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  • Zachary W A Klaassen
2017

Factors predicting skeletal-related events in patients with bone metastatic castration-resistant prostate cancer

Klaassen, Z., Howard, L. E., de Hoedt, A., Amling, C. L., Aronson, W. J., Cooperberg, M. R., Kane, C. J., Terris, M. K. & Freedland, S. J., May 1 2017, In : Cancer. 123, 9, p. 1528-1535 8 p.

Research output: Contribution to journalArticle

11 Scopus citations
2016

Suicide risk in patients with bladder cancer

Harper, B. T., Klaassen, Z., DiBianco, J. M., Yaguchi, G., Jen, R. P. & Terris, M. K., Mar 23 2016, In : Journal of Wound, Ostomy and Continence Nursing. 43, 2, p. 170-171 2 p.

Research output: Contribution to journalShort survey

2 Scopus citations

The impact of radical cystectomy and urinary diversion on suicidal death in patients with bladder cancer

Klaassen, Z., DiBianco, J. M., Jen, R. P., Harper, B., Yaguchi, G., Reinstatler, L., Woodard, C., Moses, K. A., Terris, M. K. & Madi, R., Mar 23 2016, In : Journal of Wound, Ostomy and Continence Nursing. 43, 2, p. 152-157 6 p.

Research output: Contribution to journalArticle

8 Scopus citations

Multiple Discordant Histology after Nephrectomy: Descriptive Analysis and Outcomes

Harlow, B. L., Klaassen, Z., Holzman, S., Reinstatler, L., Franken, A. A., Kavuri, S. K., Terris, M. K., Master, V. A. & Moses, K. A., Apr 1 2016, In : Clinical Genitourinary Cancer. 14, 2, p. e171-e175

Research output: Contribution to journalArticle

2 Scopus citations
2018

Molecular characterization of renal cell carcinoma: A potential three-MicroRNA prognostic signature

Lokeshwar, S. D., Talukder, A., Yates, T. J., Hennig, M. J. P., Garcia-Roig, M., Lahorewala, S. S., Mullani, N. N., Klaassen, Z., Kava, B. R., Manoharan, M., Soloway, M. S. & Lokeshwar, V. B., Apr 2018, In : Cancer Epidemiology Biomarkers and Prevention. 27, 4, p. 464-472 9 p.

Research output: Contribution to journalEditorial

20 Scopus citations
2019

Variation and Trends in Antidepressant Prescribing for Men Undergoing Treatment for Nonmetastatic Prostate Cancer: A Population-based Cohort Study

Matta, R., Wallis, C. J. D., Goldenberg, M. G., Hird, A. E., Klaassen, Z., Kulkarni, G., Kodama, R. T., Herschorn, S. & Nam, R. K., Jan 2019, In : European urology. 75, 1, p. 3-7 5 p.

Research output: Contribution to journalArticle

3 Scopus citations

Local therapy in patients with metastatic prostate cancer: A new standard of care?

Harper, B., Klaassen, Z. & Wallis, C. J. D., Dec 1 2019, In : Translational Cancer Research. 8, p. S592-S594

Research output: Contribution to journalComment/debate

Open Access
2018

The association between physician trust and prostate-specific antigen screening: Implications for shared decision-making

Klaassen, Z., Wallis, C. J. D., Goldberg, H., Chandrasekar, T., Fleshner, N. E., Finelli, A., Kulkarni, G. S., Detsky, A. S. & Satkunasivam, R., Dec 2018, In : Canadian Urological Association Journal. 12, 12, p. 395-400 6 p.

Research output: Contribution to journalArticle

2019

Lynch Syndrome in Urologic Malignancies – What Does the Urologist Need to Know?

Goldberg, H., Wallis, C. J. D., Klaassen, Z., Chandrasekar, T., Fleshner, N. & Zlotta, A. R., Dec 2019, In : Urology. 134, p. 24-31 8 p.

