Complication of Surgical ProcedurePERISCOPENCT01346709
Prospective Evaluation of a RIsk Score for Postoperative Pulmonary COmPlications in Europe
An observational study of Complication of Surgical Procedure and Acute Respiratory Failure, Adult, run by European Society of Anaesthesiology at 63 sites in 21 countries.
Trial summary
Prospective Evaluation of a RIsk Score for postoperative pulmonary COmPlications in Europe (PERISCOPE) is a multi-centre, international observational study of a random-sample cohort of patients undergoing a nonobstetric in-hospital surgical procedure under general or regional anaesthesia during a continued 7-day… Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Complication of Surgical Procedure, Acute Respiratory Failure, Adult, Postoperative Respiratory Complications
- How many people
- 5,450 participants
- Where
- 63 sitesin 21 countries
- Study dates
- May 2011to Sep 2011
- Phase
- Observational
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
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: In-patient adult non-obstetric surgery
Who may be able to join
- Patients undergoing a non-obstetric in-hospital surgical procedure, elective or emergent, under general anaesthesia (alone or in combination with regional/neuraxial anaesthesia), neuraxial anaesthesia or plexus block (with and without sedation).
Who cannot join
- age <18 years
- obstetric procedures or any procedure during pregnancy
- regional anaesthesia alone, except to neuroaxial and plexus anaesthesia
- procedures outside the operating room
- procedures related to a previous postoperative complication
- transplantation
- patients with preoperatively intubated trachea
- outpatient procedures, defined as those requiring less than one day's stay for a patient alive at discharge.
Trial locations and contacts
63 sites in 21 countries.
63 sites in 21 countries
Spain25 sites
Hospital General Universitario Alicante, Anaesthesiology
Alicante
Hospital Universitari Germans Trias i Pujol, Anaesthesiology
Badalona
Corporació Sanitària Parc Taulí, Anaesthesiology
Barcelona
Fundació Puigvert Anaesthesiology
Barcelona
Hospital Clinic, Anaesthesiology
Barcelona
Hospital Sant Pau, Anaesthesiology
Barcelona
Parc de Salut Mar, Anesthesiology
Barcelona
Vall d'Hebron University Hospital, Anaesthesiology
Barcelona
Hospital General de La Palma, Anestesiología y Reanimación
Breña Alta
Hospital de Denia,Anesthesia and Intensive Care
Denia
Hospital San Jorge, Anaesthesiology
Huesca
Hospital Arnau de Vilanova Departement of Anesthesiology
Lleida
Hospital Santa Maria, Departement of Anesthesiology
Lleida
Hospital 12 Octubre, Anaesthesiology
Madrid
Hospital del Tajo Anaesthesia and Reanimation
Madrid
Hospital Universitario de La Princesa, Anesthesiology
Madrid
Hospital Universitario de Móstoles, anestesiología y Reanimación
Madrid
Fundacio Althaia, Anaesthesiology
Manresa
Hospital Son Llatzer, Anaesthesiology
Palma de Mallorca
Clinica Universidad de Navarra, Anaesthesia
Pamplona
Hospital Universitario Marques De Valdecilla
Santander
Virgen del Rocio General Universitary Hospital;Anaesthesiology
Seville
Consorcio Hospital General Universitario, Anesthesiology, Critical Care and Pain Relief Unit
Valencia
Hospital Clínic Universitari de València, Anestesiología y Reanimación
Valencia
Hospital Universitario Rio Hortgea, Anaesthesia and Surgical Critical Care
Valladolid
Italy8 sites
S.Orsola-Malpighi
Bologna
Azienda Ospedaliera S. Croce e Carle, Anesthesia
Cuneo
Ospedale San Martino, Dipartimento di scienze chirurgiche e diagnostiche integrate
Genoa
European Institute of Oncology,Anaesthesia and Intensive Care
Milan
University of Milano, Ospedale San Paolo Dpt Of Anaesthesia and Intensive Care
Milan
Azienda Ospedaliera Padova, Anesthesia and Intensive Care Clinic, Department of Pharmacology and Anesthesiology
Padova
Azienda USL n. 5 di Pisa Ospedale F. Lotti Anestesia e Rianimazione
Pontedera
University Of Insubria
Varese
Germany4 sites
University Hospital Bonn, Anesthesiology
Bonn
