Progesterone elevation on the day of oocyte retrieval and live birth rate after in vitro fertilisation treatment.

The objective of this study was to evaluate if progesterone elevation (PE) on the day of oocyte retrieval is associated with IVF outcome. A prospective cohort study of 400 IVF-ICSI cycles, with fresh embryo transfer on day 2-3 was performed. We proposed a serum progesterone (P) level on percentile (p) 90 as a threshold.Pregnancy rates were not affected, however there were more miscarriages (25.7% vs 43.8%) and lower live birth rate (LBR) (28% vs 23.1%) in the PE group (not statistically significant). We also found a positive correlation between P levels and retrieved and mature oocytes, total embryos, and good quality embryos. This is the first study to analyse LBR based on P levels on the day of oocyte retrieval. PE is not associated with the IVF outcome, but there is a trend to lower ongoing pregnancy rate and LBR and more miscarriages. Our results also show that P levels have no negative effects on oocyte and embryo quality.Impact statementWhat is already known on this subject? The influence of PE during IVF cycle on pregnancy rates remains controversial.What do the results of this study add? This is the first study to analyse LBR based on P levels on the day of oocyte retrieval.What are the implications of these findings for clinical practice and/or further research? We demonstrated that pregnancy rates were not affected by PE at oocyte retrieval, but there is a trend to lower ongoing pregnancy rate and LBR and more miscarriages. Randomised controlled trials are needed to offer more evidence of these relationships.

Parto a través de rotura uterina posterior en una paciente con pesario de Arabin / Vaginal birth through posterior uterine breaking in Arabin pessary carrier patient

Resumen ANTECEDENTES: El parto pretérmino es una causa importante de morbilidad y mortalidad materno-fetal. El pesario cervical es un método eficaz para prevenir el parto pretérmino en pacientes con cuello uterino corto. CASO CLÍNICO: Paciente de 38 años, de 34.3 semanas de embarazo, que acudió a consulta por hidrorrea y dolor abdominal. Entre sus antecedentes ginecoobstétricos refirió la colocación de un pesario de Arabin a partir de la semana 20 del embarazo, por diagnóstico de cuello uterino corto (14 mm). La exploración médica reveló: cuello uterino cerrado y formado, con desgarro de 2 cm en la cara posterior uterina, indicándose cesárea de urgencia. Cinco minutos después tuvo aumento importante de dolor abdominal, objetivándose la cabeza fetal en IV plano de Hodge, por lo que se decidió la asistencia mediante parto en el área quirúrgica. Nació un varón de 2045 g, con Apgar 9/10, que ingresó al área de neonatología. Posteriormente se comprobó el desgarro ístmico-cervical, de aproximadamente 7 cm, con prolongación ascendente medial de 4 cm, que se suturó sin contratiempos. El puerperio inmediato y tardío transcurrieron con normalidad. Un año después del parto la paciente se encuentra en excelente estado de salud. CONCLUSIÓN: La rotura uterina en pacientes con pesario es una complicación extremadamente rara. Hasta la fecha no existe un esquema de tratamiento óptimo. Se prefiere una conducta conservadora, sobre todo si existe deseo reproductivo, e individualizar cada caso.

Abstract BACKGROUND: Preterm delivery is an important cause of maternal-fetal morbimortality. The cervical pessary is an effective method to prevent preterm birth in patients with short cervix. CLINICAL CASE: A 38-year-old patient, 34.3 weeks pregnant, attended the clinic due to hidrhorea and abdominal pain. Among his gynecological and obstetric history he referred to the placement of Arabin pessary from week 20 of pregnancy, by diagnosis of short cervix (14 mm). The medical examination revealed: Cervix closed and formed, with a 2 cm tear in the posterior uterine side, indicating an emergency caesarean section. Five minutes later, there was a significant increase in abdominal pain, with the fetal head being seen in the IV plane of Hodge. Therefore, it was decided to assist with delivery in the surgical area. A newborn male, 2045 g, was obtained with Apgar 9 / 10, who entered the neonatology area. Subsequently, the isthmic-cervical tear, of approximately 7 cm, with a medial ascending extension of 4 cm, which was sutured without incident, was confirmed. The immediate and delayed puerperium proceeded normally. One year after the obstetric event, the patient is in excellent health. CONCLUSIONS: Uterine rupture associated to pessary is an extremely rare complication. To date there is no optimal treatment scheme. A conservative behavior is preferred, especially if there is a reproductive desire, and each case is individualized.