Causes of unplanned hemodialysis initiation.

Half of patients starting chronic hemodialysis used a transient vascular catheter as a vascular access (unplanned initiation). An objective of the Quality Management Group of the Spanish Society of Nephrology is to achieve that 80% of the patients starting hemodialysis do it with an arteriovenous fistula. We want to review the causes of non-planned hemodialysis nowadays. In 2010, 43 patients had started chronic hemodialysis in the Hospital Ramón y Cajal in Madrid (Spain). Mean age was 61 years, 79% were men, the most frequent cause of chronic renal disease was the diabetes (23%) and Charlson Comorbidity Index was 6.3 ± 2.6. The unplanned hemodialysis occurred in 20 patients (47%), without any differences with the 23 patients who began planned hemodialysis, in none of the clinical or demographic parameters analyzed. The main cause of unplanned hemodialysis was the acute exacerbation of chronic kidney disease stage 3 or 4, previously stable, secondary to an unforeseeable intercurrent process (8 patients, 40% of the cases). One patient began after a non-recovery acute renal failure and in other 6 patients, the reason of unplanned hemodialysis initiation was not attributable to the operation Health System (in 3 cases unknown kidney chronic disease and in the other 3 cases it was patient´s responsibility). Only in 5 cases (25%), the cause could be corrigible. Most causes of unplanned hemodialysis does not come from the healthcare organization and therefore not easy to resolve it. Consequently, the objective of the Quality Group will be difficult to be achieved.

Causas de inicio no programado del tratamiento renal sustitutivo con hemodiálisis / Causes of unscheduled haemodialysis initiation

La mitad de los enfermos que comienzan tratamiento con hemodiálisis periódica lo hacen con un catéter venoso como acceso vascular (inicio no programado). Un objetivo del Grupo de Gestión de Calidad de la Sociedad Española de Nefrología es conseguir que el 80% de los enfermos comiencen la hemodiálisis a través de una fístula arteriovenosa. Hemos querido revisar las causas que condicionan en la actualidad el inicio no programado, para analizar cuáles pueden ser corregibles. En el año 2010, 43 enfermos comenzaron tratamiento con hemodiálisis periódica en el Hospital Ramón y Cajal de Madrid. La edad media fue de 61 años, el 79% eran hombres, la etiología más frecuente fue la diabetes mellitus (23%) y el índice de Charlson era de 6,3 ± 2,6. El inicio no programado de la hemodiálisis ocurrió en 20 enfermos (47%), sin objetivarse diferencias con los 23 enfermos que comenzaron (..) (AU)

Half of patients starting chronic hemodialysis used a transient vascular catheter as a vascular access (unplanned initiation). An objective of the Quality Management Group of the Spanish Society of Nephrology is to achieve that 80% of the patients starting hemodialysis do it with an arteriovenous fistula. We want to review the causes of non-planned hemodialysis nowadays. In 2010, 43 patients had started chronic hemodialysis in the Hospital Ramón y Cajal in Madrid (Spain). Mean age was 61 years, 79% were men, the most frequent cause of chronic renal disease was the diabetes (23%) and Charlson Comorbidity Index was 6.3 ± 2.6. The unplanned hemodialysis (..) (AU)

Inicio de diálisis tras trasplante renal. ¿Se empieza en peor situación que la de los enfermos renales de novo? / Dialysis after kidney transplant failure: do patients start in a worse condition than the general population with chronic kidney disease?

Introducción: Los pacientes trasplantados renales con disfunción crónica del injerto que precisan reinicio de diálisis constituyen un grupo cada día más prevalente, con características especiales que los diferencia de la población general con enfermedad renal crónica (ERC). El objetivo del presente estudio fue analizar y comparar la situación clínica al inicio de diálisis y su evolución en el primer año endos grupos de enfermos, trasplantados y no trasplantados, de acuerdo con los criterios fijados en las guías K/DOQI. Asimismo, se estudia si la modalidad de terapia renal sustitutiva (TRS) escogida a su retorno a diálisis pudiera condicionar una mejoría clínica de los pacientes trasplantados. Material y métodos: Estudio retrospectivo y observacional en 106 enfermos con ERC estadio 5 seguidos en el Hospital Ramón y Cajal. Dichos enfermos fueron divididos en dos grupos. El primero estaba formado por 50 enfermos con ERC de riñones nativos que comenzaron tratamiento con diálisis entre los años 2000 y 2009. El segundo grupo estaba constituido por 56 enfermos trasplantados con disfunción del injerto que precisaron retorno a diálisis entre los años 1997 y 2009. Se recogieron parámetros de anemia, función renal, metabolismo calcio-fósforo, factores de riesgo cardiovascular y estado nutricional en el momento de comenzar tratamiento con diálisis y un año después. Resultados: Al inicio de diálisis ambos grupos presentan valores similares en los parámetros analizados con excepción (..) (AU)

