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Kazama A, Munoz-Lopez C, Attawettayanon W, Boumitri M, Maina E, Lone Z, Rathi N, Lewis K, Campbell RA, Palacios DA, Kaouk J, Haber GP, Haywood S, Almassi N, Weight CJ, Remer EM, Ward R, Nowacki AS, Campbell SC. Parenchymal obliteration by renal masses: Functional and oncologic implications. Urol Oncol 2024; 42:247.e11-247.e19. [PMID: 38729867 DOI: 10.1016/j.urolonc.2024.04.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 03/14/2024] [Accepted: 04/18/2024] [Indexed: 05/12/2024]
Abstract
OBJECTIVES Most renal tumors merely displace nephrons while others can obliterate parenchyma in an invasive manner. Substantial parenchymal volume replacement (PVR) by renal cell carcinoma (RCC) may have oncologic implications; however, studies regarding PVR remain limited. Our objective was to evaluate the oncologic implications associated with PVR using improved methodology including more accurate and objective tools. PATIENTS/METHODS A total of 1,222 patients with non-metastatic renal tumors managed with partial nephrectomy (PN) or radical nephrectomy (RN) at Cleveland Clinic (2011-2014) with necessary studies were retrospectively evaluated. Parenchymal volume analysis via semiautomated software was used to estimate split renal function and preoperative parenchymal volumes. Using the contralateral kidney as a control, %PVR was defined: (parenchymal volumecontralateral-parenchymal volumeipsilateral) normalized by parenchymal volumecontralateral x100%. PVR was determined preoperatively and not altered by management. Patients were grouped by degree of PVR: minimal (<5%, N = 566), modest (5%-25%, N = 414), and prominent (≥25%, N = 142). Kaplan-Meier was used to evaluate survival outcomes relative to degree of PVR. Multivariable Cox-regression models evaluated predictors of recurrence-free survival (RFS). RESULTS Of 1,122 patients, 801 (71%) were selected for PN and 321 (29%) for RN. Overall, median tumor size was 3.1 cm and 6.8 cm for PN and RN, respectively, and median follow-up was 8.6 years. Median %PVR was 15% (IQR = 6%-29%) for patients selected for RN and negligible for those selected for PN. %PVR correlated inversely with preoperative ipsilateral GFR (r = -0.49, P < 0.01) and directly with advanced pathologic stage, high tumor grade, clear cell histology, and sarcomatoid features (all P < 0.01). PVR≥25% associated with shortened recurrence-free, cancer-specific, and overall survival (all P < 0.01). Male sex, ≥pT3a, tumor grade 4, positive surgical margins, and PVR≥25% independently associated with reduced RFS (all P < 0.02). CONCLUSIONS Obliteration of normal parenchyma by RCC substantially impacts preoperative renal function and patient selection. Our data suggests that increased PVR is primarily driven by aggressive tumor characteristics and independently associates with reduced RFS, although further studies will be needed to substantiate our findings.
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Affiliation(s)
- Akira Kazama
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH; Department of Urology, Molecular Oncology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Carlos Munoz-Lopez
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH
| | - Worapat Attawettayanon
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH; Division of Urology, Department of Surgery, Faculty of Medicine, Songklanagarind Hospital, Prince of Songkla University, Songkhla, Thailand
| | - Melissa Boumitri
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH
| | - Eran Maina
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH
| | - Zaeem Lone
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH
| | - Nityam Rathi
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH
| | - Kieran Lewis
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH
| | - Rebecca A Campbell
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH
| | | | - Jihad Kaouk
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH
| | | | - Samuel Haywood
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH
| | - Nima Almassi
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH
| | | | | | - Ryan Ward
- Imaging Institute, Cleveland Clinic, Cleveland OH
| | - Amy S Nowacki
- Department of Quantitative Sciences, Cleveland Clinic, Cleveland, OH
| | - Steven C Campbell
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH.