Klinikum Darmstadt GmbH Anesthesiology, Intensive Care and pain medicin
Darmstadt
University Hospital Carl Gustav Carus, Dresden University of Technonology, Department of Anesthesiology and Intensive Care Therapy
Dresden
Universitätsmedizin Mainz, Departement of Anesthesiology
Mainz
Portugal4 sites
Hospitais da Universidade de Coimbra, EPE. Departement of Anesthesiology
Coimbra
Centro Hospitalar de Lisboa Ocidental, Serviço de Anestesia
Lisbon
Hospital Fernando Fonseca,Anesthesiology
Lisbon
Instituto Português de Oncologia, Departement of Anesthesiology
Porto
Romania3 sites
Emergency Institute of Cardiovascular Diseases Prof Dr C. C. Iliescu, Cardiac Anesthesia and Intensive Care
Bucharest
Emergency Clinical Hospital of Constanta, Department of Anaesthesiology and Intensive Care
Constanța
Emergency County Hospital Clinic of Anesthesia and Intensive Care, Intensive Care and Anesthesiology
Târgu Mureş
Bosnia and Herzegovina2 sites
General Hospital "Prim.dr Abdulah Nakas" Departement of Anaesthesia and intensive care
Sarajevo
Heart Center
Sarajevo
Czechia2 sites
Faculty Hospital Brno, department of Anaesthesiology and Intensive Care Medicine
Brno
Masaryks hospital Usti nad labem, Dept. of Anesthesia and intensive medicine
Ústí nad Labem
Lithuania2 sites
Hospital of Lithuanian University of Health Sciences, Clinic of Anaesthesiology
Kaunas
Vilnius University Hospital Santariskiu Clinics, Center of Anesthesiology, Intensive Care and Pain Treatment
Vilnius
Albania1 site
University Hospital centre "Mother Theresa" Anesthesia & critical Care
Tirana
Croatia1 site
University Hospital Rijeka Anaesthesiology and Intensive care
Rijeka
Estonia1 site
Tartu University Hospital Clinic of Anaesthesiology and Intensive Care
Tartu
Latvia1 site
P Stradins Clinical University hospital, Departement of Anesthesiology
Riga
Luxembourg1 site
ZithaKlinik, Anaesthesiology and Intensive Care
Luxembourg
Poland1 site
10 Wojskowy Szpital Kliniczny z Polikliniką w Bydgoszczy, Anaesthesiology and Intensive Care
Bydgoszcz
Russia1 site
Krasnoyarsk State Medical University,Anesthesiology and Intensive Care
Krasnoyarsk
Turkey (Türkiye)1 site
Medical Faculty of Istanbul, Istanbul University, Anaesthesiology
Istanbul
Ukraine1 site
St.Katherine Hospital of Cardiology Anesthesiology & Pain Treatment
Odesa
About this study
Official title: Prospective Evaluation of a RIsk Score for Postoperative Pulmonary COmPlications in Europe: Predicting Postoperative Pulmonary Complications in Europe: a 7-day Data Collection, Prospective, Observational Study
Prospective Evaluation of a RIsk Score for postoperative pulmonary COmPlications in Europe (PERISCOPE) is a multi-centre, international observational study of a random-sample cohort of patients undergoing a nonobstetric in-hospital surgical procedure under general or regional anaesthesia during a continued 7-day period of recruitment.
Read the detailed description
Prospective Evaluation of a RIsk Score for postoperative pulmonary COmPlications in Europe (PERISCOPE) is a multi-centre, international observational study of a random-sample cohort of patients undergoing a nonobstetric in-hospital surgical procedure under general or regional anaesthesia during a continued 7-day period of recruitment.
Participating centres throughout Europe will contribute routine clinical data describing all eligible patients who undergo surgery during a continuous week (7-days) at convenience of every department within a period of two months from May 1st to July 1st 2011. A questionnaire of around 50 items will be filled during the pre, intra and postoperative periods. The follow-up will end at discharge. The aim of the PERISCOPE study is to validate a simple score to predict postoperative pulmonary complications(PPCs). This score has recently been published in Anesthesiology and you can access linking to: http://journals.lww.com/anesthesiology/Fulltext/2010/12000/Prediction_of_Postoperative_Pulmonary.20.aspx
TIMEFRAME Participants will be followed for the duration of in-hospital stay, an expected average of maximum 5 weeks.
