Abstract:
BACKGROUND:Invasive micropapillary carcinoma (IMPC) of the breast is a rare variant of invasive ductal carcinoma (IDC). The prognosis of IMPC compared with that of IDC remains controversial; we conducted a meta-analysis to evaluate the prognostic difference between IMPC and IDC. METHODS:We searched the PubMed, Cochrane Library, and EMBASE databases for relevant studies comparing overall survival (OS), disease-specific survival (DSS), relapse-free survival (RFS), local-regional recurrence-free survival (LRRFS) or distant metastasis-free survival (DMFS) rates between IMPC and IDC. Fixed-effect and random-effect models were utilized based on the heterogeneity of the eligible studies. Heterogeneity was further evaluated by subgroup and sensitivity analyses. RESULTS:Fourteen studies with 1888 IMPC patients were included in the meta-analysis. The summarized odds ratio (OR) and 95% confidence interval (95% CI) was calculated to estimate the prognostic difference between IMPC and IDC. IMPC patients showed an unfavorable prognosis for RFS (OR; 2.04; 95% CI: 1.63-2.55) and LRRFS (OR: 2.82; 95% CI: 1.90-4.17) compared with IDC. However, no significant difference was observed in OS (OR: 0.93; 95% CI: 0.78-1.10), DSS (OR: 1.16; 95% CI: 0.95-1.40) and DMFS (OR: 0.95; 95% CI: 0.67-1.35) between IMPC and IDC. No obvious statistical heterogeneity was detected, except for DSS. Funnel plots and Egger's tests did not reveal publication bias, except for RFS. CONCLUSIONS:This analysis showed that IMPC patients have a higher rate of loco-regional recurrence than IDC patients. However, OS, DSS and DMFS were not significantly different between IMPC and IDC. These results could help clinicians select therapeutic and follow-up strategies for IMPC patients.
journal_name
BMC Cancerjournal_title
BMC cancerauthors
Wu Y,Zhang N,Yang Qdoi
10.1186/s12885-017-3855-7subject
Has Abstractpub_date
2017-12-11 00:00:00pages
839issue
1issn
1471-2407pii
10.1186/s12885-017-3855-7journal_volume
17pub_type
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