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The imbalance of CSF production/drainage induces hydrocephalus. AfterIVH, CSF drainage is impaired due to inflammation at the leptomeninges and likely causes changes in brain pulsatility.. CSF hypersecretion mainly occurs at the choroid plexus with possible blood-CSF barrier disruption and AQPs upregulation. IVH, intraventricular hemorrhage; CSF, cerebrospinal fluid; AQPs, aquaporins
