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Browsing by Author "Nikolić, Aleksandra (59432908700)"

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    A misinterpretation of the left ventricular non-compaction-adult patient with primary pulmonary hypertension.
    (2011)
    Nikolić, Aleksandra (59432908700)
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    Jovović, Ljiljana (6602712762)
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    Ristić, Velibor (35491539000)
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    Nikolić, Dejan (7005493858)
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    Angelkov, Lazar (6507353011)
    Non-compaction of the left ventricle is a rare cardiac malformation, defined as a primary cardiomyopathy caused by genetic malformations. Although the pathogenesis of this cardiomyopathy is unknown, there are two possible hypotheses (congenital and acquired) which lead to arrest in intrauterine endomyocardial morphogenesis. We are presenting a case of a 60-year-old woman, with a history of bradyarrhythmia, syncope and cyanosis. Two-dimensional echocardiography showed the thickened myocardium with prominent trabeculations and deep intertrabecular recesses in the two thirds of the apical part of left ventricle walls. The right side cavity was enlarged with hypertrophied wall. Tricuspid regurgitation was moderate. Systolic pressure in the right ventricle was 70mmHg. Catheterization of the right heart showed high pressure in the pulmonary artery. According to publications, this is a very rare case with the presence of possible primary pulmonary hypertension and non-compaction of the left ventricle.
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    Breast cancer and its impact in male transsexuals
    (2018)
    Nikolić, Dejan (7005493858)
    ;
    Granić, Miroslav (56803690200)
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    Ivanović, Nebojša (23097433900)
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    Zdravković, Darko (23501022600)
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    Nikolić, Aleksandra (59432908700)
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    Stanimirović, Violeta (6603196190)
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    Zdravković, Marija (24924016800)
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    Dikić, Srdjan (6508063280)
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    Nikolić, Marko (57194492382)
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    Djordjević, Miroslav (7102319341)
    Introduction: Lesbian, gay, and bisexuals have unique healthcare needs. Breast cancer is leading cancer in women, worldwide, accounting for 25% of all cases. Annual incidence rates increased significantly in all countries and age groups. The occurrence of breast cancer is rare in transgender population. As they have very limited access to medical care, it is much less likely to pursue breast cancer screening than in other individuals not identified as transgender. Review of the cases from literature: Up to date, only 13 cases of the breast cancer transsexuals (female to male) have been reported in six published papers worldwide. Histological examination of the breast tumor in female-to-male transgender showed progesterone/estrogen-positive invasive ductal carcinoma. Discussion: Gender identity describes a person’s inherent sense of being a woman, man, or of neither gender, whereas sexual orientation refers to how people identify their physical and emotional attraction to others. Gender reassignment surgery, as series of complex surgical genital and non-genital procedures, is recognized as the most effective treatment for patients with gender dysphoria. The two main principles of hormone therapy for transgender patients are to reduce endogenous hormone levels and their associated sex characteristics and replace them with hormones of the preferred sex. Breast cancer infrequently occurs in transgender patients. Even breast core biopsies can be difficult for interpreting after changes in breast tissue in female-to-male transsexuals following gender reassignment. Conclusion: Reviewing the literature, so many different data concerning probability of breast cancer in sexual minority can be found. Breast cancer screening program should be offered to all transgender individuals according to national guidelines. Very important is to take into consideration a transgender person’s natal and surgical anatomy, unique clinical concerns for depression and anxiety, risk of suicide together with risk factors including experiences of harassment or physical or sexual violence, low education level, and unemployment. Understanding the need for mammography in these often marginalized groups is very important in addressing breast cancer disparities despite differences in insurance coverage in some countries and greater concern for the cancer of the breast in residual breast tissue. The best screening rule, ever, for breast cancer in male transsexuals and other similar population should be, besides surgical history and hormonal status, “Screen Now, Screen Regularly and Screen What You Have.”. © 2018, Springer Science+Business Media, LLC, part of Springer Nature.
