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Sleep Board Review Test 1

1.  Modafinil has been used to treat patients with Shift Work Sleep Disorder.  In a major study modafinil was shown to have all of the following outcomes EXCEPT:

 

a.  improved mean sleep latency

b.  increase in daytime sleep onset latency

c.  more patients demonstrated an improvement in symptoms

d.  a reduction in frequency and duration of lapses on the psychomotor vigilance test

e.  reduction in motor vehicle accidents or near misses while commuting home

 

Answer: b.  increase in daytime sleep onset latency

 

The U.S. Modafinil in Shift Work Sleep Disorder Study Group reported on the use of modafinil in patients with shift work sleep disorder compared to placebo.  The patients treated with modafinil had a small increase in sleep latency at work  (1.7 vs. 0.3 min; P=0.002), more patients had improvement in their clinical symptoms (74% vs. 36%; P<0.001), a reduction in the frequency and duration of lapses of attention during nighttime testing of their performance on the Psychomotor Vigilance Test (change from baseline, a reduction in lapse frequency of 2.6 vs. an increase of 3.8, respectively; P<0.001), and fewer patients reported having had accidents or near accidents while commuting home (29% vs. 54%; P<0.001).  Modafinil did not adversely affect daytime sleep.

 

Reference:

Czeizler CA et al.  NEJM 2005;353:476

 

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