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Tübingen, Germany

CD endocarditis is a potentially lethal complication after implantation of permanent pacemakers or implantable cardioverter-defibrillators. Complete extraction of the hardware along with antibiotic treatment is the standard therapy. However, there is no standard procedure in the treatment of lead-associated infective endocarditis with large thrombotic vegetations. The authors present the case of a 60-year-old patient with a large vegetation located on the right atrial lead. Due to a high surgical and thrombembolic risk, especially of acute massive pulmonary embolism, the patient received recombinant tissue plasminogen activator to dissolve the thrombus under echocardiographic monitoring. The thrombotic masses were substantially reduced after thrombolysis. Therefore, standard transvenous extraction of the leads could be performed and high risk cardiac re-operation could be avoided. Source

Feuerecker B.,TU Munich | Pirsig S.,TU Munich | Seidl C.,TU Munich | Aichler M.,Helmholtz Center Munich | And 3 more authors.
Cancer Biology and Therapy | Year: 2012

Cancer cells convert glucose preferentially to lactate even in the presence of oxygen (aerobic glycolysis-Warburg effect). New concepts in cancer treatment aim at inhibition of aerobic glycolysis. Pyruvate dehydrogenase converts pyruvate to acetylCoA thus preventing lactate formation. Therefore, the aim of this study was to evaluate compounds that could activate pyruvate dehydrogenase in cancer cells. We investigated the effects of (R)-(+)-α-lipoic acid (LPA ) and dichloroacetate (DCA), possible activators of pyruvate dehydrogenase, on suppression of aerobic glycolysis and induction of cell death. The neuroblastoma cell lines Kelly, SK-N-SH , Neuro-2a and the breast cancer cell line SkBr3 were incubated with different concentrations (0.1-30 mM) of LPA and DCA. The effects of both compounds on cell viability/proliferation (WST-1 assay), [18F]-FDG uptake, lactate production and induction of apoptosis (flow cytometric detection of caspase-3) were evaluated. Furthermore, NMRI nu/nu mice that had been inoculated s.c. with SkBr3 cells were treated daily for four weeks with LPA (i.p, 18.5 mg/kg) starting at day 7 p.i. Tumor development was measured with a sliding calliper and monitored via [18F]-FDG-PE T. Residual tumors after therapy were examined histopathologically. These data suggests that LPA can reduce (1) cell viability/proliferation, (2) uptake of [18F]-FDG and (3) lactate production and increase apoptosis in all investigated cell lines. In contrast, DCA was almost ineffective. In the mouse xenograft model with s.c. SkBr3 cells, daily treatment with LPA retarded tumor progression. Therefore, LPA seems to be a promising compound for cancer treatment. © 2012 Landes Bioscience. Source

Nielsen A.,Danish Cancer Society | Kjaer S.K.,Danish Cancer Society | Kjaer S.K.,Copenhagen University | Munk C.,Danish Cancer Society | And 2 more authors.
Journal of Medical Virology | Year: 2010

Persisting human papillomavirus (HPV) infection is a critical step in cervical carcinogenesis. This study was conducted to determine the type-specific HPV persistence and risk factors for persistence of high-risk HPV infections in a large cohort of Danish women. The study was based on a population-based prospective cohort study of women aged 20-29 years. Participants were interviewed and underwent two gynecological examinations 2 years apart. Women with Hybrid Capture 2 results at enrolment and a follow-up visit were included in the analysis (n=7,418). Persistence was defined as positivity for the same high-risk HPV type at both examinations. Overall, 4.2% of the women had persistent HPV infection, accounting for 26.9% of the initially HPV-positivewomen.HPV 16,HPV 58, and HPV31, all from species group alpha 9, were the most persistent types; however, other high-risk HPV types that are detected rarely in cancer cases were also likely to persist. The number of high-risk HPV types and detection of HPV 16 infection at baseline and ever use of oral contraceptives increased the risk for persistence. The risk factor analyses also showed that use of an intrauterine device decreased the risk for persistent high-risk HPV infection among women with one high-risk HPV type at baseline. No association was found with viral load or smoking. In conclusion, persistent high-risk HPV infection, especially HPV 16 persistence, was common among women positive for high-risk HPV. © 2010 Wiley-Liss, Inc. Source

