Comparison of Clorotekal and Bupivacaine for Short Obstetric Surgery
Status:
Recruiting
Trial end date:
2022-08-31
Target enrollment:
Participant gender:
Summary
The following obstetric procedures are commonly performed with spinal anesthesia on labor and
delivery: bilateral tubal ligation, external cephalic version, cerclage insertion, cerclage
removal, minimally invasive fetal surgery, and evacuation of retained products of conception.
Bupivacaine is currently the standard spinal medication for these procedures because of its
long history of safe use, its low incidence of transient neurologic symptoms, and its ability
to provide a dependable, dense block with a high degree of maternal satisfaction. While
bupivacaine has the aforementioned advantages, it unfortunately has a long duration of
action, up to 240-380 minutes, which far exceeds the time necessary to complete most
obstetric procedures. Clorotekal®, the first Food and Drug Administration approved
chloroprocaine solution created for spinal injection, is a potential alternative. When
compared with bupivacaine spinals, chloroprocaine spinals have been shown to facilitate
clinically significant shorter times to resolution of motor and sensory block, first
ambulation, micturition, and discharge readiness. The objective of this study is to determine
if a strategy of spinal anesthesia with chloroprocaine will reduce the duration of motor
block, compared with equivalent block with hyperbaric bupivacaine..