Características del abdomen agudo quirúrgico gineco-obstétrico en un hospital público de Paraguay (2015-2020)

Introducción: El abdomen agudo gineco-obstétrico es uno de los problemas más desafiantes en la práctica médica y en algunas situaciones pone en peligro la vida de las pacientes. Objetivo: Determinar las características del abdomen agudo quirúrgico gineco-obstétrico en el Hospital Regional de Ciudad del Este durante el periodo 2015 al 2020. Materiales y métodos: Estudio observacional, descriptivo, retrospectivo, con muestreo no probabilístico; que incluyó pacientes con cuadro de abdomen agudo quirúrgico que ingresaron al servicio de gineco-obstetricia durante el periodo comprendido desde 1 de octubre del año 2015 hasta 30 de setiembre del año 2020. Datos sociodemográficos, causas gineco-obstétricas, diagnósticos etiológicos, complicaciones, condiciones al egreso se tuvieron en cuenta. Los datos fueron analizados en el software Stata 12.0®. Resultados: Se estudiaron a 375 pacientes, 55% presentan edades comprendidas entre 20 a 35 años y procedente de zona urbana en un 84%. Se evidenciaron que el 51% fueron de causa obstétrica, el 40% ginecológico y el 9% de causas no gineco-obstétricas. El embarazo ectópico complicado fue del 46% de los casos. El 38% de las complicaciones presentaron sepsis y el 35% shock hipovolémico. Las complicaciones quirúrgicas en el puerperio se registraron que la endometritis/peritonitis fue del 47% y dehiscencia de histerorrafia/absceso de pared con 33%. El 7% de las pacientes fueron derivadas a unidad de cuidados intensivos. Conclusión: El abdomen agudo quirúrgico gineco-obstétrico es más frecuente en edades medias, predomina las causas obstétricas. De entre las etiologías, el embarazo ectópico es la más frecuente. Entre las causas obstétricas de las gestantes con fetos viables sigue siendo la apendicitis aguda. El cuadro séptico y el shock hipovolémico predominan entre las complicaciones. En el puerperio la endometritis y peritonitis. Y, por último, se registraron un porcentaje considerado de requerimiento de cuidados intensivos.

Introduction: The acute gynecological-obstetric abdomen is one of the most challenging problems in medical practice and in some situations it endangers the lives of patients. Objective: Determine the characteristics of the gynecological-obstetric surgical acute abdomen at the Ciudad del Este Regional Hospital during the period 2015 to 2020. Materials and methods: Observational, descriptive, retrospective study, with non-probabilistic sampling. All patients with acute surgical abdomen who were admitted to the gynecology-obstetrics service were studied during the period from October 1, 2015 to September 30, 2020. The data were analyzed in the Stata 12.0® software. Results: 375 patients were studied, of which 51% had obstetric causes, 40% had gynecological causes, and 9% had non-gynecological-obstetric causes. It was evident that 55% were between 20 and 35 years old, with 84% coming from urban areas. Complicated ectopic pregnancy was 46% of cases. 38% of the complications presented sepsis and 35% hypovolemic shock. Surgical complications in the puerperium were recorded: Endometritis/peritonitis was 47% and hysterography/wall abscess dehiscence was 33%. 7% of the patients were referred to the intensive care unit. Conclusion: Obstetric-gynecological surgical acute abdomen is more common in middle ages, obstetric causes predominate. Among the etiologies, ectopic pregnancy is the most common. Acute appendicitis continues to be among the obstetric causes of pregnant women with viable fetuses. Septic symptoms and hypovolemic shock predominate among the complications. In the puerperium, endometritis and peritonitis. And finally, a percentage considered to require intensive care was recorded.

Experience of Medicinal Insects for Gynaecological Diseases / 中医杂志

It is believed that all kinds of gynaecological diseases are mostly related to deficiency and stagnation of qi and blood. Medicinal insects are good at running and scurrying， with the effectiveness of activating blood circulation and dispelling blood stasis， moving qi and relieving pain， searching and dredging collaterals， attacking hardness and dissipating mass， and purging foetus and resolving mass， etc. Appropriate prescriptions can enhance the effectiveness of the formula in eliminating blood stasis and eliminating stagnation. In the treatment of menstrual disorders， chronic pelvic inflammatory disease， uterine cavity disease， incomplete miscarriage， ectopic pregnancy， and other gynaecological diseases， medicinal insects including Quanxie （Scorpio）， Wugong （Scolopendra）， Tubiechong （Eupolyphaga/Steleophaga）， Jiuxiangchong （Coridius chinenses）， Shuizhi （Hirudo）， Mangchong （Tabanus）， Dilong （Pheretima） and other insects for medicinal purposes could be used， and the self-prescribed empirical formulas such as Sanhuang Decoction （三黄汤）， Hongteng Decoction （红藤汤）， Penning Decoction （盆宁方）， Shapei Decoction （杀胚方）， and Gongwaiyun Decoction （宫外孕方） and so on， were all applied medicinal insects and showed effective in clinic.

