ABSTRACT
Actuality. Impaired kidney function adversely influences both immediate and remote prognosis for patients with chronic heart failure (CHF). However, early detection and prediction of acute kidney injury (AKI) are understudied.The aim of study was to investigate hypoxia-inducible factor 1 (HIF-1) as a biomarker for early diagnosis of AKI and determining prognosis in patients with acute decompensated CHF (ADCHF). MATERIALS AND METHODS: 84 patients admitted for ADCHF (18 women; mean age, 61.4±7.1) were evaluated. ADCHF was diagnosed in accordance with SEHF guidelines for diagnosis and treatment of chronic heart failure (RCS, 2016). AKI was diagnosed according to KDIGO criteria (2012). HIF-1, N-terminal pro B-type natriuretic peptide (NТ-proBNP), and erythropoietin were measured in blood serum. The follow-up period lasted for 12 months. RESULTS: AKI was diagnosed in 27 (32.1 %) patients. Level of HIF-1 was 1.27±0.63 ng / ml; NТ-proBNP - 2469.6 (interquartile range (IQR), 1312.2; 3300.0) pg / ml; eryhthropoietin - 56.0 mIU / ml (IQR, 13.2; 68.1). No correlation was found between HIF-1 and glomerular filtration rate, NТ-proBNP, or erythropoietin. Differences in biomarker levels were not observed between patients with and without AKI; however, HIF-1 was higher in the group of deceased patients than in the group of survived patients (1.64±0.9 vs. 1.17±0.44 ng / ml, Ñ=0.004), which was not observed for NТ-proBNP and erythropoietin. CONCLUSION: AKI was observed in every third patient with ADCHF. In ADCHF, HIF-1 was not correlated with the kidney function; however, a relationship was found between the HIF-1 level and prediction for patients with CHF.
Subject(s)
Acute Kidney Injury , Heart Failure , Aged , Biomarkers , Female , Glomerular Filtration Rate , Humans , Hypoxia-Inducible Factor 1 , Male , Middle Aged , Natriuretic Peptide, Brain , Peptide Fragments , PrognosisABSTRACT
AIM: To estimate the frequency and severity of acute kidney injury (AKI) in patients with ST-segment elevation acute myocardial infarction (STSEAMI), to specify whether the changes in diuresis and serum creatinine levels are equally sensitive diagnostic criteria for AKI, and to define their prognostic value. SUBJECTS AND METHODS: Three hundred and nineteen patients (249 (78%) men and 70 (22%) women; age 58 +/- 10 years) with STSEAMI who received thrombolytic therapy (TLT) were examined. The diagnosis of STSEAMI, indications for and contraindications to TLT, evaluation of its efficiency were made in accordance with the All-Russian Scientific Society of Cardiology guidelines (2007). AKI was diagnosed and classified using the KDIGO guidelines (2012). RESULTS: AKI was diagnosed in terms of diuresis, calculated creatinine levels, and creatinine level changes in 107 (34%), 73 (23%), and 68 (22%) patients, respectively. Among the patients with AKI diagnosed in view of diuresis, in-hospital death rates were higher than in those without AKI (chi2 = 25.46; p < 0.001); the similar pattern was seen in patients with AKI diagnosed in terms of calculated creatinine levels (chi2 = 3.99; p = 0.045). Logistic regression analysis indicated that regardless of gender, age, and time interval between onset of clinical manifestation and hospital admission, the in-hospital death rates were associated with the presence of AKI in view of diuresis (relative risk 14; 95% confidence interval, 4.03 to 52.08; p < 0.001). CONCLUSION: The STSEAMI patents receiving TLT exhibited a high rate of AKI. The major problem in the early detection of AKI is associated with difficulties in the differential diagnosis of AKI and chronic kidney disease. AKI diagnosed in view of diuresis is of greater prognostic value for in-hospital mortality than that diagnosed in terms of creatinine levels. The diagnosis of renal dysfunction in view of basal creatinine levels is prognostically important despite the fact that this cannot differentiate AKI from chronic kidney disease in the early stage.
Subject(s)
Acute Kidney Injury/diagnosis , Fibrinolytic Agents/therapeutic use , Myocardial Infarction/complications , Acute Kidney Injury/epidemiology , Acute Kidney Injury/etiology , Creatinine/blood , Diagnosis, Differential , Diuresis/drug effects , Diuresis/physiology , Electrocardiography , Female , Fibrinolytic Agents/administration & dosage , Fibrinolytic Agents/adverse effects , Humans , Logistic Models , Male , Middle Aged , Myocardial Infarction/diagnosis , Myocardial Infarction/drug therapy , Predictive Value of Tests , Severity of Illness IndexABSTRACT
AIM OF THE STUDY: To evaluate clinical features of chronic cardiac insufficiency (CCI) in elderly patients with renal dysfunction. MATERIALS AND METHODS: 260 patents (143 men and 117 women) aged above 60 (mean 68.7 +/- 6.6) yr with I-IV FC CCI. 25 patients had hypertensive disease (HD), 30 coronary heart disease (CHD), 205 HD+CHD. Glomerular filtration rate (GFR) was estimated using MDRD formula. RESULTS: Chronic renal disease (CRD) with GFR reduced below 60 ml/min/1.73 m2 was diagnosed in 126 (48.5%) patients. Its severity was not significantly different between patients with and without CCI. (2.3 +/- 0.7 and 2.1 +/- 0.7 respectively, p = 0.13). The entire study group was dominated by men, the CCI group by women. Atrial fibrillation (AF) was diagnosed in 25.8% of the patients with CI + CRD. Multivariate regression analysis revealed independent correlation of AF with CCI FC (p = 0.02) and GFR (p = 0.2). CCI patients with CRD had higher frequency of mitral regurgitation (MR) than without CRD. Occurrence of MR correlated with age (p < 0.001) and GFR (p < 0.001). CONCLUSION: 1. Renal dysfunction occurred in 48.55% of elderly patients with CCI. 2. A distinctive clinical feature of CCI + CRD in elderly patients is frequent development of AF and MR. 3. CCI + CRD is more frequent in women and CCI without CRD in men.