Dear Sylvia: Here's another from Pub Med on Prevention and Bone Dust:
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Sent on: Sat May 15 19:11:11 2010
Search: acoustic neuroma Post surgical headaches retrosigmoid
PubMed Results
Item 1 of 1
1. Am J Otol. 1996 Nov;17(6):904-8.
Prevention of headache after retrosigmoid removal of acoustic tumors.
Catalano PJ, Jacobowitz O, Post KD.
Department of Otolaryngology, Mount Sinai School of Medicine, New York, New York, USA.
Abstract
OBJECTIVE: To demonstrate a causal relationship between bone dust and the development of headache after retrosigmoid removal of acoustic neuromas. STUDY DESIGN: The study design was both retrospective (group I) and prospective (groups 2 and 3). SETTING: Tertiary Care Referral Center/Outpatient Data Collection. PATIENTS: Eighty-four consecutive patients underwent surgery at the Mount Sinai Medical Center in New York by the same surgical team. INTERVENTION: All patients underwent retrosigmoid removal of acoustic neuromas via the following methods: group 1, standard excision; group 2, excision and cranioplasty; group 3, excision, cranioplasty, and residue trapping. MAIN OUTCOME MEASURE: Presence or absence of postoperative headache. RESULTS: In all, 43 patients (51%) reported postoperative headache. By groups, headache incidence was 64% for group 1 (43% grade 3-4), 81% for group 2 (37% grade 3-4), and 10% (all grade 1) for group 3. Differences with respect to headache incidence and severity were statically significant between groups 1 and 3, and between groups 2 and 3 (p < 0.001). CONCLUSIONS: Free circulation of bone dust into the posterior fossa during intradural drilling of the internal auditory canal may be the most important factor in the development of headache after this surgical procedure.
PMID: 8915420 [PubMed - indexed for MEDLINE]
Publication Types:
Comparative Study
MeSH Terms:
Adolescent
Adult
Aged
Ear Neoplasms/pathology
Ear Neoplasms/surgery*
Female
Headache/etiology*
Headache/prevention & control*
Humans
Male
Middle Aged
Neuroma, Acoustic/pathology
Neuroma, Acoustic/surgery*
Postoperative Complications*
Severity of Illness Index
Tomography, X-Ray Computed
Treatment Outcome
Vestibulocochlear Nerve/pathology
Vestibulocochlear Nerve/surgery*