The impact of the coronavirus disease 2019 pandemic on the clinical presentation of tubal ectopic pregnancies: a retrospective cohort study

SUMMARY OBJECTIVE: We aimed to assess the impact of the coronavirus disease 2019 pandemic on the clinical presentation of tubal ectopic pregnancies. METHODS: This retrospective cohort study was conducted at a tertiary center and included 76 cases of tubal ectopic pregnancies. The study period was divided into two groups: the pre-coronavirus disease group (January 2018 to February 2020, Group 1; n=47, 61.8%) and the coronavirus disease group (March 2020 to February 2022, Group 2; n=29, 38.2%). Subgroup analysis was also performed for tubal ruptured ectopic pregnancies as Group 1 (n=15, 62.5%) and Group 2 (n=9, 37.5%). RESULTS: No statistically significant differences were observed between the pre-coronavirus disease and coronavirus disease groups in terms of demographic characteristics. Although the serum beta-human chorionic gonadotropin level was found to be higher in Group 2, the difference was not statistically significant (p=0.7). The groups appeared to be similar in treatment management, duration of hospitalization, and blood transfusion needs (p=0.3, p=0.6, and p=0.5, respectively). Additionally, no significant difference was observed between the groups in the evaluation of ruptured ectopic pregnancies (p=0.5). In the subgroup analysis of tubal ruptured ectopic pregnancies, no significant difference was observed. CONCLUSION: To the best of our knowledge, there are few studies evaluating the effect of the pandemic on tubal ectopic pregnancies in the literature. Although we did not report statistically significant differences between groups in our study, given the potential prolonged duration of the pandemic, healthcare professionals should actively prompt their patients to seek necessary medical assistance.

Embarazo Ectópico Cornual: Reporte De Una Localización Inusual / Interstitial ectopic pregnancy: report of an unusual location

Resumen Se define a un embarazo ectópico cuando el blas tocisto en desarrollo se implanta fuera de la cavidad uterina. La localización más frecuente es en la trom pa, pero también puede ocurrir en el ovario, cérvix, cicatriz de cesárea, cuerno uterino (también mencio nado como intersticial en la literatura) o abdominal. Se estima que la incidencia de embarazo ectópico es aproximadamente el 2% de todos los embarazos, sien do la localización cornual solo el 2-4% de esos casos. El objetivo de este reporte es describir el caso de una paciente con sospecha de embarazo ectópico de loca lización incierta a quien se le realizó una laparoscopia exploradora por inicio de síntomas, evidenciando un embarazo ectópico cornual en el lecho de una salpin gectomía, producto de un embarazo ectópico tubario previo. Se realizó la cornuotomía con resección del mismo por laparoscopia y su evolución fue favorable con negativización de la subunidad beta. Este tipo de localización es rara y se asocia con grandes tasas de morbimortalidad materna. Representa un desafío diagnóstico y terapéutico para el ginecólogo que lo enfrenta.

Abstract Ectopic pregnancy occurs when a developing blastocyst implants at any site other than the uterine cavity. Ectopic pregnancy is most commonly found in the fallopian tube but may also occur in the cornua of the uterus (also found as interstitial in the literature), cervix, ovary, or abdominal cavity or in a cesarean scar. An estimated 2% of pregnan cies are ectopic, of which an interstitial pregnancy repre sents an extremely rare variant of ectopic pregnancy (EP), accounting for 2% to 4 % of all cases. The aim of this report is to describe the case of a patient with suspected ectopic pregnancy of uncertain location in which an exploratory laparoscopy was performed due to the onset of symptoms, discovering a cornual ectopic pregnancy in site of a past salpingectomy because of a tubal ectopic pregnancy. A cornuotomy by laparoscopy was performed to resect the cornual ectopic pregnancy. The patient had an unevent ful postoperative course, with negativization of human chorionic gonadotropin levels. This type of location is rare and is associated with high rates of maternal morbidity and mortality. It represents a diagnostic and therapeutic challenge for the gynecologist who faces it.

Uso de mifepristona en embarazo ectópico intersticial: un reporte de caso / Use of mifepristone in an interstitial ectopic pregnancy: a case report

Introducción: El embarazo ectópico intersticial es una forma de presentación poco frecuente, con una incidencia del 2-4% de los embarazos ectópicos; sin embargo, a pesar de su baja incidencia la mortalidad es cinco veces mayor, impactando en las cifras de mortalidad materna y representando en torno al 10-15% de los casos. Objetivo: Presentar un caso de embarazo ectópico intersticial, cuya ocurrencia es poco frecuente, así como el abordaje satisfactorio del manejo médico con mifepristona y metotrexato. Caso clínico: Mujer de 28 años con antecedente de resección tubárica por quiste paraovárico derecho, quien acudió a urgencias por hallazgo en ecografía obstétrica de sospecha de embarazo intersticial izquierdo y se le administró manejo farmacológico con dosis de metotrexato y mifepristona, con éxito. Conclusiones: El manejo médico con metotrexato y mifepristona para el embarazo ectópico intersticial parece ser una elección eficaz en los casos con estabilidad hemodinámica y deseo de conservación de la fertilidad.

