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Intraoperative and surgical specimen (ex vivo) ultrasound in the assessment of margins at partial nephrectomy

  • Urology - Original article
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Abstract

Purpose

To correlate the accuracy of intraoperative and surgical specimen (ex vivo) ultrasound (US) with pathological margin status at partial nephrectomy.

Materials and methods

Patients undergoing partial nephrectomy for T1 renal tumours in the period May 2010–January 2014 at a single institution who had intraoperative specimen US were included. PN was performed by standardised technique with intraoperative tumour localisation. Following excision, surgical specimen (ex vivo) US was performed and the margin status was compared to the final histopathological analysis. The specificity of US to identify margin status was calculated as was the correlation between the ultrasonographic and final pathological margin.

Results

Forty-five patients were included (median age 61 years). Mean tumour size was 28.1 ± 10 mm, and 89 % were renal cell carcinomas with the remainder being oncocytomas. Forty-four cases had negative surgical margins on pathological analysis, and US had a specificity of 100 %. There was a strong correlation between the margin as measured on US and final analysis (Pearson’s r = 0.86, p < 0.001).

Conclusion

Results show that intraoperative, surgical specimen (ex vivo) US control of resection margins in patients undergoing PN is feasible and efficient. It represents a promising tool to ensure margin negativity during PN.

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No funding was required for this study.

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Correspondence to R. Veeratterapillay.

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All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

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Informed consent was obtained from all individual participants included in the study.

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Veeratterapillay, R., Bromby, A., Patel, A. et al. Intraoperative and surgical specimen (ex vivo) ultrasound in the assessment of margins at partial nephrectomy. Int Urol Nephrol 47, 1665–1669 (2015). https://doi.org/10.1007/s11255-015-1083-0

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  • DOI: https://doi.org/10.1007/s11255-015-1083-0

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