Resuming peritoneal dialysis after catheter removal due to complicated peritonitis.

BACKGROUND: Causes of non-resuming peritoneal dialysis (PD) after complicated peritonitis requiring peritoneal catheter (PC) removal remain poorly studied. METHODS: We reviewed all peritonitis episodes in our center between 1997 and 2017. Patients who restarted PD after PC removal (Group 1) were compared to those who did not (Group 2), identifying the causes. RESULTS: Of 284 peritonitis episodes, PC was removed in 48 patients (16.9%). In 18 (37.5%) patients PC was reinserted, and PD successfully resumed in all, with a median duration of PD afterwards of 14.1 months. In other 30 (62.5%) reinsertion of PC was not attempted. Causes of non-reinsertion were: transfer to hemodialysis 76.6% (n = 23), death 16.7% (n = 5) and transplantation 6.7% (n = 2). Hemodialysis switch was due to non-medical reasons in 47.8% (n = 11) including fear of peritonitis, family decision and social dependence. Group 1 was younger (p = 0.041), with lower Charlson index (p = 0.045) and higher men proportion (p = 0.049). Group 1 had a better patient survival than group 2 (survival at 24 months: 67% and 53%, respectively; log-rank test p: 0.01). There were no differences in survival between groups when adjusted for significant basal characteristics. CONCLUSIONS: Resuming PD after severe peritonitis requiring PC removal is feasible but a high proportion of patients do not restart PD for non-medical reasons, usually older patients with higher Charlson index. A properly structured interview would be a useful tool that could improve return to technique in these patients.

URI-CADS: A Fully Automated Computer-Aided Diagnosis System for Ultrasound Renal Imaging.

Ultrasound is a widespread imaging modality, with special application in medical fields such as nephrology. However, automated approaches for ultrasound renal interpretation still pose some challenges: (1) the need for manual supervision by experts at various stages of the system, which prevents its adoption in primary healthcare, and (2) their limited considered taxonomy (e.g., reduced number of pathologies), which makes them unsuitable for training practitioners and providing support to experts. This paper proposes a fully automated computer-aided diagnosis system for ultrasound renal imaging addressing both of these challenges. Our system is based in a multi-task architecture, which is implemented by a three-branched convolutional neural network and is capable of segmenting the kidney and detecting global and local pathologies with no need of human interaction during diagnosis. The integration of different image perspectives at distinct granularities enhanced the proposed diagnosis. We employ a large (1985 images) and demanding ultrasound renal imaging database, publicly released with the system and annotated on the basis of an exhaustive taxonomy of two global and nine local pathologies (including cysts, lithiasis, hydronephrosis, angiomyolipoma), establishing a benchmark for ultrasound renal interpretation. Experiments show that our proposed method outperforms several state-of-the-art methods in both segmentation and diagnosis tasks and leverages the combination of global and local image information to improve the diagnosis. Our results, with a 87.41% of AUC in healthy-pathological diagnosis and 81.90% in multi-pathological diagnosis, support the use of our system as a helpful tool in the healthcare system.

Reversed diastolic intrarenal flow in page kidney following renal biopsy.

Page's kidney is a condition that occurs due to external renal compression, usually caused by a subcapsular haematoma, generating a renal compartmental syndrome with parenchymal damage and renal perfusion alteration. Classically associated with renal trauma, Page's kidney can also arise after invasive renal procedures, such as renal biopsies or percutaneous nephrostomies. Clinically, it can trigger hypertension due to activation of the renin-angiotensin system induced by hypoperfusion secondary to renal parenchymal compression and can also present with varying degrees of renal function impairment. Furthermore, severe acute renal failure may be found particularly in patients with solitary kidneys or renal transplants. We present two cases of Page's kidney after renal biopsy and their PoCUS ultrasound findings. We would like to highlight the reversed diastolic flow on Doppler ultrasound in this entity, a pattern we have found in all two cases.

Routine Kidney Graft Ultrasound After Elective Ureteric Stent Removal: Does it Help?

