Acute Pain
Conditions
Brief summary
To evaluate the analgesic efficacy of dexmedetomidine as adjuvants to levobupivacaine in erector spinae plane block in modified radical mastectomy surgery.
Detailed description
Premedication will be given, after complete fasting hours after applying standard monitors (noninvasive blood pressure, pulse oximetery, ECG, temperature and capnography), an intravenous cannula will be placed and secured. Ultrasound guided Erector spinae plane (ESP) block will be given with patient in sitting position depending on surgical site (left or right) ESP block will be given using high frequency linear u/s transducer, the probe is placed in longitudinal orientation lateral to thoracic fifth spinous process, then Trapezius muscle, Rhomboidus major muscle, and erector spinae muscle, are identified from surface, we deposite20 ml of 0.25% levobupivacaine into interfacial plane below erector spinae muscle. General anesthesia will be induced with fentanyl l μg /kg, propofol 2mg /kg, muscle relaxant (atracurium 0.5 mg/kg) inhalational anesthesia (isoflurane or sevoflurane) No other narcotic, analgesic or sedative will be administrated during operative period. Standard monitor (mean arterial blood pressure, heart rate , oxygen saturation & end-tidal Co2) will observed and recorded every 30 min till end of surgery Post-operative: The patient will be transferred to the post anesthesia care unit (PACU) and will be monitored for: 1. Vital signs (heart rate, noninvasive blood pressure, and oxygen saturation). 2. RASS score (Richmond Agitation & Sedation scale) with its +4:-5 score range will be used to assess sedation post-operative, considered sedation ≥-2 table (1) 3. Numerical Rating Score (NRS) pain score with its 0-10 score range will be used to assess pain immediately post-operative and then at 2, 4, 6, 8, 12,18and 24hour in the post-operative period figure (1). (4)Time and amount to request analgesia (PCA patient controlled analgesia morphine (demand dose 1-2 mg, lock out 6-10 min)) at NRS≥3. (5) Side effect of studied drugs as (hypotension, sedation , respiration depression and vomiting ) and complication of the block for 24h post- operative.
Interventions
Group (A) (control group): Patient will receive 20 ml 0.25% levobupivacaine into interfascial plane below erector spinae muscle at level of T5.
PROCEDUREerector spinae block with bupivacaine and dexmedetomidine
Patient will receive 20ml 0.25% levobupivacaine above + 1μ/kg dexmedetomidine into interfascial plane below erector spinae muscle at level of T5.
Sponsors
South Egypt Cancer Institute
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)
Eligibility
Sex/Gender
FEMALE
Age
25 Years to 70 Years
Healthy volunteers
No
Inclusion criteria
* female patient * American society of anesthesiologists (ASA) I and II physical status * age from 25 to 70 years old * scheduled for either left or right modified radical mastectomy (MRM).
Exclusion criteria
* infection of the skin at or near site of needle puncture, * coagulopathy, * drug hypersensitivity or allergy to the studied drugs, * central or peripheral neuropathy, * significant organ dysfunction cardiac dysrrhythmias, * obesity (BMI\>35kg/m2) * recently use analgesic drugs.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Analgesia required | 24 hours | time of first request for analgesia. |
Countries
Egypt
Contacts
Primary Contactpeter R Edward, MSc
Outcome results
None listed