Lilioara-Alexandra Oprinca-Muja

Dr. Lilioara-Alexandra Oprinca-Muja


Research Focus & Metrics

Academic Career Length

5Years (2022-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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21 June 2022 in Microorganisms
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GOGeorge Călin Oprinca
George Călin Oprinca
LOLilioara-Alexandra Oprinca-Muja
Lilioara-Alexandra Oprinca-Muja
MMManuela Mihalache
Manuela Mihalache
Rares Mircea BirlutiuRares Mircea Birlutiu
Rares Mircea Birlutiu
Victoria BirlutiuVictoria Birlutiu
Victoria Birlutiu
Myocardial injury in patients with SARS-CoV-2 infection may be attributed to the presence of the virus at the cellular level, however, it may also be secondary to other diseases, playing an essential role in the evolution of the disease. We evaluated 16 patients who died because of SARS-CoV-2 infection and analyzed the group from both clinical and pathological points of view. All autopsies were conducted in the Sibiu County morgue, taking into consideration all the national protocols for COVID-19 patients. Of the 16 autopsies we performed, two were complete, including an extensive examination of the cranial cavity. In our study, the cardiac injury was primarily cumulative. Chronic cardiac injuries included fatty infiltration of the myocardium in five cases, fibrosis in 11 cases, and coronary atherosclerosis in two cases. Among the cases with evidence of acute cardiovascular injuries, inflammatory lymphocytic infiltrate was observed in nine cases, subepicardial or visceral pericardial neutrophil-rich vascular congestion in five cases, and venous thrombosis in three cases. Acute ischemia or myocytic distress was identified by vacuolar degeneration in four cases; areas of undulated and/or fragmented myocardial fibers, with eosinophilia and nuclear pyknosis with or without enucleation of the myocytes in nine cases; and in one case, we observed a large area of myocardial necrosis. Immunohistochemical criteria confirmed the presence of the SARS-CoV-2 antigen at the level of the myocardium in only two cases. Comorbidities existing prior to SARS-CoV-2 infection associated with systemic and local inflammatory, thrombotic, hypoxic, or immunological phenomena influence the development of cardiac lesions, leading to death.

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Journal Article
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BABereanu Simona Alina
Bereanu Simona Alina
BVBogdan Ioan Vintilă
Bogdan Ioan Vintilă
LOLilioara-Alexandra Oprinca-Muja
Lilioara-Alexandra Oprinca-Muja
RBRares Bereanu
Rares Bereanu
ICIoana Roxana Codru
Ioana Roxana Codru
Mihai SavaMihai Sava
Mihai Sava
Background/Objectives: The rise in healthcare-associated infections caused by multidrug-resistant (MDR) bacteria in hospitals, particularly in intensive care units, has resulted in increased rates of morbidity and mortality, escalating costs, and has become a significant public health concern. In our Intensive Care Unit, we address healthcare-associated infections caused by multidrug-resistant bacteria, with a specific focus on those listed in the WHO 2024 List of Critically and Highly Prioritized Pathogens. Methods: Over the course of 1 year, from 1 January to 31 December 2024, we monitored the prevalence of healthcare-associated infections in the Intensive Care Unit of the Sibiu County Emergency Clinical Hospital, Romania, and the antibiotic susceptibility of the isolated bacteria. Results: The majority of infections were caused by pathogens in the ESKAPEE group. The most frequently isolated microorganism was Klebsiella pneumoniae (36.8%), followed by Acinetobacter baumannii (24.5%), classified as a critical priority by the WHO in 2024. Most positive samples for critical priority pathogens, including Klebsiella pneumoniae and Acinetobacter baumannii, as well as all MRSA strains (high priority), were obtained from tracheal aspirates collected from intubated and mechanically ventilated patients. A significant proportion of the isolated bacteria were multidrug-resistant, including extensively drug-resistant and pan-drug-resistant strains. Conclusions: The increase in antibiotic and antimicrobial resistance among hospital strains raises serious concerns about limited treatment options.