Transplantation (KTx) is considered to be the best renal replacement therapy, and improving its outcomes remains a primary challenge. KTx ureteral stenting has been used to prevent urological complications, but there is no consensus on the timing of stent removal, and literature regarding routine ultrasonography after ureteric stent removal (RUSUS) to detect complications is lacking. Point-of-care ultrasound has been gaining drive in the medical community in recent years, including nephrologists. We aimed to define the incidence of urological complications diagnosed with RUSUS, if those findings changed patient's management and ultrasound utility. Contrary to previously published data, in our cohort RUSUS allowed a timely diagnosis and early treatment of urological complications, a key factor for successful transplantation. KTx point-of-care ultrasound is a cost-effective and reproducible test that provides relevant information to guide clinical decisions, seeming most efficient when performed approximately 2 weeks post ureteral stent removal. Interventional nephrologists can promptly perform these examinations, reducing waiting times and improving graft and patient's survival.

Assisted peritoneal dialysis (asPD): age is not the key.

BACKGROUND: Peritoneal dialysis (PD) has multiple advantages over other dialysis modalities. As a home-based therapy, it allows patients to keep their autonomy, avoid frequent hospital visits and carry on with their usual lifestyle. However, as a self-care therapy, dependency has been traditionally considered a contraindication. However, assistance to perform PD (asPD) can be provided regardless of the patient's age and the duration of such help. This paper is aimed at reporting on assisted PD use in a Spanish Center, and is the first report on asPD from this country. METHODS: We retrospectively reviewed the electronic medical records of all patients consecutively treated with PD between May 1997 and December 2020 in our PD Unit. Assisted PD was defined as PD treatment requiring the help of another person. On the basis of the duration of dependency, we divided our cohort into: Group 1: Patients totally dependent at the start of PD treatment; Group 2: self-care patients that developed total dependency during follow up; Group 3: patients who needed short-term PD assistance. Group 4, consisting of 175 self-care PD, served as the control group. RESULTS: Seventy-three percent of patients who required asPD did so during their follow up, showing that an important proportion of patients may require some help even if they were autonomous at the beginning of PD. Even for short time periods, asPD should be an option, as up to 44% of autonomous PD patients became dependent for different reasons over time. Spouses were the most frequent caregivers and absence or loss of caregiver was a main reason for switching to hemodialysis. Fourteen percent of the patients received asPD as palliative care, with clinical symptoms and perceived well-being as the main treatment goals, with adequate results. The need for support and the quality of life were periodically discussed by patients, family members and hospital staff. CONCLUSION: Assisted PD is a safe option for dependent patients, young or elderly, and may result less expensive for our healthcare system, even when caregivers receive a financial incentive.

Spontaneous peritoneal dialysis catheter expulsion: A case series.

There are a significant number of mechanical complications related the peritoneal dialysis (PD) catheter and early diagnosis is key. Between them, the spontaneous extrusion of the catheter is quite uncommon but it should be included among the possible complications of the technique, given that it can be related to frequent situations in PD patients like abdominal wall issues, past immunosuppression or PD fluid leakage. In 25 years our Unit had three cases, probably related to peritoneal fluid leakage, exit site infection and past steroid treatment. Careful examination of abdominal wall preimplantation, adequate break-in period to allow maturation and early detection of exit site infection to start treatment in a timely fashion could help to prevent this rare complication. The complete extrusion of the catheter does not preclude from continuing PD treatment.

Incoercible Vomiting in a Polycystic (ADPKD) Patient on Peritoneal Dialysis.

Although gastrointestinal symptoms are not uncommon in PD patients due to several causes, such as infusion volume with early satiety, constipation, or peritonitis, sometimes the differential diagnosis is more challenging for nephrologists. We present the case of a woman with end-stage renal disease due to autosomal dominant polycystic kidney disease on PD who presented with swollen legs and incoercible vomiting. After ruling out constipation and infection, an abdominal CT was done, revealing extrinsic compression of the intrahepatic inferior cava vein (ICV) and massive venous thrombosis from ICV to bilateral iliofemoral deep veins. In addition, CT also showed displacement and extrinsic compression of the stomach, pylorus, and duodenum due to an enlarged liver cyst. Percutaneous drainage and sclerosis of the cyst compressing the stomach was performed, anticoagulation was started, and the patient clinically improved with complete resolution of symptoms.

