Publications by authors named "Aleksandra Pavlovic Markovic"

Article Synopsis
  • A retrospective study at the University Clinical Center of Serbia analyzed 245 patients who underwent video capsule endoscopy (VCE) from 2006 to 2016, primarily for obscure gastrointestinal bleeding (OGIB).
  • Among those with OGIB, VCE found a source of bleeding in 38.9%, with higher success in patients experiencing overt bleeding (48.9%) compared to occult bleeding (30.2%).
  • Common findings included angiodysplasias, tumors, Meckel's diverticulum, and Crohn's disease, indicating that VCE is especially useful for diagnosing patients with overt OGIB and inflammatory bowel disease (IBD).
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: Despite improvements in screening programs, a large number of patients with colorectal cancer (CRC) are diagnosed in an advanced disease stage. Previous investigations imply that glutathione transferases (GSTs) might be associated with the development and progression of CRC. Moreover, the detoxification mechanism of oxaliplatin, which represents the first line of treatment for advanced CRC, is mediated via certain GSTs.

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Elaboration of carotid atherosclerosis in the setting of hepatitis B virus (HBV) infection should emphasize the significance of extrahepatic manifestations of the infection pathogenesis. Diverse processes comprise the pathoevolution of HBV infection, rendering it a multi-systemic disease in its essence. Our work not only exemplified atherosclerosis as an often-underestimated contributor to the severity of HBV infection but has also highlighted the bidirectional relationship between the two.

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Background: Anemia is a presentation of an underlying disease or deficiency. As stated by the WHO, anemia is defined as hemoglobin (Hb) levels <12.0 g/dL in women and <13.

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Background: Jaundice is a common clinical finding in clinical practice of hepatologists and general practitioners. It occurs when serum bilirubin levels exceed 3 mg/dL.

Summary: In this review, we summarize the pathophysiological mechanism of jaundice, clinical approach to the patient with jaundice, and laboratory and imaging techniques.

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Background: Diarrhea is defined as the passage of loose stools and increase in stool frequency, weight, or volume. Diarrhea is an important health issue since it accounts for 2.5 million deaths in the world each year.

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Background: According to recent epidemiological data, annual deaths due to liver disease have increased dramatically, while predictions show that trends will continue to rise in the upcoming years.

Summary: Abnormal liver blood tests are one of the most common challenges encountered in the primary care setting. The prevalence of mildly elevated transaminase levels is around 10-20% in the general population.

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Results: There was a high statistically significant difference between IBD patients and controls in levels of hepcidin ( < 0.01). Namely, serum hepcidin levels were significantly higher in the control group.

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Background: Rectal cancer (RC) is one of the most common diagnosed cancers, and one of the major causes of cancer-related death nowadays. Majority of the current guidelines rely on TNM classification regarding therapy regiments, however recent studies suggest that additional histopathological findings could affect the disease course.

Aim: To determine whether perineural invasion alone or in combination with lymphovascular invasion have an effect on 5-years overall survival (OS) of RC patients.

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Methods: A cross-sectional study was conducted in consecutive newly diagnosed patients with inflammatory bowel disease in a tertiary care referral center. The initial evaluation included patient-reported outcome for stool frequency subscore and rectal bleeding. Endoscopic activity was determined using the Mayo scoring system for ulcerative colitis and the Simple Endoscopic Score for Crohn's disease.

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Gastroesophageal Reflux Disease (GERD) is characterized by acid and bile reflux in the distal oesophagus, and this may cause the development of reflux esophagitis and Barrett's oesophagus (BE). The natural histological course of untreated BE is non-dysplastic or benign BE (ND), then lowgrade (LGD) and High-Grade Dysplastic (HGD) BE, with the expected increase in malignancy transfer to oesophagal adenocarcinoma (EAC). The gold standard for BE diagnostics involves high-resolution white-light endoscopy, followed by uniform endoscopy findings description (Prague classification) with biopsy performance according to Seattle protocol.

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Background: The increasing incidence of duodenal neoplasm has underlined different methods of resection depending on the clinical presentation, endoscopic features and histopathology. In this comprehensive review, we systematically describe the current knowledge concerning the diagnosis and management of duodenal adenomas (DAs) and discuss data considering all possible therapeutic approaches.

Summary: Among a variety of duodenal lesions, including neuroendocrine tumors and gastrointestinal stromal tumors, DAs present precancerous lesions of the duodenal papilla or non-ampullary region necessitating removal.

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Background: Systemic inflammation in colorectal cancer (CRC) may be reflected by neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR), and mean platelet volume (MPV). This study was designed to investigate the efficiency of preoperative NLR, PLR, and MVP as a tool for the assessment of tumor characteristics in newly diagnosed patients with CRC.

