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PROSEVO Trial (Propofol-Sevoflurane Delirium Target Trial Emulation)

3 juni 2026 bijgewerkt door: Claudia Spies, Charite University, Berlin, Germany

The results of this study have significant implications for clinical practice and guideline development. The current European guideline on postoperative Delirium prevention (ESAIC 2024) explicitly identifies a lack of large, adequately powered studies comparing different anesthetic techniques and is therefore currently unable to provide clear recommendations on the selection of an optimal technique. This study will close this knowledge gap and thus support future guideline recommendations. The results could show that a particular anesthetic technique (e.g., propofol) is associated with a significantly lower risk of postoperative delirium; if so, this would have immediate implications for modifying standard anesthesia protocols in hospitals.

Furthermore, Delirium is a significant public health challenge in aging societies. With demographic aging, the number of older patients undergoing surgery is continuously increasing. The societal costs of Delirium are estimated at several billion euros per year in major industrialized nations. A reduction in the incidence of postoperative Delirium by just 10% through optimization of the anesthetic procedure would therefore have major health economic implications.

Studie Overzicht

Toestand

Werving

Conditie

Postoperatief delirium

Gedetailleerde beschrijving

This retrospective, single-center cohort study analyzes routine data from Charité - Universitätsmedizin Berlin and its clinical partners for the period from January 1, 2011, to January 31, 2026.

Studietype

Observationeel

Inschrijving (Geschat)

100000

Contacten en locaties

In dit gedeelte vindt u de contactgegevens van degenen die het onderzoek uitvoeren en informatie over waar dit onderzoek wordt uitgevoerd.

Studiecontact

Naam: Claudia Spies, MD, Prof.
Telefoonnummer: +49 30 450 55 11 02
E-mail: claudia.spies@charite.de

Studie Locaties

Duitsland
- - Berlin, Duitsland, 12203
    - Werving
    - Department of Anesthesiology and Intensive Care Medicine (CBF), Charité - Universitätsmedizin Berlin
    - Hoofdonderzoeker:
      
      Sascha Treskatsch, MD, Prof.
    - Contact:
      
      Sascha Treskatsch, MD. Prof.
      
      Telefoonnummer: +49 30 450 55 15 22
      
      E-mail: sascha.treskatsch@charite.de
  - Berlin, Duitsland, 13353
    - Werving
    - Department of Anesthesiology and Intensive Care Medicine Berlin
    - Hoofdonderzoeker:
      
      Claudia Spies, MD, Prof.
    - Contact:
      
      Claudia Spies, MD, Prof.
    - Onderonderzoeker:
      
      Maximilian Markus, MD
    - Onderonderzoeker:
      
      Hannah Zoe Wurm
    - Onderonderzoeker:
      
      Nils Daum, MD

Deelname Criteria

Onderzoekers zoeken naar mensen die aan een bepaalde beschrijving voldoen, de zogenaamde geschiktheidscriteria. Enkele voorbeelden van deze criteria zijn iemands algemene gezondheidstoestand of eerdere behandelingen.

Geschiktheidscriteria

Leeftijden die in aanmerking komen voor studie

Volwassen
Oudere volwassene

Accepteert gezonde vrijwilligers

NVT

Bemonsteringsmethode

Kanssteekproef

Studie Bevolking

Adult patients (≥18 years) at the Department of Anesthesiology and Intensive Care Medicine (CCM/CVK) and the Department of Anesthesiology and Intensive Care Medicine (CBF) at Charité,
undergoing elective surgery under general anesthesia
with a planned surgery duration of ≥ 30 minutes

Beschrijving

Inclusion Criteria:

Adult patients (≥18 years) at the Department of Anesthesiology and Intensive Care Medicine (CCM/CVK) and the Department of Anesthesiology and Intensive Care Medicine (CBF) at Charité,
undergoing elective surgery under general anesthesia
with a planned surgery duration of ≥ 30 minutes

In addition, the following conditions must be met:

The surgery must be the patient's first surgery per hospital stay to avoid dependencies and repeated measurements of the same person within a short time frame;
The surgeries take place at Charité between January 1, 2011, and December 31, 2025.

