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Effect of the addition of a mental health specialist for evaluation of undiagnosed patients in centres for rare diseases (ZSE-DUO): a prospective, controlled trial with a two-phase cohort design

  • Helge Hebestreit*
  • , Anne Marie Lapstich
  • , Lilly Brandstetter
  • , ZSE-DUO Working Group
  • , Christian Krauth
  • , Jürgen Deckert
  • , Kirsten Haas
  • , Lisa Pfister
  • , Stefanie Witt
  • , Christopher Schippers
  • , Jan Dieris-Hirche
  • , Tim Maisch
  • , Oliver Tüscher
  • , Lavinia Bârlescu
  • , Alexandra Berger
  • , Mark Berneburg
  • , Vanessa Britz
  • , Anna Deibele
  • , Holm Graeßner
  • , Harald Gündel
  • Gereon Heuft, Thomas Lücke, Christine Mundlos, Julia Quitmann, Frank Rutsch, Katharina Schubert, Jörg Bernhard Schulz, Susann Schweiger, Cornelia Zeidler, Lena Zeltner, Martina de Zwaan
*Corresponding author for this work
  • University of Würzburg
  • Hannover Medical School
  • University Medical Center Hamburg-Eppendorf
  • Universitätsklinikum Aachen
  • LWL University Hospital
  • University of Regensburg
  • Johannes Gutenberg University Mainz
  • Ulm University
  • University Hospital Frankfurt am Main
  • Otto von Guericke University Magdeburg
  • University Hospital Tübingen
  • University Hospital Ulm
  • University Hospital Münster
  • Ruhr University Bochum
  • German Red Cross

Research output: Contribution to journalArticleAcademicpeer-review

3 Citations (Scopus)
12 Downloads (Pure)

Abstract

Background: 

People with complex symptomatology but unclear diagnosis presenting to a centre for rare diseases (CRD) may present with mental (co-)morbidity. We hypothesised that combining an expert in somatic medicine with a mental health specialist working in tandem will improve the diagnostic outcome. 

Methods: 

Patients aged 12 years and older who presented to one of the 11 participating German CRDs with an unknown diagnosis were recruited into this prospective cohort trial with a two-phase cohort design. From October 1, 2018 to September 30, 2019, participants were allocated to standard care (SC, N = 684), and from October 1, 2019 to January 31, 2021 to innovative care (IC, N = 695). The cohorts consisted mainly of adult participants with only a minority of children included (N = 67). IC included the involvement of a mental health specialist in all aspects of care (e.g., assessing medical records, clinic visits, telehealth care, and case conferences). Clinicaltrials.gov identifier: NCT03563677. 

Findings: 

The proportion of patients with diagnoses established within 12 months after the first visit to the CRD explaining the entire symptomatology (primary outcome) was 19% (N = 131 of 672) in the SC and 42% (N = 286 of 686) in the IC cohort (OR adjusted for centre effects 3.45 [95% CrI: 1.99–5.65]). The difference was mainly due to a higher prevalence of mental disorders and non-rare somatic diseases in the IC cohort. The median time to explaining diagnoses was one month shorter with IC (95% CrI: 1–2), and significantly more patients could be referred to local regular care in the IC (27.5%; N = 181 of 659) compared to the SC (12.3%; N = 81 of 658) cohort (OR adjusted for centre effects 2.70 [95% CrI: 2.02–3.60]). At 12-month follow-up, patient satisfaction with care was significantly higher in the IC compared to the SC cohort, while quality of life was not different between cohorts. 

Interpretation: 

Our findings suggested that including a mental health specialist in the entire evaluation process of CRDs for undiagnosed adolescents and adults should become an integral part of the assessment of individuals with a suspected rare disease. 

Original languageEnglish
Article number102260
JournalEClinicalMedicine
Volume65
DOIs
Publication statusPublished - Nov 2023

Bibliographical note

Publisher Copyright:
© 2023 The Author(s)

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 3 - Good Health and Well-being
    SDG 3 Good Health and Well-being

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