Causes of death in beef cattle in southern Brazil

2021 ◽  
pp. 104063872110079
Author(s):  
Franciéli A. Molossi ◽  
Bianca S. de Cecco ◽  
Camila B. Pohl ◽  
Rogério B. Borges ◽  
Luciana Sonne ◽  
...  

We determined the prevalence of diseases and pathogens associated with mortality in beef cattle in the State of Rio Grande do Sul, Brazil, based on pathology laboratory submissions. Postmortem examinations were conducted on 1,277 beef cattle that died between 2008 and 2018. Information regarding age, time of the year, breed, and regional location were analyzed statistically. Most cattle were from the surrounding region of Porto Alegre, and 78.7% of the analyzed cases had diagnostic value. The diagnostic category with most cases was infectious and/or parasitic diseases (60%), followed by toxic and toxicoinfectious (25%). Most cases occurred in the fall. Major disease conditions identified included hemoprotozoal infection (18.2%), rabies (8.2%), and plant intoxications by Senecio spp. (8.5%) and Pteridium arachnoideum (4.6%). Hemoprotozoal infection occurred at a higher frequency in young cattle, mainly in animals up to 1 y old. Intoxication by Senecio spp. was more frequent in cattle 2–3 y old.

2021 ◽  
Vol 41 ◽  
Author(s):  
Bianca S. Cecco ◽  
Franciéli A. Molossi ◽  
Luan C. Henker ◽  
Marina P. Lorenzett ◽  
Gabriel L.F. Correa ◽  
...  

ABSTRACT: The increase in the commercialization of sheep products requires an equivalent improvement in flock health and rapid disease identification. Data regarding the cause of death in sheep were reviewed from the database of the “Setor de Patologia Veterinária” from the “Universidade Federal do Rio Grande do Sul”, from January 2004 and December 2019. Epidemiological features, such as breed, sex, and age, in addition to the clinical and pathological features, were analyzed. During this period, tissues from 523 sheep were evaluated, in which a conclusive diagnosis was obtained in 457 (87%) of the cases. The majority of sheep were from the metropolitan mesoregion of Porto Alegre. The most common breed was Texel 171/523 (33%). From all the conclusive diagnoses, 158/457 (35%) corresponded to infectious non-parasitic diseases, 117/457 (26%) were caused by toxic etiology, 95/457 (21%) were infectious parasitic diseases, 42/457 (9%) were included in the nutritional and metabolic category, 38/457 (8%) were in the “others” category, and 7/457 (1.5%) were congenital defects. The age of sheep included in this study ranged from 1 day to 7 years. Among cases with conclusive diagnosis, the main cause of death was haemonchosis with 83/457 (18%) of cases, followed by pneumonia 29/457 (6%), Baccharis sp. poisoning 25/457 (5%), and bluetongue 22/457 (5%).


PEDIATRICS ◽  
1950 ◽  
Vol 5 (2) ◽  
pp. 184-192
Author(s):  
HERBERT C. MILLER

An analysis of the significant causes of death in 4117 consecutive births was made; there were 66 fetal deaths and 85 neonatal deaths. A significant cause of death was determined in 51 fetuses and 56 live-born infants. Eighty-five per cent of the live-born infants who weighed over 1000 gm. at birth and had postmortem examinations had causes of death which were considered to be significant. Almost half of the live-born premature infants with birth weights between 1000 and 2500 gm. were considered to have had more than one significant cause of death. The so-called significant causes of death among live-born infants differed from those determined for fetuses dying before birth. Among the former, pathologic conditions in the infants were determined four times more frequently than in those dying before birth and, in the latter, maternal complications of pregnancy and labor were diagnosed as significant causes of death five times more frequently than in infants dying in the neonatal period. Hyaline-like material in the lung was considered to be the most frequent significant cause of death in live-born premature infants; congenital malformation and anoxia resulting from complications of labor were the most frequently determined significant causes of death in live-born full term infants. No differences were found in the significant causes of death in premature and full term fetuses. Anoxia resulting from accidental and unexpected interruption of the blood flow in the placenta and umbilical cord and from dystocia was the most frequently determined significant cause of death in both groups. A plea has been made for the adoption by obstetricians, pathologists and pediatricians of a formal uniform plan of classifying the causes of fetal and neonatal death which would divest current efforts to determine the cause of death of as much vague terminology and arbitrary opinion as possible.


