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Frerichs I, Vogt B, Deuss K, Hennig V, Schädler D, Händel C. Distribution of regional lung function in upright healthy subjects determined by electrical impedance tomography in two chest examination planes. Physiol Meas 2024; 45:015001. [PMID: 38096575 DOI: 10.1088/1361-6579/ad15ac] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 12/14/2023] [Indexed: 12/20/2023]
Abstract
Objective. The variation in pulmonary gas content induced by ventilation is not uniformly distributed in the lungs. The aim of our study was to characterize the differences in spatial distribution of ventilation in two transverse sections of the chest using electrical impedance tomography (EIT).Approach. Twenty adult never-smokers, 10 women and 10 men (mean age ± SD, 31 ± 9 years), were examined in a sitting position with the EIT electrodes placed consecutively in a caudal (6th intercostal space) and a cranial (4th intercostal space) chest location. EIT data were acquired during quiet breathing, slow and forced full expiration manoeuvres. Impedance variations representing tidal volume (VT), vital capacity (VC), forced expiratory volume in 1 s (FEV1) and forced vital capacity (FVC) were calculated at the level of individual image pixels and their spatial distribution was determined using the following EIT measures: the centres of ventilation in ventrodorsal (CoVvd) and right-to-left direction (CoVrl), the dorsal and right fractions of ventilation, the coefficient of variation (CV) and the global inhomogeneity (GI) index.Main results. The sums of pixel ventilation-related impedance variations reproduced reliably the volumetric dissimilarities amongVT, VC, FEV1and FVC, with no significant differences noted between the two examination planes. Significant differences in ventilation distribution were found between the planes during tidal breathing and slow full expiration, mainly regarding the ventrodorsal direction, with higher values of CoVvdand dorsal fraction of ventilation in the caudal plane (p< 0.01). No significant differences in the spatial distribution of FEV1and FVC were detected between the examination planes.Significance. The spatial distribution of ventilation differed between the two examination planes only during the relaxed (quiet breathing and slow VC manoeuvre) but not during the forced ventilation. This effect is attributable to the differences in thoracoabdominal mechanics between these types of ventilation.
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Affiliation(s)
- I Frerichs
- University Medical Centre Schleswig-Holstein, Campus Kiel, Department of Anaesthesiology and Intensive Care Medicine, Kiel, Germany
| | - B Vogt
- University Medical Centre Schleswig-Holstein, Campus Kiel, Department of Anaesthesiology and Intensive Care Medicine, Kiel, Germany
| | - K Deuss
- University Medical Centre Schleswig-Holstein, Campus Kiel, Department of Anaesthesiology and Intensive Care Medicine, Kiel, Germany
| | - V Hennig
- University Medical Centre Schleswig-Holstein, Campus Kiel, Department of Anaesthesiology and Intensive Care Medicine, Kiel, Germany
| | - D Schädler
- University Medical Centre Schleswig-Holstein, Campus Kiel, Department of Anaesthesiology and Intensive Care Medicine, Kiel, Germany
| | - C Händel
- University Medical Centre Schleswig-Holstein, Campus Kiel, Department of Anaesthesiology and Intensive Care Medicine, Kiel, Germany
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Tessitore E, Dobretz K, Dhayat NA, Estoppey S, Kern I, Ponte B, Pruijm M, Vogt B, Vuilleumier N, Bochud M, Mach F, Ehret G. Lipoprotein(a) levels are not independently associated with endogenous steroid hormone levels, in contrast to other non-genetic and genetic factors: the population-based SKIPOGH study. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.2578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Introduction
Lipoprotein(a) [Lp(a)] is an LDL-like molecule that is likely causally related to cardiovascular events. Lp(a) levels are highly variable, by more two orders of magnitude, and most of this variability appears to be of genetic origin. Exogenous hormones (hormone replacement therapy) seem to influence Lp(a) levels, but the impact of the variation of endogenous hormone levels on Lp(a) is unknown.
Purpose
To investigate the association between Lp(a) levels and non-genetic factors, as endogenous steroid hormone levels, in contrast to genetic factors.
Methods
We investigated the association of 28 endogenous steroids with Lp(a) levels and compared the association to other non-genetic and genetic variables in a prospective, population-based sample (N=1,021).
Results
The average age of the participants was 51 years and 53% were female. Median Lp(a) levels were 62 (±204) mg/l and the 90th and 99th percentile of Lp(a) was 616mg/l and 1035 mg/l respectively. The prevalence of a Lp(a) elevation ≥700mg/l was 3.2% and Lp(a) varied greatly from undetectable to 1,690mg/l. Age explained 2.0% of Lp(a) variability (p<0.001), 1% was explained by LDL levels (p=0.001), and 40% by two single nucleotide polymorphisms near the Lp(a) gene that have been previously described. Lp(a) levels were on average almost two times more elevated in secondary prevention and in individuals with very elevated LDL levels (≥4.9 mmol/l). Of the 28 endogenous steroid hormones assessed, 5-androstene-3b,16α,17β-triol, androsterone, 16α-hydroxy DHEA, and estriol were nominatively associated with serum Lp(a) levels and explained 0.4–1% of Lp(a) variability in univariate analyses, but they did not reach significance in multi-variate models.
Conclusion
Our results confirm previous findings demonstrating that the majority of the Lp(a) variation in the general population is of genetic origin. Age and LDL-levels explain a further small part of Lp(a) variability. Endogenous hormone levels do not contribute significantly to the wide range of variability.
Funding Acknowledgement
Type of funding sources: None. Coefficient plot Lp(a) and variables
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Affiliation(s)
- E Tessitore
- University Hospital of Geneva, Department of Cardiology, Geneva, Switzerland
| | - K Dobretz
- University Hospital of Geneva, Department of Cardiology, Geneva, Switzerland
| | - N A Dhayat
- Inselspital - University of Bern, Department of Nephrology and Hypertension, Bern, Switzerland
| | - S Estoppey
- Centre for Primary Care and Public Health (Unisante), Lausanne, Switzerland
| | - I Kern
- Geneva University Hospitals, Geneva, Switzerland
| | - B Ponte
- Geneva University Hospitals, Department of Nephrology and Hypertension, Geneva, Switzerland
| | - M Pruijm
- University Hospital Centre Vaudois (CHUV), Department of Nephrology, Lausanne, Switzerland
| | - B Vogt
- Inselspital - University of Bern, Department of Nephrology and Hypertension, Bern, Switzerland
| | | | - M Bochud
- Centre for Primary Care and Public Health (Unisante), Lausanne, Switzerland
| | - F Mach
- University Hospital of Geneva, Department of Cardiology, Geneva, Switzerland
| | - G Ehret
- University Hospital of Geneva, Department of Cardiology, Geneva, Switzerland
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Haris K, Vogt B, Strodthoff C, Pessoa D, Cheimariotis GA, Rocha B, Petmezas G, Weiler N, Paiva RP, de Carvalho P, Maglaveras N, Frerichs I. Identification and analysis of stable breathing periods in electrical impedance tomography recordings. Physiol Meas 2021; 42. [PMID: 34098533 DOI: 10.1088/1361-6579/ac08e5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 06/07/2021] [Indexed: 11/11/2022]
Abstract
Objective. In this paper, an automated stable tidal breathing period (STBP) identification method based on processing electrical impedance tomography (EIT) waveforms is proposed and the possibility of detecting and identifying such periods using EIT waveforms is analyzed. In wearable chest EIT, patients breathe spontaneously, and therefore, their breathing pattern might not be stable. Since most of the EIT feature extraction methods are applied to STBPs, this renders their automatic identification of central importance.Approach. The EIT frame sequence is reconstructed from the raw EIT recordings and the raw global impedance waveform (GIW) is computed. Next, the respiratory component of the raw GIW is extracted and processed for the automatic respiratory cycle (breath) extraction and their subsequent grouping into STBPs.Main results. We suggest three criteria for the identification of STBPs, namely, the coefficient of variation of (i) breath tidal volume, (ii) breath duration and (iii) end-expiratory impedance. The total number of true STBPs identified by the proposed method was 294 out of 318 identified by the expert corresponding to accuracy over 90%. Specific activities such as speaking, eating and arm elevation are identified as sources of false positives and their discrimination is discussed.Significance. Simple and computationally efficient STBP detection and identification is a highly desirable component in the EIT processing pipeline. Our study implies that it is feasible, however, the determination of its limits is necessary in order to consider the implementation of more advanced and computationally demanding approaches such as deep learning and fusion with data from other wearable sensors such as accelerometers and microphones.
