151
|
Czihal M, Tatò F, Förster S, Rademacher A, Schulze-Koops H, Hoffmann U. Fever of unknown origin as initial manifestation of large vessel giant cell arteritis: diagnosis by colour-coded sonography and 18-FDG-PET. Clin Exp Rheumatol 2010; 28:549-552. [PMID: 20659410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2010] [Accepted: 04/20/2010] [Indexed: 05/29/2023]
Abstract
OBJECTIVES To evaluate the clinical characteristics and imaging results (CDS, 18-FDG-PET) of patients with large vessel giant cell arteritis (LV-GCA) presenting as fever of unknown origin (FUO). METHODS From a series of 82 patients with GCA we identified 8 patients with FUO as initial disease manifestation. Clinical characteristics and results of CDS and 18-FDG-PET were analysed. Patients with FUO and those with other clinical manifestations of GCA were compared. RESULTS 18-FDG-PET-scans were available for 6/8 patients, revealing enhanced tracer uptake of the thoracic aorta and the aortic branches in all patients. CDS was performed in 8/8 patients, with detection of hypoechogenic wall thickening related to LV-GCA in 7/8 patients. Subjects with FUO were significantly younger (60.9 vs. 69.3 years, p<0.01) and had a stronger humoral inflammatory response (CRP 12.6 vs. 7.1 mg/dl, p<0.01; ESR 110 vs. 71 mm/hour, p<0.01), when compared to the other GCA-patients. CONCLUSIONS LV-GCA should be considered as important differential diagnosis in patients with FUO. In addition to 18-FDG-PET, which is known to be a valuable method in the diagnostic work-up of FUO, we recommend CDS of the supraaortal and femoropopliteal arteries for the initial diagnostic work-up.
Collapse
|
152
|
Hoffmann U, Bergler T, Segerer S, Rümmele P, Krüger B, Banas MC, Reinhold S, Banas B, Krämer BK. Impact of chemokine receptor CX3CR1 in human renal allograft rejection. Transpl Immunol 2010; 23:204-8. [PMID: 20600902 DOI: 10.1016/j.trim.2010.06.006] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2010] [Revised: 06/09/2010] [Accepted: 06/10/2010] [Indexed: 11/25/2022]
Abstract
Chemokine receptors play pivotal roles for leukocyte recruitment in acute and chronic inflammatory processes. This study was performed to analyze the expression, distribution and cellular localization of CX3CR1 in human renal transplant biopsies and to assess its role as potential diagnostic and prognostic marker. CX3CR1 was prospectively analyzed in 174 renal graft biopsies from patients with normal morphology (n=76), antibody-mediated acute rejection (n=6), acute tubulointerstitial rejection (n=27), acute vascular rejection (n=31), and with acute tubulus necrosis (n=34). Double immunofluorescence was additionally performed for CX3CR1 and CD4, CD8, CD20, CD68, and CD209/DC-SIGN. The number of CX3CR1 positive interstitial cells was significantly higher in the biopsies with acute tubulointerstitial and acute vascular rejection as compared to normal renal allograft biopsies. CX3CR1 positive cells were mainly CD68 positive monocytes/macrophages and CD209/DC-SIGN positive dendritic cells. The percentage of the CX3CR1 positive staining area was a predictor for steroid responsiveness and for worse clinical outcome 3 and 12 months after transplantation. CX3CR1 positive macrophages and/or dendritic cells are significantly elevated in acute renal allograft rejection. As CX3CR1 was associated with outcome parameters, it has to be further evaluated as a prognostic marker in human renal transplantation.
