Milan Blaha

Factors associated with weight changes in successful quitters participating in a smoking cessation program.

OBJECTIVE To identify possible predictors of post-cessation weight gain in smoking abstainers. PATIENTS AND METHODS A sample of 607 successful abstainers seen at the Centre for Tobacco-Dependent in Prague, Czech Republic, between 2005 and 2010, was included in this analysis. This sample was followed up for 1year and included 47.9% women (N=291) with the mean age of 48years (18-85). FINDINGS Post-cessation weight gain occurred in 88.6% of the 607 abstainers. The mean weight gain after one year post-quit was 5.1kg (95% confidence interval 4.7-5.5kg). Baseline characteristics associated with increased weight gain included a higher baseline smoking rate (p<0.001), more severe cigarette dependence (p=0.003), less physical activity (p=0.008), and a report of increased appetite on the baseline assessment of withdrawal symptoms (p<0.001). CONCLUSIONS Smokers who are more dependent and have minimal physical activity are at increased risk for post-cessation weight gain. For these smokers, incorporating interventions targeting the weight issue into tobacco dependence treatment is recommended. Further research should be done to identify reasons for this important quitting complication.

Tobacco Treatment Outcomes in Patients With and Without a History of Depression, Czech Republic, 2005-2010

Introduction Higher prevalence of smoking among depressed patients, as well as the risk of depression in smokers, is well documented. The proportion of patients with a history of depression among those seeking intensive treatment of tobacco dependence is also high. In contrast, evidence of treatment success in this subgroup of patients is controversial. The aim of this study was to compare smoking abstinence rates after tobacco treatment in smokers with and without a history of depression. Methods We reviewed retrospective data from 1,730 smokers seeking treatment in Prague, Czech Republic. History of depression was defined as past diagnosis of depression or current treatment of depression. After a 1-year, self-reported smoking status was validated by expired-air carbon monoxide. We used logistic regression to analyze associations between abstinence rates, history of depression, and other factors (eg, age, sex, tobacco dependence). Results Of 1,730 smokers treated, 289 (16.7%) had a history of depression. The smoking abstinence rate at 1 year was 32.5% for smokers with a history of depression and 38.7% for those with no history (P = .048). Among women, abstinence did not differ between groups (35.0% vs 35.7%; P = .86). However, among men, those with a history of depression had lower rates of abstinence (27.4% vs 41.3%; P = .009). After adjustment for baseline covariates, history of depression was not significantly associated with smoking abstinence in men or women. Conclusion Intensive outpatient tobacco treatment programs can achieve abstinence rates among smokers with a history of depression similar to rates among the general population.

Weight concerns associated with delay in quit date but not treatment outcomes: A Czech Republic Experience

Background Weight concerns are prevalent in smokers and may reduce the success rate of quitting. This concept has been primarily studied on US populations and it is unknown how weight concerns may differ cross-culturally. This study examined the role of weight concern in European smokers wishing to stop smoking. Methods A sample of 593 smokers (299 men and 294 women, mean age 38 years) utilizing the Centre for Tobacco-Dependent in Prague, Czech Republic, between 2010 and 2013 were studied. Weight concerns were assessed at baseline prior to treatment by evidence-based stop smoking methods. Abstinence was evaluated at 12 months post baseline. Results Approximately 34% of all patients (204/593) were classified as weight concerned (by indicating on the Weight Concern Scale that they would return to smoking after any weight gain) at the time they sought treatment. Among all men, 19.4% (58/299) were weight concerned and among all women, 49.7% (146/294) were weight concerned. Among females, weight-concerned smokers were of similar weight, but younger (p < .001), and had been smoking cigarettes for fewer years (p = .002) compared with those without weight concerns, whereas the male weight-concerned smokers were significantly (p = .030) heavier than those without weight concerns. Although the presence of weight concern was associated with a delay in setting a quit date (log-rank test p = .019), it was not associated with abstinence at one year. Conclusion The quit success rate of weight-concerned smokers in Czech Republic did not differ from those without weight concern when utilizing an individualized smoking cessation treatment program. Individually tailored tobacco dependence treatment could help to prevent weight concern from affecting successful quitting. Implications This study adds the new cross-cultural aspect of post-cessation weight concern. Weight concern has been studied primarily on US populations and our sample consists of European sample of smokers. Additionally, we have found that the presence of weight concern lead to delay in setting a quit date, but the success rate of those weight concerned did not differ from those without weight concern. Thus, it is possible, that this individualized evidence-based tobacco treatment program was able to prevent weight concern impact towards successful quitting.