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Kazama A, Attawettayanon W, Munoz-Lopez C, Rathi N, Lewis K, Maina E, Campbell RA, Lone Z, Boumitri M, Kaouk J, Haber GP, Haywood S, Almassi N, Weight C, Li J, Campbell SC. Parenchymal volume preservation during partial nephrectomy: improved methodology to assess impact and predictive factors. BJU Int 2024; 134:219-228. [PMID: 38355293 DOI: 10.1111/bju.16300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2024]
Abstract
OBJECTIVE To rigorously evaluate the impact of the percentage of parenchymal volume preserved (PPVP) and how well the preserved parenchyma recovers from ischaemia (Recischaemia) on functional outcomes after partial nephrectomy (PN) using an accurate and objective software-based methodology for estimating parenchymal volumes and split renal function (SRF). A secondary objective was to assess potential predictors of the PPVP. PATIENTS AND METHODS A total of 894 PN patients with available studies (2011-2014) were evaluated. The PPVP was measured from cross-sectional imaging at ≤3 months before and 3-12 months after PN using semi-automated software. Pearson correlation evaluated relationships between continuous variables. Multivariable linear regression evaluated predictors of ipsilateral glomerular filtration rate (GFR) preserved and the PPVP. Relative-importance analysis was used to evaluate the impact of the PPVP on ipsilateral GFR preserved. Recischaemia was defined as the percentage of ipsilateral GFR preserved normalised by the PPVP. RESULTS The median tumour size and R.E.N.A.L. nephrometry score were 3.4 cm and 7, respectively. In all, 49 patients (5.5%) had a solitary kidney. In all, 538 (60%)/251 (28%)/104 (12%) patients were managed with warm/cold/zero ischaemia, respectively. The median pre/post ipsilateral GFRs were 40/31 mL/min/1.73 m2, and the median (interquartile range [IQR]) percentage of ipsilateral GFR preserved was 80% (71-88%). The median pre/post ipsilateral parenchymal volumes were 181/149 mL, and the median (IQR) PPVP was 84% (76-92%). In all, 330 patients (37%) had a PPVP of <80%, while only 34 (4%) had a Recischaemia of <80%. The percentage of ipsilateral GFR preserved correlated strongly with the PPVP (r = 0.83, P < 0.01) and loss of parenchymal volume accounted for 80% of the loss of ipsilateral GFR. Multivariable analysis confirmed that the PPVP was the strongest predictor of ipsilateral GFR preserved. Greater tumour size and endophytic and nearness properties of the R.E.N.A.L. nephrometry score were associated with a reduced PPVP (all P ≤ 0.01). Solitary kidney and cold ischaemia were associated with an increased PPVP (all P < 0.05). CONCLUSIONS A reduced PPVP predominates regarding functional decline after PN, although a low Recischaemia can also contribute. Tumour-related factors strongly influence the PPVP, while surgical efforts can improve the PPVP as observed for patients with solitary kidneys.
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Affiliation(s)
- Akira Kazama
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA
- Department of Urology, Molecular Oncology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Worapat Attawettayanon
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA
- Division of Urology, Department of Surgery, Faculty of Medicine, Songklanagarind Hospital, Prince of Songkla University, Songkhla, Thailand
| | - Carlos Munoz-Lopez
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Nityam Rathi
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Kieran Lewis
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Eran Maina
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Rebecca A Campbell
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Zaeem Lone
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Melissa Boumitri
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Jihad Kaouk
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA
| | | | - Samuel Haywood
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Nima Almassi
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Christopher Weight
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Jianbo Li
- Department of Quantitative Health Sciences, Cleveland Clinic, Cleveland, OH, USA
| | - Steven C Campbell
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA
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Rathi N, Attawettayanon W, Kazama A, Yasuda Y, Munoz-Lopez C, Lewis K, Maina E, Wood A, Palacios DA, Li J, Abdallah N, Weight CJ, Eltemamy M, Krishnamurthi V, Abouassaly R, Campbell SC. Practical Prediction of New Baseline Renal Function After Partial Nephrectomy. Ann Surg Oncol 2024; 31:1402-1409. [PMID: 38006535 DOI: 10.1245/s10434-023-14540-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 10/19/2023] [Indexed: 11/27/2023]