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Affiliation(s)
- K Haris
- Lab of Computing, Medical Informatics and Biomedical Imaging Technologies, Aristotle University, Thessaloniki, Greece.,Department of Informatics and Computer Engineering, University of West Attica, Greece
| | - B Vogt
- Department of Anaesthesiology and Intensive Care Medicine, University Medical Centre Schleswig-Holstein, Campus Kiel, Germany
| | - C Strodthoff
- Department of Anaesthesiology and Intensive Care Medicine, University Medical Centre Schleswig-Holstein, Campus Kiel, Germany
| | - D Pessoa
- University of Coimbra, Centre for Informatics and Systems of the University of Coimbra, Department of Informatics Engineering, 3030-290 Coimbra, Portugal
| | - G-A Cheimariotis
- Lab of Computing, Medical Informatics and Biomedical Imaging Technologies, Aristotle University, Thessaloniki, Greece
| | - B Rocha
- University of Coimbra, Centre for Informatics and Systems of the University of Coimbra, Department of Informatics Engineering, 3030-290 Coimbra, Portugal
| | - G Petmezas
- Lab of Computing, Medical Informatics and Biomedical Imaging Technologies, Aristotle University, Thessaloniki, Greece
| | - N Weiler
- Department of Anaesthesiology and Intensive Care Medicine, University Medical Centre Schleswig-Holstein, Campus Kiel, Germany
| | - R P Paiva
- University of Coimbra, Centre for Informatics and Systems of the University of Coimbra, Department of Informatics Engineering, 3030-290 Coimbra, Portugal
| | - P de Carvalho
- University of Coimbra, Centre for Informatics and Systems of the University of Coimbra, Department of Informatics Engineering, 3030-290 Coimbra, Portugal
| | - N Maglaveras
- Lab of Computing, Medical Informatics and Biomedical Imaging Technologies, Aristotle University, Thessaloniki, Greece.,Department of Electrical and Computer Engineering, Northwestern University, Evanston, IL, United States of America
| | - I Frerichs
- Department of Anaesthesiology and Intensive Care Medicine, University Medical Centre Schleswig-Holstein, Campus Kiel, Germany
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Vogt B, Frommer A, Gosheger G, Toporowski G, Tretow H, Rödl R, Laufer A. [Growth modulation through hemiepiphysiodesis : Novel surgical techniques: risks and progress]. Orthopade 2021; 50:538-547. [PMID: 34170353 DOI: 10.1007/s00132-021-04122-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 05/10/2021] [Indexed: 10/21/2022]
Abstract
The correction of angular deformities of the lower limb is a key task in paediatric orthopaedic surgery. The growth potential of the physis can be employed for the correction of these malalignments in childhood and adolescence. Hemiepiphysiodesis (HED) is a surgical technique used for growth modulation by permanent or temporary asymmetrical arrest of the growth plate. In permanent HED, exact timing of the procedure is mandatory to achieve optimal correction. Temporary HED through tension band devices such as two-hole-plates or flexible staples has been established as the treatment of choice for growth guidance with excellent results. Implant-associated complications have been significantly reduced through implant modifications. Several experimental procedures have the potential to achieve growth modulation even without the requirement of surgical intervention.
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Affiliation(s)
- B Vogt
- Kinderorthopädie, Deformitätenrekonstruktion und Fußchirurgie, Universitätsklinikum Münster, Münster, Deutschland.
| | - A Frommer
- Kinderorthopädie, Deformitätenrekonstruktion und Fußchirurgie, Universitätsklinikum Münster, Münster, Deutschland
| | - G Gosheger
- Allgemeine Orthopädie und Tumororthopädie, Universitätsklinikum Münster, Münster, Deutschland
| | - G Toporowski
- Kinderorthopädie, Deformitätenrekonstruktion und Fußchirurgie, Universitätsklinikum Münster, Münster, Deutschland
| | - H Tretow
- Kinderorthopädie, Deformitätenrekonstruktion und Fußchirurgie, Universitätsklinikum Münster, Münster, Deutschland
| | - R Rödl
- Kinderorthopädie, Deformitätenrekonstruktion und Fußchirurgie, Universitätsklinikum Münster, Münster, Deutschland
| | - A Laufer
- Kinderorthopädie, Deformitätenrekonstruktion und Fußchirurgie, Universitätsklinikum Münster, Münster, Deutschland
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Lasarow L, Vogt B, Zhao Z, Balke L, Weiler N, Frerichs I. Regional lung function measures determined by electrical impedance tomography during repetitive ventilation manoeuvres in patients with COPD. Physiol Meas 2021; 42:015008. [PMID: 33434902 DOI: 10.1088/1361-6579/abdad6] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
OBJECTIVE Current standards for conducting spirometry examinations recommend that the ventilation manoeuvres needed in pulmonary function testing are carried out repeatedly during sessions. Chest electrical impedance tomography (EIT) can determine the presence of ventilation heterogeneity during such manoeuvres, which increases the information content derived from such examinations. The aim of this study was to characterise regional lung function in patients with chronic obstructive pulmonary disease (COPD) during repetitive forced full ventilation manoeuvres. Regional lung function measures derived from these manoeuvres were compared with quiet tidal breathing. APPROACH Sixty hospitalised patients were examined during up to three repeated ventilation manoeuvres. Acceptable spirometry manoeuvres were performed and EIT recordings suitable for analysis obtained in 53 patients (12 women, 41 men; age: 68 ± 12 years (mean ± SD)). Pixel values of tidal volume, forced full inspiratory and expiratory volume in 1 s, and forced inspiratory and expiratory vital capacity were calculated from the EIT data. Spatial ventilation heterogeneity was assessed using the coefficient of variation, global inhomogeneity index, and centres and regional fractions of ventilation. Temporal inhomogeneity was determined by examining the pixel expiration times needed to exhale 50% and 75% of regional forced vital capacity. MAIN RESULTS All EIT-derived measures of regional lung function showed reproducible results during repetitive examinations. Parameters of spatial heterogeneity obtained from quiet tidal breathing were comparable with the measures derived from the forced manoeuvres. SIGNIFICANCE Measures of spatial and temporal ventilation heterogeneity obtained in COPD patients by EIT provide comparable findings during repeated examinations within one testing session. Quiet tidal breathing generates similar information on ventilation heterogeneity as forced manoeuvres that demand a high amount of patient effort.
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Affiliation(s)
- L Lasarow
- Department of Anaesthesiology and Intensive Care Medicine, University Medical Centre Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - B Vogt
- Department of Anaesthesiology and Intensive Care Medicine, University Medical Centre Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Z Zhao
- Institute of Technical Medicine, Furtwangen University, Villingen-Schwenningen, Germany.,Department of Biomedical Engineering, Fourth Military Medical University, Xi'an, People's Republic of China
| | - L Balke
- Department of Pneumology, University Medical Centre Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - N Weiler
- Department of Anaesthesiology and Intensive Care Medicine, University Medical Centre Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - I Frerichs
- Department of Anaesthesiology and Intensive Care Medicine, University Medical Centre Schleswig-Holstein, Campus Kiel, Kiel, Germany
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Frommer A, Rödl R, Gosheger G, Vogt B. [Application of motorized intramedullary lengthening nails in skeletally immature patients : Indications and limitations]. Unfallchirurg 2019; 121:860-867. [PMID: 30203390 DOI: 10.1007/s00113-018-0541-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
BACKGROUND Limb lengthening and deformity correction with motorized intramedullary lengthening nails is a more comfortable and equally safe procedure than the use of external fixators. While this treatment is a well-established method in adults, intramedullary nailing for skeletally immature patients remains a challenge and is the focus of current clinical investigations. OBJECTIVE Elucidation of the indications for the application of femoral and tibial lengthening nails in skeletally immature patients, presentation of essential characteristics and limitations of the treatment. MATERIAL AND METHODS Treatment of skeletally immature patients up to 16 years old who had a lengthening nail inserted was retrospectively clinically and radiologically evaluated (2016-2018). RESULTS A total of 60 procedures were performed on 54 patients. Mean age at the time of surgery was 13.6 years and the mean follow-up time was 10 months. Different nailing approaches were used: antegrade femoral (n = 42), retrograde femoral (n = 10) and antegrade tibial (n = 8). The average amount of lengthening was 45 mm. In 58 of the 60 cases (96.7%) the desired amount of lengthening was achieved, while 2 patients experienced complications that required interruption of the treatment. None of the patients developed growth disorders associated with the nailing approach. CONCLUSION Different approaches for intramedullary lengthening nails can be used in children and adolescents to correct leg length discrepancy with or without concomitant deformities. The treatment is limited by the size of the available nails, the residual growth and extent of the deformity. Larger trials will be needed to further validate the application of lengthening nails in skeletally immature patients.
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Affiliation(s)
- A Frommer
- Abteilung für Kinderorthopädie, Deformitätenrekonstruktion und Fußchirurgie, Universitätsklinikum Münster, Albert-Schweitzer-Campus 1, Gebäude A1, 48149, Münster, Deutschland.
| | - R Rödl
- Abteilung für Kinderorthopädie, Deformitätenrekonstruktion und Fußchirurgie, Universitätsklinikum Münster, Albert-Schweitzer-Campus 1, Gebäude A1, 48149, Münster, Deutschland
| | - G Gosheger
- Klinik für Allgemeine Orthopädie und Tumororthopädie, Universitätsklinikum Münster, Münster, Deutschland
| | - B Vogt
- Abteilung für Kinderorthopädie, Deformitätenrekonstruktion und Fußchirurgie, Universitätsklinikum Münster, Albert-Schweitzer-Campus 1, Gebäude A1, 48149, Münster, Deutschland
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Vogt B. Obstruction urétérale maligne extrinsèque : intérêt du drainage par sondes en tandem. Prog Urol 2018. [DOI: 10.1016/j.purol.2018.07.136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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8
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Canivell S, Mohaupt M, Ackermann D, Pruijm M, Guessous I, Ehret G, Escher G, Pechère-Bertschi A, Vogt B, Devuyst O, Burnier M, Martin PY, Ponte B, Bochud M. Copeptin and insulin resistance: effect modification by age and 11 β-HSD2 activity in a population-based study. J Endocrinol Invest 2018; 41:799-808. [PMID: 29235050 DOI: 10.1007/s40618-017-0807-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Accepted: 12/05/2017] [Indexed: 12/26/2022]
Abstract
PURPOSE Arginine vasopressin (AVP) may be involved in metabolic syndrome (MetS) by altering liver glycogenolysis, insulin and glucagon secretion, and pituitary ACTH release. Moreover, AVP stimulates the expression of 11β-hydroxysteroid-dehydrogenase-type 2 (11β-HSD2) in mineralocorticosteroid cells. We explored whether apparent 11β-HSD2 activity, estimated using urinary cortisol-to-cortisone ratio, modulates the association between plasma copeptin, as AVP surrogate, and insulin resistance/MetS in the general adult population. METHODS This was a multicentric, family-based, cross-sectional sample of 1089 subjects, aged 18-90 years, 47% men, 13.4% MetS, in Switzerland. Mixed multivariable linear and logistic regression models were built to investigate the association of insulin resistance (HOMA-IR)/fasting glucose and MetS/Type 2 Diabetes with copeptin, while considering potential confounders or effect modifiers into account. Stratified results by age and 11β-HSD2 activity were presented as appropriate. RESULTS Plasma copeptin was higher in men [median 5.2, IQR (3.7-7.8) pmol/L] than in women [median 3.0, IQR (2.2-4.3) pmol/L], P < 0.0001. HOMA-IR was positively associated with copeptin after full adjustment if 11β-HSD2 activity was high [β (95% CI) = 0.32 (0.17-0.46), P < 0.001] or if age was high [β (95% CI) = 0.34 (0.20-0.48), P < 0.001], but not if either 11β-HSD2 activity or age was low. There was a positive association of type 2 diabetes with copeptin [OR (95% CI) = 2.07 (1.10-3.89), P = 0.024), but not for MetS (OR (95% CI) = 1.12 (0.74-1.69), P = 0.605), after full adjustment. CONCLUSIONS Our data suggest that age and apparent 11β-HSD2 activity modulate the association of copeptin with insulin resistance at the population level but not MeTS or diabetes. Further research is needed to corroborate these results and to understand the mechanisms underlying these findings.
