Meeting Treatment Goals in Patients on Extramural Dialysis in Health Social Security in Mexico.

INTRODUCTION: For the majority of renal replacement therapy history, the main treatment option for patients with end-stage renal disease (ESRD) in Mexico has been peritoneal dialysis. However, the use of hemodialysis is overwhelmingly increasing, driving public health care institutions to subrogate this service. Even when the actual hiring model for subrogation is accurate, there is a lack of quality control points in the hemodialysis prescription, poor adherence to clinical practice guidelines, and a few or no record of outcomes in hemodialysis patients of these subrogated services. The objective of this work is to fill this information gap to allow for uniform and safe hemodialysis for patients of Mexico. MATERIAL AND METHODS: An observational and cross-sectional study was performed, including all patients receiving chronic hemodialysis treatment in subrogated units of Mexican Social Security Institute (IMSS) in the northern region of Mexico City. Clinical and biochemical data as well as hemodialysis dose by Kt/V and urea reduction rate were collected and evaluated. To determine distribution, mean or median and SD or interquartile range were used; for nominal variables, the difference in proportions was estimated using the χ2 test; proportions were analyzed for biochemical values using the statistical package SPSS version 25. RESULTS: In our study, >60% (485) of the patients were anemic with an average hemoglobin of 9.39 mg/dL (SD ± 1.83); serum calcium was found below 8.4 mg/dL in 51.3% (383) of patients, and only in 45.8% (342) was at an optimal level of this parameter. Only 33.5% of patients have arteriovenous fistula for dialysis access. The hemodialysis dose was optimal in >75% of patients. CONCLUSIONS: It is necessary to enhance and monitor treatment of comorbidities in patients with ESRD in subrogated hemodialysis units in México. We observed adequate prescription of hemodialysis in a majority of patients, achieving quality control points for removal of nitrogen products. Yet, there is a lack of quality control of comorbidities; therefore, we should aim to optimize treatment for mineral-bone disorder, anemia, and nutritional status.

Holter heart rhythm disorders in patients with acute kidney injury during hemodialysis / Trastornos del ritmo cardiaco por Holter en pacientes con lesión renal aguda durante hemodiálisis

BACKGROUND: The presence of acute renal injury has been associated with increased cardiovascular morbidity and mortality (sudden death and arrhythmias). OBJECTIVE: To know the frequency of heart rhythm disorders documented by Holter in patients in need of intermittent hemodialysis due to acute renal injury. MATERIAL AND METHODS: A prospective observational study was conducted including patients with a diagnosis of acute renal injury who received intermittent hemodialysis; demographic, clinical and laboratory data were collected from 28 patients. Monitoring was carried out through Holter before, during and after the hemodialysis session. Nonparametric statistics were used, with a significant value of p < 0.05. Risks were established with logistic regression. RESULTS: There was a significant difference in supraventricular extra systoles (82.1% vs. 57.1%), ventricular extra systoles (26.7% vs. 3.6%), and supraventricular tachycardia (6.7% vs. 3.6%). The rest of the rhythm alterations without significance. CONCLUSIONS: Intermittent hemodialysis is a factor associated with the appearance of heart rhythm disorders. The death of patients with acute renal injury and substitution was related to ventricular extra systole detected by transhemodialysis Holter.

INTRODUCCIÓN: La presencia de lesión renal aguda se ha asociado a unas mayores morbilidad y mortalidad de causa cardiovascular (muerte súbita y arritmias). OBJETIVO: Conocer la frecuencia de trastornos del ritmo cardiaco documentado por Holter en pacientes con necesidad de hemodiálisis intermitente por lesión renal aguda. MATERIAL Y MÉTODOS: Se realizó un estudio observacional, prospectivo, en pacientes con diagnóstico de lesión renal aguda que recibieron hemodiálisis intermitente; se recabaron datos demográficos, clínicos y de laboratorio de 28 pacientes. Se realizó monitoreo mediante Holter, previo, durante y posterior a la sesión de hemodiálisis. Se utilizó estadística no paramétrica, con un valor significativo de p < 0.05. Se establecieron riesgos con regresión logística. RESULTADOS: Hubo diferencia significativa en extrasístoles supraventriculares (82.1% frente a 57.1%), extrasístoles ventriculares (26.7% frente a 3.6%) y taquicardia supraventricular (6.7% frente a 3.6%). El resto de las alteraciones del ritmo no mostraron significancia. CONCLUSIONES: La hemodiálisis intermitente es un factor asociado a la aparición de trastornos del ritmo cardiaco. La muerte de los pacientes con lesión renal aguda y sustitución estuvo relacionada con la extrasístole ventricular detectada por Holter transhemodiálisis.

