Paediatrics (RCH) - Theses
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ItemVery often the answer's not black or white: current practice, clinician and parental experiences of genomic testing in paediatric genetics clinics( 2015)Developmental delay (DD) has been estimated to affect 1 – 3% of the population and the underlying cause often remains unknown. For parents, receiving a diagnosis for their child’s DD can be a source of validation, and may impact upon their child’s prognosis, treatment and access to available supports. New genetic technologies, chromosomal microarrays (CMA), are now used across Australia to help end the ‘diagnostic odyssey’ families often experience. CMA tests have the capacity to identify genetic changes at much higher resolutions than was previously possible, but may increase the complexity and uncertainty of results. There is no research into the process of these consultations and the way in which this information is communicated to patients attending a genetics clinic. Using qualitative techniques and guided by the frameworks of symbolic interactionism and interactional sociolinguistics, this study provides a rich and nuanced analysis of paediatric genetic consultations. A multi-layered approach was used, enabling investigations of both the ‘front stage’ (consultations) and ‘backstage’ (interviews with parents and clinicians) to facilitate and further understand emerging patterns. Four data sources were used: (1) pre-consultation surveys with parents (n=32); (2) audio-recordings from consultations (n=32); (3) post-consultation telephone interviews with parents (n=32); and (4) post-consultation interviews with clinical geneticists (n=10). Overwhelmingly, parents were complimentary regarding consultations and described feeling reassured. Those who were disappointed were largely parents who were desperate for a diagnosis. The vast majority of parents reported a positive relationship with the clinician and felt that the genetic information had been explained in a very useful manner. Clinicians described consultations as varied and dependent on many factors including parents’ hopes and diagnostic expectations. They identified their primary role as a diagnostician but also acknowledged the therapeutic benefits these consultations could provide to families. Clinicians displayed mixed opinions regarding new tests, appreciating the benefits while also wary of inherent complexities and uncertainties that more detailed genetic testing would bring. Seven phases were identified within consultations, and on average clinicians contributed more words than parents, however there was variation across and within consultations. Although content of consultations was extremely similar, clinicians appeared to have varied approaches, and different styles were described including the clinical assessment approach and conversational style. Some parents were able to describe their experiences of their child’s development as a ‘narrative’, while during other consultations clinicians seemingly had a checklist of closed questions. Most clinicians used an historical narrative to describe the evolution of genetic testing; comparing past and current limitations with the promise of future genomic technologies. Findings enabled the development of an ‘ideal’ consultation in this setting, which highlights the importance of a positive clinician-parent relationship, especially in light of diagnostic uncertainty and advancing genomic testing capabilities. Narrative medicine could play a valuable role both for parents and clinicians as they make sense of genomic testing and diagnostic uncertainty. With the impending introduction of whole genome sequencing into a clinical setting, now is an ideal time to reflect and learn from past and present experiences, in order to maximise the therapeutic potential of such scientific discoveries.