• Ned Tijdschr Geneeskd · Jan 2012

    Multicenter Study

    [Breast-conserving surgery for breast cancer: still much to be gained].

    • Nicole M A Krekel, Max H Haloua, Sandra Muller, Elisabeth Bergers, Derek H F Rietveld, Sybren Meijers, and M Petrousjka van den Tol.
    • VU medisch centrum, Afd. Chirurgische Oncologie, Amsterdam, the Netherlands.
    • Ned Tijdschr Geneeskd. 2012 Jan 1; 156 (29): A3573.

    ObjectiveTo conduct qualitative research into breast-conserving surgery for palpable and non-palpable breast tumours and the various methods of excising these, measured by the volume exised and surgical radicality.DesignRetrospective, multicentre study.MethodThe pathology reports from 726 patients who had undergone breast-conserving surgery for invasive breast cancer were reviewed for excision volume and radicality. Any excess resected breast tissue was expressed by a Calculated Resection Ratio (CRR) and calculated by dividing the volume of the surgical specimen by the tumour volume plus an ideal 1-cm-margin of tumour-free breast tissue. A CRR of 1.0 meant that the volume excised was ideal; a CRR of 2.0 meant that twice the necessary amount of tissue had been removed.ResultsOf all the 726 tumours, 72% appeared to be palpable. The median CRR in this group was 2.2 (range: 0.1 - 43.0) and the percentage of tumour-involved margins (irradicality) was 22.5%. Of all the non-palpable tumour (n = 201) excisions, 58% had been guided by wire-localisation, 26% by ultrasonography, and 16% by ROLL (Radio-guided Occult Lesion Localization). The CRRs were 2.8, 3.2 and 3.8, respectively (p < 0.05). Ultrasound-guided surgery resulted in the lowest rate of tumour-involved margins (ultrasound-guided: 3.8%, wire-guided localisation: 21.4%, ROLL: 25.0% (p = 0.05)).ConclusionBreast-conserving surgery is associated with an average of a 2 to 4-fold removal of excessive tissue. Nevertheless, 1 out of 5 excisions are not radical. Ultrasound-guided surgery for non-palpable breast cancer is the most effective method for achieving radical excision. A multicentre, prospective, randomised trial has been started to assess whether ultrasound-guided lumpectomy for palpable breast cancer can lead to optimisation of the excision volume and radicality.

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