ABSTRACT
Introduction: Embryo implantation is a complex and poorly understood process. Most studies to date have focused on the analysis of the endometrium at the end of the estrogenic phase, while the available data on its importance after secretory transformation are limited and inconsistent. Current evidence does not allow for a conclusive interpretation of the changes observed in the pre-implantation endometrium, whether in the natural or replacement cycle, and their relevance in the development of a pregnancy or the implications for clinical practice. Methods: Multicenter prospective observational cohort study. Based on our sample size calculation, the study group will consist of 206 women (exposed or "compaction" group: 103 women with a decrease of ≥ 5% in endometrial thickness between the estrogenic phase and the day of embryo transfer; non-exposed "non-compaction" group: 103 women with similar or greater endometrial thickness between these time points). The main objective of this study is to compare the ongoing pregnancy rates in natural cycles for euploid embryo transfer in patients who present endometrial compaction at the time of transfer versus those who with a stable or greater endometrial thickness with respect to the estrogenic phase. The estimated duration of the study is 30 months. Inclusion criteria are: 18 to 50 years of age, with primary or secondary infertility, subjected to endometrial preparation in a modified natural cycle for transfer of a genetically euploid blastocyst, from their own oocyte or oocyte donation, with a normal uterine cavity. Exclusion criteria are: uterine or endometrial disease (e.g., multiple myomatosis, severe adenomyosis, Asherman syndrome, refractory endometrium), conditions that prevent correct ultrasound assessment (tilted uterus), or a history of recurrent implantation failure or repeated miscarriages. Discussion: The findings from this study will provide valuable insights into the potential influence of the "endometrial compaction" phenomenon on reproductive outcomes during natural cycle endometrial preparation. By examining this aspect, we aim to contribute to a better understanding of the factors that may impact successful outcomes in fertility treatments.
Subject(s)
Embryo Implantation , Embryo Transfer , Pregnancy , Humans , Female , Prospective Studies , Pregnancy Rate , Embryo Transfer/methods , Endometrium , Observational Studies as Topic , Multicenter Studies as TopicABSTRACT
OBJETIVO: Comprobar si hay diferente vascularización placentaria en gestaciones espontáneas comparadas con las conseguidas tras técnicas de reproducción asistida (TRA). MÉTODOS: Se realizó un estudio observacional de casos y controles retrospectivo, de embarazos únicos en semana 20, mediante ecografía transvaginal con Tridimensión y power Doppler. Los volúmenes adquiridos fueron analizados utilizando el programa de imagen VOCAL (Virtual Organ Computer Aided Analysis), para evaluar el Índice de Vascularización (IV), el Índice de Flujo (IF) y el Índice de Vascularización de Flujo (IVF). RESULTADOS: De 130 gestantes incluidas en el estudio, 55 de ellas se habían sometido a tratamientos de esterilidad y 75 eran gestaciones espontáneas. En un análisis comparativo, la vascularización placentaria en el grupo de TRA mostró diferencias estadísticamente significativas, siendo menores, tanto para el IF (p = 0,033) como para el IVF (p = 0,038), acercándose a la significación estadística el IV (p = 0,076). CONCLUSIONES: El estudio de la vascularización placentaria, podría ser de utilidad para comprender algunas diferencias entre gestaciones espontáneas y tras TRA que explicarían algunos resultados perinatales adversos en este tipo de gestaciones
AIM: Check for different placental vascularization in spontaneous pregnancies compared with those obtained after assisted reproduction techniques (ART). METHODS: An observational retrospective study of cases and controls, on singleton pregnancies at week 20, performed by tridimensional transvaginal sonographer and Power Doppler. The volumes acquired were analyzed using the program image VOCAL (Virtual Organ Computer Aided Analysis), to assess the vascularization index (VI), the flow index (FI) and vascularization index Flow (VIF). Outcome: Of 130 pregnant women included in the study, 55 of them had undergone a fertility treatment and 75 were spontaneous pregnancies. In a comparative analysis, placental vascularization in the ART group showed statistically significant differences, being lower for both the FI (p = 0.033) and for VIF (p = 0.038), approaching the VI statistical significance (p = 0.076). CONCLUSIONS: The study of placental vascularization could be useful to understand some differences between spontaneous and after ART pregnancies, to explain some adverse perinatal outcomes in those pregnancies
Subject(s)
Humans , Placenta/blood supply , Echocardiography, Doppler/methods , Fertilization in Vitro , Placenta , Reproductive Techniques , Embryo Implantation/physiology , Imaging, Three-Dimensional , Case-Control StudiesABSTRACT
OBJETIVO: Conocer la posible relación entre la calidad de los embriones transferidos en ciclos de Fecundación In Vitro (FIV) y Microinyección Intracitoplásmica de Espermatozoides (ICSI) con la presencia de anomalías fetales. MATERIAL Y MÉTODOS: Análisis retrospectivo incluyendo casos de anomalías congénitas (n=76), comparándolos con un grupo control (n=240) de nacimientos tras técnicas de reproducción asistida (TRA). Según los tipos de embriones obtenidos, se dividieron los casos en transferencia de calidad alta, media y baja. RESULTADOS: La aparición de defectos es similar con embriones de calidad alta (22,5 %) y media (21,8 %) pero se incrementa cuando se emplean los de baja calidad (40,0 %). Es similar en cuanto a la técnica empleada (FIV o ICSI), gestación única o múltiple, cultivo corto o largo. Sí hay influencia según la edad materna. CONCLUSIÓN: La transferencia de embriones de baja calidad, se asocia a la aparición de un mayor número de defectos congénitos