Safety of renal biopsy bleeding prophylaxis with desmopressin.

BACKGROUND: Percutaneous renal biopsy (PRB) is invasive, and bleeding-related complications are a concern. Desmopressin (DDAVP) is a selective type 2 vasopressin receptor-agonist also used for haemostasis. AIM: To evaluate the side effects of intravenous (IV) weight-adjusted desmopressin preceding PRB. METHODS: This was a retrospective study of renal biopsies performed by nephrologists from 2013 to 2017 in patients who received single-dose DDAVP pre-PRB. RESULTS: Of 482 PRBs, 65 (13.5%) received DDAVP (0.3 µg/kg); 55.4% of the PRBs were native kidneys. Desmopressin indications were altered platelet function analyser (PFA)-100 results (75.3% of the patients), urea >24.9 mmol/L (15.5%), antiplatelet drugs (6.1%) and thrombocytopaenia (3%). Of the 65 patients, 30.7% had minor asymptomatic complications, and 3 patients had major complications. Pre-PRB haemoglobin (Hb) <100 g/L was a risk factor for Hb decrease >10 g/L, and altered collagen-epinephrine (Col-Epi) time was a significant risk factor for overall complications. Mean sodium decrease was 0.6 ± 3 mmol/L. Hyponatraemia without neurological symptoms was diagnosed in two patients; no cardiovascular events occurred. CONCLUSION: Hyponatraemia after single-dose DDAVP is rare. A single IV dose of desmopressin adjusted to the patient's weight is safe as pre-PRB bleeding prophylaxis.

Effectiveness and safety of ferric carboxymaltose therapy in peritoneal dialysis patients: an observational study.

BACKGROUND: The efficacy of intravenous (IV) ferric carboxymaltose (FCM) has been demonstrated in haemodialysis and non-dialysis studies, but evidence is lacking in patients undergoing peritoneal dialysis (PD). METHODS: This multicentre, retrospective study evaluated the effectiveness and safety of FCM in patients on PD over 12 months. We retrospectively reviewed the electronic medical records of PD patients who initiated FCM treatment between 2014 and 2017 across seven Spanish centres. RESULTS: Ninety-one patients were included in the safety population (mean ± SD age 57.7 ± 15.0 years) and 70 in the efficacy population (mean age 50.9 ± 14.5 years). No hypersensitivity reaction, FCM discontinuation or dose adjustment due to a serious adverse event (SAE) was registered in the safety population. The most common non-SAEs reported were headache (four events), mild hypotension (three events) and hypertension (two events), among others. In the efficacy population (n = 70), 68.6% of patients achieved ferritin levels of 200-800 ng/mL, 78.4% achieved transferrin saturation (TSAT) >20%, and 62.8% achieved TSAT >20% and ferritin >200 ng/mL after 12 months of FCM initiation (P < 0.01). Haemoglobin (Hb) levels were maintained at >11 g/dL with a lower dose of darbepoetin throughout the follow-up. The sub-analysis of patients naïve to IV iron and with absolute or relative iron deficiency (n = 51) showed that 76.5% reached ferritin >200 ng/mL, 80.4% TSAT >20% and Hb increased (1.2 g/dL) after 4 months of FCM treatment (P < 0.01). CONCLUSION: In this multicentre, retrospective, real-world study conducted in the PD population, FCM was effective, safe and easy to administer during routine clinical visits.

Relapsing peritonitis and taurolidine peritoneal catheter lock: One center experience.

