RESUMEN
Acute kidney injury from bilateral renal infiltration is rare in diffuse large B-cell lymphoma (DLBCL). We present the case of a 45-year-old woman with a three-month history of night sweats, weight loss, fever, and fatigue. Clinical evaluation revealed anemia, edema, cervical lymphadenopathy, and elevated blood pressure. Initial lab results indicated severe kidney injury, initially suspected to be chronic kidney disease, later ruled out. Radiological assessments confirmed mediastinal lymphadenopathy. A cervical lymph node biopsy led to a diagnosis of DLBCL. Rituximab, cyclophosphamide, doxorubicin, vincristine, and prednisone chemotherapy improved renal function and hematological parameters. Subsequent staging CT confirmed lymphadenopathy. Close monitoring revealed a complete return to normal renal function after one month. Further follow-up was missed. This case emphasizes diagnostic complexities and the value of a multidisciplinary approach in managing complex clinical presentations.
RESUMEN
Background Hyponatremia, often encountered in hospitalized patients, is associated with adverse outcomes in ischemic stroke patients. In this study, we investigated the frequency of hyponatremia and its impact on prognosis and clinical outcomes in ischemic stroke patients from a tertiary care hospital. Methodology A total of 289 patients admitted to the hospital with ischemic stroke from September 2022 to February 2023 were considered in this cross-sectional study. Serum sodium level was measured on admission, and hyponatremia was defined as sodium less than 135 mmol/L. The primary outcome of the study was assessed by the National Institutes of Health Stroke Scale (NIHSS) score on admission and discharge and inpatient mortality. Data were analyzed using SPSS version 20 (IBM Corp., Armonk, NY, USA), and multivariate logistic regressions were conducted using variables identified as having a relationship with hyponatremia. Results Our study shows that among 289 patients with ischemic stroke, the mean age was 61 ± 8.53 years. Hyponatremia was observed in 101 (35%) patients, and all baseline characteristics and risk factors for stroke were similar between patients with and without hyponatremia. The patients with hyponatremia had higher NIHSS scores on admission (p = 0.041) and at discharge (p = 0.039). In the resultant multivariate analysis, hyponatremia was an independent predictor of mortality rates during the hospital stay. The cumulative incidence rates of in-hospital mortality for hyponatremia and normal sodium level were 16.8% and 10.1%, respectively. Conclusions Hyponatremia is prevalent in ischemic stroke and is independently associated with in-hospital mortality and worse NIHSS scores at admission and discharge.
