Ipsilateral recurrent breast cancer
– The seventh Dutch Snapshot study –
PARTICIPATING CENTERS
25th January 2020
Rationale
The risk of ipsilateral recurrent breast cancer (IBTR) after breast-conserving treatment (BCT) is approximately 0,5- 1% per year. The gold standard for IBTR has always been salvage mastectomy. However, there is increasing interest in repeat BCT options in selected patients with IBTR. We would like to assess the current clinical practice in The Netherlands.
STUDY DESIGN
The IBTR SNAPSHOT is a nationwide retrospective multicenter registration study. A PALGA search yielded approximately 1500 patients diagnosed with IBTR in 2016 and 2017. Local pathology labs can provide patient identification numbers matching these pathology reports to a local breast surgeon, resident or fellow. Anonimized data gathering is performed via electronic case report forms via ResearchManager.
OBJECTIVE
To evaluate the clinical practice in The Netherlands regarding surgical management of locally recurrent breast cancer after previous breast-conserving therapy in 2016 and 2017.
STUDY POPULATION
Women with IBTR after previous BCT, diagnosed with IBTR in 2016 and 2017
Outcomes
Primary endpoint is the incidence of repeat BCT and salvage mastectomy in the Netherlands. Secondary endpoints are local and systemic (neo)adjuvant treatment regimens for locally recurrent breast cancer and the postoperative complications of both repeat BCT and salvage mastectomy.