Primary ciliary dyskinesia: age at diagnosis and symptom history

M E Coren1, M Meeks, I Morrison

  • 1Department of Paediatric Respiratory Medicine, Royal Brompton Hospital, London, UK.

Insights

Diagnosis of primary ciliary dyskinesia (PCD) is often delayed in children, even with early symptoms like neonatal respiratory distress and situs inversus. Early recognition of key features is crucial for timely diagnosis and management of PCD.

Area of Science:

  • Pediatric Pulmonology
  • Genetics
  • Rare Diseases

Background:

  • Primary ciliary dyskinesia (PCD) is a rare genetic disorder affecting cilia function.
  • Symptoms often manifest early in life, but diagnosis can be challenging.

Purpose of the Study:

  • To describe the age at diagnosis and symptom history in children with PCD.
  • To highlight key clinical features that warrant early referral for PCD testing.

Main Methods:

  • Retrospective review of case notes from a pediatric PCD clinic.
  • Analysis of symptom history and age at diagnosis in 55 children with PCD.

Main Results:

  • The mean age at diagnosis was 4.4 years.
  • A significant proportion of children presented with neonatal respiratory distress (37/55), situs inversus (38/55), and early-onset rhinitis (42/55).

Conclusions:

  • Diagnosis of PCD is frequently delayed despite characteristic early-life symptoms.
  • Combinations of neonatal respiratory distress, early rhinitis, situs inversus, and productive cough strongly indicate the need for prompt PCD-specific testing.
Abstract

Related Concept Videos

Cystic Fibrosis: Pathogenesis01:23

Cystic Fibrosis: Pathogenesis

Cystic fibrosis (CF), an autosomal recessive disorder, significantly affects the function of exocrine glands. This genetically inherited disease is characterized by the production of thick and sticky mucus, which can severely affect various organs and systems in the body.
CF is primarily caused by a genetic mutation in a chromosome 7 gene coding for the cystic fibrosis transmembrane conductance regulator (CFTR) protein. The most common gene mutation leading to CF is the ΔF508 mutation, but...
Chronic Obstructive Pulmonary Disease-I: Introduction01:20

Chronic Obstructive Pulmonary Disease-I: Introduction

Chronic Obstructive Pulmonary Disease (COPD) is a long-lasting respiratory condition requiring continuous attention and care. It is a progressive lung disease that leads to breathing challenges due to airflow obstruction. It manifests as persistent respiratory symptoms and restricted airflow resulting from abnormalities in the airways and alveoli, usually due to long-term exposure to harmful particles or gases. COPD mainly consists of two primary conditions: emphysema and chronic bronchitis.
Alzheimer Disease l: Introduction01:29

Alzheimer Disease l: Introduction

Alzheimer disease is a chronic, progressive, and irreversible neurodegenerative disorder and the most common cause of dementia in older adults. It leads to gradual neuronal loss, causing cognitive decline, behavioral changes, and loss of functional independence.Risk Factors and EtiologyThe disease is multifactorial. Age is the strongest risk factor, with prevalence doubling every 5 years after age 65. Genetic factors include mutations in genes such as APP, PSEN1, and PSEN2, which are associated...
Huntington Disease l: Introduction01:21

Huntington Disease l: Introduction

Huntington disease or HD is a progressive, fatal neurodegenerative disorder inherited in an autosomal dominant pattern.PathophysiologyIt is caused by expansion of the CAG trinucleotide repeat in the HTT gene on chromosome 4 (4p16.3), producing an abnormal huntingtin protein with an expanded polyglutamine tract. This misfolded protein disrupts cellular function, leading to neuronal death. Normal alleles have ≤26 repeats, 27–35 are intermediate (risk of expansion), 36–39 show reduced penetrance,...
Chronic Obstructive Pulmonary Disease I: Introduction01:23

Chronic Obstructive Pulmonary Disease I: Introduction

Chronic obstructive pulmonary disease is a common, preventable, and treatable respiratory disorder characterized by persistent symptoms and progressive airflow limitation. This limitation results from a combination of small-airway disease (obstructive bronchiolitis) and parenchymal destruction (emphysema), both driven by chronic inflammation from exposure to harmful particles or gases.The disease includes two main pathological entities: emphysema, marked by destruction of alveolar walls and...
Chronic Obstructive Pulmonary Disease III: Chronic Bronchitis Features01:24

Chronic Obstructive Pulmonary Disease III: Chronic Bronchitis Features

Chronic bronchitis is a key phenotype of chronic obstructive pulmonary disease (COPD), characterized by airway-centered inflammation and mucus overproduction. It develops from long-term exposure to harmful particles or gases, most commonly cigarette smoke, which triggers a persistent inflammatory response.Cellular and Structural ChangesInflammation initially affects the large bronchi and later the smaller airways, with infiltration by immune cells, including neutrophils, macrophages, and...