{Reference Type}: Case Reports {Title}: Telemetric monitoring in idiopathic intracranial hypertension demonstrates intracranial pressure in a case with sight-threatening disease. {Author}: Mitchell JL;Mollan SP;Tsermoulas G;Sinclair AJ; {Journal}: Acta Neurochir (Wien) {Volume}: 163 {Issue}: 3 {Year}: 03 2021 {Factor}: 2.816 {DOI}: 10.1007/s00701-020-04640-y {Abstract}: The understanding of raised intracranial pressure (ICP) is increasing with the directed use of intracranial telemetric ICP monitors. This case uniquely observed ICP changes by telemetric monitoring in a patient with idiopathic intracranial hypertension (IIH), who developed rapid sight-threatening disease. A lumbar drain was inserted, as a temporising measure, and was clamped prior to surgery. This resulted in a rapid rise in ICP, which normalised after insertion of a ventriculoperitoneal shunt. This case highlighted the utility of the ICP monitor and the lumbar drain as a temporising measure to control ICP prior to a definitive procedure as recommended by the IIH consensus guidelines.