Cochrane · systematic review · CD000547

Preoperative medical therapy before surgery for uterine fibroids

Lethaby, A, Puscasiu, L, Vollenhoven, B · Cochrane Database of Systematic Reviews · 2017 · Cochrane Library

Gynaecology and FertilityAMSTAR 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
30
current version
GRADE rated
23
No studies
7
Included studies
NR
No studies 7 · 23.3%Ungraded 0 · 0%Very low 3 · 10%Low 14 · 46.7%Moderate 5 · 16.7%High 1 · 3.3%

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

GnRHa treatment versus placebo or no pretreatment (preoperative outcomes) for uterine fibroids

Population: women with uterine fibroids
5 questions
OutcomeEffectEvidenceStatus / GRADE
Uterine volume (mL) (preoperative)
GnRHa treatment vs placebo or no pretreatment (preoperative outcomes)
no estimate extracted13 studies · 858 participantsLow
Downgraded: risk of bias, inconsistency
Fibroid volume (mL) (preoperative)
GnRHa treatment vs placebo or no pretreatment (preoperative outcomes)
no estimate extracted5 studies · 427 participantsLow
Downgraded: risk of bias, imprecision, inconsistency
Haemoglobin (g/dL) (preoperative)
GnRHa treatment vs placebo or no pretreatment (preoperative outcomes)
no estimate extracted10 studies · 834 participantsLow
Downgraded: risk of bias
Preoperative bleeding
GnRHa treatment vs placebo or no pretreatment (preoperative outcomes)
no estimate extractedNRNo studies
Adverse events
GnRHa treatment vs placebo or no pretreatment (preoperative outcomes)
OR 2.78 [1.77, 4.36]4 studies · 755 participantsModerate
Downgraded: risk of bias, imprecision, inconsistency

GnRHa treatment versus no pretreatment or placebo before hysterectomy (operative and postoperative outcomes for uterine fibroids)

Population: women with uterine fibroids
4 questions
OutcomeEffectEvidenceStatus / GRADE
Duration of surgery (minutes)
GnRHa treatment vs no pretreatment or placebo before hysterectomy (operative and postoperative outcomes
no estimate extracted6 studies · 617 participantsLow
Downgraded: risk of bias, inconsistency
Intraoperative blood loss (mL)
GnRHa treatment vs no pretreatment or placebo before hysterectomy (operative and postoperative outcomes
no estimate extracted4 studies · 258 participantsVery low
Downgraded: risk of bias, imprecision, inconsistency
Blood transfusions
GnRHa treatment vs no pretreatment or placebo before hysterectomy (operative and postoperative outcomes
OR 0.54 [0.29, 1.01]6 studies · 601 participantsModerate
Downgraded: risk of bias, imprecision
Postoperative morbidity
GnRHa treatment vs no pretreatment or placebo before hysterectomy (operative and postoperative outcomes
OR 0.54 [0.32, 0.91]7 studies · 772 participantsLow
Downgraded: risk of bias, imprecision

GnRHa treatment versus no pretreatment or placebo before myomectomy (operative and postoperative outcomes for uterine fibroids)

Population: women with uterine fibroids
4 questions
OutcomeEffectEvidenceStatus / GRADE
Duration of surgery (minutes)
GnRHa treatment vs no pretreatment or placebo before myomectomy (operative and postoperative outcomes
no estimate extracted6 studies · 443 participantsVery low
Downgraded: risk of bias, imprecision, inconsistency
Intraoperative blood loss (mL)
GnRHa treatment vs no pretreatment or placebo before myomectomy (operative and postoperative outcomes
no estimate extracted10 studies · 549 participantsVery low
Downgraded: risk of bias, imprecision, inconsistency
Blood transfusions
GnRHa treatment vs no pretreatment or placebo before myomectomy (operative and postoperative outcomes
OR 0.85 [0.26, 2.75]4 studies · 121 participantsLow
Downgraded: risk of bias, imprecision
Postoperative morbidity
GnRHa treatment vs no pretreatment or placebo before myomectomy (operative and postoperative outcomes
OR 1.07 [0.43, 2.64]5 studies · 190 participantsLow
Downgraded: risk of bias, imprecision

GnRHa treatment versus no pretreatment or placebo before resection for uterine fibroids

Population: women with uterine fibroids
4 questions
OutcomeEffectEvidenceStatus / GRADE
Duration of surgery (minutes)
GnRHa treatment vs no pretreatment or placebo before resection
no estimate extracted1 study · 39 participantsLow
Downgraded: risk of bias, imprecision
Intraoperative blood loss (mL)
GnRHa treatment vs no pretreatment or placebo before resection
no estimate extractedNRNo studies
Blood transfusions
GnRHa treatment vs no pretreatment or placebo before resection
no estimate extractedNRNo studies
Postoperative morbidity
GnRHa treatment vs no pretreatment or placebo before resection
no estimate extractedNRNo studies

GnRHa treatment versus other medical therapies before any surgery for uterine fibroids

Population: women with uterine fibroids
6 questions
OutcomeEffectEvidenceStatus / GRADE
Uterine volume (cm³)
GnRHa treatment vs other medical therapies before any surgery
no estimate extractedNRNo studies
Fibroid volume (cm³)
GnRHa treatment vs other medical therapies before any surgery
no estimate extracted2 studies · 110 participantsLow
Downgraded: risk of bias, imprecision
Preoperative haemoglobin (g/dL)
GnRHa treatment vs other medical therapies before any surgery
no estimate extracted1 study · 188 participantsModerate
Preoperative bleeding: Reduction in bleeding to PBAC < 75 ulipristal acetate 5 mg
GnRHa treatment vs other medical therapies before any surgery
OR 0.71 [0.3, 1.68]1 study · 199 participantsModerate
Preoperative bleeding: Reduction in bleeding to PBAC < 75 ulipristal acetate 10 mg
GnRHa treatment vs other medical therapies before any surgery
OR 0.39 [0.14, 1.06]1 study · 203 participantsModerate
Adverse events (hot flushes)
GnRHa treatment vs other medical therapies before any surgery
OR 12.3 [4.04, 37.48]5 studies · 453 participantsLow
Downgraded: risk of bias, inconsistency

SPRM compared to placebo for uterine fibroids

Population: women with uterine fibroids
7 questions
OutcomeEffectEvidenceStatus / GRADE
Uterine volume (cm³)
SPRM vs placebo
no estimate extractedNRNo studies
Fibroid volume (cm³)
SPRM vs placebo
no estimate extractedNRNo studies
Preoperative haemoglobin (g/dL)
SPRM vs placebo
no estimate extracted2 studies · 173 participantsHigh
Preoperative bleeding: (PBAC < 75) ulipristal acetate 5 mg
SPRM vs placebo
OR 41.41 [15.26, 112.38]1 study · 143 participantsLow
Preoperative bleeding: Reduction in menstrual bleeding (PBAC < 75) ulipristal acetate 10 mg
SPRM vs placebo
OR 78.83 [24.02, 258.74]1 study · 146 participantsLow
Preoperative bleeding: Change in menstrual blood loss from baseline to end of treatment
SPRM vs placebo
no estimate extracted1 study · 22 participantsLow
Downgraded: imprecision
Adverse events
SPRM vs placebo
OR 0.05 [0, 1]1 study · 241 participantsLow
Downgraded: imprecision