BACKGROUND: Relapsing peritonitis due to the development of a biofilm in the catheter's lumen remains an important complication of peritoneal dialysis therapy that endangers technique continuity. Taurolidine catheter lock has proven efficient reducing infection rates in permanent hemodialysis catheters based on its biocidal activity and biofilm detachment effect. Efficacy evidence on its use in peritoneal dialysis catheters is lacking. METHODS: We retrospectively analyzed all relapsing peritonitis episodes from June 2018 until October 2019 in our center. Patients were identified and data were collected from our electronic renal registry and patient's records. RESULTS: Six patients were identified during the study period. Most patients (66.6%) were on automated peritoneal dialysis and the median duration of peritoneal dialysis before the episode of taurolidine was started was 43.66 ± 29.64 months. Mean taurolidine doses were 10 (range: 9-11) and 83.3% (five patients, with peritonitis caused by Pseudomonas aeruginosa, Staphylococcus aureus, Escherichia coli, and Corynebacterium propinquum) had a favorable response and microbial eradication without relapses after taurolidine treatment. Only one patient relapsed by the same organism (Corynebacterium amycolatum) due to non-adherence to the antibiotic treatment prescribed. None of the patients experienced any relevant adverse events, with only two out of six presenting mild transient abdominal discomfort. CONCLUSION: We believe that peritoneal catheter taurolidine lock could be considered in cases of relapsing or refractory peritonitis, as it could prevent catheter removal and permanent switch to hemodialysis in selected cases, although literature is scarce and further studies are needed.

Taurolidine Peritoneal Dialysis Catheter Lock to Treat Relapsing Peritoneal Dialysis Peritonitis.

Peritonitis remains a primary challenge for the long-term success of peritoneal dialysis (PD) technique and one of the main reasons for catheter removal. Prevention and treatment of catheter-related infections are major concerns to avoid peritonitis. The use of taurolidine catheter-locking solution to avoid the development of a biofilm in the catheter's lumen has obtained good results in hemodialysis catheters for reducing infection rates, although there is scarce literature available regarding its utility in PD. We describe the case of a woman in her 60s who developed relapsing peritonitis due to Pseudomonas aeruginosa, with no possibility of removing peritoneal dialysis catheter because she was not a suitable candidate for hemodialysis. After the fourth peritonitis episode caused by Pseudomonas species, the use of taurolidine catheter-locking solution was initiated. She received a total of 9 doses, with a favorable microbiological and clinical outcome and no further relapses more than 10 months after taurolidine PD catheter lock treatment was started. We report the successful elimination of an aggressive bacteria after taurolidine PD catheter lock use, with no relevant adverse events.

Utility of Peritoneal Scintigraphy in Peritoneal Dialysis Patients: One Center Experience.

Background: Peritoneal dialysis (PD) is the RRT of choice in 15% of patients with CKD and has multiple advantages over hemodialysis. PD leaks can prompt technique failure and dropout. Use of peritoneal scintigraphy (PS) for diagnosis of PD leaks has declined in favor of more complex and expensive tests. We analyzed the utility of PS for PD leak diagnosis in our center. Methods: We retrospectively analyzed all PS done in our center from January 2000 until December 2018, inclusive, in all patients on PD with a suspected dialysate leak. Results: A total of 39 PS procedures were done in 36 patients on PD in the study period. Of those, 81% were male and 11% had CKD due to polycystic kidney disease. During this period, 23 leaks were diagnosed, showing an incidence of 6% (three episodes per patient per year). In all cases with negative PS, other tests did not confirm a peritoneal dialysate leak. Conclusions: PS is a safe, inexpensive, reproducible, and highly effective diagnostic tool for peritoneal dialysate leaks that allows nephrologists to tailor or stop PD therapy if required. In our opinion, it should be the first-line imaging test to diagnose PD leaks with minimum exposure to radiation, contrast, or other substances that could irritate the peritoneal membrane. We believe PS should be considered as the initial test of choice to diagnose this PD complication as soon as possible, minimizing technique failure and dropout due to leaks.

Port-a-Cath device: A solution for peritoneal dialysis patients with exhausted access.

