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 / never
Operating room
Intensive care unit
General ward

Coating of EVDs

Yes
No
Sometimes

4a. Do you use impregnated EVDs?

4b. If yes, which impregnation do you use?

Always / mostly / in about 50% / sometimes / never
Silver nanoparticles
Antibiotics
Other ______

4c. If you use antibiotic impregnation for EVDs, please tell us which antibiotic you use. ______

Methods for EVD implantation

Cordless drill
Trepan
Gimlet
Other ______

5a. What do you use for the burr hole?

Yes
No
Sometimes

5b. Do you fix the EVD at the burr hole?

Metal bracket
Other (what?) ______

5c. If yes, what do you use to fix the EVD at the burr hole?

Yes
No
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 ______

Yes
No
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 / never
Thread
Fixation bracket
Gypsum
Others ______

Prophylaxis of EVD-related infection

Yes
No
Sometimes

6a. Do you sample CSF while implanting the EVD?

Cell count
Protein
Microbiology

6b. If you sample CSF at that time, what do you examine?

Yes
No
Sometimes

6c. Do you give single-shot antibiotics?

6d. If you use single-shot antibiotics, which antibiotics do you use? ______

Yes
No
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 __

Yes
No
Sometimes

6i. Do you also give antibiotics after removal of the EVD?

Yes
No
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 hole
New 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? ______

Yes
No
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? ______

Aspiration
Irrigation
Other

6r. How do you restore patency of the EVD in case of blockage?

Yes
No
Sometimes

6s. Do you send the EVD tip for microbiological analysis after explantation?

Postoperative control

Yes
No
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 count
Protein
Microbiology

7c. If you collect CSF samples what do you examine?

Neurosurgeons
Anesthesiologist
Other doctor
Nurse

7d. If you collect CSF samples who will collect the samples?

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