Investigating the Novel Observation of Right-left Difference in Uterine Artery Vascular Resistance in Pre-eclampsia

Summary

The investigators previously demonstrated that epidural ropivacaine reduces uterine artery vascular resistance in a dose dependent manner in pre-eclampsia. The investigators also noted a marked right-left difference in vascular resistance between paired uterine arteries, which was almost completely abolished following epidural ropivacaine. However, this novel observation was not a stated outcome variable before the study began. This study assesses right-left difference in vascular resistance between paired uterine arteries as a primary end-point, assesses the dose-response effect of epidural lidocaine and compares the effect observed in pre-eclampsia with that in two control populations (term normal pregnancy and non-pregnant controls).

Timeline

Start

2009-03

Primary completion

2009-10

Completion

2009-10

Publications

• Background Ginosar Y, Nadjari M, Hoffman A, Firman N, Davidson EM, Weiniger CF, Rosen L, Weissman C, Elchalal U; ACET study group. Antepartum continuous epidural ropivacaine therapy reduces uterine artery vascular resistance in pre-eclampsia: a randomized, dose-ranging, placebo-controlled study. Br J Anaesth. 2009 Mar;102(3):369-78. doi: 10.1093/bja/aen402. Epub 2009 Jan 27.

Drugs

Indications