- Conditions
- Complication of Surgical Procedure, Acute Respiratory Failure, Adult, Postoperative Respiratory Complications, Pulmonary Failure, Surgical Complications From General Anesthesia
- Keywords
- Operative surgical procedures, Postoperative pulmonary complications (PPC), Epidemiological Study, ARISCAT score, Risk Score, Europe, PERISCOPE, observational study, Mild respiratory failure, Severe respiratory failure, acute lung injury (ALI), Acute respiratory distress syndrome (ARDS), Suspected pulmonary infection, Pulmonary infiltrate, Pleural effusion, Atelectasis, Pneumothorax, Bronchospasm, Aspiration Pneumonitis, Cardiopulmonary edema
- Medical subject headings
- Respiratory Insufficiency, Acute Lung Injury, Respiratory Distress Syndrome, Pleural Effusion, Pulmonary Atelectasis, Pneumothorax, Bronchial Spasm, Pneumonia, Aspiration
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
| Study group | Role | What they receive |
|---|---|---|
| In-patient Adult Non-obstetricSurgical | Consecutive patients admitted to participating centres undergoing surgery Non-obstetric in-hospital surgical procedure, elective or emergent, under general anaesthesia (alone or in combination with regional/neuraxial anaesthesia), neuraxial anaesthesia or plexus block (with and without sedation). All eligible patients undergoing surgery within the seven day study period will be recruited wherever possible. |
What is being measured
The primary outcome is the main question the study is designed to answer.
The Main Outcome, Defined as a Postoperative Pulmonary Complications (PPC), Will be a Composite of the In-hospital Fatal or Non-fatal Postoperative Events.
Will include:Mild respiratory failure;Severe respiratory failure;acute lung injury(ALI)/Acute respiratory distress syndrome(ARDS);Suspected pulmonary infection;Pulmonary infiltrate;Pleural effusion;Atelectasis;Pneumothorax;Bronchospasm;Aspiration Pneumonitis;Cardiopulmonary edema.Investigators will not modify centre usual patient management. Patients with PPCs will identify by consulting medical records and looking for events fulfilling PPCdefinition. Diagnosis date for every complication will be recorded.Participants will be followed during in-hospital stay up to 5 weeks.
Measured: Postoperative in-hospital stay up to 5 weeks
Secondary outcomes (2)
a) Postoperative Length of Stay
Participants will be followed for the duration of in-hospital stay up to 90 days
Measured: Postoperative in-hospital stay up to 90 days
b) In-hospital Mortality
Participants will be followed for the duration of in-hospital stay up to 90 days
Measured: Postoperative in-hospital stay up to 90 days
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted3 May 2011 (estimated)
- Study startMay 2011
- Primary completionAug 2011
- Study completionSep 2011
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Publications (5)Papers the sponsor has linked to this study.
- Other trials for Complication of Surgical ProcedureStudies 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
- 5,450 participants (actual)
Sponsor and investigators
- Lead sponsor
- European Society of Anaesthesiology
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Jaume Canet, MD, Study director, Hospital Universitari Germans Trias I Pujol, Barcelona, SpainSergi Sabaté, MD, PhD, Principal investigator, Fundació Puigvert (IUNA), Barcelona, SpainOlivier Langeron, MD, PhD, Principal investigator, Groupe Hospitalier Pitie-SalpetriereMarcelo Gama de Abreu, MD,PhD,DEAA, Principal investigator, University Hospital Carl Gustav Carus Dresden University of Technology, Dresden, GermanyLluís Gallart, MD, Principal investigator, Parc de Salut Mar Anaesthesiology Research Group IMIM, Universitat Autònoma de Barcelona, Barcelona, SpainFrancisco Javier Belda, MD, Principal investigator, Hospital Clínico Universitario de Valencia, Valencia, SpainPaolo Pelosi, MD, PhD, Principal investigator, University of Genoa, Genoa, Italy - San Martino Hospital, Genoa, ItalyValentin Mazo, MD, Study chair, Hospital Universitari Germans Trias I Pujol, Barcelona, Spain
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01346709
- Sponsor's protocol ID
- PERISCOPE
- Acronym
- PERISCOPE
- Status last verified
- Oct 2015
- First submitted
- 20 Apr 2011
- Last updated
- 5 Apr 2022
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- No
Publications
Canet J, Hardman J, Sabate S, Langeron O, Abreu MG, Gallart L, Belda J, Markstaller K, Pelosi P, Mazo V. PERISCOPE study: predicting post-operative pulmonary complications in Europe. Eur J Anaesthesiol. 2011 Jun;28(6):459-61. doi: 10.1097/EJA.0b013e328344be2d. No abstract available.
PubMed 21544025Canet J, Gallart L, Gomar C, Paluzie G, Valles J, Castillo J, Sabate S, Mazo V, Briones Z, Sanchis J; ARISCAT Group. Prediction of postoperative pulmonary complications in a population-based surgical cohort. Anesthesiology. 2010 Dec;113(6):1338-50. doi: 10.1097/ALN.0b013e3181fc6e0a.