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    Breast cancer and its impact in male transsexuals
    (2018)
    Nikolić, Dejan (7005493858)
    ;
    Granić, Miroslav (56803690200)
    ;
    Ivanović, Nebojša (23097433900)
    ;
    Zdravković, Darko (23501022600)
    ;
    Nikolić, Aleksandra (59432908700)
    ;
    Stanimirović, Violeta (6603196190)
    ;
    Zdravković, Marija (24924016800)
    ;
    Dikić, Srdjan (6508063280)
    ;
    Nikolić, Marko (57194492382)
    ;
    Djordjević, Miroslav (7102319341)
    Introduction: Lesbian, gay, and bisexuals have unique healthcare needs. Breast cancer is leading cancer in women, worldwide, accounting for 25% of all cases. Annual incidence rates increased significantly in all countries and age groups. The occurrence of breast cancer is rare in transgender population. As they have very limited access to medical care, it is much less likely to pursue breast cancer screening than in other individuals not identified as transgender. Review of the cases from literature: Up to date, only 13 cases of the breast cancer transsexuals (female to male) have been reported in six published papers worldwide. Histological examination of the breast tumor in female-to-male transgender showed progesterone/estrogen-positive invasive ductal carcinoma. Discussion: Gender identity describes a person’s inherent sense of being a woman, man, or of neither gender, whereas sexual orientation refers to how people identify their physical and emotional attraction to others. Gender reassignment surgery, as series of complex surgical genital and non-genital procedures, is recognized as the most effective treatment for patients with gender dysphoria. The two main principles of hormone therapy for transgender patients are to reduce endogenous hormone levels and their associated sex characteristics and replace them with hormones of the preferred sex. Breast cancer infrequently occurs in transgender patients. Even breast core biopsies can be difficult for interpreting after changes in breast tissue in female-to-male transsexuals following gender reassignment. Conclusion: Reviewing the literature, so many different data concerning probability of breast cancer in sexual minority can be found. Breast cancer screening program should be offered to all transgender individuals according to national guidelines. Very important is to take into consideration a transgender person’s natal and surgical anatomy, unique clinical concerns for depression and anxiety, risk of suicide together with risk factors including experiences of harassment or physical or sexual violence, low education level, and unemployment. Understanding the need for mammography in these often marginalized groups is very important in addressing breast cancer disparities despite differences in insurance coverage in some countries and greater concern for the cancer of the breast in residual breast tissue. The best screening rule, ever, for breast cancer in male transsexuals and other similar population should be, besides surgical history and hormonal status, “Screen Now, Screen Regularly and Screen What You Have.”. © 2018, Springer Science+Business Media, LLC, part of Springer Nature.
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    Characteristics of Akinetic and Dyskinetic Left Ventricular Aneurysms in the Context of Echocardiographic Diagnosis and Treatment Selection
    (2024)
    Tomić, Slobodan (35184112100)
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    Veljković, Stefan (57216083046)
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    Radoičić, Dragana (58568968400)
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    Đokić, Olivera (57035697600)
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    Šljivo, Armin (57213670902)
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    Stojanović, Ivan (55014093700)
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    Nikolić, Aleksandra (59432908700)
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    Bojić, Milovan (7005865489)
    Background and Objectives. Distinct pressure curve differences exist between akinetic (A-LVA) and dyskinetic (D-LVA) aneurysms. In D-LVA, left ventricular (LV) ejection pressure decreases relative to the aneurysm size, whereas A-LVA does not impact pressure curves, indicating that the decrease in stroke volume (SV) and cardiac output is proportional to the size of dyskinesia. This study aimed to assess the frequency of A-LVA and D-LVA, determine aneurysm size parameters (volume and surface area), and evaluate predictive parameters using echocardiography in A-LVA and D-LVA. Furthermore, it aimed to compare individual echocardiographic parameters, according to ejection fraction (EF) and SV, with hemodynamic events shown in experimental models of A-LVA and D-LVA and their significance in everyday clinical practice. Materials and Methods. This clinical study included patients with post-infarction left ventricular aneurysm (LVA) admitted to the cardiovascular institute ‘’Dedinje”, Serbia. Echocardiographic volume and surface area of LV and LVA were determined (by the area–length method) along with EF (by Simpson’s method). Results. A-LVA was present in 62.9% of patients, while D-LVA was present in 37.1%. Patients with D-LVA had significantly higher systolic aneurysm volume (LVAVs) (94.07 ± 74.66 vs. 51.54 ± 53.09, p = 0.009), systolic aneurysm surface area (LVAAs) (23.22 ± 11.73 vs. 16.41 ± 8.58, p = 0.018), and end-systolic left ventricular surface areas (LVESA) (50.79 ± 13.33 vs. 42.76 ± 14.11, p = 0.045) compared to patients with A-LVA. The ratio of LVA volume to LV volume was higher in the D-LVA in systole (LVAVs/LVESV). The end-diastolic volume of LV (LVEDV) and end-systolic volume of LV (LVESV) did not significantly differ between D-LVA and A-LVA. EF (21.25 ± 11.92 vs. 28.18 ± 11.91, p = 0.044) was significantly lower among patients with D-LVA. Conclusions. Differentiating between A-LVA and D-LVA using echocardiography is crucial since D-LVA causes greater hemodynamic disturbances in LV function, and thus surgical resection of the aneurysm or LV reconstruction must have a positive effect regardless of myocardial revascularization surgery. © 2024 by the authors.
