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The safest and most effective drainage method remains controversial, and most available studies are limited to single-center retrospective analyses, often constrained by small sample sizes. Therefore, multicenter prospective studies are needed to determine the optimal treatment strategy.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>This is a prospective, multicenter cohort study conducted across more than 20 pediatric neurosurgery centers in Latin America. Patients will be allocated into four groups according to the treatment selected for hydrocephalus (ETV, EVD, VPS, or resection). The primary outcome will be the number of surgical interventions related to the treatment of hydrocephalus during the follow-up period. Secondary outcomes will include mortality, infection, and other clinically relevant complications, analyzed as complementary endpoints. Patients will be followed prospectively for up to 12\u00a0months after the index procedure, defined as the intervention performed for the treatment of hydrocephalus, and each group will include at least 50 patients.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>The REDCap online platform will be used for data collection in the PITCH study, enabling prospective data acquisition across multiple centers in Latin America. This will allow comparison of treatment modalities for obstructive hydrocephalus secondary to posterior fossa tumors (ETV, EVD, VPS, and resection) and evaluation of their impact during the first year after diagnosis.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1007\/s00381-026-07282-0","type":"journal-article","created":{"date-parts":[[2026,5,8]],"date-time":"2026-05-08T07:30:10Z","timestamp":1778225410000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["PITCH (pediatric infratentorial tumors \u2013 hydrocephalus-related complications) registry study design: observational, prospective, multicenter study evaluating the number of surgeries associated with the treatment of hydrocephalus secondary to infratentorial tumors in childhood and adolescence"],"prefix":"10.1007","volume":"42","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3552-6347","authenticated-orcid":false,"given":"Marcos Devanir 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