Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review
Breast cancer recurrence after reoperation for surgical bleeding. / Pedersen, Rikke Nørgaard; Bhaskaran, K; Heide-Jørgensen, U; Nørgaard, Mette; Christiansen, P M; Kroman, N; Sørensen, Henrik Toft; Cronin-Fenton, D P.
In: British Journal of Surgery, Vol. 104, No. 12, 11.2017, p. 1665-1674.Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review
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TY - JOUR
T1 - Breast cancer recurrence after reoperation for surgical bleeding
AU - Pedersen, Rikke Nørgaard
AU - Bhaskaran, K
AU - Heide-Jørgensen, U
AU - Nørgaard, Mette
AU - Christiansen, P M
AU - Kroman, N
AU - Sørensen, Henrik Toft
AU - Cronin-Fenton, D P
N1 - © 2017 The Authors. BJS published by John Wiley & Sons Ltd on behalf of BJS Society Ltd.
PY - 2017/11
Y1 - 2017/11
N2 - BACKGROUND: Bleeding activates platelets that can bind tumour cells, potentially promoting metastatic growth in patients with cancer. This study investigated whether reoperation for postoperative bleeding is associated with breast cancer recurrence.METHODS: Using the Danish Breast Cancer Group database and the Danish National Patient Register (DNPR), a cohort of women with incident stage I-III breast cancer, who underwent breast-conserving surgery or mastectomy during 1996-2008 was identified. Information on reoperation for bleeding within 14 days of the primary surgery was retrieved from the DNPR. Follow-up began 14 days after primary surgery and continued until breast cancer recurrence, death, emigration, 10 years of follow-up, or 1 January 2013. Incidence rates of breast cancer recurrence were calculated and Cox regression models were used to quantify the association between reoperation and recurrence, adjusting for potential confounders. Crude and adjusted hazard ratios according to site of recurrence were calculated.RESULTS: Among 30 711 patients (205 926 person-years of follow-up), 767 patients had at least one reoperation within 14 days of primary surgery, and 4769 patients developed breast cancer recurrence. Median follow-up was 7·0 years. The incidence of recurrence was 24·0 (95 per cent c.i. 20·2 to 28·6) per 1000 person-years for reoperated patients and 23·1 (22·5 to 23·8) per 1000 person-years for non-reoperated patients. The overall adjusted hazard ratio was 1·06 (95 per cent c.i. 0·89 to 1·26). The estimates did not vary by site of breast cancer recurrence.CONCLUSION: In this large cohort study, there was no evidence of an association between reoperation for bleeding and breast cancer recurrence.
AB - BACKGROUND: Bleeding activates platelets that can bind tumour cells, potentially promoting metastatic growth in patients with cancer. This study investigated whether reoperation for postoperative bleeding is associated with breast cancer recurrence.METHODS: Using the Danish Breast Cancer Group database and the Danish National Patient Register (DNPR), a cohort of women with incident stage I-III breast cancer, who underwent breast-conserving surgery or mastectomy during 1996-2008 was identified. Information on reoperation for bleeding within 14 days of the primary surgery was retrieved from the DNPR. Follow-up began 14 days after primary surgery and continued until breast cancer recurrence, death, emigration, 10 years of follow-up, or 1 January 2013. Incidence rates of breast cancer recurrence were calculated and Cox regression models were used to quantify the association between reoperation and recurrence, adjusting for potential confounders. Crude and adjusted hazard ratios according to site of recurrence were calculated.RESULTS: Among 30 711 patients (205 926 person-years of follow-up), 767 patients had at least one reoperation within 14 days of primary surgery, and 4769 patients developed breast cancer recurrence. Median follow-up was 7·0 years. The incidence of recurrence was 24·0 (95 per cent c.i. 20·2 to 28·6) per 1000 person-years for reoperated patients and 23·1 (22·5 to 23·8) per 1000 person-years for non-reoperated patients. The overall adjusted hazard ratio was 1·06 (95 per cent c.i. 0·89 to 1·26). The estimates did not vary by site of breast cancer recurrence.CONCLUSION: In this large cohort study, there was no evidence of an association between reoperation for bleeding and breast cancer recurrence.
KW - Adult
KW - Aged
KW - Aged, 80 and over
KW - Breast Neoplasms
KW - Denmark
KW - Female
KW - Follow-Up Studies
KW - Humans
KW - Incidence
KW - Mastectomy
KW - Mastectomy, Segmental
KW - Middle Aged
KW - Neoplasm Recurrence, Local
KW - Postoperative Hemorrhage
KW - Registries
KW - Reoperation
KW - Risk Factors
KW - Journal Article
U2 - 10.1002/bjs.10592
DO - 10.1002/bjs.10592
M3 - Journal article
C2 - 28782800
VL - 104
SP - 1665
EP - 1674
JO - British Journal of Surgery
JF - British Journal of Surgery
SN - 0007-1323
IS - 12
ER -