Background: Interstitial ectopic pregnancy represents a rare form of presentation, with an incidence of 2-4% of all ectopic pregnancies. However, despite its low incidence, it is associated with a five-fold increase in mortality, significantly impacting maternal mortality rates, accounting for approximately 10-15% of cases. Objective: To present a case of interstitial ectopic pregnancy, which is a rare occurrence, as well as the successful medical management approach with mifepristone and methotrexate. Case report: A 28-year-old women with a history of right paraovarian cyst tubal resection presented to the emergency department due to suspected left interstitial pregnancy identified on obstetric ultrasound. The patient was successfully managed with pharmacological treatment using doses of methotrexate and mifepristone. Conclusions: Medical management with methotrexate and mifepristone for interstitial ectopic pregnancy appears to be an effective choice in cases with hemodynamic stability and a desire for fertility preservation.

Caracterización clínico-epidemiológica de pacientes operadas de embarazo ectópico en la provincia de Camagüey / Clinical-Epidemiological Characterization of Patients Operated on for Ectopic Pregnancy in Camagüey Province

Introducción: Los datos clínicos y antecedentes epidemiológicos resultan de vital importancia en el diagnóstico oportuno del embarazo ectópico. Objetivo: Determinar las características clínico-epidemiológicas de pacientes operadas de embarazo ectópico. Métodos: Se diseñó y se realizó un estudio descriptivo, de corte transversal, tipo serie de casos en un universo de 130 pacientes operadas de embarazo ectópico en el Hospital Ginecobstétrico de Camagüey durante el período comprendido de enero a diciembre de 2020. Las variables estudiadas incluyeron: grupos de edades, color de la piel, municipio de procedencia, factores de riesgo, signos y síntomas, así como localización y estado hemodinámico. Resultados: Primaron las pacientes en el grupo de edad de 30-34 años (32,3 porciento), color de piel blanca (76,9 porciento), procedentes del municipio Camagüey (68,5 porciento). La tasa de incidencia provincial por cada 100 embarazos se ubicó en 2,2 porciento, superada por los municipios Camagüey (3,5 porciento) y Jimaguayú (3,0 porciento). El principal factor de riesgo identificado fue el tabaquismo (66,2 porciento), en tanto el dolor abdominal estuvo presente en el 100 porciento de los casos. Se reportó con mayor frecuencia la localización tubárica (91,0 porciento), y el 59,1 porciento se clasificó como no accidentado. Conclusiones: Se determinaron ciertas características en la serie estudiada, de acuerdo con la preponderancia de la variable de los signos y síntomas según los grupos de edades, como elemento a tener en cuenta. La presencia mayoritaria de factores de riesgo modificables supone que sobre estos se debe intervenir desde la atención primaria de salud(AU)

Introduction: Clinical data and epidemiological background are of vital importance for the timely diagnosis of ectopic pregnancy. Objective: To determine the clinical-epidemiological characteristics of patients operated on for ectopic pregnancy. Methods: A descriptive, cross-sectional study of case series type was designed and carried out in a universe of 130 patients operated on for ectopic pregnancy at the gynecobstetric hospital of Camagüey during the period from January to December 2020. The studied variables included age groups, skin color, municipality of origin, risk factors, signs and symptoms, as well as localization and hemodynamic status. Results: There was a predominance of patients in the age group of 30-34 years (32.3 percent), white skin color (76.9 porciento), and from the municipality of Camagüey (68.5 ). The provincial incidence rate per 100 pregnancies was 2.2 porciento, surpassed by the municipalities of Camagüey (3.5 percent and Jimaguayú (3.0 percent). The main identified risk factor was smoking (66.2 percent), while abdominal pain was present in 100 percent of the cases. Tubal location was the most frequently reported (91.0 percent), and 59.1 percent were classified as unruptured. Conclusions: Certain characteristics were determined in the studied series, according to the preponderance of the variable of signs and symptoms by age groups, as an element to be taken into account. The majority presence of modifiable risk factors implies that these should be addressed by primary health care(AU)

Tercer molar heterotópico, etiología y manejo quirúrgico / Heterotopic third molar, etiology and surgical management

Los terceros molares heterotópicos son dientes que se encuentran incluidos en los maxilares y la mandíbula distantes a su sitio de erupción habitual. Su etiología no está bien definida y existen diversas teorías. Estos dientes pueden aparecer en diferentes zonas de las estructuras óseas, teniendo predilección por la mandíbula. Suelen aparecer entre la segunda y la séptima década de la vida, la mayoría de los casos son hallazgos imagenológicos en la consulta odontológica. El tercer molar mandibular es el diente que presenta heterotopía con mayor frecuencia, siendo su localización habitual en rama mandibular y en la región subcondílea. El quiste dentígero es la patología asociada más común. Presentamos un caso de tercer molar heterotópico en rama mandibular derecha de larga evolución, relacionado a un quiste dentígero, el cual se manejó bajo anestesia regional. Se describe la etiología, técnica quirúrgica y consideraciones especiales relacionados con los dientes heterotópicos (AU)

