TABLE 1:

Diagnosis, age, and time between D_av measurement and treatment in patients with hydrocephalus

Patient	Diagnosis	Age, y	Time Between First Measurement and Treatment, d	Time Between Second Measurement and Treatment, d
1	Choroid plexus papilloma	0.2	3	3
2	Vein of Galen malformation	0.5	9	4
3	Pineal tumor	1.5	1	3
4	Choroid plexus papilloma	2.0	2	6
5	Medulloblastoma	2.1	0*	2
6	Juvenile pilocytic astrocytoma	3.1	2	0*
7	Medulloblastoma	3.4	1	11
8	Subependymal giant cell astrocytoma	4.2	4	2
9	Diencephalic cyst	5.6	2	3
10	Juvenile pilocytic astrocytoma	7.1	0*	1
11	Ependymoma	8.0	1	0*
12	Cerebellar astrocytoma	8.8	1	2
13	Medulloblastoma	8.9	13	5
14	Medulloblastoma	9.2	1	1
15	Juvenile pilocytic astrocytoma	11.3	1	3
16	Hypothalamic glioma	13.9	1	8
17	Aqueduct stenosis	15.9	4	1
18	Aqueduct stenosis	19.6	2	1
19	Primary glioma	22.0	1	0*
20	Aqueduct stenosis	50.4	9	1
21	Colloid cyst of third ventricle	67.5	6	2
Mean		12.6	3.0	2.8
SD		16.8	3.4	2.8

^*Same day.