Acretismo placentário e suas complicações / Placental accretism and its complications

Acretismo é um termo genérico que significa uma invasão trofoblástica anormal da placenta em parte ou, mais raramente, na totalidade do miométrio, podendo inclusive chegar à serosa. Esse evento ocorre mais comumente em uma região de cicatriz uterina prévia, onde há um defeito na decidualização. A principal consequência disso é a necessidade frequente de histerectomia puerperal, acarretando grande morbidade materna. Este artigo apresenta o caso de uma gestante com placenta percreta, com acometimento vesical e de colo uterino que necessitou de histerectomia total. Além disso, no pós-operatório, apresentou fístula vesicoabdominal. O objetivo deste artigo é demonstrar as complicações do acretismo placentário e as maneiras de tentar reduzi-lo. O aumento nas proporções de nascimentos via parto cesariana, sem que haja evidências claras de que isso interfira na queda da mortalidade e/ou morbidade materna e neonatal, sugere que estejam sendo indicadas muito mais cesarianas que o necessário. Para redução nas taxas de cesariana e, consequentemente, das complicações dela, como nos casos de acretismo, é necessário repensar a cultura do cuidado da prática clínica em obstetrícia.(AU)

Accretism is a generic term that means an abnormal trophoblastic invasion of the placenta in part or, more rarely, in the entire myometrium, which may even reach the serosa. This event most commonly occurs in a region of previous uterine scar, where there is a decidualization defect. The main consequence of this is the frequent need for puerperal hysterectomy, causing great maternal morbidity. This article presents the case of a pregnant woman with placenta percreta, with bladder and uterine cervix involvement, who required hysterectomy. In addition, postoperatively, presented a vesico-abdominal fistula. The purpose of this article is to demonstrate the complications of placental accretism and ways to try it. The increase in the proportion of births via cesarean delivery, without clear evidences that this interferes with the decrease in maternal and neonatal mortality and/or morbidity, suggests that much more cesarean sections are being indicated than necessary. To reduce cesarean rates and consequently, its complications, as in cases of accretism, it is necessary to rethink the culture of care in clinical practice in obstetrics.(AU)

Acretismo placentario: un diagnóstico emergente. Abordaje quirúrgico no conservador / Placental accreta: an emerging diagnosis. Approach non-conservative surgical

RESUMEN El espectro de acretismo placentario es un fenómeno infrecuente del embarazo cuya incidencia ha aumentado considerablemente y que está caracterizado por el anclaje anormal de las vellosidades coriónicas al miometrio, lo cual aumenta la morbi-mortalidad materna durante la resolución quirúrgica. Según las capas uterinas comprometidas, serán clasificadas como placenta acreta (contacta miometrio), increta (penetra miometrio) y percreta (compromete todo el miometrio y/o eventualmente órganos adyacentes), siendo su mayor factor de riesgo: la cesárea anterior y la placenta previa. En este artículo se realizó una revisión bibliográfica abarcando definiciones, diagnóstico y las nuevas tendencias en manejo quirúrgico no conservador propuesto en la nueva guía de la Federación Internacional de Ginecología y Obstetricia publicada en 2018 y elaborando una discusión respecto a ellas.

SUMMARY Placenta accreta spectrum is an uncommon phenomenon of pregnancy whose incidence has increased considerably over time and is characterized by the abnormal anchoring of the chorionic villi to the myometrium, which increases maternal morbidity and mortality during surgical resolution. According to the compromised uterine layers, they will be classified as placenta accreta (contacts myometrium), increta (penetrates myometrium) and percreta (compromises the entire myometrium and / or possibly adjacent organs), being previous caesarean section and placenta previous its major risk factor. In this review, we included definitions, diagnosis, and the new topics in non-conservative surgical management developed by the International Federation of Obstetrics and Gynecolgy published in 2018, and developing a discussion of the topic.

