Postoperative Cognitive Dysfunction in Elderly

NCT ID: NCT02068742

Last Updated: 2017-05-25

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

NA

Total Enrollment

160 participants

Study Classification

INTERVENTIONAL

Study Start Date

2014-01-31

Study Completion Date

2018-01-31

Brief Summary

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Interventional Study of Early Postoperative Cognitive Dysfunction in Elderly Patients Undergoing General Anesthesia

The main purpose of this study is to determine the incidence of early postoperative cognitive dysfunction in elderly patients and its time course.

This study will first evaluate the preoperative cognitive function of elderly patients based on several criteria including complete patient history, laboratory and instrumental exams, and the following measures in order to identify conditions and pathologies that may influence cognitive function.

* Mini Mental State Examination
* Geriatric Index of Comorbidity
* Geriatric Depression Scale

The following neuropsychological tests will be performed on the same day within 7 days of surgery (baseline):

* Trail Making Test B-A
* Digit Span
* Digit Symbol Substitution Test

The three cognitive function assessments will be repeated at the following postoperative time points and the change from the preoperative baseline to each time will be evaluated:

* Day 2 (time point 1)
* Day 4 (time point 2)
* Between days 85 and 90 (time point 3)

If the patient seems confused before the postoperative administration of these tests, the Neecham Confusion Scale will be used to evaluate the patient for the presence of postoperative delirium; if delirium is not detected, the cognitive function tests will be administered.

Detailed Description

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This study has three specific aims:

1. To define the frequency of occurrence of early post-operative cognitive dysfunction and its time course.
2. To assess risk factors for the onset of post-operative cognitive dysfunction and possible causal factors.
3. to compare our results with those from the international literature.

Conditions

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Postoperative Cognitive Dysfunction

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

First arm of the study considers patients from the operating room with general anesthesia; Second arm of the study considers patients from geriatric regular general ward, without any anesthesia.
Primary Study Purpose

DIAGNOSTIC

Blinding Strategy

NONE

Study Groups

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General Anesthesia patients battery neuropsychological tests

Mini Mental State Examination, Geriatric Index of Comorbidity, Geriatric Depression Scale, Trail Making Test B-A, Digit Span, Digit Symbol Substitution Test Application of the scores will be on the day 0 (the day before the surgery), day 2 and day 4 (after the surgery).

Group Type EXPERIMENTAL

battery neuropsychological tests

Intervention Type OTHER

Application of the scores will be on the day 0 (the day before the surgery), day 2 and day 4 (after the surgery).

Regular recovery patients

Mini Mental State Examination, Geriatric Index of Comorbidity, Geriatric Depression Scale, Trail Making Test B-A, Digit Span, Digit Symbol Substitution Test Application of the scores will be on the day 0 (the day after the hospital admission), day 2 and day 4 (days after the hospital admission).

Group Type ACTIVE_COMPARATOR

battery neuropsychological tests

Intervention Type OTHER

Application of the scores will be on the day 0 (the day before the surgery), day 2 and day 4 (after the surgery).

Interventions

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battery neuropsychological tests

Application of the scores will be on the day 0 (the day before the surgery), day 2 and day 4 (after the surgery).

Intervention Type OTHER

Other Intervention Names

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Mini Mental State Examination, Geriatric Index of Comorbidity, Geriatric Depression Scale, Trail Making Test B-A, Digit Span, Digit Symbol Substitution Test

Eligibility Criteria

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Inclusion Criteria

* Age \> 65 years
* Surgery scheduled under general anesthesia, that is expected to last 90 minutes or longer for the arm experimental

Exclusion Criteria

* A score of 20 or less on the Mini-Mental State Examination (MMSE)
* Illiteracy
* Can't understand Italian language
* Serious hearing or vision impairment not treatable
* A history of any disease of the central nervous system
* A current or past history of psychiatric illness
* A current use of major tranquilizers or antidepressants
* alcoholism or drug dependence or abuse
* Scheduled to undergo cardiac, carotid or intracranial procedures
* Not expected to be alive or available to complete testing at 90 days after surgery
Minimum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Università degli Studi dell'Insubria

OTHER

Sponsor Role lead

Responsible Party

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Paolo Severgnini

MD, PhD

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Severgnini Paolo, MD, PhD

Role: STUDY_DIRECTOR

Università degli Studi dell'Insubria

Locations

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Ospedale di Circolo e Fondazione Macchi

Varese, , Italy

Site Status RECRUITING

Countries

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Italy

Central Contacts

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Severgnini Paolo, MD, PhD

Role: CONTACT

0039033278801

Facility Contacts

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Paolo Severgnini, Professor

Role: primary

00390332278801

Other Identifiers

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1048

Identifier Type: -

Identifier Source: org_study_id

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