Faculty of Medicine

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    Predictive Admission Risk Factors, Clinical Features and Kidney Outcomes in Covid-19 Hospitalised Patients with Acute Kidney Injury
    (Macedonian Academy of Sciences and Arts/Walter de Gruyter GmbH, 2023-12-01)
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    Milenkova, Mimoza
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    Vasileva, Adrijana Spasovska
    Introduction: In COVID-19 patients, acute kidney injury (AKI) is recognized as a cause of high mortality. The aim of our study was to assess the rate and the predictors of AKI as well as survival among COVID-19 patients. Methods: We analyzed clinical and laboratory admission data, predictors of AKI and outcomes including the need for renal replacement therapy (RRT) and mortality at 30 days. Results: Out of 115 patients, 62 (53.9%) presented with AKI: 21 (33.9%) at stage 1, 7(11.3%) at stage 2, and 34 (54.8%) at stage 3. RRT was required in 22.6% of patients and was resolved in 76%. Pre-existing CKD was associated with a 13-fold risk of AKI (p= 0.0001). Low albumin (p = 0.017), thrombocytopenia (p = 0.022) and increase of creatine kinase over 350UI (p = 0.024) were independently associated with a higher risk for AKI. Mortality rates were significantly higher among patients who developed AKI compared to those without (59.6% vs 30.2%, p= 0.003). Low oxygen blood saturation at admission and albumin were found as powerful independent predictors of mortality (OR 0.937; 95%CI: 0.917 – 0.958, p = 0.000; OR 0.987; 95%CI: 0.885–0.991, p= 0.024, respectively). Longer survival was observed in patients without AKI compared to patients with AKI (22.01± 1.703 vs 16.69 ± 1.54, log rank p= 0.009). Conclusion: Renal impairment is significant in hospitalized COVID-19 patients. The severity of the disease itself is emphasized as main contributing mechanism in the occurrence of AKI, and lower blood saturation at admission is the strongest mortality predictor, surpassing the significance of the AKI itself.
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    Epidemiology of Community-Acquired Sepsis in Adult Patients: A Six Year Observational Study
    (Macedonian Academy of Sciences and Arts/Walter de Gruyter GmbH, 2018-07-01)
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    Saveski, Velimir
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    Sepsis is defined as life-threatening organ dysfunction caused by a dysregulated host response to an infection and it is a major cause of morbidity and mortality worldwide. The aim of this study is to describe epidemiology of community-acquired sepsis in the Intensive care unit (ICU) of the Macedonian tertiary care University Clinic for Infectious Diseases. A prospective observational study was conducted over a 6-year period from January, 2011 to December, 2016. All consecutive adults with community-acquired sepsis or septic shock were included in the study. Variables measured were incidence of sepsis, age, gender, comorbidities, season, source of infection, complications, interventions, severity indexes, length of stay, laboratory findings, blood cultures, 28-day and in hospital mortality. Of 1348 admissions, 277 (20.5%) had sepsis and septic shock. The most common chronic condition was heart failure (26.4%), and the most frequent site of infection was the respiratory tract (57.4%). Median Simplified Acute Physiology Score (SAPS II) was 50.0, and median Sequential Organ Failure Assessment (SOFA) score was 8.0. Blood cultures were positive in 22% of the cases. Gram-positive bacteria were isolated in 13% and Gram-negatives in 9.7% of patients with sepsis. The overall 28-day and in hospital mortality was 50.5% and 56.3% respectively. The presence of chronic heart failure, occurrence of ARDS, septic shock and the winter period may influence an unfavorable outcome. Mortality compared to previous years is unchanged but patients that we have been treating these last 6 years have had more severe illnesses. Better adherence to the Surviving Sepsis guidelines will reduce mortality in this group of severely ill patients.
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    The Paradox of SMURF-less Outcomes and its Implication for Diabetes
    (Oxford University Press (OUP), 2026-01-28)
    Cenko, Edina
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    Manfrini, Olivia
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    Yoon, Jinsung
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    Bergami, Maria
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    Vasiljevic, Zorana
    Individuals without standardized modifiable risk factors (SMuRF), which implicitly include those with diabetes, have been paradoxically reported to experience higher mortality following acute coronary syndromes (ACS). We aim to clarify the independent impact of diabetes on 30-day mortality after ACS and explore how grouping it with other SMuRF might obscure its true effect.
