Supplementary table: EVD survey questionnaire
Total number of EVDs
1. How many EVDs were implanted in your hospital in the last calendar year?
Patient population
2. How many of the EVDs were implanted in patients
between 0-3 years of age _____ ≥ 4 years
Local implantation site for EVDs
3. Where do you usually implant the EVD?
Always / mostly / in about 50% / sometimes / neverOperating room
Intensive care unit
General ward
Coating of EVDs
YesNo
Sometimes
4a. Do you use impregnated EVDs?
4b. If yes, which impregnation do you use?
Always / mostly / in about 50% / sometimes / neverSilver nanoparticles
Antibiotics
Other ______
4c. If you use antibiotic impregnation for EVDs, please tell us which antibiotic you use. ______
Methods for EVD implantation
Cordless drillTrepan
Gimlet
Other ______
5a. What do you use for the burr hole?
YesNo
Sometimes
5b. Do you fix the EVD at the burr hole?
Metal bracketOther (what?) ______
5c. If yes, what do you use to fix the EVD at the burr hole?
YesNo
Sometimes
5d. Do you tunnel the EVD prior to externalization?
5e. If you tunnel the EVD, how far from the burr hole do you externalize it?
0-3 cm ______≥ 4 cm ______
YesNo
Sometimes
5f. Do you fix the EVD to the skin?
5e. If you fix the EVD to the skin, how do you do it?
Always / mostly / in about 50% / sometimes / neverThread
Fixation bracket
Gypsum
Others ______
Prophylaxis of EVD-related infection
YesNo
Sometimes
6a. Do you sample CSF while implanting the EVD?
Cell countProtein
Microbiology
6b. If you sample CSF at that time, what do you examine?
YesNo
Sometimes
6c. Do you give single-shot antibiotics?
6d. If you use single-shot antibiotics, which antibiotics do you use? ______
YesNo
Sometimes
6e. Do you use antibiotics postoperatively?
6f. If you use antibiotics postoperatively, which antibiotics do you use?______
6g. For how long do you use antibiotics postoperatively? ______
6h. In which intervals do you administer antibiotics postoperatively? weekly __ daily __
YesNo
Sometimes
6i. Do you also give antibiotics after removal of the EVD?
YesNo
Sometimes
6j. Do you perform routine replacements of the EVD?
6k. If yes, in which interval do you replace EVDs?
0-4 days ____ 5-9 days ____ ≥ 10 days ____
Same burr holeNew burr hole on same side
New burr hole on other side
6l. If yes, how do you handle the burr hole for replacements?
6m. For how long will the EVD remain in situ on average? ______
YesNo
Sometimes
6n. Do you change wound dressings regularly?
6o. If yes, in which intervals do you change wound dressings?
daily _____ every other day ______≥ 3 days
6p. How do you change wound dressings? dry _____ with desinfectant ______
6q. If you use a desinfectant, which one do you use? ______
AspirationIrrigation
Other
6r. How do you restore patency of the EVD in case of blockage?
YesNo
Sometimes
6s. Do you send the EVD tip for microbiological analysis after explantation?
Postoperative control
YesNo
Sometimes
7a. Do you collect CSF samples after implantation of the EVD?
7b. If yes, in which intervals do you collect CSF samples?
once only____ daily ____ weekly _____ irregularly _____
Cell countProtein
Microbiology
7c. If you collect CSF samples what do you examine?
NeurosurgeonsAnesthesiologist
Other doctor
Nurse
7d. If you collect CSF samples who will collect the samples?
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