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Table 2 Efficacy of lidocaine delivery to tissues through four microconduits.

From: Transdermal microconduits by microscission for drug delivery and sample acquisition

Site treatment Four microconduits, soaked with lidocaine for 5 minutes

Sensation description (at two laser powers)

 

35 mJ

40 mJ

15 min after lidocaine

  

Control – no lidocaine, no microconduit

Sharp interior pain

Sharp interior, very painful

Control – lidocaine, no microconduit

Sharp interior pain

Sharp interior, very painful

lidocaine microconduit site

Hardly perceptible

Hardly perceptible

30 min after lidocaine

  

Repeat 15 minute test sequence

No changes in sensation levels

75 min after lidocaine

  

Control – no lidocaine, no microconduit

Sharp interior pain

Sharp interior, very painful

Control – lidocaine, no microconduit

Sharp interior pain

Sharp interior, very painful

lidocaine microconduit site

Considerable pain

Sharp interior pain