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Foramen magnum decompression for Chiari I malformation: a procedure not to be underestimated.
Br J Neurosurg. 2014 Jun; 28(3):330-4.BJ

Abstract

OBJECTIVE

Chiari I malformation may be treated with foramen magnum decompression (FMD). We aim to describe the symptoms with which patients initially present, and to determine the number and type of complications occurring after FMD for Chiari I malformation.

METHODS

Retrospective review of medical records for patients who had FMD performed for Chiari I malformation between January 2009 and December 2011. Post-operative outcomes were recorded and analysed. Patient demographic details and other relevant medical conditions were also noted.

RESULTS

Between January 2009 and December 2011, 54 FMDs were performed for Chiari I malformation. Among them, 40(74%) patients were female and 14 patients (26%) were male. The majority of patients (42.6%) were aged 16-39 years and 24.07% of patients were children aged < 16 years. A total of 30(55.6%) patients had documented evidence of a syrinx pre-operatively. 18(33.3%) patients developed complications. Nine of these developed multiple complications while nine had a single problem. One mortality was reported. Ten (18.5%) patients developed hydrocephalus requiring shunting. Two patients developed subdural collections requiring evacuation associated with hydrocephalus. Six (11.1%) patients developed post-operative infections: two CNS infections; one wound infection; and three other infections.

CONCLUSIONS

FMD for Chiari I malformation is a procedure which carries risk. In particular, the risk of developing post-operative hydrocephalus requiring permanent shunting is relatively high. ICP monitoring prior to FMD may be required to definitively rule out raised intracranial pressure.

Authors+Show Affiliations

Department of Neurosurgery, Beaumont Hospital , Dublin , Ireland.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

24066685

Citation

Duddy, John Charles, et al. "Foramen Magnum Decompression for Chiari I Malformation: a Procedure Not to Be Underestimated." British Journal of Neurosurgery, vol. 28, no. 3, 2014, pp. 330-4.
Duddy JC, Allcutt D, Crimmins D, et al. Foramen magnum decompression for Chiari I malformation: a procedure not to be underestimated. Br J Neurosurg. 2014;28(3):330-4.
Duddy, J. C., Allcutt, D., Crimmins, D., O'Brien, D., O'Brien, D. F., Rawluk, D., Sattar, M. T., Young, S., & Caird, J. (2014). Foramen magnum decompression for Chiari I malformation: a procedure not to be underestimated. British Journal of Neurosurgery, 28(3), 330-4. https://doi.org/10.3109/02688697.2013.841847
Duddy JC, et al. Foramen Magnum Decompression for Chiari I Malformation: a Procedure Not to Be Underestimated. Br J Neurosurg. 2014;28(3):330-4. PubMed PMID: 24066685.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Foramen magnum decompression for Chiari I malformation: a procedure not to be underestimated. AU - Duddy,John Charles, AU - Allcutt,David, AU - Crimmins,Darach, AU - O'Brien,David, AU - O'Brien,Donncha Finbarr, AU - Rawluk,Daniel, AU - Sattar,Mohammed Taufiq, AU - Young,Steven, AU - Caird,John, Y1 - 2013/09/25/ PY - 2013/9/27/entrez PY - 2013/9/27/pubmed PY - 2015/1/16/medline KW - Chiari I malformation KW - foramen magnum decompression KW - hydrocephalus KW - infection SP - 330 EP - 4 JF - British journal of neurosurgery JO - Br J Neurosurg VL - 28 IS - 3 N2 - OBJECTIVE: Chiari I malformation may be treated with foramen magnum decompression (FMD). We aim to describe the symptoms with which patients initially present, and to determine the number and type of complications occurring after FMD for Chiari I malformation. METHODS: Retrospective review of medical records for patients who had FMD performed for Chiari I malformation between January 2009 and December 2011. Post-operative outcomes were recorded and analysed. Patient demographic details and other relevant medical conditions were also noted. RESULTS: Between January 2009 and December 2011, 54 FMDs were performed for Chiari I malformation. Among them, 40(74%) patients were female and 14 patients (26%) were male. The majority of patients (42.6%) were aged 16-39 years and 24.07% of patients were children aged < 16 years. A total of 30(55.6%) patients had documented evidence of a syrinx pre-operatively. 18(33.3%) patients developed complications. Nine of these developed multiple complications while nine had a single problem. One mortality was reported. Ten (18.5%) patients developed hydrocephalus requiring shunting. Two patients developed subdural collections requiring evacuation associated with hydrocephalus. Six (11.1%) patients developed post-operative infections: two CNS infections; one wound infection; and three other infections. CONCLUSIONS: FMD for Chiari I malformation is a procedure which carries risk. In particular, the risk of developing post-operative hydrocephalus requiring permanent shunting is relatively high. ICP monitoring prior to FMD may be required to definitively rule out raised intracranial pressure. SN - 1360-046X UR - https://www.unboundmedicine.com/medline/citation/24066685/Foramen_magnum_decompression_for_Chiari_I_malformation:_a_procedure_not_to_be_underestimated_ L2 - https://www.tandfonline.com/doi/full/10.3109/02688697.2013.841847 DB - PRIME DP - Unbound Medicine ER -