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    Comparative Analysis of Basal vs. Apical Left Ventricular Aneurysms: Impact on Ejection Fraction and Cardiac Function
    (2024)
    Tomić, Slobodan (35184112100)
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    Veljković, Stefan (57216083046)
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    Šljivo, Armin (57213670902)
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    Raičković, Tatjana (57217308817)
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    Lakčević, Jovana (57215874023)
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    Đokić, Olivera (57035697600)
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    Peruničić, Ana (59388192200)
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    Nikolić, Aleksandra (59432908700)
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    Bojić, Milovan (7005865489)
    Background and Objectives: Left ventricular aneurysm (LVA) is associated with a decline in cardiac function, evidenced by a lower ejection fraction (EF), due to the reduction in the proportion of functional myocardium. The left ventricular end-diastolic volume (LVEDV), the left ventricular aneurysm volume (LVAV), and the LVAV/LVEDV ratio show a strong correlation with the EF. The aim of this study was to determine LVA characteristics post-myocardial infarction (basal vs. apical) and to evaluate the impact of aneurysm volume in diastole (LVAVd), aneurysm area in diastole (LVAAd), and their respective ratios with LVEDV and area (LVEDA) on the EF, in order to identify the most critical predictive factors for assessing and managing the negative impact of aneurysms on cardiac function. Materials and Methods: This observational study included post-infarction LVA patients at the “Dedinje” Cardiovascular Institute in Belgrade, Serbia, undergoing routine transthoracic echocardiography. Echocardiography assessed volumes (LVEDV, LVESV, LVAVd, LVAVs) and areas (LVAAd, LVAAs, LVEDA, LVESA) using the area–length method. The ratios (LVAVd/LVEDV, LVAVs/LVESV, LVAAd/LVEDA, LVAAs/LVESA) were derived from these measures. The left ventricular EF was calculated using Simpson’s method. Results: Basal aneurysms showed a significantly smaller LVAVd (p = 0.016), LVAAd (p = 0.003), and LVAAs (p = 0.029) compared to apical aneurysms, indicating that basal aneurysms are smaller in size. However, there was no significant difference in the EF and overall LV volumes between the groups, although the basal aneurysm group had a slightly higher EF and end-diastolic volume, with a slightly lower end-systolic volume. Furthermore, when comparing the correlation between the EF and the LVAVd, the LVEDV, and the LVAVd/LVEDV ratio, the results indicate that the LVAVd had the greatest impact on the EF (−0.695), followed by the LVAVd/LVEDV ratio (−0.637), and the lowest correlation is between the EF and LVEDV. A similar relationship is observed when comparing the EF with the LVESV, the LVAVs, and the LVAVs/LVESV ratio. Conclusions: Basal aneurysms are significantly smaller than apical ones, yet EF and LV volumes remain similar between the groups, with the EF being slightly higher in the basal group. In cases of LVA, LVAVd shows the strongest negative correlation with the EF, indicating its significant impact on systolic function, followed by the LVAVd/LVEDV ratio, with the weakest correlation seen between the EF and LVEDV. © 2024 by the authors.
