Evaluation of Transplacental Antibody Transfer in Pregnant Women Immunized with Different SARS-CoV-2 Homologous or Heterologous Schemes.

There is scarce information related to transplacental antibody transfer against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) with different homologous and heterologous vaccination schemes. This study aimed to correlate the magnitude of transplacental transfer anti-SARS-CoV-2 antibodies in different homologous and heterologous schemes. An observational cross-sectional study was developed to identify pregnant women vaccinated against SARS-CoV-2. They were questioned about their immunization status; blood samples from the mother, umbilical cord during labor, and the newborn 72 h after birth were taken to measure anti-S1 and anti-S2 specific IgG antibodies for SARS-CoV-2. We recruited 104 women with a median age of 29 (SD 1.17). We found antibodies in all newborns with vaccinated mothers. Homologous BNT162b2 mRNA regimen had the highest mean (SD) antibody titers (AU/mL) in maternal (994.93 (3.08), p = 0.039), umbilical cord (1316.43 (2.79), p = 0.016), and newborn (1192.02 (3.55), p = 0.020) blood. The generalized linear model showed a positive effect over antibodies with at least one dose in maternal (ß = -1.1, p = 0.002) and newborn (ß= -0.717, p = 0.044) blood, and with two doses (ß = -0.684, p = 0.026) in umbilical cord blood. In conclusion, antibodies were detected in all vaccinated women and their newborns. Transfer of antibodies was found from the first dose, and the levels increased with the number of vaccine doses. Vaccination should be encouraged in pregnant women with any available scheme.

Comparación del rendimiento diagnóstico de cuatro índices de riesgo de malignidad para cáncer de ovario / Comparison of the diagnostic performance of four malignancy risk indices for ovarian cancer

Resumen OBJETIVO: Evaluar el rendimiento diagnóstico de cuatro índices de riesgo de malignidad (IRM) en la predicción de riesgo de cáncer de ovario. MATERIALES Y MÉTODOS: Estudio comparativo y retrospectivo efectuado en pacientes mayores de 18 años con tumor anexial atendidas en el Hospital Christus Muguerza Conchita y Alta Especialidad del 2016 al 2021. Para evaluar el rendimiento diagnóstico de cada índice se utilizó la curva ROC y el índice de Youden para la obtención de sensibilidad y especificidad. RESULTADOS: Se incluyeron 330 pacientes con media de edad de 38 años. Para el IRM1 una S 73.9% y E de 85.3% con punto de corte en 126; IRM2 el mejor punto de corte se estableció en 210, con una S 72.5% y E de 89.3%; IRM3 el mejor punto de corte se estableció en 125, con una S 73.9% y E 85.8%; y para el IRM4 el punto de corte fue 436, con una S 68.1% y E 89.7%. CONCLUSIONES: El IRM es un método fácil, de bajo costo y accesible para la discriminación de pacientes con probable masa anexial maligna. En la población mexicana del noreste de México puede recomendarse la aplicación de cualquiera de los índices.

Abstract OBJECTIVE: Compare the diagnostic performance of four malignancy risk indices in predicting ovarian risk at Hospital Christus Muguerza Conchita and Alta Especialidad. MATERIALS AND METHODS: Retrospective study including clinical records of patients older than 18 years with adnexal tumor treated at the Christus Muguerza Conchita and Alta Especialidad Hospital from 2016 to 2021. The ROC curve was used to evaluate the diagnostic performance of each index, through the obtaining the best cut-off point with the highest sensitivity and specificity from the Youden index. RESULTS: A total of 330 patients were included for the adnexal tumor assessment approach. The mean age of the patients was 38.8 years. For IRM1 an S 81.2% and E of 69.3% with a cut-off point at 126; IRM2 the best cut-off point was established at 210, with an S 72.5% and E of 89.3%; IRM3 the best cut-off point was established at 125, with an S 73.9% and E 85.8%; and for IRM4 the cut-off point was 436, with an S 68.1% and E 89.7%. CONCLUSIONS: MRI is an easy, low-cost and accessible method for the discrimination of patients with probable malignant adnexal mass. The use of any of the indices can be recommended in the Mexican population of northeastern Mexico.

