Postoperative DeliriumDELPONCT06127901
Prevalence and Risk Factors for Postoperative Delirium 48 Hours After Surgery
An observational study of Postoperative Delirium, run by Fundacin Biomedica Galicia Sur at 63 sites in Spain.
Trial summary
To determine the overall prevalence of postoperative delirium (POI) and its association with different risk factors in order to establish prevention plans to reduce its incidence and/or duration in Spanish hospitals. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Postoperative Delirium
- What is being tested?
- Any surgery under any type of anaesthesia.
- Type of treatment
- Surgery or procedure
- How many people
- 2,442 participants
- Where
- 63 sitesSpain
- Study dates
- 14 Nov 2023to 1 Dec 2024
- How long will I take part?
- 60 Days
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Study population: Patients over 18 years of age undergoing urgent and scheduled surgery requiring hospital admission, under any type of anaesthesia.
Who may be able to join
- Patients over 18 years of age undergoing urgent and scheduled surgery requiring hospital admission, under any type of anaesthesia.
Who cannot join
- Presence of pre-surgical delirium.
- Outpatient surgery.
Trial locations and contacts
63 sites in 1 country.
63 sites in 1 country
Spain63 sites
Hospital Complex of A Coruña
A Coruña, 15006
Príncipe de Asturias University Hospital
Alcalá de Henares, Madrid, 28805
San Juan University Hospital
Alicante, 03550
Sant Joan University Hospital of Alacant
Alicante, 03550
University Hospital of Badajoz
Badajoz, 06080
Germans Trials i Pujol Hospital
Badalona, Barcelona, 08916
Cruces University Hospital
Barakaldo, Vizcaya, 48903
Santa Creu i Sant Pau Hospital
Barcelona, 08025
Clinic Hospital of Barcelona
Barcelona, 08036
Basurto University Hospital
Bilbao, Vizcaya, 48013
Public Hospital of Mariña
Burela de Cabo, Lugo, 27880
University Hospital of Burgos
Burgos, 09006
San Pedro de Alcántara Hospital
Cáceres, 10003
General University Hospital of Castellón
Castellon, Castelló, 12004
Reina Sofía Hospital
Córdoba, 14004
Infanta Margarita Hospital
Córdoba, 14940
Henares Hospital
Coslada, Madrid, 28822
Donostia University Hospital
Donostia / San Sebastian, Giguzkoa, 20014
General University Hospital of Elche
Elche, Alicante, 03203
Hospital Complex of Ferrol
Ferrol, A Coruña, 15405
Fuenlabrada University Hospital
Fuenlabrada, Madrid, 28942
Francesc de Borja Regional Hospital
Gandia, Valencia, 46702
Cabueñes University Hospital
Gijón, Principality of Asturias, 33394
Josep Trueta University Hospital
Girona, 17007
San Cecilio University Hospital
Granada, 18016
University Hospital of Bellvitge
L'Hospitalet de Llobregat, Barcelona, 08907
Doctor Negrín University Hospital
Las Palmas de Gran Canaria, Las Palmas, 35010
Hospital of León
León, 24071
Lucus Augusti Universitary Hospital
Lugo, 27003
San José and Santa Adela Cruz Roja Central Hospital
Madrid, 28003
La Princesa University Hospital
Madrid, 28006
Infanta Leonor University Hospital
Madrid, 28031
San Carlos Clinical Hospital
Madrid, 28040
12 Octubre University Hospital
Madrid, 28041
La Paz Universitary Hospital
Madrid, 28046
La Paz University Hospital
Madrid, 28046
Hospital Universitario Fundación Alcorcón
Madrid, 28922
Puerta de Hierro University Hospital
Majadahonda, Madrid, 28222
Manises Hospital
Manises, Valencia, 46940
Regional Hospital of Monforte de Lemos
Monforte de Lemos, Lugo, 27400
University Hospital of Móstoles
Móstoles, Madrid, 28935
Hospital Complex of Ourense
Ourense, 32005
Central University Hospital of Asturias
Oviedo, Principality of Asturias, 33011
University Hospital of Son Espases
Palma de Mallorca, Balearic Islands, 07120
Montecelo Hospital
Pontevedra, 36071
Quirónsalud University Hospital
Pozuelo de Alarcón, Madrid, 28223
Parc Taulí Hospital
Sabadell, Barcelona, 08208
University Hospital of Salamanca
Salamanca, 37007
Canarias University Hospital
San Cristóbal de La Laguna, Santa Cruz De Tenerife, 38320
Infanta Sofía University Hospital
San Sebastián de los Reyes, Madrid, 28702
Marqués de Valdecilla University Hospital
Santander, Cantabria, 39008
Santiago de Compostela University Clinical Hospital
Santiago de Compostela, A Coruña, 15706
Virgen de la Macarena University Hospital
Seville, 41009
Quirónsalud Valle del Henares Hospital
Torrejón de Ardoz, Madrid, 28806
Clinic Hospital of Valencia
Valencia, 46010
General University Hospital of València
Valencia, 46014
Doctor Peset Universitary Hospital
Valencia, 46017
La Fe University and Polytechnic Hospital
Valencia, 46026
University Clinical Hospital of Valladolid
Valladolid, 47003
Ribera Povisa Hospital
Vigo, 36211
Álvaro Cunqueiro University Hospital
Vigo, 36312
Comarcal Hospital of Castellón
Vinaròs, Castellón, 12500
Miguel Servet University Hospital
Zaragoza, 50009
About this study
Official title: Prevalence and Risk Factors for Postoperative Delirium 48 Hours After Surgery: Multicenter Cohort Study.
