ISRCTN ISRCTN45347268
DOI https://doi.org/10.1186/ISRCTN45347268
Secondary identifying numbers 1070948
Submission date
12/08/2009
Registration date
02/09/2009
Last edited
06/01/2014
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Circulatory System
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English summary of protocol

Not provided at time of registration

Contact information

Dr Ramon Rodrigo
Scientific

Independencia 1027
Santiago
70058
Chile

Study information

Study designDouble blind placebo-controlled clinical trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Hospital
Study typeTreatment
Participant information sheet Not available in web format, please use the contact details below to request a patient information sheet
Scientific titlePrevention of post-operative atrial fibrillation: pathophysyological characterisation of a pharmacological intervention based on a novel model of non-hypoxic pre-conditioning
Study acronymPOAF
Study objectivesThe trial is designed to test the hypothesis that the previous reinforcement of the antioxidant defense system reduces the occurrence of post-operative atrial fibrillation (AF) in patients subjected to cardiac surgery with extracorporeal circulation.

Please note that as of 16/01/2013, the following changes were made to the record:
1. The anticipated start date for this trial was updated from 01/07/2007 to 07/01/2007
2. The anticipated end date for this trial was updated from 01/03/2010 to 31/12/2011
Ethics approval(s)Local Ethics Committees (University of Chile Clinical Hospital, Faculty of Medicine of the University of Chile and Health Ministry of the Chilean Government) approved on the 5th June 2008 (ref: 100)
Health condition(s) or problem(s) studiedPost-operative atrial fibrillation
InterventionOral administration of:
1. Omega-3 polyunsaturated fatty acids: 1 g every 12 hours, beginning 7 days before surgery, until hospital discharge
2. Vitamin C: 500 mg every 12 hours, beginning 2 days before surgery, until hospital discharge
3. Vitamin E: 400 IU daily, beginning 2 days before surgery, until hospital discharge

Total duration of follow-up for all arms: 14 days
Intervention typeOther
Primary outcome measureOcurrence of post-operative atrial fibrillation. Basal electrocardiogram for patients in sinus rhythm and electrocardiographic monitoring will be performed throughout the hospitalisation period, in order to detect the occurrence of atrial fibrillation.
Secondary outcome measures1. Biochemical markers of oxidative stress, performed on blood samples withdrawn: 7 and 2 days before surgery, the day of surgery, 8 hours and 4 days after surgery
2. Atrial tissue will be obtained during surgery to be analysed
Overall study start date07/01/2007
Completion date31/12/2011

Eligibility

Participant type(s)Patient
Age groupAdult
SexBoth
Target number of participants150
Key inclusion criteria1. Aged between 30 - 80 years, either sex
2. Scheduled for elective coronary artery bypass graft, valve surgery, or mixed
3. In sinus rhythm
Key exclusion criteria1. Previous heart surgery
2. Pre-operative documented history of chronic or paroxysmal AF
3. Comorbidities such as congenital or cardiac re-operation
4. Advanced hepatic disease (cirrhosis)
5. Chronic renal failure (serum creatinine greater than 2.0 mg/dL)
Date of first enrolment07/01/2007
Date of final enrolment31/12/2011

Locations

Countries of recruitment

  • Chile

Study participating centre

Independencia 1027
Santiago
70058
Chile

Sponsor information

Fondo de Desarrollo Científico y Tecnológico (Chile)
Government

c/o Maria Elena Boisier
Bernarda Morin 551
Providencia
Santigo
7500832
Chile

Website http://www.fondecyt.cl/
ROR logo "ROR" https://ror.org/02ap3w078

Funders

Funder type

Government

Fondo de Desarrollo Científico y Tecnológico (ref: FONDECYT Nº 1070948), Chilean Government (Chile)

No information available

Results and Publications

Intention to publish date
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot provided at time of registration
Publication and dissemination planNot provided at time of registration
IPD sharing plan

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Results article results 15/10/2013 Yes No