Jerzy Krzysztof Wranicz

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BACKGROUND Deceleration capacity (DC) is a novel electrocardiography (ECG) parameter characterizing the overall capacity of slowing down the heart rate. The aim of this study was to evaluate clinical and ECG covariates of DC in patients with the first episode of ST-segment elevation myocardial infarction (STEMI) treated with primary angioplasty. METHODS(More)
BACKGROUND Obesity has been shown to affect heart rate variability (HRV). Adipokines (hormone-like peptides secreted by adipose tissue) display several bioactivities and have an impact on the cardiovascular system. The aim of the study was to evaluate the impact of obesity (BMI > or = 30) and adipokines (leptin, adiponectin and resistin) on HRV. METHODS(More)
INTRODUCTION There is no consensus on the length of ECG tracing that should be recorded to represent adequate rate control in patients with atrial fibrillation (AFib). The purpose of the study was to examine whether heart rate measurements based on short-term ECGs recorded at different periods of the day may correspond to the mean heart rate and rate(More)
BACKGROUND The aim of the study was to explore the relationship between changes in pulse pressure (PP) and frequency domain heart rate variability (HRV) components caused by left ventricular pacing in patients with implanted cardiac resynchronization therapy (CRT). MATERIAL AND METHODS Forty patients (mean age 63±8.5 years) with chronic heart failure (CHF)(More)
Estradiol (E2) is traditionally recognised as the female sex hormone. It has been believed for 40 years, that E2 didn't exert any influence or caused impairment of the gonadal function in men. The main source of E2 in men is adipose tissue and the brain. E2 is also produced in adrenals, liver, mammary glands, hair and in male gonad. Daily production and the(More)
In this study, we present the case of the extraction of a non-functioning, abandoned, chronically implanted nine year-old lead with proximal extended frayed ending, displaced spontaneously into the subclavian vein. The seemingly inaccessible lead was extracted from the body using the femoral approach. The lead was looped with a pig-tail catheter, standard(More)
INTRODUCTION We sought to determine the usefulness of ambulatory 24-hour Holter monitoring in detecting asymptomatic pacemaker (PM) malfunction episodes in patients with dual-chamber pacemakers whose pacing and sensing parameters were proper, as seen in routine post-implantation follow-ups. MATERIAL AND METHODS Ambulatory 24-hour Holter recordings (HM)(More)
The extraction of three implanted (18-, 16-, and ten year-old) damaged nonfunctional leads was complicated by a lead breaking and losing its external silicone tube. The missing part of the lead was invisible on X-ray, but was visible in ECHO as a thin, corded, very mobile limp structure without metallic reflection. Incomplete lead extraction did not cease(More)
The clinical use of implantable cardioverter defibrillators (ICDs) has increased rapidly since the results of several randomized trials confirmed the efficacy of ICDs in the secondary and primary prevention of sudden cardiac death [1]. The more complex devices are leading to a rapidly increasing workload for the follow-up of these patients in specialized(More)
OBJECTIVES To assess the correlations between blood levels of sex steroid hormones and blood lipid profile or the degree of coronary artery stenosis in men with coronary artery disease (CAD). METHODS 111 men with stable CAD, aged 36-73 yrs, unselected for the coexisting clinical coronary risk factors were prospectively studied. Degree of coronary stenosis(More)
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