Can patients be accurately assessed for familial hypercholesterolaemia in primary care?

Area of Science:

• Cardiology
• Genetics
• Primary Care Medicine

Background:

• Familial Hypercholesterolaemia (FH) is a common genetic disorder leading to premature coronary artery disease.
• The majority of individuals with FH remain undiagnosed, highlighting a gap in detection.
• Accurate identification in primary care is crucial for timely intervention.

Purpose of the Study:

• To evaluate the accuracy of general practitioners (GPs) in identifying individuals with FH in a primary care setting.
• To assess the utility of the Dutch Lipid Clinic Network Criteria scores (DLCNCS) for FH diagnosis by GPs.
• To determine if primary care physicians can effectively screen for FH.

Main Methods:

• A comparative study involving 153 individuals, assessing DLCNCS by GPs and specialists.
• Specialist review and genetic testing were performed for 30 individuals with DLCNCS ≥4.
• Clinical FH was defined as DLCNCS ≥6.

Main Results:

• GPs demonstrated high accuracy in classifying individuals with 'clinical FH' (86.7%) and 'unlikely FH' (94%) compared to specialists.
• High concordance (Lin's CCC = 0.832) and agreement (83.6%) were observed between GP and specialist DLCNCS assessments.
• Of those reviewed by specialists, 50% were diagnosed with clinical FH, and 26.7% had identified FH mutations, with GPs correctly classifying 80% of these cases.

Conclusions:

• GPs can accurately identify individuals at high and low risk of FH using the DLCNCS.
• Primary care-based screening using DLCNCS can augment opportunistic FH detection.
• Further education for GPs may further enhance diagnostic accuracy for FH in primary care settings.