Sladjana Mihajlovic

Dr. Sladjana Mihajlovic

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Research Focus & Metrics

Academic Career Length

7Years (2020-Present)

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

Representative Publications

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ANAleksandra Nikolić
Aleksandra Nikolić
BBBojana Bukurov
Bojana Bukurov
IKIlija Kocic
Ilija Kocic
ISIvan Soldatovic
Ivan Soldatovic
SMSladjana Mihajlovic
Sladjana Mihajlovic
SGSandra Sipetic Grujicic
Sandra Sipetic Grujicic
Background and Objectives: Smartphone use has been rapidly increasing worldwide, which has brought possible smartphone addiction into the focus of research. In order to identify potential smartphone addicts, several scales were developed to assess smartphone addiction. Among them, the Smartphone Addiction Scale was frequently used. The study aimed to test the reliability and validity of the Serbian version of the SAS-SV and estimate smartphone addiction prevalence among medical students. Materials and Methods: The study was conducted in December 2018 on a convenience sample of 323 third-year medical students. The cross-cultural adaptation was performed following the well-established guidelines for cross-cultural adaptation of self-reported measures. Exploratory factor analysis was used to examine the structure of the questionnaire. Factor extraction was performed by principal component analysis with Varimax rotation. For test–retest reliability, students completed the questionnaire twice within seven days. Results: The Serbian version of the SAS-SV showed good internal consistency (Cronbach’s alpha = 0.89) and excellent reliability for test–retest scores (ICC = 0.94, 95% CI = 0.92–0.96). Factor analysis supported the extraction of one factor, which explained 51.538% of the variance. To explore convergent validity furthermore, the SAS-SV was correlated with time indicators of smartphone use. According to cut-off values for the SAS-SV score, 19.5% of students could be regarded as “addicted”, and often spent more time on smartphones and social networks on working days and weekends than “not addicted” students. Conclusions: The Serbian version of the SAS-SV is a reliable and valid instrument for detecting smartphone addiction among university students. Further research on this issue is encouraged to enable a better understanding of this ever-increasing public health issue.

2 February 2021 in Journal of Endocrinological Investigation
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AŠA. S. Šojat
A. S. Šojat
BDB. Dunjić-Kostić
B. Dunjić-Kostić
LMLjiljiana V. Marina
Ljiljiana V. Marina
MIM. Ivović
M. Ivović
NRN. V. Radonjić
N. V. Radonjić
SVS. Vujović
S. Vujović

15 October 2020 in Journal of Clinical Medicine
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NPNikola Panic
Nikola Panic
SMSladjana Mihajlovic
Sladjana Mihajlovic
MVMiroslav Vujasinovic
Miroslav Vujasinovic
MBMilutin Bulajić
Milutin Bulajić
MLMatthias Löhr
Matthias Löhr
Background: We conducted a systematic review in order to summarize the available data on pancreatitis associated with viral hepatitis. Methods: A comprehensive literature search of Medline, Scopus and ISI Web of Science databases was conducted and papers eligible for the inclusion identified. Results: In total, 46 studies reporting data on 73 patients were included in the analysis. Most of the cases were diagnosed in Asia (57.53%), followed by North America (23.29%), and Europe (13.70%). Most of the patients were affected by hepatitis A virus (HAV) (42.47%), followed by hepatitis E virus (HEV) (28.77%), hepatitis B virus (HBV) (8.22%), and hepatitis C virus (HCV) (1.37%), while 17.81% at the time of diagnosis were classified as affected by “hepatitis virus”. Pancreatitis was severe in 32.88% of cases. The respiratory system was affected in 2.74% of patients, 6.85% experienced renal failure, while 5.48% experienced a multiorgan dysfunction syndrome (MODS). Four patients (5.48%) needed pancreatic surgery. Despite the treatment, 21.92% of patients died. We identified fulminant hepatitis (p < 0.0001), MODS (p < 0.0001) and severe pancreatitis (p < 0.0001) to be significantly more present in patients who died in comparison to cured ones. Conclusion: Increased awareness of pancreatic involvement in viral hepatitis is needed because it can have a substantial impact on therapeutic approaches and outcomes.

