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Observational Study
. 2015 Dec 18:15:184.
doi: 10.1186/s12871-015-0168-8.

Postoperative delirium assessed by post anesthesia care unit staff utilizing the Nursing Delirium Screening Scale: a prospective observational study of 1000 patients in a single Swiss institution

A Winter  1 , M P Steurer  2 , Alexander Dullenkopf  3
Affiliations
Observational Study

Postoperative delirium assessed by post anesthesia care unit staff utilizing the Nursing Delirium Screening Scale: a prospective observational study of 1000 patients in a single Swiss institution

A Winter et al. BMC Anesthesiol. .

Abstract

Background: Delirium has become better studied, but is still only partially understood and significantly underestimated. There are some well-known risk factors, but little is known about the incidence of delirium in the diverse patient population of a post anesthesia care unit (PACU). The aim of this study was to investigate the presence of delirium using the Nursing Delirium Screening Scale (NU-DESC).

Methods: 1000 consecutive patients in the PACU were prospectively evaluated at the point when being ready to be transferred to the normal ward by the registered nurses of the PACU.

Results: The data of 1,000 patients was recorded. 242 of the patients (24.2%) were preoperatively classified as ASA I physical status, 664 patients (66.4%) as ASA II. A total of 43 patients (4.3%) presented with a delirium at the time point where they would have been transferred to the normal ward (138.4 ± 55.2 min after arrival in the PACU). 287 patients (28.7%) of the entire group were over the age of 70 years. Considering only this subgroup, delirium was diagnosed in 30 individuals (10.5%).

Conclusions: Delirium screening with the NU-DESC, collected by nursing staff of a PACU is easily feasible and demonstrated a low incidence of delirium in the presented setting.

Trial registration: German Clinical Trials Register (Deutsches Register Klinischer Studien, www.drks.de ; DRKS 000005426 ; date of registration 4th December 2013).

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