Related Experiment Video
Updated: Apr 28, 2026

Modeling Posthemorrhagic Hydrocephalus of Prematurity in Rats
Published on: March 28, 2025
Infantile hydrocephalus: a review of epidemiology, classification and causes
Hannah M Tully1, William B Dobyns2
1Department of Neurology, University of Washington, Seattle, WA, USA; Center for Integrative Brain Research, Seattle Children's Research Institute, Seattle, WA, USA.
Insights
Infantile hydrocephalus, a complex condition of cerebrospinal fluid (CSF) flow obstruction, affects 1.1 in 1000 infants. This review outlines its causes, classification, and pathogenesis to aid assessment and research.
Area of Science:
- Pediatrics
- Neurology
- Developmental Biology
Background:
- Hydrocephalus is a complex condition characterized by cerebrospinal fluid (CSF) flow obstruction and progressive ventricular dilatation.
- Affecting approximately 1.1 in 1000 infants, infantile hydrocephalus presents significant diagnostic and research challenges due to limited systematic cause assessments.
- Understanding the multifaceted origins of this condition is crucial for both clinical management and scientific inquiry.
Purpose of the Study:
- To systematically review the contemporary literature on the epidemiology, classification, and pathogenesis of infantile hydrocephalus.
- To delineate the major environmental and genetic factors contributing to the development of hydrocephalus in infants.
- To provide a comprehensive framework for assessing infants with hydrocephalus and to guide future research directions.
Main Methods:
- Systematic literature review of contemporary research on infantile hydrocephalus.
- Analysis of epidemiological data, focusing on incidence and prevalence in infants.
- Synthesis of information on the classification and pathogenesis, including genetic and environmental etiologies.
Main Results:
- Hydrocephalus is defined by obstruction of cerebrospinal fluid (CSF) flow, leading to ventricular enlargement.
- Key causes encompass a range of environmental influences and genetic predispositions.
- The review synthesizes current knowledge on incidence, classification systems, and underlying pathological mechanisms.
Conclusions:
- Infantile hydrocephalus is a significant pediatric neurological condition with diverse etiologies.
- A structured understanding of its epidemiology, classification, and pathogenesis is essential for effective clinical practice.
- This review provides a foundational framework to enhance infant hydrocephalus assessment and stimulate further scientific investigation.
Abstract:
Hydrocephalus is a common but complex condition caused by physical or functional obstruction of CSF flow that leads to progressive ventricular dilatation. Though hydrocephalus was recently estimated to affect 1.1 in 1000 infants, there have been few systematic assessments of the causes of hydrocephalus in this age group, which makes it a challenging condition to approach as a scientist or as a clinician. Here, we review contemporary literature on the epidemiology, classification and pathogenesis of infantile hydrocephalus. We describe the major environmental and genetic causes of hydrocephalus, with the goal of providing a framework to assess infants with hydrocephalus and guide future research.
More Related Videos
Related Concept Videos
Encephalitis l: Introduction
Epilepsy ll: Types
Increased Intracranial Pressure l: Introduction
Cerebral Edema ll: Pathophysiology
Cerebral Edema l: Introduction
Seizures: Classification
Seizures are typically classified into two main categories: focal and generalized seizures.
Focal Seizures
Focal seizures originate from specific regions of the brain. These seizures are further sub-classified into two types:

