Browsing by Author "Bjelović, Miloš (56120871700)"

Background/Aim. Gastric contraction modulation (GCM) with the implanted DIAMOND device improves glycemic control and decreases weight. The main aim of this study was to evaluate the early efficacy of GCM using the DIAMOND (previously named TANTALUS) System in the improvement of glycemic control measured by changes in glycosylated hemoglobin (HbA1c). The effects of GCM on weight loss, body mass index (BMI), reduction of the waist circumference and metabolic parameters other than HbA1c were also evaluated. Methods. A total of 18 adult patients with type 2 diabetes were surgically treated at the Department for Minimally Invasive Upper Digestive Surgery, Clinic for Digestive Surgery in Belgrade, Serbia, using gastric pacemaker (DIAMOND System) from November 2014 to March 2016. Out of the total number of patients, 11 finished week 16 visit and were enroled in this prospective cohort study. Results. During the observed period, the average weight loss amounted to 8.05 kg (p < 0.05). The average difference between the baseline fasting glucose level and the level after 16 weeks period is 2.56 mmol/L. Similar findings were noted in fasting insulin levels, with an average decrease of 6.44 m/U/L after 16 weeks. The majority of patients experienced a decrease in HbA1c value: in 4 patients higher than 2%, and in 4 patients up to 2% (p < 0.05). Lower level of fasting insulin with simultaneous decrease in fasting glucose indicates improvement in insulin sensitivity on week 16 [homeostatic model assessment of insulin resistance (HOMA IR) average 5.25]. Conclusion. Gastric stimulation using the DIAMOND System for 16 weeks causes significant early improvement in glycemic control and insulin resistance. There is an additional positive effect on weight loss, body mass index (BMI) and reduction of the waist circumference as a main parameter of the metabolic syndrome. © 2018, Institut za Vojnomedicinske Naucne Informacije/Documentaciju. All rights reserved.

Treatment of gastroesophageal junction carcinomas have been debated for many years. This type of carcinomas has been classified as either gastric or esophageal carcinomas until Siewert’s classification was established and they were defined as a distinct entity. Risk factors for the development of these cancers are gastroesophageal reflux and Barrett’s esophagus, obesity, Helycobacter pylori infection, smok-ing, and alcohol. Symptoms of this disease include retrosternal pain, dysphagia to aphagia, and weight loss. Esophagogastroduodenoscopy with biopsy and pathohistological verification as well as CT of the chest and abdomen are crucial in establishing the diagnosis. Adenocarcinoma is predominant histo-logical type of these tumors. The stage of the disease is defined by the TNM classification. Treatment of gastroesophageal junction cancer is complex, multidisciplinary, and multimodal, and involves the use of surgery, chemotherapy, and radiotherapy, alone or in different combinations. Surgery is the major treatment modality for these tumors, especially in local stages. Radiotherapy is used in the treatment of these tumors in all stages of the disease, and especially in the multimodal treatment of locally advanced gastroesophageal junction cancer, both preoperatively and postoperatively, usually in combination with chemotherapy. Chemotherapy is used in the treatment of these cancers as preoperative, postoperative and systemic. Immunotherapy and target therapy, as new promising therapy, is usually applied in a systemic and postoperative approach. Future directions in the treatment of these cancers are directed towards new surgical procedures, new types of immunotherapy, as well as new radiotherapy techniques. © 2024, Serbia Medical Society. All rights reserved.

