Search of CINAHL and PubMed on the concepts of holoperidol administration and dementia produced the following studies and reviews.

Mac Sweeney, R A national survey of the management of delirium in UK intensive care units. QJM 2010 vol:103 iss:4 pg:243 -251

Girard, Timothy Feasibility, efficacy, and safety of antipsychotics for intensive care unit delirium: the MIND randomized, placebo-controlled trial. Critical care medicine 2010 vol:38 iss:2 pg:428 -437

Balas, Michele, Free your MIND and the rest will follow: decoding delirium in the intensive care unit.
Critical care medicine 2010 vol:38 iss:2 pg:697 -698

Joffe, Aaron Why all the confusion about confusion? Critical care medicine 2010 vol:38 iss:2 pg:695 -696

van den Boogaard, Mark Implementation of a delirium assessment tool in the ICU can influence haloperidol use.
Critical care 2009 vol:13 iss:4 pg:R131 -R131

Page, Valerie, Tackling agitated delirium–the tip of the iceberg. Critical care 2009 vol:13 iss:3 pg:158 -158

Reade, Michael, Dexmedetomidine vs. haloperidol in delirious, agitated, intubated patients: a randomised open-label trial. Critical care 2009 vol:13 iss:3 pg:R75 -R75

Campbell, Noll Pharmacological management of delirium in hospitalized adults–a systematic evidence review.
Journal of general internal medicine 2009 vol:24 iss:7 pg:848 -853

Caplan, Jason, Haloperidol and delirium: management or treatment? Critical care medicine 2009 vol:37 iss:1 pg:354 -355

Gagnon, Pierre Treatment of delirium in supportive and palliative care. Current opinion in supportive and palliative care 2008 vol:2 iss:1 pg:60 -66