RESUMEN

Objective: chronic kidney disease (CKD) is an increasing common problem in the world due to the exponential growth of diabetes mellitus, hypertension and other risk factors. The aim of this study is to investigate urinary abnormalities and risk factors for kidney disease in the general population. Methods: this study was performed from data collected during the annual World Kidney Day (WKD) campaigns, in Fortaleza, Ceará, Brazil, between 2009 and 2012. The population sought assistance spontaneously in stands placed in high people-traffic areas. Results: among 2,637 individuals interviewed, the mean age was 50.7±15.7 years and 53% were male. The main risk factors found were sedentarism (60.7%), obesity (22.7%) and smoking (19.8%). Blood pressure (BP) > 140x90 mmHg was found in 877 (33%). Increased BP was found for the first time in 527 cases (19.9%). Cardiovascular diseases were reported in 228 (8.6%). Diabetes was related by 343 (13%). Capillary blood glucose > 200 mg/dL was found in 127 (4.8%) and it was > 200 mg/dL for the first time in 30 (1.13%). Urinalysis was performed in 1,151 people and found proteinuria in 269 (23.3%). Proteinuria was most frequent in hypertension people (77.3% vs. 55.8%, p=0.0001), diabetes mellitus (22.7% vs. 15.2%, p=0.005) and elderly (42.1% vs. 30.7%, p=0.0007). Conclusion: risk factors for CKD are frequent in the general population. Many individuals had hypertension and diabetes and did not know this. It is important to regularly perform actions like WKD in order to early detect potential candidates for CKD. .

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Objetivo: a doença renal crônica (DRC) é um problema crescente no mundo em razão do crescimento exponencial do diabetes mellitus, da hipertensão e de outros fatores de risco. O objetivo deste estudo é investigar alterações urinárias e fatores de risco para doença renal na população geral. Métodos: este estudo foi realizado a partir de dados coletados durante as campanhas anuais do Dia Mundial do Rim, em Fortaleza, Ceará, Brasil, entre 2009 e 2012. A população buscou atendimento espontaneamente nos stands montados em locais de alto tráfego de pessoas. Resultados: entre 2.637 indivíduos entrevistados, a média de idade foi de 50,7±15,7 anos, sendo 53% do gênero masculino. Os principais fatores de risco encontrados foram sedentarismo (60,7%), obesidade (22,7%) e tabagismo (19,8%). Pressão arterial (PA) > 140x90 mmHg foi encontrada em 877 casos (33%). Aumento da PA foi encontrado pela primeira vez em 527 casos (19,9%). Doenças cardiovasculares foram relatadas por 228 indivíduos (8,6%). Diabetes foi relatado por 343 indivíduos (13%). Glicemia capilar > 200 mg/dL foi encontrada em 127 casos (4,8%) e > 200 mg/dL pela primeira vez em 30 (1,13%). O exame de urina foi realizado por 1.151 pessoas, sendo encontrada proteinúria em 269 casos (23,3%). Proteinúria foi mais frequente em pessoas com hipertensão (77,3% vs. 55,8%, p = 0,0001), diabetes mellitus (22,7% vs. 15,2%, p = 0,005) e em idosos (42,1% vs. 30,7%, p = 0,0007). Conclusão: fatores de risco para DRC são frequentes na população geral. Muitos indivíduos tinham hipertensão e diabetes e não sabiam disso. É importante a realização de ações como o Dia Mundial do Rim com o objetivo de detectar precocemente potenciais candidatos à DRC. .

RESUMEN

BACKGROUND: Renal abnormalities are often seen in sickle cell disease (SCD). OBJECTIVE: To investigate the role of hydroxycarbamide as a protective agent in sickle cell nephropathy. SETTING: Patients with SCD followed at a Hematology outpatients clinic. METHODS: Prospective study with 26 SCD patients. Renal function evaluation was performed and a comparison between patients and control group was done. Patients using hydroxycarbamide were compared to those not taking this drug. MAIN OUTCOME MEASURE: Effect of hydroxycarbamide on renal function. RESULTS: Patients mean age was 32.1 ± 9.9 years, and 16 (61 %) were males. Glomerular hyperfiltration was found in nine patients with SCD (34.6 %). GFR < 60 mL/min/1.73 m² was observed in three cases (11.5 %). Microalbuminuria (30-300 mg/day) was found in seven cases (27 %) and macroalbuminuria (>300 mg/dia) in one patient (3.8 %). All patients had urinary concentrating deficit, and inability to acidify urine was found in ten cases (38.4 %). The comparison of patients according to the use of hydroxycarbamide showed lower levels of serum creatinine in those using the drug (0.6 ± 0.1 vs. 0.8 ± 0.3 mg/dL, p = 0.03), as well as lower levels of 24 h-proteinuria (226 ± 16 vs. 414 ± 76 mg/dL, p = 0.0001), but not microalbuminuria (79 ± 15 vs. 55 ± 86 mg/dL, p = 0.35). CONCLUSION: SCD is associated with important renal abnormalities. Hydroxycarbamide seems to protect kidney function in SCD by decreasing proteinuria but not microalbuminuria.