1997 ◽  
Vol 39 (4) ◽  
pp. 217-222 ◽  
Author(s):  
Aércio Sebastião BORGES ◽  
Marcelo Simão FERREIRA ◽  
Sérgio de Andrade NISHIOKA ◽  
Marco Túlio Alvarenga SILVESTRE ◽  
Arnaldo Moreira SILVA ◽  
...  

Acquired immunodeficiency syndrome (AIDS) is one of the main causes of death in adults worldwide. More commonly than in the general population, in patients with AIDS there is substantial disagreement between causes of death which are clinically suspected and those established by postmortem examination. The findings of 52 postmortem examinations were compared to the premortem (clinical) diagnoses, and there was 46% agreement between them. Fifty two percent of the patients had more than one postmortem diagnosis, and 48% had at least one AIDS-related disease not suspected clinically. Cytomegalovirus infection was the commonest (30.7%) autopsy finding, but not a single case had been suspected premortem. Bacterial infection, tuberculosis, and histoplasmosis were also common, sometimes not previously suspected, postmortem findings. This study shows that multiple infections occur simultaneously in AIDS patients, and that many among them are never suspected before the postmortem examination. These findings suggest that an aggressive investigation of infections and cancers should be done in patients with AIDS, particularly in those who do not respond to therapy of an already recognized condition


2020 ◽  
Vol 10 (4) ◽  
pp. 72-76
Author(s):  
Boris Kulbitsky ◽  
Dmitriy Sundukov ◽  
Maria Fedulova ◽  
Dmitriy Bogomolov ◽  
Olga Romanova ◽  
...  

The article presents results of a study on the correlation of histomorphometric parameters of the heart in case of death from alcoholic cardiomyopathy (ACM), ischemic heart disease (IHD) and mechanical injury (control group) by the method of correlation analysis. The previous studies show that normally with age, the myocardium of the sinoatrial node (SAN) is most worn out and fibrosed. In case of IHD the His bundles are most worn out and fibrosed. In case of ACM, histomorphological changes are uniform in all areas of the myocardium. This indicator can be used in practice when providing differential diagnosis of the above-described types of pathology and causes of death. In addition, the results of our study confirm that myocardial lipomatosis is more typical of ACM, which increases its diagnostic value.


2020 ◽  
Vol 17 ◽  
pp. 00098
Author(s):  
Maksim Zhukov ◽  
Yurij Alekhin ◽  
Ivan Kalyuzhny ◽  
Vasiliy Dorozhkin ◽  
Anatoliy Stekolnikov

The study has been carried out at two livestock complexes specializing in the production of beef to investigate the causes of non-productive retirement of animals. The structure of the causes of death or necessary slaughter of young cattle was determined by the results of pathological autopsy (n = 2816). Moreover, it was revealed that in 83.5 % of the animals, morphological changes in the respiratory organs prevailed, which in 40.2 % of the cases were thanatogenetically significant. The pathology of the digestive system was found in 29.6 % of animals, and in 14.9 % of cases they caused death. Pathology of the kidneys and urinary tract most often occurred at the age of 4–6 months and caused the retirement of 7.6–9.4 % of the animals. The role of cardiovascular pathology in the structure of the causes of retirement increases in young animals aged 8–11 months, while that of diseases of the joints and distal extremities rises at the final stage of their fattening. Clinical and expert evaluation of the activity of veterinary specialists (n = 12) showed that they correctly identified the underlying disease in 74 %, concomitant pathologies in 17.9 %, and complications in 5 % of diseased. Therefore, one of the problems of diagnosing diseases in young cattle during the period of growing and fattening is an incomplete diagnosis due to the low detection rate of concomitant pathologies and complications, some of which are of decisive thanatogenetic significance.


