Factors determining hydrocephalus after decompressive craniectomy: the role of interhemispheric hygroma - Report - MDSpire

Factors determining hydrocephalus after decompressive craniectomy: the role of interhemispheric hygroma

  • By

  • Andreea-Emanuela Baciu

  • Ana-M. Castaño León

  • Sofía Martínez Molina

  • Alfonso Lagares

  • June 22, 2026

  • 0 min

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Determinants of Hydrocephalus Following Decompressive Craniectomy

Overview

This study investigates the association between interhemispheric hygroma and the development of post-traumatic hydrocephalus (PTH) following decompressive craniectomy (DC).

Background

Post-traumatic hydrocephalus is a significant complication following decompressive craniectomy in patients with traumatic brain injury. Understanding the risk factors, particularly the role of interhemispheric hygroma, is crucial for postoperative management.

Data Highlights

VariableValue
Patients included104
Developed hydrocephalus52 (50%)
Median follow-up (months)13.9 (IQR 3.8–31.1)
Hygroma thickness OR (per mm)1.19 (95% CI 1.03–1.39)
Treated hydrocephalus OR (per mm)1.30 (95% CI 1.01–1.67)
AUC for ROC analysis0.81

Key Findings

  • 50% of patients developed radiological hydrocephalus after DC.
  • Interhemispheric hygroma thickness was significantly greater in patients with hydrocephalus.
  • Hygroma thickness was independently associated with the requirement for treatment of hydrocephalus.
  • A threshold of approximately 8 mm for hygroma thickness showed high sensitivity for predicting treatment needs.
  • Follow-up duration was significantly longer for patients with hydrocephalus requiring treatment.

Clinical Implications

Monitoring interhemispheric hygroma thickness may aid in identifying patients at risk for developing post-traumatic hydrocephalus after decompressive craniectomy.

Conclusion

Interhemispheric hygroma thickness is a relevant radiological marker for predicting post-traumatic hydrocephalus and treatment requirements following decompressive craniectomy.

Related Resources & Content

  1. Frontiers in Neurology, 2026 -- Clinical manifestations, progression and treatment of post-traumatic hydrocephalus accompanied by contralateral subdural effusion after decompressive craniectomy: a single-center retrospective study
  2. Springer, 2022 -- Is Decompressive Hemicraniectomy a Valid Approach Following Aneurysmal Subarachnoid Hemorrhage Considering Long-Term Outcomes?
  3. Springer, 2025 -- Surgical Intervention Timing for Chronic Subdural Hematoma in Patients Exhibiting Mild to Moderate Symptoms: A Retrospective Cohort Analysis
  4. Springer, 2023 -- Assessing Ventricular Measurements for Predicting Shunt Dependency Following Aneurysmal Subarachnoid Hemorrhage
  5. Guidelines for the Management of Severe Traumatic Brain Injury: 2020 Update of the Decompressive Craniectomy Recommendations
  6. Consensus-based recommendations for diagnosis and surgical management of cranioplasty and post-traumatic hydrocephalus from a European panel, 2024
  7. PubMed -- Post-craniectomy hydrocephalus in adult traumatic brain injury patients: a systematic review and meta-analysis of risk factors and outcome
  8. Guidelines for the Management of Severe Traumatic Brain Injury: 2020 Update of the Decompressive Craniectomy Recommendations
  9. Consensus-based recommendations for diagnosis and surgical management of cranioplasty and post-traumatic hydrocephalus from a European panel
  10. Post-craniectomy hydrocephalus in adult traumatic brain injury patients: a systematic review and meta-analysis of risk factors and outcome - PubMed

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