Asunto(s)

Anemia de Células Falciformes/tratamiento farmacológico , Antidrepanocíticos/uso terapéutico , Hidroxiurea/uso terapéutico , Riñón/efectos de los fármacos , Proteinuria/prevención & control , Adulto , Anemia de Células Falciformes/sangre , Anemia de Células Falciformes/fisiopatología , Anemia de Células Falciformes/orina , Brasil , Estudios de Cohortes , Femenino , Barrera de Filtración Glomerular/efectos de los fármacos , Barrera de Filtración Glomerular/fisiopatología , Tasa de Filtración Glomerular/efectos de los fármacos , Hospitales Universitarios , Humanos , Concentración de Iones de Hidrógeno , Riñón/fisiopatología , Capacidad de Concentración Renal/efectos de los fármacos , Masculino , Persona de Mediana Edad , Servicio Ambulatorio en Hospital , Proteinuria/etiología , Índice de Severidad de la Enfermedad , Adulto Joven

RESUMEN

Depression is frequent in end-stage renal disease (ESRD) and predicts mortality in dialysis patients. The aim of this study was to investigate the occurrence of depression among patients on hemodialysis. We conducted an observational cross-sectional study at two hemodialysis centres in the metropolitan area of Fortaleza, Ceará, Brazil, between September and October 2010. The occurrence of depression was evaluated according to Beck Depression Inventory II. Among 148 patients interviewed, the mean age was 46 ± 13 years and 54% were male. The average time on dialysis was 5.3 ± 5.2 years. Depression was found in 101 (68.2%) cases. Depression was classified as mild (49.5%), moderate (41.5%) and severe (9%). Only 15.5% had prior depression diagnosis. Follow-up with Psychologist was being done in only 32.4% of cases. Patients with depression had a higher frequency of antidepressant use (20.7% vs. 4.2%, p=.01) and benzodiazepines (33.6% vs. 8.5%, p=.001). Among patients using antidepressant, improvement of symptoms was reported by 81.6%. Depression is one potentially modifiable risk factor in ESRD. The investigation and multidisciplinary approach of depression should be part of routine evaluation of patients on dialysis.

Asunto(s)

Depresión/psicología , Fallo Renal Crónico/psicología , Diálisis Renal/psicología , Adulto , Brasil/epidemiología , Comorbilidad , Depresión/tratamiento farmacológico , Depresión/epidemiología , Femenino , Humanos , Fallo Renal Crónico/epidemiología , Masculino , Persona de Mediana Edad , Diálisis Renal/estadística & datos numéricos , Factores Socioeconómicos

RESUMEN

Abstract. Hypercalcemia caused by tuberculosis is rare and it is usually asymptomatic. Tuberculosis (TB) -related hypercalcemia associated with acute kidney injury (AKI) is rarely reported. We report a case of a 22-year-old immunocompetent man with 1-month history of daily fever, asthenia and weight loss. Laboratory findings on admission included serum calcium 14.9 mg/dL, urinary Ca(2+) 569.6 mg/24 hours, low level of parathyroid hormone, serum creatinine = 2.2 mg/dL and sodium fractional excretion (FeNa) 2.73%. The result of the tuberculin skin test was 17 mm. A chest X-ray revealed micronodular pulmonary infiltrate in the apex of the right lung, which was confirmed by computed tomography scan. The patient was diagnosed with hypercalcemia associated with pulmonary TB and AKI. A general improvement of the hypercalcemia and renal function was observed in the first 2 weeks after effective hydration and treatment of TB without corticosteroids. The patient was discharged with normal calcium levels and renal function.

