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- Bahi, R., et al.
(författare)
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Ischemia is not an independent predictive factor of chronic renal failure after partial nephrectomy in a solitary kidney in patients without pre-operative renal insufficiency
- 2015
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Ingår i: Progrès en urologie (Paris). - : Elsevier BV. - 1166-7087. ; 25:1, s. 27-33
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Tidskriftsartikel (refereegranskat)abstract
- Objective: To assess the influence of vascular clamping and ischemia time on long-term post-operative renal function following partial nephrectomy (PN) for cancer in a solitary kidney.Patients and methods: This is a retrospective study including 259 patients managed by PN between 1979 and 2010 in 13 centers. Clamping use, technique choice (pedicular or parenchymal clamping), ischemia time, and peri-operative data were collected. Pre-operative and last follow-up glomerular filtration rates were compared. A multivariate analysis using a Cox model was performed to assess the impact of ischemia on post-operative chronic renal failure risk.Results: Mean tumor size was 4.0 ± 2.3 cm and mean pre-operative glomerular filtration rate was 60.8 ± 18.9 mL/min. One hundred and six patients were managed with warm ischemia (40.9%) and 53 patients with cold ischemia (20.5%). Thirty patients (11.6%) have had a chronic kidney disease. In multivariate analysis, neither vascular clamping (P = 0.44) nor warm ischemia time (P = 0.1) were associated with a pejorative evolution of renal function. Pre-operative glomerular filtration rate (P < 0.0001) and blood loss volume (P = 0.02) were significant independent predictive factors of long-term renal failure.Conclusion: Renal function following PN in a solitary kidney seems to depend on non-reversible factors such as pre-operative glomerular filtration rate. Our findings minimize the role of vascular clamping and ischemia time, which were not significantly associated with chronic renal failure risk in our study.
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- Shirani, A, et al.
(författare)
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Multiple sclerosis in older adults: the clinical profile and impact of interferon Beta treatment
- 2015
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Ingår i: BioMed research international. - : Hindawi Limited. - 2314-6141 .- 2314-6133. ; 2015, s. 451912-
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Tidskriftsartikel (refereegranskat)abstract
- Background. We examined (1) patient characteristics and disease-modifying drug (DMD) exposure in late-onset (LOMS, ≥50 years at symptom onset) versus adult-onset (AOMS, 18–<50 years) MS and (2) the association between interferon-beta (IFNβ) and disability progression in older relapsing-onset MS adults (≥50 years).Methods. This retrospective study (1980–2004, British Columbia, Canada) included 358 LOMS and 5627 AOMS patients. IFNβ-treated relapsing-onset MS patients aged ≥50 (regardless of onset age, 90) were compared with 171 contemporary and 106 historical controls. Times to EDSS 6 from onset and from IFNβeligibility were examined using survival analyses.Results. LOMS patients (6%) were more likely to be male, with motor onset and a primary-progressive course, and exhibit faster progression and were less likely to take DMDs. Nonetheless, 57% were relapsing-onset, of which 31% were prescribed DMDs, most commonly IFNβ. Among older relapsing-onset MS adults, no significant association between IFNβexposure and disability progression was found when either the contemporary (hazard ratio [HR]: 0.46; 95% CI: 0.18–1.22) or historical controls (HR: 0.54; 95% CI: 0.20–1.42) were considered.Conclusion. LOMS differed clinically from AOMS. One-third of older relapsing-onset MS patients were prescribed a DMD. IFNβexposure was not significantly associated with reduced disability in older MS patients.
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