[Long-term patient and graft survival in kidney transplant recipients]. / Supervivencia del paciente y del injerto a largo plazo en receptores de trasplante renal.

BACKGROUND: Kidney transplantation is the therapy of choice for patients with chronic renal failure. In Mexico, good short-term results have been reported for graft survival, which is why it was carried out a study in a third level center in Mexico City to broaden these results. OBJECTIVE: To identify long-term results of patient and graft survival. MATERIAL AND METHODS: Retrospective study with first 1600 kidney transplants performed at the Hospital de Especialidades (Specialties Hospital) "Dr. Antonio Fraga Mouret" from La Raza National Medical Center. Patient and graft survival was analyzed at 1, 3, 5, 7 and 10 years. Kaplan Meier survival analysis and log rank test were performed. RESULTS: Between October 1979 and May 2015, 1600 kidney transplants were performed (1473 [92.1%] of living donor and 127 [7.9%] of deceased donor). Graft survival censored for death with functional graft at 1, 3, 5, 7 and 10 years was 95.4, 91.7, 88.2, 86.6 and 85.5%, respectively. Patient survival was 92.7, 90.4, 89.7, 89.4, and 88.9% at 1, 3, 5, 7 and 10 years, respectively. CONCLUSIONS: Long-term patient and graft survival in our center is similar to that reported by other centers at an international level.

INTRODUCCIÓN: el trasplante renal es la terapia de elección en pacientes con insuficiencia renal crónica. En México se reportan buenos resultados a corto plazo, por lo que se realizó un estudio en un centro de tercer nivel de la Ciudad de México para ampliar estos resultados. OBJETIVO: conocer los resultados en supervivencia del paciente e injerto a largo plazo. MATERIAL Y MÉTODOS: estudio retrospectivo con los primeros 1600 trasplantes renales realizados en el Hospital de Especialidades "Dr. Antonio Fraga Mouret" del Centro Médico Nacional La Raza. Se analizó la sobrevida de paciente e injerto a los 1, 3, 5, 7 y 10 años. Se utilizó análisis de supervivencia de Kaplan Meier y prueba de log rank. RESULTADOS: entre octubre de 1979 y mayo de 2015 se realizaron 1600 trasplantes renales (1473 [92.1%] de donante vivo y 127 [7.9%] de donante fallecido). La supervivencia del injerto censurada para muerte con injerto funcional a 1, 3, 5, 7 y 10 años fue de 95.4, 91.7, 88.2, 86.6 y 85.5%, respectivamente, en tanto que la supervivencia del paciente fue de 92.7, 90.4, 89.7, 89.4 y 88.9% a los 1, 3, 5, 7 y 10 años, respectivamente. CONCLUSIONES: la sobrevida de paciente e injerto a largo plazo en este centro es similar a lo reportado en otros centros a nivel internacional.

[Prediction of acute kidney injury in critically ill patients treated with intermittent hemodialysis versus CRRT]. / Pronóstico de lesión renal aguda en pacientes críticamente enfermos tratados con hemodiálisis intermitente frente a TRRC.

BACKGROUND: Acute kidney injury (AKI) is common in critically ill patients and it is associated with poor outcome. Some patients require renal replacement therapy (RRT), and the most frequently used are intermittent hemodialysis (IHD) and continuous renal replacement therapies (CRRT). Current evidence is insufficient to conclude which modality is most appropriate to treat critically ill patients with AKI. METHODS: We reviewed the clinical records of critically ill patients with stage 3 AKI treated with RRT. We recorded demographic and clinical data and serum creatinine. We compared the evolution and prognosis of patients treated with IHD versus those treated with CRRT by Student's t test, chi squared, Kaplan-Meier curves, and Cox regression. Logistic regression was performed to determine the association between RRT and mortality. RESULTS: We analyzed 221 patients; the mean age was 49.8 years, and 55.2% were men. Mortality was 36.7%. IHD was used in 73.8% and CRRT in 26.2% of cases. In the group treated with CRRT, the severity of disease was higher, the recovery of renal function less frequent, the need for long-term RRT less frequent, and mortality higher, compared with those treated with IHD. CRRTs had an odds ratio (OR) of 8.64 for mortality (p = 0.063). CONCLUSIONS: IHD is the RRT most frequently used. Mortality is higher in patients treated with CRRT. CRRTs are not an independent risk factor for death.

