Medical Student Universidade de Pernambuco, Pernambuco, Brazil
Introduction: The external-subgaleal ventricular shunt (ESVS) is a crucial intervention for temporarily treating hydrocephalus, allowing for cerebrospinal fluid drainage and relieving intracranial pressure. In Brazil, the Unified Health System (SUS) provides detailed data on this procedure, enabling studies on its temporal and geographical distribution. This study examines the number of ESVS procedures performed in Brazilian capitals from 2008 to 2024, aiming to identify growth trends and significant regional variations. The findings offer insights for public health resource planning.
Methods: Data from the SUS Hospital Information System (SIH/SUS) on ESVS procedures between January 2008 and August 2024 were used. The total number of Hospitalization Authorization (AIH) records was analyzed by capital and year. Changes in facility classification from 2012 and 2015 were adjusted according to system technical notes. Statistical analysis included mean, standard deviation, and linear trend tests to assess annual behavior and the significance of regional variations (p < 0.05).
Results: During the study period, 116,641 ESVS procedures were recorded, with an annual average of 6,868 procedures (SD = 1,016). There was significant growth until 2017, peaking at 7,825 procedures (p < 0.05), followed by a slight decline post-2022. Regional analysis revealed significant disparities: Salvador registered 8,743 procedures and São Paulo 8,132, while Macapá had the lowest count (10 procedures), indicating pronounced regional differences (p < 0.01).
Conclusion : The increase in ESVS procedures over the years highlights a growing demand for this intervention in Brazil, with considerable variations among capitals, reflecting regional inequalities. The rise until 2017 and subsequent stabilization suggests a consolidated pattern, with vulnerable areas remaining. These variations underscore the need for redistributive planning to ensure more equitable access to hydrocephalus treatment, supporting necessary adjustments in health policies for a more efficient SUS.
.jpg)