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1.
Gastric banding outcomes are better if patients participate in the support group
Brane Breznikar, Dejan Dinevski, Gregor Kunst, Barbara Rožej, 2012, izvirni znanstveni članek

Opis: Introduction: We analyzed our first five years of performing gastric bandings.We monitored weight reduction in patients with regard to their participation in the support group. Based on our experience, gastric banding is successful only with thorough assessment and treatment before surgery, as well as methodical, professional support after it. Those who participated in the support group more often had a greater weight reduction than those who were present less frequently. Patients and methods: We performed 264 gastric bandings between May 2005 and May 2010 (66.5% of all bariatric procedures). Onaverage, patients were 41.0 years old and had a BMI of 42.4 kg/m2. There were 224 female (84.8%) and 40 male patients (15.2%). We followed 192 patientsfor more than one year. 155 patients (80.7%) were evaluated with BAROS. We excluded patients with hormonal disorders and other pathologies preoperatively. Because gastric banding is not suitable for every patient, we made a thorough psychological evaluation of the patients before the procedure.We offered preoperative and postoperative psychological and dietary support when needed. Results: Patients lost on average 23.4 kg, 31.4 kg and 33.7 kg after the 1st, 2nd and 3rd year, respectively (EWL average of 50.3%, 65.6% and 69.8%, respectively). We monitored the resolution of comorbidities and complications. Both the "comorbidity" and "without comorbidity" groups achieved a grade of "good" on the BAROS quality of life scale (4.85 and 2.64 respectively). Given the Pearson coefficient of r = 0.58 (p < 0.001), we concluded that there is a "moderate to strong" correlation between the number of visits in the support group and EWL. Conclusions: Weight reduction is greater when patients participate in the support group after bariatric surgery.
Ključne besede: bariatric surgery, morbid obesity, gastric banding, support group, comorbidities
Objavljeno: 10.07.2015; Ogledov: 457; Prenosov: 33
.pdf Celotno besedilo (587,06 KB)
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2.
Želodčni obvod
Brane Breznikar, Dejan Dinevski, Marjan Skalicky, 2010, pregledni znanstveni članek

Ključne besede: bariatric surgery, morbid obesity, gastric bypass, comorbidities
Objavljeno: 10.07.2015; Ogledov: 663; Prenosov: 13
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3.
Comprehensible predictive modeling using regularized logistic regression and comorbidity based features
Gregor Štiglic, Petra Povalej Bržan, Nino Fijačko, Fei Wang, Alexandros Kalousis, Boris Delibašić, Zoran Obradović, 2015, izvirni znanstveni članek

Opis: Different studies have demonstrated the importance of comorbidities to better understand the origin and evolution of medical complications. This study focuses on improvement of the predictive model interpretability based on simple logical features representing comorbidities. We use group lasso based feature interaction discovery followed by a post-processing step, where simple logic terms are added. In the final step, we reduce the feature set by applying lasso logistic regression to obtain a compact set of non-zero coefficients that represent a more comprehensible predictive model. The effectiveness of the proposed approach was demonstrated on a pediatric hospital discharge dataset that was used to build a readmission risk estimation model. The evaluation of the proposed method demonstrates a reduction of the initial set of features in a regression model by 72%, with a slight improvement in the Area Under the ROC Curve metric from 0.763 (95% CI: 0.755%0.771) to 0.769 (95% CI: 0.761%0.777). Additionally, our results show improvement in comprehensibility of the final predictive model using simple comorbidity based terms for logistic regression.
Ključne besede: predictive models, logistic regression, readmission classification, comorbidities
Objavljeno: 19.06.2017; Ogledov: 384; Prenosov: 203
.pdf Celotno besedilo (1,13 MB)
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4.
Comorbidities and characteristics of coronary heart disease patients: their impact on health-related quality of life
Ksenija Tušek-Bunc, Davorina Petek, 2016, izvirni znanstveni članek

Opis: Background: Patients with coronary heart disease (CHD) commonly present with more than one comorbid condition, contributing to poorer health-related quality of life (HRQoL). The aim of our study was to identify the associations between HRQoL and patient characteristics, vascular comorbidities and anxiety/depression disorders. Methods: This observational study was conducted in 36 family medicine practices selected by random stratified sampling from all regions of Slovenia. HRQoL was assessed using the European Quality of Life - 5 Dimensions (EQ-5D) questionnaire and EQ Visual Analogue Scale (EQ-VAS). The associations between HRQoL and patient characteristics stratified by demographics, vascular comorbidities, health services used, their assessment of chronic illness care, and anxiety/depression disorders were identified by ordinal logistic regression and linear regression models. Results: The final sample included 423 CHD patients with a mean age of 68.0 ± SD 10.8 years; 35.2% were female. Mean EQ-VAS score was 58.6 ± SD 19.9 (median: 60 with interquartile range of 45–75), and mean EQ-5D index was 0.60 ± SD 0.19 (median: 0.56 with interquartile range of 0.41–0.76). The statistically significant predictors of a lower EQ-VAS score were higher family physician visit frequency, heart failure (HF) and anxiety/depression disorders (R² 0.240; F = 17.368; p < 0.001). The statistically significant predictor of better HRQoL, according to EQ-5D was higher patient education, whereas higher family physician visit frequency, HF and peripheral artery disease (PAD) were predictors of poorer HRQoL (Nagelkerke R 2 = 0.298; χ 2 = 148.151; p < 0.001). Conclusions: Results of our study reveal that comorbid conditions (HF and PAD), family physician visit frequency and years in education are significant predictors of HRQoL in Slovenian CHD patients.
Ključne besede: coronary heart disease patient, health-related quality of life, vascular comorbidities, anxiety/depression disorders
Objavljeno: 29.06.2017; Ogledov: 434; Prenosov: 232
.pdf Celotno besedilo (407,23 KB)
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