Heterotopic third molars are teeth that are embedded in the maxilla and mandible, remote from their usual eruption site. Its etiology is not well defined and there are various theories at the moment. These teeth can appear in different areas of the bone's structures, having a predilection for the jaw. They usually appear between the second and seventh decade of life, and in most cases are imaging findings. The mandibular third molar is the tooth with the most frequent heterotopia, being its usual location in the mandibular branch and in the subcondylar region. The dentigerous cyst is the most common associated pathology. We present a case of a long evolution heterotopic third molar in the right mandibular branch, related to a dentigerous cyst which was managed under local anesthesia. The etiology, surgical technique and special considerations related to heterotopic teeth are described (AU)

Embarazo ectópico en cicatriz de cesárea: reporte de un caso

La gestación extrauterina se denomina embarazo ectópico, esta es una emergencia obstétrica del primer trimestre, que cada vez está teniendo una incidencia mayor. Una de las localizaciones en las que se pueden generar estas gestaciones es la cicatriz de cesárea previa, lo cual supone un reto para el ginecólogo tratante debido a su dificultad diagnóstica y opciones terapéuticas. Se reporta el caso de una paciente de 37 años que ingresó por el servicio de emergencia con 6 semanas de amenorrea, y con el antecedente de 2 cesáreas. Se le realizó un legrado uterino que se complicó y terminó en la realización de una histerectomía. El embarazo ectópico en cicatriz de cesárea es raro, sin embargo, es importante pensar en esta opción diagnóstica en gestantes con sangrado en el primer trimestre con antecedente de cesárea para poder buscar signos ecográficos en la evaluación.

Extrauterine gestation is called ectopic pregnancy, this is an obstetric emergency of the first trimester, which is having an increasing incidence. One of the locations in which these pregnancies can be generated is the scar from a previous cesarean section, which is a challenge for the treating gynecologist due to its diagnostic difficulty and therapeutic options. We report the case of a 37-year-old patient who was admitted to the emergency service with 6 weeks of amenorrhea, and with a history of 2 cesarean sections. She underwent a uterine curettage that was complicated and ended in a hysterectomy. Ectopic pregnancy in cesarean section scar is rare, however, it is important to consider this diagnostic option in pregnant women with bleeding in the first trimester with a history of cesarean section to be able to look for ultrasound signs in the evaluation.

Ectopic pancreas, gastric, duodenal and colonic tissue in a case of persistent umbilical discharge: Report of two patients with review of literature

One of the typical complaints in the pediatric population is umbilical discharge. Among the congenital causes, remnants of omphalomesenteric duct or patent urachus are often detected. On a few occasions, multiple types of ectopic tissue are present. We describe histopathologic findings of two cases reported recently at our center as pediatric umbilical lesions with associated ectopic tissue. Histopathology of the excised mass confirmed the patent omphalomesenteric duct with ectopic gastric, duodenal, and colonic mucosa and pancreatic tissue in two patients with the clinical presentation of umbilical discharge. There were no associated congenital anomalies in these patients. The presence of multiple ectopic gastrointestinal mucosa and pancreas in the umbilical mass is unusual. Herein, we report these cases because of its rarity, multiple ectopic tissues, and reviewing the literature of the reported cases of multiple ectopic tissues.

Tratamiento del embarazo ectópico implantado en cicatriz de cesárea: estudio de cohorte 2018-2022, Lima, Perú / Treatment of ectopic pregnancy implanted on cesarean scar: cohort study 2018-2022, Lima, Peru

Objetivos: Describir las características clínicas y el tratamiento del embarazo ectópico implantado en la cicatriz de cesárea, así como las complicaciones y el pronóstico obstétrico. Materiales y métodos: Estudio de cohorte retrospectivo de gestantes con diagnóstico de embarazo ectópico implantado en la cicatriz de cesárea según los criterios de la Sociedad de Medicina Materno-Fetal, atendidas entre enero de 2018 y marzo de 2022 en dos instituciones de alta complejidad, pertenecientes a la seguridad social, ubicadas en Lima, Perú. Se hizo un muestreo consecutivo. Se midieron variables sociodemográficas y clínicas de ingreso, diagnóstico, tipo de tratamiento, complicaciones y pronóstico obstétrico. Se hace un análisis descriptivo. Resultados: Se incluyeron 17 pacientes, de 29.919 partos. De estas, el 41,2 % recibió tratamiento médico y el resto recibió tratamiento quirúrgico. Se realizó un manejo local exitoso con metotrexato en el saco gestacional en dos pacientes con ectópico tipo 2. Cuatro de las pacientes requirieron histerectomía total. Seis pacientes experimentaron una gestación después del tratamiento, y 4 de ellas culminaron el embarazo con una madre y un neonato saludables. Conclusiones: El embarazo ectópico implantado en la cicatriz de una cesárea es una entidad poco frecuente, para la cual se cuenta con alternativas de manejo médico y quirúrgico con aparentes buenos resultados. Se requieren más estudios con mayor calidad metodológica de asignación aleatoria que ayuden a caracterizar la seguridad y la efectividad de las diferentes alternativas terapéuticas para las mujeres con sospecha de esta patología.

