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Related Experiment Video

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A Patient-Derived Xenograft Model for Venous Malformation

A Patient-Derived Xenograft Model for Venous Malformation

Published on: June 15, 2020

Linear vein-based arteriovenous malformations in children.

Cormac O Maher¹, R Michael Scott

¹Department of Neurosurgery, University of Michigan, Ann Arbor, Michigan48109-5338, USA. cmaher@mich.edu

Journal of Neurosurgery. Pediatrics

|July 3, 2009

Summary

A common pattern in pediatric arteriovenous malformations (AVMs) is a linear, vein-based morphology. Surgical treatment targeting this vein-based pattern can minimize disruption to the brain.

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The Arteriovenous (AV) Loop in a Small Animal Model to Study Angiogenesis and Vascularized Tissue Engineering

The Arteriovenous (AV) Loop in a Small Animal Model to Study Angiogenesis and Vascularized Tissue Engineering

Published on: November 2, 2016

Area of Science:

Neurosurgery
Pediatric Neurology
Vascular Malformations

Background:

Arteriovenous malformations (AVMs) are complex vascular anomalies.
Understanding the angioarchitecture of pediatric AVMs is crucial for surgical planning.
A specific linear, vein-based pattern has been observed in some pediatric AVMs.

Purpose of the Study:

To review surgical treatment outcomes for pediatric AVMs.
To analyze the angioarchitectural features of these AVMs.
To investigate the prevalence and implications of a linear vein-based AVM pattern.

Main Methods:

Retrospective review of pediatric AVM cases treated by a single surgeon over 15 years.
Inclusion criteria: pediatric age, pial AVM resection.
AVMs classified as linear-based if featuring a single, dominant linear vein.

Main Results:

Sixty-seven pediatric patients underwent AVM surgery.
46% of AVMs exhibited a linear, vein-based configuration.
Hemorrhage was the most common presentation (61%), followed by incidental findings (16%) and seizures (13%).
Recurrence occurred in 4 cases (6%) after initial complete resection.

Conclusions:

A linear vein-based morphology is a frequent characteristic of pediatric AVMs.
This pattern may reflect embryological development of cerebral circulation.
Vein-based surgical approaches offer a targeted strategy with minimal cortical disruption.