Cochrane · systematic review · CD006883

Antifibrinolytic agents for reducing blood loss in scoliosis surgery in children

McNicol, ED, Tzortzopoulou, A, Schumann, R, et al. · Cochrane Database of Systematic Reviews · 2016 · Cochrane Library

AnaesthesiaAMSTAR 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
16
current version
GRADE rated
16
No studies
0
Included studies
NR
No studies 0 · 0%Ungraded 0 · 0%Very low 7 · 43.8%Low 9 · 56.3%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

Mean total blood loss (mL)

Population: children undergoing surgery for scoliosis
5 questions
OutcomeEffectEvidenceStatus / GRADE
Mean total blood loss (mL: antifibrinolytics vs placebo
no estimate extracted5 studies · 207 participantsLow
Downgraded: risk of bias
Mean total blood loss (mL): aminocaproic acid vs placebo
no estimate extracted1 study · 36 participantsLow
Downgraded: risk of bias
Mean total blood loss (mL): aprotinin vs placebo
no estimate extracted2 studies · 87 participantsLow
Downgraded: risk of bias
Mean total blood loss (mL): tranexamic acid vs placebo
no estimate extracted2 studies · 84 participantsLow
Downgraded: risk of bias
Mean total blood loss (mL): aminocaproic acid vs tranexamic acid
no estimate extracted1 study · 44 participantsLow
Downgraded: risk of bias, imprecision

Number of participants receiving blood transfusion

Population: children undergoing surgery for scoliosis
4 questions
OutcomeEffectEvidenceStatus / GRADE
Number of participants receiving blood transfusion: antifibrinolytics vs placebo
RR 0.65 [0.5, 0.85]4 studies · 195 participantsVery low
Downgraded: risk of bias, publication bias
Number of participants receiving blood transfusion: aminocaproic acid vs placebo
RR 0.48 [0.3, 0.76]2 studies · 108 participantsVery low
Downgraded: risk of bias, publication bias
Number of participants receiving blood transfusion: aprotinin vs placebo
RR 0.75 [0.44, 1.27]1 study · 43 participantsVery low
Downgraded: risk of bias, imprecision
Number of participants receiving blood transfusion: tranexamic acid vs placebo
RR 0.85 [0.56, 1.3]1 study · 44 participantsVery low
Downgraded: risk of bias, imprecision

Number of participants receiving transfusion with allogeneic blood

Population: children undergoing surgery for scoliosis
3 questions
OutcomeEffectEvidenceStatus / GRADE
Number of participants receiving transfusion with allogeneic blood: antifibrinolytics vs placebo
RR 0.11 [0.01, 1.73]2 studies · 79 participantsVery low
Downgraded: risk of bias, imprecision, inconsistency
Number of participants receiving transfusion with allogeneic blood: aminocaproic acid vs placebo
no estimate extracted1 study · 36 participantsVery low
Downgraded: risk of bias
Number of participants receiving transfusion with allogeneic blood: aprotinin vs placebo
RR 0.11 [0.01, 1.73]1 study · 43 participantsVery low
Downgraded: risk of bias, imprecision

Mean total volume of blood transfused (mL)

Population: children undergoing surgery for scoliosis
4 questions
OutcomeEffectEvidenceStatus / GRADE
Mean total blood transfused (mL): antifibrinolytics vs placebo
no estimate extracted5 studies · 207 participantsLow
Downgraded: risk of bias
Mean total blood transfused (mL): aminocaproic acid vs placebo
no estimate extracted1 study · 36 participantsLow
Downgraded: risk of bias
Mean total blood transfused (mL): aprotinin vs placebo
no estimate extracted2 studies · 87 participantsLow
Downgraded: risk of bias
Mean total blood transfused (mL): tranexamic acid vs placebo
no estimate extracted2 studies · 84 participantsLow
Downgraded: risk of bias