Objectives: To describe the clinical characteristics and treatment of ectopic pregnancy arising in the cesarean section scar, as well as its complications and obstetric prognosis. Material and methods: Retrospective cohort study of pregnant women with the diagnosis of a scar pregnancy in accordance with Maternal-Fetal Medicine Society criteria, seen between January 2018 and March 2022 in two high complexity institutions of the social security system, located in Lima, Peru. Consecutive sampling was used. Baseline sociodemographic and clinical variables were measured, including diagnosis, type of treatment, complications and obstetric prognosis. A descriptive analysis was performed. Results: Out of 29,919 deliveries, 17 patients were included. Of these, 41.2 % received medical management and the rest were treated surgically. Successful management with intra-gestational sac methotrexate was performed in two patients with ectopic pregnancy type 2. Four patients required total hysterectomy. Six patients became pregnant after the treatment and 4 completed their pregnancy with healthy mother and neonate pairs. Conclusions: Ectopic pregnancy implanted in a cesarean section scar is an infrequent occurrence for which medical and surgical management options are available with apparently good outcomes. Further studies of better methodological quality and random assignment are needed in order to help characterize the safety and effectiveness of the various therapeutic options for women with suspected scar pregnancy.

Comportamiento del tiempo de conducción retrógrada al momento de la inducción de las taquicardias supraventriculares y su rol en el diagnóstico diferencial / Behavior of Retrograde Conduction Time at Supraventricular Tachycardia Induction and its Role in Differential Diagnosis

RESUMEN Antecedentes : El diagnóstico diferencial entre la taquicardia reentrante ortodrómica (TRO) y la taquicardia por reentrada nodal atípica (TRNa) puede ser dificultoso. Nuestra hipótesis es que las TRNa tienen más variabilidad en el tiempo de con ducción retrógrada al comienzo de la taquicardia que las TRO. Nuestros objetivos fueron evaluar la variabilidad en el tiempo de conducción retrógrada al inicio de la taquicardia en TRNa y TRO, y proponer una nueva herramienta diagnóstica para diferenciar estas dos arritmias. Métodos : Se midió el intervalo ventrículo-auricular (VA) de los primeros latidos tras la inducción de la taquicardia, hasta su estabilización. La diferencia entre el intervalo VA máximo y el mínimo se definió como delta VA (ΔVA). También contamos el número de latidos necesarios para que se estabilice el intervalo VA. Se excluyeron las taquicardias auriculares. Resultados : Se incluyeron 101 pacientes. Se diagnosticó TRO en 64 pacientes y TRNa en 37. El ΔVA fue 0 (rango intercuartílico, RIC, 0-5) milisegundos (ms) en la TRO frente a 40 (21-55) ms en la TRNa (p < 0,001). El intervalo VA se estabilizó significativamente antes en la TRO (1,5 [1-3] latidos) que en la TRNa (5 [4-7] latidos; p < 0,001). Un ΔVA < 10 ms diagnosticó TRO con 100% de sensibilidad, especificidad y valores predictivos positivo y negativo. La estabilización del intervalo VA en menos de 3 latidos predijo TRO con buena precisión diagnóstica. Los resultados fueron similares considerando sólo vías accesorias septales. Las TRN típicas tuvieron una variación intermedia. Conclusión : Un ΔVA < 10 ms es un criterio simple, que distingue con precisión la TRO de la TRNa, independientemente de la localización de la vía accesoria.

ABSTRACT Background : Differential diagnosis between orthodromic reentrant tachycardia (ORT) and atypical nodal reentrant tachy cardia (ANRT) can be challenging. Our hypothesis was that ANRT presents more variability in retrograde conduction time at tachycardia onset than ORT. Objectives : The objectives of this study were to assess retrograde conduction time variability at the start of tachycardia in ANRT and ORT, and postulate a new diagnostic tool to differentiate these two types of arrhythmias. Methods : The ventriculoatrial (VA) interval of the first beats after tachycardia induction was measured until stabilization. The difference between the maximum and minimum VA interval was defined as delta VA (ΔVA), and the number of beats needed for VA interval stabilization was also assessed. Atrial tachycardias were excluded. Results : In a total of 101 patients included in the study, ORT was diagnosed in 64 patients and ANRT in 37. ΔVA interval was 0 (interquartile range [IQR] 0-5) milliseconds (ms) in ORT vs. 40 (21-55) ms in ANRT (p <0.001). The VA interval significantly stabilized earlier in ORT (1.5 [1-3] beats) than in ANRT (5 [4-7] beats) (p<0.001). A ΔVA <10 ms diagnosed ORT with 100% sensitivity, specificity, and positive and negative predictive values. Ventriculoatrial interval stabilization in less than 3 beats predicted ORT with good diagnostic accuracy. The results were similar considering only accessory septal pathways. Typical NRTs presented an intermediate variation. Conclusion : Presence of DVA <10 ms is a simple criterion that accurately differentiates ORT from ANRT, independently of the accessory pathway localization.

Timoma cervical ectópico / Ectopic cervical thymoma

RESUMEN El timoma cervical ectópico es una patología poco frecuente, motivo por el cual su diagnóstico suele ser dificultoso. Debe ser tenido en cuenta como diagnóstico diferencial en pacientes con masas cervicales laterales, sobre todo aquellas que se ubican cerca de la glándula tiroides. El tratamiento consiste en la resección quirúrgica completa. Son tumores de crecimiento lento, la mayoría de ellos histológicamente benignos. En el caso aquí presentado, por su tamaño y ubicación, fue necesario separarlo de los grandes vasos y estructuras nerviosas cercanas, lo que hizo más compleja la cirugía.

