Browsing by Author "Ladjević, Nebojša (16233432900)"

Chronic postoperative pain (CPOP) is a serious health issue that affects millions of patients every year. The incidence of CPOP is the highest after amputations, inguinal hernioplasty, thoracotomies, cardiac surgery and breast surgery. In addition to surgical factors, the other risk factors are: female gender, younger age, preoperative pain, psychological state and acute postoperative pain. The most common expression of CPOP is neuropathic pain after surgical trauma. The treatment of chronic postoperative neuropathic pain (CPNP) is difficult. Various methods have been recommended for its prevention, the most important being techniques that avoid nerve damage and adequate perioperative analgesia. The goal of this review was to discuss data from published studies examining the incidence, risk factors and mechanisms of CPOP, with a focus on surgery, the unique opportunity to implement pharmacological strategies for prevention of CPNP and current pharmacotherapy approaches for treatment of CPNP. Commonly used drugs to prevent and treat CPNP in the current clinical setting are: opioids, α2-adrener-gic agonists, cyclooxygenase antagonists, gabapentin, pregabalin, steroids, N-methyl-D-aspartate receptor antagonists and local anesthetics. © 2023, Dr. Mladen Stojanovic University Hospital. All rights reserved.

Background/Aim. Concerning the growth of ovarian carcinoma incidence and bad prognosis for malignant forms, early and precise diagnostics is gaining in importance as a condition for precise and appropriate therapy for ovarian tumor masses. The aim of this study was to analyze pre- and postoperative findings of patients with adnexal masses in order to identify factors which could predict the nature and stage of the tumor prior to surgery. Methods. All patients with adnexal masses who were treated in a 6-month period in the Institute of Obstetrics and Gynecology, Clinical Center of Serbia, (IOG, CCS), Belgrade, had their epidemiologic and gynecologic anamnesis and standard laboratory analyses taken prior to surgery. Also, clinical and ultrasonographic check up of pelvic organs was performed, as well as calculation of body mass index (BMI) and risk of malignancy index (RMI). After surgery we analyzed histopathological (HP) findings of tumors as a mean of final diagnosis and staging. For statistical analysis, we used SPSS 15 program. Results. Throughout a 6-month period, we examined 81 patients with adnexal masses treated in the IOG CCS. HP findings showed that there were significantly more benign (n = 51) than malignant (n = 30) tumors in all the patients (χ2 = 5.512). The patients with malignant HP findings were significantly older than those with benign adnexal masses (t = 3.362; p = 0.001). Significantly more patients with malignant HP findings were in menopause (p = 0.034). BMI values were highly significantly higher in the patients with malignant adnexal tumors (t = 3.421; p = 0.001). There was a statistically significant positive correlation between HP categories (benign, malignant) and RMI categories (low, intermediate and high risk) of all the patients (high risk, more malignant HP) (Roxy = 0.428; df = 78; p = 0.000). Conclusion. Patients in menopause, especially older ones, with high BMI and RMI should immediately be referred to a tertiary level institution, where appropriate surgery could be performed.

Background/Aim. Ovarian cancer is the leading cause of death from gynecologic malignancies. Risk of malignancy index (RMI) is recommended in assessment of patients with adnexal masses. The aim of this study was to verify the effectiveness of the RMI in the discrimination between benign lesions and malignant adnexal masses in clinical practice. Methods. Ultrasounds were performed for all the patients and menopausal status, CA125 level and calculated RMI were defined. All the patients were divided into 3 groups depending on RMI (< 25, 25-200, > 200). After operations all ad-nexal masses were analyzed histopathologically (HP) and then sensitivity, specificity and predictive value of RMI were calculated. Results. Out of a total of 81 patients involved benign tumor had 51 (62.96%) and malignant 30 (37.04%) of the patients. The average value of CA125 in the group of patients with benign adnexal masses was 68.3 U/mL and in the group of patients with malignant adnexal masses it was 581.95 U/mL. In the group of patients with benign adnexal masses the average RMI was 284.9 and in the group of patients with malignant adnexal masses RMI was 469.2. All the results showed a positive correlation between both HP categories and RMI categories. The more malignant HP result produced higher RMI and the cut off value was RMI = 200. Sensitivity of RMI was 83.33%, specificity was 94.12%, positive predictive value was 89.29% and negative predictive value was 90.57%. Conclusion. Our study showed that RMI is very reliable in differentiation benign from malignant ad-nexal masses.