Abstract
BACKGROUND Partial nephrectomy (PN) is generally preferred for localized renal masses due to strong functional outcomes. Accurate prediction of new baseline glomerular filtration rate (NBGFR) after PN may facilitate preoperative counseling because NBGFR may affect long-term survival, particularly for patients with preoperative chronic kidney disease. Methods for predicting parenchymal volume preservation, and by extension NBGFR, have been proposed, including those based on contact surface area (CSA) or direct measurement of tissue likely to be excised/devascularized during PN. We previously reported that presuming 89% of global GFR preservation (the median value saved from previous, independent analyses) is as accurate as the more subjective/labor-intensive CSA and direct measurement approaches. More recently, several promising complex/multivariable predictive algorithms have been published, which typically include tumor, patient, and surgical factors. In this study, we compare our conceptually simple approach (NBGFRPost-PN = 0.90 × GFRPre-PN) with these sophisticated algorithms, presuming that an even 90% of the global GFR is saved with each PN. PATIENTS AND METHODS A total of 631 patients with bilateral kidneys who underwent PN at Cleveland Clinic (2012-2014) for localized renal masses with available preoperative/postoperative GFR were analyzed. NBGFR was defined as the final GFR 3-12 months post-PN. Predictive accuracies were assessed from correlation coefficients (r) and mean squared errors (MSE). RESULTS Our conceptually simple approach based on uniform 90% functional preservation had equivalent r values when compared with complex, multivariable models, and had the lowest degree of error when predicting NBGFR post-PN. CONCLUSIONS Our simple formula performs equally well as complex algorithms when predicting NBGFR after PN. Strong anchoring by preoperative GFR and minimal functional loss (≈ 10%) with the typical PN likely account for these observations. This formula is practical and can facilitate counseling about expected postoperative functional outcomes after PN.
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Affiliation(s)
- Nityam Rathi
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Worapat Attawettayanon
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA
- Division of Urology, Department of Surgery, Faculty of Medicine, Songklanagarind Hospital, Prince of Songkla University, Songkhla, Thailand
| | - Akira Kazama
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA
- Department of Urology, Division of Molecular Oncology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Yosuke Yasuda
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA
- Department of Urology, Tokyo Medical and Dental University, Tokyo, Japan
| | - Carlos Munoz-Lopez
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Kieran Lewis
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Eran Maina
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Andrew Wood
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Diego A Palacios
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Jianbo Li
- Department of Quantitative Health Sciences, Cleveland Clinic, Cleveland, OH, USA
| | - Nour Abdallah
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA
| | | | - Mohamed Eltemamy
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA
| | | | - Robert Abouassaly
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Steven C Campbell
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA.
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Attawettayanon W, Yasuda Y, Zhang JH, Rathi N, Munoz-Lopez C, Kazama A, Lewis K, Ponvilawan B, Shah S, Wood A, Li J, Accioly JPE, Campbell RA, Zabell J, Kaouk J, Haber GP, Eltemamy M, Krishnamurthi V, Abouassaly R, Weight C, Campbell SC. Functional recovery after partial nephrectomy in a solitary kidney. Urol Oncol 2024; 42:32.e17-32.e27. [PMID: 38142208 DOI: 10.1016/j.urolonc.2023.12.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 11/13/2023] [Accepted: 12/02/2023] [Indexed: 12/25/2023]
Abstract
