Oxalosis y livedo reticularis / Oxalosis and Livedo Reticularis

La oxalosis es una enfermedad derivada del depósito de oxalato cálcico fuera del aparato urinario. Los lugares de depósito extrarrenales más frecuentes incluyen el hueso, el miocardio, la retina, los vasos sanguíneos y la piel, lo que da lugar a las manifestaciones clínicas de esta enfermedad. En la piel las alteraciones pueden deberse a la afectación de los vasos sanguíneos, lo que da lugar a la aparición de cuadros de livedo reticularis, acrocianosis, úlceras y gangrena. Presentamos el caso de una mujer de 60 años con historia de litiasis renal recidivante, que le llevó a una insuficiencia renal terminal que requirió hemodiálisis y posteriormente diálisis peritoneal. La paciente desarrolló de forma súbita la aparición de elementos cutáneos de color rojo-violáceo, dolorosos a la palpación compatibles con livedo reticularis que evolucionaron a úlceras. La biopsia cutánea reveló una vasculopatía por oxalato.En este artículo se describen las características de este raro proceso, su diagnóstico diferencial con la calcifilaxis y las alternativas terapéuticas (AU)

Oxalosis is a disease caused by the deposition of calcium oxalate in extrarenal tissues, most commonly bone, myocardium, retina, blood vessels, and skin, causing the clinical manifestations of the disease. Involvement of the blood vessels of the skin can give rise to livedo reticularis, acrocyanosis, ulcers, and gangrene. We present the case of a 60-year-old woman with a history of recurrent renal lithiasis that had led to terminal renal failure requiring hemodialysis and, subsequently, peritoneal dialysis. The patient developed tender red-violaceous skin discoloration of sudden onset, consistent with livedo reticularis; the lesions progressed to form ulcers. Skin biopsy revealed oxalate vasculopathy. In this article we describe the characteristics of this rare disorder, its differentiation from calciphylaxis, and the therapeutic options (AU)

Utilidad de la SPECT-TAC en la identificación de fístulas en una peritoneogammagrafía / Utility of SPECT-CT in the identification of fistulas in a peritoneal scintigraphy

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Oxalosis and livedo reticularis.

Oxalosis is a disease caused by the deposition of calcium oxalate in extrarenal tissues, most commonly bone, myocardium, retina, blood vessels, and skin, causing the clinical manifestations of the disease. Involvement of the blood vessels of the skin can give rise to livedo reticularis, acrocyanosis, ulcers, and gangrene. We present the case of a 60-year-old woman with a history of recurrent renal lithiasis that had led to terminal renal failure requiring hemodialysis and, subsequently, peritoneal dialysis. The patient developed tender red-violaceous skin discoloration of sudden onset, consistent with livedo reticularis; the lesions progressed to form ulcers. Skin biopsy revealed oxalate vasculopathy. In this article we describe the characteristics of this rare disorder, its differentiation from calciphylaxis, and the therapeutic options.

Diez años de diálisis peritoneal en Andalucía (1999-2008): datos epidemiológicos, tipos de tratamiento, peritonitis, comorbilidady supervivencia de pacientes y técnica / Peritoneal dialysis outcome. The Andalusian Registry Peritoneal Dialysis: 1999-2008

En este estudio presentamos todos los resultados derivados del procesamiento de los datos del registro de los pacientes de diálisis peritoneal que iniciaron tratamiento sustitutivo en Andalucía entre enero de 1999 y diciembre de 2008. Toda la información procede del Sistema de Información de la Coordinación Autonómica de Trasplante de Andalucía (SICATA). Se presentan datos demográficos, distribución por provincias, las causas de insuficiencia renal y motivo de elección de la diálisis peritoneal como técnica de tratamiento renal sustitutivo, la situación con respecto al trasplante, datos en relación con el catéter y técnica de diálisis peritoneal, las salidas del programa y sus causas, las peritonitis del año 2008, su evolución y resultado de los cultivos. Presentamos también en el informe datos evolutivos 1999-2008 en cuanto a inclusiones, diabetes, tratamiento con diálisis peritoneal automática e incidencia de peritonitis. Analizamos, por otra parte, la supervivencia global de los pacientes y de la técnica diálisis peritoneal, la comorbilidad al inicio del tratamiento y su impacto en la supervivencia (AU)

