Table 2.

Lists of 13 infected cases

cases	sex	age*1	pathography	shunt	operation before	symptom	onset time after shunt	bacteria	treatment	outcome
1	male	57	ventriclar neoplasms	V-P	resection	coma,fever	23 days	epidermidis Staphylococcus	remove shunt device	bad
2	male	65	none	V-P	none	fever	2 months	Staphylococcus sciuri	antibiotics	good
3	male	26	head injury	V-P	hematoma evacuation	fever,obstruction	5 days	Staphylococcus aureus	lumbar darinage	bad
4	male	39	none	V-P	external ventricular drainage	headache	22 days	not clear	take out peritoneal tube	bad
5	female	23	head injury	L-P	hematoma evacuation, lumbar drainage	fever	16 days	Baumanii	antibiotics	good
6	male	49	head injury	V-P	debridment, hematoma evacuatiom	fever	1 months	Staphylococcus capitis	remove shunt device	good
7	male	45	head injury	V-P	none	peritonitis,headache	4 months*2	not clear	remove shunt device	good
8	female	51	none	V-P	none	shunt exposed,pus	2 months	not clear	debridment	good
9	male	34	head injury	V-P	hematoma evacuatiom	fever,obstruction	6 days	Staphylococcus anreus	lumbar darinage	bad
10	male	64	head injury	V-P	hematoma evacuatiom	fever,peritonitis	8 days	Enterococcus faecium	remove shunt device,ventriculo-artial shunt	good
11	male	43	cerebellar hemorrhage,AVM	V-P	external ventricular drainage,posterior fossa decompression	fever	10 days	Staphylococcus aureus	antibiotics	bad
12	male	37	head injury	L-P	hematoma evacuatiom	headache	2 months	Staphylococcus aureus	remove shunt device,debridment,V-P	good
13	female	54	none	V-P	none	fever,shunt exposed	20 days	epidermidis Staphylococcus	remove shunt device	good

*1: The unit for age is year

*2: In this case, an appendicitis was diagnosed and underwent an appendectomy 10 days before the onset time