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Affiliation(s)
- S Canivell
- Institute of Social and Preventive Medicine, Lausanne University Hospital, Lausanne, Switzerland.
| | - M Mohaupt
- University Clinic for Nephrology, Hypertension and Clinical Pharmacology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - D Ackermann
- University Clinic for Nephrology, Hypertension and Clinical Pharmacology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - M Pruijm
- Service of Nephrology and Hypertension, University Hospital of Lausanne (CHUV), Lausanne, Switzerland
| | - I Guessous
- Department of Community Medicine, Primary Care and Emergency Medicine, University Hospital of Geneva, Geneva, Switzerland
- Institute of Social and Preventive Medicine, University Hospital of Lausanne, Lausanne, Switzerland
| | - G Ehret
- Cardiology Service, Department of Specialties of Internal Medicine, University Hospital of Geneva, Geneva, Switzerland
| | - G Escher
- University Clinic for Nephrology, Hypertension and Clinical Pharmacology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - A Pechère-Bertschi
- Unit of Hypertension, Departments of Specialties of Medicine and Community Medicine and Primary Care and Emergency Medicine, Geneva University Hospitals, Geneva, Switzerland
| | - B Vogt
- University Clinic for Nephrology, Hypertension and Clinical Pharmacology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - O Devuyst
- Institute of Physiology, University of Zurich, Zurich, Switzerland
| | - M Burnier
- Nephrology Service, University Hospital of Lausanne, Lausanne, Switzerland
- Department of Clinical Research, University of Bern, Bern, Switzerland
| | - P-Y Martin
- Nephrology Service, Department of Specialties of Internal Medicine, University Hospital of Geneva, Geneva, Switzerland
| | - B Ponte
- Nephrology Service, Department of Specialties of Internal Medicine, University Hospital of Geneva, Geneva, Switzerland
| | - M Bochud
- Institute of Social and Preventive Medicine, Lausanne University Hospital, Lausanne, Switzerland
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Sandbaumhüter F, Vogt B, Haschke M, Bohlender J. MEDICATION ADHERENCE AND UNREPORTED DRUG USE DURING WORKUP FOR PRIMARY ALDOSTERONISM. J Hypertens 2018. [DOI: 10.1097/01.hjh.0000539459.81750.cf] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Abstract
Chronic renal insufficiency has a high prevalence and leads not only to a severe impairment in the quality of life but also to a higher mortality, mainly due to cardiovascular complications; however, in the early stages where there is still a chance for a therapeutic intervention, it is often underestimated because depending on endogenous factors (e.g. age and muscle mass), serum creatinine could falsely remain in the normal range while kidney function is already impaired. An exact measurement of the glomerular filtration rate (GFR) using radionuclide techniques is cumbersome and usually confined to rare cases, such as in clinical studies. Creatinine clearance measurement by 24-h urine collection requires good patient instructions and is error prone, thus it is limited to special circumstances. In routine clinical practice, estimation of the GFR by calculation algorithms provides the best approach. In recent years the chronic kidney disease epidemiology collaboration (CKD-EPI) formula has become established as the most accurate method. This should be used for screening and continuous surveillance. In addition, urinalysis including dipstick tests and urinary microscopy represent non-invasive, technically simple and economic screening tools. Due to its semiquantitative nature, the results of urinalysis should only to be interpreted after comprehensive consideration of the diagnostic and technical limitations, which are reviewed in this article.
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Affiliation(s)
- U Huynh-Do
- Universitätsklinik für Nephrologie und Hypertonie, Inselspital, Universitätsspital Bern, 3010, Bern, Schweiz.
| | - M Fiedler
- Universitätsinstitut für Klinische Chemie, Inselspital, Universitätsspital Bern, 3010, Bern, Schweiz
| | - B Vogt
- Universitätsklinik für Nephrologie und Hypertonie, Inselspital, Universitätsspital Bern, 3010, Bern, Schweiz
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Vogt B, Ehlers K, Hennig V, Zhao Z, Weiler N, Frerichs I. Heterogenität der regionalen forcierten Exspiration bei lungengesunden Erwachsenen ermittelt mit regionaler Impedanztomografie. Pneumologie 2017. [DOI: 10.1055/s-0037-1598558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- B Vogt
- Klinik für Anästhesiologie und Operative Intensivmedizin, Universitätsklinikum Schleswig-Holstein, Campus Kiel
| | - K Ehlers
- Klinik für Anästhesiologie und Operative Intensivmedizin, Universitätsklinikum Schleswig-Holstein, Campus Kiel
| | - V Hennig
- Klinik für Anästhesiologie und Operative Intensivmedizin, Universitätsklinikum Schleswig-Holstein, Campus Kiel
| | - Z Zhao
- Institut für Technische Medizin, Universität Furtwangen
| | - N Weiler
- Klinik für Anästhesiologie und Operative Intensivmedizin, Universitätsklinikum Schleswig-Holstein, Campus Kiel
| | - I Frerichs
- Klinik für Anästhesiologie und Operative Intensivmedizin, Universitätsklinikum Schleswig-Holstein, Campus Kiel
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12
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Lasarow L, Vogt B, Mendes L, Chouvarda I, Perantoni E, Kaimakamis E, Weiler N, Paiva RP, Maglaveras N, Frerichs I. Inhomogenität der regionalen Ventilationsverteilung während der forcierten Inspiration gemessen mittels elektrischer Impedanztomografie bei COPD-Patienten. Pneumologie 2017. [DOI: 10.1055/s-0037-1598566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- L Lasarow
- Klinik für Anästhesiologie und Operative Intensivmedizin, Universitätsklinikum Schleswig-Holstein, Campus Kiel
| | - B Vogt
- Klinik für Anästhesiologie und Operative Intensivmedizin, Universitätsklinikum Schleswig-Holstein, Campus Kiel
| | - L Mendes
- Faculty of Sciences and Technology, University of Coimbra
| | - I Chouvarda
- Laboratory of Medical Informatics, Aristotle University of Thessaloniki
| | - E Perantoni
- General Hospital of Thessaloniki 'g. Papanikolaou'
| | - E Kaimakamis
- General Hospital of Thessaloniki 'g. Papanikolaou'
| | - N Weiler
- Klinik für Anästhesiologie und Operative Intensivmedizin, Universitätsklinikum Schleswig-Holstein, Campus Kiel
| | - RP Paiva
- Faculty of Sciences and Technology, University of Coimbra
| | - N Maglaveras
- Laboratory of Medical Informatics, Aristotle University of Thessaloniki
| | - I Frerichs
- Klinik für Anästhesiologie und Operative Intensivmedizin, Universitätsklinikum Schleswig-Holstein, Campus Kiel
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Schuldt J, Doktor A, Lichters M, Vogt B, Robra BP. Relevanz von Qualitätsmerkmalen bei der Krankenhauswahl für den Bürger in Sachsen-Anhalt. Gesundheitswesen 2016. [DOI: 10.1055/s-0036-1586651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Vogt B, Mendes L, Chouvarda I, Perantoni E, Kaimakamis E, Becher T, Weiler N, Tsara V, Paiva RP, Maglaveras N, Frerichs I. Influence of torso and arm positions on chest examinations by electrical impedance tomography. Physiol Meas 2016; 37:904-21. [PMID: 27200486 DOI: 10.1088/0967-3334/37/6/904] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Electrical impedance tomography (EIT) is increasingly used in patients suffering from respiratory disorders during pulmonary function testing (PFT). The EIT chest examinations often take place simultaneously to conventional PFT during which the patients involuntarily move in order to facilitate their breathing. Since the influence of torso and arm movements on EIT chest examinations is unknown, we studied this effect in 13 healthy subjects (37 ± 4 years, mean age ± SD) and 15 patients with obstructive lung diseases (72 ± 8 years) during stable tidal breathing. We carried out the examinations in an upright sitting position with both arms adducted, in a leaning forward position and in an upright sitting position with consecutive right and left arm elevations. We analysed the differences in EIT-derived regional end-expiratory impedance values, tidal impedance variations and their spatial distributions during all successive study phases. Both the torso and the arm movements had a highly significant influence on the end-expiratory impedance values in the healthy subjects (p = 0.0054 and p < 0.0001, respectively) and the patients (p < 0.0001 in both cases). The global tidal impedance variation was affected by the torso, but not the arm movements in both study groups (p = 0.0447 and p = 0.0418, respectively). The spatial heterogeneity of the tidal ventilation distribution was slightly influenced by the alteration of the torso position only in the patients (p = 0.0391). The arm movements did not impact the ventilation distribution in either study group. In summary, the forward torso movement and the arms' abduction exert significant effects on the EIT waveforms during tidal breathing. We recommend strict adherence to the upright sitting position during PFT when EIT is used.
