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Published on: June 18, 2021
Spontaneous intracranial hemorrhage of structural origin during the first year of life
1Division of Neurosurgery, Children's Hospital of Eastern Ontario, Ottawa, Canada.
Insights
Structural lesions are rare but critical causes of symptomatic intracranial hemorrhage (ICH) in infants. Early diagnosis with advanced imaging and prompt surgical intervention improve outcomes for affected newborns.
Area of Science:
- Pediatric Neurology
- Neurosurgery
- Diagnostic Imaging
Background:
- Symptomatic intracranial hemorrhage (ICH) in term infants is uncommon, often attributed to trauma, coagulation disorders, or hypoxia.
- Structural causes for infantile ICH are frequently overlooked until late stages.
Observation:
- This paper details five term infants with ICH due to structural lesions within their first year of life.
- Lesions included a middle cerebral artery aneurysm, posterior fossa arteriovenous malformation, cavernous angioma, low-grade astrocytoma, and desmoplastic ganglioglioma.
- Diagnosis was primarily achieved through advanced neuroimaging (CT/MRI).
Findings:
- All five infants survived after surgical removal of the hematoma and causative lesion.
- Follow-up durations ranged from 3 to 19 years, indicating long-term survival.
- The study highlights the importance of considering structural etiologies in infantile ICH.
Implications:
- Contemporary imaging modalities are crucial for timely and accurate diagnosis of ICH in infants.
- Aggressive and prompt surgical treatment of structural lesions causing ICH can lead to favorable long-term outcomes.
- This case series contributes to the understanding of rare structural causes of ICH in infancy and their management.
Abstract:
Symptomatic intracranial hemorrhage (ICH) in term infants is not common, but when it occurs it is usually secondary to trauma, coagulation disorders and/or hypoxia. The possibility of a structural cause for an infantile ICH is unfortunately not seriously considered until very late. In this paper we report the cases of five full-term infants, each of whom developed ICH secondary to a structural lesion during the 1st year of life. Three presented during the newborn period. A congenital saccular aneurysm of the middle cerebral artery in an 8-month old male infant; a posterior fossa arteriovenous malformation in a 2-week old female neonate; a deep parietal cavernous angioma in a 6.5-month-old male infant; a temporoparietal low-grade astrocytoma in a 12-day old male neonate and a temporoparietal desmoplastic ganglioglioma in a 9-day-old male neonate were the structural lesions that were causative for hemorrhage. In all cases but one, the diagnosis was reached by computerized tomography and/or magnetic resonance imaging. All infants underwent surgery for the removal of the hematoma and of the lesion causative for the bleed. All are alive at 19, 3, 11.5, 10, and 5 years, respectively. We discuss the diagnosis of ICH with special emphasis on contemporary imaging modalities and stress the benefits of aggressive and timely surgical treatment. We then consider a concise analysis of the world literature on the occurrence of structural causes of ICH during infancy.
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