Author(s):  
Adelina MEZZARI

In order to evaluate the distribution of dermatophytes in Porto Alegre, the capital of the state of Rio Grande do Sul, Brazil, they were isolated from the skin, hairs and nails samples and retrospectively analyzed from June 1981 to June 1995, in two different institutions in the city of Porto Alegre: (i) the Serviço de Micologia do Instituto de Pesquisas Biológicas Jandyr Maya Faillace, da Secretaria de Saúde e Meio Ambiente do Rio Grande do Sul which attends the low income population (low and middle classes) and, (ii) Laboratório Weinmann, a clinical pathology laboratory which attends predominantly the higher income population (middle and upper classes), both which attend in the metropolitan area of Porto Alegre. The dermatophyte predominance of Trichophyton rubrum was confirmed (55.33%) followed by T. mentagrophytes (21.46%). The data obtained were compared with the existing prevalence data which were collected in the interior of the state over a period of 32 years (1960-1992). T. verrucosum, T. simii, Microsporum persicolor, T. schöenleinii, M. nanum and M. cookei were isolated in the interior and have not been found in the capital so far. On the other side, T. violaceum was, isolated in the capital and has not been found in the interior so far.


2021 ◽  
Vol 6 (2) ◽  

Background: Autopsy is a traditional method in pathology for the study of diseases or injuries, being key to elucidate the cause of death. However, the number of autopsies has been decreasing progressively. Design and Context: Retrospective cross-sectional study to analyze the presence of discrepancy between clinical and pathological diagnoses as to the cause of death according to the Goldman criteria, verify the epidemiological profile of the main causes of death, and tabulate the number of procedures conducted annually. Method: Analyzing clinical records and autopsy reports from the Department of Pathology and Legal Medicine of the Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA) from 1963 to 2012 and performing statistical analysis on the data collected. Results: The predominant age group was of dead fetuses (30.6% of all cases). The main cause of death was infection (68.4% of diagnoses). After a peak in the early 1980s, there was a progressive drop in the rates of postmortem examination. In the 1990s, the average number of autopsies fell by 58% in relation to the previous decade, and the last decade of the Century registered a decrease of 80% as compared to the average of the 1980s. According to the Goldman criteria, there was discrepancy between ante- and postmortem diagnoses as to the cause of death in 26.2% of the cases. Conclusion: The rates of discrepancy between clinical diagnoses and autopsy findings regarding the cause of death remain high, even though medicine has become more and more advanced in technology.


2019 ◽  
Vol 47 ◽  
Author(s):  
Marina Maurente Berón ◽  
Filipe Krasinski Cestari ◽  
João Pedro Cavasin ◽  
Luísa Favaretto ◽  
Enedi Zancheti ◽  
...  