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Affiliation(s)
- B Vogt
- Department of Anaesthesiology and Intensive Care Medicine, University Medical Centre Schleswig-Holstein, Campus Kiel, Kiel, Germany
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Frerichs I, Zhao Z, Becher T, Zabel P, Weiler N, Vogt B. Regional lung function determined by electrical impedance tomography during bronchodilator reversibility testing in patients with asthma. Physiol Meas 2016; 37:698-712. [PMID: 27203725 DOI: 10.1088/0967-3334/37/6/698] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The measurement of rapid regional lung volume changes by electrical impedance tomography (EIT) could determine regional lung function in patients with obstructive lung diseases during pulmonary function testing (PFT). EIT examinations carried out before and after bronchodilator reversibility testing could detect the presence of spatial and temporal ventilation heterogeneities and analyse their changes in response to inhaled bronchodilator on the regional level. We examined seven patients suffering from chronic asthma (49 ± 19 years, mean age ± SD) using EIT at a scan rate of 33 images s(-1) during tidal breathing and PFT with forced full expiration. The patients were studied before and 5, 10 and 20 min after bronchodilator inhalation. Seven age- and sex-matched human subjects with no lung disease history served as a control study group. The spatial heterogeneity of lung function measures was quantified by the global inhomogeneity indices calculated from the pixel values of tidal volume, forced expiratory volume in one second (FEV1), forced vital capacity (FVC), peak flow and forced expiratory flow between 25% and 75% of FVC as well as histograms of pixel FEV1/FVC values. Temporal heterogeneity was assessed using the pixel values of expiration times needed to exhale 75% and 90% of pixel FVC. Regional lung function was more homogeneous in the healthy subjects than in the patients with asthma. Spatial and temporal ventilation distribution improved in the patients with asthma after the bronchodilator administration as evidenced mainly by the histograms of pixel FEV1/FVC values and pixel expiration times. The examination of regional lung function using EIT enables the assessment of spatial and temporal heterogeneity of ventilation distribution during bronchodilator reversibility testing. EIT may become a new tool in PFT, allowing the estimation of the natural disease progression and therapy effects on the regional and not only global level.
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Affiliation(s)
- I Frerichs
- Department of Anaesthesiology and Intensive Care Medicine, University Medical Centre Schleswig-Holstein, Campus Kiel, Kiel, Germany
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Vogt B. Chronic kidney disease in the Swiss population. Swiss Med Wkly 2016; 146:w14319. [DOI: 10.4414/smw.2016.14319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Affiliation(s)
- B Vogt
- Polyclinique de Blois, La chaussée Saint-Victor, France.
| | - A Desgrippes
- Polyclinique de Blois, La chaussée Saint-Victor, France
| | - F Desfemmes
- Polyclinique de Blois, La chaussée Saint-Victor, France
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Zurkinden L, Monsour Y, Rohrbach B, Vogt B, Mistry H, Escher G. Alterations in liver caveolin-1 expression on lipids and atherosclerosis development in apoE-knockout mice. Atherosclerosis 2015. [DOI: 10.1016/j.atherosclerosis.2015.04.328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Becher T, Kott M, Schädler D, Vogt B, Meinel T, Weiler N, Frerichs I. Influence of tidal volume on ventilation inhomogeneity assessed by electrical impedance tomography during controlled mechanical ventilation. Physiol Meas 2015; 36:1137-46. [PMID: 26007294 DOI: 10.1088/0967-3334/36/6/1137] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The global inhomogeneity (GI) index is a parameter of ventilation inhomogeneity that can be calculated from images of tidal ventilation distribution obtained by electrical impedance tomography (EIT). It has been suggested that the GI index may be useful for individual adjustment of positive end-expiratory pressure (PEEP) and for guidance of ventilator therapy. The aim of the present work was to assess the influence of tidal volume (VT) on the GI index values. EIT data from 9 patients with acute respiratory distress syndrome ventilated with a low and a high VT of 5 ± 1 (mean ± SD) and 9 ± 1 ml kg(-1) predicted body weight at a high and a low level of PEEP (PEEPhigh, PEEPlow) were analyzed. PEEPhigh and PEEPlow were set 2 cmH2O above and 5 cmH2O below the lower inflection point of a quasi-static pressure volume loop, respectively. The lower inflection point was identified at 8.1 ± 1.4 (mean ± SD) cmH2O, resulting in a PEEPhigh of 10.1 ± 1.4 and a PEEPlow of 3.1 ± 1.4 cmH2O. At PEEPhigh, we found no significant trend in GI index with low VT when compared to high VT (0.49 ± 0.15 versus 0.44 ± 0.09, p = 0.13). At PEEPlow, we found a significantly higher GI index with low VT compared to high VT (0.66 ± 0.19 versus 0.59 ± 0.17, p = 0.01). When comparing the PEEP levels, we found a significantly lower GI index at PEEPhigh both for high and low VT. We conclude that high VT may lead to a lower GI index, especially at low PEEP settings. This should be taken into account when using the GI index for individual adjustment of ventilator settings.
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Affiliation(s)
- T Becher
- Department of Anaesthesiology and Intensive Care Medicine, University Medical Centre Schleswig-Holstein, Campus Kiel, 24118 Kiel, Germany
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Abstract
BACKGROUND A main task of pediatric orthopedics is the treatment of legs of different lengths or misshapen legs. Whereas for adult patients complicated and invasive operative interventions are necessary, the growth potential of the epiphysial plate can be utilized in childhood and adolescence to correct leg length differences and leg axis deformities. THERAPY Epiphysiodesis leads to a guidance of growth via a temporary or permanent and partial or complete blockade of the epiphysial plate depending on the indications. This method is principally a less invasive procedure with few complications. CONCLUSION Careful preoperative assessment of the indications and planning, precise operative technique and attentive postoperative control investigations are absolutely essential for successful treatment.
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Affiliation(s)
- B Vogt
- Abteilung für Kinderorthopädie, Deformitätenrekonstruktion und Fußchirurgie, Universitätsklinikum Münster, Albert-Schweitzer-Campus 1, Gebäude A1, 48149, Münster, Deutschland,
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de Andrade Pereira B, Ackermann M, Chaudhary S, Vogel R, Vogt B, Dresch C, Fraefel C. Tolerance of activated pathogenic CD4+ T cells by transcriptional targeting of dendritic cells. Gene Ther 2015; 22:382-90. [PMID: 25739989 DOI: 10.1038/gt.2015.6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2014] [Revised: 12/02/2014] [Accepted: 01/15/2015] [Indexed: 01/30/2023]
Abstract
We have recently shown that targeted expression of myelin oligodendrocyte glycoprotein (MOG) to dendritic cells with self-inactivating-lentivirus vectors induces antigen-specific tolerance in naive antigen-specific CD4+ T cells and protects mice from experimental autoimmune encephalomyelitis (EAE). In the present study, we demonstrate that this approach also induces tolerance of activated antigen-specific CD4+ T cells and completely protects mice from passive EAE induction. Tolerance induction did not correlate with the depletion of the preactivated antigen-specific CD4+ T cells. However, upon isolation and in vitro re-stimulation at day 6 after adoptive transfer the MOG-specific CD4+ T cells from the non-tolerized mice produced large amounts of inflammatory cytokines, whereas those from tolerized mice did not. This unresponsiveness correlated with the upregulation of regulatory molecules associated with anergy and regulatory T cells (Tregs). The in vivo depletion of Tregs resulted in EAE susceptibility of the tolerized animals, suggesting that these cells have indeed a role in tolerance induction/maintenance.