With aging population and chronic kidney disease burden increasing worldwide, the need for renal replacement therapy is rising and our patients are getting more complex due to comorbidities and long-standing kidney disease. Deteriorated vascular capital is a frequent feature we have to deal with these days, making even obtaining routine blood tests a hard task. We present two case reports of peritoneal dialysis patients without a peripheral vein access were a Port-a-Cath (Port-a-Cath® Deltec® Smiths Medical) was placed to sort out long-term access. Port-a-Cath manipulation was simple, safe and had no complications neither at implantation nor during its use. We believe that Port-a-Cath placement is an option to be considered when coping with end-stage venous access.

[Acute lithium poisoning: epidemiology, clinical characteristics, and treatment]. / Epidemiología, características clínicas y tratamiento de la intoxicación aguda por litio.

Lithium continues to be the treatment of choice for bipolar disorder. Acute lithium poisoning is a potentially serious event. We present a retrospective observational significative study of episodes of acute lithium poisoning during a 52- month period. Poisoning was defined by a blood lithium concentration of 1.5 mEq/L or higher. We analyzed treatment and epidemiologic and clinical characteristics of 70 episodes were identified (incidence density among treated patients, 1.76 per 100 patient-years). The most frequent cause of lithium poisoning was a concurrent medical condition (46%). Most poisonings were mild (74.2%), but neurologic involvement was identified in 40.3%. Electrocardiographic abnormalities were found in 8 cases. Acute renal failure, found in 23 patients (37.1%), was mild in most cases, although 11 patients required hemodialysis. We concluded that acute lithium poisoning is an uncommon complication, but risk needs to be lowered. Patients should be warned to avoid dosage errors and to take special care during concurrent illnesses and while taking other medications.

El litio sigue siendo el tratamiento de elección en el trastorno bipolar. La intoxicación aguda por litio (IAL) es un cuadro potencialmente grave. Se presenta un estudio observacional, retrospectivo de las IAL observadas durante un periodo de 52 meses. Se definió como IAL cuando se registró una concentración de litio en sangre 1,5 mEq/L. Se analizaron sus características clínicas, epidemiológicas y su tratamiento de 70 episodios de IAL (densidad de incidencia: 1,76 IAL por cada 100 pacientes tratados-año). La causa más frecuente de IAL fue un proceso patológico intercurrente (46%). La mayoría fueron de carácter leve (74,2 %), con sintomatología neurológica en el 40,3%. En 8 IAL hubo alteraciones electrocardiográficas, 23 IAL (37,1%) se asociaron con fracaso renal agudo, la mayoría de carácter leve y 11 precisaron hemodiálisis. Se concluye que la IAL es una complicación infrecuente, pero es necesario disminuir su riesgo advirtiendo al paciente ante la existencia de procesos intercurrentes, errores en la posología o polimedicación.

Outcomes of Peritoneal Dialysis Catheter Left In Place after Kidney Transplantation.

No clear consensus has been reached regarding the optimal time to remove the peritoneal dialysis catheter (PDC) after kidney transplantation (KT). This retrospective observational study, conducted in a single peritoneal dialysis (PD) unit including all PD patients who received a KT between 1995 - 2015, was undertaken to evaluate the clinical outcomes and potential complications associated with a PDC left in place after KT. Of the 132 PD patients who received a KT, 20 were excluded from the study. Of the remaining, 112 (85%) patients with functioning KT were discharged with their PDC left in place and had it removed in a mean interval of 5 ± 3 months after KT, after achieving optimal graft function. During this follow-up period, 7 patients (6%) developed exit-site infection and there were 2 cases (2%) of peritonitis; all of them were successfully treated. Delayed PDC removal after KT is associated with low complication rates, although regular examination is needed so that mild infections can be detected early and therapy promptly instituted.

Choosing conservative therapy in chronic kidney disease.