ABSTRACT Ectopic cervical thymoma is a rare entity; therefore, its diagnosis is often difficult. It should be considered as a differential diagnosis in patients with lateral cervical masses, especially those close to the thyroid gland. Surgical treatment is indicated with complete excision of the lesion. Cervical thymomas are slow-growing tumors, usually benign. In this case report, due to tumor size and location, it was necessary to separate it from the large vessels and adjacent nerve structures, resulting in a more complex procedure.

Embarazo ectópico retroperitoneal primario

El embarazo ectópico representa 1,5% a 2% de todos los embarazos y es causa común de mortalidad relacionada con el embarazo durante el primer trimestre. La ubicación más común es la trompa de Falopio y menos del 2% son embarazos abdominales. El embarazo ectópico retroperitoneal es un tipo extremadamente raro con una patogénesis bastante compleja. Esta ubicación inusual tiene un alto riesgo de complicaciones potencialmente mortales. El diagnóstico temprano es difícil por la incapacidad de diferenciar signos, síntomas, concentraciones de gonadotropina coriónica e imágenes con embarazos ectópicos de las ubicaciones inusuales, como el retroperitoneo. Además, es necesario tener cuidado con el diagnostico de estos casos cuando los sitios más comunes de aparición no presentan alteraciones. El tratamiento consiste en la extracción de tejido trofoblástico por laparotomía o laparoscopia. Se presenta un caso de embarazo ectópico retroperitoneal primario.

Ectopic pregnancy accounts for 1.5%-2% of all pregnancies and is a common cause of pregnancy-related mortality during the first trimester. The most common location is the fallopian tube and less than 2% are abdominal pregnancies. Retroperitoneal ectopic pregnancy is an extremely rare type with a rather complex pathogenesis. This unusual location has a high risk of life-threatening complications. Early diagnosis is difficult because of the inability to differentiate signs, symptoms, chorionic gonadotropin concentrations, and imaging with ectopic pregnancies from unusual locations, such as the retroperitoneum. In addition, it is necessary to be careful with the diagnosis of these cases when the most common sites of appearance do not present alterations. Treatment consists of removal of trophoblastic tissue by laparotomy or laparoscopy. A case of primary retroperitoneal ectopic pregnancy is presented.

Análise das gestações ectópicas íntegras tratadas com o protocolo de dose única de metotrexato / Analysis of unruptured ectopic pregnancies treated with single-dose methotrexate protocol

Objetivo: Avaliar o índice de sucesso do tratamento da gravidez ectópica com o protocolo de dose única do metotrexato e verificar sua correlação com variáveis clínicas e dados dos exames complementares. Métodos: É um estudo epidemiológico observacional, analítico, retrospectivo, de delineamento transversal. Foi realizado de janeiro de 2014 a agosto de 2020 em um hospital público, de ensino, em nível terciário, do Sul do Brasil. Em 73 casos com diagnóstico de gestação ectópica íntegra, foi utilizado o protocolo de dose única de metotrexato intramuscular, com a dose de 50 mg/m2 de superfície corporal. As variáveis do estudo foram relacionadas ao sucesso do tratamento e abordaram as características clínicas na admissão, dos exames complementares e do tratamento realizado. As variáveis foram comparadas por análise de regressão de Poisson. O nível de significância estabelecido foi de p < 0,05. Resultados: O índice de sucesso foi de 83,6%, e em nove casos foi necessária uma segunda dose da medicação. Nível de ß-hCG inicial superior a 5.000 mUI/mL foi relacionado a menor chance de sucesso (odds ratio ajustado de 0,20 [0,05-0,95]). Tamanho da imagem anexial, presença de líquido livre na cavidade abdominal e demais variáveis estudadas não afetaram a chance de sucesso do tratamento. Conclusão: O protocolo de dose única de metotrexato mostrou-se uma opção válida para o tratamento da gestação ectópica íntegra, notadamente quando o nível de ß-hCG inicial é inferior 5.000 mUI/mL.

Objective: The purpose of the present study is to evaluate the success rate of treatment of ectopic pregnancy with the single-dose methotrexate protocol and to verify its correlation with clinical variables and complementary exam data. Methods: This is a retrospective epidemiological observational analytical cross-sectional study. It was carried out from January 2014 to August 2020 in a tertiary level teaching hospital in southern Brazil. In 73 cases with a diagnosis of intact ectopic pregnancy, the intramuscular methotrexate single-dose protocol was applied with a dose of 50 mg/m2 of body surface. The study variables were related to the success of the treatment and addressed the clinical characteristics on admission, the complementary exams and the treatment performed. The variables were compared by Poisson regression analysis. The level of significance was set at p < 0.05. Results: The success rate was 83.6%, and in nine cases a second dose of the medication was necessary. An initial ß-hCG level greater than 5,000 mIU/mL was related to a lower chance of success (adjusted odds ratio of 0.20 [0.05- 0.95]). The size of the adnexal image, the presence of free fluid in the abdominal cavity and other variables studied did not affect the chance of a successful treatment. Conclusion: The methotrexate single-dose protocol proved to be a valid option for the treatment of intact ectopic pregnancy, notably when the initial ß-hCG level is below 5,000 mIU/mL.