Exclusion Criteria:

Patients in any of the following situations are excluded:

Cardiac surgery (this patient group requires specialized monitoring strategies and has postoperative delirium risk profiles that differ significantly from those of other types of surgery)
preoperatively diagnosed delirium, defined as positive results on the Nursing Delirium Screening Scale (NU-DESC) or the Confusion Assessment Method for the Intensive Care Unit (CAM-ICU) during preoperative evaluations;
severe preoperative cognitive impairment, defined as a Mini-Mental State Examination (MMSE) score <15 points, or
preoperatively documented severe dementia
neurosurgical procedures (neurosurgical patients require specialized monitoring protocols and differ from other surgical patients in their postoperative delirium (POD) symptoms)
Patients who were already admitted to intensive care units prior to their elective surgery (these patients already have increased mortality and a different risk profile)
Patients who were already intubated or sedated prior to surgery (this group cannot undergo standardized POD screening)
High preoperative risk for postoperative nausea and vomiting (PONV) (specifically, patients with documented PONV grade 3 or PONV grade 4 risk are excluded, as this group is indicated for anesthesia with propofol)

Studie plan

Dit gedeelte bevat details van het studieplan, inclusief hoe de studie is opgezet en wat de studie meet.

Hoe is de studie opgezet?

Ontwerpdetails

Wat meet het onderzoek?

Primaire uitkomstmaten

Uitkomstmaat	Maatregel Beschrijving	Tijdsspanne
Incidence of postoperative delirium I Tijdsspanne: 01.01.2011 - 31.12.2025	The occurrence of postoperative delirium (yes/no) within the 5-day follow-up period, defined as a positive NU-DESC or CAM-ICU test result on at least one day of hospitalization.	01.01.2011 - 31.12.2025

Secundaire uitkomstmaten

Uitkomstmaat	Maatregel Beschrijving	Tijdsspanne
Incidence of postoperative delirium II Tijdsspanne: 01.01.2011 - 31.12.2025	Incidence of postoperative delirium specifically in the recovery room	01.01.2011 - 31.12.2025
Delirium severity Tijdsspanne: 01.01.2011 - 31.12.2025	Delirium severity according to the Delirium Detection Score (DDS)	01.01.2011 - 31.12.2025
Duration of delirium Tijdsspanne: 01.01.2011 - 31.12.2025	Number of days with positive delirium screening results	01.01.2011 - 31.12.2025
Time to first occurrence of postoperative delirium Tijdsspanne: 01.01.2011 - 31.12.2025	Time to first occurrence of delirium in days after surgery	01.01.2011 - 31.12.2025
Length of hospital stay Tijdsspanne: 01.01.2011 - 31.12.2025	Length of hospital stay in days	01.01.2011 - 31.12.2025
Unplanned intensive care unit admission Tijdsspanne: 01.01.2011 - 31.12.2025	Unplanned ICU admission by hospital records	01.01.2011 - 31.12.2025
30-day mortality Tijdsspanne: 01.01.2011 - 31.01.2026	30-day mortality by hospital records	01.01.2011 - 31.01.2026

Medewerkers en onderzoekers

Hier vindt u mensen en organisaties die betrokken zijn bij dit onderzoek.

Sponsor

Charite University, Berlin, Germany

Onderzoekers

Studie directeur: Claudia Spies, MD, Prof., Charite University, Berlin, Germany

Studie record data

Deze datums volgen de voortgang van het onderzoeksdossier en de samenvatting van de ingediende resultaten bij ClinicalTrials.gov. Studieverslagen en gerapporteerde resultaten worden beoordeeld door de National Library of Medicine (NLM) om er zeker van te zijn dat ze voldoen aan specifieke kwaliteitscontrolenormen voordat ze op de openbare website worden geplaatst.

Bestudeer belangrijke data

Studie start (Werkelijk)

3 juni 2026

Primaire voltooiing (Geschat)

1 december 2027

Studie voltooiing (Geschat)

1 december 2027

Studieregistratiedata

Eerst ingediend

21 mei 2026

Eerst ingediend dat voldeed aan de QC-criteria