Risks and benefits of partial nephrectomy performed with limited or with zero ischaemia time
© 2023 BJU International..
OBJECTIVE: To test the hypothesis that longer warm ischaemia time (WIT) might have a marginal impact on renal functional outcomes and might, in fact, reduce haemorrhagic risk intra-operatively.
PATIENTS AND METHODS: Data from 1140 patients treated with elective partial nephrectomy (PN) for a cT1-2 cN0 cM0 renal mass were prospectively collected. WIT was defined as the duration of clamping of the main renal artery with no refrigeration and was tested as a continuous variable. The primary outcome of the study was evaluation of the effect of WIT on renal function (estimated glomerular filtration rate [eGFR]) postoperatively, at 6 months and in the long term (measured between 1 and 5 years after surgery). The secondary outcome of the study was haemorrhagic risk, defined as estimated blood loss (EBL) or peri-operative transfusions. Multivariable linear, logistic and Cox regression analyses, accounting for age, Charlson comorbidity index, clinical size, preoperative eGFR and year of surgery, were used and the potential nonlinear relationship between WIT and the study outcomes was modelled using restricted cubic splines.
RESULTS: A total of 863 patients (76%) underwent PN with WIT and 277 (24%) without. The baseline median eGFR was 87.3 (68.8-99.2) mL/min/1.73m2 for the on-clamp population and 80.6 (63.2-95.2) mL/min/1.73m2 for the off-clamp population. The median duration of WIT was 17 (13-21) min. At multivariable analyses predicting renal function, longer WIT was associated with decreased postoperative eGFR (estimate: -0.21, 95% confidence interval [CI] -0.31; -0.11 [P < 0.001]). Conversely, no association between WIT and eGFR was recorded at 6-month or long-term follow-up (all P > 0.8). At multivariable analyses predicting haemorrhagic risk, clampless resection with no ischaemia time and PN with short WIT was associated with an increased EBL (estimate: -21.56, 95% CI -28.33; -14.79 [P < 0.001]) and peri-operative transfusion rate (estimate: -0.009, 95% CI -0.01; -0.003 [P = 0.002]). No association between WIT and positive surgical margin status was recorded (all P = 0.1).
CONCLUSION: Patients and clinicians should be aware that performing PN with very limited or even with zero WIT might increase bleeding and the need for peri-operative transfusion while not improving long-term renal function outcomes.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:132 |
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| Enthalten in: |
BJU international - 132(2023), 3 vom: 14. Sept., Seite 283-290 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Cignoli, Daniele [VerfasserIn] |
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| Links: |
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| Themen: |
Clampless |
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| Anmerkungen: |
Date Completed 30.08.2023 Date Revised 30.08.2023 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1111/bju.16009 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM354383248 |
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| 100 | 1 | |a Cignoli, Daniele |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Risks and benefits of partial nephrectomy performed with limited or with zero ischaemia time |
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| 500 | |a Date Completed 30.08.2023 | ||
| 500 | |a Date Revised 30.08.2023 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a © 2023 BJU International. | ||
| 520 | |a OBJECTIVE: To test the hypothesis that longer warm ischaemia time (WIT) might have a marginal impact on renal functional outcomes and might, in fact, reduce haemorrhagic risk intra-operatively | ||
| 520 | |a PATIENTS AND METHODS: Data from 1140 patients treated with elective partial nephrectomy (PN) for a cT1-2 cN0 cM0 renal mass were prospectively collected. WIT was defined as the duration of clamping of the main renal artery with no refrigeration and was tested as a continuous variable. The primary outcome of the study was evaluation of the effect of WIT on renal function (estimated glomerular filtration rate [eGFR]) postoperatively, at 6 months and in the long term (measured between 1 and 5 years after surgery). The secondary outcome of the study was haemorrhagic risk, defined as estimated blood loss (EBL) or peri-operative transfusions. Multivariable linear, logistic and Cox regression analyses, accounting for age, Charlson comorbidity index, clinical size, preoperative eGFR and year of surgery, were used and the potential nonlinear relationship between WIT and the study outcomes was modelled using restricted cubic splines | ||
| 520 | |a RESULTS: A total of 863 patients (76%) underwent PN with WIT and 277 (24%) without. The baseline median eGFR was 87.3 (68.8-99.2) mL/min/1.73m2 for the on-clamp population and 80.6 (63.2-95.2) mL/min/1.73m2 for the off-clamp population. The median duration of WIT was 17 (13-21) min. At multivariable analyses predicting renal function, longer WIT was associated with decreased postoperative eGFR (estimate: -0.21, 95% confidence interval [CI] -0.31; -0.11 [P < 0.001]). Conversely, no association between WIT and eGFR was recorded at 6-month or long-term follow-up (all P > 0.8). At multivariable analyses predicting haemorrhagic risk, clampless resection with no ischaemia time and PN with short WIT was associated with an increased EBL (estimate: -21.56, 95% CI -28.33; -14.79 [P < 0.001]) and peri-operative transfusion rate (estimate: -0.009, 95% CI -0.01; -0.003 [P = 0.002]). No association between WIT and positive surgical margin status was recorded (all P = 0.1) | ||
| 520 | |a CONCLUSION: Patients and clinicians should be aware that performing PN with very limited or even with zero WIT might increase bleeding and the need for peri-operative transfusion while not improving long-term renal function outcomes | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a clampless | |
| 650 | 4 | |a kidney cancer | |
| 650 | 4 | |a renal cell carcinoma | |
| 650 | 4 | |a renal function | |
| 650 | 4 | |a renal surgery | |
| 700 | 1 | |a Basile, Giuseppe |e verfasserin |4 aut | |
| 700 | 1 | |a Fallara, Giuseppe |e verfasserin |4 aut | |
| 700 | 1 | |a Rosiello, Giuseppe |e verfasserin |4 aut | |
| 700 | 1 | |a Belladelli, Federico |e verfasserin |4 aut | |
| 700 | 1 | |a Cei, Francesco |e verfasserin |4 aut | |
| 700 | 1 | |a Musso, Giacomo |e verfasserin |4 aut | |
| 700 | 1 | |a Re, Chiara |e verfasserin |4 aut | |
| 700 | 1 | |a Bertini, Roberto |e verfasserin |4 aut | |
| 700 | 1 | |a Karakiewicz, Pierre |e verfasserin |4 aut | |
| 700 | 1 | |a Mottrie, Alexandre |e verfasserin |4 aut | |
| 700 | 1 | |a Dehò, Federico |e verfasserin |4 aut | |
| 700 | 1 | |a Gallina, Andrea |e verfasserin |4 aut | |
| 700 | 1 | |a Montorsi, Francesco |e verfasserin |4 aut | |
| 700 | 1 | |a Salonia, Andrea |e verfasserin |4 aut | |
| 700 | 1 | |a Capitanio, Umberto |e verfasserin |4 aut | |
| 700 | 1 | |a Larcher, Alessandro |e verfasserin |4 aut | |
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