Background/Aim. Recent population based studies have proved that patients with functional dyspepsia (FD) have a significantly impaired health-related quality of life HRQoL as compared to general population. The aim of the study was to evaluate the impact of FD on (HRQoL) in patients treated in primary healthcare settings in Serbia. Methods. The study involved 1,448 patients with FD. The diagnosis was made by a general practice physician or gastroenterologist using the Rome III diagnostic criteria. The Serbian version of the questionnaire for the assessment of HRQoL of the U.S. Department of Health and Human Services’ Centers for Disease Control and Prevention (HRQoL-4 item CDC) was used for data collection, while descriptive statistical measurements were applied to calculate standard deviation, frequency as well as multiple logistic regression model. Results. Out of the total number of patients, 41.8% assessed their health condition as seriously disordered or poor. The mean values of health disorder duration over the last 30 days was 11.8 days, disordered physical health 7.2 days, mental disorder 6.3 days, and activity limitation 5.1 days. Also, 29.7%, 15.2%, 12.8% and 10.7% of the patients reported ≥ 14 unhealthy days, ≥ 14 physically unhealthy days, ≥ 14 mentally unhealthy days and ≥ 14 activity limitation days, respectively. Conclusion. From patients’ perspective, FD has a significant impact on HRQoL. In this study, 41.8% of the patients described their health status as fair or poor, and FD significantly affects all aspects of life, both mental and physical. The recognition of that impact is probably the most important step towards appropriate treatment and decreasing HRQoL impairment in patients with FD. © 2017, Institut za Vojnomedicinske Naucne Informacije/Documentaciju. All rights reserved.

Introduction Neuroendocrine tumors of the pancreas are rare neoplasms. They are divided into two groups: functional and non-functional. Non-functional tumors represent a diagnostic challenge, given that they often remain asymptomatic and are diagnosed as an incidental finding. Case outline We present a patient in whom the tumor was discovered at the junction of the body and the tail of the pancreas, on the dorsal side. The patient had no specific symptomatology, there was no loss in body weight. Considering the diagnostic procedures conducted and the condition of the patient, we decided to perform laparoscopic enucleation. The procedure was carried out in a safe and efficient manner, so that operative and postoperative recovery was uneventful. The definitive histopathological examination confirmed the finding of a non-functional pancreatic neuroendocrine tumor. Conclusion Laparoscopic enucleation is an effective and safe treatment modality for neuroendocrine tumors of the pancreas with well-known advantages, as compared to open surgery, but there is always a tendency to improve the already existing results and thus to contribute, not only to treatment, but to the greater comfort of the patient. Keywords. © 2021, Serbia Medical Society. All rights reserved.

Introduction: There has been an increasing interest for the laparoscopic treatment of early gastric cancer, especially among Eastern surgeons. However, the oncological effectiveness of Laparoscopic Gastrectomy (LG) for Advanced Gastric Cancer (AGC) remains a subject of debate, especially in Western countries where limited reports have been published. The aim of this paper is to retrospectively analyze short- and long-term results of LG for AGC in a real-life Western practice. Materials and methods: All consecutive cases of LG with D2 lymphadenectomy for AGC performed from January 2005 to December 2019 at seven different surgical departments were analyzed retrospectively. The primary outcome was diseases-free survival (DFS). Secondary outcomes were overall survival (OS), number of retrieved lymph nodes, postoperative morbidity and conversion rate. Results: A total of 366 patients with stage II and III AGC underwent either total or subtotal LG. The mean number of harvested lymph nodes was 25 ± 14. The mean hospital stay was 13 ± 10 days and overall postoperative morbidity rate 27.32%, with severe complications (grade ≥ III) accounting for 9.29%. The median follow-up was 36 ± 16 months during which 90 deaths occurred, all due to disease progression. The DFS and OS probability was equal to 0.85 (95% CI 0.81–0.89) and 0.94 (95% CI 0.92–0.97) at 1 year, 0.62 (95% CI 0.55–0.69) and 0.63 (95% CI 0.56–0.71) at 5 years, respectively. Conclusion: Our study has led us to conclude that LG for AGC is feasible and safe in the general practice of Western institutions when performed by trained surgeons. © 2021, The Author(s).

