Post Operative Cognitive Dysfunction After Breast Surgery

April 19, 2026 updated by: Federico Linassi, University of Padova

Post-Operative Cognitive Dysfunction After Breast Surgery: Incidence and Relation With Common Intraoperative Neuromonitoring Data and Concentration of Propofol and Remifentanil Infused With Targeted Controlled Infusion (TCI )in Women With Laryngeal Mask Airway

Aim of this trial is to define if Post-Operative Cognitive Dysfunction, detected analyzing changes between pre-operative and post-operative Neurocognitive Test, and Postoperative Delirium, relate to concentration of effector's site concentration of propofol and remifentanil TCI and to the common intraoperative neuromonitoring values as well as to Pupillometry values (in particular Pupil Diameter, Pupil Latency, and Maximum Contraction Velcoity).

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Detailed Description

Post-Operative Cognitive Dysfunction has not been yet investigated after general anaesthesia with Targeted-Controlled-Infusion (TCI) and Laryngeal-Mask-Airway (LMA), daily used in the investigator's Hospital to anesthetize women undergoing breast surgery. Aim of this trial is to define if neurocognitive tests (Montreal Cognitive Assessment, Trail Making Test A and B, Digit Span Test) before and after surgery, and CAM for Postoperative Delirium relate to concentrations at effector's site (Ce) of propofol and remifentanil TCI and the values of Bispectral Index and Entropy monitoring and Surgical Plethysmographic Index (SPI), as well as to Pupillometry values.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
200

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • Italy
    • TV
      • Treviso, TV, Italy, 31100

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

Women subjected to breast surgery in general anaesthesia with Laryngeal-Mask-Airway (LMA) anesthetized with propofol and remifentanil delivered by Targeted-Controlled-Infusion (TCI) pumps. Women will be subjected to neurocognitive tests (GEMS, TMT A and B) the day before surgery and before hospital discharge. These test will be related to propofol and remifentanil concentrations at effector site during surgery and awakening, to BIS and Entropia values and to SPI and pupillometry values.

Description

Inclusion Criteria:

  • General Anaesthesia delivered with Propofol and Remifentanil with Targeted Controlled Infusion
  • Use of Laryngeal Mask airway

Exclusion Criteria:

  • Neurological pathologies
  • Haemodynamical instability during surgery

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Observational Models: Cohort
  • Time Perspectives: Prospective

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Incidence of Post-Operative Cognitive Dysfunction in breast-surgery patients detected with Montreal Cognitive Assessment test
Time Frame: Patients will be subjected to Global Examination of Mental Test (GEMS) test one day before surgery and 1 day after surgery.
Discover incidence of Post-Operative Cognitive decline analyzing changes in Post-Operative Cognitive Dysfunction changes between Pre-operative Global Examination of Mental Test (GEMS) test. Better neurocognitve outcome with higher scores)
Patients will be subjected to Global Examination of Mental Test (GEMS) test one day before surgery and 1 day after surgery.
Incidence of Post-Operative Cognitive Dysfunction in breast-surgery patients detected with MiniMental State Evaluation test
Time Frame: Patients will be subjected to Confusion Assessment Method (CAM) within 1 hour from awakening from anesthesia.
Discover Post-Operative Cognitive Dysfunction analyzing changes between Pre-operative Mini Mental State Evaluation test and postoperative Mini Mental State Evaluation test score. Worse eurocongitive outcome with lower scores.
Patients will be subjected to Confusion Assessment Method (CAM) within 1 hour from awakening from anesthesia.
Incidence of Emergence Delirium in breast-surgery patients detected with 4AT test
Time Frame: Patients will be subjected to 4 AT test within 1 day from awakening from anesthesia .
Discover Post-Operative Cognitive Dysfunction analyzing acute changes in postoperative congition function utilizing the 4AT test. Worse neurocognitve outcome with higher scores. Worse neurocognitve outcome with higher scores
Patients will be subjected to 4 AT test within 1 day from awakening from anesthesia .
Incidence of Post-Operative Cognitive Dysfunction in breast-surgery patients detected with Trail Making Test A and B
Time Frame: Patients will be subjected to Trail Making Test (TMT) A and B one day before surgery and 1day after surgery.
Discover Post-Operative Cognitive Dysfunction analyzing changes between Pre-operative Trail Making Test A and B test score and post-operative Trail Making Test A and B test score. These tests will be evaluated in seconds required to be completed (better neurocognitive outcome with fewer seconds required)
Patients will be subjected to Trail Making Test (TMT) A and B one day before surgery and 1day after surgery.
Incidence of Post-Operative Delirium in breast-surgery patients
Time Frame: Patients will be subjected to Confusion Assessment Method (CAM) within 1 hour from awakening from anesthesia .
Discover Post-Operative Delirium submitting patients Confusion Assessment Method (CAM-ICU) test. Worse neurocognitve outcome with higher scores (ranging from 0 to 4)
Patients will be subjected to Confusion Assessment Method (CAM) within 1 hour from awakening from anesthesia .
Incidence of Post-Operative Cognitive Dysfunction in breast-surgery patients
Time Frame: Patients will be subjected to Short Portable Mental Status Questionnaire one day before surgery and 1 day after surgery.
Discover Post-Operative Cognitive Dysfunction analyzing changes between Pre-operative Short Portable Mental Status Questionnaire score and post-operative Short Portable Mental Status Questionnaire test score. Better neurocognitve outcome with higher scores (ranging 0 to 10)
Patients will be subjected to Short Portable Mental Status Questionnaire one day before surgery and 1 day after surgery.

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
University of Padova

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Federico Linassi, MD, University of Padova

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
July 3, 2019

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
November 30, 2027

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 31, 2027

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
November 15, 2018

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
December 12, 2018

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
December 13, 2018

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
April 21, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
April 19, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
April 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • MAST

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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