Embarazo ectópico abdominal con feto vivo en el Hospital Provincial de Bié, Angola / Abdominal ectopic pregnancy with a live fetus in Bié Provincial Hospital, Angola

El embrión, en condiciones normales, es concebido en la trompa y migra al útero. Un pequeño porcentaje que no llega a completar esta migración, se convierte en embarazo ectópico. Se presentó el caso de un embarazo ectópico abdominal con feto vivo; paciente femenina de 32 años de edad, multigesta con 4 partos eutócicos a término. A las 37 semanas de edad gestacional se remitió al Hospital Provincial de Bié por presentar dolor abdominal difuso, de moderada intensidad, que se exacerbaba con los movimientos fetales. Se realizó la cesárea, se encontró un embarazo ectópico abdominal con feto vivo y placenta implantada en fondo uterino, epiplón y colon transverso. Se dejó placenta in situ para un posterior seguimiento.

The embryo, under normal conditions, is conceived into the fallopian tube and migrates to the uterus. A small percentage of the embryos that do not complete this migration become an ectopic pregnancy. We present a 32-year-old female patient with multiple gestation pregnancies and 4 normal term deliveries who had an abdominal ectopic pregnancy with a live fetus. She was referred to Bié Provincial Hospital at 37 weeks' gestation due to diffuse abdominal pain of moderate intensity, which was exacerbated by fetal movements. A cesarean section was performed; an abdominal ectopic pregnancy with a live fetus and the placenta implanted in the uterine fundus, omentum, and transverse colon was found. The placenta was left in situ for further follow-up.

A rare variation of radial nerve coexisting with the intercalated ectopic muscle from latissimus dorsi muscle / Una rara variación del nervio radial que coexiste con el músculo ectópico intercalado del músculo latísimo del dorso

SUMMARY: The axilla is the main communication channel connecting the upper limbs, the neck and chest. Stabilization of the internal structure is essential for upper limb and shoulder mobility. In this case, we observed and recorded the characteristics of the variation of the radial nerve as well as the intercalated ectopic muscle from latissimus dorsi muscle. The position relationship between both, was also particularly noted by us. In view of the presence of the variation we reported, related clinical research, surgery and disease diagnosis are expected to take this case into account.

La axila es el principal canal de comunicación que conecta los miembros superiores, el cuello y el tórax. La estabilización de la estructura interna es fundamental para la movilidad del miembro superior y del hombro. En este caso observamos y registramos las características de la variación del nervio radial así como del músculo ectópico intercalado del músculo latísimo del dorso. La relación de posición entre ambas también fue significativa en este estudio. En vista de la presencia de la variación que informamos, se espera que la investigación clínica relacionada con la cirugía y el diagnóstico de la enfermedad tengan en cuenta este caso.

Advances in Pseudoxanthoma Elasticum / 罕见病研究

Pseudoxanthoma elasticum(PXE) is a rare, genetic, metabolic disease characterized by ectopic calcification of connective tissue that primarily affects the skin, retina and cardiovascular system, which characteristic histopathology is calcification and fragmentation of elastic fibers in dermis.PXE is mainly caused by ABCC6 gene mutation, which is one of the important regulators of the serum inorganic pyrophosphate (PPi) homoeostasis, a main inhibitor of ectopic calcification and the deficiency of PPi can lead to ectopic calcification. The clinical features are highly heterogeneous.Typical skin lesions of PXE are yellowish flat papules and plaques, and the symptoms of skin relaxation and shrinkage can be manifested in the later stage.Retina, cardiovascular and other complications seriously affect the health and quality of life of patients. The current therapy of PXE include symptom improvement, systemic anti-ectopic calcification medicine, gene therapy and so on.We review the pathogenesis, clinical manifestations, diagnosis and treatment of PXE.

Expert Consensus on Bilateral Inferior Petrosal Sinus Sampling in the Diagnosis of Cushing′s Syndrome (2023) / 罕见病研究

@#Cushing′s syndrome(CS)is a clinical syndrome caused by a variety of causes, with main manifestations exhibited by central obesity, purple skin striae, hypertension, and diabetes. In patients with adrenocorticotropic hormone(ACTH)-dependent CS, the result of bilateral inferior petrosal sinus sampling(BIPSS)is the gold standard for determining the source of ACTH in the absence of routine imaging findings.However, the indications, contraindications, operating procedures, precautions and outcome judgments of BIPSS differ from one medical center to another, and there are currently no international and domestic clinical guidelines and expert consensus on BIPSS. In order to further improve the operation specifications of BIPSS in the diagnosis process of difficult CS, the Hypothalamic and Pituitary Disease Group of the China Alliance for Rare Diseases and the Innovation Center of Pituitary Diseases of Peking Union Medical College Hospital organized experts in endocrinology, interventional radiology, neurosurgery and laboratory in China to formulate this consensus. This consensus aims to provide standardized methodological guidance for the use of BIPSS in the differential diagnostic process of CS in clinical practice.

