Please Test My Child for a Cancer Gene, but Don't Tell Her

Evidence-based recommendations for delivering the diagnosis of X & Y chromosome multisomies in children, adolescents, and young adults: an integrative review

BACKGROUND

The diagnosis of supernumerary X & Y chromosome variations has increased following the implementation of genetic testing in pediatric practice. Empirical evidence suggests that the delivery of the diagnosis has a lasting impact on how affected individuals and their parents perceive and adapt to the diagnosis. The purpose of this review is to synthesize the literature to obtain useful recommendations for delivering a pediatric diagnosis of a sex chromosome multisomy (SCM) based upon a growing body of quantitative and qualitative literature on patient experiences.

METHODS

We conducted an integrative literature review using PubMed, Web of Science and CINAHL employing keywords "genetic diagnosis delivery," "genetic diagnosis disclosure," "sex chromosome aneuploidy," "Klinefelter syndrome" or ""47, XXY," "Jacob syndrome" or "47, XYY," "Trisomy X," "Triple X" or "47, XXX," and "48 XXYY from January 1, 2000, to October 31, 2023.

RESULTS

Literature supports that patients and parents value the provision of up-to-date information and connection with supportive resources. Discussion of next steps of care, including relevant referrals, prevents perceptions of provider abandonment and commitment to ongoing support. Proactively addressing special concerns such as disclosing the diagnosis to their child, family, and community is also beneficial. Tables are provided for useful information resources, medical specialties that may be required to support patients, and common misconceptions that interfere with accurate information about the diagnosis.

CONCLUSION

Patient experiences suggest there should be heightened attention to diagnosis delivery, in reference to the broader ethical and social impacts of a SCM diagnosis. We present recommendations for optimal disclosure of a SCM diagnosis in early and late childhood, adolescence, and young adulthood.

Children's assent within clinical care: A concept analysis

Seeking children's assent has been put forward as a way to foster children's involvement in the healthcare decision-making process. However, the functions of the concept of assent within clinical care are manifold, and methods used to recognize children's capacities and promote their involvement in their care remain debated. We performed an instrumentalist concept analysis of assent, with 58 included articles. Final themes were jointly identified through a deliberative process. Two distinct perspectives of assent were predominant: as an affirmative agreement for a specific decision and as part of a continuous, interactive process of care. Differing standards were provided as to how and when to apply the concept of assent. The concept of dissent was largely omitted from conceptions of assent, especially in situations for which children's refusal would lead to severe health consequences. Ethical implications included fostering autonomy, reducing physical/psychological harm to the child, respecting the child as a human being, and fulfilling the universal rights of the child. There remain important gaps in the theory of assent and its desirable and possible practical implications. Practical standards are largely missing, and evidence supporting the claims made in the literature requires further investigation.

Not just carriers: experiences of X-linked female heterozygotes

PURPOSE

To better understand the needs and experiences of the X-linked carrier community to improve future recognition, diagnosis, and treatment by bringing X-linked carrier voices together.

METHODS

An anonymous survey link was distributed to members of Remember the Girls, a non-profit organization for female (XX) carriers of X-linked conditions, through its website, Facebook group, Instagram, and Twitter. The survey was developed to gather data on XX carriers of numerous X-linked conditions.

RESULTS

One hundred and fifty individuals participated in the study. The majority (81/150) of individuals learned about their carrier status by giving birth to a son diagnosed with an X-linked condition. However, over 80% (120/145) believed that they should learn this information before the age of 18. Over 80% of participants (124/148) felt that they either have or may have symptoms attributable to their X-linked condition. Yet, only 10.1% (15/148) felt that they had sufficient access to knowledgeable healthcare providers and/or medical information. Additionally, 46.7% (70/150) of participants reported that healthcare providers did not discuss reproductive options with them. Improving carrier access to medical information, research studies, new treatments, and reproductive methods was found to be the top priority.

CONCLUSION

Limited information exists on X-linked carriers' risk for symptoms and there is a lack of available treatments. This study demonstrates the need for more knowledgeable healthcare providers and medical information within the X-linked carrier community.

Ethical conundrums in pediatric genomics

Recent genomic discoveries have improved our understanding of many hematologic diseases and led to novel therapeutic options for many patients. The rapid decrease in the cost of genomic testing has enabled widespread use of clinical genomic testing. However, these advances are accompanied by concomitant challenging ethical concerns. In pediatrics, issues of informed consent for genomic testing, assent, and permission vary significantly by patient age and comprehension. Broader testing strategies, such as whole-exome or whole-genome sequencing, are more likely to yield incidental findings unrelated to the reason for the initial test, and plans to deal with these results when they occur are increasingly important. The lines of clinical care and research are becoming more blurry in the era of precision medicine in which approaches to individual genetic mutations (as opposed to disease phenotypes) occur with increased frequency. Finally, because justice is a fundamental ethical consideration, access to genomic testing and a rigorous approach to utility are critical to individual patients and the field of hematology. In this review, we use 3 cases of genomic testing in pediatric hematology to illustrate core ethical concerns and explore potential solutions.