- ICH GCP
- US-Register für klinische Studien
- Klinische Studie NCT07597330
POD Risk for Colorectal Cancer Surgery
A Novel Risk System Integrating Clustering-derived Subtype and TyG Index for Predicting Postoperative Delirium in Colorectal Cancer Patients
Studienübersicht
Status
Bedingungen
Detaillierte Beschreibung
This observational study aims to address the unmet clinical need for a simple, colorectal cancer-specific tool to predict postoperative delirium (POD), a prevalent complication linked to prolonged hospitalization and compromised recovery.
Eligible patients will undergo preoperative data collection, including demographic details, comorbidities, and laboratory tests (e.g., triglycerides, glucose for TyG index calculation, inflammatory and metabolic markers). Unsupervised K-means clustering will be applied to these multidimensional data to identify latent clinical subtypes, capturing complex interactions between metabolic status, inflammatory responses, and clinical characteristics that may influence POD risk.
Postoperatively, standardized POD assessment will be conducted twice daily for 7 days using the validated 3D-CAM tool, ensuring consistent identification of POD cases. No experimental interventions will be implemented-all participants receive routine preoperative evaluation, surgical care, and postoperative management per clinical guidelines.
Statistical analyses will first screen independent POD predictors via univariate and multivariate logistic regression. A scoring scale will then be developed by assigning weights to core predictors (clustering-derived subtypes, TyG index, and key clinical factors) based on their predictive strength (odds ratios). The scale's performance will be validated for discriminative ability (AUC) and calibration to ensure reliability in clinical practice.
The study's primary output is a user-friendly risk scoring tool that enables clinicians to rapidly assess POD risk preoperatively, facilitating targeted preventive strategies and improving patient outcomes without adding complexity to clinical workflows.
Studientyp
Einschreibung (Tatsächlich)
Kontakte und Standorte
Studienorte
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Gansu
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Lanzhou, Gansu, China, 73000
- The First Hospital of Lanzhou University
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Teilnahmekriterien
Zulassungskriterien
Studienberechtigtes Alter
- Erwachsene
- Älterer Erwachsener
Akzeptiert gesunde Freiwillige
Probenahmeverfahren
Studienpopulation
Beschreibung
Inclusion Criteria:
- Histologically confirmed colorectal cancer (colon or rectal cancer) via - preoperative or postoperative pathology;
- Scheduled for elective surgical intervention (open or laparoscopic resection);
- Preoperative Mini Mental State Examination (MMSE) score ≥18 (no pre-existing cognitive impairment);
- Able to provide written informed consent (self or legal representative);
- Complete preoperative clinical and laboratory data.
Exclusion Criteria:
- Postoperative pathology confirmed non-malignant tumor;
- Age ≥90 years old;
- Presence of visual, cognitive, language, or speech impairment; or history of neuropsychiatric diseases (dementia, Parkinson's disease, cerebrovascular accidents);
- No preoperative cognitive function assessment or MMSE score <18;
- Emergency surgery or palliative surgery (non-curative resection);
- Postoperative admission to intensive care unit (ICU) (excluded due to different monitoring and intervention patterns);
- Missing key data >5% (e.g., incomplete TyG index calculation, missing clustering analysis variables);
- Refusal to participate or inability to complete 7-day postoperative follow-up.
Studienplan
Wie ist die Studie aufgebaut?
Designdetails
Kohorten und Interventionen
Gruppe / Kohorte |
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Darmkrebs
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Was misst die Studie?
Primäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
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Incidence of Postoperative Delirium (POD) within 7 days after surgery
Zeitfenster: From postoperative day 1 to day 7 (or until hospital discharge if earlier)
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POD is diagnosed using the 3-min Diagnostic Interview for Confusion Assessment Method (3D-CAM), a validated tool for bedside assessment.
Assessments are performed twice daily by centrally trained researchers.
POD is defined as a positive 3D-CAM result at any assessment during the 7-day period.
