In this prospective, multicentre, open, randomised, controlled clinical trial elderly patients (≥ 70 years) undergoing intermediate- or high-risk non-cardiac surgery will be randomised either to a liberal group (patients receive a RBC unit each time Hb falls ≤ 9 g/dl (≤ 5.6mmol/l) with a target range for the post-transfusion Hb level of 9-10.5 g/dl (5.6-6.5 mmol/l)) or restrictive group (patients receive a single RBC unit each time Hb falls ≤ 7.5 g/dl (≤ 4.7 mmol/l) with a target range for the post-transfusion Hb level of 7.5-9 g/dl (4.7-5.6 mmol/l). Primary efficacy endpoint: is a composite of death from any cause and anaemia-associated, ischaemic events (defined as acute myocardial infarction, acute ischaemic stroke, acute kidney injury stage III, acute mesenteric ischaemia, acute peripheral vascular ischaemia) within 90 days after surgery.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
2,470
patients receive a RBC unit with different target ranges for the post-transfusion Hb levels
University Hospital Augsburg
Augsburg, Germany
Berlin Charite CCM
Berlin, Germany
Charite Berlin CBF
Berlin, Germany
University Hospital Bonn
Bonn, Germany
Klinikum Dortmund
Dortmund, Germany
University Hospital Frankfurt
Frankfurt, Germany
University Hospital Hamburg
Hamburg, Germany
University Hospital Jena
Jena, Germany
University Hospital Schleswig-Holstein
Kiel, Germany
University Hospital Mainz
Mainz, Germany
...and 4 more locations
Occurrence of a composite endpoint
Composite of death and anaemia-associated events I. All-cause mortality defined as death from any cause. II. Acute myocardial infarction confirmed by a cardiologist III. Acute ischaemic stroke confirmed by a neurologist IV. Acute kidney injury (stage III) defined according to the Kidney Disease Improving Global Outcomes criteria: Increase of plasma creatinine level ≥ 3 times within a time window of 7 days or initiation of renal replacement therapy. V. Acute mesenteric ischaemia defined as ischaemia confirmed by intervention (abdominal surgery or mesenteric angiography). VI. Acute peripheral vascular ischaemia defined as a new non-thrombotic compromised circulation in a limb confirmed by angiography and/or leading to surgery.
Time frame: 90 days
Proportion of patients receiving red blood cell transfusion
Time frame: hospital discharge (an anticipated average of 10 days)
Number of red blood cell units transfused
Time frame: hospital discharge (an anticipated average of 10 days)
Total length of stay in the intensive care unit
Time frame: hospital discharge (an anticipated average of 10 days)
Total length of stay in hospital
Time frame: hospital discharge (an anticipated average of 10 days)
Number of participants with acute kidney injury stage I-II
The occurrence of acute kidney injury (stage I or II) defined according to the Kidney Disease Improving Global Outcomes criteria (stage I: increase of plasma creatinine level ≥ 1.5-1.9 times baseline or ≥ 0.3mg/dl within 48 hours; stage II: increase of plasma creatinine level ≥ 2-2.9 times baseline within a time window of 7 days) during the initial hospital stay
Time frame: hospital discharge (an anticipated average of 10 days)
Time to infection
Time to (first) infection (infection requiring therapeutic intravenous antibiotic treatment (pneumonia, wound infection, sepsis, central line associated blood stream infection)) during the initial hospital stay or leading to hospital re-admission
Time frame: 90 days
Time to re-hospitalisation
Time to (first) re-hospitalisation
Time frame: 90 days
functional status (Barthel index)
Functional status (assessed by Barthel Index)
Time frame: 90 days
Health-related quality of life
Health-related quality of life (assessed by EuroQoL EQ-5D and 12-item World Health Organisation Disability Assessment Schedule WHODAS 2.043) by telephone questionnaire)
Time frame: 90 days
Occurrence of any individual component of the composite
composite components (all-cause mortality, acute myocardial infarction, acute stroke, acute kidney injury stage III, acute mesenteric ischaemia, and/or acute peripheral vascular ischaemia)
Time frame: 1 year
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