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The goal of this observational study is to learn if there are potential digital and plasma-based biomarkers that could help detect, predict, and prognosticate delirium in older adult patients who are admitted to the intensive care unit (ICU). The main question DELTA aims to answer is:
Can digital biometrics predict and detect delirium in older adult ICU patients? Do biomarkers of neurodegeneration fluctuate in ICU patients in such a way that delrium could potentially be predicted?
Participants admitted o the ICU will wear a digital device to collect biometric data and will have serial plasma samples collected during ICU admission and patients will be also assessed for delirium daily by study staff.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| DELTA Cohort | This is the main cohort in which all participants will be enrolled in. These individuals are older adults admitted to the intensive care unit (ICU) with an expected stay of at least 48 hours. Broadly, individuals cannot have advanced dementia at baseline, have liver cirrhosis or be on any kind of renal replacement therapy. |
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| Measure | Description | Time Frame |
|---|---|---|
| Delirium | Delirium incidence as assessed by the CAM-ICU instrument. | Between enrollment and ICU discharge, up to a maximum of 10 days. |
| Measure | Description | Time Frame |
|---|---|---|
| Sleep Duration | Daily total sleep duration as measured by actigraphy | Between enrollment and ICU discharge up to a maximum 10 days in the ICU. |
| Sleep fragmentation | Nightly sleep fragmentation as measured by actigraphy |
| Measure | Description | Time Frame |
|---|---|---|
| Delirium duration | As measured by CAM-ICU | between enrollment and ICU discharge up to a maximum of 10 days |
Inclusion Criteria:
Exclusion Criteria:
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Critically ill older adults.
| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Stuti Jaiswal, MD, PhD | Contact | 858-554-9100 | jaiswal.stuti@scrippshealth.org |
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Scripps Green Hospital | Not yet recruiting | La Jolla | California | 92037 | United States |
Deidentified participant data will be shared upon reasonable request from the principal investigator. A data dictionary will be provided.
January 2028 to December 2033
Data will be provided via a secure served based on reasonable email request to th PI.
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| ID | Term |
|---|---|
| D016638 | Critical Illness |
| D007319 | Sleep Initiation and Maintenance Disorders |
| ID | Term |
|---|---|
| D020969 | Disease Attributes |
| D010335 | Pathologic Processes |
| D013568 | Pathological Conditions, Signs and Symptoms |
| D020919 | Sleep Disorders, Intrinsic |
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Plasma
| Nightly between enrollment and ICU discharge, up to a maximum of 10 days. |
| Circadian activity rhythm disruption | Using daily activity/temperature/heart rate, circadian activity rhythms will be assessed for goodness of fit to a cosinor curve. | Daily between enrollment and ICU discharge, up to a maximum of 10 days. |
| Scripps Memorial La Jolla Hospital | Recruiting | San Diego | California | 92117 | United States |
|
| D020920 | Dyssomnias |
| D012893 | Sleep Wake Disorders |
| D009422 | Nervous System Diseases |
| D001523 | Mental Disorders |