INTRODUCCIÓN: la lesión renal aguda (LRA) es frecuente en los pacientes críticamente enfermos y se asocia con mal pronóstico. Algunos requieren terapias de reemplazo renal (TRR) y las más frecuentemente utilizadas son la hemodiálisis intermitente (HDI) y las terapias de reemplazo renal continuo (TRRC). La evidencia actual es insuficiente para concluir cuál modalidad es más apropiada para tratar a pacientes críticamente enfermos con LRA. MÉTODOS: revisamos expedientes clínicos de pacientes críticamente enfermos con LRA en estadio 3, tratados con TRR. Registramos datos demográficos y clínicos y creatinina sérica. Comparamos la evolución y el pronóstico de aquellos tratados con HDI frente a los tratados con TRRC mediante pruebas t de Student, chi cuadrada, Kaplan-Meier y regresión de Cox. Hicimos regresión logística para determinar la asociación entre TRR y mortalidad. RESULTADOS: analizamos 221 pacientes con edad promedio de 49.8 años; 55.2% fueron hombres. La mortalidad fue de 36.7%. La HDI se utilizó en 73.8% y las TRRC en 26.2% de los casos. En el grupo tratado con TRRC la gravedad de la enfermedad fue mayor, la recuperación de la función renal menos frecuente, la necesidad de TRR a largo plazo menos frecuente y la mortalidad mayor, en comparación con los tratados con HDI. Las TRRC tuvieron una razón de momios (RM) de 8.64 para mortalidad (p = 0.063). CONCLUSIONES: la HDI es la TRR más frecuentemente utilizada. La mortalidad es mayor en los pacientes tratados con TRRC. Las TRRC no son un factor de riesgo independiente de muerte.

[Modification of health-related quality of life in kidney transplant recipients]. / Modificación de la calidad de vida relacionada con la salud en receptores de trasplante renal.

INTRODUCTION: The assessment of health-related quality of life is essential to renal replacement therapies. We conducted a study to evaluate the change in quality of life at 6 and 12 months after renal transplantation and compared with healthy population and general population. METHODS: A prospective study in 278 renal transplant recipients using the SF-36 survey at 0, 6 and 12 months after transplantation. The results were compared with those obtained in healthy population (kidney donors) and general population. Student t test was employed for comparisons of means. A value of p<0.05 was considered statistically significant. RESULTS: The quality of life before transplantation was lower than that observed in healthy population and the general population (p<0.001). At 6 months of transplantation significant improvement over the baseline measurement (p<0.001) in the 8 domains and the two composite scales was obtained, but at 12 months, an additional benefit was not observed. The quality of life of recipients at 12 months of transplant was lower only in the concept of general health (p=0.035) compared with healthy population. However, it was higher than general population in physical and mental composite scales (p=0.013 and p=0.001 respectively). CONCLUSIONS: The health related quality of life improved significantly at 6 and 12 months after renal transplantation, achieving equated healthy population and general population.

Introducción: la evaluación de la calidad de vida relacionada con la salud es fundamental en las terapias de reemplazo renal. Realizamos un estudio para evaluar la modificación en la calidad de vida a los 6 y 12 meses del trasplante renal y compararla con población sana y población general. Métodos: se realizó un estudio prospectivo en 278 receptores renales aplicando la encuesta SF-36 a los 0, 6 y 12 meses del trasplante. Los resultados fueron comparados con los obtenidos en población sana (donantes renales) y población general. Se empleó prueba t de student para realizar las comparaciones de medias. Una p < 0.05 fue considerada estadísticamente significativa.Resultados: la calidad de vida previa al trasplante fue inferior a la observada en población sana y población general (p < 0.001). A los 6 meses de trasplante se obtuvo mejoría significativa con respecto a la medición basal (p < 0.001) en los 8 dominios y las dos escalas compuestas, pero a los 12 meses no se observó un beneficio adicional. La calidad de vida de los receptores a los 12 meses de trasplante fue inferior solo en el concepto de salud general (p = 0.035) al compararse con la población sana. No obstante, fue superior a la población general en las escalas compuestas física y mental (p = 0.013 y p = 0.001 respectivamente).Conclusiones: la calidad de vida relacionada con la salud mejora significativamente a los 6 y 12 meses del trasplante renal, logrando equipararse con población sana y población general.