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Affiliation(s)
| | - M Ackermann
- Institute of Virology, University of Zürich, Zürich, Switzerland
| | - S Chaudhary
- Institute of Virology, University of Zürich, Zürich, Switzerland
| | - R Vogel
- Institute of Virology, University of Zürich, Zürich, Switzerland
| | - B Vogt
- Institute of Virology, University of Zürich, Zürich, Switzerland
| | - C Dresch
- Institute of Virology, University of Zürich, Zürich, Switzerland
| | - C Fraefel
- Institute of Virology, University of Zürich, Zürich, Switzerland
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Vogt B, Desgrippes A, Desfemmes F. Sonde JFil et MiniJFil : analyse des données de 280 patients et applications pratiques de la dilatation urétérale. Prog Urol 2014; 24:795-6. [DOI: 10.1016/j.purol.2014.08.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Eckert J, Piedmont S, Lichters M, Vogt B, Robra BP. Determinanten der Inanspruchnahme ärztlicher Leistungen aus Patientensicht anhand von Fallvignetten basierend auf EQ-5D™. Gesundheitswesen 2014. [DOI: 10.1055/s-0034-1386892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Athanasiou Y, Zavros M, Arsali M, Papazachariou L, Demosthenous P, Savva I, Voskarides K, Deltas C, Pierides A, Feriozzi S, Perrin A, West M, Nicholls K, Sunder-Plassmann G, Torras J, Neumann P, Cybulla M, Cofiell R, Kukreja A, Bedard K, Yan Y, Mickle A, Ogawa M, Bedrosian C, Faas S, Meszaros K, Pruess L, Gondan M, Ritz E, Schaefer F, Testa A, Spoto B, Leonardis D, Sanguedolce MC, Pisano A, Parlongo MR, Tripepi G, Mallamaci F, Zoccali C, Trujillano D, Bullich G, Ballarin J, Torra R, Estivill X, Ars E, Kleber ME, Delgado G, Grammer TB, Silbernagel G, Kraemer BK, Maerz W, Riccio E, Pisani A, Abdalla AA, Malone AF, Winn MP, Goodship T, Cronin C, Conlon PJ, Casserly LF, Nishio S, Sakuhara Y, Matsuoka N, Yamamoto J, Nakazawa D, Nakagakaki T, Abo D, Shibazaki S, Atsumi T, Mazzinghi B, Giglio S, Provenzano A, Becherucci F, Sansavini G, Ravaglia F, Roperto RM, Murer L, Lasagni L, Materassi M, Romagnani P, Schmidts M, Christou S, Cortes C, McInerney-Leo A, Kayserili H, Zankl A, Peter S, Duncan E, Wicking C, Beales PL, Mitchison H, Magestro M, Vekeman F, Nichols T, Karner P, Duh MS, Srivastava B, Van Doorn-Khosrovani SBVW, Zonnenberg BA, Musetti C, Quaglia M, Ghiggeri GM, Fogazzi GB, Settanni F, Boldorini RL, Lazzarich E, Airoldi A, Izzo C, Giordano M, Stratta P, Garrido P, Fernandes JC, Ribeiro S, Belo L, Costa EC, Reis F, Santos-Silva A, Youssef DM, Alshal AS, Salah K, Rashed AE, Kingswood JC, Jozwiak S, Belousova E, Frost M, Kuperman R, Bebin EM, Korf B, Flamini JR, Kohrman MH, Sparagana S, Wu JY, Berkowitz N, Miao S, Segal S, Ridolfi A, Bissler JJ, Franz DN, Oud MM, Van Bon BW, Bongers EM, Hoischen A, Marcelis CL, De Leeuw N, Mol SJ, Mortier G, Knoers NV, Brunner HG, Roepman R, Arts HH, Van Eerde AM, Van Der Zwaag B, Lilien MR, Renkema KY, De Borst MH, Van Haaften G, Giles RH, Navis GJ, Knoers NVAM, Lu KC, Su SL, Gigante M, Santangelo L, Diella S, Argentiero L, Cianciotta F, Martino M, Ranieri E, Grandaliano G, Giordano M, Gesualdo L, Fernandes J, Ribeiro S, Garrido P, Sereno J, Costa E, Reis F, Santos-Silva A, Chub O, Aires I, Polidori D, Santos AR, Brito Costa A, Simoes C, Rueff J, Nolasco F, Calado J, Van Der Tol L, Biegstraaten M, Florquin S, Vogt L, Van Den Bergh Weerman MA, Hollak CE, Hughes DA, Lachmann RH, Oliveira JP, Ortiz A, Svarstad E, Terryn W, Tondel C, Waldek S, Wanner C, West ML, Linthorst GE, Kaesler N, Brandenburg V, Theuwissen E, Vermeer C, Floege J, Schlieper G, Kruger T, Xydakis D, Goulielmos G, Antonaki E, Stylianoy K, Sfakianaki M, Papadogiannakis A, Dafnis E, Mdimegh S, Ben Hadj Mbarek - Fredj I, Moussa A, Omezzine A, Zellama D, Mabrouk S, Zouari N, Hassayoun S, Chemli J, Achour A, Bouslama A, Abroug S, Spoto B, Leonardis D, Politi C, Pisano A, Cutrupi S, Testa A, Parlongo RM, D'Arrigo G, Tripepi G, Mallamaci F, Zoccali C, Mdimegh S, Ben Hadj Mbarek - Fredj I, Moussa A, Omezzine A, Mabrouk S, Zouari N, Hassayoun S, Chemli J, Zellama D, Achour A, Bouslama A, Abroug S, Hohenstein-Scheibenecker K, Schmidt A, Stylianou KG, Kyriazis J, Androvitsanea A, Tzanakakis M, Maragkaki E, Petrakis J, Stratakis S, Poulidaki R, Vardaki E, Petra C, Statigis S, Perakis K, Daphnis E, Cybulla M, West M, Nicholls K, Torras J, Neumann P, Sunder-Plassmann G, Feriozzi S, Metzinger-Le Meuth V, Taibi F, M'Baya-Moutoula E, Louvet L, Massy Z, Metzinger L, Mani LY, Sidler D, Vogt B, Nikolskaya N, Cox JA, Kingswood JC, Smirnov A, Zarayski M, Kayukov I, Karunnaya H, Sipovski V, Kukoleva L, Dobronravov V. GENETIC DISEASES AND MOLECULAR GENETICS. Nephrol Dial Transplant 2014. [DOI: 10.1093/ndt/gfu162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Heisterkamp M, Titze S, Lorenzen J, Eckardt KU, Koettgen A, Kielstein JT, Bouquegneau A, Vidal-Petiot E, Vrtovsnik F, Cavalier E, Krzesinski JM, Flamant M, Delanaye P, Anguiano L, Riera M, Pascual J, Barrios C, Betriu A, Valdivielso JM, Fernandez E, Soler MJ, Denys MA, Viaene A, Goessaert AS, Delanghe J, Everaert K, Kim YS, Choi MJ, Deok JY, Kim SG, Bevc S, Hojs N, Hojs R, Ekart R, Gorenjak M, Puklavec L, Bevc S, Hojs N, Hojs R, Ekart R, Gorenjak M, Puklavec L, Piskunowicz M, Hofmann L, Zurcher E, Bassi I, Zweiacker C, Stuber M, Narkiewicz K, Vogt B, Burnier M, Pruijm M, Rusu E, Zilisteanu D, Atasie T, Circiumaru A, Carstea F, Ecobici M, Rosca M, Tanase C, Mihai S, Voiculescu M, Kim YS, Jeon YD, Choi MJ, Kim SG, Polenakovic M, Pop-Jordanova N, Hung SC, Tarng DC, Tuta L, Stanigut A, Mesiano P, Rollino C, Ferro M, Beltrame G, Massara C, Quattrocchio G, Borca M, Bazzan M, Roccatello D, Maksudova A, Urasaeva LI, Khalfina TN, Zilisteanu D, Rusu E, Atasie T, Ecobici M, Circiumaru A, Carstea F, Rosca M, Tanase C, Mihai S, Voiculescu M, Tekce H, Kin Tekce B, Aktas G, Alcelik A, Sengul E, Lindic J, Purg D, Skamen J, Krsnik M, Skoberne A, Pajek J, Kveder R, Bren A, Kovac D, Kin Tekce B, Tekce H, Aktas G, Delgado G, Drechsler C, Wanner C, Blouin K, Pilz S, Tomaschitz A, Kleber ME, Willmes C, Krane V, Marz W, Ritz E, Van Gilst WH, Van Der Harst P, De Boer RA, Scholze A, Petersen L, Hocher B, Rasmussen LM, Tepel M, De Paula EA, Vanelli CP, Caminhas MS, Soares BC, Bassoli FA, Da Costa DMN, Lanna CMM, Galil AGS, Colugnati FAB, Costa MB, Bastos MG, De Paula RB, Santoro D, Zappulla Z, Alibrandi A, Tomasello Andulajevic M, Licari M, Baldari S, Buemi M, Cernaro V, Campenni A, Pallet N, Chauvet S, Levi C, Meas-Yedid V, Beaune P, Thevet E, Karras A, Santos S, Malheiro J, Campos A, Pedroso S, Santos J, Cabrita A, Mayor MM, Ayala R, Ramos C, Franco S, Guillen R, Kim JS, Yang JW, Han BG, Choi SO, Tudor MN, Navajas Martinez MF, Vaduva C, Maria DT, Mota E, Clari R, Mongilardi E, Vigotti FN, Consiglio V, Scognamiglio S, Nazha M, Roggero S, Piga A, Piccoli G, Mukhopadhyay P, Patar K, Chaterjee N, Ganguly K. CKD LAB METHODS, PROGRESSION & RISK FACTORS 1. Nephrol Dial Transplant 2014. [DOI: 10.1093/ndt/gfu145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Abstract
Pulmonary function testing is performed in children and infants with the aim of documenting lung development with age and making diagnoses of lung diseases. In children and infants with an established lung disease, pulmonary function is tested to assess the disease progression and the efficacy of therapy. It is difficult to carry out the measurements in this age group without disturbances, so obtaining results of good quality and reproducibility is challenging. Young children are often uncooperative during the examinations. This is partly related to their young age but also due to the long testing duration and the unpopular equipment. We address a variety of examination techniques for lung function assessment in children and infants in this review. We describe the measuring principles, examination procedures, clinical findings and their interpretation, as well as advantages and limitations of these methods. The comparability between devices and centres as well as the availability of reference values are still considered a challenge in many of these techniques. In recent years, new technologies have emerged allowing the assessment of lung function not only on the global level but also on the regional level. This opens new possibilities for detecting regional lung function heterogeneity that might lead to a better understanding of respiratory pathophysiology in children.