Introduction Laparoscopic Heller-Dor operation, a standard method in the treatment of achalasia, has been performed at the Center for Esophageal Surgery of the First Surgical Clinic since April 2006. Objective The aim of this study was to present this surgical procedure and initial experiences after 36 consecutive laparoscopic Heller-Dor operations. Methods This partly retrospective, partly prospective study presented our results after laparoscopic Heller-Dor operation (presentation of the treatment method). We performed a standard anterior esophagocardioymiotomy, without releasing the posterior aspect of the cardia, and anterior partial fundoplication. The type and severity of symptoms and their duration were evaluated based on questionnaires fulfilled by patients. The diagnosis was made based on radiological, endoscopic and manometric findings. Laparoscopic surgery as the method of treatment was evaluated based on the duration of surgery, intraand postoperative complications, time interval until the initiation of oral feeding, length of hospital stay, need for additional therapeutic measures after the operation and effect of surgery on the severity of symptoms. Results Preopereratively, dysphagia was the predominant symptom in all patients, while regurgitation was much lower (44%). The average duration of operation was 127 minutes. Postoperative hospitalization lasted on the average 5.7 days. From 36 treated patients, 34 (94.4%) considered that the effect of treatment was good or excellent. Postoperative dysphagia was present in two patients (5.6%) and was successfully solved by balloon dilatation. Conclusion Laparoscopic Heller-Dor operation is an effective and safe surgical procedure in resolving symptoms of achalasia and today presents the method of the first choice in the treatment of this disease.

Introduction Repair of hiatal hernias has been performed traditionally via open laparotomy or thoracotomy. Since first laparoscopic hiatal hernia repair in 1992, this method had a growing popularity and today it is the standard approach in experienced centers specialized for minimally invasive surgery.; Objective In the current study we present our experience after 200 consecutive laparoscopic hiatal hernia repairs.; Methods A retrospective cohort study included 200 patients who underwent elective laparoscopic hiatal hernia repair at the Department for Minimally Invasive Upper Digestive Surgery, Clinic for Digestive Surgery, Clinical Center of Serbia in Belgrade from April 2004 to December 2013.; Results Hiatal hernia types included 108 (54%) patients with type I, 30 (15%) with type III, 62 (31%) with giant paraesophageal hernia, while 27 (13.5%) patients presented with a chronic gastric volvulus. There were a total of 154 (77%) Nissen fundoplications. In 26 (13%) cases Nissen procedure was combined with esophageal lengthening procedure (Collis-Nissen), and in 17 (8.5%) Toupet fundoplications was performed. Primary retroesophageal crural repair was performed in 164 (82%) cases, Cleveland Clinic Foundation suture modification in 27 (13.5%), 4 (2%) patients underwent synthetic mesh hiatoplasty, 1 (0.5%) primary repair reinforced with pledgets, and 4 (2%) autologous fascia lata graft reinforcement. Poor result with anatomic and symptomatic recurrence (indication for revisional surgery) was detected in 5 patients (2.7%).; Conclusion Based on the result analysis, we found that laparoscopic hiatal hernia repair was a technically challenging but feasible technique, associated with good to excellent postoperative outcomes comparable to the best open surgery series. © 2014, Srp Arh Celok Lek. All rights reserved.

65-year-old man was evaluated because of vomiting and epigastric pain. The patient underwent upper gastrointestinal endoscopy and endoscopic ultrasound examination and was found to have multiple polypoid lesions in the D1 and D2 portions of the duodenum, causing almost complete obstruction of the duodenal lumen. The lesions were hyperintense on T1-weighted and intermediately intense on T2-weighted images, with a drop in signal on T1- and T2-weighted fat-suppressed images, consistent with a diagnosis of duodenal lipomas. Pathohistological examination confirmed the diagnosis of duodenal lipomas. © Japan Radiological Society 2012.

[No abstract available]

Introduction At the Department of Minimally Invasive Upper Digestive Surgery of the Hospital for Digestive Surgery in Belgrade, hybrid minimally invasive esophagectomy (hMIE) has been a standard of care for patients with resectable esophageal cancer since 2009. As a next and final step in the change management, from January 2015 we utilized total minimally invasive esophagectomy (tMIE) as a standard of care. Objective The aim of the study was to report initial experiences in hMIE (laparoscopic approach) for cancer and analyze surgical technique, major morbidity and 30-day mortality. Methods A retrospective cohort study included 44 patients who underwent elective hMIE for esophageal cancer at the Department for Minimally Invasive Upper Digestive Surgery, Hospital for Digestive Surgery, Clinical Center of Serbia in Belgrade from April 2009 to December 2014. Results There were 16 (36%) middle thoracic esophagus tumors and 28 (64%) tumors of distal thoracic esophagus. Mean duration of the operation was 319 minutes (approximately five hours and 20 minutes). The average blood loss was 173.6 ml. A total of 12 (27%) of patients had postoperative complications and mean intensive care unit stay was 2.8 days. Mean hospital stay after surgery was 16 days. The average number of harvested lymph nodes during surgery was 31.9. The overall 30-day mortality rate within 30 days after surgery was 2%. Conclusion As long as MIE is an oncological equivalent to open esophagectomy (OE), better relation between cost savings and potentially increased effectiveness will make MIE the preferred approach in high-volume esophageal centers that are experienced in minimally invasive procedures. © 2015, Serbia Medical Society. All rights reserved.

