Quote from ktliz
We were told that PTSD was decreased by sedation vacations, because you orient the patient rather than have their ICU stay end up one giant foggy memory. I would get up to find the powerpoint and check the sources, but my bed is too comfy after my 13 hour "fall back" nite shift!
That was when we thought patients received less cumulative benzos when sedation vacations were done, and less benzos=less delirium=less ptsd. That was based on a single small study from 2000. More recent, larger studies actually show the opposite; patients getting regular sedation vacations require more
cumulative benzos then those who don't.
The correlation between benzos and delirium and PTSD is still not very well understood. It had been thought that it didn't matter which kind of Benzo was used, but there's been some suggestion that versed correlates with delirium and PTSD more strongly, which makes sense when you consider it's more psychoactive properties.
Even so, there is a correlation with benzos, a weak one, but based on that and the bulk of evidence on how to reduce cumulative benzo load, sedation vacations may be doing more harm than good.
Sedation vacations dont improve outcomes in ICU - PulmCCM Central