[Clarification of increased liver values in primary care - Findings from a series of studies from a general practitioner and specialist perspective].

introductionIn primary care, elevated liver values are often an incidental finding. In addition to observing symptoms, it is crucial for an effective clarification which liver values are included as indicators and when patients are referred for further diagnostics. It also depends on regular cooperation between general practitioner and specialist care level. So far, there has been a lack of reliable studies for German-speaking countries on the status quo with regard to the clarification of (unclear) elevated liver values in primary care. This overview article compresses the balance of an exploratory series of studies, the aim of which was to take stock of the general practitioner's diagnostics of (unclear) elevated liver values. Starting points for optimizing GP care are derived from the results. METHODS AND

participantsBetween 2017 and 2021, four written surveys of general practitioners and gastroenterological specialists were carried out in different federal states. The present study review discusses the overall findings in a condensed manner at a higher level, but also deals with specific findings.

resultsWhen it comes to clarifying elevated liver values, there are various challenges and problems in general practitioner care. For example, GPs use widely different liver-associated laboratory parameters (95% γ-GT, 65% AST, 63% ALT) that are bundled in different clusters. In the case of elevated liver values, the majority of general practitioners prefer to wait in a controlled manner (66%), but often make use of direct and early referrals to specialists in everyday practice due to diagnostic uncertainties (40%). When working with gastroenterological specialists, there are various interface problems, which, among other things, are associated with the GP's preliminary clarification and the time of referral. Both GPs and specialists see the introduction of a structured, evidence-based diagnostic algorithm as an important approach for improving early detection and better coordination between the levels of care (80% respective 85%). DISCUSSION: It makes sense to take measures that contribute to the professionalization and standardization of general practitioner diagnostics and better structure cooperation with gastroenterological specialists. These include, for example, a broader range of training and advanced training formats, the development of a validated diagnostic pathway or the permanent establishment of a liver value-associated blood test as part of the check-up. The development of a well-founded GP-based guideline for the detection and handling of elevated liver values also appears advisable.