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Войти в исследования Journal of neurosurgery. Pediatrics · 2026
Association of rurality with reduced shunt survival in child and young adult hydrocephalus: a prospective nationwide cohort from the Australasian Shunt Registry.
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Stuart Michael J, Wray Alison, Dexter Mark, Campbell Robert A J
Аннотация
OBJECTIVE: Patients with ventriculoperitoneal shunts have a lifelong risk of requiring revision procedures that may be time critical. Many of these patients reside distantly from neurosurgical services; however, the influence of this key sociodemographic factor on the outcomes of patients with ventriculoperitoneal shunts has not been previously studied. The Australasian Shunt Registry provides a rare opportunity to study the association of rurality with ventriculoperitoneal shunt outcomes across a large landmass with a broadly distributed population.
METHODS: Data were extracted from the Australasian Shunt Registry for all patients aged ≤ 25 years who underwent first-time ventriculoperitoneal shunt insertion from December 2016 to October 2024. The patient's postcode of residence was matched to the corresponding Modified Monash Model (MM) rurality index for that region. The metropolitan cohort was defined as all patients with MM 1, and the rural/regional cohort included all patients with MM ≥ 2. The primary outcome of interest was time from ventriculoperitoneal shunt insertion to first shunt revision (shunt survival).
RESULTS: At the conclusion of the study period, the Australasian Shunt Registry contained records for 5023 unique patients. After application of exclusion criteria, the resulting sample included 930 patients. The majority of these patients reside in a metropolitan MM1 area (617/930 [66%]). The cohorts were similar for demographic and clinical variables. The estimated mean shunt survival was 5.04 (95% CI 4.64-5.43) years for rural patients and 5.69 (95% CI 5.40-5.98) years for metropolitan patients (Wilcoxon test, p = 0.01). That effect remained statistically significant in the Cox proportional hazards model that included all variables that were significant on univariate analysis: a metropolitan address exerted a protective effect on overall shunt survival (HR 0.75, 95% CI 0.59-0.95, p = 0.02).
CONCLUSIONS: Rural/regional patients with ventriculoperitoneal shunts experienced reduced overall shunt survival when compared to metropolitan patients.
METHODS: Data were extracted from the Australasian Shunt Registry for all patients aged ≤ 25 years who underwent first-time ventriculoperitoneal shunt insertion from December 2016 to October 2024. The patient's postcode of residence was matched to the corresponding Modified Monash Model (MM) rurality index for that region. The metropolitan cohort was defined as all patients with MM 1, and the rural/regional cohort included all patients with MM ≥ 2. The primary outcome of interest was time from ventriculoperitoneal shunt insertion to first shunt revision (shunt survival).
RESULTS: At the conclusion of the study period, the Australasian Shunt Registry contained records for 5023 unique patients. After application of exclusion criteria, the resulting sample included 930 patients. The majority of these patients reside in a metropolitan MM1 area (617/930 [66%]). The cohorts were similar for demographic and clinical variables. The estimated mean shunt survival was 5.04 (95% CI 4.64-5.43) years for rural patients and 5.69 (95% CI 5.40-5.98) years for metropolitan patients (Wilcoxon test, p = 0.01). That effect remained statistically significant in the Cox proportional hazards model that included all variables that were significant on univariate analysis: a metropolitan address exerted a protective effect on overall shunt survival (HR 0.75, 95% CI 0.59-0.95, p = 0.02).
CONCLUSIONS: Rural/regional patients with ventriculoperitoneal shunts experienced reduced overall shunt survival when compared to metropolitan patients.