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A systematic review of the literature exploring the role of primary care in genetic services.

BACKGROUND
In response to growing demands on genetics departments and advances in genetic medicine, it has been proposed that primary care should provide a frontline service in clinical genetics. However, there are concerns that primary care may be unwilling or ill prepared to take on this new role.


OBJECTIVES
This study aimed to review systematically the literature exploring the role of primary care in delivering genetic services, and define potential methods of supporting primary care in the provision of genetics services.


METHODS
Seven electronic databases were searched. This was complemented by contacting experts in the field and handsearching reference lists. In total, 230 papers were identified, including traditional reviews, of which 96 were examined in detail. Fifty-one papers are included in this review. On account of the heterogeneity of papers identified, we conducted a qualitative synthesis of the results, focusing on five key questions.


RESULTS
GPs accept that they have an increasing role to play in genetics, but lack confidence in their ability to do so because of limited knowledge of clinical genetics. Evidence from pilot studies of cystic fibrosis screening provides the strongest evidence for the feasibility of providing genetic services in primary care.


CONCLUSIONS
Although genetic issues currently constitute a relatively small part of the overall workload in primary care, this will almost certainly change in the light of new genetic discoveries. Educational programmes and referral guidelines, computer decision support and genetic nurse specialist outreach clinics may provide useful methods of supporting GPs in the new field of primary care genetics.