BACKGROUND: Acute decompensated heart failure (ADHF) is one of the leading causes of mortality, highlighting the importance of early identification of high-risk patients. The fibrosis-5 (FIB-5) index, traditionally used to evaluate hepatic fibrosis, may hold prognostic value in ADHF patients by reflecting systemic congestion, inflammation, and organ dysfunction. The hypothesis of this study is that the FIB-5 index is an independent predictor of 1-month mortality in patients with ADHF. METHODS: This retrospective study included 155 patients diagnosed with ADHF between 2020 and 2024. Patients were divided into two groups based on their left ventricular ejection fraction (LVEF ≤ 40% or LVEF > 50%). Survival was monitored for one month, and clinical, biochemical, and echocardiographic parameters were compared between survivors and death. Logistic regression and receiver operating characteristic curve analyses were performed to assess the prognostic value of the FIB-5 index. RESULTS: During the 1-month follow-up, 66 patients (42.6%) died. The mean FIB-5 index was significantly lower in non-survivors (-10.46 ± 6.93) compared to survivors (-8.10 ± 6.67) (P = 0.03). Multivariate regression analysis identified the FIB-5 index as an independent predictor of 1-month mortality (OR = 1.089, 95% CI: 1.022-1.160, P = 0.009). The receiver operating characteristic curve analysis demonstrated an area under the curve of 0.609 (95% CI: 0.51-0.699) with sensitivity of 59.6% and specificity of 63.4%. Kaplan-Meier survival analysis revealed significantly higher mortality rates among patients with lower FIB-5 values (log-rank: 7.887, P = 0.005). CONCLUSIONS The FIB-5 index is an independent predictor of 1-month mortality in ADHF patients. Its low cost, non-invasive nature, and ability to reflect systemic inflammation and congestion make it a promising tool for risk stratification. Prospective studies are needed to validate its utility in clinical practice and evaluate its role in guiding therapeutic decisions.

BACKGROUND/AIMS: Poor sleep quality (SQ) is associated with increased cardiovascular mortality and morbidity. Additionally, asymmetric dimethylarginine (ADMA) is an independent predictor of cardiovascular mortality and morbidity. However, no sufficient data regarding the relationship between ADMA levels and SQ have been reported. The goal of the current study was to evaluate the association between SQ and ADMA levels in normotensive patients with type 2 diabetes mellitus. METHODS: The study participants consisted of 78 normotensive type 2 diabetics. The SQ of all participants was assessed using the Pittsburgh Sleep Quality Index (PSQI). Patients with a global PSQI score > 5 were defined as "poor sleepers." Factors associated with poor SQ were analyzed using a multiple regression model. Serum ADMA levels were measured using high performance liquid chromatography. RESULTS: The median ADMA levels of the poor sleepers were increased compared with patients defined as good sleepers (5.5 [4.2 to 6.6] vs. 4.4 [2.9 to 5.4], p < 0.01, respectively). However, the L-arginine/ADMA ratio was decreased in poor sleepers (p < 0.01). Global PSQI scores were positively correlated with ADMA levels (p < 0.01) and negatively correlated with the L-arginine/ADMA ratio (p = 0.02). ADMA levels were correlated with sleep latency (p < 0.01) and sleep efficiency (p = 0.01). Logistic regression analysis showed that ADMA levels (odds ratio [OR], 1.68; 95% confidence interval [CI], 1.16 to 2.44; p = 0.01) and body mass index (OR, 1.15; 95% CI, 1.01 to 1.31; p = 0.04) were associated with poor SQ independently of glomerular filtration rate, sex, age, duration of diabetes, hemoglobin A1c, total cholesterol, and systolic blood pressure. CONCLUSIONS: Self-reported SQ was independently associated with ADMA levels in normotensive patients with diabetes mellitus.
Adult ; Arginine/*analogs & derivatives/blood ; Biomarkers/blood ; Cardiovascular Diseases/blood/*etiology/physiopathology ; Chi-Square Distribution ; Chromatography, High Pressure Liquid ; Cross-Sectional Studies ; Diabetes Mellitus, Type 2/blood/*complications/diagnosis/physiopathology ; Female ; Humans ; Logistic Models ; Male ; Middle Aged ; Odds Ratio ; Risk Factors ; *Sleep ; Sleep Wake Disorders/blood/*complications/diagnosis/physiopathology ; Surveys and Questionnaires