Persistent primary hyperparathyroidism secondary to an ectopic mediastinal adenoma in a young adult: A case report / Journal of the ASEAN Federation of Endocrine Societies

@#Primary hyperparathyroidism commonly affects elderly women. When present in the young population, it is usually asymptomatic, most frequently due to a parathyroid adenoma and the definitive management is surgical excision. Uncommonly, 5-10% of patients fail to achieve long-term cure after initial parathyroidectomy and 6-16% of them is due to an ectopic parathyroid adenoma that will require focused diagnostic and surgical approaches. We report a 21-year-old male who had bilateral thigh pain. Work-up revealed bilateral femoral fractures, brown tumors on the arms and multiple lytic lesions on the skull. Serum studies showed hypercalcemia (1.83 mmol/L), elevated parathyroid hormone [(PTH) 2025.10 pg/mL], elevated alkaline phosphatase (830 U/L), normal phosphorus (0.92 mmol/L) and low vitamin D levels (18.50 ng/mL). Bone densitometry showed osteoporotic findings. Sestamibi scan showed uptake on the left superior mediastinal region consistent with an ectopic parathyroid adenoma. Vitamin D supplementation was started pre-operatively. Patient underwent parathyroidectomy with neck exploration; however, the pathologic adenoma was not visualized and PTH levels remained elevated post-operatively. Chest computed tomography with intravenous contrast was performed revealing a mediastinal location of the adenoma. A repeat parathyroidectomy was done, with successful identification of the adenoma resulting in a significant drop in PTH and calcium levels. Patient experienced hungry bone syndrome post-operatively and was managed with calcium and magnesium supplementation. A high index of suspicion for an ectopic adenoma is warranted for patients presenting with hypercalcemia and secondary osteoporosis if there is persistent PTH elevation after initial surgical intervention. Adequate follow-up and monitoring is also needed starting immediately in the post-operative period to manage possible complications such as hungry bone syndrome.

Mechanism of Gegen Qinliantang in Improving Ectopic Lipid Accumulation in Liver of db/db Mice with Type 2 Diabetes Mellitus by Regulating AMPK-FoxO3a Autophagy Axis / 中国实验方剂学杂志

ObjectiveTo explore the mechanism of Gegen Qinliantang （GQT） in improving ectopic lipid accumulation in the liver of db/db mice with type 2 diabetes mellitus （T2DM） by regulating the adenosine monophosphate-activated protein kinase （AMPK）-forkhead box O3a （FoxO3a） autophagy axis， to provide a scientific basis for clarifying the hypoglycemic mechanism of GQT and its clinical application. MethodSeventy-five spontaneous T2DM db/db mice and 15 normal db/m mice were selected and maintained on a regular diet for one week， followed by the measurement of blood glucose. They were then randomly divided into six groups， with 15 mice in each group， including normal group （0.2 g·kg-1 saline）， metformin group （0.2 g·kg-1）， high-， medium， and low-dose GQT group （31.9， 19.1， 6.9 g·kg-1）， and model group （0.2 g·kg-1 saline）. The mice were orally administered the corresponding drugs once daily for 12 weeks. Fasting blood glucose （FBG） and glycated hemoglobin （HbA1c） were detected. Fasting insulin （FINS） and free fatty acid （FFA） levels were measured by enzyme-linked immunosorbent assay （ELISA）. Pathological changes in liver tissues were observed by hematoxylin-eosin （HE） staining. The protein expression levels of phosphorylated （p）-AMPK， p-FoxO3a， and autophagy-related proteins microtubule-associated protein 1 light chain 3 Ⅱ （LC3Ⅱ） and p62 were detected using Western blot. Immunofluorescence was used to detect the expression of hypoxia-inducible factor-1α （HIF-1α） in liver tissues. Real-time polymerase chain reaction （Real-time PCR） was performed to detect the mRNA expression of AMPK， FoxO3a， and LC3 in liver tissues. ResultCompared with the normal group， the model group showed pathological changes in liver tissues， increased FBG， HbA1c， FINS， and FFA levels （P<0.01）， increased protein expression levels of p-AMPK， p62， and HIF-1α， decreased protein expression levels of p-FoxO3a and LC3Ⅱ in liver tissues （P<0.01）， decreased mRNA expression of AMPK， and increased expression of FoxO3a （P<0.01）. Compared with the model group， the treatment groups showed relieved liver tissue lesions and decreased FBG， HbA1c， FINS， and FFA levels （P<0.01）. The expression of p-AMPK， p62， and HIF-1α increased， while the expression of p-FoxO3a showed a dose-dependent decrease in the high-dose GQT group. The expression of LC3Ⅱ increased in the metformin group and the high-dose GQT group （P<0.01）. The mRNA expression of AMPK showed a dose-dependent increase， and the expression of FoxO3a showed a dose-dependent decrease in the treatment groups （P<0.01）. ConclusionGQT can improve ectopic lipid accumulation in the liver of T2DM db/db mice， which may be related to the regulation of the AMPK-FoxO3a autophagy axis.