Ropivacaine Clinical Trial
Official title:
The Effect of the Body Temperature 0.75% Ropivacaine on the Time to Convert Labour Epidural Analgesia to Anaesthesia for Surgical Delivery
The purpose of this study is to determine weather using warmed (body temperature) 0.75% Ropivicaine to convert labour epidural analgesia to surgical anaesthesia, reduces the onset time of surgical block, compared to standard room temperature
In this prospective, randomised, controlled, double-blind study; parturients with functioning
labour epidural analgesia requiring conversion to anaesthesia for surgical delivery (SD) -
will be randomised into control and intervention groups: room temperature (RT) and body
temperature (BT). The control group (RT) will receive room temperature Ropivacaine 0.75%, as
is the standard practice. The treatment group (BT) will receive 0.75% Ropivicaine warmed up
to 37°C temperature. Block height will be assessed every 2 minutes by a blinded investigator
until the loss of sensation to cold at the level of T4, sensation to touch will be used as
second modality.
Primary outcome is the time to loss of sensation to cold at T4 bilaterally as assessed with
ethyl-chloride spray. Secondary outcomes will include motor block, haemodynamic stability,
and use of vasopressors, shivering, sweating, nausea, pruritus, body temperature,
intra-operative supplementation, and Apgar scores.
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