Czech adolescent smokers: unhappy to smoke but unable to quit.

OBJECTIVE To assess the prevalence of tobacco dependence among adolescents in the Czech Republic in 2010, their willingness to quit and knowledge about quitting options. METHODS Primary, intermediate and secondary school students completed an anonymous questionnaire on tobacco use during a smoking prevention class, with a response rate of 100%. RESULTS Of 1420 anonymous questionnaires analysed, 66.8% (n = 949) of respondents had ever tried smoking. More were from smoking (50.4%) than non-smoking (49.6%) families; there were no differences in sex. Most student smokers had experimented with cigarettes (94.6%), cigars (8%), marihuana cigarettes (4.6%) and water pipes (1.9%). At the time of the survey, 52.9% (520/949) of those who had ever tried smoking were current smokers, 30.3% smoked daily, 18.3% weekly and 4.2% less frequently. Only 20.5% of smokers had not considered quitting, and 66.9% had tried unsuccessfully to quit. Withdrawal symptoms were experienced by 24.5% (123/502) of the current smokers, indicating a high level of nicotine dependence in this age group. The majority (346/467, 74.1%) of the current smokers said they would stop smoking immediately on their own. Only a few would seek help at a pharmacy (4.9%), 3.4% would ask their doctor and 1.7% their parents. CONCLUSIONS Tobacco dependence is prevalent among Czech adolescents. The majority of smokers wanted to stop, but knowledge about smoking cessation and quitting assistance offered to smokers was low.

Radial artery neointimal hyperplasia after transradial PCI-Serial optical coherence tomography volumetric study

Aims Transradial catheterization (TRC) is a dominant access site for coronary catheterization and percutaneous coronary interventions (PCI) in many centers. Previous studies reported higher intimal thickness of the radial artery (RA) wall in patients with a previous history of TRC. In this investigation the aim was to assess the intimal changes of RA using the optical coherence tomography (OCT) intravascular imaging in a serial manner. Methods and results 100 patients with the diagnosis of non-ST-elevation myocardial infarction (nSTEMI) treated by PCI were enrolled (6 patients were excluded from this analysis because of occluded RA at follow-up [2 patients] and insufficient quality of OCT images [4 patients]). An 54mm long OCT run of the RA was performed immediately after the index PCI and repeated 9 months later. Volumetric analyses of the intimal layer and lumen changes were conducted. Median intimal volume at baseline versus 9 months was 33.9mm3 (19.0; 69.4) versus 39.0mm3 (21.7; 72.6) (p<0.001); and median arterial lumen volume was 356.3mm3 (227.8; 645.3) versus 304.7mm3 (186.1; 582.7) (p<0.001). There was no significant difference in the effect of any clinical factor on the RA volume changes. Conclusions OCT volumetric analyses at baseline and 9 months showed a significant increase in the radial artery intimal layer volume and a decrease in lumen volume after transradial PCI. No significant factors affecting this process were identified.

Colorectal cancer in patients under the age of 40 years: experience from a tertiary care centre in the Czech Republic

Abstract Introduction: Colorectal cancer (CRC) in young patients is not an uncommon disease. Reports on its behaviour in young patients are conflicting. The aim of this study was to investigate patient and tumour characteristics, treatment and prognosis of this disease. Methods: Our study group comprised all patients under the age of 40 years treated with CRC at the Department of Surgery at Motol University Hospital in Prague between the years 2005 and 2015. Results: Thirty-eight patients under 40 years of age diagnosed with CRC were included in the study. Five patients had Lynch syndrome and six had first-degree relatives with CRC. There were 22 rectal tumours. All but four patients underwent resection of the primary tumour, all patients received chemotherapy and 13 patients received biological therapy. Disease recurrence occurred in 25.8%. Five-year survival was 47.9%. Advanced disease and adverse histological subtypes were identified as poor prognostic factors. Conclusions: Colorectal cancer in young patients has a high incidence of predisposing conditions, aggressive histological features and advanced disease. Young patients are of a good state of health and thus should receive aggressive therapy. Clinicians should pay more attention to symptoms of CRC in young patients to be able to initiate early treatment.

