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Randomized Controlled Trial Clinical Trial
A prospective randomised controlled study of patient-controlled propofol sedation in phobic dental patients.
- N M Girdler, D Rynn, J P Lyne, and K E Wilson.
- Department of Sedation, Newcastle Dental Hospital & School, Richardson Road, Newcastle upon Tyne NE2 4AZ, UK.
- Anaesthesia. 2000 Apr 1; 55 (4): 327-33.
AbstractThe safety and effectiveness of patient-controlled propofol sedation was prospectively assessed in 18 healthy, phobic dental patients. Using a randomised, crossover design each patient received two sessions of equivalent dental treatment under patient-controlled or clinician-controlled propofol sedation. The patient-controlled technique used 29.8% less drug (time-weighted dose) than the clinician-controlled method (p = 0.011). There was a high correlation between number of demands and number of doses actually infused during the patient-controlled technique (r = 0.99, p < 0. 001). Clinically, the level of sedation was lighter and the degree of operator satisfaction was higher with patient-controlled sedation. Blood pressure and arterial oxygen saturation showed minimal changes and remained within normal ranges during both techniques. Patient-controlled sedation produced a greater reduction in dental and general anxiety compared with clinician-controlled sedation, but the difference did not reach statistical significance. Three times the number of patients expressed a preference for the patient-controlled, compared with the clinician-controlled, technique. Patient-controlled sedation provides safe and acceptable intra-operative anxiolysis for phobic dental patients, but with reduced propofol dosage.
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