Journal of obstetrics and gynaecology Canada : JOGC = Journal d'obstetrique et gynecologie du Canada : JOGC · 2025
National Consensus Statements for the Prevention of Maternal Rhesus D Alloimmunization and Management of Alloimmunized Pregnancies: A Modified Delphi Process.
Consensus StatementСтатьяНазвание и аннотация: Перевод в очереди
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Robitaille Nancy, Lieberman Lani, Clarke Gwen, Barrett Jon, De Vrijer Barbra, Hume Heather A, Massey Edwin, Okun Nan, Taillefer Catherine, Somerset David, Vlachodimitropoulou Evangelia, Fung-Kee-Fung Karen
Аннотация
OBJECTIVES: National stakeholders developed guidance statements regarding controversial aspects of perinatal testing and management of pregnancies at risk of or affected by alloimmunization. The objective was to create national, standardized recommendations to guide testing practices, reduce unnecessary testing, optimize resources, and improve patient care.
METHODS: A total of 46 multidisciplinary Canadian experts participated in an iterative Delphi process to reach consensus on 47 practices regarding all aspects of screening and management of pregnant persons at risk of alloimmunization. The panel rated their agreement on a 5-point Likert scale. After each round, panellists voted again on the statements until consensus was achieved, defined as a Cronbach α >0.95 in a maximum of 3 voting rounds. Fifteen of the 47 statements pertaining to high-risk obstetrical scenarios are presented.
RESULTS: A total of 46 experts completed all rounds of voting. Consensus was achieved after 3 survey rounds (Cronbach α = 0.94) for all statements. The 15 statements reaching consensus addressed general issues pertinent to the evaluation of the high-risk patient, including testing for clinically significant antibodies (e.g., Kell), antibody titration frequency, paternal phenotyping, fetal genotyping, multidisciplinary care, and administration of RhIG following clinical situations such as ectopic or molar pregnancy and after invasive fetal testing or therapy.
CONCLUSIONS: The consensus document provides guidance regarding best practices for prevention and management of alloimmunization to RhD and clinically significant antibodies to optimize RhIG usage and support clinical units. To effect practice change, knowledge translation of this consensus will require a broad educational program involving clinical offices, hospital emergency departments, and birthing units.
METHODS: A total of 46 multidisciplinary Canadian experts participated in an iterative Delphi process to reach consensus on 47 practices regarding all aspects of screening and management of pregnant persons at risk of alloimmunization. The panel rated their agreement on a 5-point Likert scale. After each round, panellists voted again on the statements until consensus was achieved, defined as a Cronbach α >0.95 in a maximum of 3 voting rounds. Fifteen of the 47 statements pertaining to high-risk obstetrical scenarios are presented.
RESULTS: A total of 46 experts completed all rounds of voting. Consensus was achieved after 3 survey rounds (Cronbach α = 0.94) for all statements. The 15 statements reaching consensus addressed general issues pertinent to the evaluation of the high-risk patient, including testing for clinically significant antibodies (e.g., Kell), antibody titration frequency, paternal phenotyping, fetal genotyping, multidisciplinary care, and administration of RhIG following clinical situations such as ectopic or molar pregnancy and after invasive fetal testing or therapy.
CONCLUSIONS: The consensus document provides guidance regarding best practices for prevention and management of alloimmunization to RhD and clinically significant antibodies to optimize RhIG usage and support clinical units. To effect practice change, knowledge translation of this consensus will require a broad educational program involving clinical offices, hospital emergency departments, and birthing units.