Erik J. Bergstralh
Mayo Clinic
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Publication
Featured researches published by Erik J. Bergstralh.
Cancer | 2001
Liang Cheng; Horst Zincke; Michael L. Blute; Erik J. Bergstralh; Beth Scherer; David G. Bostwick
The presence of lymph node metastasis is a poor prognostic sign for patients with prostate carcinoma. Results of published reports on survival among patients with lymph node metastasis are difficult to assess because of treatment selections. The extent to which lymph node status will have an impact on a patients survival is uncertain.
Cancer | 1999
Liang Cheng; Michael F. Darson; Erik J. Bergstralh; Jeff Slezak; Robert P. Myers; David G. Bostwick
The correlation of surgical margins and extraprostatic extension (EPE) with progression is uncertain with regard to prostate carcinoma patients treated by radical prostatectomy. The objective of this study was to define factors predictive of cancer progression; emphasis was placed on surgical margins and their relation to extraprostatic extension.
Cancer | 2001
Michael J. Barry; Peter C. Albertsen; Malcolm A. Bagshaw; Michael L. Blute; Richard S. Cox; Richard G. Middleton; Donald F. Gleason M.D.; Horst Zincke; Erik J. Bergstralh; Steven J. Jacobsen
With a lack of data from randomized trials, the optimal management of men with nonmetastatic prostate carcinoma is controversial. The authors sought to define the outcomes of three common strategies for managing patients with nonmetastatic prostate carcinoma: expectant management, radiotherapy, and radical prostatectomy.
Cancer | 2002
Sankar J. Kausik; Michael L. Blute; Thomas J. Sebo; Bradley C. Leibovich; Erik J. Bergstralh; B S Jeff Slezak; Horst Zincke
A significant number of prostate adenocarcinoma patients undergoing radical prostatectomy are found to have microscopic extraprostatic disease extension. A majority of these patients have focal extraprostatic extension limited to one or both sides of the prostate. In addition, positive surgical margins are a common pathologic finding in this patient subgroup. In the current study, the authors evaluated the impact of positive surgical margins as an independent predictive factor for prostate specific antigen (PSA) progression in patients with pT3a/b N0M0 carcinoma.
Cancer | 1998
Michael L. Blute; David G. Bostwick; Thomas M. Seay; K R N Sandra Martin; Jeff Slezak; Erik J. Bergstralh; Horst Zincke
A proposed pathologic (pTNM) classification system for prostate carcinoma was analyzed for its impact on survival outcome in the prostate specific antigen (PSA) era. The impact of margin status on the survival outcome of patients with otherwise organ‐confined disease (i.e., without extraprostatic extension or seminal vesicle involvement) was assessed.
Cancer | 1998
Liang Cheng; Thomas J. Sebo; B S Jeff Slezak; Thomas M. Pisansky; Erik J. Bergstralh; M R N Roxann Neumann; Kenneth A. Iczkowski; Horst Zincke; David G. Bostwick
Salvage radical prostatectomy is a treatment option for patients with recurrent cancer following radiation therapy. This study was conducted to identify predictors of survival for patients treated with salvage radical prostatectomy.
Cancer | 1993
Christopher W. S. Cheng; Erik J. Bergstralh; Horst Zincke
Background. Untreated Stage D1 prostate cancer is associated with a high progression rate. Various treatment modalities involving monotherapy alone have been associated with dismal results. In this retrospective study, the impact of combination therapy, local (surgery or radiation) and systemic (hormonal), compared with that of monotherapy on disease outcome was evaluated.
Cancer | 1999
Liang Cheng; Thomas J. Sebo; John C. Cheville; Thomas M. Pisansky; Jeff Slezak; Erik J. Bergstralh; Anna Pacelli; M R N Roxann Neumann; Horst Zincke; David G. Bostwick
The biologic changes in recurrent prostate carcinoma following radiation therapy are not fully understood. The authors sought to determine the level of p53 protein overexpression and its association with cellular proliferation (Ki‐67 labeling index), glutathione S‐transferase‐π (GST‐π) expression, and other clinical pathologic findings in patients with locally persistent prostate carcinoma after radiation therapy.
Cancer | 1999
Liang Cheng; B S Jeff Slezak; Erik J. Bergstralh; John C. Cheville; Susan Sweat; Horst Zincke; David G. Bostwick
Dedifferentiation is a distinctive feature of cancer progression. Detailed histologic analysis of primary prostate carcinoma and synchronous lymph node metastases may improve our understanding of the complex process of cancer progression and metastasis.
Cancer | 1999
Liang Cheng; Bradley C. Leibovich; Erik J. Bergstralh; Beth G. Scherer; Anna Pacelli; Dharamdas M. Ramnani; Horst Zincke; David G. Bostwick
Alterations of the p53 tumor suppressor gene are associated with advanced stage prostate carcinoma. The biologic significance of p53 nuclear accumulation in prostate cancer patients with regional lymph node metastases is uncertain.