Collapse
|
153
|
Hoffmann U. Diagnostik und Therapie der Großgefäßvaskulitis supraaortaler Gefäße. ROFO-FORTSCHR RONTG 2010. [DOI: 10.1055/s-0030-1252146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
154
|
Schmitt J, Apfelbacher C, Chen CM, Romanos M, Sausenthaler S, Koletzko S, Bauer CP, Hoffmann U, Krämer U, Berdel D, von Berg A, Wichmann HE, Heinrich J. Infant-onset eczema in relation to mental health problems at age 10 years: Results from a prospective birth cohort study (German Infant Nutrition Intervention plus). J Allergy Clin Immunol 2010; 125:404-10. [DOI: 10.1016/j.jaci.2009.10.055] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2009] [Revised: 09/25/2009] [Accepted: 10/13/2009] [Indexed: 10/19/2022]
|
155
|
Manini AF, Ilgen J, Noble VE, Bamberg F, Koenig W, Bohan JS, Hoffmann U. Derivation and validation of a sensitive IMA cutpoint to predict cardiac events in patients with chest pain. Emerg Med J 2010; 26:791-6. [PMID: 19850803 DOI: 10.1136/emj.2008.068130] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
OBJECTIVES In patients with acute chest pain, we derived a cutpoint for ischaemia-modified albumin (IMA) and prospectively validated this cutpoint to predict 30-day major adverse cardiac events (MACEs). METHODS We prospectively recruited a derivation cohort (18-month period) to establish a serum IMA cutpoint targeting 80% sensitivity. This was followed by a prospective validation cohort study of emergency department patients with acute chest pain at two university hospitals over a 3-month period. A MACE was defined as myocardial infarction, revascularisation or death at 30-day follow-up. RESULTS In the derivation cohort of 151 patients, the IMA cutpoint that achieved 80% sensitivity for MACEs was 75 KU/litre. The sensitivity was prospectively validated in 171 patients consecutively enrolled, of whom 106 underwent multiple-biomarker analysis (19.8% MACE rate, 81% sensitivity of IMA). Furthermore, IMA by itself (81%, p<0.01) and in combination with initial highly sensitive cardiac troponin T (hsTnT) (90%, p<0.001) had significantly higher sensitivity than initial hsTnT (29%) for prediction of MACEs. CONCLUSIONS We prospectively validated the sensitive IMA cutpoint of 75 KU/litre with 80% sensitivity for MACEs in patients with acute chest pain. Our data suggest that IMA alone and in combination with initial hsTnT are more sensitive than the initial hsTnT for MACEs.
Collapse
|
156
|
Rückinger S, Rzehak P, Chen CM, Sausenthaler S, Koletzko S, Bauer CP, Hoffmann U, Kramer U, Berdel D, von Berg A, Bayer O, Wichmann HE, von Kries R, Heinrich J. Prenatal and postnatal tobacco exposure and behavioral problems in 10-year-old children: results from the GINI-plus prospective birth cohort study. ENVIRONMENTAL HEALTH PERSPECTIVES 2010; 118:150-154. [PMID: 20056582 PMCID: PMC2831960 DOI: 10.1289/ehp.0901209] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2009] [Accepted: 10/07/2009] [Indexed: 05/27/2023]
Abstract
BACKGROUND Prenatal and postnatal tobacco exposure have been reported to be associated with behavioral problems. However, the magnitude of the association with tobacco exposure at specific periods of exposure is unclear. OBJECTIVE We assessed the relative risk of behavioral problems in children who had been exposed to tobacco smoke in utero and postnatally. METHODS We analyzed data from a prospective birth cohort study in two cities in Germany: the German Infant Nutrition Intervention. Our sample included 5,991 children born between 1995 and 1998 as well as their parents. We measured behavioral problems using the Strength and Difficulties Questionnaire (SDQ) at follow-up 10 years after birth. According to prespecified SDQ cutoff values, children were classified as "normal," "borderline," or "abnormal" according to the subscales "emotional symptoms," "conduct problems," "hyperactivity/inattention," "peer-relationship problems," and a total difficulties score. Smoke exposure and further covariates were assessed using parent questionnaires. RESULTS Compared with children not exposed to tobacco smoke, children exposed both pre- and postnatally to tobacco smoke had twice the estimated risk [95% confidence interval (CI), 1.4-3.1] of being classified as abnormal according to the total difficulties score of the SDQ at 10 years of age. Children who were only prenatally exposed had a 90% higher relative risk (95% CI, 0.9-4.0), whereas children who were only postnatally exposed had a 30% higher relative risk (95% CI, 0.9-1.9). These results could not be explained by confounding by parental education, father's employment, child's time spent in front of computer or television screen, being a single father or mother, or mother's age. CONCLUSIONS Prenatal exposure to tobacco smoke is associated with behavioral problems in school-age children. Although our findings do not preclude the influence of postnatal exposure, prenatal exposure seems to be more important.
