RESUMEN
We report the use of an autosomal-dominant polycystic kidney disease (ADPKD) donor kidney in a paediatric recipient. A 14-year-old boy on haemodialysis for 4 years following loss of a first kidney transplant, highly sensitised, and with limited vascular options for ongoing dialysis access, was offered a deceased brain death donor transplant from a mid-30s donor with known ADPKD but normal kidney function and negligible proteinuria. After extensive discussion with the patient and family, discussing all alternative options and review of available literature, the kidney was accepted and implanted. Graft function was immediate. An early post-transplant creatinine rise was attributed to possible antibody-mediated rejection, treated with plasmapheresis and rituximab. Ten months post-transplant, the patient remains dialysis-free with stable function. Extended criteria kidneys are already considered for highly sensitised or long-waiting dialysis patients. Though the literature is limited, kidneys from patients with ADPKD could be considered within extended criteria offers on a case-by-case basis.
Asunto(s)
Trasplante de Riñón , Riñón Poliquístico Autosómico Dominante , Masculino , Humanos , Niño , Adolescente , Diálisis Renal , Riñón , Donantes de Tejidos , Supervivencia de InjertoRESUMEN
The role of ex vivo normothermic perfusion (EVNP) in both organ viability assessment and reconditioning is increasingly being demonstrated. We report the use of this emerging technology to facilitate the transplantation of a pair of donor kidneys with severe acute kidney injury (AKI) secondary to rhabdomyolysis. Donor creatinine was 10.18 mg/dl with protein (30 mg/dl) present in urinalysis. Both kidneys were declined by all other transplantation units and subsequently accepted by our unit. The first kidney was perfused with red cell-based perfusate at 37°C for 75 min, mean renal blood flow was 110 ml/min/100 g and produced 85 ml of urine. Having demonstrated favorable macroscopic appearance and urine output, the kidney was transplanted into a 61-year-old peritoneal dialysis dependent without complication. Given the reassuring information from the first kidney provided by EVNP, the second kidney was not perfused with EVNP and was directly implanted to a 64-year-old patient. The first kidney achieved primary function and the second functioned well after delayed graft function. Recipient eGFR have stabilized at 88.5 and 55.3, respectively (ml/min/1.73 m2 ), at 2 months posttransplant.
Asunto(s)
Trasplante de Riñón , Rabdomiólisis , Biopsia , Funcionamiento Retardado del Injerto/etiología , Supervivencia de Injerto , Humanos , Riñón , Trasplante de Riñón/efectos adversos , Persona de Mediana Edad , Preservación de Órganos , Perfusión , Rabdomiólisis/etiología , Donantes de TejidosRESUMEN
PURPOSE: The traditional Brooke ileostomy removed the last 8-15 cm of the ileum due to concern of occurrence of terminal ileal Crohn's disease, vide infra the ileocolic sphincter was removed. Retaining all the terminal ileum has the potential of retaining the ileocolic sphincter. Our aim was to investigate whether a high-pressure zone existed within the last few centimetres of the ileum and its response to pharmacological stimuli. METHODS: A balloon manometry catheter was introduced into the stoma of 16 patients who had formation of an end ileostomy (ileocolic sphincter retained, ICS). Recordings were made at 1 cm intervals from the meatus in order to identify the maximum intra-luminal resting and intra-abdominal pressure. At the point of maximum resting pressure, the response to phenylephrine (10% gel) and glyceryl trinitrate (GTN) (0.2% paste) was recorded. Results were recorded using an Ohmeda Oestiva 5 manometry system (in millimeter of mercury) and data were analysed using ANOVA. Results were compared with 13 historical controls (ileocolic sphincter removed). RESULTS: There was no significant difference in resting intra-abdominal pressure between the two groups (historical controls 8.5 ± 3.0 mmHg; ICS 9.0 ± 3.2 mmHg), p = NS. The maximum resting intra-luminal pressure in ICS patients exceeded historical controls 16 ± 2.9 vs 10.0 ± 2.5 mmHg, p < 0.001. In ICS patients, phenylephrine increased the resting pressure to 26.0 ± 3.5 mmHg, p < 0.001. In historical controls, the pressure remained unchanged, 12 ± 4.7 mmHg, p = NS. Subsequent addition of GTN to both groups lowered maximum intra-luminal pressure to pre-study values, 10 ± 4.2 mmHg (ICS) and 7 ± 3.5 mmHg (controls), p = NS. CONCLUSION: Retention of the ileocolic sphincter in a modified Brooke ileostomy preserves a physiological high-pressure zone, the properties of which can be modified by pharmacological agents.
Asunto(s)
Ileostomía , Íleon/fisiopatología , Íleon/cirugía , Nitroglicerina/farmacología , Fenilefrina/farmacología , Adulto , Anciano , Estudios de Casos y Controles , Demografía , Femenino , Humanos , Íleon/efectos de los fármacos , Masculino , Persona de Mediana Edad , Adulto JovenRESUMEN
In January 2007, our centre changed from a cyclosporin (CyA)/azathioprine (Aza)/ prednisolone (Pred) primary immunosuppression regimen (with basiliximab induction and mycophenolate mofetil [MMF] for those at immunologically high risk) to a tacrolimus (Tac) (low dose)/MMF/Pred regimen with basiliximab induction, following presentation of Symphony trial results. This analysis assesses the impact of this change on 5-year outcomes. Three hundred consecutive renal-only transplants were identified: 140 from the 2005-06 era and 160 from the 2007-08 era. The proportions of living donor (37.5 vs. 22.9%; p = 0.04) and donors after circulatory death (11.9 vs. 5.0%; p = 0.03) were higher in the 2007-08 cohort. Five-year actuarial patient survival was higher in the 2007-08 cohort (96.8 vs. 87.1%; p = 0.003), with a trend toward higher 5-year transplant survival (84.7 vs. 76.3%; p = 0.08). Estimated glomerular filtration rate (eGFR) was higher than in the 2005-06 era at 1 (53.5 vs. 44.5 ml/min/1.73m2; p = 0.0006) and 3 years (50.9 vs. 43.4 ml/min/1.73m2; p = 0.02), with a trend toward higher eGFR at 5 years (41.8 vs. 49.6 ml/min/1.73m2; p = 0.09). Differences were consistent when living donor and deceased donor transplants were analysed separately. In a "real world" population, a change from a CyA-based to a Tac (low-dose)/MMF/Pred primary immunosuppression regimen has been associated with better 5-year outcomes.