Cochrane · systematic review · CD010984

Different doses of prophylactic platelet transfusion for preventing bleeding in people with haematological disorders after myelosuppressive chemotherapy or stem cell transplantation

Estcourt, LJ, Stanworth, S, Doree, C, et al. · Cochrane Database of Systematic Reviews · 2015 · 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
10
No studies
3
Included studies
NR
No studies 3 · 14.3%Ungraded 8 · 38.1%Very low 0 · 0%Low 7 · 33.3%Moderate 3 · 14.3%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 transfusions with low‐dose schedule compared to prophylactic platelet transfusions with standard‐dose schedule for people with a haematological disorder

Population: People with a haematological disorder
7 questions
OutcomeEffectEvidenceStatus / GRADE
Number of participants with at least 1 clinically significant bleeding event up to 30 days from study entry
Prophylactic platelet transfusions with low‐dose schedule vs prophylactic platelet transfusions with standard‐dose schedule
RR 1.04 [0.95, 1.13]4 studies · 1170 participantsModerate
Downgraded: risk of bias
Number of days on which bleeding occurred per participant up to 30 days from study entry
Prophylactic platelet transfusions with low‐dose schedule vs prophylactic platelet transfusions with standard‐dose schedule
no estimate extracted2 studies · 230 participantsLow
Downgraded: risk of bias, imprecision
Number of participants with WHO grade 3 or 4 bleeding up to 30 days from study entry
Prophylactic platelet transfusions with low‐dose schedule vs prophylactic platelet transfusions with standard‐dose schedule
RR 1.33 [0.91, 1.92]3 studies · 1059 participantsLow
Downgraded: risk of bias, imprecision
Time to first bleeding episode (days)
Prophylactic platelet transfusions with low‐dose schedule vs prophylactic platelet transfusions with standard‐dose schedule
no estimate extracted2 studies · 959 participantsUngraded
Number of platelet transfusions per participant up to 30 days from study entry
Prophylactic platelet transfusions with low‐dose schedule vs prophylactic platelet transfusions with standard‐dose schedule
no estimate extracted3 studies · 1070 participantsUngraded
Mortality from all causes up to 30 days from study entry
Prophylactic platelet transfusions with low‐dose schedule vs prophylactic platelet transfusions with standard‐dose schedule
RR 2.04 [0.7, 5.93]3 studies · 1070 participantsLow
Downgraded: risk of bias, imprecision
Quality of life ‐ not reported
Prophylactic platelet transfusions with low‐dose schedule vs prophylactic platelet transfusions with standard‐dose schedule
no estimate extractedNRNo studies

Prophylactic platelet transfusions with low‐dose schedule versus high‐dose schedule for preventing bleeding in people with haematological disorders after chemotherapy or stem cell transplantation

Population: People with a haematological disorder
7 questions
OutcomeEffectEvidenceStatus / GRADE
Number of participants with at least 1 clinically significant bleeding event up to 30 days from study entry
Prophylactic platelet transfusions with low‐dose schedule vs high‐dose schedule
RR 1.02 [0.93, 1.11]1 study · 849 participantsModerate
Downgraded: risk of bias
Number of days on which bleeding occurred per participant up to 30 days from study entry
Prophylactic platelet transfusions with low‐dose schedule vs high‐dose schedule
no estimate extracted1 study · 849 participantsUngraded
Number of participants with WHO grade 3 or 4 bleeding up to 30 days from study entry
Prophylactic platelet transfusions with low‐dose schedule vs high‐dose schedule
RR 1.2 [0.82, 1.77]1 study · 849 participantsLow
Downgraded: risk of bias
Time to first bleeding episode
Prophylactic platelet transfusions with low‐dose schedule vs high‐dose schedule
no estimate extracted1 study · 849 participantsUngraded
Mortality from all causes up to 30 days from study entry
Prophylactic platelet transfusions with low‐dose schedule vs high‐dose schedule
RR 1.33 [0.5, 3.54]1 study · 849 participantsLow
Downgraded: risk of bias
Number of platelet transfusions per participant
Prophylactic platelet transfusions with low‐dose schedule vs high‐dose schedule
no estimate extracted1 study · 849 participantsUngraded
Quality of life ‐ not reported
Prophylactic platelet transfusions with low‐dose schedule vs high‐dose schedule
no estimate extractedNRNo studies

Prophylactic platelet transfusions with high‐dose schedule versus standard‐dose schedule for preventing bleeding in people with haematological disorders after chemotherapy or stem cell transplantation

Population: People with a haematological disorder
7 questions
OutcomeEffectEvidenceStatus / GRADE
Number of participants with at least 1 clinically significant bleeding event up to 30 days from study entry
Prophylactic platelet transfusions with high‐dose schedule vs standard‐dose schedule
RR 1.02 [0.93, 1.11]2 studies · 951 participantsModerate
Downgraded: risk of bias
Number of days on which bleeding occurred per participant up to 30 days from study entry
Prophylactic platelet transfusions with high‐dose schedule vs standard‐dose schedule
no estimate extracted1 study · 855 participantsUngraded
Number of participants with WHO grade 3 or 4 bleeding up to 30 days from study entry
Prophylactic platelet transfusions with high‐dose schedule vs standard‐dose schedule
RR 1.11 [0.73, 1.68]1 study · 855 participantsLow
Downgraded: risk of bias
Time to first bleeding episode (days)
Prophylactic platelet transfusions with high‐dose schedule vs standard‐dose schedule
no estimate extracted1 study · 855 participantsUngraded
Number of platelet transfusions per participant up to 30 days from study entry
Prophylactic platelet transfusions with high‐dose schedule vs standard‐dose schedule
no estimate extracted3 studies · 1005 participantsUngraded
Mortality from all causes up to 30 days from study entry
Prophylactic platelet transfusions with high‐dose schedule vs standard‐dose schedule
RR 1.71 [0.51, 5.81]1 study · 855 participantsLow
Downgraded: risk of bias
Quality of life ‐ not reported
Prophylactic platelet transfusions with high‐dose schedule vs standard‐dose schedule
no estimate extractedNRNo studies