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. 2019 Feb;69(679):e112-e126.
doi: 10.3399/bjgp18X700205. Epub 2018 Nov 19.

Diagnosis and referral delays in primary care for oral squamous cell cancer: a systematic review

Ciaran Grafton-Clarke  1 , Kai Wen Chen  1 , Jane Wilcock  2
Affiliations

Diagnosis and referral delays in primary care for oral squamous cell cancer: a systematic review

Ciaran Grafton-Clarke et al. Br J Gen Pract. 2019 Feb.

Abstract

Background: The incidence of oral cancer is increasing. Guidance for oral cancer from the National Institute for Health and Care Excellence (NICE) is unique in recommending cross-primary care referral from GPs to dentists.

Aim: This review investigates knowledge about delays in the diagnosis of symptomatic oral squamous cell carcinoma (OSCC) in primary care.

Design and setting: An independent multi-investigator literature search strategy and an analysis of study methodologies using a modified data extraction tool based on Aarhus checklist criteria relevant to primary care.

Method: The authors conducted a focused systematic review involving document retrieval from five databases up to March 2018. Included were studies looking at OSCC diagnosis from when patients first accessed primary care up to referral, including length of delay and stage of disease at time of definitive diagnosis.

Results: From 538 records, 16 articles were eligible for full-text review. In the UK, more than 55% of patients with OSCC were referred by their GP, and 44% by their dentist. Rates of prescribing between dentists and GPs were similar, and both had similar delays in referral, though one study found greater delays attributed to dentists as they had undertaken dental procedures. On average, patients had two to three consultations before referral. Less than 50% of studies described the primary care aspect of referral in detail. There was no information on inter-GP-dentist referrals.

Conclusion: There is a need for primary care studies on OSCC diagnosis. There was no evidence that GPs performed less well than dentists, which calls into question the NICE cancer option to refer to dentists, particularly in the absence of robust auditable pathways.

Keywords: dentists; diagnostic delay; general practitioners; oral cancer; professional delay; referral; squamous cell cancer.

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Figures

Figure 1.
Figure 1.
PRISMA flow diagram. OSCC = oral squamous cell cancer.
See this image and copyright information in PMC

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