Collapse
|
157
|
Pfeuffer B, Kunz U, Hoffmann U, Turek T. Multicomponent Mass Transfer Model for Supercritical Extraction: Application to Isopropyl Alcohol Production. Chem Eng Technol 2009. [DOI: 10.1002/ceat.200900204] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
158
|
Pfeuffer B, Kunz U, Hoffmann U, Turek T, Hoell D. Heterogeneous reactive extraction for an intensified alcohol production process. Catal Today 2009. [DOI: 10.1016/j.cattod.2009.07.052] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
159
|
Hoffmann U, Bergler T, Rihm M, Pace C, Krüger B, Rümmele P, Stoelcker B, Banas B, Männel DN, Krämer BK. Upregulation of TNF receptor type 2 in human and experimental renal allograft rejection. Am J Transplant 2009; 9:675-86. [PMID: 19298452 DOI: 10.1111/j.1600-6143.2008.02536.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
An important role of TNF interacting with TNFR2 has been shown in different models of ischemic, nephrotoxic and immune-mediated renal injury. To systematically evaluate the expression of TNFR2 in renal allograft rejection, we investigated human renal allograft biopsies and, in addition, established an experimental transplantation model in rats to verify the human data under standardized conditions. The expression of TNFR2 was analyzed in 96 human renal allograft biopsies with different disease entities. In a 6-day and a 28-day experimental protocol, TNFR2 was examined in kidney specimens and in the urine of control, uni-nephrectomized and transplanted rats +/- cyclosporine treatment (n = 114). In human biopsies and in rat allografts on day 6 with acute allograft rejection, significantly elevated expression of TNFR2 was observed in tubular epithelial cells, podocytes, B cells and monocytes/macrophages. The expression level was associated with renal function. The TNFR2 expression level at day 28 was significantly lower compared to day 6. TNFR2 is markedly upregulated both in human and experimental acute renal allograft rejection. Our data are robust and consistent between different species, suggesting a role for TNFR2 in the early course of rejection.
Collapse
|
160
|
Spielmanns M, Baum K, Hoffmann U. Effekte eines 12-wöchigen Trainings bei nicht-hypoxischen COPD-Patienten unter Sauerstoffsupplementierung. Pneumologie 2009. [DOI: 10.1055/s-0029-1213805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
161
|
Spielmanns M, Baum K, Hoffmann U. Effekte eines 12-wöchigen Trainings bei nicht-hypoxischen COPD-Patienten unter Sauerstoffsupplementierung. Pneumologie 2009. [DOI: 10.1055/s-0029-1213855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
162
|
Schlett CL, Massaro JM, Lehman SJ, Bamberg F, O'Donnell CJ, Fox CS, Hoffmann U. Novel measurements of periaortic adipose tissue in comparison to anthropometric measures of obesity, and abdominal adipose tissue. Int J Obes (Lond) 2009; 33:226-32. [PMID: 19139753 DOI: 10.1038/ijo.2008.267] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND Perivascular adipose tissue may be associated with the amount of local atherosclerosis. We developed a novel and reproducible method to standardize volumetric quantification of periaortic adipose tissue by computed tomography (CT) and determined the association with anthropometric measures of obesity, and abdominal adipose tissue. METHODS Measurements of adipose tissue were performed in a random subset of participants from the Framingham Heart Study (n=100) who underwent multidetector CT of the thorax (ECG triggering, 2.5 mm slice thickness) and the abdomen (helical CT acquisition, 2.5 mm slice thickness). Abdominal periaortic adipose tissue (AAT) was defined by a 5 mm cylindrical region of interest around the aortic wall; thoracic periaortic adipose tissue (TAT) was defined by anatomic landmarks. TAT and AAT were defined as any voxel between -195 and -45 HU and volumes were measured using dedicated semiautomatic software. Measurement reproducibility and association with anthropometric measures of obesity, and abdominal adipose tissue were determined. RESULTS The intra- and inter-observer reproducibility for both AAT and TAT was excellent (ICC: 0.97 and 0.97; 0.99 and 0.98, respectively). Similarly, the relative intra- and inter-observer difference was