Placenta prévia

Critérios anatômicos (posição da placenta em relação ao óstio cervical)[1]Jain V, Bos H, Bujold E; Society of Obstetricians and Gynaecologists of Canada. Guideline no. 402: diagnosis and management of placenta previa. J Obstet Gynaecol Can. 2020 Jul;42(7):906-17.e1. http://www.ncbi.nlm.nih.gov/pubmed/32591150?tool=bestpractice.com [2]Royal College of Obstetricians and Gynaecologists. Placenta praevia and placenta accreta: diagnosis and management. Green-top guideline no. 27a. Sep 2018 [internet publication]. https://www.rcog.org.uk/en/guidelines-research-services/guidelines/gtg27a [3]Reddy UM, Abuhamad AZ, Levine D, et al. Fetal imaging: executive summary of a joint Eunice Kennedy Shriver National Institute of Child Health and Human Development, Society for Maternal-Fetal Medicine, American Institute of Ultrasound in Medicine, American College of Obstetricians and Gynecologists, American College of Radiology, Society for Pediatric Radiology, and Society of Radiologists in Ultrasound Fetal Imaging Workshop. J Ultrasound Med. 2014 May;33(5):745-57. http://www.ncbi.nlm.nih.gov/pubmed/24764329?tool=bestpractice.com

Os critérios de diagnóstico são baseados nos achados ultrassonográficos com >18 a 20 semanas de gestação:

• A placenta prévia é diagnosticada quando a placenta recobre o óstio cervical na ultrassonografia.[1]Jain V, Bos H, Bujold E; Society of Obstetricians and Gynaecologists of Canada. Guideline no. 402: diagnosis and management of placenta previa. J Obstet Gynaecol Can. 2020 Jul;42(7):906-17.e1. http://www.ncbi.nlm.nih.gov/pubmed/32591150?tool=bestpractice.com [2]Royal College of Obstetricians and Gynaecologists. Placenta praevia and placenta accreta: diagnosis and management. Green-top guideline no. 27a. Sep 2018 [internet publication]. https://www.rcog.org.uk/en/guidelines-research-services/guidelines/gtg27a [3]Reddy UM, Abuhamad AZ, Levine D, et al. Fetal imaging: executive summary of a joint Eunice Kennedy Shriver National Institute of Child Health and Human Development, Society for Maternal-Fetal Medicine, American Institute of Ultrasound in Medicine, American College of Obstetricians and Gynecologists, American College of Radiology, Society for Pediatric Radiology, and Society of Radiologists in Ultrasound Fetal Imaging Workshop. J Ultrasound Med. 2014 May;33(5):745-57. http://www.ncbi.nlm.nih.gov/pubmed/24764329?tool=bestpractice.com

• A placenta baixa é diagnosticada quando a borda da placenta está a <2 cm do óstio cervical.[1]Jain V, Bos H, Bujold E; Society of Obstetricians and Gynaecologists of Canada. Guideline no. 402: diagnosis and management of placenta previa. J Obstet Gynaecol Can. 2020 Jul;42(7):906-17.e1. http://www.ncbi.nlm.nih.gov/pubmed/32591150?tool=bestpractice.com [2]Royal College of Obstetricians and Gynaecologists. Placenta praevia and placenta accreta: diagnosis and management. Green-top guideline no. 27a. Sep 2018 [internet publication]. https://www.rcog.org.uk/en/guidelines-research-services/guidelines/gtg27a [3]Reddy UM, Abuhamad AZ, Levine D, et al. Fetal imaging: executive summary of a joint Eunice Kennedy Shriver National Institute of Child Health and Human Development, Society for Maternal-Fetal Medicine, American Institute of Ultrasound in Medicine, American College of Obstetricians and Gynecologists, American College of Radiology, Society for Pediatric Radiology, and Society of Radiologists in Ultrasound Fetal Imaging Workshop. J Ultrasound Med. 2014 May;33(5):745-57. http://www.ncbi.nlm.nih.gov/pubmed/24764329?tool=bestpractice.com