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Effect of noise block using earplugs on propofol sedation requirement during extracorporeal shock wave lithotripsy |
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| รหัสดีโอไอ | |
| Title | Effect of noise block using earplugs on propofol sedation requirement during extracorporeal shock wave lithotripsy |
| Creator | Supaporn Tharahirunchot |
| Contributor | Ketchada Uerpairojkit |
| Publisher | Chulalongkorn University |
| Publication Year | 2553 |
| Keyword | Noise control, Operating rooms, Medical instrument and apparatus, Anesthesia, Kidneys -- Calculi -- Treatment, การควบคุมเสียงรบกวน, ห้องผ่าตัด, เวชภัณฑ์, การระงับความรู้สึก, นิ่วไต -- การรักษา |
| Abstract | Objective: To determine effect of noise block using earplugs on reducing propofol infusion needed to maintain a constant bispectral index (BIS) values in patients undergoing extracorporeal shock wave lithotripsy (ESWL). Design: Randomized double- blinded controlled trial. Material and method: Fifty-eight patients (18-65 years) with nephrolithiasis undergoing ESWL, having ASA physical status I or II and have normal hearing function tested by audiometry were enrolled in this randomized, double-blind, controlled trial. Patients were randomized and allocated into two groups: noise blocked group (earplugs inserted into both ears) and control group (earplugs not inserted). Sedation by target-controlled infusion was started with 1.2 mcg/mL of propofol and propofol target concentration was adjusted gradually by 0.2 mcg/ml every 5 minutes intraoperatively to achieve and maintain bispectral index (BIS) values within 75-80% until the procedure finished. Total amount of propofol (mg), BIS values (%), ambient noise level (dB) and patient satisfaction (1-5) were measured. Results: The amount of propofol infusion needed to maintain a constant BIS index value in patients undergoing ESWL in the noise blocked group was significantly lower than that in the control group (6.91+2.05 vs 8.23+2.16 mg/kg/m2/hr, p=0.021, 95%CI=0.21-2.42).Patient satisfaction was similar in both groups (4[1] vs 4[1], p=0.929). Conclusion: Noise elimination in ambient operating room can reduce the amount of propofol needed to maintain light sedation during ESWL. |
| URL Website | cuir.car.chula.ac.th |