small for both AAT (-1.85+/-1.28% and 7.85+/-6.08%; respectively) and TAT (3.56+/-0.83% and -4.56+/-0.85%, respectively). Both AAT and TAT were highly correlated with visceral abdominal fat (r=0.65 and 0.77, P<0.0001 for both) and moderately correlated with subcutaneous abdominal fat (r=0.39 and 0.42, P<0.0001 and P=0.009), waist circumference (r=0.49 and 0.57, P<0.0001 for both) and body mass index (r=0.47 and 0.58, P<0.0001 for both). CONCLUSION Standardized semiautomatic CT-based volumetric quantification of periaortic adipose tissue is feasible and highly reproducible. Further investigation is warranted regarding associations of periaortic adipose tissue with other body fat deposits, cardiovascular risk factors and clinical outcomes.
Collapse
|
163
|
Brockow I, Zutavern A, Hoffmann U, Grübl A, von Berg A, Koletzko S, Filipiak B, Bauer CP, Wichmann HE, Reinhardt D, Berdel D, Krämer U, Heinrich J. Early allergic sensitizations and their relevance to atopic diseases in children aged 6 years: results of the GINI study. J Investig Allergol Clin Immunol 2009; 19:180-187. [PMID: 19610260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023] Open
Abstract
BACKGROUND Only a few studies have analyzed the value of early sensitization in predicting the development of atopic disease. The relevance of low immunoglobulin (Ig) E antibody levels in this respect also remains unclear. OBJECTIVE To investigate the relevance of sensitization in 12-month-old children in the development of atopic disease by the age of 6 years. METHODS We analyzed data for 1290 children with a positive family history of atopy from the prospective, multicenter German Infant Nutritional Intervention (GINIplus) study and investigated the relationship between the presence of detectable specific IgE antibodies at the age of 12 months and the development of atopic disease by the age of 6 years. RESULTS In all, 10.9% of children analyzed developed sensitization. At the age of 6 years, 20.6% of children with early sensitization had eczema compared to 9.4% of those without (odds ratio [OR], 2.31; 95% confidence interval [CI], 1.42-3.74). The corresponding figures were 15.4% vs 7.3% for allergic rhinitis (OR, 2.22; CI, 1.31-3.78) and 10.2% vs 2.6% (OR, 3.93; 95% CI, 1.98-7.76) for asthma. Children with early sensitization to aeroallergens had the greatest risk of subsequent atopic disease. Early sensitization did not increase risk in children without eczema within the first year of life. Very low specific IgE levels (0.18-0.34 kU/L) were not significantly associated with any of the outcomes analyzed. CONCLUSION Sensitization to common food allergens and to aeroallergens in particular during the first year of life was found to be a strong predictor for the development of atopic disease by the age of 6 years in children with a positive family history of atopy.
Collapse
|
164
|
Kolomiets O, Hoffmann U, Geladi P, Siesler HW. Quantitative determination of pharmaceutical drug formulations by near-infrared spectroscopic imaging. APPLIED SPECTROSCOPY 2008; 62:1200-1208. [PMID: 19007460 DOI: 10.1366/000370208786401590] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Over the last decade Fourier transform infrared (FT-IR) and near-infrared (NIR) spectroscopic imaging with focal plane array (FPA) detectors have proved powerful techniques for the rapid visualization of samples by a combination of spectroscopic and spatial information. Using these methods, selected sample areas can be analyzed with reference to the identification and localization of chemical species by FT-IR spectroscopy in the transmission or attenuated total reflection (ATR) mode and by NIR spectroscopy in diffuse reflection with a lateral resolution in the micrometer range. The present communication focuses on the quantitative determination of the active ingredient composition of a solid drug formulation by NIR spectroscopic imaging with a focal plane array detector and the results obtained are compared to the quantitative data obtained by conservative light-fiber NIR spectroscopic diffuse reflection measurements with a single-element detector. The communication also addresses the issue of penetration depth of NIR radiation into the investigated solid material.