Research output: Contribution to journalArticle

2 Scopus citations

Epidemiology and treatment modalities for the management of benign prostatic hyperplasia

Lokeshwar, S. D., Harper, B. T., Webb, E., Jordan, A., Dykes, T. A., Neal, D. E., Terris, M. K. & Klaassen, Z., Jan 1 2019, In : Translational Andrology and Urology. 8, 5, p. 529-539 11 p.

Research output: Contribution to journalReview article

6 Scopus citations
2018

Case ‒ Foamy, high-grade prostatic intraepithelial neoplasia: A false positive for prostate cancer on multiparametric magnetic resonance imaging?

Chandrasekar, T., Goldberg, H., Klaassen, Z., Perlis, N., Finelli, A., Evans, A. & Ghai, S., May 2018, In : Canadian Urological Association Journal. 12, 5, p. E256-E259

Research output: Contribution to journalArticle

2017

Pursuing fellowship training: There are no traffic jams along the extra mile

Klaassen, Z., Jun 2017, In : Canadian Urological Association Journal. 11, 6, p. 161-162 2 p.

Research output: Contribution to journalShort survey

2020

Perioperative venous thromboembolism prophylaxis in prostate cancer surgery

Klaassen, Z., Wallis, C. J. D., Lavallée, L. T. & Violette, P. D., Mar 1 2020, In : World Journal of Urology. 38, 3, p. 593-600 8 p.

Research output: Contribution to journalArticle

1 Scopus citations

“Reverse Stage Migration”: What Can Population-based Data Tell Us About Trends in Prostate Cancer Presentation?

Wallis, C. J. D. & Klaassen, Z. W. A., Sep 1 2018, In : European Urology Oncology. 1, 4, p. 321-322 2 p.

Research output: Contribution to journalEditorial

Comparison of Abiraterone Acetate and Docetaxel with Androgen Deprivation Therapy in High-risk and Metastatic Hormone-naïve Prostate Cancer: A Systematic Review and Network Meta-analysis

Wallis, C. J. D., Klaassen, Z. W. A., Bhindi, B., Goldberg, H., Chandrasekar, T., Farrell, A. M., Boorjian, S. A., Kulkarni, G. S., Karnes, R. J. & Satkunasivam, R., Jun 2018, In : European urology. 73, 6, p. 834-844 11 p.

Research output: Contribution to journalReview article

43 Scopus citations
2019

EDITORIAL COMMENT

Benton, J. Z., Lodh, A., Wallis, C. J. D. & Klaassen, Z. W. A., Oct 2019, In : Urology. 132, p. 47-48 2 p.

Research output: Contribution to journalComment/debate

2018

Preventing clinical progression and need for treatment in patients on active surveillance for prostate cancer

Goldberg, H., Klaassen, Z. W. A., Chandrasekar, T. & Fleshner, N., Jan 1 2018, In : Current Opinion in Urology. 28, 1, p. 46-54 9 p.

Research output: Contribution to journalReview article

2 Scopus citations
2017

Editorial Comment

Klaassen, Z., Aug 1 2017, In : Urology. 106, 1 p.

Research output: Contribution to journalComment/debate

2019

Androgen deprivation therapy and gleason grade: Unravelling implications on survival

Scott, M., Klaassen, Z. & Wallis, C. J. D., Jun 1 2019, In : Translational Cancer Research. 8, 3, p. 729-731 3 p.

Research output: Contribution to journalReview article

2018

Impact of psychiatric illness on decreased survival in elderly patients with bladder cancer in the United States

Jazzar, U., Yong, S., Klaassen, Z., Huo, J., Hughes, B. D., Esparza, E., Mehta, H. B., Kim, S. P., Tyler, D. S., Freedland, S. J., Kamat, A. M., Wolf, D. V. & Williams, S. B., Aug 2018, In : Cancer. 124, 15, p. 3127-3135 9 p.

Research output: Contribution to journalArticle

8 Scopus citations
2017

Contemporary cost-consequence analysis of blue light cystoscopy with hexaminolevulinate in non-muscle-invasive bladder cancer

Klaassen, Z. W. A., Li, K., Kassouf, W., Black, P. C., Dragomir, A. & Kulkarni, G. S., Jun 2017, In : Canadian Urological Association Journal. 11, 6, p. 173-181 9 p.