Background: RefluxStop™ is an implantable, non-active, single use device used in the laparoscopic treatment of GERD. RefluxStop™ aims to block the movement of the LES up into the thorax and keep the angle of His in its original, anatomically correct position. This new device restores normal anatomy, leaving the food passageway unaffected. Methods: In a prospective, single arm, multicentric clinical investigation analyzing safety and effectiveness of the RefluxStop™ device to treat GERD, 50 subjects with chronic GERD were operated using a standardized surgical technique between December 2016 and September 2017. They were followed up for 1 year (CE-mark investigation 6-months). Primary safety outcome was prevalence of serious adverse events related to the device, and primary effectiveness outcome reduction of GERD symptoms based on GERD-HRQL score. Secondary outcomes were prevalence of adverse events other than serious adverse events, reduction of total acid exposure time in 24-h pH monitoring, and reduction in average daily PPI usage and subject satisfaction. Results: There were no serious adverse events related to the device. Average GERD-HRQL total score at 1 year improved 86% from baseline (p < 0.001). 24-h pH monitoring compared to baseline showed a mean reduction percentage of overall time with pH < 4 from 16.35 to 0.80% at the 6-month visit (p < 0.001), with 98% of subjects showing normal 24-h pH. At 1 year: No new cases of dysphagia were recorded, present in 2 subjects, which existed already at baseline. Regular daily PPI usage occurred in all 50 subjects at baseline. At 1-year follow-up, only 1 subject took regular daily PPIs due to a too low placement of the device thereby prohibiting its function. None or minimal occasional episodes of regurgitation occurred in 97.8% of evaluable subjects. Gas bloating disappeared in 30 subjects and improved in 7 subjects. Conclusion: The new principle of RefluxStop™ is safe and effective to treat GERD according to investigation results. At 1-year follow-up, both the GERD-HRQL score and 24-h pH monitoring results indicate success for the new treatment principle. In addition, with the dynamic treatment for acid reflux, which avoids compressing the food passageway, prevalence of dysphagia and gas bloating are significantly reduced. Trial registration: ClinicalTrials.gov, NCT02759094. Registered 3 May, 2016, © 2020 The Author(s).

Introduction: Hemostatic abnormalities in liver cirrhosis are complex and multifactorial and may predispose to prolonged hemorrhage following invasive procedures. Due to increased perioperative bleeding risks, patients with cirrhosis should undergo elective surgery after making medical preparations. It has been shown that 1-deamino-8-D-arginine vasopressin (DDAVP), desmopressin, can be used as a safe and effective remedy in preventing and treating bleeding in cirrhotics. However, there is still scarce information of adequate test(s) for assessing effects of DDAVP in platelet dysfunction. The use of platelet function analyzer-100 (PFA-100) allows more reliable assessment of impaired primary hemostasis as well as follow-up of hemostatic changes induced by DDAVP effects. Case Outline: In a 49-year-old male with ethylic liver cirrhosis and prolonged bleeding time scheduled for elective left side inguinal hernia repair, we carried out PFA-100 testing to investigate the patient's platelet functional status. Results were affirmative for the presence of platelet functional problems. By standard coagulation tests the patient was also identified as having secondary hemostasis. Preoperatively, PFA-100 was used to test the patient's response to a standard dose of DDAVP, which was favorable. The patient was operated after medical preparations with DDAVP and vitamin K. Neither bleeding complications nor side effects of DDAVP were recorded in the perioperative period. Conclusion: The PFA-100 is a simple and reliable test for the assessment of primary hemostasis as well as in monitoring of DDAVP therapy.