Background: Patients with renal graft dysfunction constitute an increasingly prevalent group of end-stage kidney disease (ESKD) patients that require dialysis therapy. These patients have special characteristics that set them apart from the ESKD general population. The aim of this study was to analyse the clinical condition and evolution of patients entering dialysis with a failed kidney graft at the time of restarting dialysis and over a year of therapy according to the K/DOQI guidelines, and to compare them with incidental patients with end-stage kidney disease. We also investigated whether the modality of kidney replacement therapy may determine the clinical improvement of transplant patients. Material and Method: This is a retrospective observational study of 106 patients with ESKD followed up in the Ramon y Cajal Hospital. They were classified in two groups. Group one was made up of 50 failed native kidney patients who started dialysis between 2000and 2009. Group two was comprised of 56 transplant patients with graft dysfunction who returned to dialysis between 1997 and 2009. We studied parameters of kidney (..) (AU)

Ecografía Doppler del riñón de Page / No disponible

No disponible

Dialysis after kidney transplant failure: do patients start in a worse condition than the general population with chronic kidney disease?

BACKGROUND: Patients with renal graft dysfunction constitute an increasingly prevalent group of end-stage kidney disease (ESKD) patients that require dialysis therapy. These patients have special characteristics that set them apart from the ESKD general population. The aim of this study was to analyse the clinical condition and evolution of patients entering dialysis with a failed kidney graft at the time of restarting dialysis and over a year of therapy according to the K/DOQI guidelines, and to compare them with incidental patients with end-stage kidney disease. We also investigated whether the modality of kidney replacement therapy may determine the clinical improvement of transplant patients. MATERIAL AND METHOD: This is a retrospective observational study of 106 patients with ESKD followed up in the Ramon y Cajal Hospital. They were classified in two groups. Group one was made up of 50 failed native kidney patients who started dialysis between 2000 and 2009. Group two was comprised of 56 transplant patients with graft dysfunction who returned to dialysis between 1997 and 2009. We studied parameters of kidney function, anaemia, calcium-phosphorus metabolism, cardiovascular risk factors and nutritional status at the time both groups started on dialysis and one year later. RESULTS: Both groups had a similar clinical status at the time they started on dialysis in most of the parameters analysed with the exception of anaemia. This was more severe in transplant patients, despite the fact that transplant patients received a higher dose of erythropoietin than non-transplant patients. One year later the main difference between both groups was the residual kidney function rate, higher in non-transplant patients. There were no significant differences in the parameters analysed in patients with a failed graft according to the modality of kidney replacement therapy. CONCLUSION: Failed transplant patients start dialysis with more severe anaemia than patients entering dialysis for the first time. Twelve months later both groups present a similar clinical condition with the exception of residual kidney function, higher in failed native kidney patients. The method of dialysis treatment after kidney transplant failure did not have a bearing on the clinical improvement of our patients.

Biopsia renal ecodirigida / No disponible

No disponible

Evolución de los pacientes infectados por el VIH en diálisis peritoneal: experiencia de un centro y revisión de la literatura / No disponible

La supervivencia de los pacientes VIH ha mejorado en los últimos años. Secundariamente la necesidad de tratamiento renal sustitutivo en estos pacientes también ha aumentado. Su pronóstico en diálisis así como las complicaciones asociadas han mejorado desde los primeros casos descritos. Mostramos los pacientes VIH incluidos en nuestra unidad de diálisis peritoneal desde noviembre-95 hasta noviembre-07. Fueron 8 pacientes, con una edad media de40,7 ± 5,3, con un tiempo de seguimiento de 41,2 ± 32,1meses (rango 12-103). Las etiologías de la IRC fueron diabetes mellitus tipo 1 (2), glomérulo-esclerosis focal y segmentaria(2), nefropatía IgA (1) y no filiada (3). El 62,5% de los pacientes eran hipertensos. La supervivencia al año, dos y tres respectivamente fue de 100, 62,5 y 50%. La mortalidad total fue del 62,5% al finalizar el estudio. La causa principal de deceso fueron los eventos cardiovasculares (2pacientes, 25%). La tasa de peritonitis y el número de admisiones fue de 0,36 paciente/año y de 0,69 ingresos/año respectivamente. El Estafilococo epidermidis fue la principal causa de peritonitis infecciosa y la infección respiratoria el motivo más frecuente de hospitalización. Todos los pacientes recibían tratamiento antirretroviral (TARV). La lamivudina, la estavudina y el nelfinavir fueron los más habituales en el tratamiento. Durante el primer año en diálisis peritoneal se pudo evidenciar que la carga viral y el porcentaje de CD4 no se modificaba. Al mismo tiempos e constató un aumento del peso en el primer año (60,6kg vs 64,9 kg, p = 0,016). Nuestros resultados sugieren que la DP puede ser una técnica de elección en estos pacientes. La supervivencia ha aumentado y las complicaciones asociadas a la técnica de DP también son menores. La importancia de otros factores de riesgo, como los cardiovasculares no está definida. Por el momento la individualización de cada paciente y un trabajo multidisciplinario son obligados (AU)

