RESUMEN
Renal biopsy remains the "gold standard" for the diagnosis of renal allograft dysfunction. The aim of our study was to highlight the importance of renal biopsy in the management of allograft dysfunction (early diagnosis and therapeutic approach). Our study included 23 renal allograft biopsies from 20 patients. This retrospective study analyzed the demographic and clinical data, histological results and the evolution of renal function under the immunosuppressive regimens. Conclusions: The most frequently encountered histopathological patterns were humoral rejection, interstitial fibrosis and chronic cellular rejection. Patients under continuous treatment with cyclosporine developed chronic cellular reject more frequently; on the opposite, patients under continuous treatment with tacrolimus developed chronic humoral reject more frequently.
Asunto(s)
Biopsia , Ciclosporina/uso terapéutico , Rechazo de Injerto/patología , Rechazo de Injerto/prevención & control , Inmunosupresores/uso terapéutico , Trasplante de Riñón , Tacrolimus/uso terapéutico , Adolescente , Adulto , Ciclosporina/efectos adversos , Femenino , Rechazo de Injerto/diagnóstico , Supervivencia de Injerto , Humanos , Inmunosupresores/efectos adversos , Enfermedades Renales/diagnóstico , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Tacrolimus/efectos adversosRESUMEN
UNLABELLED: Protein-calorie malnutrition is a common complication and an important predictive factor for mortality in patients with end-stage renal disease on maintenance dialysis. Therefore, nutritional status needs to be regularly assessed in these patients by using several methods. If malnutrition is diagnosed, its causes should be thoroughly searched for and properly treated. MATERIAL AND METHOD: This cross-section study aimed at evaluating the nutritional status and the possible risk factors for malnutrition in 149 (82 men) hemodialysis patients by anthropometry, biochemical tests and bioelectrical impedance analysis (BIA). The patients' height (H), post-dialysis body weight (BW), mid-arm circumference (MAC), tricipital skin-fold thickness (TST) were measured and a 3-category subjective global assessment (SGA) was performed. Body mass index (BMI), mid-arm muscle circumference (MAMC), corrected mid-arm muscle area (cMAMA) and anthropometry-estimated percent body muscle mass (% AMM) were calculated from the above measurements by using specific equations. Biochemical tests included protein equivalent of nitrogen appearance (nPNA), and predialysis serum albumin, creatinine, total cholesterol, bicarbonate, and hemoglobin (Hb) levels. We used BIA to estimate body composition - i.e. percent body fat (% BBF), fat-free mass (% FFM), body cell mass (% BCM), extracellular mass (% ECM), muscle mass (% BMM)--and the phase angle (PhA). T-test was used to make comparisons and Pearson coefficient to analyze the correlations. P < 0.05 was considered statistically significant. RESULTS: The male patients had a higher mean muscle mass--as estimated by serum creatinine (9.8 s 8.3 mg/dl; P < 0.0001) and by % BMM (41.7% vs 34.7%)--and a lower fat mass--as estimated by TST (0.95 cm vs 1.2 cm; P = 0.016) and by % FAT (16.7% vs 31.3%; P < 0.0001) than the female patients. Age was found to be positively correlated with BMI (P = 0.001), but inversely correlated with % BCM (P = 0.013) and with % AMM (P = 0.003). Patients with diabetes had lower % BCM than those without diabetes (32.9 vs 35.9%; P = 0.041). The presence of heart failure was associated with significantly reduced MAMC (22.0 vs 23.6 cm2; P = 0.045), % AMM (28.5 vs 32.1; P = 0.021), % BCM (33.0 vs 36.1% ; P = 0.034), BMM/H2 (8.6 vs 9.4 kg/m2; P = 0.013), nPNA (1.17 vs 1.34 g/kg-d ; P = 0.047), serum albumin (39.7 vs 42.4 g/l; P = 0.010), serum creatinine (8.1 vs 9.4 mg/dl; P = 0.008) and Hb (10.5 vs 11.2 g/dl; P = 0.017). The serum Hb level was positively correlated with BMI (P = 0.005), BMM/H2 (P = 0.009), serum albumin (P = 0.002) and serum creatinine (P = 0.011). Also, patients with category B-SGA were older (63.7 vs 50.1 y.o.; P < 0.0001) and had more heart failure (42% vs 13%; P = 0.013) than those with category A-SGA. In hemodialysis patients, advancing age, diabetes, heart failure and decreasing Hb levels are associated with worse nutritional status, as estimated by anthropometry, biochemical markers and BIA. Whether treatment of comorbidities such as heart disease and anemia may improve nutritional status in these patients is an important issue that deserves further research.
