Structural and serum surrogate markers of cerebrovascular disease in obstructive sleep apnea (OSA): association of mild OSA with early atherosclerosis.

There is increasing evidence of a causal interaction between obstructive sleep apnea (OSA) and cerebrovascular disease. The aim of the study was to elucidate the relationship between the polysomnographically (PSG) measured severity of OSA and carotid atherosclerosis determined by ultrasonography and serum surrogate markers. 147 patients (102 males, 45 females) referred to our sleep laboratory for evaluation of snoring and sleep-disordered breathing were investigated. Carotid atherosclerosis was evaluated by serum analysis of high-sensitivity C-reactive protein (hs-CRP) and fibrinogen and four sonographic indices: intima-media thickness (IMT) of the common carotid artery (CCA), IMT from bulb to internal carotid artery (Bulb-ICA), combined IMT measurements from all segments and a plaque score (PlaS). Pearson correlation analysis, intergroup comparison (ANOVA), covariance analysis and a multiple regression were performed to assess the association between surrogate markers and respiratory variables. 44 patients had no OSA (apnea-hypopnea index AHI < 5/h), 27 mild (AHI 5-15), 25 moderate (AHI 15-30) and 51 severe OSA (AHI > 30). After adjusting for potential confounders, significant differences between the controls and all three OSA groups were observed in the CCA-IMT (p = 0.032) and in the PlaS between the controls and the severe group (p = 0.034). Multiple regression revealed the AHI as an independent predictor of CCA-IMT (p = 0.001) and combined IMT (p = 0.001), whereas the percentage of total sleep time with an oxygen saturation below 90 % was associated with Bulb-ICA IMT (p = 0.018) and hs-CRP (p = 0.015). OSA is associated with higher surrogate levels of cerebrovascular disease. Even mild OSA seems to predispose to early atherosclerosis.

Empowering diabetes out-patients with structured education: short-term and long-term effects of functional insulin treatment on perceived control over diabetes.

OBJECTIVE: To investigate short-term and long-term effects of structured outpatient education for Functional Insulin Treatment (FIT: selective insulin dosages for eating, fasting or correcting hyperglycaemia) on perceived control over diabetes and related health beliefs. FIT was thought to influence the perception of self-efficacy in diabetes, in contrast to conventional treatment, based on scheduled, rigid food intake and insulin delivery--it allows flexible eating, provided independent control of glycemia. METHODS: Structured, comprehensive, outpatient group training in FIT for selective use of insulin either for eating, fasting or correction included practical "insulin games." The FIT program focused on everyday criteria for choices of insulin dosages and thus on the patient's ability to execute his/her newly gained flexible treatment to his/her everyday life while preventing acute and late complications. To evaluate effects of FIT on "Perceived Control over Diabetes" and related "Health Beliefs Concerning Diabetes" (Bradley's questionnaires, 1984), a fully randomized short-term controlled Study 1 (four weeks, 32 patients), and long-term uncontrolled pilot Study 2 (three years, 68 patients) were performed. RESULTS: The short-term study revealed that FIT induced the feeling of independence from situational control while self-managing diabetes. In the long-term study, the patients were increasingly freed from the feeling of being under the control of physician and treatment-related restrictions, which--together with higher perceived self-efficacy--contributed to the feeling of "empowerment." This was associated with high treatment satisfaction and significant improvement of glycemic control. CONCLUSION: Structured out-patient group training for FIT results in measurable improvement of patients' perceived control over diabetes and self-efficacy.

Dealing with ceiling baseline treatment satisfaction level in patients with diabetes under flexible, functional insulin treatment: assessment of improvements in treatment satisfaction with a new insulin analogue.

Even a small improvement in satisfaction with treatment for a chronic disease can be valuable. However, sensitive measurements instruments are needed to assess the effects of treatment changes in patients already well satisfied with baseline treatment. Such instruments were thought to be necessary to deal with ceiling effects in scores of satisfaction with functional insulin treatment (FIT) accommodating full flexibility of food intake and lifestyle in diabetes by manipulation of insulin (FIT; Howorka et al. 2000). The Status(S) version of the Diabetes Treatment Satisfaction Questionnaire (DTSQ, Bradley 1994) was extended with items measuring specific components of FIT and its psychometric properties investigated in a validation study with 171 FIT patients with diabetes. A new Change(C) version of DTSQ extended for FIT was used together with the DTSQ(S) by 52 participants in a subsequent randomised cross-over study involving new fast-acting lispro vs. regular insulin, where treatment satisfaction was the primary outcome variable. Insulin lispro use improved satisfaction (p < or = 0.001) both, on classical and extended versions of DTSQ(S) and (C), despite high baseline levels of satisfaction. However, the DTSQ(C) augmented the effects of lispro (p = 0.0001) apparent on DTSQ(S) scores and revealed significant treatment effects (p < or = 0.01) not significant with DTSQ(S). In parallel, glycaemic control improved with lispro (e.g., HbA1c, p = 0.023). Improved satisfaction with treatment was more apparent with DTSQ(C) than DTSQ(S) in patients who at baseline were at or near ceiling for treatment satisfaction.

[The disease coping of radiation cancer patients compared]. / Krankheitsbewältigung radioonkologischer Patienten im Vergleich.

Emotional well-being and physical complaints of 87 outpatients undergoing radiotherapy were compared with those of a variety of other patients. The emotional and physical status were assessed by a list of emotional symptoms (German: "Befindlichkeitsskala") [18] and a list of physical complaints (German: "Beschwerdeliste") [19]. Although they have to cope with a fair amount of physical strain, values of the "oncologic group" rank second lowest, outranked only by healthy controls. The results strengthen the hypothesis of an adaptive denial to cope with the strain of the treatment. In conclusion, concrete suggestions are made for the doctor-patient relationship.