Overall survival of HIV-infected has increased over the last ten years. In parallel a higher need for renal replacement therapy(RRT) in this population has been more observed. RRT associated complications and outcomes greatly varied since the introduction of highly active antiretroviral therapy (HAART) and scarce data is available regarding the outcome of peritoneal dialysis (PD) in HIV-infected patients under HAART. We described8 HIV-infected patients who were admitted at the Peritoneal Dialysis Unit at our institution from november-95 to november-07. Mean age was 40.7 ± 5.3. Causes of end-stagerenal disease were diabetes mellitus type 1 (2), focal and segmental glomerular sclerosis (2), IgA nephropathy (1) and unknown origin (3). High blood pressure was detected in 62,5 %of the patients. Mean follow-up was 41.2 ± 32.1 months(range 12-103). One, two and three year survival was 100,62.5 and 50% respectively. Overall mortality was 62.5% and cardio-vascular events were the main cause of death (2 patients,25%). Infective peritonitis rate was 0.36 IP/year, and Staphylococcus epidermidis was the most common pathogen identified. Hospital admission rate was 0.69 admission/year and the main cause of admission was respiratory tract infecction. All patients received HAART. Lamivudine, stavudine and nelfinavir were the most frequent treatment prescribed. During the first year in PD undetectable viral load and CD4% were not modified. A significant weight gain was observed during the first year of the study (60.6 kg vs 64.9 kg, p = 0.016). Our results suggest that PD is a suitable choice for RRT in HIV-infected. Compared to previous studies, an increase in overall survival and a decrease in PD-associated complications were seen. The significance of cardio-vascular risk factors in the outcome of PD in HIV-infected patients is not completely determined. A multidisciplinary aproach and a management of patients in individual basis remains mandator (AU)

[Outcome of HIV-infected patients of peritoneal dialysis: experience in a center and literature review]. / Evolución de los pacientes infectados por el VIH en diálisis peritoneal: experiencia de un centro y revisión de la literatura.

Overall survival of HIV-infected has increased over the last ten years. In parallel a higher need for renal replacement therapy (RRT) in this population has been more observed. RRT associated complications and outcomes greatly varied since the introduction of highly active antiretroviral therapy (HAART) and scarce data is available regarding the outcome of peritoneal dialysis (PD) in HIV-infected patients under HAART. We described 8 HIV-infected patients who were admitted at the Peritoneal Dialysis Unit at our institution from November-95 to November-07. Mean age was 40.7 +/- 5.3. Causes of end-stage renal disease were diabetes mellitus type 1 (2), focal and segmental glomerular sclerosis (2), IgA nephropathy (1) and unknown origin (3). High blood pressure was detected in 62,5% of the patients. Mean follow-up was 41.2 +/- 32.1 months (range 12-103). One, two and three year survival was 100, 62.5 and 50% respectively. Overall mortality was 62.5% and cardio-vascular events were the main cause of death (2 patients, 25%). Infective peritonitis rate was 0.36 IP/year, and Staphylococcus epidermidis was the most common pathogen identified. Hospital admission rate was 0.69 admission/year and the main cause of admission was respiratory tract infection. All patients received HAART. Lamivudine, stavudine and nelfinavir were the most frequent treatment prescribed. During the first year in PD undetectable viral load and CD4 % were not modified. A significant weight gain was observed during the first year of the study (60.6 kg. vs 64.9 kg. p > or = 0.016). Our results suggest that PD is a suitable choice for RRT in HIV-infected. Compared to previous studies, an increase in overall survival and a decrease in PD-associated complications were seen. The significance of cardio-vascular risk factors in the outcome of PD in HIV-infected patients is not completely determined. A multidisciplinary approach and a management of patients in individual basis remains mandatory.

[Treatment of arterial stenosis of the kidney graft with transluminal angioplasty]. / Tratamiento de la estenosis arterial del injerto renal mediante angioplastia trasluminal.

OBJECTIVES: The present study was conducted to determine the prevalence of renal artery stenosis (RAS) after kidney transplantation (KT) in hypertensive patients, the efficacy of transluminal angioplasty in the treatment of hypertension secondary to RAS and the morbidity and mortality of angioplasty. METHODS: RAS was suspected in patients with hypertension refractory to medical treatment, with or without functional deterioration or murmur over the graft. Hypertension control, renal function and requirement of drugs were evaluated in 578 transplants performed from 1979 to 1994. RESULTS: The prevalence of hypertension post-transplantation was 43.8% (253/578): 14.2% (42/253) had arteriographically demonstrated RAS, accounting for 7.2% (42/578) of the series. Of these 42 patients, 23 (57%) received antihypertensive drugs: 13 (31%) were treated by angioplasty and 6 (12%) underwent surgical revascularization as the first approach. In the patients submitted to transluminal angioplasty, the stenosis was postanastomotic in 7 and anastomotic in 5: one patient was lost to follow-up. Angioplasty was successful in 8 patients and failed in 4. A graft was lost due to artery thrombosis. Complications were observed in 8 patients. There were no deaths and the incidence of RAS recurrence postangioplasty was 33% (4/12). CONCLUSIONS: RAS is a potentially reversible cause of hypertension post-transplantation. Transluminal angioplasty is the first approach in RAS when medical treatment has failed. The success rate of angioplasty was 66% and the incidence of RAS recurrence was 33%.