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Affiliation(s)
- B Vogt
- Department of Anaesthesiology and Intensive Care Medicine, University Medical Centre Schleswig-Holstein, Campus Kiel, Kiel, Germany
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Vogt B, Desgrippes A, Desfemmes FN. [Pigtail suture stent: decisive progress towards double-pigtail stent tolerance and unexpected properties of the suture in the ureter]. Prog Urol 2014; 24:441-50. [PMID: 24861684 DOI: 10.1016/j.purol.2013.12.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2013] [Revised: 11/13/2013] [Accepted: 12/22/2013] [Indexed: 11/28/2022]
Abstract
OBJECTIVE Double-pigtail stent intolerance reduces the quality of life of patients. By decreasing the amount of material within the bladder, it should be possible to attenuate the symptoms linked to the stent. We evaluated the tolerance of a new stent with a dedicated questionnaire. PATIENTS ET METHODS The major innovation of the pigtail suture stent (PSS and MiniPSS) was in the replacement of the lower part of the double-pigtail stent with a 0.3 F suture. One hundred and eight patients agreed to be fitted with a PSS. The double-pigtail stents of 24 patients complaining strongly of symptoms were replaced with PSS (group 1) and sixty-eight other patients were fitted directly with the PSS after an endoscopic intervention on the ureter (groups 2 and 3). Sixteen patients with non-obstructive kidney stone received MiniPSS (group 4). RESULTS Completed questionnaires were obtained from 94 patients. In group 1, the replacement of the double-pigtail stent with a PSS significantly decreased urinary symptom scores (34.4±9.0 vs 20.3±7.4, P<0.0000007), and pain scores (10.1±5.1 vs 4.8±3.2, P=0.0001). The scores of the two first groups fitted with a PSS were similar. Following PSS or MiniPSS implantation, a clear dilation of the ureteral meatus was probably induced by the sutures, facilitating the introduction of an ureteroscope or a flexible ureteroscope sheath (12 F). Following extracorporeal shockwave lithotripsy, the stone fragments gradually slid down the PSS sutures, without renal colic. CONCLUSION The PSS seems to improve the tolerance of ureteral stent. Unexpectedly, following PSS implantation, we observe a clear dilation of the ureter. We believe that use of a double-pigtail stent should no longer be considered the only way to drain the ureter. Instead, the form of the stent should depend on the patient's disease. LEVEL OF EVIDENCE 5.
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Affiliation(s)
- B Vogt
- Service d'urologie, polyclinique de Blois, 1, rue Robert-Debré, 41260 La Chaussée-Saint-Victor, France.
| | - A Desgrippes
- Service d'urologie, polyclinique de Blois, 1, rue Robert-Debré, 41260 La Chaussée-Saint-Victor, France
| | - F-N Desfemmes
- Service d'urologie, polyclinique de Blois, 1, rue Robert-Debré, 41260 La Chaussée-Saint-Victor, France
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Artunc F, Azaz A, Haenisch N, Roerden M, Cordts T, Arnold F, Kerjaschki D, Ruegg M, Hall M, Huber T, Grahammer F, Mordasini D, Maillard M, Hummler E, Burnier M, Vogt B. Novel epithelial cell models. Nephrol Dial Transplant 2013. [DOI: 10.1093/ndt/gft170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Stracke S, Sonntagbauer M, Aymanns C, Dabers T, Cammerer G, Henne-Bruns D, Wurl P, Keller F, Floege J, Covic A, Ketteler M, Rastogi A, Chong E, Lisk L, Sprague S, Ketteler M, Floege J, Rastogi A, Sprague S, Gaillard S, Lopfe M, Wilhelm M, Covic A, Chong E, Funk F, Kalia V, Willsie S, Winkle P, Block GA, Persky MS, Shamblin BM, Baltazar MF, Comelli MC, Lu YA, Liu YC, Lee SY, Hsu HH, Chen YC, Yu CC, Hung CC, Yang CW, Dixit V, Cheng L, Zhang J, Tonkin E, Jaladi R, Obalapur P, Dodda S, Shrivastava W, Dama S, Kesana S, Fry D, Rubas W, Martin D, Riggs J, Kantak S, Harrison S, Doberstein S, Tartaglione L, Pasquali M, Leonangeli C, Mandanici G, Muci ML, Rotondi S, Silas S, Mazzaferro S, Fusaro M, Noale M, Tripepi G, Piccoli A, Naso A, Giannini S, Miozzo D, Venturelli C, Pica A, Brunori G, Cristofaro R, Gallieni M, Shin JH, Kim SH, Yu SH, Martins J, Castro JH, Vogt B, Oliveira R, Jorgetti V, Caramori JT, Scully P, O'Flaherty D, Sankaralingam A, Hampson G, Goldsmith D, Hadjiyannakos D, Milatos G, Filiopoulos V, Sonikian M, Karatzas I, Vlassopoulos D, Ullah A, Abdulnabi K, Gallagher P, Khalil A, Alexander J, Mishra V, Pai P, Kang GW, Ahn KS, Lee IH. CKD-MBD - A. Nephrol Dial Transplant 2013. [DOI: 10.1093/ndt/gft110] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Borras M, Roig J, Betriu A, Vilar A, Hernandez M, Martin M, Fernandez ED, Dounousi E, Kiatou V, Papagianni A, Zikou X, Pappas K, Pappas E, Tatsioni A, Tsakiris D, Siamopoulos KC, Kim JK, Kim Y, Kim SG, Kim HJ, Ahn SY, Chin HJ, Oh KH, Ahn C, Chae DW, Yazici R, Altintepe L, Bakdik S, Guney I, Arslan S, Topal M, Karagoz A, Stefan G, Mircescu G, Capusa C, Stancu S, Petrescu L, Alecu S, Nedelcu D, Bennett AHL, Pham H, Garrity M, Magdeleyns E, Vermeer C, Zhang M, Ni Z, Zhu M, Yan J, Mou S, Wang Q, Qian J, Saade A, Karavetian M, ElZein H, de Vries N, de Haseth DE, Lay Penne E, van Dam B, Bax WA, Bots ML, Grooteman MPC, van den Dorpel RA, Blankenstijn PJ, Nube MJ, Wee PM, Park JH, Jo YI, Lee JH, Cianfrone P, Comi N, Lucisano G, Piraina V, Talarico R, Fuiano G, Toyonaga M, Fukami K, Yamagishi SI, Kaida Y, Nakayama Y, Ando R, Obara N, Ueda S, Okuda S, Granatova J, Havrda M, Hruskova Z, Tesar V, Viklicky O, Rysava R, Rychlik I, Kratka K, Honsova E, Vernerova Z, Maluskova J, Vranova J, Bolkova M, Borecka K, Benakova H, Zima T, Lu KC, Yang HY, Su SL, Cao YH, Lv LL, Liu BC, Zeng R, Gao XF, Deng YY, Boelaert J, t' Kindt R, Glorieux G, Schepers E, Jorge L, Neirynck N, Lynen F, Sandra P, Sandra K, Vanholder R, Yamamoto T, Nameta M, Yoshida Y, Uhlen M, Shi Y, Tang J, Zhang J, An Y, Liao Y, Li Y, Tao Y, Wang L, Koibuchi K, Tanaka K, Aoki T, Miyagi M, Sakai K, Aikawa A, Martins AR, Branco PQ, Serra FM, Matias PJ, Lucas CP, Adragao T, Duarte J, Oliveira MM, Saraiva AM, Barata JD, Masola V, Zaza G, Granata S, Proglio M, Pontrelli P, Abaterusso C, Schena F, Gesualdo L, Gambaro G, Lupo A, Pruijm M, Hofmann L, Stuber M, Zweiacker C, Piskunowicz M, Muller ME, Vogt B, Burnier M, Togashi N, Yamashita T, Mita T, Ohnuma Y, Hasegawa T, Endo T, Tsuchida A, Ando T, Yoshida H, Miura T, Bevins A, Assi L, Ritchie J, Jesky M, Stringer S, Kalra P, Hutchison C, Harding S, Cockwell P, Viccica G, Cupisti A, Chiavistelli S, Borsari S, Pardi E, Centoni R, Fumagalli G, Cetani F, Marcocci C, Scully P, O'Flaherty D, Sankaralingam A, Hampson G, Goldsmith DJ, Pallet N, Chauvet S, Beaune P, Nochy D, Thervet E, Karras A, Bertho G, Gallyamov MG, Saginova EA, Severova MM, Krasnova TN, Kopylova AA, Cho E, Jo SK, Kim MG, Cho WY, kim HK, Trivin C, Metzger M, Boffa JJ, Vrtovsnik F, Houiller P, Haymann JP, Flamant M, Stengel B, Thervet E, Roozbeh J, Yavari V, Pakfetrat M, Zolghadr AA, Kim CS, Kim MJ, Kang YU, Choi JS, Bae EH, Ma SK, Kim SW, Lemoine S, Guebre-Egziabher F, Dubourg L, Hadj-Aissa A, Blumberg S, Katzir Z, Biro A, Cernes R, Barnea Z, Vasquez D, Gordillo R, Aller C, Fernandez B, Jabary N, Perez V, Mendiluce A, Bustamante J, Coca A, Goek ON, Sekula P, Prehn C, Meisinger C, Gieger C, Suhre K, Adamski J, Kastenmuller G, Kottgen A, Kuzniewski M, Fedak D, Dumnicka P, Solnica B, Kusnierz-Cabala B, Kapusta M, Sulowicz W, Drozdz R, Zawada AM, Rogacev KS, Hummel B, Fliser D, Geisel J, Heine GH, Kretschmer A, Volsek M, Krahn T, Kolkhof P, Kribben A, Bruck H, Koh ES, Chung S, Yoon HE, Park CW, Chang YS, Shin SJ, Deagostini MC, Vigotti FN, Ferraresi M, Consiglio V, Scognamiglio S, Moro I, Clari R, Daidola G, Versino E, Piccoli GB, Mammadrahim Agayev M, Mehrali Mammadova I, Qarib Ismayilova S, Anguiano L, Riera M, Pascual J, Barrios C, Betriu A, Valdivielso JM, Fernandez E, Soler MJ, Tsarpali V, Liakopoulos