Impact of congenital heart disease on personality disorders in adulthood.

BACKGROUND AND AIMS: Adults with congenital heart disease (ACHD) constitute an ever-growing patient population characterized by high risks for cardiovascular- and mental disorders. Personality disorders (PDs) are associated with adverse physical and mental health. Studies assessing PD prevalence in ACHD are lacking.

METHODS: PD point prevalence was assessed in 210 ACHD by Structured Clinical Interview for Axis-II Personality Disorders (SCID-II) and compared to meta-analytical data from the general population. Depression and anxiety were measured by self-report (Hospital Anxiety and Depression Scale, HADS) and clinician-rating (Montgomery-Åsberg depression rating scale, MADRS). Childhood maltreatment was assessed with the Childhood Trauma Questionnaire and quality-of-life (QOL) with the World Health Organization QOL Scale.

RESULTS: PD prevalence was markedly higher in ACHD compared to general population (28.1% vs. 7.7%). Particularly borderline (4.8% vs. 0.9%) and cluster C (i.e. anxious or fearful; 17.1% vs. 3.0%) PDs were overrepresented. PD diagnosis was associated with a surgery age ≤12 years (χ²(1)=7.861, φ=.195, p=.005) and higher childhood trauma levels (U=2583.5, Z=-3.585, p<.001). ACHD with PD reported higher anxiety (HADS-A: U=2116.0, Z=-5.723, p<.001) and depression (HADS-D: U=2254.5, Z=-5.392, p<.001; MADRS: U=2645.0, Z=-4.554, p<.001) levels and lower QOL (U=2538.5, Z=-4.723, p<.001).

CONCLUSIONS: PDs, particularly borderline- and cluster C, are significantly more frequent in ACHD compared to general population and associated with depression, anxiety and decreased QOL. Data from the general population suggest an association with adverse cardiometabolic and mental health. To ensure guideline-based treatment, clinicians should be aware of the increased PD risk in ACHD.