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    Left Coronary Artery—Right Ventricle Fistula Case Report: Optimal Treatment Decision
    (2025)
    Veljković, Stefan (57216083046)
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    Peruničić, Ana (59388192200)
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    Lakčević, Jovana (57215874023)
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    Šljivo, Armin (57213670902)
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    Radoičić, Dragana (58568968400)
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    Farkić, Mihajlo (56725607400)
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    Boljević, Darko (57204930789)
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    Kljajević, Jelena (58911440300)
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    Bojić, Milovan (7005865489)
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    Nikolić, Aleksandra (59432908700)
    Coronary artery fistulas (CAFs) are rare congenital anomalies, presenting in 0.05–0.9% of cases, characterized by an aberrant connection between a coronary artery and a cardiac chamber or great vessel. Clinical manifestations can include heart failure, myocardial ischemia due to coronary steal, arrhythmias, or infective endocarditis. We report a case of a 39-year-old man initially evaluated in 2016 for peripheral edema and suspected right ventricular (RV) abnormality. Earlier assessments indicated a left anterior descending (LAD) coronary artery–RV fistula, but initial catheterization was nondiagnostic. Transthoracic echocardiography (TTE) revealed a dilated left coronary artery (LCA) and an RV apex aneurysm, confirmed by CT and coronary angiography, showing a 14 mm LAD fistula with large aneurysmal sacs (45.6 × 37.3 mm). Cardiac MRI demonstrated a tortuous LAD fistula draining into RV aneurysmal sacs with preserved biventricular function. Surgical intervention was recommended, but the patient declined and was lost to follow-up until 2022, being asymptomatic. Re-evaluation showed progression in aneurysm size (47 × 45 mm and 16 × 18 mm) without ventricular functional change. Follow-up TTE in 2023 indicated stable findings. This case emphasizes the necessity of multimodal imaging (TTE, CT, MRI, angiography) for CAF diagnosis and management planning. Given the variability in CAF presentation and outcomes, individualized management—including surgical, percutaneous, or conservative strategies—is crucial. Persistent follow-up is essential for monitoring potential complications and guiding treatment, even in asymptomatic patients refusing intervention. © 2025 by the authors.
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    Left ventricular noncompaction: Clinical-echocardiographic study; [Kliničko i ehokardiografsko ispitivanje bolesnika sa nedovoljno formiranim miokardom leve komore]
    (2012)
    Nikolić, Aleksandra (59432908700)
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    Jovović, Ljiljana (6602712762)
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    Tomić, Slobodan (35184112100)
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    Vuković, Milan (7003907313)
    Background/Aim. Left ventricular noncompaction (LVNC) is a disorder in endomyocardial morphogenesis, seen either isolated (in the absence of other cardiac anomalies) or in association with congenital heart disease and some neuromuscular diseases. Intrauterine arrest of the compaction of myocardial fibers is postulated to be the reason of LVNC. Recognition of this condition is extremely important due to its high mortality and morbidity that lead to progressive heart failure, ventricular arrhythmias and thromboembolic events. The aim of this study was to determine the prevalence and clinical presentation of LVNC among consecutive outpatients according to clinical and echocardiographyic findings. Methode. A total of 3,854 consecutive patients examined at the Institute for Cardiovascular Diseases within a period January 2006 - January 2007 were included in the study. All the patients underwent echocardiographic examination using the same equipment (Vivid 7, GE Medical System). Echocardiographic parameters and clinical presentation in patients with echocardiographic criteria for LVNC were analyzed. Results. Analyzing 3,854 consecutive outpatients, using two-dimensional Color Doppler echocardiography from January 2006 to January 2007, 12 patients met the criteria for LVNC. Seven of them were male. The mean age at diagnosis was 45 ± 15 years. Analyzing clinical manifestation of LVNC it was found that seven patients had signs of heart failure, six had arrhythmias with no embolic events. Conclusion. Our results suggest that the real prevalence of LVNC may be higher than expected. New studies have to be done to solve this problem.

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