A comparison of long term renal functional outcomes following partial nephrectomy and radiofrequency ablation

Stephen Faddegon, Tom Ju, Ephrem O. Olweny, Zhuowei Liu, WoongKyu Han, Gang Yin, Yung K. Tan, Jeffrey Gahan, Selahattin Bedir, Yun Bo Ma, Samuel K. Park, Ganesh V. Raj, Jeffrey A. Cadeddu

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Introduction: To compare long term glomerular filtration rate (GFR) outcomes of partial nephrectomy and radiofrequency ablation performed for renal malignancy. Materials and methods: Renal function of 347 patients undergoing radiofrequency ablation (n = 142) or partial nephrectomy (n = 205) for renal malignancy between 1994 and 2011 were compared from a retrospective database at a single tertiary care center. Minimum 1 year of follow up was required, resulting in a mean follow up of 48.2 (SD +/- 28.2) months. Renal function was estimated using the Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equation. The primary study outcome was progression of Chronic Kidney Disease (CKD) stage, calculated using the Kaplan-Meier life table method. Multivariate analysis was also conducted to determine the level of association between GFR decline and treatment modality. Results: The 5 year freedom from CKD stage progression for radiofrequency ablation and partial nephrectomy was 85.4% (95% CI 76.8%-91.1%) versus 82.1% (95% CI 73.7%-88.1%) (p = 0.06). A longer follow up interval was associated with greater GFR decline, although hypertension, diabetes, age, and tumor size were not. Conclusion: Radiofrequency ablation provides similar long term renal function preservation benefit as partial nephrectomy.

Original languageEnglish
Pages (from-to)6785-6789
Number of pages5
JournalCanadian Journal of Urology
Volume20
Issue number3
Publication statusPublished - 2013 Jun 1

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Nephrectomy
Kidney
Glomerular Filtration Rate
Chronic Renal Insufficiency
Neoplasms
Life Tables
Tertiary Care Centers
Disease Progression
Epidemiology
Multivariate Analysis
Outcome Assessment (Health Care)
Databases
Hypertension
Therapeutics

All Science Journal Classification (ASJC) codes

  • Urology

Cite this

Faddegon, S., Ju, T., Olweny, E. O., Liu, Z., Han, W., Yin, G., ... Cadeddu, J. A. (2013). A comparison of long term renal functional outcomes following partial nephrectomy and radiofrequency ablation. Canadian Journal of Urology, 20(3), 6785-6789.
Faddegon, Stephen ; Ju, Tom ; Olweny, Ephrem O. ; Liu, Zhuowei ; Han, WoongKyu ; Yin, Gang ; Tan, Yung K. ; Gahan, Jeffrey ; Bedir, Selahattin ; Ma, Yun Bo ; Park, Samuel K. ; Raj, Ganesh V. ; Cadeddu, Jeffrey A. / A comparison of long term renal functional outcomes following partial nephrectomy and radiofrequency ablation. In: Canadian Journal of Urology. 2013 ; Vol. 20, No. 3. pp. 6785-6789.
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abstract = "Introduction: To compare long term glomerular filtration rate (GFR) outcomes of partial nephrectomy and radiofrequency ablation performed for renal malignancy. Materials and methods: Renal function of 347 patients undergoing radiofrequency ablation (n = 142) or partial nephrectomy (n = 205) for renal malignancy between 1994 and 2011 were compared from a retrospective database at a single tertiary care center. Minimum 1 year of follow up was required, resulting in a mean follow up of 48.2 (SD +/- 28.2) months. Renal function was estimated using the Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equation. The primary study outcome was progression of Chronic Kidney Disease (CKD) stage, calculated using the Kaplan-Meier life table method. Multivariate analysis was also conducted to determine the level of association between GFR decline and treatment modality. Results: The 5 year freedom from CKD stage progression for radiofrequency ablation and partial nephrectomy was 85.4{\%} (95{\%} CI 76.8{\%}-91.1{\%}) versus 82.1{\%} (95{\%} CI 73.7{\%}-88.1{\%}) (p = 0.06). A longer follow up interval was associated with greater GFR decline, although hypertension, diabetes, age, and tumor size were not. Conclusion: Radiofrequency ablation provides similar long term renal function preservation benefit as partial nephrectomy.",
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Faddegon, S, Ju, T, Olweny, EO, Liu, Z, Han, W, Yin, G, Tan, YK, Gahan, J, Bedir, S, Ma, YB, Park, SK, Raj, GV & Cadeddu, JA 2013, 'A comparison of long term renal functional outcomes following partial nephrectomy and radiofrequency ablation', Canadian Journal of Urology, vol. 20, no. 3, pp. 6785-6789.

