“…18,57,68,108,110) Lumbar subarachnoid pressure is the most frequently measured 8,10,18,25,31,57,68,96,108,141) ; however, there are also studies measuring parenchymal pressure, 34,35) intraventricular pressure, 110) and epidural pressure. 109,113,127,131) The following 3 items are examined during the measurement. 1) Baseline ICP: The shunt procedure is effective in cases with high baseline ICP, and the threshold is approximately 90-200 mmH 2 O.…”