Introduction/Objective Diabetes mellitus and its chronic complications impair quality of life (QoL) when compared to the one of the general population. The objective of this study was to determine the prevalence of > 14 unhealthy days per month among the patients with diabetes in Serbia and to determine the association of the socio-demographic characteristics and health characteristics with the total of > 14 unhealthy days. Methods Serbian version of a generic self-administered questionnaire from Centers for Disease Control and Prevention (CDC-HRQOL-4) was used for data collection in all three levels of care. Results The study involved 4898 patients with diabetes, 2283 (46.6%) men and 2611 (53.4%) women. Overall mean age was 57.3 ± 12.2 years with over one fifth (23.2 %) were younger than 50 years. Multivariate logistic regression analyses indicated that age > 65 (OR:1.575, 95%CI 1.100–2.256), being a woman (OR: 1.287, 95% CI 1.042–1.588), lower education (OR: 1.383, 95%CI 1.091–1.754), felt depressed ≥ 14 days (OR: 3.689, 95% CI 2.221–6.128), felt anxious ≥ 14 days (OR: 1.749, 95% CI 1.113–2.749), poor sleep ≥ 14 days (OR:2.161, 95%CI 1.569–2.988), fair or poor self-rated health ≥ 14 days (OR: 4.322, 95%CI 3.474–5.376) were associated with unhealthy days ≥ 14 days. The strongest negative association was observed between limited physical activity ≥ 14 days and a decrease in the QoL of people with diabetes (OR: 22.176, 95%CI 10.971–44.824). Conclusion This study highlights association between impaired QoL in patients with diabetes and physical activity limitations. Limited physical activity is the factor with the greatest negative impact on the QoL particularly in older, less educated, and women with diabetes. © 2023, Serbia Medical Society. All rights reserved.

Introduction/Objective The objective was to assess the effectiveness of laparoscopic gastrectomy, analyzing short-term outcomes of laparoscopic radical gastrectomy in treatment of advanced gastric neoplasms. Methods We performed a prospective cohort observational study, which included 30 patients who underwent elective radical laparoscopic gastrectomy (total or subtotal) for stomach neoplasms, performed in the period between March 2013 and February 2017. Results Thirteen patients (43%) had been diagnosed with distal gastric tumors, seven (23%) with proximal gastric tumors, four (13%) with pangastric tumors, four (13%) with mediogastric tumors, and two (7%) with bicentric tumors. Mean operation duration was 286 minutes. The average blood loss was 183 mL. Conversion rate was 10% (three patients). Total of seven (23%) patients had postoperative complications, and mean intensive care unit stay was 1 day. Mean hospital stay after surgery was 13.08 days. The average number of harvested lymph nodes was 33.9, and R0 resection was performed in 87% patients. The overall 30-day mortality rate was 0%. Conclusion Although technically challenging, laparoscopic gastrectomy is a safe and oncologically adequate procedure in the radical surgical treatment of advanced gastric neoplasms. © 2018, Serbia Medical Society. All rights reserved.

Introduction Recent data from the studies conducted in the Western countries have proved that patients with gastroesophageal reflux disease have significantly impaired health-related quality of life compared to general population. Objective The study is aimed at evaluating the burden of reflux symptoms on patients’ health-related quality of life. Methods The study involved 1,593 patients with diagnosed gastroesophageal reflux disease. The Serbian version of a generic self-administered Centers for Disease Control and Prevention questionnaire was used. Statistical analyses included descriptive statistics, Pearson chi-square test and a multiple regression model. Results Among all participants, 43.9% reported fair or poor health. Mean value of unhealthy days during the past 30 days was 10.4 days, physically unhealthy days 6.4 days, mentally unhealthy days 5.3 days and activity limitation days 4.3 days. Furthermore, 24.8% participants reported having ≥14 unhealthy days, 14.9% had ≥14 physically unhealthy days, 11.8% reported ≥14 mentally unhealthy days, and 9.4% had ≥14 activity limitation days. Conclusion This study addressed complex relationships between reflux symptoms and patients’ impaired everyday lives. © 2015, Serbia Medical Society. All rights reserved.