OBJECTIVE: To find out the possible correlation between the quality of embryos transferred in In Vitro Fertilization (IVF) and Intracytoplasmic Sperm Injection (ICSI) cycles and fetal anomalies. MATERIALS AND METHODS: Retrospective study including cases of congenital anomalies (n=76), compared to the control group (n=240) in births after assisted reproductive techniques (ART). Depending on the type of embryos obtained, the cases were divided into cases of high, medium and low quality transfer. RESULTS: The appearance of defects is similar between high (22.5 %) and medium (21.8 %) quality embryos, but increase when low quality embryos are used (40.0 %). This is similar in both techniques (IVF or ICSI), single or multiple pregnancies, long and short cultures. Maternal age does have an influence. CONCLUSION: Transferring low quality embryos is related to the appearance of a higher number of congenital defects
Subject(s)
Humans , Blastocyst/classification , Embryonic Development , Congenital Abnormalities/epidemiology , Fertilization in Vitro , Embryo Implantation/physiology , Reproductive Techniques , Retrospective Studies , Case-Control StudiesABSTRACT
El síndrome de Ogilvie es una seudoobstrucción aguda de colón en ausencia de obstrucción mecánica, se trata típicamente de una complicación que aparece tras cirugías, sobretodo de cadera y cesáreas. Es de difícil diagnóstico, sobre todo por tener clínica similar al íleo paralítico, aunque con una gravedad muy superior. Sus complicaciones por excelencia son la isquemia y la perforación, que cuando se establecen pueden tener una mortalidad de hasta el 50%. Se trata de un caso con evolución tórpida poscesárea y que, a pesar del tratamiento médico, se complicó con perforación de ciego, acabando en una hemicolectomía derecha (AU)
Ogilvie's syndrome is acute colonic pseudo-obstruction without mechanical obstruction, is a tipical complication of caesareas and hips surgery. It is difficult to diagnose, mainly, by having clinic similar to paralytic ileus, but with a much higher gravity. Its complications are ischemia and perforation, which can have when establishing a mortality rate of up to 50%. This is a case with bad evolution after caesarea and that despite the medical treatment is complicated with cecal perforation, finishing in a right hemicolectomy (AU)
Subject(s)
Humans , Female , Adult , Colonic Pseudo-Obstruction/complications , Colonic Pseudo-Obstruction , Cesarean Section/methods , Radiography, Abdominal , Cholecystectomy/methods , Postoperative Complications , Diagnosis, Differential , Colonoscopy , Postoperative Complications/physiopathologyABSTRACT
El embarazo ectópico intersticial es una entidad rara, que representa el 2-4% de los embarazos ectópicos. Es de difícil diagnóstico tanto por su ubicación como por su rareza. El tratamiento de elección es la laparoscopia.Presentamos un caso de embarazo ectópico intersticial en el que la laparoscópia nos sirvió tanto de diagnóstico como de tratamiento (AU)
The interstitial ectopic pregnancy is a rare condition, accounting for 2-4% of all ectopic pregnancies. It is difficult to diagnose both for its location and for its rarity. The treatment of choice is laparoscopic management. We present a case of interstitial ectopic pregnancy in which laparoscopy was useful in two ways, as a diagnostic tool and for its treatment (AU)
Subject(s)
Humans , Female , Adult , Pregnancy, Ectopic/diagnosis , Pregnancy, Ectopic/surgery , Laparoscopy/methods , Laparoscopy , Vagina/pathology , Vagina , Vaginal Neoplasms/complications , Vaginal Neoplasms/diagnosis , Methotrexate/therapeutic use , Risk Factors , Vaginal Neoplasms/surgery , Vaginal Neoplasms , /methodsABSTRACT
Los quistes ováricos fetales son la causa más frecuente de masa quística intraabdominal diagnosticada prenatalmente, con una incidencia en torno al 30 por ciento. Normalmente son un hallazgo casual en una ecografía de rutina y no se encuentran anomalías asociadas. Pueden resolverse espontáneamente o presentar complicaciones como rotura del quiste, hemorragia intraquística y torsión ovárica. Las diferentes opciones de tratamiento incluyen el manejo conservador, la punción con aspiración del quiste antenatal o neonatal o la quistectomía laparoscópica o por laparotomía. Tras su diagnóstico se recomiendan estudios ecográficos seriados, donde nos será de utilidad la ecografía 3D, ya que esta modalidad de ecografía nos permitirá reconstruir en tres planos el aparato reproductor femenino y estudiar con detalle numerosas patologías tanto uterinas como anexiales. Su uso en combinación con la ecografía Doppler mejora sustancialmente el diagnóstico precoz de las tumoraciones ginecológicas.
Fetal ovarian cysts are the most common cause of prenatally diagnosed intra-abdominal cystic mass, with an incidence around 30 percent. They are usually an incidental finding on a routine ultrasound and anomalies are not associated. They may be resolved spontaneously or lead to complications such as cyst rupture, intracystic hemorrhage and ovarian torsión. Treatment options include conservative management, antenatal or neonatal cyst aspiration, laparoscopic cystectomy and laparotomy. Afterthe diagnosis, serial ultrasound studies are recommended, 3D ultrasound will be useful for us, since this form of ultrasound allows us to reconstruct in three planes the female reproductive system and study in detail a number of both uterine and adnexal pathology. Its use in combination with Doppler ultrasonography improves significantly the early diagnosis of gynecologic tumors.