Research output: Contribution to journalArticle

4 Scopus citations
2020

Effect of Renal Mass Biopsy on Subsequent Nephrectomy Outcomes: A Population-based Assessment

Wallis, C. J. D., Garbens, A., Klaassen, Z., Kodama, R. T., Herschorn, S. & Nam, R. K., Jan 2020, In : European urology. 77, 1, p. 136-137 2 p.

Research output: Contribution to journalLetter

A Systematic Review and Network Meta-analysis of Novel Androgen Receptor Inhibitors in Non-metastatic Castration-resistant Prostate Cancer

Hird, A. E., Magee, D. E., Bhindi, B., Ye, X. Y., Chandrasekar, T., Goldberg, H., Klotz, L., Fleshner, N., Satkunasivam, R., Klaassen, Z. & Wallis, C. J. D., Jan 1 2020, (Accepted/In press) In : Clinical Genitourinary Cancer.

Research output: Contribution to journalReview article

A Novel Splice Variant of HYAL-4 Drives Malignant Transformation and Predicts Outcome in Patients with Bladder Cancer

Lokeshwar, V. B., Morera, D. S., Hasanali, S. L., Yates, T. J., Hupe, M. C., Knapp, J., Lokeshwar, S. D., Wang, J., Hennig, M. J. P., Baskar, R., Escudero, D. O., Racine, R. R., Dhir, N., Jordan, A. R., Hoye, K., Azih, I., Manoharan, M., Klaassen, Z. W. A., Kavuri, S. K., Lopez, L. E. & 2 others, Ghosh, S. & Lokeshwar, B. L., Jul 1 2020, In : Clinical cancer research : an official journal of the American Association for Cancer Research. 26, 13, p. 3455-3467 13 p.

Research output: Contribution to journalArticle

Race does not predict skeletal-related events and all-cause mortality in men with castration-resistant prostate cancer

Patel, D. N., Howard, L. E., De Hoedt, A. M., Amling, C. L., Aronson, W. J., Cooperberg, M. R., Kane, C. J., Klaassen, Z. W., Terris, M. K. & Freedland, S. J., Jul 15 2020, In : Cancer. 126, 14, p. 3274-3280 7 p.

Research output: Contribution to journalArticle

Gender-based psychological and physical distress differences in patients diagnosed with non-metastatic renal cell carcinoma

Ajaj, R., Cáceres, J. O. H., Berlin, A., Wallis, C. J. D., Chandrasekar, T., Klaassen, Z., Ahmad, A. E., Leao, R., Finelli, A., Fleshner, N. & Goldberg, H., Jan 1 2020, (Accepted/In press) In : World Journal of Urology.

Research output: Contribution to journalArticle

1 Scopus citations
Open Access

Molecular targeting of renal cell carcinoma by an oral combination

Jordan, A. R., Wang, J., Yates, T. J., Hasanali, S. L., Lokeshwar, S. D., Morera, D. S., Shamaladevi, N., Li, C. S., Klaassen, Z., Terris, M. K., Thangaraju, M., Singh, A. B., Soloway, M. S. & Lokeshwar, V. B., May 1 2020, In : Oncogenesis. 9, 5, 52.

Research output: Contribution to journalArticle

Open Access
2017

Thoracic trauma in the oldest of the old: An analysis of the nationwide inpatient sample

Mentzer, C. J., Walsh, N. J., Talukder, A., Klaassen, Z. W. A., Leibrandt, R., Ferdinand, C. H. & O'Malley, K. F., May 1 2017, In : American Surgeon. 83, 5, p. 491-494 4 p.

Research output: Contribution to journalArticle

2016

The association of fatty acid levels and gleason grade among men undergoing radical prostatectomy

Zhao, Z., Reinstatler, L., Klaassen, Z. W. A., Xu, Y., Yang, X., Madi, R. H., Terris, M. K., Qian, S. Y., Kelavkar, U. & Moses, K. A., Nov 2016, In : PloS one. 11, 11, e0166594.

