Local Anesthetic Infusion and Sternotomy
Cardiac surgery often induces acute postoperative pain and moreover chronic dysesthesia frequently occur long-term after sternotomy. The high doses of intraoperative opioïds are well known to enhance postoperative hyperalgesia (HA) and a perioperative local anesthetic agent infusion is one of the therapeutic strategies used to limit this phenomena. The aim of this study was to evaluate the effectiveness of a continuous Ropivacaïne sternal infusion compared with a saline serum infusion to limit postoperative HA, pain and morphine consumption (M) after sternotomy in cardiac surgery.
This strategy could lead to lower postoperative morphine consumption and opioïd induced hyperalgesia.
- Principal Objective: comparison of peri-incisionnal dynamic hyperalgesia extend evaluated by Von Frey filament during the first postoperative week between the two groups.
- Secondary Objective: comparison of peri-incisionnal static hyperalgesia (pain threshold) extend evaluated by Von Frey filament, postoperative pain scores, morphine consumption, hemodynamic and respiratory parameters during the first postoperative week and incidence of chronic pain and dysesthesia at six month between the two groups. Ropivacaïne plasmatic concentration will be monitored, during infusion.
- Study design : monocentric, double blind randomized clinical trial comparing two groups of patients with a same intraoperative anesthetic management :
- Group 1: Ropivacaïne infiltration before skin incision followed by a 48 hours Ropivacaïne continuous infusion after surgery through a sternal fenestrated catheter
- Group 2: same protocol with pre and postoperative saline infusion
Postoperative pain management is identical in the two groups based upon a Morphine sulfate PCA pump for the first 48 hours.
• Number of subjects : 40 patients, 20 in each group
Allocation: Randomized, Control: Placebo Control, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Primary Purpose: Treatment
Local anesthetic (Ropivacaine), Saline
Département d'Anesthésie-Réanimation II - Hôpital cardiologique - Groupe Hospitalier Sud, CHU de Bordeaux - 4, Av de Magella
University Hospital, Bordeaux
Results (where available)
- Source: http://clinicaltrials.gov/show/NCT00802048
- Information obtained from ClinicalTrials.gov on July 15, 2010
Objective: To determine a minimally effective initial local anesthetic bolus required to provide satisfactory analgesia using continuous brachial plexus infusion following arthroscopic sho...
In this multicenter, randomised, placebo-controlled, double-blind trial, hyperalgesia area around the scarce following colorectal laparoscopic surgery (piece removal) will be assessed in 3...
High-volume infiltration analgesia may be effective in postoperative pain management following total hip arthroplasty. In this randomized, double-blind trial patients undergoing bilateral ...
Posterior lumbar arthrodesis causes severe postoperative pain, hampering patients's postoperative reconvalescence especially functional rehabilitation. Efficient and safe methods for posto...
Ropivacaine 0.5% and 0.5% in levobupivacaïne are used in regional anesthesia for major surgery of the foot. The literature does not highlight a significant difference in terms of onset of...
The aim of this prospective double blind randomized clinical trial was to determine whether preperitoneal continuous wound infusion (CWI) of the local anesthetic ropivacaine after either laparotomy or...
In this study, we determined the plasma concentration of ropivacaine by liquid chromatography-mass spectrometry for 30 hours after local infiltration analgesia in 15 patients with elective hip arthrop...
The aim of the study was to develop a polyester visceral implant modified with a cyclodextrin polymer for the local and prolonged delivery of ropivacaine to reduce post operatory pain. Therefore, we a...
We report the case of a 25-year-old female scheduled for laparoscopic gynecologic surgery under general anesthesia. At the end of laparoscopy, an intraperitoneal infiltration (ropivacaine 0.75%, 20 ...
The basis for the transversus abdominis plane (TAP) block involves infiltration of a local anesthetic into the neurofascial plane between the internal oblique and the transversus abdominis muscles, ca...
Medical and Biotech [MESH] Definitions
An increased sensation to painful stimuli that may follow damage to soft tissue containing NOCICEPTORS or injury to a peripheral nerve. Hyperalgesia can occur both at the site of tissue damage (primary hyperalgesia) and in the surrounding undamaged areas (secondary hyperalgesia). (Kandel et al., Principles of Neural Science, 3d ed, p386)
A local anesthetic of the amide type now generally used for surface anesthesia. It is one of the most potent and toxic of the long-acting local anesthetics and its parenteral use is restricted to spinal anesthesia. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1006)
A widely used local anesthetic agent.
Acetanilide derivative used as a local anesthetic.
A thiophene-containing local anesthetic pharmacologically similar to MEPIVACAINE.