Study shows GPs need to be more open about cancer investigations

GPs should consider a more overt discussion with patients when referring them for further investigation of symptoms which may indicate cancer, according to a paper published in the British Journal of General Practice.

In an NIHR-funded study, researchers from the Universities of Bristol, Cambridge, Durham and Exeter conducted interviews with patients being referred for possible lung and colorectal cancer. They found that patients were rarely involved in the decision to be referred for investigation and that reasons for referral tended to be couched in non-specific terms rather than ‘cancer investigation’, even when the patient was on a cancer-specific pathway.

Dr Jon Banks, Research Programme Manager at the University of Bristol’s Centre for Academic Primary Care, said: “GPs face a difficult challenge when assessing whether to refer a patient for cancer investigation because many cancer symptoms are also caused by benign self-limiting illness. A GP referring a patient with symptoms indicating risk levels around 5 per cent may withhold discussion about cancer because they do not want to raise patient anxiety, and it is known that patients can find being referred for cancer particularly stressful.
However our research has shown that the ‘tipping point’ for discussing cancer alongside referral for investigation could be set too high. We suggest that the tipping point for discussing the possibility of cancer should be moved to a lower level of risk.”

NICE referral guidelines emphasise that the patient should be involved in the decision-making process and be informed of the reasons for referral. This is the first time that research has examined the extent to which these guidelines are borne out in practice.

The researchers found that problems can occur when a full dialogue about the referral is withheld and this lack of information about referrals led to concern among some patients when their referral was processed quickly on the two week wait pathway. The group also found a discrepancy between the aims of recent public health cancer awareness campaigns to encourage a cancer-based dialogue, and what is happening in clinical practice.

The research was based on transcripts of 34 interviews with patients. They had been identified by research nurses as having one of a number of specified respiratory and lower gastrointestinal (GI) symptoms potentially associated with lung and colorectal cancer, respectively.

Patients had been referred via two main pathways. The first was the fast-track, two-week wait route, whereby patients were expected to be seen by a cancer specialist within two weeks of referral, for which the patient would normally have met the symptom-based referral criteria in the NICE guidelines. The second route was via referral to a routine clinic, with a longer waiting time, at which the patient would not necessarily see a cancer specialist.

The patients was purposively sampled for individuals to interview who varied in relation to age, sex, education level, diagnosis, and referral pathway.