Asunto(s)

Lesión Renal Aguda/complicaciones , Antituberculosos/uso terapéutico , Hipercalcemia/complicaciones , Tuberculosis Pulmonar/complicaciones , Tuberculosis Pulmonar/tratamiento farmacológico , Lesión Renal Aguda/diagnóstico por imagen , Lesión Renal Aguda/patología , Calcio/sangre , Humanos , Hipercalcemia/patología , Riñón/diagnóstico por imagen , Masculino , Prótesis Osicular , Ultrasonografía , Adulto Joven

RESUMEN

BACKGROUND: Brown tumor, a non-neoplastic process resulting from excess osteoclast activity, is found in primary hyperparathyroidism (HPTP) and secondary hyperparathyroidism (HPTS). We report a rare case of multiple spinal cord compression by brown tumors. CASE REPORT: A 47-year-old male with end-stage renal disease caused by hypertensive nephrosclerosis, on hemodialysis for 10 years and diagnosed with severe HPTS, developed back pain and sudden onset of gait difficulties progressing to paraplegia. A previous computed tomography (CT) of the lumbosacral spine demonstrated a solid lesion, located in the body of the sacrum, at S1-S2 level, with fine bone edge sclerosis, suggestive of brown tumor. A magnetic resonance imaging without gadolinium injection was performed. The examination revealed an insufflating bone lesion at thoracic level (T5/T6). Posterior laminectomy was followed by tumor excision. Histopathological analysis showed osteoid tissue streaked by fibroplasia with hemosiderin granulation. CONCLUSION: Differential diagnosis of sudden neurologic deficits and paraplegia in renal patients with secondary HPPT must consider the possibility of brown tumor.

Asunto(s)

Enfermedades Óseas/complicaciones , Hiperparatiroidismo Secundario/complicaciones , Fallo Renal Crónico/complicaciones , Compresión de la Médula Espinal/etiología , Enfermedades Óseas/diagnóstico , Diagnóstico Diferencial , Humanos , Hiperparatiroidismo Secundario/diagnóstico , Fallo Renal Crónico/terapia , Laminectomía , Imagen por Resonancia Magnética , Masculino , Persona de Mediana Edad , Compresión de la Médula Espinal/diagnóstico , Compresión de la Médula Espinal/cirugía , Tomografía Computarizada por Rayos X

RESUMEN

BACKGROUND: There are no reports on hyponatremia and acute kidney injury (AKI) involved in the course of HIV-related toxoplasmic encephalitis (TE). The main objective of this study was to describe the occurrence of hyponatremia and its relationship with AKI and mortality in HIV-related toxoplasmic encephalitis (TE). METHODS: This was a retrospective cohort study on patients with HIV-related TE. AKI was considered only when the RIFLE (risk, injury, failure, loss, end-stage) criterion was met, after the patient was admitted. RESULTS: A total of 92 patients were included, with a mean age of 36 ± 9 years. Hyponatremia at admission was observed in 43 patients (46.7%), with AKI developing in 25 (27.1%) patients during their hospitalization. Sulfadiazine was the treatment of choice in 81% of the cases. Death occurred in 13 cases (14.1%). Low serum sodium level correlated directly with AKI and mortality. Male gender (OR 7.89, 95% CI 1.22-50.90, p = 0.03) and hyponatremia at admission (OR 4.73, 95% CI 1.22-18.30, p = 0.02) were predictors for AKI. Independent risk factors for death were AKI (OR 8.3, 95% CI 1.4-48.2, p < 0.0001) and hyponatremia (or 9.9, 95% ci 1.2-96.3, p < 0.0001). CONCLUSION: AKI and hyponatremia are frequent in TE. Hyponatremia on admission is highly associated with AKI and mortality.

