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Erschienen in: Child's Nervous System 8/2018

02.04.2018 | Original Paper

Early analysis of operative management of Chiari I malformation in pediatric cystic fibrosis patients

verfasst von: Derek C. Samples, Dewey J. Thoms, Izabela Tarasiewicz

Erschienen in: Child's Nervous System | Ausgabe 8/2018

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Abstract

Introduction

Chiari I malformation, defined as herniation of the cerebellar tonsils at least 5 mm below the foramen magnum, can result from congenital or acquired pathology. While the mechanism is not well understood, an association between Chiari I and cystic fibrosis has been described in the literature. The lifelong respiratory status management necessitated by cystic fibrosis creates a greater risk of Chiari symptomatology as well as post-operative CSF-related complications in the setting of duraplasty secondary to recurrent transient increases in intracranial pressure. We will review the literature, describe our experience with these patients, and propose bony decompression as an approach to treatment.

Methods

A retrospective review of pediatric patients treated at our institution with both cystic fibrosis and Chiari I was performed. Since our first case in 2016, our department has evaluated four patients carrying that dual diagnosis. All four underwent posterior fossa decompression surgery. Two patients had incidental pathology. Two symptomatic patients exhibited headaches and/or coordination difficulty. Half of the patients had associated syringomyelia. All patients were offered posterior fossa decompression utilizing intraoperative ultrasound.

Results

All four patients underwent posterior fossa decompression without duraplasty. Average operative time was 128 min. There were no complications post-operatively. Average hospital stay was 3.8 days. Average surgical length of stay was 2.3 days. Morbidity and mortality were 0%. The longest follow-up to date is 20 months. The two asymptomatic patients remained so post-operatively. The child with headaches and imbalance had complete resolution of his symptoms after surgery, as did the toddler with headaches. Both patients with syringomyelia demonstrated significant decrease in the size of their syrinxes on imaging performed at least 3 months post-operatively.

Conclusion

Based on the literature and our experience, we recommend considering posterior fossa decompression without duraplasty as treatment for pediatric cystic fibrosis patients with Chiari I malformation. This approach can be effective for symptomatic and prophylactic cases in this particular patient demographic because their comorbidities predispose them to Chiari pathology and symptomatology as well as certain post-operative complications.
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Metadaten
Titel
Early analysis of operative management of Chiari I malformation in pediatric cystic fibrosis patients
verfasst von
Derek C. Samples
Dewey J. Thoms
Izabela Tarasiewicz
Publikationsdatum
02.04.2018
Verlag
Springer Berlin Heidelberg
Erschienen in
Child's Nervous System / Ausgabe 8/2018
Print ISSN: 0256-7040
Elektronische ISSN: 1433-0350
DOI
https://doi.org/10.1007/s00381-018-3787-9

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