PubMed 21045639Canet J, Sabate S, Mazo V, Gallart L, de Abreu MG, Belda J, Langeron O, Hoeft A, Pelosi P; PERISCOPE group. Development and validation of a score to predict postoperative respiratory failure in a multicentre European cohort: A prospective, observational study. Eur J Anaesthesiol. 2015 Jul;32(7):458-70. doi: 10.1097/EJA.0000000000000223.
PubMed 26020123Mazo V, Sabate S, Canet J, Gallart L, de Abreu MG, Belda J, Langeron O, Hoeft A, Pelosi P. Prospective external validation of a predictive score for postoperative pulmonary complications. Anesthesiology. 2014 Aug;121(2):219-31. doi: 10.1097/ALN.0000000000000334.
PubMed 24901240Russotto V, Sabate S, Canet J; PERISCOPE group; of the European Society of Anaesthesiology (ESA) Clinical Trial Network. Development of a prediction model for postoperative pneumonia: A multicentre prospective observational study. Eur J Anaesthesiol. 2019 Feb;36(2):93-104. doi: 10.1097/EJA.0000000000000921.
PubMed 30431500
Study at a glance
From the registry record, last updated by the sponsor on 5 Apr 2022. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Prospective Evaluation of a RIsk Score for Postoperative Pulmonary COmPlications in Europe: Predicting Postoperative Pulmonary Complications in Europe: a 7-day Data Collection, Prospective, Observational Study
- ClinicalTrials.gov ID
- NCT01346709
- Acronym / sponsor ID
- PERISCOPE / PERISCOPE
- Conditions
- Complication of Surgical Procedure, Acute Respiratory Failure, Adult, Postoperative Respiratory Complications, Pulmonary Failure, Surgical Complications From General Anesthesia
- Keywords
- Operative surgical procedures, Postoperative pulmonary complications (PPC), Epidemiological Study, ARISCAT score, Risk Score, Europe, PERISCOPE, observational study
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 5,450 participants (actual)
- Lead sponsor
- European Society of AnaesthesiologyUniversity, hospital or other
- Study start
- May 2011
- Primary completion
- Aug 2011 (actual)
- Study completion
- Sep 2011 (actual)
- First posted
- 3 May 2011 (estimated)
- Results
- Posted 5 Apr 2022
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Prospective Evaluation of a RIsk Score for postoperative pulmonary COmPlications in Europe (PERISCOPE) is a multi-centre, international observational study of a random-sample cohort of patients undergoing a nonobstetric in-hospital surgical procedure under general or regional anaesthesia during a continued 7-day period of recruitment.
Detailed description
Prospective Evaluation of a RIsk Score for postoperative pulmonary COmPlications in Europe (PERISCOPE) is a multi-centre, international observational study of a random-sample cohort of patients undergoing a nonobstetric in-hospital surgical procedure under general or regional anaesthesia during a continued 7-day period of recruitment.
Participating centres throughout Europe will contribute routine clinical data describing all eligible patients who undergo surgery during a continuous week (7-days) at convenience of every department within a period of two months from May 1st to July 1st 2011. A questionnaire of around 50 items will be filled during the pre, intra and postoperative periods. The follow-up will end at discharge. The aim of the PERISCOPE study is to validate a simple score to predict postoperative pulmonary complications(PPCs). This score has recently been published in Anesthesiology and you can access linking to: http://journals.lww.com/anesthesiology/Fulltext/2010/12000/Prediction_of_Postoperative_Pulmonary.20.aspx
TIMEFRAME Participants will be followed for the duration of in-hospital stay, an expected average of maximum 5 weeks.
Study design
- Observational model
- Cohort
- Time perspective
- Prospective
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| In-patient Adult Non-obstetricSurgical | – | –Consecutive patients admitted to participating centres undergoing surgery Non-obstetric in-hospital surgical procedure, elective or emergent, under general anaesthesia (alone or in combination with regional/neuraxial anaesthesia), neuraxial anaesthesia or plexus block (with and without sedation). All eligible patients undergoing surgery within the seven day study period will be recruited wherever possible. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
- Study population
- In-patient adult non-obstetric surgery
Key inclusion criteria (1 listed)
- Patients undergoing a non-obstetric in-hospital surgical procedure, elective or emergent, under general anaesthesia (alone or in combination with regional/neuraxial anaesthesia), neuraxial anaesthesia or plexus block (with and without sedation).