Background: Ameloblastic fibro-odontoma is a benign tumor derived from odontogenic epithelium and mesenchymal tissue, which forms enamel and dentin. It is a rare neoplasm in all species. One of the most common sites for their occurrence is the anterior mandibules. The prevalence of this odontogenic tumor is higher in young animals and only few cases are described in cattle. The purpose of this article is describe the clinical, surgical and the histopathological characteristic of a fibro-odontoma case in a Jersey Cow. Case: A 3-year-old Jersey cow was presented with a progressively growing mass in the anterior mandible displacing the incisor teeth. The mass measured approximately 12 cm diameter and there was a focal area of myiasis. The owner reported weight loss and eating difficulties. The animal was treated with antibiotics for a few weeks but the conservative treatment failed, and the heifer underwent surgical removal of the lesion. The tumor was sent for histopathological evaluation at UFPR-Palotina Pathology laboratory. Microscopically, the excised mass was poorly delimited, and was composed of tumor cells of mesenchymal and epithelial origin which infiltrated and compressed surrounding tissues. Neoplastic cells were arranged in bundles which multifocally formed dental sacs (dental follicles) of various sizes. These dental sacs were formed by neoplastic ameloblasts, and were surrounded by abundant fibrous connective tissue. The central zone of the tumor consisted of a loose, vacuolated neoplastic stellate reticulum. Mitotic figures were rare, and there was moderate anisokaryosis. In some areas, neoplastic ameloblasts surrounded the stellate reticulum. The presence of a sparse, well-organized basophilic extracellular matrix produced presumably by the tumor cells and interpreted as dentin. These microscopic characteristics led to the diagnosis of an ameloblastic fibro-odontoma. The heifer made a full recovery after surgical removal of the mandibular mass.Discussion: Although rare in all mammalian species, ameloblastic fibro-odontoma is the most common odontogenic tumor in cattle. There are also reports of this neoplasm in humans, cats, horses, sheep, nonhuman primates and rats. Despite being benign these neoplasms may be infiltrative or expansile which make them difficult to be surgically removed. Similar to observed in this case the most majority of these tumors occurs in the anterior mandibules of young cattle of either sex. The ameloblastic fibro-odontoma is a variant of ameloblastic fibroma in which mineralized tissue is absent.  Ameloblastic fibro-odontoma is a tumor formed by odontogenic epithelial and mesenchymal tissues which form enamel or dentin (or both). The presence of enamel helps the pathologist to diagnose an ameloblastic fibro-odontoma by histopathology in the slides. Surgical excision of the neoplasm with wide margins should be performed in order to reduce the risk of local recurrence of this tumor, and when well executed they are curative. In this animal there was no recurrence of the neoplasm after a 16-month follow-up. Ameloblastic fibro-odontoma, other odontogenic neoplasms, inflammatory lesions due to infectious agents such as bacteria and fungi, and congenital lesions should be considered in the differential diagnosis of young cattle presented with localized swelling of the maxillae or oral cavity.


Author(s):  
Janete Vettorazzi ◽  
Edimárlei Gonsales Valério ◽  
Maria Alexandrina Zanatta ◽  
Mariana Hollmann Scheffler ◽  
Sergio Hofmeister de Almeida Martins Costa ◽  
...  

Abstract Objective To determine the profile of maternal deaths occurred in the period between 2000 and 2019 in the Hospital de Clínicas de Porto Alegre (HCPA, in the Portuguese acronym) and to compare it with maternal deaths between 1980 and 1999 in the same institution. Methods Retrospective study that analyzed 2,481 medical records of women between 10 and 49 years old who died between 2000 and 2018. The present study was approved by the Ethics Committee (CAAE 78021417600005327). Results After reviewing 2,481 medical records of women who died in reproductive age, 43 deaths had occurred during pregnancy or in the postpartum period. Of these, 28 were considered maternal deaths. The maternal mortality ratio was 37.6 per 100,000 live births. Regarding causes, 16 deaths (57.1%) were directly associated with pregnancy, 10 (35.1%) were indirectly associated, and 2 (7.1%) were unrelated. The main cause of death was hypertension during pregnancy (31.2%) followed by acute liver steatosis during pregnancy (25%). In the previous study, published in 2003 in the same institution4, the mortality rate was 129 per 100,000 live births, and most deaths were related to direct obstetric causes (62%). The main causes of death in this period were due to hypertensive complications (17.2%), followed by postcesarean infection (16%). Conclusion Compared with data before the decade of 2000, there was an important reduction in maternal deaths due to infectious causes.


2008 ◽  
Vol 188 (12) ◽  
pp. 699-702 ◽  
Author(s):  
Emily Tu ◽  
Stephen M Twigg ◽  
Johan Duflou ◽  
Christopher Semsarian

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