Re-irradiation for recurrent glioblastoma multiforme: a critical comparison of different concepts.

PURPOSE: Purpose of this study was to investigate outcome and toxicity of re-irradiation for recurrent primary glioblastoma (rGBM). We evaluated a group of patients with rGBM and identical primary treatment comprising adjuvant radiotherapy (30â€¯× 2 Gy) with concurrent temozolomide (TMZ). METHODS: In this retrospective study of 46 patients, all received adjuvant or definitive normofractionated radiotherapy to a pretreated area, some with concurrent chemotherapy. Impact of different clinical, histological, or epidemiological factors on survival and radiation toxicity was reviewed. RESULTS: Of 46 patients, 40 completed the intended therapy. Overall survival (OS) was 20 months (range 6-72 months). Overall survival and progression-free survival after re-irradiation (OS2 and PFS2) were 9.5 and 3.4 months (range 2-40 and 0.7-44 months). Simultaneous systemic therapy improved PFS2 and OS2 (4.3 vs. 2.0, p < 0.001 and 12 vs. 4 months, p = 0.13, respectively). Therapy with TMZ or bevacizumab improved PFS2 vs. nitrosureas (6.6 vs. 2.9, p = 0.03 and 5.1 vs. 2.9 months, p = 0.035, respectively). TMZ also improved PFS2 and OS2 vs. all other systemic therapies (6.6 vs. 4, p < 0.001 and 17 vs. 10 months, p = 0.1). In a subgroup analysis for patients with methylation of the MGMT promoter, doses of >36 Gy as well as TMZ vs. no systemic therapy improved PFS2 (p = 0.045 and p = 0.03, respectively). 27.5% of all patients had no acute toxicity. Three patients with acute and four patients with late grade 3 toxicities were reported. CONCLUSION: Normofractionated radiotherapy is a feasible option for rGBM with a good toxicity profile. Simultaneously applied systemic therapy was associated with improved outcome. For MGMT promoter-methylated histology, higher radiation doses improved survival.

[Recognition and correct classification of pressure ulcers: a position paper]. / Dekubitus erkennen und richtig klassifizieren: ein Positionspapier.

BACKGROUND: Pressure ulcers comprise serious skin and tissue damage. The correct diagnosis and classification into different categories is often difficult in daily practice. QUESTION: What procedure can be recommended to correctly diagnose and classify pressure ulcers in practice? MATERIALS AND METHODS: The society Initiative Chronische Wunden (ICW) e. V. established a group of experts who developed practical recommendations for the diagnosis and classification of pressure ulcers based on the current literature and their own expertise. RESULTS: Pressure ulcers should only be diagnosed if skin and/or tissue damage is most likely due to prolonged pressure or pressure associated with shear forces. A complete anamnesis must be performed to detect periods of previous prolonged immobility. Pressure ulcers are usually located at typical predilection sites. For category I and "suspected deep tissue damage" the tissue damage occurs under (initially) intact skin. However, the diagnosis is uncertain and the classification should be made later. The category II pressure ulcer is usually an exclusion diagnosis. The categories III and IV are pressure ulcers in the proper sense. As long as the distinction between category III and IV is not possible, the lower category should be coded. CONCLUSIONS: Currently, a relevant classification should be used uniformly for the respective setting. In accordance with the clinical picture, a most suitable diagnosis is to be made. It does not matter which classification system is used. The future WHO ICD-11 version will allow better classification of pressure ulcers.

[Compression therapy of chronic leg ulcers : Practical aspects]. / Kompressionstherapie des chronischen Ulcus cruris : Praxisrelevante Aspekte.

Compression therapy, together with modern moist wound treatment, is the basis for a successful conservative treatment of patients with chronic leg ulcers. In clinical practice, it is often the patients themselves who apply compression therapies. Many of the mostly elderly patients, however, are not able to reach their legs and feet due to movement restrictions, such as arthritis, arthrosis and even obesity. An adequate compression therapy also requires extensive experience and regular training. In practice only the minority of patients can perform bandaging well and therefore this should not be recommended. Self-management with do-it-yourself medical devices will become more and more important in the future. In addition to the psychological factors, cost aspects and demographic change, an expected lack of qualified nursing staff due to the number of elderly patients who are potentially in need of care means that self-management is becoming increasingly more important. For the essentially important compression therapy of patients with chronic leg ulcers, there already exist various therapy options. The needs, preferences and abilities of the patients concerned can be considered when selecting the appropriate system. Particularly for the self-management of compression therapy, adaptive compression bandages are suitable for patients with leg ulcers during the initial decompression phase and ulcer stocking systems in the subsequent maintenance phase.

