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<front>
<journal-meta>
<journal-id journal-id-type="nlm-ta">J Korean Surg Soc</journal-id>
<journal-id journal-id-type="publisher-id">JKSS</journal-id>
<journal-title>Journal of the Korean Surgical Society</journal-title>
<issn pub-type="ppub">1226-0053</issn>
<publisher>
<publisher-name>The Korean Surgical Society</publisher-name>
</publisher>
</journal-meta>

<article-meta>

<article-id pub-id-type="doi">10.4174/jkss.2009.77.4.238</article-id>

<article-categories>
<subj-group>
<subject>Original Article</subject>
</subj-group>
</article-categories>
<title-group>
<article-title>Prognostic Factors Influence on the Systemic Recurrence in Axillary Lymph Node Negative Breast Cancer</article-title>
</title-group>

<contrib-group>

<contrib contrib-type="author"> 
<name>
<surname>Lee</surname>
<given-names>Hee Seung</given-names>
</name>
<degrees>M.D.</degrees>
<xref ref-type="aff" rid="A1"></xref>
</contrib>

<contrib contrib-type="author" corresp="yes">
<name>
<surname>Kwak</surname>
<given-names>Beom Seok</given-names>
</name>
<degrees>M.D.</degrees>
<xref ref-type="aff" rid="A1"></xref>
</contrib>

<contrib contrib-type="author"> 
<name>
<surname>Son</surname>
<given-names>Byung Ho</given-names>
</name>
<degrees>M.D.</degrees>
<xref ref-type="aff" rid="A2">1</xref>
</contrib>

<contrib contrib-type="author"> 
<name>
<surname>Ahn</surname>
<given-names>Sei Hyun</given-names>
</name>
<degrees>M.D.</degrees>
<xref ref-type="aff" rid="A2">1</xref>
</contrib>

</contrib-group>

<aff id="A1">Department of Surgery, Dongguk University, College of Medicine, Dongguk University Ilsan Hospital, Goyang, Korea.</aff>
<aff id="A2"><label>1</label>Department of Surgery, Ulsan University, College of Medicine, Asan Medical Center, Seoul, Korea.</aff>

<author-notes>
<corresp>Corresponding author (<email>kbs@duih.org</email>)</corresp>
</author-notes>

<pub-date pub-type="ppub">
<month>10</month>
<year>2009</year>
</pub-date>
<pub-date pub-type="epub">
<day>30</day>
<month>09</month>
<year>2009</year>
</pub-date>
<volume>77</volume>
<issue>4</issue>
<fpage>238</fpage>
<lpage>245</lpage>
<history>
<date date-type="received">
<day>05</day>
<month>06</month>
<year>2009</year>
</date>
<date date-type="accepted">
<day>23</day>
<month>07</month>
<year>2009</year>
</date>
</history>
<permissions>
<copyright-statement>Copyright &#x00A9; 2009 The Korean Surgical Society</copyright-statement>
<copyright-year>2009</copyright-year>
</permissions>

<abstract>
<sec>
<title>Purpose</title>
<p>Axillary lymph node metastasis is one of the most important prognostic factors in breast cancer. Previous reports show differences that clinicopathologic factors influence the systemic recurrence and survival in axillary lymph node negative breast cancer. Thus, we have attempted to determine the prognostic factors influence on the systemic recurrence and survival in axillary lymph node negative breast cancer.</p>
</sec>
<sec>
<title>Methods</title>
<p>We retrospectively reviewed the data of 1,351 node negative breast cancer patients who underwent curative surgery to determine the prognostic factors such as age, sex, body mass index (BMI), family history, bilateral breast cancer, operation method, tumor size, stage, histologic grade, number of resected lymph nodes, hormone receptor status, overexpression of p53 and c-erbB2, and adjuvant therapy that influence the systemic recurrence and 10-year-distant relapse-free survival.</p>
</sec>
<sec>
<title>Results</title>
<p>Systemic recurrence occurred in 58 patients (4.3&#x0025;) during 53.3 months median follow up period. The tumor size (P=0.001), stage (P=0.005), histologic grade (P=0.049). ER (P=0.028), PR (P=0.002), overexpression of p53 (P=0.001) and bilateral breast cancer (P=0.043) were statistically significant factors that influenced the systemic recurrence. In multivariate analysis, only tumor size was associated with the systemic recurrence (P=0.003). Tumor size (P=0.004), histologic grade (P=0.035), ER (P=0.046), PR (P=0.001) and bilateral cancer (P=0.003) were statistically significant factors that influenced 10-year-distant relapse-free survival.</p>
</sec>
<sec>
<title>Conclusion</title>
<p>The larger tumor size was determined to be an independent prognostic value in axillary lymph node negative breast cancer.</p>
</sec>
</abstract>

<kwd-group>
<kwd>Axillary lymph node negative breast cancer</kwd>
<kwd>Systemic recurrence</kwd>
<kwd>Prognostic factor</kwd>
</kwd-group>

</article-meta>
</front>

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</back>

<floats-wrap>

<fig position="float" id="F1">
<label>Fig. 1</label>
<caption>
  <p>10-year-distant relapse-free survival according to tumor size (A), histologic grade (B), estrogen receptor (C), progesterone receptor (D), p53 overexpression (E), and bilateral breast cancer (F).</p>
</caption>
<graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="jkss-77-238-g001" alt-version="no"></graphic>
</fig>

<table-wrap position="float" id="T1">
<label>Table 1</label>
<caption>
  <p>Systemic recurrence according to the clinicopathologic factors</p>
</caption>
<graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="jkss-77-238-i001" alt-version="no"></graphic>
<table-wrap-foot>
<fn>
  <p><sup>&#x002A;</sup>BCS = breast conserving surgery; <sup>&#x2020;</sup>BMI = body mass index.</p>
</fn>
</table-wrap-foot>
</table-wrap>

<table-wrap position="float" id="T2">
<label>Table 2</label>
<caption>
  <p>Multivariate analysis of risk factors for systemic recurrence</p>
</caption>
<graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="jkss-77-238-i002" alt-version="no"></graphic>
</table-wrap>

</floats-wrap>

</article>