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Note: This record shows only 22 elements of the WHO Trial Registration Data Set. To view changes that have been made to the source record, or for additional information about this trial, click on the URL below to go to the source record in the primary register.
Register: ISRCTN
Last refreshed on: 12 July 2021
Main ID:  ISRCTN51817007
Date of registration: 03/01/2014
Prospective Registration: Yes
Primary sponsor: Queen Mary University of London (UK)
Public title: International Surgical Outcomes Study (ISOS)
Scientific title: International observational 7-day cohort study of complications following elective surgery
Date of first enrolment: 01/04/2014
Target sample size: 50000
Recruitment status: Completed
URL:  https://www.isrctn.com/ISRCTN51817007
Study type:  Observational
Study design:  International multicentre observational 7-day cohort study (Treatment)  
Phase:  Not Applicable
Countries of recruitment
Australia Austria Belgium Brazil Canada China Egypt Germany
Greece Hong Kong India Indonesia Iraq Italy Malaysia Mexico
New Zealand Nigeria Pakistan Portugal Romania Russian Federation Singapore South Africa
Spain Sweden Switzerland United Kingdom United States of America
Contacts
Name:    
Address: 
Telephone:
Email:
Affiliation: 
Name: Rupert    Pearse
Address:  Adult Critical Care Unit Royal London Hospital Whitechapel E1 1BB London United Kingdom
Telephone:
Email:
Affiliation: 
Key inclusion & exclusion criteria
Inclusion criteria: All adult patients (aged 18 years or older) undergoing elective surgery in a participating hospital during the seven-day cohort period with a planned overnight stay.
Exclusion criteria: Patients undergoing emergency surgery, planned day-case surgery or radiological procedures

Age minimum:
Age maximum:
Gender: Both
Health Condition(s) or Problem(s) studied
Elective surgery
Surgery
Intervention(s)
This is an observational study. Patients will be followed up until hospital discharge or for a maximum of 30 days, whichever is shorter.
Primary Outcome(s)
To confirm the incidence of 30-day in-hospital complications following elective in-patient surgery.
Secondary Outcome(s)

1. In-hospital all-cause mortality (censored at 30 days following surgery)
2. Admission to critical care (within 30 days following surgery)
3. Duration of hospital stay (duration of primary hospital stay after surgery)
Secondary ID(s)
N/A
Source(s) of Monetary Support
Nestlé Health Science SA.
Secondary Sponsor(s)
Ethics review
Status:
Approval date:
Contact:
NRES Committee Yorkshire & The Humber - Humber Bridge, 20/11/2013, REC ref: 13/YH/0371
Results
Results available: Yes
Date Posted:
Date Completed: 09/07/2014
URL:
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