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Journal of Neurosurgical Sciences 2022 February;66(1):33-9

DOI: 10.23736/S0390-5616.19.04712-X


lingua: Inglese

Predicting endoscopic third ventriculostomy success in adult hydrocephalus: preliminary assessment of a modified ETV success score for adults (ETVSS-A) in a series of 47 patients

Sara BRUSCELLA, Domenico SOLARI , Teresa SOMMA, Marcello BARBATO, Michelangelo GANGEMI, Luigi M. CAVALLO

Division of Neurosurgery, Federico II University, Naples, Italy

BACKGROUND: Endoscopic third ventriculostomy is an established treatment for non-communicating hydrocephalus. In carefully selected patients, it can be adopted for the management of communicating variant; however controversy exists in regards to the definition of the appropriate candidates. Predictive score of Endoscopic Third Ventriculostomy Success (ETVSS) has been reported for pediatric and mixed populations only. Our purpose was to define an ETV success score for adult population (ETVSS-A), measuring the strength of correlation between preoperative score retrospectively evaluated and the success rates achieved in a class of adult patients.
METHODS: A retrospective analysis of 47 cases which received ETV procedure at our Institution between 2015 and 2018 was run. Demographic data,clinical history,preoperative and postoperative signs were reviewed and ETVSS-A was calculated.Thereafter ETVSS-A results were compared with the actual success rates.
RESULTS: Twenty-nine patients (61.7%) presented unchanged or improved clinical status with a mean ETVSS-A of 54.5%; 18 patients (38.3%) worsened with mean ETVSS-A of 37.7%. We found that age, type of hydrocephalus and symptoms of admission are each apart important factors in predicting ETV success: older patients and those with non-obstructive hydrocephalus had the lowest predicted ETV success. In patients in whom ETV was actually successful, the preoperative ETVSS-A was significantly higher as compared to those patients in whom we observed a poor surgical outcome.
CONCLUSIONS: From the results of this series, though small and retrospectively analyzed, it seems that ETVSS-A can be considered as a useful instrument to help neurosurgeon in predicting the ETV success and though define a more accurate surgical strategy in cases of hydrocephalus. Wider series and prospective studies are attended to validate these preliminary results.

KEY WORDS: Neuroendoscopy; Ventriculostomy; Cerebrospinal fluid; Normal pressure hydrocephalus; Neurologic gait disorders

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