Piotr Grzelak

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The necessity for identification of risk factors for Anterior Cruciate Ligament, ACL injury has challenged many investigators. Many authors have reported lower Notch Width Index, NWI measured on radiographs in patients with midsubstance ACL lesions compared to control groups. Since a narrow intercondylar notch has been implicated as a possible risk factor(More)
BACKGROUND The aim of this prospective cohort study was to evaluate the progression of coronary artery calcification (CAC), and atherosclerosis in hemodialysis (HD) patients and to relate them to novel biomarkers, i.e. serum osteoprotegerin (OPG) and fibroblast growth factor 23 (FGF-23). MATERIAL AND METHODS Forty-seven HD patients were followed up for 30(More)
BACKGROUND At present, endothelial dysfunction is best assessed in vivo with measurement of flow-mediated dilatation (FMD) with Doppler ultrasound scanning. This test, however, does not account for the subject's age and is uncomfortable for patients. The aim of the study was to compare a new test for endothelium function assessment using hand exercise load.(More)
BACKGROUND/AIMS Analysis of cystic fluid may be useful in distinguishing between benign and malignant cysts which has significant impact on their management. The aim of our study was to assess the diagnostic utility of carcinoembryonic antigen (CEA) and K-ras gene mutation in pancreatic cysts fluid. METHODS The study included 56 patients with pancreatic(More)
Congenital anomalies of systemic veins are usually asymptomatic and found incidentally during ultrasonography, computed tomography (CT) or magnetic resonance examinations performed for other clinical indications. Persistent left superior vena cava (PLSVC) with absent right superior vena cava (RSVC) is the congenital aberration in the thoracic venous system(More)
BACKGROUND Sarcoidosis is a multisystemic granulomatous disease of unknown etiology that predominantly affects lungs and intrathoracic lymph nodes; in rare cases (approx. 10%), infiltration of the spleen and liver may be observed. In order to identify hepatosplenic infiltration, MRI/CT of the abdomen and different ultrasound techniques (PD US, US D) are(More)
BACKGROUND The aim of this study was to assess the disturbances in perfusion of transplanted kidneys (KTx) following an acute occlusion of 1 of the supernumerary renal arteries (SRA). We compared the differences in echogenicity and the size of ischemic areas between routine B mode ultrasonography with Doppler evaluation (US-CD) and contrast-enhanced(More)
The causes of metabolic brain changes in patients with anorexia nervosa are still not fully explained. The purpose of this study was to use the 1H-MRS method in investigating metabolic changes in the brain of patients with anorexia nervosa. We studied 10 patients for visible alternations in brain metabolism and compared the results to healthy controls.(More)
AIM Both vascular calcification and atherosclerosis are highly prevalent in patients with end-stage renal disease (ESRD) and have been associated with increased cardiovascular morbidity. Because those two phenomena might be only coincidentally related in chronic haemodialysis (HD) patients, in this study, coronary artery calcification (CAC), common carotid(More)
AIM The objective of this study was to assess the effect of age on vascular reactivity in patients with Type 1 diabetes. METHODS Forty-five patients with Type 1 diabetes and 71 healthy control subjects, divided into three age groups (18-30, 31-45 and 46-60 years old), underwent assessment of vascular reactivity based on ultrasound examination of a(More)