Abstract
The purpose of this study was to determine whether the new reciprocating procedure
device (RPD) is superior to the conventional syringe for the administration of local
anesthesia. There were 209 local lidocaine anesthesia procedures randomized between
the RDP and the conventional syringe. Outcome measures included administration time,
anesthesia pain, procedure pain, and operator satisfaction. The RPD significantly
reduced anesthesia administration time by 49% (RPD: 0.68 ± 0.59 min, Syringe: 1.32
± 1.01 min, p < 0.001, 95% confidence interval [CI] for % reduction: 36%–60%), reduced anesthesia
pain by 27% (RPD visual analog pain scale score: 4.05 ± 2.64; Syringe: 5.55 ± 3.00;
p < 0.001, 95% CI 14%–38%), reduced significant procedure pain by 74% (p < 0.001, 95% CI 60%–87%), and improved physician satisfaction by 63% (p < 0.001, 95% CI 53%–74%). The RPD markedly reduces the pain associated with lidocaine
anesthesia administration, reduces administration time, and maintains the effectiveness
of local anesthesia. The RPD is superior to and significantly more effective than
the conventional syringe for the administration of local lidocaine anesthesia.
Keywords
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Article info
Publication history
Published online: February 18, 2008
Accepted:
August 1,
2007
Received in revised form:
March 13,
2007
Received:
June 13,
2006
Identification
Copyright
© 2008 Elsevier Inc. Published by Elsevier Inc. All rights reserved.
