Abstract To report a case of spontaneous vaginal evisceration in a patient with a surgical history of vaginal hysterectomy, and to review the literature on the main risk factors associated with the presentation of this event. We present the case of a 74-year-old multiparous patient with 12 vaginal deliveries with a gynecological history of vaginal hysterectomy in 2012, in 2014 a sacrospinocolpopexy with placement of transobturator tape plus anterior colporrhaphy, in 2018 she presented with intestinal loops protruding with signs of ischemia through a defect in the vaginal vault, resection of the small intestine and end-to-end anastomosis were performed, with subsequent closure of the defect through the abdomen. A search was made in the PubMed, Scielo, Google Scholar and Science Direct databases for articles published in English and Spanish, from the last 22 years. 16 titles that met the selection criteria were identified; the results of the review show common risk factors. Vaginal evisceration due to dehiscence of the vaginal vault is a rare pathology, the minimally invasive approach, which has increased in recent years, has led to an increase in incidence, with laparoscopic hysterectomy being of greater risk.

Resumen Reportar un caso de evisceración vaginal espontánea en paciente con antecedentes quirúrgicos de histerectomía vaginal y hacer una revisión de la literatura sobre los principales factores de riesgo asociados a la presentación de este evento. Se presenta el caso de una paciente de 74 años multípara de 12 partos vaginales con antecedente ginecológico de histerectomía vaginal en 2012, en el año 2014 una sacroespinocolpopexia con colocación de cinta transobturadora más colporrafia anterior, en 2018 presenta cuadro con asas intestinales protruyendo con signos de isquemia a través de defecto en cúpula vaginal, se realiza resección de intestino delgado y anastomosis termino-terminal, con posterior cierre de defecto por vía abdominal. Se realizó una búsqueda en las bases de datos PubMed, Scielo, Google Scholar y Science Direct para artículos publicados en inglés y español, de los últimos 22 años. Se identificaron 16 títulos que cumplieron con los criterios de selección, los resultados de la revisión muestran factores de riesgo comunes. La evisceración vaginal por dehiscencia de la cúpula vaginal es una patología poco prevalente, el abordaje mínimamente invasivo, que ha aumentado en los últimos años, ha conllevado un aumento de la incidencia, siendo la histerectomía por laparoscopia el de mayor riesgo.

O abscesso hepático é a complicação mais freqüente da amebíase intestinal: o seu diagnótico sugere-se pelo quadro clínico, mas é confirmado pelos estudos paraclínicos. Para confirmar o diagnóstico precisa-se identificar a E. histolytica, o que é apenas possível em muito poucos casos. As provas sorolôgicas melhoram notadamente o diagnóstico das complicações severas da amebíase. Em nosso estudo comparamos o teste de ELISA e a Contraimunoeletroforese (CIE). Ambas as técnicas foram utilizadas para detectar anticorpos contra ameba em 50 pacientes sem amebíase, 30 pacientes com abscesso hepático e 30 com amebíase intestinal. Todos os soros dos pacientes sem amebíase foram negativos por ambas as técnicas. Quando analisamos os soros dos pacientes com amebíase intestinal, encontrou-se que 10% destes, foram positivos para ELISA, enquanto que nenhum o foi para CIE. Nos soros dos pacientes com abscesso hepático, encontrou-se uma positividade de 90% para ELISA e 66.6% para CIE. Estes resultados mostram que o teste de ELISA foi de maior sensibilidade (100%i de sensibilidade) no diagnóstico do abscesso hepático amebiano, quando comparado com a Contraimunoeletroforese (66.6%).

The liver abscess is the most frequent extraintestinal complication of intestinal amoebiasis: its diagnosis is suggested by the clinical picture but it must be confirmed by paraclinic tests. Themost stringent diagnosis requires identification of E. histolytica. But this is possible only in a few cases. Serological tests greatly improve the diagnosis of this severe complication of amoebiasis. We compared the Enzyme Linfed Immunosorbent Assay and the Counterimmunoeletrophoresis techniques. Both techniques were used to detect amoebic antibodies in 50 control patients, 30 patients with liver abscess and 30 patients with intestinal amoebiasis. All the sera from control patients gave negative results iin both techniques. When analysing the sera from patients with intestinal amoebiasis, 10% of them were positive by ELISA but non by CIE. The sera of patients with liver abscess, we found that 90% were positive by the ELISA method and 66.6% by the CIE technique. In patients with amoebic liver abscess, the results showed that the ELISA was more sensitive than the CIE, as it presented a higher sensitivity (100%) than that of the CIE technique (66%).

An ELISA test for the serological diagnosisof amoebic liver abscess (ALA) was standardized and evaluated in sera from three groups of patients: (1) three patients with diagnosis confirmed by isolation of the parasite,(2) thirty seven patients with diagnosis established by clinical findings and ultrasound studies and (3) seven patients whose diagnosis were established by clinical findings and a positive double immunodifusion test. Ninety one serum samples from healthy subjects and 22 from patients with other liver or parasitic diseases were also included in the study. the optimum concentration of Entamoeba histolytica antigen was 1.25 µg/ml and optimum dilutions of serum and anti-human IgG-alkaline phosphatase conjugate were 1:400 and 1:4000 respectively. The cut-off point of the ELISA test in this study was an absorbance value of 0.34. The test parameters were: sensitivity = 95.7 per cent, specificty = 100 per cent, positive predictive value = 100 per cent and negative predictive value = 98.2 per cent.The ELISA test was found to be of great use as a diagnostic tool for the establishment of amoebic etiology in patients with clinical supposition of ALA. The test could also be used for seroepidemiological surveys of the prevalence of invasive amoebiasis in a given population, since it allows the processing of a greater number of samples at a lower cost tahn other serological tests.