Asunto(s)

Adulto , Femenino , Humanos , Masculino , Infecciones Oportunistas Relacionadas con el SIDA/complicaciones , Lesión Renal Aguda/etiología , Hiponatremia/etiología , Toxoplasmosis Cerebral/complicaciones , Infecciones Oportunistas Relacionadas con el SIDA/mortalidad , Lesión Renal Aguda/mortalidad , Estudios de Cohortes , Mortalidad Hospitalaria , Hiponatremia/mortalidad , Estudios Retrospectivos , Toxoplasmosis Cerebral/mortalidad

RESUMEN

BACKGROUND: There are no reports on hyponatremia and acute kidney injury (AKI) involved in the course of HIV-related toxoplasmic encephalitis (TE). The main objective of this study was to describe the occurrence of hyponatremia and its relationship with AKI and mortality in HIV-related toxoplasmic encephalitis (TE). METHODS: This was a retrospective cohort study on patients with HIV-related TE. AKI was considered only when the RIFLE (risk, injury, failure, loss, end-stage) criterion was met, after the patient was admitted. RESULTS: A total of 92 patients were included, with a mean age of 36±9 years. Hyponatremia at admission was observed in 43 patients (46.7%), with AKI developing in 25 (27.1%) patients during their hospitalization. Sulfadiazine was the treatment of choice in 81% of the cases. Death occurred in 13 cases (14.1%). Low serum sodium level correlated directly with AKI and mortality. Male gender (OR 7.89, 95% CI 1.22-50.90, p = 0.03) and hyponatremia at admission (OR 4.73, 95% CI 1.22-18.30, p = 0.02) were predictors for AKI. Independent risk factors for death were AKI (OR 8.3, 95% CI 1.4-48.2, p < 0.0001) and hyponatremia (OR 9.9, 95% CI 1.2-96.3, p < 0.0001). CONCLUSION: AKI and hyponatremia are frequent in TE. Hyponatremia on admission is highly associated with AKI and mortality.

Asunto(s)

Infecciones Oportunistas Relacionadas con el SIDA/complicaciones , Lesión Renal Aguda/etiología , Hiponatremia/etiología , Toxoplasmosis Cerebral/complicaciones , Infecciones Oportunistas Relacionadas con el SIDA/mortalidad , Lesión Renal Aguda/mortalidad , Adulto , Estudios de Cohortes , Femenino , Mortalidad Hospitalaria , Humanos , Hiponatremia/mortalidad , Masculino , Estudios Retrospectivos , Toxoplasmosis Cerebral/mortalidad

RESUMEN

Despite their significant influence on the quality of life, depressive symptoms are not usually included as a clinical parameter in the evaluation of hemodialysis patients. We aimed to identify depressive symptoms and associated risk factors in a large group of individuals with end-stage renal disease (ESRD) on chronic hemodialysis. This was a cross-sectional study of 400 consecutive patients. Cases were analyzed according to the presence/absence of depressive symptoms. All individuals were investigated by interview, and all variables were measured concurrently. Depressive symptoms were evaluated by the Beck Depression Inventory (BDI-II ≥16) and sleep quality by the Pittsburgh Sleep Quality Index (PSQI > 5). Among the 400 patients (59% male), depressive symptoms were present in 77 (19.3%). Depressive symptoms were more common in women and were independently associated with poor sleep quality (P = <0.005), unemployment (P = 0.001), diabetes (P = 0.02), hypoalbuminemia (P = 0.01), low education (P = 0.03), and pruritus (P = 0.04). Women with ESRD on chronic hemodialysis are at increased risk of depression. Furthermore, unemployment and the presence of diabetes, hypoalbuminemia, low education, and pruritus are significantly associated with depressive symptoms. Depressive symptoms are also independently associated with poor quality sleep and studies about the effects of sleep hygiene therapy on depressive symptoms are warranted.

Asunto(s)

Depresión/epidemiología , Fallo Renal Crónico/terapia , Diálisis Renal/efectos adversos , Adulto , Anciano , Anciano de 80 o más Años , Brasil/epidemiología , Estudios Transversales , Depresión/etiología , Femenino , Humanos , Incidencia , Fallo Renal Crónico/complicaciones , Fallo Renal Crónico/psicología , Masculino , Persona de Mediana Edad , Prevalencia , Estudios Retrospectivos , Factores de Riesgo , Adulto Joven

RESUMEN

The aim of this study is to investigate the changes in clinical pattern and therapeutic measures in leptospirosis-associated acute kidney injury; a retrospective study with 318 patients in Brazil. Patients were divided according to the time of admission: 1985-1996 (group I) and 1997-2010 (group II). Patients were younger in group I (36 ± 13 versus 41 ± 16 years, P = 0.005) and the numbers of oliguria increased (21% versus 41% in group II, P = 0.014). Higher frequency of lung manifestations was observed in group II (P < 0.0001). Although increased severity, there was a significant reduction in mortality (20% in group I versus 12% in group II, P = 0.03). Mortality was associated with advanced age, low diastolic blood pressure, oliguria, arrhythmia, and peritoneal dialysis, besides a trend to better mortality with penicillin administration. Leptospirosis is occurring in an older population, with a higher number of oliguria and lung manifestations. However, mortality is decreasing and can be the result of changes in treatment.

