Cochrane · systematic review · CD013658

Oncoplastic breast‐conserving surgery for women with primary breast cancer

Nanda, A, Hu, J, Hodgkinson, S, et al. · Cochrane Database of Systematic Reviews · 2021 · Cochrane Library

Breast CancerAMSTAR 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
13
No studies
0
Included studies
NR
No studies 0 · 0%Ungraded 8 · 38.1%Very low 10 · 47.6%Low 3 · 14.3%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

Any O‐BCS compared to S‐BCS for women with primary breast cancer

Population: women with primary breast cancer
7 questions
OutcomeEffectEvidenceStatus / GRADE
Local recurrence‐free survival (up to 5 years)
Any O‐BCS vs S‐BCS
HR 0.9 [0.61, 1.34]4 studies · 7600 participantsVery low
Downgraded: risk of bias, imprecision
Local recurrence rates (up to 5 years)
Any O‐BCS vs S‐BCS
HR 1.33 [0.96, 1.83]4 studies · 2443 participantsLow
Downgraded: risk of bias, imprecision
Disease‐free survival (up to 5 years)
Any O‐BCS vs S‐BCS
HR 1.06 [0.89, 1.26]7 studies · 5532 participantsLow
Downgraded: risk of bias, imprecision
Re‐excision rate: total re‐excisions
Any O‐BCS vs S‐BCS
RR 0.76 [0.69, 0.85]38 studies · 13341 participantsVery low
Downgraded: risk of bias, inconsistency, publication bias
Complications
Any O‐BCS vs S‐BCS
RR 1.19 [1.1, 1.27]20 studies · 118005 participantsVery low
Downgraded: risk of bias, imprecision, inconsistency
Recall rate
Any O‐BCS vs S‐BCS
RR 2.39 [1.67, 3.42]6 studies · 715 participantsLow
Downgraded: risk of bias
Patient‐reported outcome measures
Any O‐BCS vs S‐BCS
no estimate extracted24 studies · 5665 participantsVery low
Downgraded: risk of bias

Any O‐BCS compared to mastectomy for women with primary breast cancer

Population: women with primary breast cancer
7 questions
OutcomeEffectEvidenceStatus / GRADE
Local recurrence‐free survival (up to 5 years)
Any O‐BCS vs mastectomy
HR 0.55 [0.34, 0.91]2 studies · 4713 participantsVery low
Downgraded: risk of bias, inconsistency
Cumulative local recurrence rate
Any O‐BCS vs mastectomy
no estimate extracted0 studies · 0 participantsUngraded
Disease‐free survival
Any O‐BCS vs mastectomy
RR 0.58 [0.41, 0.82]1 study · 1193 participantsVery low
Downgraded: risk of bias, imprecision
Re‐excision rates
Any O‐BCS vs mastectomy
no estimate extracted0 studies · 0 participantsUngraded
Complications
Any O‐BCS vs mastectomy
RR 0.75 [0.67, 0.83]4 studies · 4839 participantsVery low
Downgraded: risk of bias, inconsistency
Recall rates
Any O‐BCS vs mastectomy
no estimate extracted0 studies · 0 participantsUngraded
Patient‐reported outcome measures
Any O‐BCS vs mastectomy
no estimate extracted1 study · 1 participantsUngraded

Any O‐BCS compared to mastectomy plus reconstruction for women with primary breast cancer

Population: women with primary breast cancer
7 questions
OutcomeEffectEvidenceStatus / GRADE
Local recurrence‐free survival
Any O‐BCS vs mastectomy plus reconstruction
HR 1.37 [0.72, 2.62]1 study · 3785 participantsVery low
Downgraded: risk of bias, imprecision
Cumulative local recurrence rate
Any O‐BCS vs mastectomy plus reconstruction
no estimate extracted0 studies · 0 participantsUngraded
Disease‐free survival
Any O‐BCS vs mastectomy plus reconstruction
HR 0.45 [0.09, 2.22]1 study · 317 participantsVery low
Downgraded: risk of bias, imprecision
Re‐excision rates
Any O‐BCS vs mastectomy plus reconstruction
no estimate extracted0 studies · 0 participantsUngraded
Complications
Any O‐BCS vs mastectomy plus reconstruction
RR 0.49 [0.45, 0.54]5 studies · 4973 participantsVery low
Downgraded: risk of bias, inconsistency
Recall rates
Any O‐BCS vs mastectomy plus reconstruction
no estimate extracted0 studies · 0 participantsUngraded
Patient‐reported outcome measures
Any O‐BCS vs mastectomy plus reconstruction
no estimate extracted3 studies · 3 participantsUngraded