In this study we show the results derived from the processing of the data of the Registry of the patients on peritoneal dialysis that initiated renal replacement therapy in Andalucía between January of 1999 and December of2008. All the information comes from the base of the Registry of Renal Patients of the Andalucia´s Health Service. The results show demographic data, distribution by provinces, etiology of the end stage renal disease, reason for election of the peritoneal dialysis, inclusion or not in list of renal transplant, catheter data, with draws and their causes, and peritonitis data of 2008. We also analyze in the report, from 1999-2008: anual incidence, diabetes, automatic peritoneal dialysis and peritonitis incidence. Finally we have studied patient and technique survival and factors affecting mortality on peritoneal dialysis, the initial comorbid conditions and its impact in the patient´s survival (AU)

[Reversible posterior leukoencephalopathy, severe hypertension, and cocaine abuse]. / Leucoencefalopatía posterior reversible, hipertensión severa y abuso de cocaína.

Reversible posterior leukoencephalopathy syndrome is a brain disorder characterized by headache, nausea, vomiting, visual disturbance, depressed level of consciousness, convulsions and occasionally focal neurologic deficits. It is commonly associated with malignant hypertension, toxemia of pregnancy or the use of immunosuppressive agents. Early diagnosis and specific treatment is essential. We report a case of reversible posterior leukoencephalopathy in the context of a hypertensive crisis in an habitual cocaine sniffer. Reversible posterior leukoencephalopathy must be suspected in every patient with hypertensive crisis and compatible clinic manifestation. Neuroimaging studies show characteristic features which confirm the diagnosis.

Leucoencefalopatía posterior reversible, hipertensión severa y abuso de cocaína / Reversible posterior leukoencephalopathy, severe hypertension and cocaine abuse

La leucoencefalopatía posterior reversible es una alteración del sistema nervioso central que cursa clínicamente con cefalea, náuseas y vómitos, alteraciones visuales, disminución del nivel de conciencia, crisis convulsivas y ocasionalmente signos de focalidad neurológica. Suele asociarse con hipertensión arterial maligna, toxemia del embarazo o el uso de inmunosupresores. Son fundamentales un diagnóstico precoz y tratamiento adecuado. Se presenta un caso de leucoencefalopatía posterior reversible en el contexto de una crisis hipertensiva en un paciente consumidor habitual de cocaína por vía intranasal. La leucoencefalopatía posterior reversible cursa con manifestaciones clínicas sugestivas y debe ser sospechada en todo paciente con crisis hipertensiva y clínica compatible. Los estudios de neuroimagen caracterizan y apoyan el diagnóstico. (AU)

Acidosis correction with a new 25 mmol/l bicarbonate/15 mmol/l lactate peritoneal dialysis solution.

OBJECTIVE: The aim of this study was to evaluate the effects of a combined 25 mmol/L bicarbonate/15 mmol/L lactate-based solution (Bic/Lac), compared to a 35 mmol/L lactate solution (Lac)--the most commonly used solution for patients in southern Europe--on the venous plasma bicarbonate level in patients treated with continuous ambulatory peritoneal dialysis (CAPD). DESIGN: This was a randomized, parallel, controlled, open-label study, with patients studied for a period of 3 months preceded by a 1-month baseline and followed by a 1-month follow-up. Patients used the 35 mmol/L lactate solution during baseline and follow-up periods. SETTING: Four Spanish nephrology centers. PATIENTS: Thirty-one (20 Bic/Lac, 11 Lac) well-dialyzed (creatinine clearance > 55 L/week/1.73 m2 body surface area) CAPD patients. INTERVENTIONS: Blood samples were taken for biochemistry tests at all visits. A physical examination was completed at baseline and month 3, and a medical update was completed after 1, 2, and 3 months, and at the follow-up visit. Adverse-event monitoring and notation of prescription changes were carried out continuously. MAIN OUTCOME MEASURE: Effect on venous plasma bicarbonate level. RESULTS: Venous plasma bicarbonate rose by 3.1 mmol/L (confidence intervals 1.6-4.8),from a baseline level of 23.0 mmol/L during the treatment period in those patients treated with Bic/Lac (p < 0.05 vs Lac). The number of acidotic patients (venous plasma bicarbonate < 24 mmol/L) was statistically significantly reduced at every treatment period visit in the Bic/Lac group (p < 0.05). There were no adverse findings with respect to vital signs, physical examination, or clinical symptoms, apart from one death in the control group. CONCLUSIONS: The new Bic/Lac solution allowed better correction of acid-base status than the lactate solution.