Asunto(s)

Enfermedades Endémicas/prevención & control , Educación del Paciente como Asunto/métodos , Enfermedad de Weil/epidemiología , Enfermedad de Weil/prevención & control , Adulto , Brasil/epidemiología , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Enfermedad de Weil/sangre , Enfermedad de Weil/mortalidad , Adulto Joven

RESUMEN

OBJECTIVE: Impaired sleep has potential health consequences in chronic hemodialysis patients. To date, this issue has not been examined in studies involving a large number of subjects. This study aimed to identify factors associated with poor sleep quality and excessive day-time sleepiness (EDS) in dialysis patients. MATERIAL AND METHODS: This cross-sectional observational study involved 400 patients (59% male) from three hemodialysis centers (SD-HEMOFOR). Quality of sleep was evaluated by the Pittsburgh Sleep Quality Index (PSQI), EDS by the Epworth Sleepiness Scale (ESS), risk of obstructive sleep apnea (OSA) by the Berlin questionnaire and comorbidity severity by the Charlson Comorbidity Index (CCI). RESULTS: Poor sleep quality (PSQI >5) was found in 227 individuals (57%) and was associated with older age (p = 0.001), diabetes (p = 0.03), heart failure (p < 0.005), hypoalbuminemia (p = 0.01), low transferrin saturation (TSAT) (p = 0.009), higher CCI score (p = 0.01) and depression (p < 0.005). Independent factors were older age, heart failure, low TSAT and depressive symptoms. Day-time somnolence was present in 108 patients (27%) and was independently associated with stroke [odds ratio (OR) = 2.84, CI 1.03-7.76), lower hemoglobin concentration (OR = 2.45, CI 0.95-3.03) and high risk of OSA (OR = 1.65, CI 1.03-2.63). High risk of OSA (n = 120; 30%), was associated with hypertension (p < 0.001), overweight/obesity (p = 0.001), older age (p = 0.003) and symptoms of depression (p = 0.01). CONCLUSIONS: Poor sleep quality and EDS were prevalent on chronic hemodialysis. Heart failure, low TSAT and depressive symptoms were independently associated with poor sleep quality. Stroke, anemia and high risk of OSA were independently associated with EDS. These results provide new insight into possible treatment strategies.

Asunto(s)

Diálisis Renal/efectos adversos , Trastornos del Sueño-Vigilia/etiología , Adulto , Anciano , Anciano de 80 o más Años , Estudios Transversales , Femenino , Humanos , Fallo Renal Crónico/terapia , Masculino , Persona de Mediana Edad , Prevalencia , Trastornos del Sueño-Vigilia/epidemiología , Adulto Joven

RESUMEN

AIM: Acute kidney injury (AKI) is a common complication in leptospirosis. The aim of this study is to investigate the association between RIFLE and AKIN classifications with mortality in leptospirosis-associated AKI. METHODS: A retrospective study was conducted in patients with leptospirosis admitted to tertiary hospitals in Brazil. The association between RIFLE and AKIN classifications with mortality was investigated. Univariate and multivariate analysis was performed to investigate risk factors for death. RESULTS: A total of 287 patients were included, with an average age of 37 ± 16 years, and 80.8% were male. Overall mortality was 13%. There was a significant association between these classifications and death. Among non-survivors, 86% were in the class 'failure' and AKIN 3. Increased mortality was observed according to the worse classifications: 'risk' (R; 2%), 'injury' (I; 8%) and 'failure' (F; 23%), as well as in AKIN 1 (2%), AKIN 2 (8%) and AKIN 3 (23%) (P < 0.0001). The worst classifications were significantly associated with death: RIFLE F (odds ratio = 11.6, P = 0.018) and AKIN 3 (odds ratio = 12.8, P = 0.013). Receiver-operator curve for patients with AKI showed high areas under the curve (0.71, 95% confidence interval = 0.67-0.74) for both RIFLE and AKIN classifications in determining the sensitivity for mortality. CONCLUSION: There is a significant association between RIFLE and AKIN classifications with mortality in patients with leptospirosis. Initiation of dialysis in patients with RIFLE F and AKIN 3 should always be considered.

