Tämä sivu käännettiin automaattisesti, eikä käännösten tarkkuutta voida taata. Katso englanninkielinen versio lähdetekstiä varten.

Postoperative Delirium: Brain Vulnerability and Recovery

lauantai 23. toukokuuta 2020 päivittänyt: Ben Palanca, Washington University School of Medicine

In this study, we propose to use EEG and a brain imaging technique known as diffuse optical tomography (DOT) to study when people are in delirium and when they recovery. We plan to also compare brain function of patients who recovered from delirium to patients who did not have delirium using DOT and fMRI. We will also continually monitor the participant's EMR to help coordinate timing of study procedures, as well as to collect information pertaining to their surgery, recovery progress, and indicators of mental status including delirium.

Tutkimuksen yleiskatsaus

Tila

Valmis

Ehdot

Interventio / Hoito

Yksityiskohtainen kuvaus

Postoperative delirium - a mental state of confusion, inattention, and impaired thought - is a potentially life-threatening condition. As many as half of patients that have heart and non heart-related surgery will experience postoperative delirium. Patients diagnosed with postoperative delirium have poorer outcomes and longer hospitalizations. Unfortunately, it is an under-diagnosed condition with a variable delay in when it appears. Additionally, there are no objective tools or tests that can be before or after surgery to anticipate and identify those patients who are at risk. Electroencephalography [EEG] and functional magnetic resonance imaging [fMRI] have helped us understand the changes in the brain during delirium. These suggest that a weakening in correlated activity within a group of brain regions, known as the default mode network (DMN), may be related to delirium.

Opintotyyppi

Interventio

Ilmoittautuminen (Todellinen)

Vaihe

Ei sovellettavissa

Yhteystiedot ja paikat

Tässä osiossa on tutkimuksen suorittajien yhteystiedot ja tiedot siitä, missä tämä tutkimus suoritetaan.

Opiskelupaikat

Yhdysvallat
- Missouri
  - Saint Louis, Missouri, Yhdysvallat, 63110
    - Barnes-Jewish Hospital/Washington University in St. Louis School of Medicine

Osallistumiskriteerit

Tutkijat etsivät ihmisiä, jotka sopivat tiettyyn kuvaukseen, jota kutsutaan kelpoisuuskriteereiksi. Joitakin esimerkkejä näistä kriteereistä ovat henkilön yleinen terveydentila tai aiemmat hoidot.

Kelpoisuusvaatimukset

Opintokelpoiset iät

60 vuotta ja vanhemmat (Aikuinen, Vanhempi Aikuinen)

Hyväksyy terveitä vapaaehtoisia

Sukupuolet, jotka voivat opiskella

Kaikki

Kuvaus

Common inclusion criteria:

Age ≥ 60
Surgery requiring cardiopulmonary bypass (CPB) for coronary artery bypass grafting, septal myectomy and/or heart valve repair/replacement
English speaking.

Common exclusion criteria:

Implanted pacemaker
Automatic internal cardiac defibrillator or other implant for which non-contrast magnetic resonance imaging (MRI) is contraindicated
Concomitant aortic or cerebrovascular procedure
Inability to lay flat or still for MRI
Legal blindness or severe deafness
Seizure history
Known focal brain lesion larger than 3 cm.

Delirium Case Arm:

1. Delirious as diagnosed by the Confusion Assessment Method (CAM)/ Confusion Assessment Method for the Intensive Care Unit (CAM-ICU) at some point during postoperative day 1-5.

Postoperative Control Arm:

1. Not delirious as diagnosed by the CAM/CAM-ICU on postoperative day 1-5.

Opintosuunnitelma

Tässä osiossa on tietoja tutkimussuunnitelmasta, mukaan lukien kuinka tutkimus on suunniteltu ja mitä tutkimuksella mitataan.

Miten tutkimus on suunniteltu?

Suunnittelun yksityiskohdat

Ensisijainen käyttötarkoitus: Diagnostiikka
Jako: Ei satunnaistettu
Inventiomalli: Rinnakkaistehtävä
Naamiointi: Ei mitään (avoin tarra)

Aseiden lukumäärä

Aseet ja interventiot

Osallistujaryhmä / Arm	Interventio / Hoito
Muut: delirium Patients in the cardiothoracic ICU diagnosed with postoperative delirium. Subjects will wear a diffuse optical tomography device in addition to the normal monitors. A non-contrast functional MRI will be performed.	Laite: EEG Brain activity will be recorded to evaluate differences in brain activity between patients with a delirium diagnosis and non-delirious control patients. Muut nimet: brain monitoring in delirious postoperative patients Laite: fcDOT Brain activity will be recorded to evaluate differences in brain activity between patients with a delirium diagnosis and non-delirious control patients. Muut nimet: brain monitoring in delirious postoperative patients Laite: fcMRI Brain activity will be recorded to evaluate differences in brain activity between patients with a delirium diagnosis and non-delirious control patients. Muut nimet: brain monitoring in delirious postoperative patients
Muut: no delirium Patients in the cardiothoracic ICU not diagnosed with postoperative delirium. Subjects will be monitored in the same way as the delirium arm	Laite: EEG Brain activity will be recorded to evaluate differences in brain activity between patients with a delirium diagnosis and non-delirious control patients. Muut nimet: brain monitoring in delirious postoperative patients Laite: fcDOT Brain activity will be recorded to evaluate differences in brain activity between patients with a delirium diagnosis and non-delirious control patients. Muut nimet: brain monitoring in delirious postoperative patients Laite: fcMRI Brain activity will be recorded to evaluate differences in brain activity between patients with a delirium diagnosis and non-delirious control patients. Muut nimet: brain monitoring in delirious postoperative patients

Osallistujaryhmä / Arm

Interventio / Hoito

Muut: delirium

Patients in the cardiothoracic ICU diagnosed with postoperative delirium. Subjects will wear a diffuse optical tomography device in addition to the normal monitors. A non-contrast functional MRI will be performed.

Laite: EEG