Lack of Consensus Among Healthcare Professionals at a Large Academic Medical Center on the Use of Exome Sequencing for Prenatal Diagnosis

Authors

Kylie Johnson
Hadi Erfani
Mohamad Ali Maktabi
Ignatia Van den Veyver
Salma Nassef

Publication Date

12-1-2022

Journal

Journal of Genetic Counseling

DOI

10.1002/jgc4.1607

PMID

35799470

PMCID

PMC10022483

PubMedCentral® Posted Date

12-1-2023

PubMedCentral® Full Text Version

Author MSS

Published Open-Access

yes

Keywords

Pregnancy, Female, Humans, Exome, Consensus, Prenatal Diagnosis, Academic Medical Centers, Delivery of Health Care, exome sequencing, prenatal diagnosis, attitudes

Abstract

Prenatal exome sequencing (ES) is increasingly used for prenatal diagnosis because emerging data indicate it has incremental diagnostic benefit in pregnancies with fetal anomalies without identified genetic abnormalities by karyotyping and chromosomal microarray analysis. The aim of this study was to evaluate the medical community's attitude toward the clinical utility and use of exome sequencing for prenatal diagnosis and to address differences in attitudes and responses by type of practitioner, level of training, and years passed since last full-time training. We analyzed the answers of 109 trainees and professionals in the fields of genetic counseling, laboratory science, and medicine to an online survey addressing these topics. Multiple-choice questions asked participants about their awareness of prenatal ES and what genetic test they would choose to order in certain scenarios. Likert-scale questions assessed participants' opinions of statements asserting when prenatal ES should be used for diagnostic testing. Attitude toward the use of prenatal ES statistically differed (p <  0.05) by type of participant and level of training. Practicing genetic counselors and physicians were more selective in their recommendations for prenatal ES than laboratory scientists. Genetic counseling students and practicing genetic counselors felt similarly about indications for the use of prenatal ES, whereas medical students were more liberal in their recommendations for prenatal ES than practicing physicians. This study shows a lack of consensus among the medical community regarding the clinical utility and indications for prenatal ES.