Asunto(s)

Lesión Renal Aguda/clasificación , Lesión Renal Aguda/mortalidad , Indicadores de Salud , Leptospirosis/mortalidad , Lesión Renal Aguda/microbiología , Lesión Renal Aguda/terapia , Adulto , Análisis de Varianza , Antibacterianos/uso terapéutico , Brasil , Femenino , Humanos , Leptospirosis/complicaciones , Leptospirosis/microbiología , Leptospirosis/terapia , Modelos Logísticos , Masculino , Persona de Mediana Edad , Oportunidad Relativa , Valor Predictivo de las Pruebas , Curva ROC , Diálisis Renal , Estudios Retrospectivos , Medición de Riesgo , Factores de Riesgo , Índice de Severidad de la Enfermedad , Resultado del Tratamiento , Adulto Joven

RESUMEN

We assessed the antimicrobial resistance patterns of all urine samples submitted for culture from outpatient women aged ≥14 years with diagnosis of uncomplicated cystitis over a 24-month period (2007-2009) in the city of Fortaleza, Brazil. Only bacterial growth of a single uropathogen with ≥10(5) CFU/mL was considered for analysis. The Pearson's chi-square test was used for bivariate correlations. Escherichia coli presented the highest prevalence (64.7%). Coagulase-negative staphylococcus was more common in younger than in older women (P = 0.003). Gentamicin presented the lowest overall resistance pattern (3.5% resistant), followed by ceftriaxone (5%) and norfloxacin (7.5%). Ampicillin and trimethoprim-sulfamethoxazole were the least active agents with 63.7% and 39.8% of resistance, respectively. The resistant rate to trimethoprim-sulfamethoxazole was significantly higher among E. coli than non-E. coli isolated. Among ciprofloxacin-resistant E. coli strains, only 3.4% were resistant to nitrofurantoin. We conclude that trimethoprim-sulfamethoxazole follows a worldwide tendency of antimicrobial increasing resistance and it should be avoided as first-line empirical treatment for urinary tract infections.

Asunto(s)

Cistitis/tratamiento farmacológico , Cistitis/microbiología , Infecciones Urinarias/tratamiento farmacológico , Infecciones Urinarias/microbiología , Enfermedad Aguda , Adolescente , Adulto , Farmacorresistencia Bacteriana , Femenino , Humanos , Pruebas de Sensibilidad Microbiana , Persona de Mediana Edad , Atención Primaria de Salud , Estudios Retrospectivos , Adulto Joven

RESUMEN

BACKGROUND: Acute kidney injury (AKI) is an uncommon but serious complication after trauma. The objective of this study was to evaluate the prevalence, clinical characteristics and outcome of AKI after trauma. PATIENTS AND METHODS: This was a retrospective study performed from January 2006 to January 2008 in an emergency specialized hospital in Fortaleza city, northeast of Brazil. All patients with AKI admitted in the study period were included. Prevalence of AKI, clinical characteristics and outcome were investigated. RESULTS: Of the 129 patients admitted to the intensive care unit (ICU), 52 had AKI. The mean age was 30.1 ± 19.2 years, and 79.8% were males. The main causes of AKI were sepsis in 27 cases (52%) and hypotension in 18 (34%). Oliguria was observed in 33 cases (63%). Dialysis was required for 19 patients (36.5%). Independent risk factors associated with AKI were abdominal trauma [odds ratio (OR) = 3.66, P = 0.027] and use of furosemide (OR = 4.10, P = 0.026). Patients were classified according to RIFLE criteria as Risk in 12 cases (23%), Injury in 13 (25%), Failure in 24 (46%), Loss in 1 (2%) and End-stage in 2 (4%). Overall in-hospital mortality was 95.3%. The main cause of death was sepsis (24%). Mortality was 100% among patients with AKI. CONCLUSIONS: AKI is a fatal complication after trauma, which presented with a high mortality in the studied population. A better comprehension of factors associated with death in trauma-associated AKI is important, and more effective measures of prevention and treatment of AKI in this population are urgently needed.

