The hypothesis is whether perineural dexamethasone and dexmedetomidine prolonged the duration of analgesia as compared with either perineural dexamethasone or perineural dexmedetomidine after TPVB.
Design: A prospective, randomized, controlled study Setting: Single-center university hospital. Participants: The study included 90 patients undergoing lobectomy under general anesthesia. Interventions: The patients were allocated randomly into the following 3 groups: 20 ml mixture of 37.5 mg ropivacaine with 5 mg dexamethasone (RS group) or 1 µg/kg dexmedetomidine (RM group), or with 1 µg/kg dexmedetomidine and 5 mg dexamethasone (RSM group). Ultrasound-guided TPVB was performed at 4 points-T4-5, T5-6, T6-7, and T7-8 of the surgical side; 5 mL of solution were injected at each point. Postoperatively, the PCIA was used as part of multimodal analgesia, and all patients recieve .
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
TRIPLE
Enrollment
90
Ultrasound-guided multilevelTPVB is performed at the end of lobectomy
the duration of analgesia
time from completion of TPVB operation to VAS more than 3
Time frame: 48 hours after surgery
total sufentanil consumption
Time frame: 48 hours after surgery
VAS
VAS at rest and during coughing are evaluated by a blinded observer postoperatively
Time frame: 1, 2, 4, 8, 12, 24, 36, and 48 hours after surgery
adverse effects
Time frame: 48 hours after surgery
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