Cochrane · systematic review · CD007539

Pharmacological interventions for the prevention of allergic and febrile non‐haemolytic transfusion reactions

Martí‐Carvajal, AJ, Solà, I, González, LE, et al. · Cochrane Database of Systematic Reviews · 2010 · Cochrane Library

InjuriesAMSTAR 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
10
current version
GRADE rated
4
No studies
0
Included studies
NR
No studies 0 · 0%Ungraded 6 · 60%Very low 1 · 10%Low 3 · 30%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

Acetaminophen plus Diphenhydramine versus placebo for preventing allergic and febrile non‐haemolytic transfusion reactions (Unit of randomisation: Patient).

Population: patients with requirement of prophylaxis to avoid allergic and febrile non‐haemolytic transfusion reactions
5 questions
OutcomeEffectEvidenceStatus / GRADE
Febrile reactions (fever with or without chills, chills with or without rigors) ‐ Intention‐to treat analysis
Acetaminophen plus Diphenhydramine vs placebo
RR 0.52 [0.21, 1.25]1 study · 334 participantsLow
Downgraded: risk of bias, imprecision
Anaphylatic reactions ‐ not reported
Acetaminophen plus Diphenhydramine vs placebo
RR 0 [0, 0]0 studies · 0 participantsUngraded
Death ‐ not reported
Acetaminophen plus Diphenhydramine vs placebo
RR 0 [0, 0]0 studies · 0 participantsUngraded
Adverse events
Acetaminophen plus Diphenhydramine vs placebo
RR 0 [0, 0]0 studies · 0 participantsUngraded
Allergic reactions (urticaria with or without pruritus) ‐ Intention‐to treat analysis
Acetaminophen plus Diphenhydramine vs placebo
RR 1.45 [0.78, 2.72]1 study · 334 participantsVery low
Downgraded: risk of bias, imprecision

Acetaminophen plus Diphenhydrammine versus placebo (Unit of randomisation: transfusion) for requirement of prophylaxis to avoid allergic and febrile non‐haemolytic transfusion reactions

Population: patients with requirement of prophylaxis to avoid allergic and febrile non‐haemolytic transfusion reactions
5 questions
OutcomeEffectEvidenceStatus / GRADE
Fever ‐ Per protocol analysis
Acetaminophen plus Diphenhydrammine vs placebo (Unit of randomisation: transfusion)
RR 1.77 [0.57, 5.49]1 study · 98 participantsLow
Downgraded: risk of bias, imprecision
Anaphylatic reactions ‐ not reported
Acetaminophen plus Diphenhydrammine vs placebo (Unit of randomisation: transfusion)
RR 0 [0, 0]0 studies · 0 participantsUngraded
Hives ‐ Per protocol analysis
Acetaminophen plus Diphenhydrammine vs placebo (Unit of randomisation: transfusion)
RR 0.13 [0.01, 2.39]1 study · 98 participantsLow
Downgraded: risk of bias
Death ‐ not reported
Acetaminophen plus Diphenhydrammine vs placebo (Unit of randomisation: transfusion)
RR 0 [0, 0]0 studies · 0 participantsUngraded
Adverse events
Acetaminophen plus Diphenhydrammine vs placebo (Unit of randomisation: transfusion)
RR 0 [0, 0]0 studies · 0 participantsUngraded