RESUMEN

BACKGROUND: Acute kidney injury (AKI) occurs in 10 to 60% of patients with leptospirosis. The aim of this study is to investigate markers for oliguric AKI in leptospirosis. METHODS: A retrospective study was performed with 196 consecutive patients with leptospirosis-associated AKI. These patients were categorized into either oliguric or non-oliguric according to their urine output. Clinical and laboratory characteristics were compared between the two groups. RESULTS: Among these patients, 64 (32.6%) were oliguric and 132 (67.4%) nonoliguric. Markers for oliguria were age higher than 40 years (OR = 1.02, p = 0.04), hyponatremia (OR = 0.94, p = 0.03), elevated serum creatinine (OR = 1.11, p = 0.04), low arterial pH (OR = 1.0002, p = 0.01), high levels of AST (OR = 1.005, p = 0.01), crackles (OR = 3.83, p < 0.001) and direct bilirubin (OR = 1.03, p = 0.03). Elevated activated prothrombin time (OR = 0.97, p = 0.03) was a factor associated with nonoliguric AKI. Independent markers for oliguria were crackles (OR = 5.17, p = 0.0016) and direct bilirubin levels (OR = 1.051, p = 0.04). Mortality was significantly higher in oliguric than nonoliguric (27 vs. 8%, p < 0.001). Renal function at discharge was similar in oliguric and nonoliguric patients. CONCLUSION: Age higher than 40 years, hyponatremia, elevated serum creatinine, low arterial pH, high levels of AST, crackles and direct bilirubin levels would be useful to early identify patients with oliguric AKI in leptospirosis.

Asunto(s)

Lesión Renal Aguda/etiología , Leptospirosis/complicaciones , Oliguria/etiología , Lesión Renal Aguda/sangre , Lesión Renal Aguda/epidemiología , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Animales , Antibacterianos/uso terapéutico , Biomarcadores , Presión Sanguínea , Brasil/epidemiología , Niño , Femenino , Humanos , Tiempo de Internación/estadística & datos numéricos , Leptospirosis/tratamiento farmacológico , Masculino , Persona de Mediana Edad , Oliguria/sangre , Penicilinas/uso terapéutico , Valor Predictivo de las Pruebas , Ratas , Estudios Retrospectivos , Adulto Joven , Zoonosis

RESUMEN

BACKGROUND: Acute kidney injury (AKI) is a common complication in many infectious diseases. There are few studies to investigate risk factors for death in infectious diseases-associated AKI. METHODS: This is a retrospective study including all patients with acute kidney injury (AKI) admitted to an infectious diseases intensive care unit (ICU) in Brazil between October 2003 and September 2006. RESULTS: A total of 722 patients were admitted to the infectious disease ICU in the study period. AKI occurred in 147 cases (17.7%). The mean age was 45 +/- 5.6 years, and 77% were male. The mean length of hospital stay was 11.5 +/- 10.3 days. The main causes of ICU hospitalization were acquired immunodeficiency syndrome (AIDS)-related diseases (28 .6%), pneumonia 13%), leptospirosis (11.6%), meningitis (8.2%), disseminated histoplasmosis (6.8%) and tetanus (5.4%). The main cause of AKI was sepsis (41.5%). Patients were classified according to RIFLE as "Risk" (5.6%), "Injury" (21.7%) and "Failure" (72.7%). Patients in "Failure" showed a higher mortality (p = 0.007). Multivariate analysis showed that dependent risk factors for death were oliguria (OR = 5.59, P = 0.002), metabolic acidosis (OR = 5.13, P = 0.01), sepsis (OR = 4.79, P = 0.001), hypovolaemia (OR = 4.11, P = 0.01), use of vasoactive drugs (OR = 3.34, P = 0.02), use of mechanical ventilation (OR = 2.94, P = 0.03) and high APACHE II score (OR = 1.14, P = 0.001). CONCLUSION: There are important risk factors for death among critically ill patients with infectious diseases associated with AKI.