Rotura uterina durante el segundo trimestre de gestación asociado a placenta percreta: presentación de un caso y revisión de la literature / Uterine rupture during the second trimester of pregnancy associated with placenta percreta: presentation of a case and review of the literature

OBJETIVO: Reportar el manejo de un caso de rotura uterina asociado a percretismo placentario en el segundo trimestre de gestación; y realizar una revisión de la literatura acerca del diagnóstico y tratamiento de esta condición. PRESENTACIÓN DEL CASO: Paciente de 31 años con diagnóstico intraoperatorio de rotura uterina asociada a percretismo placentario a la semana 21 de gestación. Requirió manejo quirúrgico inmediato por abdomen agudo, presentando shock hipovolémico y muerte fetal in útero. Materiales y métodos: Se realizó una búsqueda de la literatura registrada en las bases de datos entre el año 1995 y 2017 y publicados en inglés y español. Se incluyeron los reportes de y series de caso y artículos de revisión, con relación al diagnóstico prenatal y tratamiento. RESULTADOS: La mayoría de los casos reportados de rotura uterina se describen en mujeres con rotura uterina por percretismo entre la semana 9 y 34 de gestación. El tratamiento es quirúrgico en la gran mayoría de casos y su abordaje dependerá de los hallazgos intraoperatorios y condiciones médicas asociadas. CONCLUSIÓN: El acretismo placentario presentado en etapas tempranas de la gestación es rara, sin embargo, se debe sospechar según hallazgos clínicos y paraclínicos. El manejo debe estar dirigido de acuerdo al grado de invasión placentaria y situación hemodinámica, la mayoría de las veces es quirúrgico y realizado por un equipo interdisciplinario.

OBJECTIVE: To report the management of a case of uterine rupture associated with placental percreta in the second trimester of pregnancy, and to make a review of the literature about the diagnosis and treatment of this condition. PRESENTACION OF THE CASE: A 31-year-old patient with intraoperative diagnosis of uterine rupture associated with placental percretism at week 21 of gestation, who required immediate surgical intervention for acute abdomen, which developed in a hypovolemic shock and fetal death in utero. MATERIALS AND METHODS: A Research was done of the literature registered in the databases between 1995 and 2017, and published in English and Spanish. We included case reports and case series and review articles, in relation to prenatal diagnosis and treatment. RESULTS: The majority of reported cases of uterine rupture that are found in women with this condition are due to percretism between week 9 and 34 of gestation. The treatment is surgical in the great number of cases, which procedure will follow depending on the intraoperative findings and associated medical conditions. CONCLUSION: Placental accreta presented at early stages of gestation is rare, however it should be taken into account while considering the clinical and paraclinical findings. The treatment must be directed accordingly to the degree of placental invasion and hemodynamic situation, although most of the time will lead to surgery performed by an interdisciplinary team.

Actualidad en el diagnóstico y manejo del acretismo placentario / Update on the diagnosis and treatment of placenta accreta

El acretismo placentario es una entidad que incrementa considerablemente la morbimortalidad materna y fetal. Gracias al advenimiento de nuevos métodos diagnósticos como la resonancia magnética, la cistoscopia, los marcadores séricos, el ultrasonido doppler, etc., el diagnóstico prenatal es factible. El manejo del acretismo placentario de forma tradicional supone la realización de histerectomía multidisciplinaria, involucrando a cirujanos generales, oncoginecólogos o uroginecólogos. Algunos autores han propuesto al manejo conservador como una solución adecuada en ciertos casos, ya sea con el uso de diversos medicamentos que incluyen quimioterápicos o bien de forma expectante. Sin embargo, aún no existe evidencia sólida que determine si el manejo conservador o tradicional es el mejor.

Placenta accreta supposes a special situation that increases the fetal and maternal mo rb i mortality of considerable form. Thanks all new arrival methods as the image of magnetic resonance, the cystoscopy, serum markers, doppler ultrasound, etc., the prenatal diagnostic is feasible. The management of placenta accreta of traditional form supposes a multidisciplinary approach form hysterectomy execution, involving general surgeons, oncogynecologist or urogynecologist. Some authors have proposed the conservative management as an adequate solution in certain cases, whether with the use of several drugs including chemotherapy or expectant form. Nevertheless, not yet solid evidence exists if the surgical traditional approach or the conservative management is the best option.