INTRODUCTION: Incidence of use for various renal replacement therapies is well-known, but no data are available on conservative treatment use. OBJECTIVE: To assess the proportion of patients with chronic kidney failure receiving a conservative treatment. RESULTS: From July 1, 2013 to June 30, 2014, 232 patients with stage 5 CKD were seen in the Nephrology Department. After having received information on existing therapeutic options and having known the opinion of their treating physicians, 81 patients (35%) selected hemodialysis, 56 (24%) preferred peritoneal dialysis, 5 (2%) selected a preemptive transplant from a living donor, and in 90 (39%) a conservative treatment option was selected. In a univariate analysis using logistic regression, variables associated to a preference for conservative treatment were age, Charlson index excluding age, degree of walking difficulties, and functional dependence level, with the first three factors achieving statistical significance in a multivariate analysis. Presence of a severe disease resulting in a poor prognosis was the main reason for selecting a conservative treatment (49%), with the second one being patient refusal to receive a renal replacement therapy (26%). Mortality rate was 8.2/100 patient-months in conservative therapy group versus 0.6/100 patient-months in patients receiving renal replacement therapy (P<.001). In patients receiving conservative therapy, baseline glomerular filtration rate at the time of study enrollment was the sole variable showing a significant impact on survival. CONCLUSIONS: About 39% of patients with stage 5 CKD seen over a 1-year period in the Nephrology Department received conservative therapy. Age, co-morbidity, and functional disability were the factors associated to selecting a conservative therapy option.

Epidemiología, características clínicas y tratamiento de la intoxicación aguda por litio / Acute lithium poisoning: epidemiology, clinical characteristics, and treatment

El litio sigue siendo el tratamiento de elección en el trastorno bipolar. La intoxicación aguda por litio (IAL) es un cuadro potencialmente grave. Se presenta un estudio observacional, retrospectivo de las IAL observadas durante un periodo de 52 meses. Se definió como IAL cuando se registró una concentración de litio en sangre 1,5 mEq/L. Se analizaron sus características clínicas, epidemiológicas y su tratamiento de 70 episodios de IAL (densidad de incidencia: 1,76 IAL por cada 100 pacientes tratados-año). La causa más frecuente de IAL fue un proceso patológico intercurrente (46%). La mayoría fueron de carácter leve (74,2 %), con sintomatología neurológica en el 40,3%. En 8 IAL hubo alteraciones electrocardiográficas, 23 IAL (37,1%) se asociaron con fracaso renal agudo, la mayoría de carácter leve y 11 precisaron hemodiálisis. Se concluye que la IAL es una complicación infrecuente, pero es necesario disminuir su riesgo advirtiendo al paciente ante la existencia de procesos intercurrentes, errores en la posología o polimedicación (AU)

Lithium continues to be the treatment of choice for bipolar disorder. Acute lithium poisoning is a potentially serious event. We present a retrospective observational significative study of episodes of acute lithium poisoning during a 52- month period. Poisoning was defined by a blood lithium concentration of 1.5 mEq/L or higher. We analyzed treatment and epidemiologic and clinical characteristics of 70 episodes were identified (incidence density among treated patients, 1.76 per 100 patient-years). The most frequent cause of lithium poisoning was a concurrent medical condition (46%). Most poisonings were mild (74.2%), but neurologic involvement was identified in 40.3%. Electrocardiographic abnormalities were found in 8 cases. Acute renal failure, found in 23 patients (37.1%), was mild in most cases, although 11 patients required hemodialysis. We concluded that acute lithium poisoning is an uncommon complication, but risk needs to be lowered. Patients should be warned to avoid dosage errors and to take special care during concurrent illnesses and while taking other medications (AU)

Diálisis peritoneal paliativa: implantación de un programa de atención domiciliaria a enfermos tratados con diálisis peritoneal (DP) en situación terminal / Palliative peritoneal dialysis: Implementation of a home care system for patients treated with peritoneal dialysis in terminal situations

Los pacientes en Diálisis peritoneal (DP) en situación terminal suelen ser transferidos ahemodiálisis ya que son incapaces de realizarse la técnica dialítica a consecuencia de que sus capacidades funcionales están disminuidas. Presentamos nuestra experiencia con5 pacientes en DP con patología que amenazaba su vida a corto plazo, cuyo tratamiento fue compartido por las unidades de atención primaria y fueron mantenidos en una modalidad de DP adaptada a sus circunstancias a la que hemos denominado Diálisis Peritoneal Paliativa (AU)