To determine the overall prevalence of postoperative delirium (POI) and its association with different risk factors in order to establish prevention plans to reduce its incidence and/or duration in Spanish hospitals.
To this end, patients over 18 years of age who underwent urgent and scheduled surgery requiring hospital admission under any type of anaesthesia during two specific days will be recruited and pre-, intra- and postoperative data will be collected.
- Conditions
- Postoperative Delirium
- Being tested
- Any surgery under any type of anaesthesia.
- Medical subject headings
- Emergence Delirium
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Any surgery under any type of anaesthesia.Procedure or surgery
Any surgery under any type of anaesthesia.
| Study group | Role | What they receive |
|---|---|---|
| Single arm | Patients over 18 years of age undergoing urgent and scheduled surgery requiring hospital admission, under any type of anaesthesia. Receives: Procedure: Any surgery under any type of anaesthesia. |
What is being measured
The primary outcome is the main question the study is designed to answer.
Prevalence of Postoperative Delirium in Spanish hospitals.
To determine the overall prevalence of Postoperative Delirium in Spanish hospitals.
Measured: 2 days
Secondary outcomes (2)
Prevalence of Postoperative Delirium by surgical speciality.
To determine the prevalence of Postoperative Delirium by surgical speciality.
Measured: 2 days
Risk factors on the prevalence of Postoperative Delirium
Determine the influence of risk factors on the prevalence of Postoperative Delirium
Measured: 2 days
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted13 Nov 2023
- Study start14 Nov 2023
- Primary completion1 Dec 2024
- Study completion1 Dec 2024
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Postoperative DeliriumStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Cohort
- Time perspective
- Prospective
- Enrolment
- 2,442 participants (actual)
- Target duration
- 60 Days
Sponsor and investigators
- Lead sponsor
- Fundacin Biomedica Galicia Sur
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06127901
- Sponsor's protocol ID
- DELPO
- Acronym
- DELPO
- Status last verified
- Mar 2026
- First submitted
- 8 Nov 2023
- Last updated
- 20 Mar 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
Study at a glance
From the registry record, last updated by the sponsor on 20 Mar 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Prevalence and Risk Factors for Postoperative Delirium 48 Hours After Surgery: Multicenter Cohort Study.
- ClinicalTrials.gov ID
- NCT06127901
- Acronym / sponsor ID
- DELPO / DELPO
- Conditions
- Postoperative Delirium
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 2,442 participants (actual)
- Lead sponsor
- Fundacin Biomedica Galicia SurUniversity, hospital or other
- Study start
- 14 Nov 2023 (actual)
- Primary completion
- 1 Dec 2024 (actual)
- Study completion
- 1 Dec 2024 (actual)
- First posted
- 13 Nov 2023 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
To determine the overall prevalence of postoperative delirium (POI) and its association with different risk factors in order to establish prevention plans to reduce its incidence and/or duration in Spanish hospitals.
To this end, patients over 18 years of age who underwent urgent and scheduled surgery requiring hospital admission under any type of anaesthesia during two specific days will be recruited and pre-, intra- and postoperative data will be collected.
Study design
- Observational model
- Cohort
- Time perspective
- Prospective
- Target follow-up
- 60 Days
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Single arm | – | Procedure: Any surgery under any type of anaesthesia.Patients over 18 years of age undergoing urgent and scheduled surgery requiring hospital admission, under any type of anaesthesia. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
- Study population
- Patients over 18 years of age undergoing urgent and scheduled surgery requiring hospital admission, under any type of anaesthesia.
Key inclusion criteria (1 listed)
- Patients over 18 years of age undergoing urgent and scheduled surgery requiring hospital admission, under any type of anaesthesia.
Key exclusion criteria (2 listed)
- Presence of pre-surgical delirium.
- Outpatient surgery.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Any surgery under any type of anaesthesia.Any surgery under any type of anaesthesia. | Procedure or surgery | Single arm |
Primary outcome
Prevalence of Postoperative Delirium in Spanish hospitals.
Time frame: 2 days
To determine the overall prevalence of Postoperative Delirium in Spanish hospitals.
2 secondary outcomes
Prevalence of Postoperative Delirium by surgical speciality.
Time frame: 2 days
Risk factors on the prevalence of Postoperative Delirium
Time frame: 2 days
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 20 Mar 2026.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
63 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Postoperative Delirium, run by Fundacin Biomedica Galicia Sur at 63 sites in Spain.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 1 inclusion and 2 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 20 Mar 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 63 sites in Spain. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Prevalence of Postoperative Delirium in Spanish hospitals. (time frame: 2 days). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 20 Mar 2026.