Patients And Methods: For 300 patients and 300 healthy volunteers, complete blood counts with automated differential counts were performed.

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Background: Cancer is the second leading cause of death worldwide next to cardiovascular diseases. Despite the advancement in screening, early diagnosis, and development in treatment technology in last several decades, cancer incidence overall, particularly that of gastrointestinal (GI) cancers, is far from being controlled, and is expected to increase worldwide.

Summary: Although numerous preclinical and population-based clinical studies have already made important progress in restraining the overall cancer incidence and mortality, the full potential of preventive strategy is still far from being realized, and remains at an early stage.

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Glutathione-S transferases (GSTs) are xenobiotic-conjugation enzymes involved in the detoxification process of heterocyclic aromatic amines and polycyclic aromatic hydrocarbons, widely recognized risk factors of colorectal cancer (CRC) development. Polymorphism in GSTs often leads to alteration or complete lack of enzyme activity, which might have an effect on CRC carcinogenesis. Aim of this study was to investigate GST gene variants as risk factors in patients with CRC.

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Objective: Keeping in mind the rising prevalence of nonalcoholic fatty liver disease (NAFLD) and the need to establish noninvasive tests for its detection, the aim of our study was to investigate whether platelet count (PC), mean platelet volume (MPV), and platelet distribution width (PDW) can predict the presence of liver fibrosis in this group of patients.

Methods: In 98 patients with NAFLD and 60 healthy volunteers, complete blood counts with automated differential counts were performed and values of PC, PDW, MPV, and PCT were analyzed.

Results: Patients with NAFLD had lower PC and higher MPV, PCT, and PDW compared to the controls ( < 0.

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Objective: This study was designed to investigate the efficiency of preoperative serum carcinoembryonic antigen (CEA) and carbohydrate cancer antigen (CA19-9) levels for diagnosing synchronous liver metastases and lymph node in colorectal carcinoma (CRC) patients.

Subjects And Methods: A total of 300 patients with histologically diagnosed CRC were included in this study between May 2014 and March 2015. The data were obtained prospectively from patient's medical records: medical history, demographics, tumor location, differentiation (grade), depth of the tumor (T), lymph node metastases (N), distant metastases (M), lymphatics, venous and perineural invasion, and disease stage.

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Objectives: Colorectal cancer (CRC) is one of the most common malignancies worldwide. The aim of this study was to compare the outcomes of two different screening approaches in a small country (Montenegro, 650,000 inhabitants) with a CRC incidence lower than the European average.

Methods: Two structured invitation programs were compared with respect to compliance and neoplasia yield: (i) program A focused on first-degree relatives of CRC patients diagnosed in two hospitals (n=206), inviting them for colonoscopy; (ii) program B was an invitation program for fecal occult blood testing, followed by colonoscopy if positive, conducted in University Hospital, Podgorica, Montenegro, on 2760 randomly selected average-risk persons, age 50-74 years, living in a single municipality.

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Introduction: Bleeding from esophageal varices is a serious medical problem because of the risk of recurrent bleeding and high mortality rate (17-54%). Gastroesophageal varices develop in 50% of cirrhotic patients with portal hypertension, but can also develop in other pre- or post-hepatic causes of portal hypertension.

Case Report: We reported a 48-year-old female patient with portal hy- pertension caused by mesenterial vein thrombosis due to congenital thrombophilia.

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Aim: To determine predictors of clinically relevant pancreatic fistulas (CRPF) by measuring drain fluid amylase (DFA) in the early postoperative period.

Methods: This prospective clinical study included 382 patients with periampullary tumors that were surgically resected at our department between March 2005 and October 2012. A cephalic duodenopancreatectomy (DP) was performed on all patients.

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Introduction: Primary biliary cirrhosis (PBC) is an immune-mediated chronic progressive inflammatory liver disease leading to destruction of small interlobular bile ducts. Sarcoidosis is a chronic disorder of unknown etiology characterized by non-caseous granulomas.

Case Report: We reported a 69-year-old female patient with abdominal pain, malaise, vertigo, headaches, hands tremor and partial loss of hearing.

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Background: Primary biliary cirrhosis (PBC) is a chronic, progressive liver disease with elevated serum lipids. It remains unclear if hyperlipidemia increases the risk for atherosclerosis in PBC patients. Metabolic syndrome (MS) promotes the development of atherosclerotic cardiovascular disease due to abdominal obesity and insulin resistance.

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Introduction: Available literature states that the incidence of colorectal adenomas and cancer is more common in men, however, lately has been observed increasing number of patients among women.

Aim: to analyze the frequency and clinical characteristics of colorectal adenomas and cancer in women.

Materials And Methods: We performed a retrospective study in which data of 695 patients with colorectal adenomas and carcinomas have been analyzed from a total of 10,659 patients who underwent colonoscopy.

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