Collapse
|
165
|
Heilmann K, Hoffmann U, Witte E, Loddenkemper C, Sina C, Schreiber S, Hayford C, Holzlöhner P, Wolk K, Tchatchou E, Moos V, Zeitz M, Sabat R, Günthert U, Wittig BM. Osteopontin as two-sided mediator of intestinal inflammation. J Cell Mol Med 2008; 13:1162-74. [PMID: 18627421 PMCID: PMC4496111 DOI: 10.1111/j.1582-4934.2008.00428.x] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Osteopontin (OPN) is characterized as a major amplifier of Th1-immune responses. However, its role in intestinal inflammation is currently unknown. We found considerably raised OPN levels in blood of wild-type (WT) mice with dextran sodium sulfate (DSS)-induced colitis. To identify the role of this mediator in intestinal inflammation, we analysed experimental colitis in OPN-deficient (OPN(-/-)) mice. In the acute phase of colitis these mice showed more extensive colonic ulcerations and mucosal destruction than WT mice, which was abrogated by application of soluble OPN. Within the OPN(-/-) mice, infiltrating macrophages were not activated and showed impaired phagocytosis. Reduced mRNA expression of interleukin (IL)-1 beta and matrix metalloproteinases was found in acute colitis of OPN(-/-) mice. This was associated with decreased blood levels of IL-22, a Th17 cytokine that may mediate epithelial regeneration. However, OPN-(/-) mice showed increased serum levels of tumour necrosis factor (TNF)-alpha, which could be due to systemically present lipopolysaccharide translocated to the gut. In contrast to acute colitis, during chronic DSS-colitis, which is driven by a Th1 response of the lamina propria infiltrates, OPN(-/-) mice were protected from mucosal inflammation and demonstrated lower serum levels of IL-12 than WT mice. Furthermore, neutralization of OPN in WT mice abrogated colitis. Lastly, we demonstrate that in patients with active Crohn's disease OPN serum concentration correlated significantly with disease activity. Taken together, we postulate a dual function of OPN in intestinal inflammation: During acute inflammation OPN seems to activate innate immunity, reduces tissue damage and initiates mucosal repair whereas during chronic inflammation it promotes the Th1 response and strengthens inflammation.
Collapse
|
166
|
Krüger B, Banas M, Hoffmann U. Reduced exposure to calcineurin inhibitors in renal transplantation. N Engl J Med 2008; 358:2518-9; author reply 2519-20. [PMID: 18536097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
|
167
|
Krüger B, Böger CA, Schröppel B, Farkas S, Schnitzbauer AA, Hoffmann U, Obed A, Murphy BT, Banas B, Krämer BK. No effect of C-reactive protein (CRP) haplotypes on CRP levels and post-transplant morbidity and mortality in renal transplantation. Transpl Int 2008; 21:452-8. [DOI: 10.1111/j.1432-2277.2007.00626.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
168
|
Weiss N, Lang C, Papatheodorou L, Theiss H, Franz W, Hoffmann U. THE NUMBER OF CIRCULATING ENDOTHELIAL PROGENITOR CELLS INCREASES WITH INCREASING SEVERITY OF CHRONIC PERIPHERAL ARTERIAL OCCLUSIVE DISEASE. ATHEROSCLEROSIS SUPP 2008. [DOI: 10.1016/s1567-5688(08)70015-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
169
|
Thieme T, Drbal U, Gloyna K, Hoffmann U. Different methods of monitoring susceptibility of oilseed rape beetles to insecticides. ACTA ACUST UNITED AC 2008. [DOI: 10.1111/j.1365-2338.2008.01193.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
170
|