Research output: Contribution to journalArticle

2 Scopus citations
2020

Impact of Alzheimer's disease and related dementia diagnosis following treatment for bladder cancer

Jazzar, U., Shan, Y., Klaassen, Z., Freedland, S. J., Kamat, A. M., Raji, M. A., Masel, T., Tyler, D. S., Baillargeon, J., Kuo, Y. F., Mehta, H. B., Bergerot, C. D. & Williams, S. B., Jan 1 2020, (Accepted/In press) In : Journal of Geriatric Oncology.

Research output: Contribution to journalArticle

Racial Discrepancies in Overall Survival among Men Treated with 223Radium

Zhao, H., Howard, L. E., De Hoedt, A., Terris, M. K., Amling, C. L., Kane, C. J., Cooperberg, M. R., Aronson, W. J., Klaassen, Z., Polascik, T. J., Vidal, A. C. & Freedland, S. J., Feb 1 2020, In : The Journal of urology. 203, 2, p. 331-337 7 p.

Research output: Contribution to journalArticle

2 Scopus citations

Psychological distress associated with active surveillance in patients younger than 70 with a small renal mass

Goldberg, H., Ajaj, R., Cáceres, J. O. H., Berlin, A., Chandrasekar, T., Klaassen, Z., Wallis, C. J. D., Ahmad, A. E., Leao, R., Petrella, A. R., Kachura, J. R., Fleshner, N., Matthew, A., Finelli, A., Jewett, M. A. S. & Hamilton, R. J., Jun 2020, In : Urologic Oncology: Seminars and Original Investigations. 38, 6, p. 603.e17-603.e25

Research output: Contribution to journalArticle

2018

Decreasing suicide risk among patients with prostate cancer: Implications for depression, erectile dysfunction, and suicidal ideation screening

Klaassen, Z., Arora, K., Wilson, S. N., King, S. A., Madi, R., Neal, D. E., Kurdyak, P., Kulkarni, G. S., Lewis, R. W. & Terris, M. K., Feb 2018, In : Urologic Oncology: Seminars and Original Investigations. 36, 2, p. 60-66 7 p.

Research output: Contribution to journalReview article

21 Scopus citations

Analysis of Suicide Risk in Patients with Penile Cancer and Review of the Literature

Simpson, W. G., Klaassen, Z. W. A., Jen, R. P., Hughes, W. M., Neal, D. E. & Terris, M. K., Apr 1 2018, In : Clinical Genitourinary Cancer. 16, 2, p. e257-e261

Research output: Contribution to journalReview article

9 Scopus citations
2017

Association of Obesity-Related Hemodilution of Prostate-Specific Antigen, Dihydrotestosterone, and Testosterone

Klaassen, Z., Howard, L. E., Moreira, D. M., Andriole, G. L., Terris, M. K. & Freedland, S. J., Apr 1 2017, In : Prostate. 77, 5, p. 466-470 5 p.

Research output: Contribution to journalArticle

9 Scopus citations

Comorbidity Is a Competing Factor for Disease Recurrence Postnephrectomy

Reinstatler, L., Klaassen, Z., Madi, R., Terris, M. K. & Moses, K. A., May 1 2017, In : Southern medical journal. 110, 5, p. 369-374 6 p.

Research output: Contribution to journalArticle

2019

Are there differences between de novo and secondary upper tract urothelial carcinoma tumors?

Goldberg, H., Cheung, D. C., Chandrasekar, T., Klaassen, Z., Wallis, C. J. D., Kulkarni, G. S., Sayyid, R., Evans, A., Masoomian, M., Bapat, B., Van Der Kwast, T., Hamilton, R. J., Zlotta, A. & Fleshner, N., Jan 1 2019, In : Canadian Urological Association Journal. 13, 9, p. E292-E299

Research output: Contribution to journalArticle

Open Access

First-line Systemic Therapy for Metastatic Renal Cell Carcinoma: A Systematic Review and Network Meta-analysis [Figure presented]

Wallis, C. J. D., Klaassen, Z., Bhindi, B., Ye, X. Y., Chandrasekar, T., Farrell, A. M., Goldberg, H., Boorjian, S. A., Leibovich, B., Kulkarni, G. S., Shah, P. S., Bjarnason, G. A., Heng, D. Y. C., Satkunasivam, R. & Finelli, A., Sep 2018, In : European urology. 74, 3, p. 309-321 13 p.