A comparison of long term renal functional outcomes following partial nephrectomy and radiofrequency ablation. / Faddegon, Stephen; Ju, Tom; Olweny, Ephrem O.; Liu, Zhuowei; Han, WoongKyu; Yin, Gang; Tan, Yung K.; Gahan, Jeffrey; Bedir, Selahattin; Ma, Yun Bo; Park, Samuel K.; Raj, Ganesh V.; Cadeddu, Jeffrey A.

In: Canadian Journal of Urology, Vol. 20, No. 3, 01.06.2013, p. 6785-6789.

Research output: Contribution to journalArticle

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T1 - A comparison of long term renal functional outcomes following partial nephrectomy and radiofrequency ablation

AU - Faddegon, Stephen

AU - Ju, Tom

AU - Olweny, Ephrem O.

AU - Liu, Zhuowei

AU - Han, WoongKyu

AU - Yin, Gang

AU - Tan, Yung K.

AU - Gahan, Jeffrey

AU - Bedir, Selahattin

AU - Ma, Yun Bo

AU - Park, Samuel K.

AU - Raj, Ganesh V.

AU - Cadeddu, Jeffrey A.

PY - 2013/6/1

Y1 - 2013/6/1

N2 - Introduction: To compare long term glomerular filtration rate (GFR) outcomes of partial nephrectomy and radiofrequency ablation performed for renal malignancy. Materials and methods: Renal function of 347 patients undergoing radiofrequency ablation (n = 142) or partial nephrectomy (n = 205) for renal malignancy between 1994 and 2011 were compared from a retrospective database at a single tertiary care center. Minimum 1 year of follow up was required, resulting in a mean follow up of 48.2 (SD +/- 28.2) months. Renal function was estimated using the Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equation. The primary study outcome was progression of Chronic Kidney Disease (CKD) stage, calculated using the Kaplan-Meier life table method. Multivariate analysis was also conducted to determine the level of association between GFR decline and treatment modality. Results: The 5 year freedom from CKD stage progression for radiofrequency ablation and partial nephrectomy was 85.4% (95% CI 76.8%-91.1%) versus 82.1% (95% CI 73.7%-88.1%) (p = 0.06). A longer follow up interval was associated with greater GFR decline, although hypertension, diabetes, age, and tumor size were not. Conclusion: Radiofrequency ablation provides similar long term renal function preservation benefit as partial nephrectomy.

AB - Introduction: To compare long term glomerular filtration rate (GFR) outcomes of partial nephrectomy and radiofrequency ablation performed for renal malignancy. Materials and methods: Renal function of 347 patients undergoing radiofrequency ablation (n = 142) or partial nephrectomy (n = 205) for renal malignancy between 1994 and 2011 were compared from a retrospective database at a single tertiary care center. Minimum 1 year of follow up was required, resulting in a mean follow up of 48.2 (SD +/- 28.2) months. Renal function was estimated using the Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equation. The primary study outcome was progression of Chronic Kidney Disease (CKD) stage, calculated using the Kaplan-Meier life table method. Multivariate analysis was also conducted to determine the level of association between GFR decline and treatment modality. Results: The 5 year freedom from CKD stage progression for radiofrequency ablation and partial nephrectomy was 85.4% (95% CI 76.8%-91.1%) versus 82.1% (95% CI 73.7%-88.1%) (p = 0.06). A longer follow up interval was associated with greater GFR decline, although hypertension, diabetes, age, and tumor size were not. Conclusion: Radiofrequency ablation provides similar long term renal function preservation benefit as partial nephrectomy.

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