OBJECTIVES Partial nephrectomy (PN) is the reference standard for renal mass in a solitary kidney (RMSK), although factors determining functional recovery in this setting remain poorly defined. PATIENTS/METHODS Single center, retrospective analysis of 841 RMSK patients (1975-2022) managed with PN with functional data, including 361/435/45 with cold/warm/zero ischemia, respectively. A total of 155 of these patients also had necessary studies for detailed analysis of parenchymal volume preserved. Acute kidney injury (AKI) was classified by RIFLE (Risk/Injury/Failure/Loss/Endstage). Recovery-from-ischemia (Rec-Ischemia) was defined as glomerular filtration rate (GFR) saved normalized by parenchymal volume saved. Logistic regression identified predictive factors for AKI and predictors of Rec-Ischemia were analyzed by multivariable linear regression. RESULTS Overall, median preoperative GFR was 56.7 ml/min/1.73m2 and new-baseline and 5-year GFRs were 43.1 and 44.5 ml/min/1.73m2, respectively. Median follow-up was 55 months; 5-year dialysis-free survival was 97%. In the detailed analysis cohort, a primary focus of this study, median warm (n = 70)/cold (n = 85) ischemia times were 25/34 minutes, respectively; and median preoperative, new-baseline and 5-year GFRs were 57.8, 45.0, and 41.7 ml/min/1.73m2, respectively. Functional recovery correlated strongly with parenchymal volume preserved (r = 0.84, p < 0.001). Parenchymal volume loss accounted for 69% of the total median GFR decline associated with PN, leaving only 3 to 4 ml/min/1.73m2 attributed to ischemia and other factors. AKI occurred in 52% of patients and the only independent predictor of AKI was ischemia time. Independent predictors of reduced Rec-Ischemia were increased age, warm ischemia, and AKI. CONCLUSION The main determinant of functional recovery after PN in RMSK is parenchymal volume preservation. Type/duration of ischemia, AKI, and age also correlated, although altogether their contributions were less impactful. Our findings suggest multiple opportunities for optimizing functional outcomes although preservation of parenchymal volume remains predominant. Long-term function generally remains stable with dialysis only occasionally required.
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Affiliation(s)
- Worapat Attawettayanon
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH; Division of Urology, Department of Surgery, Faculty of Medicine, Songklanagarind Hospital, Prince of Songkla University, Songkhla, Thailand
| | - Yosuke Yasuda
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH; Tokyo Medical and Dental University, Graduate School, Tokyo, Japan
| | - Jj H Zhang
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH; Department of Urology, University of California Los Angeles (UCLA), Los Angeles, CA
| | - Nityam Rathi
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH
| | - Carlos Munoz-Lopez
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH
| | - Akira Kazama
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH; Department of Urology, Molecular Oncology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Kieran Lewis
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH
| | - Ben Ponvilawan
- Department of Translational Hematology and Oncology Research, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH
| | - Snehi Shah
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH
| | - Andrew Wood
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH
| | - Jianbo Li
- Department of Quantitative Health Sciences, Lerner Research Institute, Cleveland, OH
| | | | - Rebecca A Campbell
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH
| | - Joseph Zabell
- Department of Urology, University of Minnesota, Minneapolis, MN
| | - Jihad Kaouk
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH
| | | | - Mohamad Eltemamy
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH
| | | | - Robert Abouassaly
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH
| | - Christopher Weight
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH
| | - Steven C Campbell
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH.
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Munoz-Lopez C, Attawettayanon W, Campbell SC. Re: Off-clamp Versus On-clamp Robot-assisted Partial Nephrectomy: A Propensity-matched Analysis. Eur Urol 2023; 84:513-514. [PMID: 37422407 DOI: 10.1016/j.eururo.2023.06.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Accepted: 06/23/2023] [Indexed: 07/10/2023]
Affiliation(s)
- Carlos Munoz-Lopez
- Cleveland Clinic Lerner College of Medicine, Cleveland, OH, USA; Department of Urology, Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Worapat Attawettayanon
- Department of Urology, Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Steven C Campbell
- Section of Urologic Oncology, Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA.
