, and his concern to overcome the oblivion of Being, left him scandalously oblivious to the cry of the suffering other. Against Heidegger, Caputo opposes what he calls the “prophetic imagination” of Emmanuel Levinas, Jean-François Lyotard, and particularly Jacques Derrida. I will seek to examine the ways in which Caputo opposes to Heidegger Derrida’s ‘undeconstructibility of justice,’ whilst also resorting to Levinas’ ‘hyperbolic justice’.

Wastewater-based epidemiology (WBE) may be successfully used to comprehensively monitor and determine the scale and dynamics of some infections in the community. We monitored severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) RNA in raw wastewater samples from Porto Alegre, Southern Brazil. The samples were collected and analyzed every week between May 2020 to May 2021. Meanwhile, different social restrictions were applied according to the number of hospitalized patients in the region. Weekly samples were obtained from two wastewater treatment plants (WWTP), named Navegantes and Serraria. To determine the SARS-CoV-2 RNA titers in wastewater, we performed RT-qPCR analysis targeting the N gene (N1). The highest titer of SARS-CoV-2 RNA was observed between epidemiological weeks (EWs) 33–37 (August), 42–43 (October), 45–46 (November), 49–51 (December) in 2020, and 1–3 (January), 7–13 (February to March) in 2021, with viral loads ranging from 1 × 106–3 × 106 genomic copies/Liter. An increase in positive confirmed cases followed such high viral loads. Depending on the sampling method used, positive cases increased in 6–7 days and 15 days after the rise of viral RNA titers in wastewater, with composite sampling methods showing a lower time lag and a higher resolution on the analyses. The results showed a direct relation between strict social restrictions and the loads of detected RNA reduction in wastewater, corroborating the number of confirmed cases. Differences in viral loads between different sampling points and methods were observed, as composite samples showed more stable results during the analyzed period. Besides, viral loads obtained from samples collected at Serraria WWTP were consistently higher than the ones obtained at Navegantes WWTP, indicating differences in local dynamics of SARS-CoV-2 spread in different regions of Porto Alegre. In conclusion, wastewater sampling to monitor SARS-CoV-2 is a robust tool to evaluate the viral loads contributing to hospitalized patients’ data and confirmed cases. In addition, SARS-CoV-2 detection in sewage may inform and alert the government when there are asymptomatic or non-tested patients.

ABSTRACT: An outbreak of pulmonary edema and emphysema with acute and chronic cases is reported in a farm in Uruguay. In a herd of 40 Hereford steers, 20 died. The deaths began four days after a change of paddock, from an old pasture of Avena sativa to a lush growing pasture of the same grass. Acutely affected animals showed severe dyspnea, sialorrhea, cough, and subcutaneous edema, and died within 72 hours. Chronically affected steers showed dyspnea, respiratory noises, weight loss, and intolerance to exercise. The deaths began four days after the change of paddock. Ten days after the first death, the steers were withdrawn from the pasture, but continued dying throughout the following 40 days. Twenty animals died and six were necropsied. Grossly, the lungs were diffusely armed and glistening, with reddish and crepitant cut surface, and presented alveolar septae sharply distended by edema and emphysema. There was subpleural emphysema with air blebs distributed across the pleural surface. Presence of Dictyocaulus viviparus was observed in three steers. In some animals, the trachea was diffusely reddish with presence of pink foam; in some others, there was bloody liquid in the tracheal lumen. Histologic examination showed severe diffuse alveolar and interstitial emphysema, hyaline membranes adhered to the alveolar wall, thickening of the interlobular septae with proliferation of type II pneumocytes, and moderate-to-severe multifocal histiocytic, neutrophilic and eosinophilic infiltrate. In the trachea, there was submucosal hemorrhage and moderate multifocal eosinophilic and lymphocytic infiltrate. The steers with chronic signs presented similar lung lesions, but multifocal pulmonary fibrosis and cardiac dilatation were also observed. The diagnosis of acute bovine pulmonary emphysema and edema (ABPE) was based on the occurrence of the disease after introduction of the herd in a lush green pasture, on the characteristic gross and histologic lesions, and on the absence of other toxic or infectious agents causing similar lesions. Cattle raisers should be alert to the risks of occurrence of this disease after the introduction of the herds into paddocks with green and lush pastures.