Key exclusion criteria (8 listed)
- age <18 years
- obstetric procedures or any procedure during pregnancy
- regional anaesthesia alone, except to neuroaxial and plexus anaesthesia
- procedures outside the operating room
- procedures related to a previous postoperative complication
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
The Main Outcome, Defined as a Postoperative Pulmonary Complications (PPC), Will be a Composite of the In-hospital Fatal or Non-fatal Postoperative Events.
Time frame: Postoperative in-hospital stay up to 5 weeks
Will include:Mild respiratory failure;Severe respiratory failure;acute lung injury(ALI)/Acute respiratory distress syndrome(ARDS);Suspected pulmonary infection;Pulmonary infiltrate;Pleural effusion;Atelectasis;Pneumothorax;Bronchospasm;Aspiration Pneumonitis;Cardiopulmonary edema.Investigators will not modify centre usual patient management. Patients with PPCs will identify by consulting medical records and looking for events fulfilling PPCdefinition. Diagnosis date for every complication will be recorded.Participants will be followed during in-hospital stay up to 5 weeks.
2 secondary outcomes
a) Postoperative Length of Stay
Time frame: Postoperative in-hospital stay up to 90 days
b) In-hospital Mortality
Time frame: Postoperative in-hospital stay up to 90 days
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 5 Apr 2022.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Background: PubMed 21544025Canet J, Hardman J, Sabate S, Langeron O, Abreu MG, Gallart L, Belda J, Markstaller K, Pelosi P, Mazo V. PERISCOPE study: predicting post-operative pulmonary complications in Europe. Eur J Anaesthesiol. 2011 Jun;28(6):459-61. doi: 10.1097/EJA.0b013e328344be2d. No abstract available.
- Background: PubMed 21045639Canet J, Gallart L, Gomar C, Paluzie G, Valles J, Castillo J, Sabate S, Mazo V, Briones Z, Sanchis J; ARISCAT Group. Prediction of postoperative pulmonary complications in a population-based surgical cohort. Anesthesiology. 2010 Dec;113(6):1338-50. doi: 10.1097/ALN.0b013e3181fc6e0a.
- Results publication: PubMed 26020123Canet J, Sabate S, Mazo V, Gallart L, de Abreu MG, Belda J, Langeron O, Hoeft A, Pelosi P; PERISCOPE group. Development and validation of a score to predict postoperative respiratory failure in a multicentre European cohort: A prospective, observational study. Eur J Anaesthesiol. 2015 Jul;32(7):458-70. doi: 10.1097/EJA.0000000000000223.
- Results publication: PubMed 24901240Mazo V, Sabate S, Canet J, Gallart L, de Abreu MG, Belda J, Langeron O, Hoeft A, Pelosi P. Prospective external validation of a predictive score for postoperative pulmonary complications. Anesthesiology. 2014 Aug;121(2):219-31. doi: 10.1097/ALN.0000000000000334.
- Derived from this study: PubMed 30431500Russotto V, Sabate S, Canet J; PERISCOPE group; of the European Society of Anaesthesiology (ESA) Clinical Trial Network. Development of a prediction model for postoperative pneumonia: A multicentre prospective observational study. Eur J Anaesthesiol. 2019 Feb;36(2):93-104. doi: 10.1097/EJA.0000000000000921.
- The aim of the PERISCOPE study is to validate a simple score to predict postoperative pulmonary complications. This score has recently been published in Anesthesiology and you can access via this linkLink provided by the sponsor.
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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.
Jaume Canet, MD study director
Hospital Universitari Germans Trias I Pujol, Barcelona, Spain
Sergi Sabaté, MD, PhD principal investigator
Fundació Puigvert (IUNA), Barcelona, Spain
Olivier Langeron, MD, PhD principal investigator
Groupe Hospitalier Pitie-Salpetriere
63 sites in 21 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Complication of Surgical Procedure and Acute Respiratory Failure, Adult, run by European Society of Anaesthesiology at 63 sites in 21 countries.
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 8 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 5 Apr 2022. 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, Italy, Germany, Portugal, Romania and 16 more countries. 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?
Yes. Results are posted in the registry (first posted 5 Apr 2022). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
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?
The Main Outcome, Defined as a Postoperative Pulmonary Complications (PPC), Will be a Composite of the In-hospital Fatal or Non-fatal Postoperative Events. (time frame: Postoperative in-hospital stay up to 5 weeks). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT01346709, which also lists 5 linked publications.
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 5 Apr 2022.