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Veccia A, Serafin E, Tafuri A, Malandra S, Maris B, Tomelleri G, Spezia A, Checcucci E, Piazza P, Rodler S, Baekelandt L, Kowalewski KF, Rivero Belenchon I, Taratkin M, Puliatti S, De Backer P, Gomez Rivas J, Cacciamani GE, Zamboni G, Fiorini P, Antonelli A. Can the Abdominal Aortic Atherosclerotic Plaque Index Predict Functional Outcomes after Robot-Assisted Partial Nephrectomy? Diagnostics (Basel) 2023; 13:3327. [PMID: 37958223 PMCID: PMC10650013 DOI: 10.3390/diagnostics13213327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 10/21/2023] [Accepted: 10/23/2023] [Indexed: 11/15/2023] Open
Abstract
This study aims to evaluate the abdominal aortic atherosclerotic plaque index (API)'s predictive role in patients with pre-operatively or post-operatively developed chronic kidney disease (CKD) treated with robot-assisted partial nephrectomy (RAPN) for renal cell carcinoma (RCC). One hundred and eighty-three patients (134 with no pre- and post-operative CKD (no CKD) and 49 with persistent or post-operative CKD development (post-op CKD)) who underwent RAPN between January 2019 and January 2022 were deemed eligible for the analysis. The API was calculated using dedicated software by assessing the ratio between the CT scan atherosclerotic plaque volume and the abdominal aortic volume. The ROC regression model demonstrated the influence of API on CKD development, with an increasing effect according to its value (coefficient 0.13; 95% CI 0.04-0.23; p = 0.006). The Model 1 multivariable analysis of the predictors of post-op CKD found that the following are independently associated with post-op CKD: Charlson Comorbidity Index (OR 1.31; p = 0.01), last follow-up (FU) Δ%eGFR (OR 0.95; p < 0.01), and API ≥ 10 (OR 25.4; p = 0.01). Model 2 showed API ≥ 10 as the only factor associated with CKD development (OR 25.2; p = 0.04). The median follow-up was 22 months. Our results demonstrate API to be a strong predictor of post-operative CKD, allowing the surgeon to tailor the best treatment for each patient, especially in those who might be at higher risk of CKD.
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Affiliation(s)
- Alessandro Veccia
- Department of Urology, Azienda Ospedaliera Universitaria Integrata Verona, 37126 Verona, Italy (A.A.)
| | - Emanuele Serafin
- Department of Urology, Azienda Ospedaliera Universitaria Integrata Verona, 37126 Verona, Italy (A.A.)
| | - Alessandro Tafuri
- Department of Urology, Azienda Ospedaliera Universitaria Integrata Verona, 37126 Verona, Italy (A.A.)
- Department of Urology, Vito Fazzi Hospital, 73100 Lecce, Italy
| | - Sarah Malandra
- Department of Surgery, Dentistry, Pediatrics and Gynecology, University of Verona, Azienda Ospedaliera Universitaria Integrata (AOUI) Verona, 37126 Verona, Italy (G.Z.)
| | - Bogdan Maris
- Department of Computer Science, University of Verona, 37126 Verona, Italy; (B.M.); (P.F.)
| | - Giulia Tomelleri
- Department of Radiology, Azienda Ospedaliera Universitaria Integrata Verona, 37126 Verona, Italy
| | - Alessandro Spezia
- Department of Radiology, Azienda Ospedaliera Universitaria Integrata Verona, 37126 Verona, Italy
| | - Enrico Checcucci
- Department of Surgery, Candiolo Cancer Institute, FPO-IRCCS, 10060 Turin, Italy
| | - Pietro Piazza
- Division of Urology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, 40138 Bologna, Italy
| | - Severin Rodler
- Department of Urology, LMU University Hospital, LMU Munich, 81377 Munich, Germany
| | - Loic Baekelandt
- Department of Urology, University Hospitals Leuven, 3000 Leuven, Belgium
| | - Karl-Friedrich Kowalewski
- Department of Urology, University Medical Center Mannheim, University of Heidelberg, 69117 Mannheim, Germany
| | - Ines Rivero Belenchon
- Urology and Nephrology Department, Virgen del Rocío University Hospital, Manuel Siurot s/n, 41013 Seville, Spain;
| | - Mark Taratkin
- Institute for Urology and Reproductive Health, Sechenov University, 119992 Moscow, Russia;
| | - Stefano Puliatti
- Department of Urology, University of Modena and Reggio Emilia, 41126 Modena, Italy;
| | | | - Juan Gomez Rivas
- Department of Urology, Hospital Clinico San Carlos, 28040 Madrid, Spain;
| | | | - Giulia Zamboni
- Department of Surgery, Dentistry, Pediatrics and Gynecology, University of Verona, Azienda Ospedaliera Universitaria Integrata (AOUI) Verona, 37126 Verona, Italy (G.Z.)
| | - Paolo Fiorini
- Department of Computer Science, University of Verona, 37126 Verona, Italy; (B.M.); (P.F.)
| | - Alessandro Antonelli
- Department of Urology, Azienda Ospedaliera Universitaria Integrata Verona, 37126 Verona, Italy (A.A.)
