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Thoracic SurgeryCARMATSNCT03261583

Impact of Preoperative Martial Deficiency on the Level of Blood Transfusion in Programmed Cardiac Surgery

An observational study of Thoracic Surgery, run by Rennes University Hospital at 2 sites in France.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Observational study. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Thoracic Surgery
What is being tested?
Thoracis Surgery - Common care
How many people
444 participants
Where
2 sitesFrance
Study dates
14 Nov 2016to 15 Jan 2018
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: All adult patients programmed for cardiac surgery

Who may be able to join

  • All adult patients programmed for cardiac surgery in the cardiothoracic surgery departments of Rennes, Poitiers, and Brest.

Who cannot join

  • Children <18 years;
  • Procedures for endovascular surgery;
  • Vascular surgery other than ascending aorta and lacrosse;
  • Non-cardiac thoracic surgery;
  • Persons of full age who are subject to legal protection (safeguard of justice, curatorship, guardianship), persons deprived of their liberty.

Trial locations and contacts

2 sites in 1 country.

France2 sites
  • Brest University Hospital

    Brest, 29609

  • Rennes University Hospital

    Rennes, 35033

Other trials in France

About this study

Official title: Impact of Preoperative Martial Deficiency on the Level of Blood Transfusion in Programmed Cardiac Surgery (CARMATS)

Observational study.

Read the detailed description

Blood transfusion is expensive, and has medical and safety consequences for patients who benefit from it. In cardiac surgery, the data concerning the level of perioperative transfusion are very heterogeneous from one center to another. In a large US cohort study of 798 cardiac surgery centers and 102,470 patients undergoing coronary artery bypass surgery, the rate of blood transfusion varies from 8 to 93% depending on the center. It would appear that the largest and most experienced centers have a blood transfusion rate of around 60%.

In addition to its beneficial role in reducing mortality induced by deep or poorly tolerated anemia, current data from the literature also raise morbidity and mortality related to blood transfusion. Murphy et al. Have shown, in an English cohort of cardiac surgery, that transfusion of CGR was correlated with the occurrence of postoperative infections and ischemic events, as well as early and late excess mortality. These effects appear as early as the first transfused red blood cell, which is confirmed by a prospective Brazilian study with a hazard ratio of death occurrence of 1.2 for each RBC transfused after cardiac surgery.

Preoperative anemia is found in 25% of patients in programmed cardiac surgery and its etiologies are varied. Iron deficiency appears to be at the forefront, especially in coronary patients for whom studies report up to 48% iron deficiency anemia. It may also be vitamin B12 deficiency or folate, chronic pathologies such as renal insufficiency, or any other common cause of anemia.

According to the latest European recommendations, iron deficiency should be defined as <100 ng / mL ferritin or <300 ng / mL ferritin combined with a transferrin saturation <20%.

In cardiac surgery, iron deficiency affects 37% of preoperative patients and is associated with more frequent preoperative and postoperative anemia. It is an independent risk factor for postoperative blood transfusion, even in the absence of preoperatively associated anemia It is currently recommended to seek iron deficiency preoperatively during the discovery of any microcytic anemia and to achieve iron substitution if found. And also to seek supplemental iron deficiency in all patients with cardiac insufficiency.

Being tested
Thoracis Surgery - Common care

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Thoracis Surgery - Common careOther

    Observational study. It is only a matter of collecting clinical data.

Study groups in NCT03261583
Study groupRoleWhat they receive
Thoracic SurgeryObservational study. It is only a matter of collecting clinical data.
Receives: Other: Thoracis Surgery - Common care

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Incidence of patients with iron deficiency

    Measured: Baseline

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted25 Aug 2017
  2. Study start14 Nov 2016
  3. Primary completion15 Jan 2018
  4. Study completion15 Jan 2018

Resources

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
444 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03261583
Sponsor's protocol ID
35RC16_3051_CARMATS
Acronym
CARMATS
Status last verified
Sep 2018
First submitted
23 Aug 2017
Last updated
18 Sep 2018
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

An observational study of Thoracic Surgery, run by Rennes University Hospital at 2 sites in France.

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 5 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 18 Sep 2018. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in France. 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?

Incidence of patients with iron deficiency (time frame: Baseline). 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 18 Sep 2018.

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