Schneider T, Roth S, Gißler H, Hoffmann U, Raidt H, Hertle L. Retroperitoneale Pannikulitis: Seltene Differentialdiagnose oder Vorläufer einer retroperitonealen Fibrose? Aktuelle Urol 2008. [DOI: 10.1055/s-2008-1054304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
171
|
Pfaff G, Mezger B, Santibanez S, Hoffmann U, Maassen S, Wagner U, Siedler A. Measles in south-west Germany imported from Switzerland - a preliminary outbreak description. Euro Surveill 2008. [DOI: 10.2807/ese.13.08.08044-en] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Binary file ES_Abstracts_Final_ECDC.txt matches
Collapse
|
172
|
Pfaff G, Mezger B, Santibanez S, Hoffmann U, Maassen S, Wagner U, Siedler A. Measles in south-west Germany imported from Switzerland--a preliminary outbreak description. Euro Surveill 2008; 13:8044. [PMID: 18445413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023] Open
|
173
|
Rodríguez F, Keskinen K, Kusch M, Hoffmann U. Validity of a Swimming Snorkel for Metabolic Testing. Int J Sports Med 2008; 29:120-8. [DOI: 10.1055/s-2007-964973] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
174
|
Nicolaides AN, Allegra C, Bergan J, Bradbury A, Cairols M, Carpentier P, Comerota A, Delis C, Eklof B, Fassiadis N, Georgiou N, Geroulakos G, Hoffmann U, Jantet G, Jawien A, Kakkos S, Kalodiki E, Labropoulos N, Neglen P, Pappas P, Partsch H, Perrin M, Rabe E, Ramelet AA, Vayssaira M, Ioannidou E, Taft A. Management of chronic venous disorders of the lower limbs: guidelines according to scientific evidence. INT ANGIOL 2008; 27:1-59. [PMID: 18277340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
|
175
|
Jeanneret C, Jäger KA, Zaugg CE, Hoffmann U. Venous Reflux and Venous Distensibility in Varicose and Healthy Veins. Eur J Vasc Endovasc Surg 2007; 34:236-42. [PMID: 17524680 DOI: 10.1016/j.ejvs.2007.03.018] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2006] [Accepted: 03/25/2007] [Indexed: 12/01/2022]
Abstract
OBJECTIVES The aim of this study was to analyse venous diameter changes and venous reflux parameters, assessed during a standardised Valsalva manoeuvre in healthy subjects and in patients with varicose veins. METHODS Measurements were carried out in 444 vein segments, (96 legs of 48 healthy volunteers, 52 legs of 35 patients with varicose veins). The common femoral vein (CVF), the femoral vein (FV) and the great saphenous vein (GSV) were investigated. The parameters of reflux and the relative venous diameter change (VD diff %) were measured simultaneously during a standardised Valsalva manoeuvre. RESULTS Venous diameter changes during Valsalva manoeuvre (VD diff) were significantly greater in the GSV and in the deep veins of varicose patients compared to healthy subjects. The median (Interquartile range) of VD max in the CFV was: 13.1 (3.5) mm and 11.2 (3.4) mm (p=0.0002, Mann-Whitney - U test), in the FV 7.8 (2.7) mm and 6.9 (2.0) mm (p=0.01, Mann-Whitney), in the GSV: 7.3 (3.7) mm and 4.2 (1.1) mm (p<0.0001, Mann-Whitney) for the varicose and healthy veins respectively. Good correlation was seen for the retrograde peak reflux velocity (PRV) and VD diff % in varicose veins (r=0.71 (0.57 - 0.81) p<0.0001, Mann-Whitney). CONCLUSION Relative venous diameter--changes during a standardised Valsalva manoeuvre are significantly larger in the deep and superficial veins of varicose vein patients compared with healthy veins, the increased distensibility correlates with venous reflux parameters in varicose vein patients.
Collapse
|