Psychological functioning in children suspected for mitochondrial disease: the need for care

Kim F E van de Loo1, José A E Custers2, Saskia Koene3,4

  • 1Radboud Institute for Health Sciences, Department of Medical Psychology, Radboud Center for Mitochondrial Medicine, Amalia Children's Hospital, Radboud University Medical Center, Geert Grooteplein Zuid 10, P.O. Box 9101, 6500HB, Nijmegen, The Netherlands. Kim.vandeLoo@radboudumc.nl.

Insights

Children suspected for mitochondrial diseases (MD) and their parents experience significant psychological distress and quality of life issues, regardless of diagnosis. This highlights the need for support for all children facing diagnostic uncertainty.

Area of Science:

  • Pediatric Neurology
  • Clinical Psychology
  • Genetics

Background:

  • Mitochondrial diseases (MD) are severe, inherited metabolic disorders often associated with anxiety, depression, and functional limitations.
  • The diagnostic journey for MD is complex and lengthy, causing significant uncertainty for patients and families.
  • Psychological well-being in children with suspected MD and their parents is a critical, yet often overlooked, aspect of care.

Purpose of the Study:

  • To investigate the psychological well-being of children with suspected mitochondrial diseases (MD).
  • To assess the impact of diagnostic uncertainty on the mental health of children and their parents.
  • To compare the psychological outcomes of children with confirmed MD, inconclusive results, and no diagnosis.

Main Methods:

  • A cohort of 122 children suspected for MD and their parents completed questionnaires during clinical investigation.
  • Parent proxy reports were used to assess quality of life, physical and behavioral problems, and parental stress.
  • Diagnostic outcomes were categorized into confirmed MD, inconclusive muscle biopsy, no diagnosis, or other diagnoses.

Main Results:

  • Parents reported lower quality of life, increased physical and behavioral problems (especially internalizing) in children compared to general and chronically ill populations.
  • Tiredness and pain were the most reported somatic complaints.
  • Children without a confirmed diagnosis showed similar quality of life and behavioral issues as those with a diagnosis, with even higher internalizing problems.

Conclusions:

  • Children with suspected MD experience significant psychological distress, impacting their quality of life.
  • The lack of a definitive diagnosis does not alleviate psychological burden; children without a diagnosis remain vulnerable.
  • Healthcare providers must address the psychological needs of all children undergoing MD investigation, irrespective of the diagnostic outcome.
Abstract

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