Patients undergoing peritoneal dialysis (PD) in a terminal situation are generally transferred to haemodialysis, given that they are incapable of carrying out the dialysis technique due to the fact that their functional capabilities are diminished. We present our experience with5 patients undergoing PD with pathology that constituted short-term threat to their lives. Their treatment was shared by the primary attention units and they were maintained in a PD mode adapted to their circumstances, which we have called Palliative Peritoneal Dialysis (AU)

Elección de tratamiento conservador en la enfermedad renal crónica / Choosing conservative therapy in chronic kidney disease

Introducción: La incidencia de las diversas modalidades de tratamiento sustitutivo renal es conocida, pero no sucede así con la opción de tratamiento conservador. Objetivo: Conocer la proporción de pacientes con insuficiencia renal crónica sometidos a tratamiento conservador. Resultados: Entre el 1 de julio de 2013 y el 30 de junio de 2014 fueron atendidos en el Servicio de Nefrología 232 casos con ERC en estadio 5. Tras recibir una información sobre las diversas alternativas terapéuticas y con la opinión del médico responsable, 81 enfermos (35%) optaron por el tratamiento con hemodiálisis, 56 (24%) mostraron preferencia por la diálisis peritoneal, 5 (2%) por el trasplante de vivo prediálisis, y en 90 enfermos (39%) se decidió realizar tratamiento conservador. En el análisis univariante de regresión logística las variables asociadas a la elección de tratamiento conservador fueron la edad, el índice de Charlson sin contar la edad, el grado de dificultad para la marcha y el grado de dependencia funcional, quedando los 3 primeros con significación significativa en el análisis multivariante. La existencia de una enfermedad grave con mal pronóstico a corto plazo fue la principal causa por la que se indicó el tratamiento conservador (49%), y la segunda fue la negativa del enfermo a recibir tratamiento sustitutivo renal (26%). La tasa de mortalidad fue de 8,2/100 enfermos-mes en el grupo de tratamiento conservador y de 0,6/100 enfermos-mes en el grupo que decidió optar al tratamiento sustitutivo renal (p<0,001). En el grupo tratado de forma conservadora, el filtrado glomerular en el momento de inclusión en el estudio fue la única variable que influyó de forma estadísticamente significativa sobre la supervivencia. Conclusiones: El 39% de los pacientes con ERC en estadio 5 atendidos durante un año en el Servicio de Nefrología fueron tratados de forma conservadora. Edad, comorbilidad y discapacidad funcional fueron las variables que se relacionaron con la elección de tratamiento conservador (AU)

Introduction: Incidence of use for various renal replacement therapies is well-known, but no data are available on conservative treatment use. Objective: To assess the proportion of patients with chronic kidney failure receiving a conservative treatment. Results: From July 1, 2013 to June 30, 2014, 232 patients with stage 5 CKD were seen in the Nephrology Department. After having received information on existing therapeutic options and having known the opinion of their treating physicians, 81 patients (35%) selected hemodialysis, 56 (24%) preferred peritoneal dialysis, 5 (2%) selected a preemptive transplant from a living donor, and in 90 (39%) a conservative treatment option was selected. In a univariate analysis using logistic regression, variables associated to a preference for conservative treatment were age, Charlson index excluding age, degree of walking difficulties, and functional dependence level, with the first three factors achieving statistical significance in a multivariate analysis. Presence of a severe disease resulting in a poor prognosis was the main reason for selecting a conservative treatment (49%), with the second one being patient refusal to receive a renal replacement therapy (26%). Mortality rate was 8.2/100 patient-months in conservative therapy group versus 0.6/100 patient-months in patients receiving renal replacement therapy (P<.001). In patients receiving conservative therapy, baseline glomerular filtration rate at the time of study enrollment was the sole variable showing a significant impact on survival. Conclusions: About 39% of patients with stage 5 CKD seen over a 1-year period in the Nephrology Department received conservative therapy. Age, co-morbidity, and functional disability were the factors associated to selecting a conservative therapy option (AU)