Related Experiment Video

Updated: Mar 17, 2026

Comprehensive Endovascular and Open Surgical Management of Cerebral Arteriovenous Malformations
14:58

Comprehensive Endovascular and Open Surgical Management of Cerebral Arteriovenous Malformations

Published on: October 20, 2017

10.4K

Dormant micro arteriovenous malformations lead to recurrent cerebral haemorrhage

Jun Cai1, Hao Lin1, Shaoxue Li1

  • 1Department of Neurosurgery, Hospital of Guangzhou University Mega Center, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, 510006 China.

Springerplus
|July 28, 2016
PubMed
Abstract

Insights

Detecting deep brain arteriovenous malformations (AVMs) can be challenging. Strategic timing of digital subtraction angiography (DSA) can reveal dormant, re-hemorrhagic AVMs missed in initial assessments.

Area of Science:

  • Neurology
  • Radiology
  • Neurosurgery

Background:

  • Deep brain micro arteriovenous malformations (AVMs) are often undetectable.
  • Optimal timing for AVM detection remains unclear.

Purpose of the Study:

  • To investigate the diagnostic challenges and timing for detecting deep brain AVMs.
  • To highlight the potential for delayed diagnosis of re-hemorrhagic AVMs.

Main Methods:

  • A case study of a 21-year-old male with intraventricular hemorrhage.
  • Serial digital subtraction angiographies (DSAs) performed at one week and one month post-hemorrhage showed no AVM.
  • Diagnosis and embolization of a micro AVM occurred three months after re-hemorrhage six years later.

Main Results:

  • Initial DSAs were negative, likely due to compressive effects of hematoma and spontaneous AVM obliteration.
  • Delayed DSA after re-hemorrhage successfully identified the micro AVM.
  • The patient recovered fully without neurological deficits.

Conclusions:

  • Strategic and timely use of DSA is crucial for identifying dormant, re-hemorrhagic AVMs.
  • Delayed imaging may be necessary for diagnosing certain AVMs presenting with hemorrhage.
Keywords:
Arteriovenous malformationsCerebral haemorrhageDigital subtraction angiography

More Related Videos

Pre-Chiasmatic, Single Injection of Autologous Blood to Induce Experimental Subarachnoid Hemorrhage in a Rat Model09:14

Pre-Chiasmatic, Single Injection of Autologous Blood to Induce Experimental Subarachnoid Hemorrhage in a Rat Model

Published on: June 18, 2021

2.9K
Adult Mouse Venous Hypertension Model: Common Carotid Artery to External Jugular Vein Anastomosis.08:27

Adult Mouse Venous Hypertension Model: Common Carotid Artery to External Jugular Vein Anastomosis.

Published on: January 27, 2015

14.8K

Related Concept Videos

Venous Thrombosis I: Introduction01:30

Venous Thrombosis I: Introduction

Venous thrombosis, the most common disorder of the veins, involves the formation of a thrombus or blood clot associated with vein inflammation. It can be classified as either superficial vein thrombosis or deep vein thrombosis.Superficial Vein Thrombosis: This involves the formation of a thrombus in a superficial vein, usually the greater or lesser saphenous vein. Though less severe than deep vein thrombosis (DVT), SVT can lead to complications if untreated.Deep Vein Thrombosis (DVT): This...
634
The Arch of Aorta01:10

The Arch of Aorta

The coronary arteries, originating from the ascending aorta, bifurcate from two sinuses located within the ascending aorta. Positioned just above the aortic semilunar valve, these sinuses house essential aortic baroreceptors and chemoreceptors, crucial for maintaining cardiac function. The left coronary artery and the right coronary artery branch off from the left posterior and anterior aortic sinuses, respectively.
Encircling the heart, the coronary arteries form a ring-like structure before...
2.2K