Objectives (1) Evaluate the effectiveness of interventions designed to engage GPs and specialist secondary services in integrated palliative care; and (2) identify the personal, system and structural barriers and facilitators to integrated palliative care.

Method MEDLINE, EMBASE and CINAHL were searched. Any study of a service that engaged the GP with specialist secondary services in the provision of palliative care was included. GP engagement was defined as any organised cooperation between the GP and specialist secondary services in the care of the patient including shared consultations, case conferences that involved at least both the GP and the specialist clinician and/or other secondary services, and/or any formal shared care arrangements between the GP and specialist services. The specialist secondary service is either a specialist palliative service or a service providing specialist care to a palliative population. A narrative framework was used to describe the findings.

Results 17 studies were included. There is some evidence that integrated palliative care can reduce hospitalisations and maintain functional status. There are substantial barriers to providing integrated care. Principles and facilitators of the provision of integrated palliative care are discussed.

Conclusions This is an emerging field and further research is required assessing the effectiveness of different models of integrated palliative care.