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    Item type:Publication,
    Predictive Admission Risk Factors, Clinical Features and Kidney Outcomes in Covid-19 Hospitalised Patients with Acute Kidney Injury
    (Macedonian Academy of Sciences and Arts/De Gruyter, 2023-12-01)
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    Milenkova, Mimoza
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    Vasileva, Adrijana Spasovska
    Introduction: In COVID-19 patients, acute kidney injury (AKI) is recognized as a cause of high mortality. The aim of our study was to assess the rate and the predictors of AKI as well as survival among COVID-19 patients. Methods: We analyzed clinical and laboratory admission data, predictors of AKI and outcomes including the need for renal replacement therapy (RRT) and mortality at 30 days. Results: Out of 115 patients, 62 (53.9%) presented with AKI: 21 (33.9%) at stage 1, 7(11.3%) at stage 2, and 34 (54.8%) at stage 3. RRT was required in 22.6% of patients and was resolved in 76%. Pre-existing CKD was associated with a 13-fold risk of AKI (p= 0.0001). Low albumin (p = 0.017), thrombocytopenia (p = 0.022) and increase of creatine kinase over 350UI (p = 0.024) were independently associated with a higher risk for AKI. Mortality rates were significantly higher among patients who developed AKI compared to those without (59.6% vs 30.2%, p= 0.003). Low oxygen blood saturation at admission and albumin were found as powerful independent predictors of mortality (OR 0.937; 95%CI: 0.917 - 0.958, p = 0.000; OR 0.987; 95%CI: 0.885-0.991, p= 0.024, respectively). Longer survival was observed in patients without AKI compared to patients with AKI (22.01± 1.703 vs 16.69 ± 1.54, log rank p= 0.009). Conclusion: Renal impairment is significant in hospitalized COVID-19 patients. The severity of the disease itself is emphasized as main contributing mechanism in the occurrence of AKI, and lower blood saturation at admission is the strongest mortality predictor, surpassing the significance of the AKI itself.
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    Item type:Publication,
    KIDNEY FUNCTION DECLINE AND MORTALITY IN DONORS WITH EXPANDED CRITERIA - FIVE YEARS FOLLOW UP STUDY
    (Macedonian Association of Anatomists and Morphologists, 2024)
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    Kidney donors are considered healthy, but with a need for continued medical follow up and encouragement for continued healthy lifestyle, especially when expanded criteria for donation are applied. This study aims to analyse the five years follow up of kidney donors after explanation, encountering risks of kidney function decline and donors’ mortality. In a retrospective study we evaluated a donor cohort with 5 years of follow up. Demographic characteristics as age, gender and the presence comorbidities as diabetes, hypertension, hyperlipidemia and Body Mass Index (BMI) >30kg/m2 were analyzed. Estimated glomerular filtration rate (eGFR) by CKD EPI formula was notified prior donation, and annually afterwards. Consultations with nephrologist or other specialists were notified. In a multivariate regression analysis, the reduction ratio (RR) of eGFR was explored as dependent variable. Cox regression analysis exploited mortality; Kaplan Meier survival curve was applied in respect of BMI. Seventy-five donors with average age above 55 years were predominantly women (69%), nearly every nineth patient had diabetes or obesity (9%). Proportion of donors referred to nephrologist at the 12 months, declined up to 58% at the fifth year, ignoring medical checks showed ascending trend to 16% at the end of second and third year and 12% at the end of observational period. The univariate regression analysis found diabetes, hyperlipidemia and hypertension, the presence of multiple comorbidities, gender and age as insignificant predictors of eGFR 12 months reduction ratio. The nephrologist referral showed borderline significance (β = - 0.103, p=0.076). Only BMI over 30kg/m2 worsened the kidney function (β = 0.600, p=0.001). Five years mortality rate was 6.7%. The diseased donors were significantly older, more frequently had diabetes and obesity also they had significantly lower eGFR pre-donation, at the end of the first year but also and more step decline of it after 12 months. In the multivariate analysis BMI>30kg/m2 emerged as most powerful predictor of mortality (HR 40.02; CI: [4.11-389), p=0.0001). Survival of obese patients was significantly shorter when compared with patients with lower body weight (43.28 ± 7.51 vs. 59.33±0.65, Log rank p=0.000), respectively. Our study demonstrates that the mortality and declination of renal function after donation are associated with nephrologist referral and other potentially modifiable factors, especially obesity. Improved protocols for pre-donation information, education and adequate after-donation follow up is mandatory to achieve better longevity and kidney function survival in these frail and precious individuals.