Disproportional increase of pulmonary embolism in young females in Germany: trends from 2005 to 2014.

We analysed the number of pulmonary embolism (PE) in young females aged 10-39 years in the period from 2005 to 2014 in Germany to see any trends that possibly may reflect some influences of newer oral contraceptives. Detailed lists of all hospitalized cases with the principal diagnosis PE coded as I26 in the years 2005-2014 were provided by the Federal Statistical Office. In males, the absolute number of all hospitalized cases with the principal diagnosis PE increased from 16,066 in 2005 to 25,364 in 2014 (rate +57.8%) and in females from 21,548 to 29,433 (rate +36.5%). The annual differences in PE between males and females decreased from 5482 to 4069 (-26%) in this period. In the age group of 10-39 years the absolute number of all hospitalized male cases increased from 1023 in 2005 to 1276 in 2014 (+24.7%) and in females from 1341 to 1949 (rate +45.3%). Thus in contrast to the overall trend the annual difference in PE rose gradually by 112% (from 318 to 673) from 2005 to 2014. Our ecologic nationwide analysis of hospitalization rates for PE shows that the annual differences between males and females cases hospitalized with the principal diagnosis PE in general decreased, but increased in the age group of 10-39 years in the last decade.

Analysis of the German DRG data for livedoid vasculopathy and calciphylaxis.

BACKGROUND: Livedoid vasculopathy and calciphylaxis are rare skin disorders. Large cohorts of patients have been missing so far for detailed analysis. PATIENTS AND METHODS: Data from diagnosis-related groups (DRGs) of hospitalized cases of livedoid vasculopathy (ntotal = 1357) and calciphylaxis (ntotal = 699) were analysed for the years 2008-2013 concerning sex, age and frequency of diagnosis. To avoid deviations to non-relevant secondary diagnosis and due to changes in ICD-10 indices, we selected the two most recent available years 2013 and 2014 for evaluation of the accompanying diagnoses for both, livedoid vasculopathy (n = 519) and calciphylaxis (n = 324). Those were additionally evaluated as possible comorbidity. RESULTS: The male-female ratio for livedoid vasculopathy was 2.1:1. Patients older than 45 years comprehended 74.7% of all patients with peaks between the ages of 45-50 and 70-75. Livedoid vasculopathy patients suffered from cardiovascular and renal diseases. Coding of coagulation disorders was found rarely in our analysis. For calciphylaxis, we calculated a male-female ratio of 1.7:1. Most of the patients were at an age between 65 and 80 years. Diagnosis at an age under 35 years was rare. In general, most calciphylaxis patients showed end-stage renal disease with need of dialysis and presented with the resulting complications. CONCLUSIONS: Our data analysis shows relevant comorbidity and cofactors of these rare diseases like livedoid vasculopathy and calciphylaxis in Germany by a large number of cases.

Diagnosis and treatment of chronic wounds: current standards of Germany's Initiative for Chronic Wounds e. V.

The diagnosis and treatment of patients with chronic wounds is an enormous challenge in various disciplines of medicine. These very complex processes usually involve several experts of different medical specialties with varying educational backgrounds. A necessary basis for consistent communication and documentation is the use of unambiguous nomenclature. Therefore, the board of the German wound association, Initiative for Chronic Wounds (ICW) e.V., has started to define various terms and procedures. An easy to remember algorithm, in the form of the ABCDE rule, has been developed for the structured diagnosis of chronic wounds. The successful therapy of chronic wounds is then based on the causal treatment of the underlying, pathophysiological relevant diseases. M.O.I.S.T. a concept which helps health professionals in the systematic approach to the local treatment of patients with chronic wounds, in conforming to the most up-to-date scientific knowledge. By using consistent definitions and standards in wound care, it is possible to optimise current diagnostic and treatment strategies as well as to make them more easily understandable.

[Compression therapy in leg ulcers]. / Kompressionstherapie des Ulcus cruris.