Performance indicators in a newly established organized cervical screening programme: registry-based analysis in the Czech Republic

In 2008, the organized Czech National Cervical Cancer Screening Programme (CNCCSP) was initiated by transformation of the existing opportunistic efforts. The aim of our study was to examine recent cervical cancer burden trends and to assess the quality of the Czech National Cervical Cancer Screening Programme using a set of standard performance indicators. Our study utilized data from the national Cervical Cancer Screening Registry and the Czech National Cancer Registry. We computed internationally accepted indicators and assessed time trends and variability among screening centres. Between 1995 and 2011, the incidence of age-standardized cervical cancer decreased by 21% (1023 cases in 2011), and the mortality decreased by 35% (399 deaths in 2011). The annual coverage of the target population by cervical screening increased to 56% in 2013 (as compared with 35% in 2001). If we consider a 2-year interval (2012–2013), the estimated coverage was 77%. Over two million women underwent screening in 2013; 96% of them had a negative result. About 0.2% of smears showed cytological signs of a high-grade intraepithelial lesion or a malignancy, and the estimated positive predictive value for advanced intraepithelial neoplasia (cervical intraepithelial neoplasia grade 2+) was 79.6%. However, performance indicators show considerable heterogeneity between screening centres. The reported values of performance indicators are in line with the results of programmes that have previously been shown to be successful in terms of decreasing the cervical cancer burden, and are promising with respect to an even more pronounced decrease in cervical cancer mortality in the near future, provided that continuous quality improvement can be maintained. Linkage studies between screening, cancer and cause-of-death registers can provide further information on screening effectiveness and validity issues.

Alternative access routes for transcatheter aortic valve implantation (TAVI)

Transkatetrova implantace aortalni chlopně (TAVI) je preferovanou metodou lecby u neoperabilnich anebo vysoce rizikových nemocných se zavažnou aortalni stenozou. Zakladni princip krimplovatelne bioprotezy a jeji implantace do stenoticke nativni chlopně zůstava neměnný, doslo vsak k vývoji několika rozdilných konceptů bioprotez i přistupových cest. Vsechny koncepty prokazaly svoji bezpecnost a ucinnost, existuji vsak limitovana data porovnavajici jednotlive chlopně ci přistupove cesty mezi sebou. Cilem clanku je poskytnout přehled o běžně použivaných přistupových cestach k TAVI a bliže je specifikovat.

TCT-547 Radial artery changes after transradial PCI – A serial optical coherence tomography volumetric study

Transradial catheterization (TRC) is a dominant access site for coronary catheterization and percutaneous coronary interventions (PCI) in many centers. Previous studies reported higher intimal thickness of the radial artery (RA) wall in patients with a previous history of TRC. In this investigation

[Cost analysis of radiotherapy provided in inpatient setting - testing potential predictors for a new prospective payment system].

BACKGROUND As a part of the development of a new prospective payment model for radiotherapy we analyzed data on costs of care provided by three comprehensive cancer centers in the Czech Republic. Our aim was to find a combination of variables (predictors) which could be used to sort hospitalization cases into groups according to their costs, with each group having the same reimbursement rate. We tested four variables as possible predictors -  number of fractions, stage of disease, radiotherapy technique and diagnostic group. METHODS We analyzed 7,440 hospitalization cases treated in three comprehensive cancer centers from 2007 to 2011. We acquired data from the I COP database developed by Institute of Biostatistics and Analyses of Masaryk University in cooperation with oncology centers that contains records from the National Oncological Registry along with data supplied by healthcare providers to insurance companies for the purpose of retrospective reimbursement. RESULTS When comparing the four variables mentioned above we found that number of fractions and radiotherapy technique were much stronger predictors than the other two variables. Stage of disease did not prove to be a relevant indicator of cost distinction. There were significant differences in costs among diagnostic groups but these were mostly driven by the technique of radiotherapy and the number of fractions. Within the diagnostic groups, the distribution of costs was too heterogeneous for the purpose of the new payment model. CONCLUSION The combination of number of fractions and radiotherapy technique appears to be the most appropriate cost predictors to be involved in the prospective payment model proposal. Further analysis is planned to test the predictive value of intention of radiotherapy in order to determine differences in costs between palliative and curative treatment.