Correlación entre el índice de malignidad de Jacobs II y el reporte anatomopatológico en tumores de ovario / Correlation between risk malignancy index Jacobs II and anatomopathological result in ovary tumors

Resumen OBJETIVO: Determinar la correlación entre el cálculo del índice de riesgo de malignidad de Jacobs II y el reporte anatomopatológico de tumores de ovario. MATERIALES Y MÉTODOS: Estudio observacional, retrospectivo y prospectivo, analítico y transversal efectuado en pacientes con diagnóstico de tumoración ovárica con marcador tumoral de Ca 125 atendidas en el Hospital Christus Muguerza Conchita, Nuevo León, de 2016 a 2018. Se realizó el cálculo del índice de riesgo de malignidad de Jacobs II: IRM = U x M x Ca 125. Las pacientes se dividieron dos grupos según los reportes de histopatología (benignos y malignos). Las variables de tendencia central se compararon con t de Student ajustada a normalidad de dos colas (p < 0.05). Para describir las diferencias entre los grupos los muestreos categóricos se compararon con la prueba de Fisher de 2 colas o distribución de c2 (p < 0.05). Se estudió la muestra para observar factores de riesgo-beneficio (AUROC) y determinar el coeficiente de momios, riesgo relativo, sensibilidad, especificidad y creación del modelo de regresión logística de los indicadores de interés. RESULTADOS: Se seleccionaron 323 pacientes con diagnóstico de tumoración ovárica y se encontró que las pacientes con un índice de malignidad de Jacobs II mayor de 155.22 (AUROC 0.95) tuvieron mayor probabilidad de tener una lesión maligna por patología, con sensibilidad de 88% y especificidad de 91%. CONCLUSIÓN: Existe una correlación entre el índice de riesgo de malignidad de Jacobs II con el reporte anatomopatológico de tumores de ovario.

Abstract OBJECTIVE: To determine the correlation between the risk of malignancy index Jacobs II and anatomopathological result in ovarian tumors. MATERIALS AND METHODS: Observational, retrospective, prospective, analytical and transversal study of patients with a diagnosis of ovarian tumor with tumor marker of Ca 125 and the result of pathology admitted to the Christus Muguerza Conchita Hospital in Nuevo León during a 2-year period (2016-2018). Risk of malignancy index Jacobs II was calculated: IRM = U x M x Ca 125. Two groups were divided according to the results of histopathology (benign and malignant). For variables of central tendency, were compared with Student's t-test adjusted to two-tailed normality (P <0.05). For categorical sampling, compared with the 2-tailed Fisher's test to describe the differences between the groups or distribution c2 (P <0.05). The sample was studied to observe risk / benefit factors (AUROC) as well as determination of the odds ratio, relative risk, sensitivity, specificity and creation of the logistic regression model of the indicators of interest. RESULTS: It was found that patients with a Jacobs II malignancy index higher than 155.22 (AUROC 0.95) were more likely to have a malignant lesion due to pathology with 88% sensitivity and 91% specificity. CONCLUSION: There is a correlation between the risk index for malignancy of Jacobs II and the anatomopathological result in ovarian tumors.

[Volvulus in pregnancy: a case report]. / Vólvulo intestinal en paciente embarazada: reporte de un caso.

There are several etiologies of abdominal pain during pregnancy, including an extremely rare: the intestinal volvulus. Have been reported about 78 cases in the literature of intestinal volvulus complicating pregnancy, we reported this case occurred in our hospital and to assess the difficult diagnosis of intestinal volvulus in pregnancy.

[Comparison of the measurement line cervical and endometrial ultrasound techniques using two]. / Comparación de la medición cervical y de la línea endometrial mediante dos técnicas ultrasonográficas.

BACKGROUND: Cervical and endometrial measurement in the gynecological and obstetric patients is of vital importance. There is no consensus for the correct way in which should be made the measurement, more than anything is for an opinion of some experts. OBJECTIVE: To determine whether there are differences in measurement of endometrial or sagittal cross section of the uterus and cervix in the measurement of fractional linear fashion or along the cervical canal. MATERIAL AND METHODS: Using a transvaginal ultrasound, was measured in a transverse and longitudinal endometrial lining. And by fractional measuring along the cervical canal and a linear manner from the internal to the external. RESULTS: We studied a total of 63 patients. The mean endometrial transversal measurement in a cross was 7.1. mm (SD +/- 3.3) The mean endometrial longitudinally measured were: 7.9 mm (SD +/- 3.4). The mean cervical measurement was fractionally 3.3 cm (SD +/- 0.4) Mean cervical linear measurement was 3.9 cm (SD +/- 0.4). Using student's t test where the value of p in the endometrial measurement was 0.0871 and p value in cervical measurement was 0.009, the latter being statistically significant. CONCLUSIONS: With respect to the measurement of the endometrial lining, there is no significant difference do any of the two different techniques. However, measurement of the cervix, another significant difference (p = 0.009), so it should be further investigated which of these two techniques is the right way to establish more accurate diagnoses.