Document Detail

Infratentorial empyema: analysis of 22 cases.
MedLine Citation:
PMID:  9402577     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: Infratentorial empyema is an uncommon form of intracranial suppuration that is usually secondary to neglected otogenic infection. The diagnosis is frequently delayed and often confused with that of meningitis. The associated mortality is distressingly high, yet it has, as a clinical entity, received scant attention in the literature. We present a 13-year experience of this condition. PATIENTS AND METHODS: From a retrospective analysis of 3865 patients with intracranial suppuration during a 13-year period, 22 patients with infratentorial empyema were identified. The inpatient notes for these patients were analyzed with reference to clinical, radiological, bacteriological, operative, and outcome data. RESULTS: Twenty-two patients with infratentorial empyema accounted for 0.6% of admissions caused by intracranial suppuration during the study period. Of these 22 empyemas, 13 were subdural and 9 epidural. Hydrocephalus was present in 17 (77.3%). Except for two epidural empyemas that did not warrant neurosurgical intervention, all patients underwent standard surgical management (wide posterior fossa craniectomy). Nineteen underwent mastoidectomy because the source of infection was otogenic. Concomitant and persistent hydrocephalus was treated aggressively. Five patients died (mortality rate of 22.7%). All fatalities had subdural empyemas, and all three patients with cerebellopontine angle extension of subdural purulent collections died. CONCLUSION: Although rare, infratentorial empyema, especially when subdural, is a lethal disease. Cerebellopontine angle extension of pus was a particularly ominous sign in our experience. Early surgical drainage via wide posterior fossa craniectomy, aggressive treatment of associated hydrocephalus, eradication of the primary source of sepsis, and, finally, intravenous high dosage of appropriate antibiotics form the mainstay of treatment.
N Nathoo; S S Nadvi; J R van Dellen
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Neurosurgery     Volume:  41     ISSN:  0148-396X     ISO Abbreviation:  Neurosurgery     Publication Date:  1997 Dec 
Date Detail:
Created Date:  1998-01-22     Completed Date:  1998-01-22     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  7802914     Medline TA:  Neurosurgery     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1263-8; discussion 1268-9     Citation Subset:  IM    
Department of Neurosurgery, University of Natal Medical School, Durban, South Africa.
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MeSH Terms
Cerebellar Diseases / physiopathology,  radiography,  surgery*
Child, Preschool
Empyema / physiopathology,  radiography,  surgery*
Middle Aged
Retrospective Studies
Tomography, X-Ray Computed
Treatment Outcome

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