2 March 2020 in Children
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Milan LackovicMilan Lackovic
Milan Lackovic
DNDejan Nikolic
Dejan Nikolic
DFDejan Filimonovic
Dejan Filimonovic
IPIvana Petronic
Ivana Petronic
SMSladjana Mihajlovic
Sladjana Mihajlovic
DCDragana Cirovic
Dragana Cirovic
Our study aimed to analyze the reliability, consistency, and temporal stability of the Alberta Infant Motor Scale (AIMS) in Serbian infants. Additionally, we aimed to present a percentile distribution of AIMS in the tested population. The prospective study included 60 infants that were divided into three age groups: 0–3 months, 4–7 months, and 8–14 months. The Serbian version of AIMS was tested by two raters on two different occasions (test/retest) with a five day period between tests. The observed inter-rater reliability (intraclass correlation coefficient (ICC)) was more than 0.75 for all AIMS scores, except for standing (ICC 0.655 = moderate) in the age group of 4–7 months on retest between raters. The observed intra-rater reliability (ICC) was more than 0.75 for all AIMS scores except standing (ICC 0.655 = moderate) in the age group 4–7 months in test–retest for Rater One, and for sitting (ICC 0.671 = moderate) and standing (ICC 0.725 = moderate) in the age group between 0–3 months on test–retest for Rater Two. The Serbian version of AIMS was shown to have high consistency and high reliability with good to high temporal stability. Thus, it can be used in the evaluation of infants’ motor development in Serbia.

1 January 2021 in JSLS : Journal of the Society of Laparoscopic & Robotic Surgeons
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RMRastko Maglic
Rastko Maglic
ARAleksandar Rakic
Aleksandar Rakic
BBBranka Bonaci-Nikolic
Branka Bonaci-Nikolic
DMDragana Maglic
Dragana Maglic
PJPredrag Jokanovic
Predrag Jokanovic
SMSladjana Mihajlovic
Sladjana Mihajlovic
Cervical ectopic pregnancy is one of the rarest forms of ectopic pregnancy. We present a single center case series of 10 cases of cervical ectopic pregnancy, where 3 patients underwent small-caliber hysteroscopy as a single treatment method.This was a ...

1 January 2025 in Medicinska istrazivanja
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SMSladjana Mihajlovic
Sladjana Mihajlovic
SVSvetlana Vujović
Svetlana Vujović
MHMina Hagen
Mina Hagen
Milan LackovicMilan Lackovic
Milan Lackovic
SMSanja Milić
Sanja Milić
LMLjiljiana V. Marina
Ljiljiana V. Marina
Introduction / Aim: Endometrial polyps (EPs) are abnormal benign growths that originate from the endometrium. Risk factors associated with EPs are hormonal changes related to ageing, Tamoxifen use, hormone replacement therapy, overweight or obesity. The exact causal relationship between EPs and infertility remains unclear, but multiple mechanisms including mechanical obstruction and biochemical changes are proposed. The "gold standard" for diagnosing and treating EPs is hysteroscopy. This study aims to provide comprehensive understanding of the interplay between EP, age and infertility. Material and methods: Our study included 301 women undergoing hysteroscopic polypectomy due to infertility treatment, which were divided into two groups based on their age (age ≤ 35 and age > 35). Data were collected from patients' medical histories and pathology reports. Study variables included infertility type, type 2 diabetes mellitus, insulin resistance, polycystic ovary syndrome, endometriosis, hypothyreosis, previous unsuccessful intrauterine insemination and in vitro fertilization (IVF), menstrual cycle irregularities and abnormal uterine bleeding, polyp size and histopathology type. Results: At least one out of five participants had insulin resistance, polycystic ovary syndrome and abnormal uterine bleeding. Endometriosis, insulin resistance and primary infertility were more common in the younger group then in the older group. Previous history of unsuccessful IVF cycles, hypothyreosis and secondary infertility were associated with older age. Conclusion: The prevalence of EPs tends to increase with advanced women's age, period marked by natural decline in ovarian reserve, hormonal changes and changes in endometrial health. Addressing EPs through appropriate diagnostic and therapeutic measure and understanding the hormonal influence on EPs and EM is crucial for improving fertility outcomes.