Compression therapy is well-tried treatment with only few side effects for most patients with leg ulcers and/or edema. Despite the very long tradition in German-speaking countries and good evidence for compression therapy in different indications, recent scientific findings indicate that the current situation in Germany is unsatisfactory. Today, compression therapy can be performed with very different materials and systems. In addition to the traditional bandaging with Unna Boot, short-stretch, long-stretch, or multicomponent bandage systems, medical compression ulcer stockings are available. Other very effective but far less common alternatives are velcro wrap systems. When planning compression therapy, it is also important to consider donning devices with the patient. In addition to compression therapy, intermittent pneumatic compression therapy can be used. Through these various treatment options, it is now possible to develop an individually accepted, geared to the needs of the patients, and functional therapy strategy for nearly all patients with leg ulcers.

Topical oxygen wound therapies for chronic wounds: a review.

UNLABELLED: Chronic wounds are an increasing problem in our ageing population and can arise in many different ways. Over the past decades it has become evident that sufficient oxygen supply is an essential factor of appropriate wound healing. Sustained oxygen deficit has a detrimental impact on wound healing, especially for patients with chronic wounds. This has been proven for wounds associated with peripheral arterial occlusive disease (PAOD) and diabetic foot ulcers (particularly in combination with PAOD). However, this is still under debate for other primary diseases. In the past few years several different new therapeutic approaches for topical oxygen therapies have been developed to support wound healing. These tend to fall into one of four categories: (1) delivery of pure oxygen either under pressurised or (2) ambient condition, (3) chemical release of oxygen via an enzymatic reaction or (4) increase of oxygen by facilitated diffusion using oxygen binding and releasing molecules. In this review article, the available therapeutic topical oxygen-delivering approaches and their impact on wound healing are presented and critically discussed. A summary of clinical data, daily treatment recommendations and practicability is provided. DECLARATION OF INTEREST: J. Dissemond received an honorarium for lectures, advisory boards and/or clinical studies from the following companies: 3M, B. Braun, BSN, Coloplast, Convatec, Draco, Hartmann, KCI, Lohmann&Rauscher, Medoderm, Merz, Sastomed, Systagenix, UCB-Pharma, Urgo. K. Kröger received an honorarium for lectures, advisory boards and/or clinical studies from the following companies: Bayer, Sanofi, GSK, Hartmann, Sastomed, UCB-Pharma, Urgo. M. Storck received an honorarium for lectures for the following companies: KCI, Systagenix, and UCB-Pharma. A. Risse received an honorarium for lectures, advisory boards and/or clinical studies from the following companies: Bracco, Coloplast, Draco, Lilly Deutschland, NovoNordisk, Sastomed, Urgo. P. Engels received an honorarium for lectures, and consulting from the following companies: Sastomed, Oculus.

Venous thromboembolism in Germany: results of the GermAn VTE registry (GATE-registry).

BACKGROUND: Despite the existence of active prophylaxis strategies for patients at risk of venous thromboembolism (VTE), people still suffer from this disease. To establish the setting in which VTE occurs and how it can be prevented, a study was conducted aimed at analysing the circumstances surrounding VTE development. PATIENTS AND METHODS: In a nationwide study, 629 patients (54% female) with acute deep vein thrombosis (DVT) or pulmonary embolism (PE) were recruited consecutively at 17 centres (78.4% with DVT, 5.1% with PE, 16.5% with both). The physicians completed a standardised questionnaire together with the patients on the day the diagnosis was made, or a few days later. The following items were included: general information, circumstances that could increases VTE risk within the previous 6 weeks, action taken to prevent VTE within the previous 6 weeks, specific VTE risk factors. Patients were defined as being 'in a medical setting' if they had had contact with a physician within the 6-week period prior to VTE diagnosis. RESULTS: A total of 286 (45.5%) patients were classified in a medical setting, but 343 (54.5%) patients were not. Of those who were not in a medical setting within the last six weeks, 12.0% had returned from a journey and 15.5% had restricted mobility. Of those within a medical setting, only 80 (28.0%) patients had received heparin as prophylaxis. Thus, the largest group of patients with VTE today is not within a medical setting. The next largest group of patients were in a medical setting but received no heparin as prophylaxis. Those with a failed or inadequate use of prophylaxis represented the smallest group. DISCUSSION: More than 50% of those who have acute VTE are not being reached by our present day VTE prophylaxis strategies.

[Innovative wound care--new studies to increase evidence]. / Innovative Wundversorgung--neue Studien zur Evidenzsteigerung.

