2018
DOI: 10.1111/anae.14402
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Validation of the cognitive recovery assessments with the Postoperative Quality of Recovery Scale in patients with low‐baseline cognition

Abstract: Patients with pre-surgery cognitive impairment cannot currently be assessed for cognitive recovery after surgery using the Postoperative Quality of Recovery Scale (PostopQRS), as they would mathematically be scored as recovered. We aimed to validate a novel method to score cognitive recovery in patients with low-baseline cognition, using the number of low-score tests rather than their numerical values. Face validity was demonstrated in 86 participants in whom both the Postoperative Quality of Recovery Scale an… Show more

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Cited by 9 publications
(7 citation statements)
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“…That is, patients can perform a little worse than baseline in the cognitive domain, by the magnitude of the tolerance factor, and still be scored as recovered. Patients whose pre‐surgery cognition values fall below the tolerance factor in one or more tests are categorised as ‘low baseline cognition’ and cognitive recovery is scored by the number of tests that score below the tolerance factor, and recovery is defined as the same or fewer tests scoring below the tolerance factor . The PostopQRS was conducted face‐to‐face whilst in hospital and then via telephone after hospital discharge.…”
Section: Methodsmentioning
confidence: 99%
See 1 more Smart Citation
“…That is, patients can perform a little worse than baseline in the cognitive domain, by the magnitude of the tolerance factor, and still be scored as recovered. Patients whose pre‐surgery cognition values fall below the tolerance factor in one or more tests are categorised as ‘low baseline cognition’ and cognitive recovery is scored by the number of tests that score below the tolerance factor, and recovery is defined as the same or fewer tests scoring below the tolerance factor . The PostopQRS was conducted face‐to‐face whilst in hospital and then via telephone after hospital discharge.…”
Section: Methodsmentioning
confidence: 99%
“…The sample size estimate was based on the primary outcome of recovery in the cognitive domain of the PostopQRS at 7 days after surgery, and a clinically important difference in this outcome set at 15% between groups. Estimates of cognitive recovery were based on published PostopQRS research and using multiple ages and surgical cohorts . If there is ‘good recovery’ it was estimated that, for this surgical cohort and duration of surgery, cognitive recovery would range from 70% to 85% at 1 week after surgery.…”
Section: Methodsmentioning
confidence: 99%
“…Major complications and date of discharge were also recorded. For the calculation of the recovery scores, we followed the same rules published previously for the PostopQRS [2,3,7].…”
Section: Data Collectionmentioning
confidence: 99%
“…The assessment tool has been used to identify differences in the quality of recovery when comparing different operative procedures [4], anesthesia techniques [5], and therapeutic interventions [6]. It has also been extensively validated, including two modifications to the cognitive domain, in which a tolerance factor was included due to performance variability observed in human volunteers not undergoing surgery [3], and a method was introduced to score cognitive recovery in patients with low baseline cognition [7].…”
Section: Introductionmentioning
confidence: 99%
“…A tolerance algorithm is used to adjust for normal variability observed in cognitive scoring. 20,21 Patients with poor preoperative cognitive function or impairment are automatically excluded from analysis as 'low baseline'; in an orthopaedic surgical patient population, this rate is estimated at between 5% and 15%. 18 A researcher collected baseline function in five PostopQRS domains using the standardised questionnaires prior to surgery and premedication.…”
Section: Postoperative Quality Of Recovery Measurementmentioning
confidence: 99%