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From postoperative day 1 to day 7 (or until hospital discharge if earlier)
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Sekundäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
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Postoperative complications (intestinal fistula, bleeding, acute kidney injury, pulmonary infection, abdominal infection)
Zeitfenster: Up to 30 days after surgery
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Recorded based on clinical symptoms, laboratory tests, and imaging findings (e.g., pulmonary infection confirmed by chest CT and elevated inflammatory markers)
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Up to 30 days after surgery
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Length of hospital stay (LOS)
Zeitfenster: Perioperative/Periprocedural
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Total number of days of hospitalization after surgery.
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Perioperative/Periprocedural
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In-hospital mortality
Zeitfenster: Up to 30 days after surgery
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Death occurring during the hospital stay after surgery.
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Up to 30 days after surgery
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Medical expenses
Zeitfenster: Up to 30 days after surgery
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Total medical costs during the hospitalization period (including surgery, medication, examination, and nursing fees)
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Up to 30 days after surgery
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Mitarbeiter und Ermittler
Sponsor
Publikationen und hilfreiche Links
Allgemeine Veröffentlichungen
- Qin Y, Kernan KF, Fan Z, Park HJ, Kim S, Canna SW, Kellum JA, Berg RA, Wessel D, Pollack MM, Meert K, Hall M, Newth C, Lin JC, Doctor A, Shanley T, Cornell T, Harrison RE, Zuppa AF, Banks R, Reeder RW, Holubkov R, Notterman DA, Michael Dean J, Carcillo JA. Machine learning derivation of four computable 24-h pediatric sepsis phenotypes to facilitate enrollment in early personalized anti-inflammatory clinical trials. Crit Care. 2022 May 7;26(1):128. doi: 10.1186/s13054-022-03977-3.
- Li H, Liu C, Yang Y, Wu QP, Xu JM, Wang DF, Sun JJ, Mao MM, Lou JS, Liu YH, Cao JB, Duan CY, Mi WD. Effect of Intraoperative Midazolam on Postoperative Delirium in Older Surgical Patients: A Prospective, Multicenter Cohort Study. Anesthesiology. 2025 Feb 1;142(2):268-277. doi: 10.1097/ALN.0000000000005276. Epub 2024 Oct 29.
Studienaufzeichnungsdaten
Haupttermine studieren
Studienbeginn (Tatsächlich)
Primärer Abschluss (Tatsächlich)
Studienabschluss (Tatsächlich)
Studienanmeldedaten
Zuerst eingereicht
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst gepostet (Tatsächlich)
Studienaufzeichnungsaktualisierungen
Letztes Update gepostet (Tatsächlich)
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Zuletzt verifiziert
Mehr Informationen
Begriffe im Zusammenhang mit dieser Studie
Schlüsselwörter
Zusätzliche relevante MeSH-Bedingungen
- Neurologische Manifestationen
- Erkrankungen des Nervensystems
- Psychische Störungen
- Postoperative Komplikationen
- Pathologische Prozesse
- Neubildungen nach Standort
- Neubildungen
- Darmerkrankungen
- Gastrointestinale Neubildungen
- Neoplasmen des Verdauungssystems
- Erkrankungen des Verdauungssystems
- Magen-Darm-Erkrankungen
- Verwirrtheit
- Neurobehaviorale Manifestationen
- Neurokognitive Störungen
- Darmtumoren
- Rektale Erkrankungen
- Darmerkrankungen
- Delirium
- Pathologische Zustände, Anzeichen und Symptome
- Anzeichen und Symptome
- Entstehung Delirium
- Kolorektale Neubildungen
Andere Studien-ID-Nummern
- POD after CRC surgery
- 25JRRA1256 (Andere Zuschuss-/Finanzierungsnummer: Natural Science Foundation of Gansu Province)
Plan für individuelle Teilnehmerdaten (IPD)
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Studiert ein von der US-amerikanischen FDA reguliertes Arzneimittelprodukt
Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt
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