This study will involve the administration of levobupivicaine 0.125% and 0.25%, a local anaesthetic agent licensed for this purpose into the paravertebral space and into the surgical wound, to provide postoperative analgesia for adults having a mastecomy. We aim to compare the analgesia efficacy of paravertebral blockade with surgical wound blockade for post operative pain in the first 48 hours. MedDRA version: 14.0 Level: LLT Classification code 10054711 Term: Postoperative pain System Organ C
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: Adults (aged 18-80) presenting for elective mastectomy + axillary surgery ASA 1 to 3 Written informed consent Are the trial subjects under 18? no Number of subjects for this age range: F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range 45 F.1.3 Elderly (>=65 years) yes F.1.3.1 Number of subjects for this age range 45
Exclusion criteria
Exclusion criteria: Patient refusal Local infection at site of insertion Allergy to amide local anaesthetics, fentanyl, morphine, paracetamol, volatile anaesthetics Concurrent use of MAOIs or within 2 weeks of MAOI use Sepsis Systemic anticoagulation or coagulopathy Uncontrolled hypertension Uncontrolled Diabetes Mellitus Severe liver or cardiac dysfunction Inability to comprehend pain scoring system
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Main Objective: We aim to compare the analgesic efficacy of continuous paravertebral blockade and continuous wound infiltration with a control, for post operative pain in the first 48 post operative hours, following mastectomy and, in a randomised controlled single blinded clinical trial. Primary Measures: Total opiate usage in the first 48 hours after surgery ;Secondary Objective: Poorly controlled analgesia is associated with prolongation of hospital stay and increased morbidity. The use of paravertebral nerve blocks, wound catheters and morphine PCA's (patient controlled analgesia) are well established approaches to post operative analgesia. We plan to show that both paravertebral and wound catheters will provide very satisfactory analgesia post operatively. Morphine is associated with sedation, nausea, vomiting and itch. We plan to show a statistically significant decrease in these side effects in the paravertebral and wound infiltration groups. We will also look at patient satisfaction;Primary end point(s): Total opiate usage in the first 48 hours after surgery;Timepoint(s) of evaluation of this end point: 48 hours | — |
Secondary
| Measure | Time frame |
|---|---|
| Secondary end point(s): Severity of Postoperative Pain, [VAS and Categorical pain Scales] Sedation Postoperative nausea, vomiting and itch Patient Satisfaction ;Timepoint(s) of evaluation of this end point: 48 hours | — |
Countries
Ireland
Contacts
Department of Anaesthesia