Serum concentration of visfatin in obese women

The aim of the present study was to determine serum concentrations of visfatin in obese women in comparison to normal-weight controls. Study subjects were 21 obese women without additional disease (age, 29.0+/-4.9 years; body mass index, 37.1+/-6.1 kg/m2) and 16 healthy, normal-weight women (age, 29.9+/-5.4 years; body mass index, 22.5+/-1.7 kg/m2). Body composition was measured by bioimpedance. Serum concentrations of visfatin were assayed with an enzyme-linked immunosorbent assay kit (Phoenix Pharmaceuticals, Burlingame, CA). Insulin was determined by radioimmunoassay and glucose by colorimetric method. Serum concentration of visfatin was significantly higher in obese women when compared to controls. Positive correlations between serum concentrations of visfatin and insulin in the obese group were found. In the control group, we observed positive correlations between serum concentrations of visfatin and glucose. In conclusion, the observed increase of visfatin in obesity may be a counterregulation preventing further glucose increase.     

Coronary venoplasty during the implantation of the cardiac resynchronisation device--a case report

We describe a case of a 76-year-old patient with advanced block in the His-Purkjnie system, who underwent implantation of a cardioverter-defibrillator with cardiac resynchronisation therapy. Complete heart block occurred during the insertion of the coronary sinus cathether. The implantation of the left ventricular (LV) lead was impossible due to difficult anatomy of the coronary venous system. The right ventricular pacing caused the further prolongation of the QRS duration and exacerbation of heart failure symptoms. Thus, the LV lead was successfully implanted during the second procedure after the balloon venoplasty of the lateral cardiac vein. The biventricular pacing was successful during 4 months follow-up.     

Relationship between blood glucose on admission and prognosis in patients with acute myocardial infarction treated with percutaneous coronary intervention

BACKGROUND: Diabetes mellitus in patients with myocardial infarction affects in-hospital and late mortality. It has been shown that the glucose level on admission can also affect prognosis. This conclusion was based on an analysis performed on a heterogeneous group of patients, treated not only with percutaneous coronary intervention (PCI) but also with fibrinolysis. Moreover, the threshold values hyperglycaemia for the diagnosis of were also variable. AIM: To assess whether glucose level on admission affects in-hospital and one-year prognosis in patients with ST-segment elevation myocardial infarction (STEMI) treated with PCI. METHODS: Consecutive patients with STEMI treated with PCI were included in the analysis. Patients with STEMI complicated by cardiogenic shock were also included. Three groups according to the glucose level on admission were analysed: group I - <7.8 mmol/l (140 mg/dl), group II - 7.8-11.1 mmol/l (140-200 mg/dl), and group III - > or = 11.1 mmol/l (200 mg/dl). RESULTS: The incidence of diabetes mellitus in the total group (1027 patients) was 26.1%, and of cardiogenic shock - 9.2%. Group I consisted of 472 patients, group II - 307 patients, and group III - 248 patients. Compared with normoglycaemic patients, those with elevated glucose level were older, more often female, had more often hypertension, diabetes mellitus, cardiogenic shock, were more often treated with fibrinolysis before PCI but were less often smokers. Multivessel disease and initial patency of the infarct-related artery (TIMI 0-1) were more often observed in patients with higher glucose level. A trend towards a higher incidence of reocclusion was also more often present in patients with increased glucose level. Moreover, mean creatine kinase concentration was the highest and the left ventricular ejection fraction was the lowest in group III. During the in-hospital stay, the complication rate was as follows: stroke (1.1% vs. 1.3% vs. 4.4%), and mortality (2.8 vs. 4.9 vs. 13.3%) in groups I, II, and III, respectively. The same tendency was observed during the one-year follow-up period: stroke (1.3 vs. 2.9 vs. 6.9%), mortality (6.4 vs. 9.1 vs. 22.6%). The 1 mmol/l (18 mg/dl) increase of the baseline glucose level among various risk factors was an independent prognostic factor of higher -year mortality (HR=1.06; 95% CI 1.02-1.09). Diabetes mellitus did not affect prognosis among patients included in the analysis. CONCLUSION: Elevated glucose level on admission is associated with adverse prognosis in patients with STEMI treated with PCI.     

Pulmonary thromboembolism in 102 consecutive patients with chronic atrial fibrillation. Diagnostic value of echocardiography

BACKGROUND: Little is known about the incidence and diagnosis of pulmonary thromboembolism (PE) in patients with chronic permanent atrial fibrillation (CAF). Also it has not been established if echocardiography, a diagnostic tool useful in clinical evaluation of both diseases, is of value in diagnosis of PE in CAF patients. AIM: To establish the prevalence of PE among patients suffering from CAF without or with poorly controlled anticoagulation as well as to evaluate the possibility to detect PE and to assess the diagnostic role of echocardiography. METHODS: Prevalence of PE in a population of 102 patients (52 males and 50 females at the mean age of 68 years, range 32-88 years) admitted to hospital between January and December 2004 with diagnosis of CAF was studied retrospectively. Echocardiography-based original algorithm of PE diagnosis in such patients was analysed. RESULTS: Among 102 patients with CAF, 20 (19%) cases of PE were diagnosed, including 12 with acute PE (APE) and 8 suffering from chronic thromboembolic pulmonary hypertension (CTEPH). Patients with CAF and APE as well as with CAF and CTEPH had increased right ventricular dimension (p=0.0002 and p=0.001, respectively), higher tricuspid pressure gradient (p=0.005 and p=0.001, respectively) and shorter pulmonary artery acceleration time (p=0.00006 and p=0.0004, respectively) estimated in echocardiography as compared to patients with CAF but without PE. Subjects with CAF and PE had also significantly decreased left ventricular dimension and better left ventricular performance. CONCLUSIONS: A relatively high incidence of PE among patients with CAF not treated with anticoagulants or with poorly controlled anticoagulation therapy was noted. The important value of a diagnostic algorithm employing echocardiography in a diagnosis of clinically significant APE and CTEPH in this group of patients was also shown.     

Coronary artery bypass grafting in a patient after percutaneous left main angioplasty with DES stent implantation

We present surgical treatment of acute coronary syndrome due to the left main stenosis in a patient in whom 6 months earlier percutaneous left main angioplasty with DES-stent implantation was performed. We discuss indications for percutaneous angioplasty and for coronary artery bypass grafting in patients with left main stenosis.