V, Panagopoulou E, Kapoukranidou D, Spaia S, Kostopoulou M, Michalaki A, Nikitidou O, Dombros N, Zhu F, Abba S, Flores-Gama C, Williams C, Cartagena C, Carter M, Kotanko P, Levin NW, Kolesnyk M, Stepanova N, Driyanska V, Stashevska N, Kundin V, Shifris I, Dudar I, Zaporozhets O, Keda T, Ishchenko M, Khil M, Choe JY, Nam SA, Kim J, Cha JH, Gliga ML, Irimescu CG, Caldararu CD, Gliga MG, Toma LV, Gomotarceanu A, Park Y, Kim Y, Jeon J, Kwon SK, Kim SJ, Kim SM, Kim HY, Montero N, Soler MJ, Barrios C, Marquez E, Berrada A, Arias C, Prada JA, Orfila MA, Mojal S, Vilaplana C, Pascual J, Vigotti FN, Attini R, Parisi S, Fassio F, Deagostini MC, Ghiotto S, Ferraresi M, Clari R, Biolcati M, Todros T, Piccoli GB, Jin K, Vaziri ND, Tramonti G, Romiti N, Chieli E, Maksudova AN, Khusnutdinova LA, Tang J, Shi Y, Zhang J, Li Y, An Y, Tao Y, Wang L, Reque JE, Quiroga B, Lopez JM, Verdallez UG, Garcia de Vinuesa M, Goicoechea M, Nayara PG, Arroyo DR, Luno J, Tanaka H, Flores-Gama C, Abbas SR, Williams C, Cartagena C, Carter M, Thijssen S, Kotanko P, Levin NW, Zhu F, Berthoux FC, Azzouz L, Afiani A, Ziane A, Mariat C, Fournier H, Kusztal M, Dzierzek P, Witkowski G, Nurzynski M, Golebiowski T, Weyde W, Klinger M, Altiparmak MR, Seyahi N, Trabulus S, Bolayirli M, Andican ZG, Suleymanlar G, Serdengecti K, Niculae A, Checherita IA, Neagoe DN, Ciocalteu A, Seiler S, Rogacev KS, Pickering JW, Emrich I, Fliser D, Heine G, Bargnoux AS, Obiols J, Kuster N, Fessler P, Badiou S, Dupuy AM, Ribstein J, Cristol JP, Yanagisawa N, Ando M, Ajisawa A, Tsuchiya K, Nitta K, Bouquegneau A, Cavalier E, Krzesinski JM, Delanaye P, Tominaga N, Shibagaki Y, Kida K, Miyake F, Kimura K, Ayvazyan A, Rameev V, Kozlovskaya L, Simonyan A, Scholze A, Marckmann P, Tepel M, Rasmussen LM, Hara M, Ando M, Tsuchiya K, Nitta K, Kanai H, Harada K, Tamura Y, Kawai Y, Al-Jebouri MM, Madash SA, Leonidovna Berezinets O, Nicolaevich Rossolovskiy A. Lab methods / biomarkers. Nephrol Dial Transplant 2013. [DOI: 10.1093/ndt/gft108] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Zhao Z, Vogt B, Falkenberg C, Weiler N, Möller K, Frerichs I. Customized electrical impedance tomography based analysis of regional lung function: a feasibility study. ACTA ACUST UNITED AC 2013; 58 Suppl 1:/j/bmte.2013.58.issue-s1-E/bmt-2013-4131/bmt-2013-4131.xml. [DOI: 10.1515/bmt-2013-4131] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Schiedel F, Vogt B, Wacker S, Pöpping J, Bosch K, Rödl R, Rosenbaum D. Walking ability of children with a hexapod external ring fixator (TSF®) and foot plate mounting at the lower leg. Gait Posture 2012; 36:500-5. [PMID: 22682788 DOI: 10.1016/j.gaitpost.2012.05.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2011] [Revised: 05/01/2012] [Accepted: 05/05/2012] [Indexed: 02/02/2023]
Abstract
Wearing an external fixator for several months can be expected to profoundly affect the ability to walk, but, in principle, full weight-bearing is possible during corrective procedures with the Taylor Spatial Frame (TSF). The present prospective cohort study was conducted to assess whether patients are able to walk with or without crutches during treatment with a TSF on the lower leg. Twenty-four patients (10 girls, 14 boys; average age 11 years, range 6-17) scheduled for fixator surgery with osteotomies in the lower leg and foot mounting were included. Dynamic foot loading during free walking was measured with plantar pressure measurements. The contact area, contact time and contact pressure on the foot plate were recorded and normalized to body weight. In the first postoperative week, all patients needed crutches and 67% showed partial weight-bearing. At the second measurement, about 6 weeks after surgery, 21% of the patients could walk without crutches and 58% were partially weight-bearing with crutches. On the day before fixator removal, 50% of the patients were fully weight-bearing without crutches and 38% were partially weight-bearing, but 12% could not bear any weight or were unable to walk. When a ring fixator is used to correct lower leg deformity and prevent equinus, there is minimal risk of complete dependence and abasia. This study shows that up to 88% of the pediatric patients are able to walk while wearing the fixator. Already a few days after surgery, two-thirds of the patients were partially weight-bearing with crutches, and only 12% needed a wheelchair and were not able to walk with the fixator.
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Affiliation(s)
- F Schiedel
- Department of Pediatric Orthopedics, Deformity Correction and Foot Surgery, Münster University Hospital, Münster, Germany.
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Susla O, Shin HS, Jung YS, Rim H, Speer T, Owala FO, Razawi M, Holy E, Ferdinand B, Danilo F, Luscher TF, Tanner FC, Markaki A, Kyriazis J, Petrakis I, Mavroeidi V, Perakis K, Fragkiadakis GA, Venyhaki M, Tzanakakis M, Vardaki E, Maraki K, Doskas T, Daphnis E, Bregman R, Vale B, Lemos C, Kawakami L, Silva MI, Zhu F, Kaysen G, Kotanko P, Abbas SR, Dou Y, Heymsfield S, Levin NW, Turkmen K, Kayikcioglu H, Guney I, Altintepe L, Ozbek O, Tonbul HZ, Kaysen GA, Kaysen GA, Usvyat LA, Thijssen S, Levin NW, Kotanko P, Mutluay R, Konca Degertekin C, Derici U, Yilmaz MI, Akkiyal F, Gultekin S, Gonen S, Deger SM, Arinsoy T, Sindel S, Hueso M, Torras J, Carrera M, Vidal A, Navarro E, Rivas I, Rama I, Bolanos N, Varela C, Martinez-Castelao A, Grinyo JM, Harving F, Svensson M, Schmidt EB, Jorgensen KA, Christensen JH, Park JH, Koo EH, Kim HK, Kim MS, Cho AJ, Lee JE, Jang HR, Huh W, Kim DJ, Kim YG, Oh HY, Zawiasa A, Nowak D, Nowicki M, Nathalie N, Griet G, Eva S, Raymond V, Ng KP, Stringer S, Jesky M, Dutton M, Ferro C, Cockwell P, Jia T, Gama Axelsson T, Lindholm B, Heimburger O, Barany P, Stenvinkel P, Qureshi AR, Quiroga B, Goicoechea M, Garcia de Vinuesa S, Verdalles U, Reque J, Panizo N, Arroyo D, Santos A, Macias N, Luno J, Honda H, Hirano T, Ueda M, Kojima S, Mashiba S, Hayase Y, Michihata T, Akizawa T, Gungor O, Sezis Demirci M, Kircelli F, Tatar E, Hur E, Sen S, Toz H, Basci A, Ok E, Sepe V, Albrizio P, Gnecchi M, Cervio E, Esposito P, Rampino T, Libetta C, Dal Canton A, Faria MS, Faria MS, Ribeiro S, Silva G, Nascimento H, Rocha-Pereira P, Miranda V, Vieira E, Santos R, Mendonca D, Quintanilha A, Costa E, Belo L, Santos-Silva A, Pruijm M, Pruijm M, Hofmann L, Heuvelin E, Forni V, Coristine A, Stuber M, Vogt B, Burnier M, Chiappini MG, Ammann T, Muzzi L, Grosso A, Sabry A, Bansal V, Hoppensteadt D, Jeske W, Fareed J. Nutrition, inflammation and oxidative stress - CKD 1-5. Nephrol Dial Transplant 2012. [DOI: 10.1093/ndt/gfs238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Kissling S, Wilson P, Ridel C, Burnier M, Vogt B. [What reasonable applications for regional citrate anticoagulation in renal replacement therapy?]. Rev Med Suisse 2012; 8:452-456. [PMID: 22452130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Regional citrate anticoagulation of the extracorporeal circuits (CRA) experienced considerable growth over the past decade. This development is partly explained by the significant progresses made in the field of bioengineering. These allow a secure administration of citrate, while an increasing availability of ionized calcium measurement at the bedside allows reactivity in monitoring the treatment. An increasing severity of the medical condition of patients requiring blood purification treatment gives more contrast to the profile of patient who may benefit from a CRA. If some methods of renal replacement therapy are well suited to this mode of anticoagulation, others are, to date, only at the stage of development and are applied under close medical supervision.
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Affiliation(s)
- S Kissling
- Service de néphrologie et hypertension, Départment de médecine interne CHUV, Lausanne.
