Do waiting times for surgery have an impact on breast cancer tumour sizes?
Association of Breast Surgery ePoster Library. Robat S. 05/13/19; 257085; P041
Ms. Suzanne Robat
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P041
Topic: Breast surgery
Background: Over the years, breast cancer incidence rates have been increasing, putting more pressure on the health service. With this yearly increase and the limitation of recourses, there is always some waiting between presentation, diagnosis and treatment.This retrospective audit is to evaluate tumour growth while waiting for surgery (Approved by NHS Grampian clinical effectiveness team). Methods Patients diagnosed with breast cancer who underwent wire guided wide local excision at Aberdeen Royal Infirmary (ARI) in 2017 were identified and the first 100 were included. 62 of these patients had a measurable lesion on Mammogram at presentation and on the day of surgery. The tumour diameters were measured by two radiologists independently comparing the mammograms at presentation and on the day of surgery. Tumour sizes were calculated as well as the difference between the sizes on presentation and on the day of surgery. Results: The two radiologists had an Intraclass Correlation Coefficient of 0.812, showing that their measurements were in good agreement. Waiting times averaged 70 days. Paired t-test showed there was no significant difference between tumour volumes on mammograms taken at initial detection and on mammograms take on the day of surgery (p = 0.76). Different waiting times from initial detection to surgery did not affect tumour volume significantly either (p = 0 .92). Paired t-test also showed that tumours did not change in grades significantly either (p = 0.235). Conclusions: Delays in treatment did not cause significant increase in tumour size or cause an advancement in tumour grade.
Topic: Breast surgery
Background: Over the years, breast cancer incidence rates have been increasing, putting more pressure on the health service. With this yearly increase and the limitation of recourses, there is always some waiting between presentation, diagnosis and treatment.This retrospective audit is to evaluate tumour growth while waiting for surgery (Approved by NHS Grampian clinical effectiveness team). Methods Patients diagnosed with breast cancer who underwent wire guided wide local excision at Aberdeen Royal Infirmary (ARI) in 2017 were identified and the first 100 were included. 62 of these patients had a measurable lesion on Mammogram at presentation and on the day of surgery. The tumour diameters were measured by two radiologists independently comparing the mammograms at presentation and on the day of surgery. Tumour sizes were calculated as well as the difference between the sizes on presentation and on the day of surgery. Results: The two radiologists had an Intraclass Correlation Coefficient of 0.812, showing that their measurements were in good agreement. Waiting times averaged 70 days. Paired t-test showed there was no significant difference between tumour volumes on mammograms taken at initial detection and on mammograms take on the day of surgery (p = 0.76). Different waiting times from initial detection to surgery did not affect tumour volume significantly either (p = 0 .92). Paired t-test also showed that tumours did not change in grades significantly either (p = 0.235). Conclusions: Delays in treatment did not cause significant increase in tumour size or cause an advancement in tumour grade.
P041
Topic: Breast surgery
Background: Over the years, breast cancer incidence rates have been increasing, putting more pressure on the health service. With this yearly increase and the limitation of recourses, there is always some waiting between presentation, diagnosis and treatment.This retrospective audit is to evaluate tumour growth while waiting for surgery (Approved by NHS Grampian clinical effectiveness team). Methods Patients diagnosed with breast cancer who underwent wire guided wide local excision at Aberdeen Royal Infirmary (ARI) in 2017 were identified and the first 100 were included. 62 of these patients had a measurable lesion on Mammogram at presentation and on the day of surgery. The tumour diameters were measured by two radiologists independently comparing the mammograms at presentation and on the day of surgery. Tumour sizes were calculated as well as the difference between the sizes on presentation and on the day of surgery. Results: The two radiologists had an Intraclass Correlation Coefficient of 0.812, showing that their measurements were in good agreement. Waiting times averaged 70 days. Paired t-test showed there was no significant difference between tumour volumes on mammograms taken at initial detection and on mammograms take on the day of surgery (p = 0.76). Different waiting times from initial detection to surgery did not affect tumour volume significantly either (p = 0 .92). Paired t-test also showed that tumours did not change in grades significantly either (p = 0.235). Conclusions: Delays in treatment did not cause significant increase in tumour size or cause an advancement in tumour grade.
Topic: Breast surgery
Background: Over the years, breast cancer incidence rates have been increasing, putting more pressure on the health service. With this yearly increase and the limitation of recourses, there is always some waiting between presentation, diagnosis and treatment.This retrospective audit is to evaluate tumour growth while waiting for surgery (Approved by NHS Grampian clinical effectiveness team). Methods Patients diagnosed with breast cancer who underwent wire guided wide local excision at Aberdeen Royal Infirmary (ARI) in 2017 were identified and the first 100 were included. 62 of these patients had a measurable lesion on Mammogram at presentation and on the day of surgery. The tumour diameters were measured by two radiologists independently comparing the mammograms at presentation and on the day of surgery. Tumour sizes were calculated as well as the difference between the sizes on presentation and on the day of surgery. Results: The two radiologists had an Intraclass Correlation Coefficient of 0.812, showing that their measurements were in good agreement. Waiting times averaged 70 days. Paired t-test showed there was no significant difference between tumour volumes on mammograms taken at initial detection and on mammograms take on the day of surgery (p = 0.76). Different waiting times from initial detection to surgery did not affect tumour volume significantly either (p = 0 .92). Paired t-test also showed that tumours did not change in grades significantly either (p = 0.235). Conclusions: Delays in treatment did not cause significant increase in tumour size or cause an advancement in tumour grade.
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