This study will recruit surgical patients more than 65 years old. Patients who participate will wear a sticker on their forehead during surgery which monitors their brain waves (electroencephalogram, EEG) and participate in memory testing before and after surgery. Brain wave patterns will be compared between patients who have problems with memory and thinking after surgery and those who do not. The hypothesis is that there will be characteristic brain wave patients for who will go on to have problems with memory and thinking after surgery.
Eligible patients will be identified through the computerized scheduling system at the Icahn School of Medicine at Mount Sinai. After informed consent, patients will complete cognitive and tests at least one but not more than 30 days prior to surgery. In the recovery room the Post Anesthesia Recovery Scale (PQRS), and CAM-ICU delirium screening will be administered. Immediate recovery will be recorded using the Postoperative Recovery Scale (PQRS) on postoperative day 1 and 3, and 1 week. Longterm functional recovery will be measured with the Alzheimer's Disease Research Center (ADRC) Instrumental Activities for Daily Living (IADL-24). Postsurgical complications will be recorded including unplanned ICU admissions, postoperative myocardial infarction and stroke (risk less than 1 % in most cases), wound infection and reoperation. The full cognitive and functional battery will be repeated at 3 months and 1 year after surgery.
Study Type
OBSERVATIONAL
Enrollment
178
In the operating room. Processed EEG will be measured using the Bispectral Index (BIS) monitor which is standard of care.
Icahn School of Medicine at Mount Sinai
New York, New York, United States
UDS battery
Postoperative Cognitive Dysfunction - UDS battery is the standard ADRC neuropsychological battery and will be used to measure cognition
Time frame: 3 months
Processed EEG
Processed EEG will be measured using the Bispectral Index (BIS) monitor.
Time frame: 1 year
CAM-ICU
The Confusion Assessment Method-ICU is a delirium screening tool for Intensive Care Unit (ICU) patients, assessing 4 features: alteration/fluctuation in mental status, Inattention, altered level of consciousness, and disorganized thinking.
Time frame: baseline
CAM-ICU
The Confusion Assessment Method-ICU is a delirium screening tool for Intensive Care Unit (ICU) patients, assessing 4 features: alteration/fluctuation in mental status, Inattention, altered level of consciousness, and disorganized thinking.
Time frame: Day 1
CAM-ICU
The Confusion Assessment Method-ICU is a delirium screening tool for Intensive Care Unit (ICU) patients, assessing 4 features: alteration/fluctuation in mental status, Inattention, altered level of consciousness, and disorganized thinking.
Time frame: Day 3
CAM-ICU
The Confusion Assessment Method-ICU is a delirium screening tool for Intensive Care Unit (ICU) patients, assessing 4 features: alteration/fluctuation in mental status, Inattention, altered level of consciousness, and disorganized thinking.
Time frame: 1 week
PQRS
Short -Term Recovery: Postoperative Quality of Recovery Scale (PQRS)
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Time frame: baseline
PQRS
Short -Term Recovery: Postoperative Quality of Recovery Scale (PQRS)
Time frame: Day 1
PQRS
Short -Term Recovery: Postoperative Quality of Recovery Scale (PQRS)
Time frame: Day 3
PQRS
Short -Term Recovery: Postoperative Quality of Recovery Scale (PQRS)
Time frame: 1 week
UDS battery
Postoperative Cognitive Dysfunction - UDS battery is the standard ADRC neuropsychological battery and will be used to measure cognition
Time frame: 1 year