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Amstutz D, Dupertuis N, Ciutto L, Donzallaz Lucas F, Depeyre J, Vogt B, Coti Bertrand P. P202 Impact de l’organisation institutionnelle sur le déficit protéino-énergétique des patients dialysés hospitalisés. NUTR CLIN METAB 2011. [DOI: 10.1016/s0985-0562(11)70269-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Pruijm M, Ponte B, Hofmann L, Vogt B, Eisenberger U, Meuwly JY, Burnier M. [New radiological techniques to investigate patients suffering from chronic kidney disease]. Rev Med Suisse 2011; 7:505-509. [PMID: 21462521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Radiological investigations using gadolinium or intravenous iodinated contrast products are used cautiously in patients suffering from chronic kidney disease because of their risk of acute kidney injury and systemic nephrogenic fibrosis. In this article, we review several radiological alternatives that can be useful to obtain renal anatomical and/or functional information in this patient population. The basic principles, indications, and advantages and limitations of Doppler ultrasound with measurement of the resistance index, contrast-enhanced ultrasound, and a technique called BOLD-MRI (blood-oxygenation level dependent-MRI) are discussed.
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Affiliation(s)
- M Pruijm
- Service de néphrologie, CHUV, Lausanne.
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Vogt B, Fischer K, Starflinger J, Laurien E, Schulenberg T. Concept of a pressurized water reactor cooled with supercritical water in the primary loop. Nuclear Engineering and Design 2010. [DOI: 10.1016/j.nucengdes.2010.06.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Thomas D, Swart E, Vogt B, Robra B. Können Leistungsverlagerungen zwischen dem stationären und dem ambulanten Sektor in der Morbiditätsbezogenen Gesamtvergütung quantifiziert werden? Gesundheitswesen 2010. [DOI: 10.1055/s-0030-1266242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Zhou H, Wiebe C, Janik J, Vogt B, Harter A, Dalal N, Gardner J. Spin glass transitions in the absence of chemical disorder for the pyrochlores A2Sb2O7 (A=Mn, Co, Ni). J SOLID STATE CHEM 2010. [DOI: 10.1016/j.jssc.2010.01.025] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Vogt B, Warncke M, Micheel B, Sheriff A. Lentiviral gene transfer of CTLA4 generates B cells with reduced costimulatory properties. Autoimmunity 2009; 42:380-2. [DOI: 10.1080/08916930902832470] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Schroeter ML, Vogt B, Frisch S, Becker G, Seese A, Barthel H, Scheid R, Villringer A, Sabri O. Dissociating Behavioral Disorders in Dementia - An FDG-PET Study. Neuroimage 2009. [DOI: 10.1016/s1053-8119(09)70700-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Dukart J, Mueller K, Horstmann A, Vogt B, Barthel H, Becker G, Frisch S, Villringer A, Sabri O, Schroeter ML. Differential Effects of Global and Cerebellar Normalization on Dementia in FDG-PET Studies. Neuroimage 2009. [DOI: 10.1016/s1053-8119(09)71016-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Kissling S, Schneider A, Eggimann P, Qué YA, Burnier M, Vogt B. [Intermittent hemodialysis in the intensive care setting]. Rev Med Suisse 2009; 5:445-450. [PMID: 19317310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Acute renal failure is a frequent and potentially lethal disease in intensive care units. Renal replacement therapy (RRT) is often required. Either intermittent or continuous methods of RRT can be used. When to start a RRT and which method to use is not always clearly defined and a global evaluation of the clinical situation is required. The choice of the modality of RRT will be up to the general clinical context, hemodynamic stability, the type of molecules to be cleared and the haemorrhagic risk as much as habits and available resources. No study currently showed a superiority of either continuous or intermittent renal replacement therapy. The collaboration between intensive care specialists and nephrologists allows an optimized choice for a given patient and allow better move from one technic to another if required.
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Affiliation(s)
- S Kissling
- Service de néphrologie et Consultation d'hypertension, CHUV, 1011 Lausanne.
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Coltamai L, Bucher M, Maillard MP, Shukla U, Bohidar N, Haskell L, Bertelsen K, Fedgchin M, Vogt B, Burnier M. Vascular Effects of RWJ-676070, a Selective Combined V1a/V2 Vasopressin Receptor Antagonist. Clin Pharmacol Ther 2008; 85:145-8. [DOI: 10.1038/clpt.2008.217] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Pruijm MT, Vogt B, Cherpillod A, Burnier M. [Plasmapheresis, a safe treatment when applied to the correct indication and with awareness of the complications]. Ned Tijdschr Geneeskd 2008; 152:2261-2266. [PMID: 19009872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Plasmapheresis is an extracorporeal technique used to remove pathogenic macromolecules from the circulation, particularly autoantibodies. This is illustrated in 2 female patients. The first patient, aged 61 years, was treated successfully with non-selective plasmapheresis for acute humoral rejection shortly after receiving a renal allograft. In the second patient, aged 82 years, plasmapheresis for refractory myasthenia gravis had to be stopped because of bradycardia and hypotension during the procedure. She was treated successfully with immunoglobulins. Plasmapheresis is used to treat neurological, renal, haematological and systemic disorders. In nonselective plasmapheresis, the plasma is replaced with saline and albumin or donor plasma. In selective plasmapheresis a highly selective filter is used to remove a specific, pathogenic macromolecule. Adverse effects of the treatment include disturbances of the acid-base equilibrium or the coagulation, and allergic reactions. Most of these complications, however, can nowadays be avoided.
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Affiliation(s)
- M T Pruijm
- Centre Hospitalier Universitaire Vaudois, Service de Néphrologie et Consultations d'Hypertension, Département de Médecine, Rue du Bugnon 17, 1011 Lausanne, Zwitserland.
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Pruijm MT, Cherpillod A, Vogt B, Burnier M. [Plasmapheresis: technique, complications and indications]. Rev Med Suisse 2008; 4:581-588. [PMID: 18402016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Plasmapheresis is an extracorporeal technique used to remove pathogenic macromolecules from the plasma. Plasmapheresis is used to treat neurological, renal, hematological as well as systemic diseases, which explains why many different specialties in medicine can be involved. Plasmapheresis has evolved in forty years into a frequently used, relatively safe procedure. Nowadays a large spectrum of different techniques exists, each with its own possible complications. In this article we will give an overview of these different techniques, their complications and indications, in order to familiarize the reader with this fascinating treatment.
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Affiliation(s)
- M T Pruijm
- Service de néphrologie et consultations d'hypertension, CHUV, 1011 Lausanne
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Abstract
BACKGROUND The purpose of this study was to examine whether use of small intestinal submucosa in microsurgical urethroplasty in Wistar rats represents an alternative. METHODS In 20 Wistar rats microsurgical urethroplasty with small intestinal submucosa was done to repair distal or proximal urethral defects. Four weeks later urethral calibration and urethrography were performed in addition to histological studies. RESULTS AND CONCLUSIONS Of the 20 animals, 19 survived the observation period without evidence of fistulas, strictures, stenoses, or necroses. The histological results confirmed an intact tissue layer.
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Affiliation(s)
- M Beintker
- Urologische Klinik, Südharz-Krankenhaus gGmbH, Kochstrasse 39, 99734 Nordhausen.
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Kissling S, Vogt B, Burnier M. [Previous and new concepts in the management of symptomatic hyponatraemia]. Rev Med Suisse 2007; 3:583-4, 586-7. [PMID: 17436796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Hyponatraemia is an electrolytic disorder whose danger is often underestimated. The treatment of symptomatic hyponatraemia has been a subject of controversy for a long time. This disorder needs to be treated aggressively and cautiously because of the associated risk of definitive neurological lesions. Recently, a number growing of studies recognised the high incidence of a concurrent condition that has to be diagnosed and treated: hypoxia.
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Affiliation(s)
- S Kissling
- Service de néphrologie, CHUV, 1011 Lausanne.
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Abstract
Kristalle werden häufig bei der Routine-Untersuchung des Urins gefunden und als Kristallurie bezeichnet. Meistens entsteht die Kristallurie durch eine vorübergehende Übersättigung des Urins. Aber auch Nahrungsmittel, oder Änderungen von pH und Temperatur des Urins, z.B. wenn der Urin nach der Miktion länger stehen geblieben ist, können zu Kristallurie führen. Diese zufällig beobachtete Kristallurie hat keinen Krankheitswert. Der Nachweis von Kristallen im Urin kann jedoch auch mit krankhaften Zuständen, wie Urolithiasis, primärer Hyperoxalurie und Ethylenglycol-Vergiftung einhergehen. Zusätzlich führen verschiedene Medikamente, vor allem antivirale Substanzen und Antibiotika unter bestimmten Umständen zu Kristallurie mit zum Teil schwerwiegenden Nierenschädigungen. In diesen Fällen ist die Untersuchung der Kristalle im Urin zum einen diagnostisch hilfreich zum anderen ist sie ein wichtiger Verlaufsparameter. Voraussetzung für die Beurteilung der Kristallurie ist die korrekte Probenaufbereitung, Bestimmung und Einordnung des Urin-pH und Kenntnis des mikroskopischen Verfahrens.
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Abstract
Marfan's syndrome is caused by mutations in the extracellular matrix protein fibrillin-1 with aortic aneurysm and dissection being its most life-threatening manifestations. Kidney transplantation from donors with Marfan's syndrome has never been reported in the literature, possibly because of reticences due to the underlying connective tissue disease. Here, we report two patients with end-stage renal disease, transplanted with the kidneys from a donor with Marfan's syndrome who died of aortic dissection and cerebral hemorrhage. After delayed graft function in both recipients, renal function normalized with no renovascular complications and negative proteinuria for 6 years in one patient and 2 years in the other patient, who died from an ischemic cerebrovascular insult. Kidneys from organ donors with Marfan's syndrome might be suitable for transplantation.
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Affiliation(s)
- S Farese
- Clinic and Policlinic of Nephrology and Hypertension, University Hospital Inselspital, Berne, Switzerland
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