BACKGROUND: Today numerous products for wound care are available. A research-based evidence on which the clinician can base its selection, is still missing. In the guidelines randomized controlled trials (RCTs) have been left out. METHOD: In the overview three current RCT with products for the treatment of chronically venous ulcers will be presented. RESULTS AND CONCLUSIONS: The pre-mentioned studies show, that it is possible to provide a basis for evidence-based treatment in wound healing. The effective value ofa wound treatment based on the costs and benefits must be defined by the health system. But products, for which data from randomized trials exist, should be evaluated in a different way to products, for which there are no such data.

Endovascular abdominal aneurysm repair: trends in Germany.

BACKGROUND: As a minimally invasive technique endovascular aneurysm repair (EVAR) reduces the risk of mortality and should be the preferred technique used in older patients. We analysed trends in endovascular and open surgical procedures in patients hospitalized for abdominal aortic aneurysm (AAA) in Germany. PATIENTS AND METHODS: We used national statistics (DRG statistics) published by the Federal Office of Statistics in Germany to calculate the incidence of patients hospitalised with ruptured (rAAA) and elective (eAAA) AAA. In addition, annual procedure rates of endovascular (EVAR) procedures were calculated. RESULTS: Incidence rates of eAAA per 100,000 males (females) showed a small increase from 2006 to 2007 but remained almost unchanged with 74.8 (8.8) in 2007 and 74.5 (9.8) in 2009. Incidence rates of rAAA per 100 000 males remained unchanged but showed a decreasing trend in females. The rate of people treated by EVAR increased form 2006 to 2009: in males from 24.0 % to 40.3 % and in females from 17.3 % to 31.0 %. In younger males (55 - 60 years) the increase in those who received EVAR was smaller (from 22.1 % to 33.9 %) than in older males (85 - 90 years) (from 20.4 to 41.6 %). Despite a clear increase in the use of EVAR from 2006 to 2009 there is only a small trend in reduction of the death rates which is more pronounced in rAAA. CONCLUSIONS: There has been a relevant increase in EVAR procedures for the treatment of AAA in Germany in recent years. Parallel to this increase of EVAR, aneurysm-related in-hospital deaths seem be declining slightly. A causal relationship between these trends remains to be proven.

Trends in lower extremity surgical and endovascular revascularization in Germany.

BACKGROUND: We analyzed trends in lower extremity endovascular and open surgical procedures in hospitalized patients in Germany. PATIENTS AND METHODS: We used national statistics (DRG statistics) published by the Federal Statistical Office including data from almost all hospitals in Germany to calculate annual procedure rates of lower extremity endovascular and open surgical procedures in the years 2005 to 2008. Detailed lists of the OPS-codes 8 - 836, 5 - 381, 5 - 393 separated by the 6th number of the code were analyzed regarding procedures representing revascularization of peripheral arteries including the aorta. RESULTS: Between 2005 and 2008 the total number of endovascular procedures increased from 73,584 to 98,664 and the number of surgical procedures from 74,789 to 86,172 a year. Age-adjusted incidence rates of endovascular procedures in people >= 65 years increased from 325 to 432 per 100,000 while the incidence rates of all open surgical procedures increased from 315 to 351 per 100.000. Looking only at bypass surgery the incidence remained unchanged with 177 and 176 per 100,000 in the same period. Endovascular procedures other than balloon angioplasty including percutaneous atherectomy, laser recanalization or usage of cutting balloon, account for less than 1 % in Germany. CONCLUSIONS: The numbers of endovascular procedures overweigh the numbers of open surgical procedures for treatment of lower extremity PAD in Germany today. In contrast to data from the USA we could not demonstrate a decrease of open surgical procedures in Germany in recent years.

Trends in amputations in people with hospital admissions for peripheral arterial disease in Germany.

