| Popis: |
Background Dexmedetomidine, a potent and highly selective α2-adrenoreceptor agonist has become a popular adjuvant to local anesthetics. The study was designed to explore the effect of dexmedetomidine added to ropivacaine for interscalene brachial plexus block (IBPB) on postoperative analgesia in patient undergoing arthroscopic shoulder surgery. Methods Forty four adult patients undergoing arthroscopic shoulder surgery were randomly divided into 2 groups. Group R received 0.25% ropivacaine alone, whereas group RD received 0.25% ropivacaine and 0.5 µg/kg dexmedetomidine. A total volume of 15 ml was administered in ultrasound-guided IBPB in both groups. Duration of analgesia, Visual analogue scale (VAS) pain score, frequency of PCA pressed, first time of PCA pressed, sufentanil consumption, and patient satisfaction with analgesia quality were recorded. Results Compared with group R, duration of analgesia was prolonged (8.25±1.76 vs. 11.55±2.41 h; P vs. 0(0–0) and 2(2–3) vs. 0(0-2.25), respectively; P vs. 0(0–0) and 5(1.75-6) vs. 0(0–2), respectively; P vs. 12.98±2.35 h; P vs. 94.65±12.47 µg; P vs. 4(4–5); P |