Diversas espécies de Senecio estão amplamente difundidas nas pastagens de propriedades rurais do Sul do Brasil. Criadores dessa região relatam quedas nos índices reprodutivos dos rebanhos bovinos, muitas vezes de causas não determinadas. Várias plantas tóxicas são capazes de causar alterações reprodutivas diretas e indiretas em bovinos em diversos países, incluindo o Brasil, no entanto seus mecanismos patogenéticos ainda são pouco compreendidos. O objetivo desse trabalho é descrever lesões ovarianas em vacas com seneciose crônica proveniente de propriedades rurais da mesorregião Sudoeste Rio-grandense. Foram estudados 21 casos positivos de seneciose crônica diagnosticados entre 2011 e 2014. O estudo revelou que a seneciose crônica é a principal causa de morte de bovinos adultos na região. Quatro vacas prenhes apresentaram lesões hepáticas clássicas da intoxicação por Senecio spp. Essas vacas tiveram seus ovários avaliados histologicamente e células luteínicas grandes (CLG) desses ovários apresentavam megalocitose e pseudoinclusões nucleares. Algumas CLG apresentaram núcleos com até 23,69μm de diâmetro e o aumento no tamanho desses núcleos foi significativamente maior que os de vacas controle. Conclui-se que a intoxicação por Senecio spp. causa alterações ovarianas em vacas e é possível que a intoxicação cause perdas reprodutivas nos rebanhos bovinas da região.

RESUMO: O artigo tem como objetivo analisar o olhar de graduandos da área da saúde em relação à procrastinação acadêmica e a sua percepção sobre um programa de intervenção voltado para a autogestão da experiência universitária como uma estratégia de enfrentamento. Como fundamentação teórica, adotou-se a Teoria Social Cognitiva de Bandura, especialmente os construtos de autorregulação da aprendizagem e autoeficácia. A pesquisa envolveu 299 estudantes dos cursos de Educação Física, Fisioterapia, Nutrição, Terapia Ocupacional, Psicologia e Serviço Social, sendo realizada em três etapas: 1) aplicação do questionário Escala de Procrastinação Acadêmica e uma ficha de identificação dos participantes; 2) intervenção em pequenos grupos no formato de oficinas a partir de rodas de conversa; e 3) intervenção individualizada. Concluiu-se que a procrastinação é um comportamento presente no cotidiano dos estudantes e que se torna importante criar espaços de reflexão e aprendizado para a experimentação de estratégias que facilitem o seu enfrentamento. A intervenção em grupo demonstrou potência, pois possibilitou a escuta e a troca de experiências. Nela, os participantes puderam analisar a procrastinação para além dos aspectos individuais.

O trabalho verifica se as Parcerias Público-Privadas contribuem para o ajuste fiscal das contas públicas e, consequentemente, para o financiamento do crescimento econômico em Minas Gerais à luz da Teoria da Escolha Pública. O impacto das PPPs sobre o crescimento econômico depende de que a política econômica esteja voltada para fomentar o crescimento econômico e não para a realização de despesas de interesse de grupos de pressão. No entanto, o exame das contas públicas de MG descreve um aparente paradoxo: de um lado, há tendência de expansão do gasto público; de outro, a utilização de PPPs para contração da despesa pública. A aparente contradição é desfeita quando se observa que os déficits da previdência e os gastos com pessoal são crescentes e consomem eventuais ganhos fiscais decorrentes dos empreendimentos assumidos pela iniciativa privada por intermédio das PPPs. Em face do exposto, é possível admitir que o emprego das PPPs no Estado pode ter tido o objetivo de expansão do papel do Estado para a arregimentação de votos. A análise apoia-se no método dedutivo, procurando confrontar as ações governamentais com o comportamento previsto pela Teoria da Escolha Pública e avançar na compreensão e previsão do impacto das PPPs nas contas públicas

ABSTRACT: An outbreak of hypomagnesemia is reported in Holstein dairy cattle grazing lush oat (Avena sativa) pasture in Uruguay. Nine of 270 (3.3%) cows died in May-July (autumn-winter) 2017. These nine cows were from 2 to 9-years-old (1st-6th lactation), with 22 to 194 days of lactation and 15.8 to 31.4L of daily milk production. Two cows with acute sialorrhea, muscle spasms, lateral recumbency, weakness, opisthotonos, and coma, were euthanized and necropsied. No significant macroscopic or histological lesions were found. One untreated clinically-affected cow and eight out of 14 clinically healthy cows of the same group under similar management and production conditions had low serum levels of Mg (lower than 0.7mmol/L). Secondarily, both clinically affected cows and six out of 14 healthy cows had low serum Ca levels. The K/(Ca+Mg) ratio of two oat forages, corn silage, and ration was 5.10, 7.73, 2.45, and 0.85, respectively. A K/(Ca+Mg) ratio lower than 2.2 represents a risk for hypomagnesemia. The difference between the contribution-requirement of minerals in the diet was established and a daily deficiency of Mg (-0.36g/day), Na (-25.2g/day) and Ca (-9.27g/day) was found, while K (184.42g/day) and P (12.81g/day) were in excess. The diet was reformulated to correct the deficiencies and the disease was controlled by the daily administration of 80g of magnesium oxide, 80g of calcium carbonate and 30g sodium chloride per cow. It is concluded that hypomagnesemia is a cause of mortality in dairy cattle in Uruguay, and that the condition can be prevented by appropriate diet formulation.