Risk factors for failed reactivation of a labor epidural for postpartum tubal ligation: a prospective, observational study.
J Clin Anesth 2016;
35:221-224. [PMID:
27871526 DOI:
10.1016/j.jclinane.2016.08.004]
[Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Revised: 07/05/2016] [Accepted: 08/09/2016] [Indexed: 11/21/2022]
Abstract
STUDY OBJECTIVE
To determine specific risk factors that increase the failure rate of labor epidurals reactivated for use as a surgical block for postpartum tubal ligation.
DESIGN
Prospective, observational study.
SETTING
Labor and delivery suite and operating rooms at the Women and Infants Center.
PATIENTS
One hundred patients undergoing postpartum tubal ligation with an existing labor epidural that is documented to be within 2 cm of initial placement.
MEASUREMENTS
Body mass index, patient satisfaction with her epidural during labor and delivery, time from delivery to reactivation for tubal ligation, depth to loss of resistance, and the need for top-ups during labor were recorded preoperatively. Failure to reactivate was recorded and defined as any patient that (1) did not achieve a T6 level to pinprick, (2) had perceived pain (pain score >3) that required administration of an intravenous opioid or local anesthetic infiltration, or (3) required conversion to general anesthesia.
MAIN RESULTS
The overall success rate of reactivation was 78%. Significant risk factors for failure to reactivate were (1) poor patient satisfaction (P = .016), (2) increased time from delivery to reactivation (P = .044), and (3) the need for top-ups during labor and delivery (P = .032).
CONCLUSION
Poor satisfaction score of the epidural during labor and delivery, increasing time from delivery to epidural reactivation for tubal ligation, and the need for top-ups during labor and delivery increase the incidence of reactivation failure. No correlation was found with body mass index or loss of resistance and failure to reactivate.
Collapse