Prognostic Factors of Hemifacial Spasm after Microvascular Decompression
Journal of Korean Neurosurgical Society
;
: 336-340, 2009.
Article
in English
| WPRIM
| ID: wpr-10529
ABSTRACT
OBJECTIVE:
The factors that influence the prognosis of patients with hemifacial spasm (HFS) treated by microvascular decompression (MVD) have not been definitely established. We report a prospective study evaluating the prognostic factors in patients undergoing MVD for HFS.METHODS:
From January 2004 to September 2006, the authors prospectively studied a series of 293 patients who underwent MVD for HFS. We prospectively analyzed a number of variables in order to evaluate the predictive value of independent variables for the prognosis of patients undergoing MVD. The patients were followed-up at regular intervals and divided into as cured and unsatisfactory groups based on symptom relief. Uni- and multivariate analyses were performed using logistic regression models.RESULTS:
A total 273 of 293 (94.2%) patients achieved symptom relief within one year after the operation. Intraoperatively, the indentation of the root exit zone was observed in 259 (88.5%) patients. Uni- and multivariate analyses revealed that the symptoms at postoperative 3 months (p<0.001) and indentation of the root exit zone (p=0.036) were associated with good outcomes.CONCLUSION:
The intraoperative finding of root exit zone indentation will help physicians determine the prognosis in patients with HFS. To predict the prognosis of HFS, a regular follow-up period of at least 3 months following MVD should be required.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Prognosis
/
Logistic Models
/
Multivariate Analysis
/
Prospective Studies
/
Follow-Up Studies
/
Hemifacial Spasm
/
Microvascular Decompression Surgery
Type of study:
Observational study
/
Prognostic study
/
Risk factors
Limits:
Humans
Language:
English
Journal:
Journal of Korean Neurosurgical Society
Year:
2009
Type:
Article
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