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Secondary Spinal Cord Injury llI: Pathophysiology01:25

Secondary Spinal Cord Injury llI: Pathophysiology

Early Ischemia and Ionic ImbalanceWithin minutes of spinal cord injury, a secondary cascade begins, progressing over hours to weeks. Vascular damage reduces blood flow, causing ischemia and mitochondrial dysfunction. ATP depletion leads to ion pump failure, membrane depolarization, sodium influx, potassium efflux, and water accumulation, resulting in cellular swelling. Increased intracellular calcium further disrupts mitochondria and accelerates cellular injury.Excitotoxicity and Neuronal...
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Spinal cord injury progresses through two interconnected phases: primary injury and secondary injury.Primary InjuryPrimary injury happens at the moment of trauma and involves immediate mechanical damage to the spinal cord.Compression happens when broken vertebrae, herniated discs, or accumulating blood (such as a hematoma) press directly against the spinal cord, distorting its normal shape and function. In cases of contusion, the cord is bruised by a blunt force (like penetrating injuries or...
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Vasogenic edema is a major form of cerebral edema characterized by abnormal accumulation of fluid in the brain’s extracellular space due to disruption of the blood–brain barrier (BBB). The BBB is a specialized structure composed of endothelial cells connected by tight junctions, supported by astrocytic endfeet and a basement membrane. Under normal conditions, it tightly regulates the movement of ions, proteins, and solutes between the bloodstream and brain parenchyma. When this barrier loses...
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Related Experiment Video

Updated: Jun 23, 2026

Enhancing the Development and Growth of Infant Cerebral Palsy Rats Using Selective Spinal Manipulations
05:04

Enhancing the Development and Growth of Infant Cerebral Palsy Rats Using Selective Spinal Manipulations

Published on: February 2, 2024

Cerebral palsy update.

Ingeborg Krägeloh-Mann1, Christine Cans

  • 1University Children's Hospital, Department of Paediatric Neurology and Developmental Medicine, Hoppe-Seyler-Str. 1, D-72076 Tübingen, Germany. ingeborg.kraegeloh-mann@med.uni-tuebingen.de

Brain & Development
|April 24, 2009
PubMed
Summary
This summary is machine-generated.

Cerebral palsy (CP) rates initially rose with increased preterm infant survival but have since declined for most low birthweight infants. However, extremely preterm infants still show concerning, stable CP prevalence.

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Area of Science:

  • Neurology
  • Developmental Pediatrics
  • Public Health

Background:

  • Cerebral palsy (CP) prevalence is influenced by birth weight and gestational age.
  • Improved survival rates in preterm infants have impacted CP incidence.
  • A common language and database for CP surveillance exist in Europe.

Purpose of the Study:

  • To analyze CP prevalence across European registers.
  • To investigate trends in CP rates related to birth weight and prematurity.
  • To explore the relationship between brain lesions, CP subtypes, and associated disabilities.

Main Methods:

  • Utilized a common language and database developed by the Surveillance of Cerebral Palsy in Europe (SCPE).
  • Conducted prevalence analyses on a large European dataset.
  • Examined the impact of birth weight and immaturity on CP rates over time.

Main Results:

  • CP prevalence increases with lower birth weight and higher immaturity.
  • Increased survival of preterm infants initially raised CP rates, but this trend reversed for LBW and VLBW infants in the 1980s and 1990s.
  • CP prevalence in extremely LBW or immature infants remains high and stable, a significant concern.

Conclusions:

  • CP is primarily caused by brain lesions or maldevelopment during critical periods of brain growth.
  • Brain lesion extent and location dictate CP subtype and associated disabilities.
  • The developing brain, particularly in language functions, shows some capacity for reorganization following injury, though this may impact other functions.