Asunto(s)

Lesión Renal Aguda/mortalidad , Enfermedades Transmisibles/complicaciones , APACHE , Lesión Renal Aguda/etiología , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Unidades de Cuidados Intensivos , Tiempo de Internación , Masculino , Persona de Mediana Edad , Pronóstico , Factores de Riesgo

RESUMEN

BACKGROUND: Results from a number of studies suggest that the delayed manifestation of acute kidney injury (AKI) is associated with higher in-hospital mortality, while other studies were unable to demonstrate any difference among early and delayed AKI in terms of in-hospital mortality. OBJECTIVE: The aim of this study was to investigate differences in outcome among patients with AKI upon admission to an intensive care unit (ICU) and those who develop AKI post-admission. METHODS: We studied patients with AKI secondary to infectious diseases admitted to the ICU. We retrospectively compared data on patients admitted with AKI (early AKI) with data on those who developed AKI 24 h after admission (delayed AKI). RESULTS: Acute kidney injury occurred in 147 of 829 (17.7%) patients admitted to the ICU. Of these, 96 (65%) had early AKI and 51 (35%) had delayed AKI. Renal failure was classified according to RIFLE criteria-an AKI-specific severity score that is used to place patients into one of five categories: risk, injury, failure, loss or end-stage renal disease. Based on these criteria, 6% of the early AKI and 4% of the delayed AKI patients were in risk category, 18% of the early AKI and 27% of the delayed AKI patients were in the injury category and 76% of the early AKI and 69% of the delayed AKI patients were in the failure category. We found no significant association between RIFLE and death. On admission, patients with early AKI had statistically significantly higher serum urea and creatinine levels than delayed AKI patients (P<0.0001). Arterial bicarbonate was lower in early AKI (P=0.02). Sepsis, hypotension and use of mechanical ventilation were more frequent in delayed AKI (P<0.05). The APACHE II score was higher in early AKI (P=0.05) patients. In total, 98 (66.7%) patients died, with a tendency towards higher mortality in patients with delayed AKI (61.5 vs. 76.5%, P=0.07). CONCLUSION: Mortality among patients with infectious diseases-associated AKI admitted to the ICU is high, with a trend to be higher in those who developed delayed AKI.

Asunto(s)

Lesión Renal Aguda/etiología , Enfermedades Transmisibles/complicaciones , APACHE , Lesión Renal Aguda/mortalidad , Lesión Renal Aguda/terapia , Adulto , Brasil/epidemiología , Distribución de Chi-Cuadrado , Enfermedades Transmisibles/epidemiología , Enfermedades Transmisibles/terapia , Femenino , Historia del Siglo XVII , Mortalidad Hospitalaria , Humanos , Incidencia , Unidades de Cuidados Intensivos , Modelos Logísticos , Masculino , Estudios Retrospectivos , Resultado del Tratamiento

RESUMEN

OBJECTIVES: To identify the main clinical and laboratory features of disseminated histoplasmosis (DH) in human immunodeficiency virus (HIV) patients and compare them with those of HIV patients with other opportunistic diseases. METHODS: Retrospective study of HIV patients comparing the clinical and laboratory data of patients with and without DH. Univariate and multivariate analyses were performed to verify the risk factors related to DH. RESULTS: In total, 378 HIV patients were included, 164 with DH and 214 with other opportunistic diseases. Acute renal failure, respiratory insufficiency and septic shock were more frequent in DH patients, who also had a higher mortality (32%vs. 14%, P < 0.001). Independent risk factors for DH were: acute renal failure [odds ratio (OR) 5.2; 95% confidence interval (CI) 3.2-8.5; P < 0.001], splenomegaly (OR 3.4; 95% CI 1.19-9.9; P < 0.001), respiratory insufficiency (OR 2.7 95% CI 1.5-5.0; P < 0.001), proteinuria (OR 2.7; 95% CI 1.3-5.2; P = 0.03), hypotension (OR 2.5; 95% CI 1.2-5.0; P = 0.008), hepatomegaly (OR 2.4; 95% CI 1.2-4.8; P = 0.01), cutaneous lesions (OR, 1.9; 95% CI 1.0-3.3; P = 0.02) and weight loss (OR 1.8; 95% CI 1.0-3.1; P = 0.03). CONCLUSION: Our results suggest that DH is a severe opportunistic disease with high mortality rate, which should be promptly recognized in order to provide early specific treatment.

Asunto(s)

Infecciones Oportunistas Relacionadas con el SIDA/diagnóstico , Histoplasmosis/diagnóstico , Infecciones Oportunistas Relacionadas con el SIDA/epidemiología , Lesión Renal Aguda/virología , Adulto , Terapia Antirretroviral Altamente Activa , Brasil/epidemiología , Femenino , Histoplasma , Histoplasmosis/epidemiología , Humanos , Masculino , Prevalencia , Estudios Retrospectivos