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    Item type:Publication,
    COMPARISON OF THREE SEVERITY SCORING MODELS FOR MORTALITY PREDICTION OF COMMUNITY-ACQUIRED PNEUMONIA
    (Peytchinski Publishing Ltd., Pleven, Bulgaria, 2024-10)
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    Rangelov, Goran
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    Cana, Fadil
    Introduction: Community-acquired pneumonia (CAP) is among the leading cause of morbidity and mortality worldwide. Several scoring models have been developed to accurately asses a disease severity and early to predict the outcome, however an optimal prognostic tool still is not clearly defined. The aim of this study was to compare three commonly used scores in patients with CAP, in order to determine the best tool that will early identify those with increased risk for mortality. Methods: The study included 129 patients aged ≥18 years with CAP hospitalized at the intensive care unit (ICU) at the University Clinic for Infectious Diseases in Skopje, during a 3-year period. Demographic, clinical and biochemical parameters were recorded and three scores were calculated at admission: SOFA (Sequential Organ Failure Assessment Score), SAPS II (Simplified Acute Physiology Score) and APACHE II (Acute Physiology and Chronic Health Evaluation II). Primary outcome was 30-day in-hospital mortality. Receiver Operating Curve (ROC) analysis was performed and areas under the curve (AUC) were compared to evaluate mortality prediction capacities of the scores. Results: The mean age of the patients was 61 year, predominantly were males (66,7%), most (79,1%) had co-morbid condition and Charlson Comorbidity index was significantly increased in non-survivors. An overall mortality was 43.4%. All severity scores had higher values in patients who died, that was statistically significant with the outcome. The AUC values of the scores were 0,749 for SOFA, 0.749 for SAPS II and 0.714 for APACHE II, showing similar prediction ability. Conclusion. Commonly used severity scoring models accurately identified patients with CAP that had an increased risk for poor outcome, but none of them showed to be superior over the others in ability to predict the mortality.
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    Factors that have impact on natural population change in Republic of North Macedonia
    (Институт за јавно здравје на Република Македонија = Institute of public health of Republic of Macedonia, 2023-12)
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    The planning of public health programmes is directly related with the demographic characteristics and the population change has long term impact on the health, health care and community interventions. The objective of this paper is to analyze the factors influencing the trend of population change in the Republic of North Macedonia. Material and methods: Data from the National Statistical Office and World Health Organization have been used. Literature review was conducted applying public health approach and descriptive method. Results: The natural population change in North Macedonia has negative trend in the last 10 years, the birth rate has declined, while the mortality is increasing. The biological factors and fertility rate have significantly influenced the birth rate, while the burden of chronic noncommunicable diseases, road injures, violence and COVID-19 are lead causes of mortality. Numerous factors indirectly affect the negative trend of population change such as the high rate of unemployment, poverty, socioeconomic and political context, migration and availability and quality of health care. Conclusion: А detailed analysis of the factors affecting the natural population change and an appropriate national response with the aim of reducing the negative trends is needed.
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    A novel id-iri score: development and internal validation of the multivariable community acquired sepsis clinical risk prediction model
    (Springer Science and Business Media LLC, 2020-04)
    Diktas, Husrev
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    Uysal, Serhat
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    Erdem, Hakan
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    Cag, Yasemin
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    Miftode, Egidia
    We aimed to develop a scoring system for predicting in-hospital mortality of community-acquired (CA) sepsis patients. This was a prospective, observational multicenter study performed to analyze CA sepsis among adult patients through ID-IRI (Infectious Diseases International Research Initiative) at 32 centers in 10 countries between December 1, 2015, and May 15, 2016. After baseline evaluation, we used univariate analysis at the second and logistic regression analysis at the third phase. In this prospective observational study, data of 373 cases with CA sepsis or septic shock were submitted from 32 referral centers in 10 countries. The median age was 68 (51-77) years, and 174 (46,6%) of the patients were females. The median hospitalization time of the patients was 15 (10-21) days. Overall mortality rate due to CA sepsis was 17.7% (n = 66). The possible predictors which have strong correlation and the variables that cause collinearity are acute oliguria, altered consciousness, persistent hypotension, fever, serum creatinine, age, and serum total protein. CAS (%) is a new scoring system and works in accordance with the parameters in third International Consensus Definitions for Sepsis and Septic Shock (Sepsis-3). The system has yielded successful results in terms of predicting mortality in CA sepsis patients.