Research output: Contribution to journalReview article

25 Scopus citations
2019

Extraprostatic Extension in Core Biopsies Epitomizes High-risk but Locally Treatable Prostate Cancer

Goldberg, H., Ramiz, A. H., Glicksman, R., Salgado, N. S., Chandrasekar, T., Klaassen, Z. W. A., Wallis, C. J. D., Hosni, A., Moraes, F. Y., Ghai, S., Kulkarni, G. S., Hamilton, R. J., Perlis, N., Toi, A., Chung, P., Evans, A., van der Kwast, T., Finelli, A., Fleshner, N. & Berlin, A., Feb 2019, In : European Urology Oncology. 2, 1, p. 88-96 9 p.

Research output: Contribution to journalArticle

1 Scopus citations
2018

Does perioperative chemotherapy improve survival in upper tract urothelial carcinoma? A population based analysis

Goldberg, H., Klaassen, Z., Chandrasekar, T., Sayyid, R., Kulkarni, G. S., Hamilton, R. J. & Fleshner, N. E., Apr 10 2018, In : Oncotarget. 9, 27, p. 18797-18810 14 p.

Research output: Contribution to journalArticle

5 Scopus citations
2017
5 Scopus citations
2018

High competing risks minimize real-world utility of adjuvant targeted therapy in renal cell carcinoma: A population-based analysis

Chandrasekar, T., Klaassen, Z., Goldberg, H., Sayyid, R. K., Kulkarni, G. S. & Fleshner, N. E., Mar 30 2018, In : Oncotarget. 9, 24, p. 16731-16743 13 p.

Research output: Contribution to journalArticle

Extended Venous Thromboembolism Prophylaxis after Radical Cystectomy: A Call for Adherence to Current Guidelines

Klaassen, Z., Arora, K., Goldberg, H., Chandrasekar, T., Wallis, C. J. D., Sayyid, R. K., Fleshner, N. E., Finelli, A., Kutikov, A., Violette, P. D. & Kulkarni, G. S., Apr 2018, In : Journal of Urology. 199, 4, p. 906-914 9 p.

Research output: Contribution to journalReview article

9 Scopus citations

Two Cases of Arterioureteral Fistula in the Setting of Previous Radiation Therapy and Indwelling Ureteral Stents: Results of Endovascular Management

Chandrasekar, T., Pugashetti, N., Klaassen, Z., Goldberg, H., Dong, P. & Yap, S. A., Oct 2018, In : Clinical Genitourinary Cancer. 16, 5, p. e979-e983

Research output: Contribution to journalArticle

2019

Immune Checkpoint Blockade plus Axitinib for Renal-Cell Carcinoma

Klaassen, Z. W. A., Satkunasivam, R. & Wallis, C. J. D., Jun 27 2019, In : New England Journal of Medicine. 380, 26, 1 p.

Research output: Contribution to journalLetter

2 Scopus citations

Systematic Review of Factors Associated with the Utilization of Radical Cystectomy for Bladder Cancer

Williams, S. B., Hudgins, H. K., Ray-Zack, M. D., Chamie, K., Smaldone, M. C., Boorjian, S. A., Daneshmand, S., Black, P. C., Kamat, A. M., Goebell, P. J., Seiler, R., Schmitz-Drager, B., Nawroth, R., Baillargeon, J., Klaassen, Z. W. A., Kulkarni, G. S., Kim, S. P., Lee, E. K., Holzbeierlein, J. M., Hollenbeck, B. K. & 1 others, Gore, J. L., Mar 2019, In : European Urology Oncology. 2, 2, p. 119-125 7 p.

Research output: Contribution to journalArticle

8 Scopus citations