title: Prognostic significance of microvessel density in breast cancer of Thai women.
abstract: OBJECTIVE
  Angiogenesis is important in the process of tumor growth and progression of breast cancer Microvessel density (MVD) is the most commonly used technique to quantify intratumoral angiogenesis in breast cancer. In the present study, the authors investigated the prognostic indicator of intratumoral MVD in predicting overall survival, disease recurrence, and distance metastasis of breast cancer.
  
  
  METHODS
  Two hundred patients who were diagnosed as invasive breast cancer from January 2000 to December 2004 were included in the present study, but only 64 patients had complete pathological specimens and tumor receptor studies. Representative paraffin sections of the primary tumor including the tumor border were immunostained with a monoclonal anti-CD34 antibody. The area of highest vascular density ("hot spot") was identified and the average count of three hot spots in each tumor was used for analyses. The distribution of MVD was categorized into high and low MVD as more than 76 and less than 76 respectively. Overall survival probability was estimated by the Kaplan-Meier method. A multivariate Cox regression was employed to examine the relationship between MVD and disease outcomes while adjusting for other concomitant variables.
  
  
  RESULTS
  The tumor size and more advanced disease have correlated with poor outcomes of invasive breast cancer. Tumor size is a poor predictor for local recurrence [Harzard ratio 1.02 (95% CI 0.99-1.04)] and more disease staging have correlated with distance metastases [Harzard ratio 1.48 (95% CI 0.98-2.24)]. The cancer staging only predicted poor outcome in invasive breast cancer in overall recurrence [Harzard ratio 1.51 (95% CI 1.05-2.16)]. MVD is not correlated with both tumor recurrence and distance metastases [Hazard ratio for local recurrence 1.01 (95% CI 0.99-1.04) and Harzard ratio 1.00 (95% CI 0.97-1.02)].
  
  
  CONCLUSIONS
  The microvessel density (MVD) has not predicted poor outcomes of invasive breast cancer in Thai woman.
authors: Department of Surgery, Ramathibodi Hospital, Bangkok 10400, Thailand.
authors: Siroj
authors: S
authors: Kanjanapanjapol
authors: Sansanee
authors: S
authors: Wongwaisayawan
authors: Samart
authors: S
authors: Phuwapraisirisan
authors: Chumpon
authors: C
authors: Wilasrusmee
mesh_terms: D000328:Adult; D000368:Aged; D001943:Breast Neoplasms / Q000276:immunology / Q000401:mortality / Q000473:pathology*; D005260:Female; D006801:Humans; D008875:Middle Aged; D009389:Neovascularization, Pathologic / Q000473:pathology*; D011379:Prognosis; D011446:Prospective Studies; D013785:Thailand; D016896:Treatment Outcome