I have seen it done with the nasal atomizer (both in the field and hospital), and unless im confused, its the only benzo of the three I've mentioned that can be done this way due to its water solubility. Since becoming a Paramedic I have not encountered any counties through my internship, or where I've been working that use the nasal route for any medication. I am going to look up that article, and then I will throw some more recent pre-hospital articles your way. It seems there is this divide, be it time (that article was in 1992) or be it which side of the spectrum you are on. Recent studies have really made versed out to be not that great. I don't not like it, but from personal experiences I have had better luck with Ativan and Valium.
I do find it interesting that some areas are not embracing this form of drug delivery. It appears well suited for the prehospital environment. I did a quick search for some more recent stuff to look at this more closely....here are some articles you may find interesting....
Intranasal versus intravenous lorazepam for control of acute seizures in children: a randomized open-label study.
Arya R, Gulati S, Kabra M, Sahu JK, Kalra V
Epilepsia. 2011;52(4):788.
Authors find no difference in seizure control between the intranasal and IV routes for ativan
Intranasal midazolam vs rectal diazepam in acute childhood seizures.
Bhattacharyya M, Kalra V, Gulati S
Pediatr Neurol. 2006;34(5):355.
Authors find intranasal midazolam preferable over rectal diazepam
Intranasal midazolam vs rectal diazepam for the home treatment of acute seizures in pediatric patients with epilepsy.
Holsti M, Dudley N, Schunk J, Adelgais K, Greenberg R, Olsen C, Healy A, Firth S, Filloux Arch Pediatr Adolesc Med. 2010;164(8):747.
Authors find no difference between intranasal midazolam and rectal diazepam