Background/Aim. The incidence of postoperative delirium (POD) after non-cardiac surgery is a problem not often recognized by many anesthesiologists. The objective of our study was to detect POD and its possible cause, in patients undergoing radical retropubic prostatectomy (RRP) under general anesthesia. Methods. After Ethical Committee approval, we enrolled 80 patients, ASA (the American Society of Anestesiology) status II, scheduled to undergo RRP under general anesthesia, in a prospective study. All patients completed MMSE tests (the Folstein Mini Mental State Exam) the evening before, and 48 hours after the surgery. Assessment for the presence and severity of delirium was performed using CAM (the Confusion Assessment Method), and an assessment of the degree of agitation and sedation using RASS (the Richmond Agitation and Sedation Scale). Results. The average preoperative MMSE score (28.59 ± 1.04) significantly decreased following the surgery (27.74 ± 1.52) (p < 0.0001). The average postoperative MMSE score trend descended in correlation to intraoperative bleeding (p = 0.036). The patients with higher pain scores had significant decline in MMSE after the surgery (28.75 vs. 26.25; p < 0.001). Five patients were considered positive for delirium, and four of them reported regular alcoholic drinks intake (> 1 drink per day) preoperatively (p < 0.0001). Based on RASS score, 13 patients (16.3%) were agitated or sedated, and they had statistically significantly higher intraoperative bleeding (p < 0.001). Conclusion. Results of this study emphasize the importance of proper preoperative evaluation; especially regarding the alcohol consumption since all the patients that developed POD reported moderate alcohol consumption. Furthermore, greater intraoperative bleeding and postoperative pain scores did not influence the occurrence of delirium, but resulted in lower postoperative MMSE scores, which highlights the importance of adequate intraoperative treatment of patients during surgery and anesthesia in order to reduce the risk of developing POD. © 2021 Inst. Sci. inf., Univ. Defence in Belgrade. All rights reserved.

Purpose: There is an increasing interest in the identification of predictors for individual responses to analgesics and surgical pain. In this study, we aimed to determine psychological factors that might contribute to this response. We hence investigated patients undergoing a standardized surgical intervention (open nephrectomy). Patients and methods: Between May 2014 and April 2015, we conducted a prospective observational cohort study. The following psychological tests were administered preoperatively: Mini-Mental State Examination, Amsterdam Preoperative Anxiety and Information Scale (APAIS), Hamilton Anxiety Rating Scale, Hamilton Depression Rating Scale, and Pain Catastrophizing Scale. The primary outcome, postoperative pain intensity (11-point numerical rating scale, [NRS]), was assessed in the “immediate early” (first 8 hours), “early” (12 and 24 hours), and “late early” periods (48 and 72 hours). Results: A total of 196 patients were assessed, and 150 were finally included in the study. NRS scores improved from 4.9 (95% confidence interval [CI]: 4.7-5.1) in the “immediate early” to 3.1 (95% CI: 2.9-3.3) in the “early” and 2.3 (95% CI: 2.1-2.5) in the “late early” postoperative period. Most (87%) patients received intravenous opioids, while 13% received analgesics epidurally. Repeated measures analysis of variance indicated better pain management with epidural analgesia in the first two postoperative periods (F=15.01, p < 0.00). Postoperative pain correlated strongly with analgesic strategy and preoperative psychological assessment. Multiple linear regression analysis showed “expected pain” was the only predictor in the “immediate early” phase, and “anxiety” was most important in the “early” postoperative period. In the “late early” phase, catastrophizing was the predominant predictor, alongside “preoperative analgesic usage” and “APAIS anxiety”. Conclusion: After open nephrectomy, epidural analgesia conveys a clear advantage for pain management only within the first 24 hours. Moreover, as the psychological phenotype of patients changes distinctively in the first 72 postoperative hours, psychological variables increasingly determine pain intensity, even surpassing employed analgesic strategy as its main predictor. © 2018 Mimic et al.

Background/Aim. Urolithiasis is one of the most common urological illnesses with a continual rise in incidence and prevalence in the population. Its pathogenesis is multifactorial; hence, its consequences are serious problems that can significantly impact the quality of life of patients. In the last years, operational modes of urolithiasis treatment had undergone evolution changes towards minimally invasive treatment techniques aimed at improving its efficacy and patients' life quality. The aim of the study was to examine and evaluate the quality of life of the patients with urolithiasis depending on the applied treatment method. Methods. This research was designed as a panel study – a combination of a cross-sectional and cohort study. The sample included patients with urolithiasis treated with extracorporeal shock wave lithotripsy (ESWL) or ureteroscopic lithotripsy (Lithoclast). The research was carried during one year period and 100 respondents met the inclusion criteria. They were divided into two equal groups considering the applied method of the stone disintegration: the Lithoclast group (URSL) and the ESWL group. The instrument used for measuring the quality of life was Short Form (SF) 36 questionnaire. It was administrated to the patients immediately before the operation and one month after the operation. Results. The statistical analysis of the scores obtained preoperationally on the SF 36 questionnaire revealed the decrease in the quality of life of patients with urolithiasis in almost all dimensions of life. The statistically relevant difference in preoperative SF scores between the two groups of patients was not established except in the domain of the role of physical health and the domain of mental health. In the domain of the role of physical health, the Lithoclast group had a statistically significant higher score than the ESWL group, but in the domain of mental health, the ESWL group had a statistically significant higher score than the Lithoclast group. The postoperative statistical analysis of SF questionnaire and the examination of the impact of the treatment mode on the quality of life showed that the use of the Lithoclast method resulted in the much higher, statistically significant score at SF36 questionnaires regarding several life dimensions than the ESWL method. The application of the ESWL method even resulted in the decrease in the postoperational score for some life dimensions. Conclusion. The assessment of the quality of life is an adequate tool for the evaluation of treatment modes in the clinical practice. By using the SF 36 questionnaire in this study, we established that the ureteroscopic lithotripsy (the Lithoclast method) is a method that postoperatively results in much higher and statistically significant improvement of the quality of life of patients with urolithiasis in several health domains than the ESWL method. © 2020 Inst. Sci. inf., Univ. Defence in Belgrade. All rights reserved.