Systolic heart murmur as first manifestation of high output heart failure due to the vein of galen malformation

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Abstract

The vein of Galen aneurysmal malformation (VGAM) is an extremely rare arteriovenous malformation. The VGAM clinical manifestations vary depending on the magnitude of vascular compromise and the age at initial presentation. Neonates typically present with severe congestive heart failure. Here we present a case in which a systolic heart murmur was the first manifestation of high output heart failure due to a VGAM.

Translated abstract

Las malformaciones de la vena cerebral de Galeno (MVG) son extremadamente raras. Sus manifestaciones clínicas varían dependiendo de la magnitud del compromiso vascular y la edad inicial de presentación. En neonatos, típicamente se presenta con una insuficiencia cardiaca congestiva grave. Se presenta un caso en el cual un soplo sistólico cardiaco fue la primera manifestación de una insuficiencia cardíaca de gasto alto secundaria a una malformación aneurismática de la vena de Galeno.

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Clinical course and medical management of neonates with severe cardiac failure related to vein of Galen malformation.

B Tress, P Frawley, P Dargaville … (2002)

Neonatal presentation of vein of Galen aneurysmal malformations (VGAMs) with intractable cardiac failure is considered a poor prognostic sign. Interventional neuroradiology with embolisation has been shown to control cardiac failure, but there is a perception that neurological outcome in survivors is poor. To determine if aggressive intensive care and anaesthetic management of cardiac failure before urgent embolisation can influence morbidity and mortality. Nine newborns (four boys, five girls) were diagnosed with symptomatic vein of Galen malformations in the neonatal period during the period 1996-2001. Eight developed intractable high output cardiac failure requiring initial endovascular treatment in the first week of life. The immediate outcome after a series of endovascular procedures was control of cardiac failure and normal neurological function in six (66%) patients, one death from intractable cardiac failure in the neonatal period, and two late deaths with severe hypoxic-ischaemic neurological injury (33% mortality). Clinical review at 6 months to 4 years of age showed five infants with no evidence of neurological abnormality or cardiac failure and one child with mild developmental delay (11%). Aggressive medical treatment of cardiac failure and early neurointervention combined with modern neuroanaesthetic care results in good survival rates with low morbidity even in cases of high risk VGAM presenting in the immediate perinatal period with cardiac failure. Systemic arterial vasodilators improve outcome in neonates with cardiac failure secondary to VGAM. Excessive beta adrenergic stimulation induced by conventional inotropic agents may exacerbate systemic hypoperfusion.

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Diagnosis and management of vein of galen aneurysmal malformations.

Rafael J. Tamargo, Mary X. D. O’Riordan, Philippe Gailloud … (2005)

Vein of Galen aneurysmal malformations (VGAM) are rare intracranial vascular anomalies typically found in children. The anatomic landmark of a VGAM is the presence of multiple arteriovenous shunts draining into a dilated median prosencephalic vein, an embryonic vessel normally absent at the adult stage. This article reviews the developmental anatomy, the clinical presentation, and the current management of VGAM.