Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

475 questions · 487 findings · 49 reviews · Breast Cancer

No studies found 44 · 9%GRADE not reported 14 · 2.9%Very low 108 · 22.2%Low 128 · 26.3%Moderate 107 · 22%High 86 · 17.7%

Capecitabine‐containing regimens vs chemotherapy regimens without capecitabine

Pathological complete response · neoadjuvant treatment of ER‐positive vs ER‐negative breast cancer

Capecitabine‐containing regimens showed no clear difference in pathological complete response (pCR): breast and axillary nodes compared with non‐capecitabine‐containing regimens (high certainty).

1 finding from 1 review

Paravertebral anaesthesia with or without sedation vs general anaesthesia

Need for analgesic prescription for pain (supplemental analgesic requirements) · breast cancer surgery

Paravertebral anaesthesia with or without sedation may leads to lower postoperative analgesic requirement compared with general anaesthesia (low certainty).

1 finding from 1 review

Paravertebral anaesthesia with or without sedation vs general anaesthesia

Number of patients with postoperative nausea and vomiting (postoperative care unit) · breast cancer surgery

Paravertebral anaesthesia with or without sedation probably leads to lower postoperative nausea and vomiting (PONV) compared with general anaesthesia (moderate certainty).

1 finding from 1 review

Intervention not reported

Incidence of a secondary primary breast cancer (e.g. in the contralateral breast) ‐ endocrine therapies not separated (exemestane (AI)/tamoxifen (SERM)/unknown) · women receiving endocrine therapy (selective oestrogen receptor modulator or aromatase inhibitor)
1 finding from 1 review