BACKGROUND: Using the information of the federal statistics, a detailed description of the hospitalisation rate for amputation in Germany was possible for the first time, and trends since 2005 can be reported. PATIENTS AND METHODS: Detailed lists of all amputations coded as minor amputations (OPS 5 - 864) and major amputations (OPS 5 - 865) performed in 2005 and 2008, divided into the 4th and 5th number of the OPS-code, were provided by the Federal Statistical Office. RESULTS: Despite an increase in total number of hospitalized patients suffering from peripheral arterial disease and neurovascular disease there is a relevant decrease in age adjusted major amputation rates per 100.000 population in Germany from 27.0 in 2005 to 25.1 in 2008 in males and from 19.7 in 2005 to 17.1 in 2008 in females. Overall minor amputation rates do not show such a decrease but increased in males (from 47.4 in 2005 to 53.7 in 2008) und remained unchanged in females (23.1 in 2005 and 23.1 in 2008). In the 6th and 7th decade of life males have approximately four times higher major and minor amputation rates than females. CONCLUSIONS: Hospitalisation rate for major amputation in Germany decreased in the recent years whereas hospitalisation rate for minor amputation did not.

Incidence rate of pulmonary embolism in Germany: data from the federal statistical office.

With the introduction of Diagnosis Related Groups (DRG) for reimbursement in 2003 detailed description of the prevalence of pulmonary embolism (PE) in hospitalized patients in Germany was possible for the first time. Thus we estimated the incidence rate of PE in Germany. Detailed lists of all PE coded as I26 performed in 2005, 2006 and 2007 were provided by the Federal Statistical Office. In addition age- and gender-adjusted incidence rates were calculated for all cases for which PEs were coded. In 2005 a total of 67,351, in 2006 a total of 69,234 and in 2007 a total of 71,223 PEs (I26.0) were coded either as principal or secondary diagnosis in German hospitals. 54-57% of all PEs were coded as principal diagnosis. Age- and gender adjusted incidence of PEs raised with increasing ages and were higher in males aged 30-49 and 50-69 years than in females within the same age groups. Up to 60% of all PE documented in females occurred within the 8th and 9th decade of life. Departments of Geriatric Medicine, Haematology and Oncology and Pneumology had the highest rates of intrahospital PEs documented as secondary diagnosis. The presented data are derived from the most reliable data base for the estimation of PE in Germany, and the analysis shows that PE is still a relevant problem. They do not give any information about the individual settings and preventability of PEs. An accompanying analysis of hospital and pre-hospital settings is mandatory to recognize possible strategies to prevent PEs more effectively.

Management of patients with peripheral arterial disease in primary care: a cross-sectional study in Germany.

BACKGROUND: Studies in the primary care setting are of high interest for assessing the management situation of patients with manifestations of atherothrombosis. AIMS: Therefore, we documented diagnostic procedures, characteristics, and management of patients with symptomatic and asymptomatic peripheral arterial disease (PAD). MATERIALS & METHODS: Prospective cross-sectional study in primary care practices throughout Germany. RESULTS: A total of 671 patients with newly diagnosed PAD were included (mean age 69.1 years; 62.1% men). Cardiovascular risk factors were highly prevalent in the total PAD group: arterial hypertension in 84.2%, hyperlipidaemia in 75.5%, present smoking in 45.0% and diabetes mellitus in 47.3%. Atherothrombotic comorbidities were also frequent: coronary artery disease in 44.9% and cerebrovascular disease in 28.1%. For confirmation of diagnosis, patients were referred to specialists in 66.9% of cases. Overall, ankle brachial index was measured in 89.0%, and a clinical PAD score assessed in 66.6% (agreement of both measures with Cohen's kappa only, kappa = 0.039; p = 0.209). Drug treatment of risk factors (as secondary prophylaxis) in line with current guidelines was reported in a high percentage of patients: 88.6% with any antiplatelet drug, 69.3% with statins, 62.4% with angiotensin converting enzyme inhibitors, 23.5% with AT(1) receptor blockers and 43.9% with beta-blockers. Between asymptomatic and symptomatic PAD, differences in the risk factor/comorbidity profiles were small; however, the latter group received intensified treatment. CONCLUSION: Our findings confirm that patients with PAD pose a substantial challenge to physicians because of their high number of comorbidities. Compared with previous studies, management of such patients appears to have improved.

[Risks of the stay at home policy during the COVID-19 pandemic]. / Risiken der "Stay at home"-Politik im Rahmen der COVID-19-Pandemie.

The measures to control the COVID-19 pandemic have far-reaching sequelae for the German healthcare system and our citizens. Since the implementation of the pandemic measures with a nationwide lockdown on 22 March 2020, so far some relevant aspects have already been described. This overview article gives a more detailed description of some aspects relevant for vascular medicine, e.g. emergency treatment, increase of the cardiovascular risk due to social distancing and the risk of venous thromboembolisms.