Asunto(s)
Estado Nutricional , Desnutrición Proteico-Calórica/diagnóstico , Diálisis Renal , Tejido Adiposo , Anciano , Algoritmos , Bicarbonatos/sangre , Biomarcadores/metabolismo , Nitrógeno de la Urea Sanguínea , Composición Corporal , Índice de Masa Corporal , Colesterol/sangre , Creatinina/sangre , Estudios Transversales , Impedancia Eléctrica , Femenino , Hemoglobinas/deficiencia , Humanos , Fallo Renal Crónico/complicaciones , Fallo Renal Crónico/terapia , Masculino , Persona de Mediana Edad , Evaluación Nutricional , Desnutrición Proteico-Calórica/etiología , Desnutrición Proteico-Calórica/metabolismo , Desnutrición Proteico-Calórica/mortalidad , Diálisis Renal/efectos adversos , Factores de Riesgo , Rumanía/epidemiología , Albúmina Sérica/metabolismo , Índice de Severidad de la Enfermedad , Grosor de los Pliegues CutáneosRESUMEN
The recommendations for spark gap lithotripters include that the shock waves must be delivered according to the ECG, avoiding the discharge during the refractory part of the heart activity. The lithotripters we have in our department does not have from the factory an ECG correlated triggering system. Observing that ESWL for patients without heart problems did not induced arrhythmias, we decide to perform this procedure under strict cardiologic supervision to the patients having arrhythmias (chronic fibrillation, chronic atrial fibrillation, supraventricular arrhythmias, supraventricular premature beats, ventricular premature beats, ventricular tachycardia). All the ESWIL sessions did not have any major incidents and all the patients return home safe, without any changes of the cardiac medication. Even we did not notice any aggravation of the cardiac arrhythmias during ESWL we consider that the careful monitoring of the patients by the cardiologist is necessary during the procedure, most of all when the spark gap lithotripter has not an ECG triggering system.
Asunto(s)
Arritmias Cardíacas/complicaciones , Cálculos Renales/terapia , Litotricia/métodos , Anciano , Electrocardiografía , Femenino , Humanos , Cálculos Renales/complicaciones , Litotricia/instrumentación , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Rumanía , Resultado del Tratamiento , Servicio de Urología en HospitalRESUMEN
AIM: To analyse the immuno-biological profile of patients with antineutrophil cytoplasmic antibodies (ANCA) presents. This is a retrospective study of all ANCA positives cases from Nephrology Clinic Iasi during five years (1998-2003) on a cohort of 97 patients. RESULTS: pANCA was positive in 28, cANCA was positive in 60 and the others had pANCA and cANCA. The diseases ANCA associated were: systemic vasculitis, rapidly progressive glomerulonephritis (GNRP), chronic renal failure of an unknown etiology. ANCA presence was associated with inflammatory syndrome in 83.5%, anemic syndrome in 71.1%. From the patients with renal disfunction (71.1%), half of them presented an increased level of creatinine (>6 mg%). Renal biopsy proven especially crescentic glomerulonephritis. The complications and the diseases were more frequent in cANCA cases. CONCLUSIONS: cANCA presence is a negative prognosis factor in vasculitis; testing ANCA alone cannot be used to guide treatment.
Asunto(s)
Anticuerpos Anticitoplasma de Neutrófilos/sangre , Glomerulonefritis/inmunología , Vasculitis/inmunología , Adulto , Algoritmos , Biomarcadores/sangre , Estudios de Cohortes , Femenino , Glomerulonefritis/sangre , Humanos , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Vasculitis/sangreRESUMEN
UNLABELLED: We analysed the clinical profile of antineutrophil cytoplasmic antibodies (ANCA) positive patients in a retrospective study including all cases of ANCA positivity (determined by ELISA) from the Nephrology Clinic, Parhon University Hospital Iasi during the interval 1998-2003. There were 97 ANCA positive patients (mean age 43.7 s18-75t years, female/male ratio 1.55), of whom almost two thirds had c-ANCA, almost one third p-ANCA, while 9 patients had both types of antibodies. The incidence was 22.5/pmp for the North-Eastern province of Romania. Just 19.3% from the suspected cases with ANCA-associated disease were positive for these antibodies. 47.7% had systemic vasculitis (10 with microscopic polyangiitis--MA, 6 with Wegener's granulomatosis--WG, 1 with Churg-Strauss angiitis, 29 with non-specific vasculitis--NSV). Twenty-seven (27.8%) had connective tissue disease--CTD (systemic lupus erythematosus, rheumatoid arthritis, polymyositis, systemic sclerosis, mixed connective tissue disease, and sarcoidosis), while in 5 cases ANCA were associated with other diseases. Nine cases presented with rapid progressive glomerulonephritis (RPGN) without signs of systemic involvement, and other ten with advanced chronic renal failure (CRF). The most frequent clinical manifestations involved the kidney (71%), the skin, the muscles and joints, and the cardiovascular system. CONCLUSIONS: ANCA positivity is associated with a wide spectrum of diseases, mostly with CTD and NSV. c-ANCA was predominantly seen in WG and advanced CRF, while p-ANCA was associated with MA. In nonspecific vasculitis and connective tissue diseases, both patterns were present. We recommend ANCA determination as a screening method in all cases with renal dysfunction and nephritic syndrome and/or with signs of systemic vasculitis and/or collagenosis.