Cochrane · systematic review · CD012779

Prophylactic platelet transfusions prior to surgery for people with a low platelet count

Estcourt, LJ, Malouf, R, Doree, C, et al. · Cochrane Database of Systematic Reviews · 2018 · Cochrane Library

HaematologyAMSTAR 2: not assessed
SoF tableOnly the outcomes this review put in its Summary of Findings table are listed (the Cochrane Handbook caps them at about seven per comparison). Its other analyses are not shown here.
Questions
21
current version
GRADE rated
9
No studies
12
Included studies
NR
No studies 12 · 57.1%Ungraded 0 · 0%Very low 9 · 42.9%Low 0 · 0%Moderate 0 · 0%High 0 · 0%

Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.

Questions and results

Prophylactic platelet transfusion prior to surgery versus no prophylactic platelet transfusion prior to surgery

Population: people with a low platelet count
7 questions
OutcomeEffectEvidenceStatus / GRADE
All‐cause mortality within 30 days of surgery
Prophylactic platelet transfusion prior to surgery vs no prophylactic platelet transfusion prior to surgery
RR 0.78 [0.41, 1.45]1 study · 72 participantsVery low
Downgraded: indirectness
Mortality secondary to bleeding within 30 days of surgery – not reported
Prophylactic platelet transfusion prior to surgery vs no prophylactic platelet transfusion prior to surgery
no estimate extractedNRNo studies
Mortality secondary to thromboembolism within 30 days of surgery – not reported
Prophylactic platelet transfusion prior to surgery vs no prophylactic platelet transfusion prior to surgery
no estimate extractedNRNo studies
Mortality secondary to infection within 30 days of surgery – not reported
Prophylactic platelet transfusion prior to surgery vs no prophylactic platelet transfusion prior to surgery
no estimate extractedNRNo studies
Number of participants with major bleeding within 7 days of surgery (surgical site bleeding requiring a second intervention or reoperation or surgical site bleeding that causes a haematoma or haemarthrosis of sufficient size to delay mobilisation ...
Prophylactic platelet transfusion prior to surgery vs no prophylactic platelet transfusion prior to surgery
RR 1.6 [0.29, 8.92]1 study · 64 participantsVery low
Downgraded: risk of bias, imprecision, indirectness
The number of participants with minor procedure‐related bleeding within 7 days of surgery
Prophylactic platelet transfusion prior to surgery vs no prophylactic platelet transfusion prior to surgery
RR 1.29 [0.9, 1.85]1 study · 64 participantsVery low
Downgraded: indirectness
Serious adverse events (surgery‐related adverse effects within 30 days)
Prophylactic platelet transfusion prior to surgery vs no prophylactic platelet transfusion prior to surgery
no estimate extracted1 study · 64 participantsVery low
Downgraded: indirectness

Prophylactic platelet transfusion prior to surgery versus alternative treatments

Population: people with a low platelet count
7 questions
OutcomeEffectEvidenceStatus / GRADE
All‐cause mortality within 30 days of surgery – not reported
Prophylactic platelet transfusion prior to surgery vs alternative treatments
no estimate extractedNRNo studies
Mortality secondary to bleeding within 30 days of surgery – not reported
Prophylactic platelet transfusion prior to surgery vs alternative treatments
no estimate extractedNRNo studies
Mortality secondary to thromboembolism within 30 days of surgery – not reported
Prophylactic platelet transfusion prior to surgery vs alternative treatments
no estimate extractedNRNo studies
Mortality secondary to infection within 30 days of surgery – not reported
Prophylactic platelet transfusion prior to surgery vs alternative treatments
no estimate extractedNRNo studies
Number of participants with major bleeding within 7 days of surgery (bleeding that required ≥ 2 units of whole blood/red blood cells within 24 hours of the bleeding)
Prophylactic platelet transfusion prior to surgery vs alternative treatments
no estimate extracted1 study · 36 participantsVery low
Downgraded: risk of bias
Number of participants with minor procedure‐related bleeding within 7 days of surgery
Prophylactic platelet transfusion prior to surgery vs alternative treatments
RR 0.89 [0.06, 13.23]1 study · 36 participantsVery low
Downgraded: risk of bias
Serious adverse events (transfusion‐related adverse effects within 24 hours of the transfusion)
Prophylactic platelet transfusion prior to surgery vs alternative treatments
RR 2.7 [0.12, 62.17]1 study · 36 participantsVery low
Downgraded: risk of bias

Different platelet count thresholds for administering a prophylactic platelet transfusion prior to surgery

Population: people with a low platelet count
7 questions
OutcomeEffectEvidenceStatus / GRADE
All‐cause mortality within 30 days of surgery – not reported
no estimate extractedNRNo studies
Mortality secondary to bleeding within 30 days of surgery – not reported
no estimate extractedNRNo studies
Mortality secondary to thromboembolism within 30 days of surgery – not reported
no estimate extractedNRNo studies
Mortality secondary to infection within 30 days of surgery – not reported
no estimate extractedNRNo studies
Number of participants with major bleeding within 7 days of surgery
no estimate extracted1 study · 65 participantsVery low
Downgraded: indirectness
Number of participants with minor procedure‐related bleeding within 7 days of surgery
no estimate extracted1 study · 65 participantsVery low
Downgraded: indirectness
Serious adverse events – not reported
no estimate extractedNRNo studies