[Understanding the diagnostic delay in rare diseases].

Area of Science:

• Medical Science
• Public Health

Background:

• Rare diseases are defined in the EU as conditions affecting 5/10,000 people.
• An estimated 6000-8000 rare diseases exist, impacting 6-8% of the global population.
• In the Netherlands, approximately 1 million individuals are affected by a rare disease.

Purpose of the Study:

• To map the diagnostic journey for patients with rare diseases.
• To identify delays in the diagnosis of rare diseases.
• To propose recommendations for accelerating the diagnostic process.

Main Methods:

• Analysis of data from the research report 'Scherperzicht op diagnostischevertragingbijzeldzameaandoeningen'.
• Mapping the diagnostic pathways of patients with rare diseases.
• Statistical analysis of diagnostic timelines.

Main Results:

• Patients with rare diseases often experience prolonged and uncertain diagnostic journeys.
• The initial symptoms of 75% of rare diseases manifest in childhood.
• The study quantifies diagnostic delays within the rare disease population.

Conclusions:

• The diagnostic process for rare diseases requires significant improvement.
• Expediting diagnosis is crucial, especially given that most rare diseases present in childhood.
• Recommendations are provided to shorten the diagnostic odyssey for rare disease patients.