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GOGeorge Călin Oprinca
George Călin Oprinca
CMCosmin Ioan Mohor
Cosmin Ioan Mohor
BABereanu Simona Alina
Bereanu Simona Alina
LOLilioara-Alexandra Oprinca-Muja
Lilioara-Alexandra Oprinca-Muja
IBIancu Bogdan-Duică
Iancu Bogdan-Duică
CMCalin Ilie Mohor
Calin Ilie Mohor
While considerable attention has been devoted to respiratory manifestations, such as pneumonia and acute respiratory distress syndrome (ARDS), emerging evidence underlines the significance of extrapulmonary involvement. In this study, we examined 15 hospitalized patients who succumbed to severe complications following SARS-CoV-2 infection. These patients were admitted to the Sibiu County Clinical Emergency Hospital in Sibiu, Romania, between March and October 2021. All patients were ethnic Romanians. Conducted within a COVID-19-restricted environment and adhering to national safety protocols, autopsies provided a comprehensive understanding of the disease’s multisystemic impact. Detailed macroscopic evaluations and histopathological analyses of myocardial, renal, hepatic, splenic, and gastrointestinal tissues were performed. Additionally, reverse transcription-quantitative polymerase chain reaction (rt-qPCR) assays and immunohistochemical staining were employed to detect the viral genome and nucleocapsid within the tissues. Myocardial lesions, including ischemic microstructural changes and inflammatory infiltrates, were prevalent, indicative of COVID-19’s cardiac implications, while renal pathology revealed the chronic alterations, acute tubular necrosis, and inflammatory infiltrates most evident. Hepatic examination identified hepatocellular necroinflammatory changes and hepatocytic cytopathy, highlighting the hepatic involvement of SARS-CoV-2 infection. Splenic parenchymal disorganization was prominent, indicating systemic immune dysregulation. Furthermore, gastrointestinal examinations unveiled nonspecific changes. Molecular analyses detected viral genes in various organs, with immunohistochemical assays confirming viral presence predominantly in macrophages and fibroblasts. These findings highlighted the systemic nature of SARS-CoV-2 infection, emphasizing the need for comprehensive clinical management strategies and targeted therapeutic approaches beyond respiratory systems.

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CMCosmin Ioan Mohor
Cosmin Ioan Mohor
SFSorin Radu Fleaca
Sorin Radu Fleaca
LOLilioara-Alexandra Oprinca-Muja
Lilioara-Alexandra Oprinca-Muja
GOGeorge Călin Oprinca
George Călin Oprinca
Mihai Dan RomanMihai Dan Roman
Mihai Dan Roman
CMCalin Ilie Mohor
Calin Ilie Mohor
Polysplenia syndrome represents a type of left atrial isomerism characterized by multiple small spleens, often associated with cardiac malformations and with situs ambiguus of the abdominal organs. The case presented is of a one-month-old male infant, weighing approximately 3000 g, born at the County Clinical Emergency Hospital of Sibiu, who was hospitalized from birth until death. The patient suffered cardio-respiratory arrest due to severe hypoxia and septicemia on the background of a series of complex cardiac malformations associated with congenital abdominal organ anomalies. Examination of the body revealed a common atrium with complete atrioventricular canal defect, left ventricular hypertrophy, right ventricle hypoplasia, truncus arteriosus, superior vena cava duplication, bilobation of the lungs, situs ambiguous of the abdominal organs with right-sided stomach, a midline liver, gall bladder agenesis, multiple right-sided spleens and complete inversion of the intestines and pancreas. Histopathology concluded that the patient suffered cardiac lesions consistent with infantile lactic acidosis, as well as pulmonary modifications suggesting congenital alveolar dysplasia and altered hepatic architecture compatible with fibrosis.

