Journal
AMERICAN JOURNAL OF SURGERY
Volume 187, Issue 1, Pages 52-57Publisher
EXCERPTA MEDICA INC
DOI: 10.1016/j.amjsurg.2003.04.004
Keywords
breast cancer; sentinel lymph node; biopsy; obesity
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Background: With increasing sentinel lymph node experience, patient subsets associated with lower success rates are being identified. Obesity may be one such subset. Methods: A retrospective review was conducted of breast cancer patients who underwent sentinel lymph node biopsy from March 1997 to September 2002. Factors examined included demographics, body mass index (BMI), breast size, tumor characteristics, lymphoscintigraphy drainage, and success of mapping. Chi-square and exact P values were used for statistical analysis. Results: One hundred seventy-four breast cancer patients had sentinel lymph node biopsy. Sixty-seven patients were normal weight (BMI < 25.1); 56 patients were overweight (BMI 25.1 to 29.9); and 51 patients were obese (BMI > 29.9). Failure to identify a sentinel lymph node and the false negative rate were not statistically different (P = 0.7783 and P = 0.9290, respectively) among the three groups. Conclusions: Obesity has no significant effect on sentinel node identification rate or false negative rate. (C) 2004 Excerpta Medica, Inc. All rights reserved.
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