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Munoz-Lopez C, Lewis K, Attawettayanon W, Yasuda Y, Accioly JPE, Rathi N, Lone Z, Boumitri M, Campbell RA, Wood A, Kaouk J, Haber GP, Eltemamy M, Krishnamurthi V, Abouassaly R, Haywood S, Weight C, Campbell SC. Parenchymal volume analysis to assess longitudinal functional decline following partial nephrectomy. BJU Int 2023; 132:435-443. [PMID: 37409822 DOI: 10.1111/bju.16110] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/07/2023]
Abstract
OBJECTIVE To identify factors associated with longitudinal ipsilateral functional decline after partial nephrectomy (PN). PATIENTS AND METHODS Of 1140 patients managed with PN (2012-2014), 349 (31%) had imaging/serum creatinine levels pre-PN, 1-12 months post-PN (new baseline), and >3 years later necessary for inclusion. Parenchymal-volume analysis was used to determine split renal function. Patients were grouped as having significant renal comorbidity (CohortSRC : diabetes mellitus with insulin-dependence or end-organ damage, refractory hypertension, or severe pre-existing chronic kidney disease) vs not having significant renal comorbidity (CohortNoSRC ) preoperatively. Multivariable regression was used to identify predictors of annual ipsilateral parenchymal atrophy and functional decline relative to new baseline values post-PN, after the kidney had healed. RESULTS The median follow-up was 6.3 years with 87/226/36 patients having cold/warm/zero ischaemia. The median cold/warm ischaemia times were 32/22 min. Overall, the median tumour size was 3.0 cm. The preoperative glomerular filtration rate (GFR) and new baseline GFR (NBGFR) were 81 and 71 mL/min/1.73 m2 , respectively. After establishment of the NBGFR, the median loss of global and ipsilateral function was 0.7 and 0.4 mL/min/1.73 m2 /year, respectively, consistent with the natural ageing process. Overall, the median ipsilateral parenchymal atrophy was 1.2 cm3 /year and accounted for a median of 53% of the annual functional decline. Significant renal comorbidity, age, and warm ischaemia were independently associated with ipsilateral parenchymal atrophy (all P < 0.01). Significant renal comorbidity and ipsilateral parenchymal atrophy were independently associated with annual ipsilateral functional decline (both P < 0.01). Annual median ipsilateral parenchymal atrophy and functional decline were both significantly increased for CohortSRC compared to CohortNoSRC (2.8 vs 0.9 cm3 , P < 0.01 and 0.90 vs 0.30 mL/min/1.73 m2 /year, P < 0.01, respectively). CONCLUSIONS Longitudinal renal function following PN generally follows the normal ageing process. Significant renal comorbidities, age, warm ischaemia, and ipsilateral parenchymal atrophy were the most important predictors of ipsilateral functional decline following establishment of NBGFR.
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Affiliation(s)
- Carlos Munoz-Lopez
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Kieran Lewis
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Worapat Attawettayanon
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA
- Division of Urology, Department of Surgery, Faculty of Medicine, Songklanagarind Hospital, Prince of Songkla University, Songkhla, Thailand
| | - Yosuke Yasuda
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA
- Tokyo Medical and Dental University, Graduate School, Tokyo, Japan
| | | | - Nityam Rathi
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Zaeem Lone
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Melissa Boumitri
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Rebecca A Campbell
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Andrew Wood
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Jihad Kaouk
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA
| | | | - Mohamad Eltemamy
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA
| | | | - Robert Abouassaly
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Samuel Haywood
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Christopher Weight
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Steven C Campbell
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA
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Campbell SC, Munoz-Lopez C. Zero ischaemia is not zero risk. BJU Int 2023; 132:233-234. [PMID: 37269154 DOI: 10.1111/bju.16090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Affiliation(s)
- Steven C Campbell
- Center for Urologic Oncology, Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA
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