Publications by authors named "Robert Blazekovic"

Objective: To compare the intraoperative quality of coronary anastomoses performed with or without cardiopulmonary bypass using transit time flow measurement (TTFM) parameters.

Methods: We collected data from 588 consecutive patients who underwent surgical revascularization. We retrospectively reviewed data from two groups: 411 with cardiopulmonary bypass (CABG group) and 177 off-pump (OPCABG group).

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Takayasu's arteritis (TA) affects the aorta and its branches. Immunosuppressants are the usual course of therapy, while surgery has been used in acute cases. There is only scant information on TA in infancy, and the nonspecific symptoms in the initial stage of the disease make the diagnosis difficult and delayed, thus increasing the mortality rate.

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Alkaptonuria is rare genetic disorder of tyrosine metabolism manifesting with signs of tissue pigmentation, dark urine, and ochronotic arthropathies. Commonly undiscovered by late adulthood, alkaptonuria can manifest as cardiac ochronosis with cardiovascular disorders such as valvulopathies, but rarely coronary artery disease. This case report describes 2 patients with aortic stenosis and coronary artery disease in whom alkaptonuria was diagnosed during open heart surgery.

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Immunoglobulin-G4-related disease (IgG4RD) is a novel clinical entity characterized by lymphoplasmacytic infiltrates presenting as an excessive fibrosis such as retroperitoneal inflammatory pseudotumor but rarely affecting the heart or the aorta. We describe a case of IgG4RD with multifocal aortic involvement presenting as an acute aortic syndrome.

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Multiple studies have demonstrated the association of red cell distribution width (RDW) with the ultrasound parameters of both systolic and diastolic heart dysfunction. We aimed to further investigate the clinical associations of RDW in the setting of ST-elevation myocardial infarction (STEMI) and to comparatively evaluate its predictive properties regarding systolic and diastolic dysfunction.A total of 89 patients with STEMI were prospectively analyzed.

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Libman-Sacks endocarditis, one of the most prevalent cardiac presentations of systemic lupus erythematosus, typically affects the aortic or mitral valve; tricuspid valve involvement is highly unusual. Secondary antiphospholipid syndrome increases the frequency and severity of cardiac valvular disease in systemic lupus erythematosus. We present the case of a 47-year-old woman with lupus and antiphospholipid syndrome whose massive tricuspid regurgitation was caused by Libman-Sacks endocarditis isolated to the tricuspid valve.

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Detection of an intracardiac mass always represents a clinical challenge. We present a 61-year-old female patient with symptoms of New York Heart Association class III. Two-dimensional transthoracic echocardiography revealed a hypoechogenic mass in the cavity of the dilated right ventricle (RV).

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Aim: To evaluate the changes in the expression level of gonadal steroid, insulin, and leptin receptors in the brain of adult Sprague-Dawley female rats due to ovariectomy and/or chronic stress.

Methods: Sixteen-week-old ovariectomized and non-ovariectomized female Sprague-Dawley rats were divided in two groups and exposed to three 10-day-sessions of sham or chronic stress. After the last stress-session the brains were collected and free-floating immunohistochemical staining was performed using androgen (AR), progesterone (PR), estrogen-β (ER-β), insulin (IR-α), and leptin receptor (ObR) antibodies.

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To explore sex differences in cardiovascular function under stress, we analyzed plasma levels of glucose, C-reactive protein (CRP), uric acid and cholesterol in male, female and ovariectomized rats under acute and chronic stress. Glucose tolerance test (GTT) was performed in all rats before any stress was performed, as well as later in the chronic stress experiment. GTT in control animals showed the same trend as in chronically stressed.

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Objectives: Cardiac surgery-associated acute kidney injury (AKI) is a well-known factor influencing patients' long-term morbidity and mortality. Several prediction models of AKI requiring dialysis (AKI-D) have been developed. Only a few direct comparisons of these models have been done.

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Aim: To compare cardiometabolic risk-related biochemical markers and sexual hormone and leptin receptors in the adrenal gland of rat males, non-ovariectomized females (NON-OVX), and ovariectomized females (OVX) under chronic stress.

Methods: Forty six 16-week-old Sprague-Dawley rats were divided into male, NON-OVX, and OVX group and exposed to chronic stress or kept as controls. Weight, glucose tolerance test (GTT), serum concentration of glucose, and cholesterol were measured.

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Dirofilaria immitis is a parasite transmitted by mosquito bites, where the most common primary hosts are dogs, cats and some wild animals. Humans become accidental hosts after being bitten by an infected mosquito and the number of such infections has rapidly increased during the last decade. We present a patient in which a live D.

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Quadricuspid aortic valve is a rare congenital malformation of the aortic valve. Even in the era of a transthoracic and transesophageal ultrasound the occurrence is sometimes missed. Aortic incompetence occurs usually in 5th or 6th decade of life requiring surgical intervention.

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Pulmonary embolism caused by a foreign body is an exceedingly rare event. We report on a 62 year old woman who suffered a gun shot injury to her left knee with concomitant vascular lacerations. The bullet migrated through the venous system into the pulmonary circulation causing a pulmonary embolism.

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