Publications by authors named "Tomas Toporcer"

Background: Ischemic-reperfusion damage of cardiomyocytes due to myocardial infarction (MI) often leads to the death of an individual. Premenopausal women have been observed to have a significantly lower risk of cardiovascular disease (CVD) than men of the same age. In menopausal women, this trend is significantly reversed, and the risk of CVD increases up to 10-fold.

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Article Synopsis
  • The study aimed to compare two techniques for valve-sparing root replacement in patients with aortic root aneurysm: aortic root remodelling and aortic valve reimplantation, utilizing a multicenter approach and propensity-score matching.* -
  • Researchers conducted a retrospective analysis of data from 2010 to 2021, selecting pairs of patients who underwent either technique to evaluate perioperative outcomes and long-term valve function.* -
  • Findings indicated that while there were no significant differences in short-term outcomes, patients who underwent remodelling faced a higher risk of needing further interventions compared to those who had reimplantation, especially if immediate postoperative valve function was suboptimal.*
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Coronary artery anomalies are seen in less than 1% of the general population and in 1.6% of cardiac catheterization cases. The anomalous origin of the coronary artery from the pulmonary artery is one of four groups of coronary artery origin anomalies.

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Computed tomography 3D reconstruction of a patient with Bland-White-Garland syndrome showing a dilated right coronary artery and thin left coronary artery.

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Acute myocardial infarction (MI) is the leading cause of mortality worldwide with premenopausal women showing a lower incidence of cardiovascular disease compared with men of the same age. After menopause, this advantage disappears, suggesting that sex hormones play a cardioprotective role. This study was aimed to assess on the activity of antioxidant enzymes in plasma and the respiratory function of isolated heart mitochondria after the induction of MI in rats after ovariectomy and estradiol benzoate supplementation.

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Non-iatrogenic left atrial wall dissection is a rare lesion defined as a gap from the mitral valve annulus to the interatrial septum or wall of the left atrium. We report the case of a 57-year-old man with symptoms of acute cardiac and renal failure. Trans-esophageal echocardiography and computed tomography showed significant mitral valve regurgitation and dissection of the posterior wall of the left atrium.

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Backround: The right aortic arch and aortic coarctation are rare congenital anomalies with the incidence of 0.1% and 0.03-0.

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Background: The unicuspid aortic valve (UAV) is a well-described pediatric congenital abnormality, with incidence of 0.02% in the general population. Bicuspidization has been described as a potential surgical option to repair this defect.

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Klippel-Feil syndrome has been associated with cardiovascular malformations, but only 3 cases have been reported to be associated with aortic coarctation and surgical management is not defined. A 51-year old woman with Klippel-Feil syndrome associated with an aneurysm of the ascending aorta, hypoplastic aortic arch and aortic coarctation at the level of the left subclavian artery presented with shortness of breath 2 years after diagnosis. Imaging identified interim development of a 7.

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Background: Mesenchymal stromal cells (MSCs) in the pancreatic microenvironment can improve diabetes mellitus (DM). The aim of the present study was to determine whether different pancreatic microenvironments influence the improvement of hyperglycemia and insulin deficiency.

Methods: MSCs isolated from rat bone marrow were transplanted directly into different pancreatic microenvironments in male DM rats.

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Background And Objective: Despite numerous hypotheses regarding the action of laser light, the use of low-level laser therapy (LLLT) in ischemic reperfusion (I/R) injury is still being verified. The present study investigates the effects of low-level laser irradiation (LLLI) on I/R injury of the musculus gracilis in rats.

Materials And Methods: I/R injury of the musculus gracilis flap was induced in male adult Sprague-Dawley rats (n = 84).

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The effect of Atropa belladonna L. (AB) aqueous extract on skin wound healing was studied in male Sprague-Dawley rats subjected to two parallel full-thickness skin incisions on the back. Specimens for histological evaluation were collected on days 2 and 5 whereas for biomechanical testing, they were collected on day 5.

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Background: The most effective method of increasing the level of estrogen in the wounds of post-menopausal women undergoing routine surgical procedures is by long-term preoperative administration. However, in the case of acute surgery or trauma, the most effective method of increasing the level of estrogen is administration immediately pre- or postsurgery. This study, therefore, was aimed at assessing the effect of postsurgical administration of estradiol benzoate on wound healing in ovariectomized (OVX) Sprague Dawley rats.

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Objective: The purpose of this study was to evaluate, from the histological point of view, the effect of diode laser irradiation on skin wound healing in Sprague-Dawley rats.

Background Data: Various biological effects have been described in different studies after low-level laser therapy (LLLT).

Methods: Two parallel full-thickness skin incisions were performed on the back of each rat (n = 49) and immediately sutured.

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