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    Predictors of active cancer thromboembolic outcomes. RIETE experience of the Khorana score in cancer-associated thrombosis.
    (Thieme, 2017)
    Tafur AJ,
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    Caprini JA,
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    Cote L
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    Trujillo-Santos J
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    Del Toro J,
    Even though the Khorana risk score (KRS) has been validated to predict against the development of VTE among patients with cancer, it has a low positive predictive value. It is also unknown whether the score predicts outcomes in patients with cancer with established VTE. We selected a cohort of patients with active cancer from the RIETE (Registro Informatizado Enfermedad TromboEmbolica) registry to assess the prognostic value of the KRS at inception in predicting the likelihood of VTE recurrences, major bleeding and mortality during the course of anticoagulant therapy. We analysed 7948 consecutive patients with cancer-associated VTE. Of these, 2253 (28 %) scored 0 points, 4550 (57 %) 1-2 points and 1145 (14 %) scored ≥3 points. During the course of anticoagulation, amongst patient with low, moderate and high risk KRS, the rate of VTE recurrences was of 6.21 (95 %CI: 4.99-7.63), 11.2 (95 %CI: 9.91-12.7) and 19.4 (95 %CI: 15.4-24.1) events per 100 patient-years; the rate of major bleeding of 5.24 (95 %CI: 4.13-6.56), 10.3 (95 %CI: 9.02-11.7) and 19.4 (95 %CI: 15.4-24.1) bleeds per 100 patient-years and the mortality rate of 25.3 (95 %CI: 22.8-28.0), 58.5 (95 %CI: 55.5-61.7) and 120 (95 %CI: 110-131) deaths per 100 patient-years, respectively. The C-statistic was 0.53 (0.50-0.56) for recurrent VTE, 0.56 (95 %CI: 0.54-0.59) for major bleeding and 0.54 (95 %CI: 0.52-0.56) for death. In conclusion, most VTEs occur in patients with low or moderate risk scores. The KRS did not accurately predict VTE recurrence, major bleeding, or mortality among patients with cancer-associated thrombosis.
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    Clinical outcomes during anticoagulant therapy in fragile patients with venous thromboembolism.
    (2017)
    Moustafa F
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    Giorgi Pierfranceschi M
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    Di Micco P
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    Bucherini E
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    Lorenzo A
    Background Subgroup analyses from randomized trials suggested favorable results for the direct oral anticoagulants in fragile patients with venous thromboembolism (VTE). The frequency and natural history of fragile patients with VTE have not been studied yet. Objectives To compare the clinical characteristics, treatment and outcomes during the first 3 months of anticoagulation in fragile vs non‐fragile patients with VTE. Methods Retrospective study using consecutive patients enrolled in the RIETE (Registro Informatizado Enfermedad TromboEmbolica) registry. Fragile patients were defined as those having age ≥75 years, creatinine clearance (CrCl) levels ≤50 mL/min, and/or body weight ≤50 kg. Results From January 2013 to October 2016, 15 079 patients were recruited. Of these, 6260 (42%) were fragile: 37% were aged ≥75 years, 20% had CrCl levels ≤50 mL/min, and 3.6% weighed ≤50 kg. During the first 3 months of anticoagulant therapy, fragile patients had a lower risk of VTE recurrences (0.78% vs 1.4%; adjusted odds ratio [OR]: 0.52; 95% confidence intervals [CI]: 0.37‐0.74) and a higher risk of major bleeding (2.6% vs 1.4%; adjusted OR: 1.41; 95% CI: 1.10‐1.80), gastrointestinal bleeding (0.86% vs 0.35%; adjusted OR: 1.84; 95% CI: 1.16‐2.92), haematoma (0.51% vs 0.07%; adjusted OR: 5.05; 95% CI: 2.05‐12.4), all‐cause death (9.2% vs 3.5%; adjusted OR: 2.02; 95% CI: 1.75‐2.33), or fatal PE (0.85% vs 0.35%; adjusted OR: 1.77; 95% CI: 1.10‐2.85) than the non‐fragile. Conclusions In real life, 42% of VTE patients were fragile. During anticoagulation, they had fewer VTE recurrences and more major bleeding events than the non‐fragile.