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ARTERIOVENOUS MALFORMATION

THORACIC CARDIOVASCULAR SURGERY DEPARTEMENT OF SYIAH KUALA UNIVERSITY/dr. ZAINOEL ABIDIN GENERAL HOSPITALBANDA ACEHPresented By:Rizki Rahma Sari

Supervisor: dr. Suhardi, Sp. BTKVIntroductionAlthough rare, they can be fatalSome AVMs are discovered incidentally in asymptomatic individuals Widely accepted surgical treatments have significant risks (neurological deficits, death)

DefinitionA congenital shunt between the arterial and venous systemsA tangle of abnormal vessels (nidus)Vary in size and location

Epidemiology Incidence: about 1 per 100,000 per yearAVMs account for:1-2% of all strokes9% of subarachnoid hemorrhagesAnnual risk of hemorrhage from unruptured AVM: about 2% (poor data)PathogenesisPoorly understoodGenetic variation may play a role

Clinical ManifestationMost commonly present before age 40, some with more than one symptom:53% hemorrhage30% generalized seizure14% chronic headache10% focal seizures7% persistent neurological deficits5% progressive neurological deficitsAbout one-fifth are discovered incidentally in asymptomatic individuals

DiagnosisDiagnosis is made or confirmed by diagnostic imagingAngiography is considered the gold standard for diagnosis and treatment planning

Radiology ExamAngiographyCT scan contrassMRI cerebral/MRA

CT scan ContrassMRI cerebralabManagementMedical (medicine) therapySurgeryStereotactic radiosurgeryInterventional neuroradiology/endovascular neurosurgery

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