Rothermund E.,University of Ulm | Kilian R.,University of Ulm | Hoelzer M.,Sonnenbergklinik | Mayer D.,Daimler AG | And 4 more authors.
BMC Public Health | Year: 2012

Background: Mental health issues are gaining in importance in society and the economic system. At the same time, the accessibility and stigmatisation of the mental health care system in Germany can obstruct help-seeking behavior and delay early psychotherapeutic interventions. Therefore, new models of care are being established at the interface of company-supported health promotion and conventional health insurance sponsored outpatient care for people developing mental illnesses. Two large industrial companies, in cooperation with two psychosomatic clinics, have recently established a model of psychosomatic consultation in the workplace. This new model of care offers the opportunity for a first psychotherapeutic door to door consultation with occupational medicine within the industrial workplace. The main empirical goals of this study are:.1) Describing the differences between patients who use this new diagnostic and therapeutic offer within the industrial workplace vs. patients who visit a conventional regional outpatient clinic, especially in regard to symptom duration and severity, work ability, and demographic characteristics, and.2) A first evaluation of how patients may benefit more from this new model of care compared to those first seen by standard outpatient care.In the qualitative part of the study, occupational physicians, psychosomatic therapists, involved personnel and select employees of the involved companies will be asked to comment on their experiences with this new approach. Methods/Design. The implementation study will take place in Ulm and in Stuttgart, with each site looking at one regional conventional psychosomatic outpatient clinic and one psychosomatic consultation offer within the workplace. 70 consecutive patients in each setting will be recruited (overall n=280). For the cross-sectional study and pre-post comparison we will use established and validated survey instruments (PHQ, SF-12, WAI, MBI, IS) as well as standardized questions about health care use. For data analysis, we will use uni- and multivariate analytical methods. Qualitative data analysis (expert interviews) will be carried out using Mayrings content analysis method. Discussion. The results of this study have the potential to provide evidence-based knowledge about an innovative model of psychotherapeutic outpatient care and to further promote tailored solutions for early psychotherapeutic interventions within the worksite. Trial Registration. DRKS00003184. © 2012 Rothermund et al.; licensee BioMed Central Ltd. Source

Petry K.U.,Zentrum fur Frauenheilkunde | Rinnau F.,Zentrum fur Frauenheilkunde | Bohmer G.,Zentrum fur Frauenheilkunde | Hollwitz B.,Zentrum fur Frauenheilkunde | And 4 more authors.
BMC Cancer | Year: 2013

Background: Primary human papilloma virus (HPV) screening is more effective than cytology in reducing the risk of cervical cancer, but screening intervals should be extended in HPV-negative women. However, some Markov models predicted that long intervals are associated with an excess risk of cervical cancer. The aim of this analysis was to estimate the real-life risks and benefits of annual Papanicolaou (Pap) screening in HPV-negative women with normal cytology.Methods: Women with negative Hybrid Capture 2 (HC2) results and normal cytology at the time of inclusion in the Hannover HPV screening trial underwent annual Pap smears for 5 years. A subgroup was randomly selected for retesting with cytology, HC2, and colposcopy 60-68 months after recruitment.Results: Of 4236 women included, 3406 had at least one Pap smear, but only 1185 attended all five annual screening visits. The proportion of women with at least one abnormal smear was 14.4% in 60 months. The probability of abnormal smears increased continuously over time. No case of ≥ CIN2+ was observed during 5 years. Of 605 women selected for subgroup analysis, 292 agreed to be retested (48.3%). The rate of high-risk HPV at 60-68 months was 3.0% (9/296).Conclusions: The long-term risk of high-grade neoplasia after an initial negative HC2 test and normal cytology result was low, while the rate of false-positive abnormal Pap smears was significant and increased constantly over time. Pap smear screening of HPV-negative women more frequently than every 5 years could be potentially harmful and seems to be of little clinical value. © 2013 Petry et al.; licensee BioMed Central Ltd. Source

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