26 February 2025 in Healthcare
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LOLilioara-Alexandra Oprinca-Muja
Lilioara-Alexandra Oprinca-Muja
ACAdrian Nicolae Cristian
Adrian Nicolae Cristian
ETElena Topircean
Elena Topircean
ACAlina Cristian
Alina Cristian
MPMarius Florentin Popa
Marius Florentin Popa
SMSilviu Morar
Silviu Morar
Background/Objectives: Burnout is a critical concern among healthcare professionals, particularly during crises such as the COVID-19 pandemic. This study investigated burnout levels among forensic medicine and pathology personnel at three distinct phases: the early pandemic period (Phase 1—September 2020), the peak of the pandemic (Phase 2—October 2021), and the post-pandemic period (Phase 3—October 2024). Methods: A total of 37 participants employed in forensic medicine and pathology departments completed the Maslach Burnout Inventory (MBI). A one-way repeated measures ANOVA was conducted to assess within-subject differences over time. Normality and sphericity were tested using the Shapiro–Wilk test and Mauchly’s test, with the Greenhouse-Geisser correction. Post hoc Bonferroni-adjusted comparisons identified significant differences, and partial eta squared (η2) was reported for effect sizes. Results: Results showed significant fluctuations in burnout levels across the three phases. Emotional exhaustion and low personal accomplishment peaked during Phase 2, with slight reductions observed in Phase 3. Gender differences were evident, with females reporting higher EE levels and males exhibiting higher depersonalization across all phases. Marital and parental status also influenced burnout levels, with unmarried individuals and those without children showing higher burnout scores. Medical doctors experienced the highest burnout levels among professional roles, while auxiliary staff showed significant challenges in the PA subscale. Conclusions: The COVID-19 pandemic was pivotal in exacerbating burnout levels due to increased workload, crisis decision-making, and emotional toll. Although the sample size is limited, these findings underscore the importance of implementing targeted interventions to mitigate burnout among forensic and pathology personnel, especially during healthcare emergencies. Gender-based differences in burnout suggest the necessity of specific workplace well-being strategies, while the protective role of family status demonstrates the importance of work-life balance policies. The persistence of psychological distress after a medical crisis calls for long-term monitoring and support programs. There is a need for improved workload distribution, peer support networks, and mental health training to build resilience among forensic and pathology personnel.

24 February 2024 in Microorganisms
Verified
Journal Article
Open access
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GOGeorge Călin Oprinca
George Călin Oprinca
CMCosmin Ioan Mohor
Cosmin Ioan Mohor
LOLilioara-Alexandra Oprinca-Muja
Lilioara-Alexandra Oprinca-Muja
AHAdrian Gheorghe Hasegan
Adrian Gheorghe Hasegan
ACAdrian Nicolae Cristian
Adrian Nicolae Cristian
CMCalin Ilie Mohor
Calin Ilie Mohor
In this comprehensive study of 15 deceased patients with confirmed SARS-CoV-2 infection, spanning a time frame of 1 to 68 days from confirmation to death, autopsies were meticulously conducted with stringent safety measures. Clinical, laboratory, histopathological, and molecular analyses were integrated, shedding light on diverse pulmonary lesions, including acute inflammatory changes, vascular abnormalities, and aberrant regenerative processes. Immunohistochemical analysis, utilizing various markers, successfully identified the SARS-CoV-2 nucleocapsid antigen within infected tissue cells and also revealed what type of inflammatory cells are involved in COVID-19 pathogenesis. Molecular investigations through rt-qPCR revealed the persistent presence and varying quantities of viral genes, even after 68 days. Moreover, the viral nucleocapsid was present even in patients who died after 50 days of infection onset. Employing statistical analyses such as Chi-square and phi coefficient tests, significant associations among microscopic lesions and their correlation with molecular and immunohistochemical findings were elucidated. We could draw a map of what kind of lesions were a direct consequence of viral invasion and what lesions where secondary to the acute immunological response. This integrative approach enhances our understanding of the intricate relationships between pathological features, providing valuable insights into the multifaceted landscape of COVID-19 pathogenesis.