Supplemental Table 1. Survey questions and no. of respondents
Question No. respondents
(N=84) 1. Do you use intravenous (IV) remifentanil for labor analgesia?
No (If no, please skip to question #13)
Yes 54
30 2. Which women are eligible for remifentanil?
All women
Women with a contraindication to neuraxial analgesia Other (please specify)
4 26 3. What is your standard way of administering remifentanil?
Continuous infusion only Bolus (PCA) only
Continuous infusion & bolus
4 16 10 4. When is remifentanil discontinued?
Prior to the start of the 2nd stage of labor
After the start of the 2nd stage of labor, but before delivery of the neonate After delivery of the neonate
2 13 15 5. Who prepares the remifentanil?
Pharmacy
Physician – either house staff or attending anesthesiologist 20 10 6. Which of the following delivery pumps are you using? (check all that apply)
Smiths Medical CADD-Prizm Smiths Medical CADD-Solis B. Braun BodyGuard Moog’s Curlin Other
1 7 4 0 17 7. Is one-to-one nursing care required for women using remifentanil in labor?
Yes
No 19
11 8. Which maternal parameters are recorded at regular intervals for women using remifentanil in
labor? (check all that apply) Sedation score Oxygen saturation Pulse
ET-CO2 Blood pressure Pain score
19 26 26 3 26 26 9. Do you routinely give oxygen to women using remifentanil in labor?
No
Yes 15
15 10. Have there been any instances at your institution of maternal respiratory depression and/or
arrest in women using remifentanil for labor analgesia?
No
Yes (please specify) 23
7 11. Have there been any instances of fetal complications attributed to remifentanil use?
No
Yes (please specify) 25
5
Supplemental Table 1. Continued
12. To the best of your knowledge, IV remifentanil was used in the last 12 months:
< 5 times 5 – 10 times 10 – 20 times
> 20 times
15 11 4 0 13. Do you use any other IV analgesics for labor analgesia?
No
Yes (please specify) 16
67 14. Is nitrous oxide available in your labor rooms?
No
Yes 72
12 15. What is the rate of neuraxial labor analgesia in your unit?
< 50%
50 – 80%
> 80%
5 31 48 16. What is the annual delivery rate in your unit?
< 5000 5000 - 10,000
> 10,000
59 21 4
