RESUMO
Enterotoxigenic Escherichia coli (ETEC) is one of the major pathogens involved in neonatal calf diarrhoea (NCD) causing high economic losses in dairy farms. Antibiotic treatment is common in cases of systemic illness caused by NCD, but antimicrobial susceptibility tests (AST) are usually not performed. Thus, the aim of this study was to characterize the antimicrobial susceptibility of ETEC strains obtained from calves with diarrhoea between 2018-2020. Faecal samples (n = 420) were analyzed to detect the typical ETEC virulence factors F5 and STa. Positive samples were cultured to identify and isolate ETEC strains (n = 41) and ASTs were performed. Our results are alarming since ETEC strains resistant to three or more families of antimicrobials were detected in all isolates. Only four antibiotics (ceftiofur, cefoperazone, cefquinome and gentamicin) presented efficacy against more than 90% of the ETEC strains, while the other ten antibiotics were effective against less than 40% of the strains. In addition, a high number of strains were resistant to most first-line antimicrobials used in veterinary practice. For this reason, when ETEC infection is suspected, an AST must always be performed to select the most appropriate antimicrobial in each case and to avoid the emergence of new resistance mechanisms.
RESUMO
Introducción: El soiling es el escape inconsciente de pequeñas cantidades de materia fecal después de una evacuación normal. Se ha reportado una prevalencia del 7-23% en otros países y se ha observado una alta incidencia después de esfinterotomías y fistulotomías (35-45%). Material y Métodos: Se realizó un estudio observacional que incluyó 80 pacientes con patologías anales que acudieron a la consulta externa del Hospital General San Juan de Dios donde se aplicó un cuestionario de 8 ítems. Resultados: Se evaluaron 80 pacientes, la mayoría son hombres, de la quinta década. La enfermedad anal más frecuente son las hemorroides y el tratamiento quirúrgico más frecuente la hemorroidectomía. La incidencia de soiling definitivo (presencia de manchado a los 6 meses) es del 22.5%. Las variables asociadas fueron el género masculino, el tipo de enfermedad y procedimiento quirúrgico, el enrojecimiento, la picazón anal, el uso de protector en la región anal, la sensación de materia fecal y la limpieza en región anal. El ser hombre presenta un riesgo 6 veces mayor y el presentar enrojecimiento en la región anal aumenta el riesgo de 27 veces de presentar soiling definitivo. Conclusión: El soiling se presenta en un quinto de los pacientes que son operados de patologías anales en el Hospital General San Juan de Dios. La presencia de eritema, picazón anal, el uso de protector en la región anal, la sensación de materia fecal y la limpieza en región anal son variables estadísticamente asociadas al mismo. (AU)
Introduction: Soiling is the unconscious escape of small amounts of fecal matter after a normal bowel movement. A prevalence of 7-23% was reported in other countries and a high incidence was observed after sphincterotomies and fistulotomies (35-45%). Material and Methods: A observational study that included 80 patients with anal pathologies who attended the outpatient clinic of the San Juan de Dios General Hospital during 2018-2019, where an 8-item questionnaire was applied. Results: Eighty patients were evaluated, the majority are men, in their fifth decade. The most common anal disease is hemorrhoids, and the most common surgical treatment is hemorrhoidectomy. The incidence of definitive soiling (presence of spotting at 6 months) is 22.5%. The variables associated with definitive soiling were male gender, type of disease and surgical procedure, redness, anal itching, use of a protector in the anal region, the sensation of fecal matter, and cleanliness in the anal region. Being male presents a 6 times greater risk of definitive soiling and having redness in the anal region presents a 27 times greater risk of definitive soiling. Conclusion: Soiling occurs in a fifth of the patients operated for anal pathologies at the San Juan de Dios General Hospital. The presence of erythema, anal itching, the use of a protector in the anal region, the sensation of stool, and cleanliness in the anal region are statistically associated variables with soiling. (AU)