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Ebert AK, Wolff F, Lackner J. ["Epidemiology, diagnosis, treatment and follow-up of the bladder exstrophy-epispadias complex"]. Urologie 2024; 63:141-148. [PMID: 38085295 DOI: 10.1007/s00120-023-02242-x] [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] [Subscribe] [Scholar Register] [Accepted: 11/13/2023] [Indexed: 02/10/2024]
Abstract
The development of the new S3 guideline "Epidemiology, diagnosis, treatment and follow-up of the bladder exstrophy-epispadias complex" was funded by the German Innovation Fund of the Federal Joint Committee (G-BA). Despite the relatively low level of evidence of the identified literature, a systematic approach and consistent evaluation of the literature enabled the formulation of a large number of evidence-based recommendations across a variety of topics. In addition, a patient guideline is under development in order to disseminate the guideline recommendations and to enhance self-management and understanding among patients and their relatives. A needs analysis had been carried out in order to adequately assess the topics that are most important for patients and relatives. Upon completion of the German guideline, an English translation in cooperation with the e‑UROGEN network is planned.
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Affiliation(s)
- Anne-Karoline Ebert
- Klinik für Urologie und Kinderurologie, Universitätsklinikum Ulm, Ulm, Deutschland.
| | - Franziska Wolff
- UroEvidence@Deutsche Gesellschaft Für Urologie, Berlin, Deutschland
| | - Julia Lackner
- UroEvidence@Deutsche Gesellschaft Für Urologie, Berlin, Deutschland
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Kranz J, Lackner J, Künzel U, Wagenlehner F, Schmidt S. Original Article Phytotherapy in Adults With Recurrent Uncomplicated Cystitis. Dtsch Arztebl Int 2022; 119:353-360. [PMID: 35101170 PMCID: PMC9472262 DOI: 10.3238/arztebl.m2022.0104] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 09/21/2021] [Accepted: 01/10/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND Uncomplicated urinary tract infections are among the commonest bacterial infections. Because antibiotic resistance is on the rise, there is growing interest in alternative, non-antimicrobial treatment options. This systematic review presents the current evidence on phytotherapy for the treatment and prevention of recurrent uncomplicated cystitis. METHODS A systematic search of the relevant literature from January 2011 to August 2021 was carried out in the MEDLINE, Embase, and Cochrane Library databases and in two clinical trial registries. The trials included in the present review are ran - domized controlled trials (RCTs) of phytotherapeutic agents as monotherapy or combination therapy, in comparison to placebo, no treatment, non-pharmacological treatment, or drug treatment without any phytotherapeutic component. Two of the authors independently selected the publications, extracted the data, and estimated the risk of bias using the Cochrane Risk of Bias Tool. RESULTS 12 RCTs with a total of 1797 female patients were included. A trial of acute therapy with Chinese plant-based medicine revealed non-inferiority to antibiotic treatment. Six trials of prophylaxis with cranberry products yielded mixed results with regard to efficacy against recurrent urinary tract infections. A trial of Seidlitzia rosmarinus for the prevention of cystitis showed that its use was associated with a lower cystitis rate than placebo (at 6 months: 33 vs. 73%, p <0.001). In all trials but one, the risk of bias was unclear or high. No standardized assessment of adverse events was carried out. CONCLUSION Phytotherapeutic agents are an option for the treatment and prevention of recurrent cystitis in women. Given the heterogeneous state of the evidence on phytotherapy, no dependable recommendations can now be made for the clinical management of these patients with respect to phytotherapeutic agents.
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Affiliation(s)
- Jennifer Kranz
- *Joint first authors
- Department of Urology and Pediatric Urology, University Medical Center RWTH Aachen, Aachen, Germany
- Department of Urology and Kidney Transplantation, Martin-Luther-University, Halle (Saale), Germany
- UroEvidence@German Urological Society, Berlin, Germany
| | - Julia Lackner
- *Joint first authors
- UroEvidence@German Urological Society, Berlin, Germany
| | - Ulrike Künzel
- UroEvidence@German Urological Society, Berlin, Germany
| | - Florian Wagenlehner
- Department of Urology, Pediatric Urology and Andrology, Justus Liebig University Giessen, Germany
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Busch J, Schmidt S, Albers P, Heinzelbecker J, Kliesch S, Lackner J, Pfister D, Ruf C, Winter C, Zengerling F, Beyersdorff D. Can magnetic resonance imaging replace conventional computerized tomography for follow-up of patients with testicular cancer? A systematic review. World J Urol 2022; 40:2843-2852. [PMID: 35037965 PMCID: PMC9712293 DOI: 10.1007/s00345-022-03931-6] [Citation(s) in RCA: 2] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Accepted: 01/05/2022] [Indexed: 12/30/2022] Open
Abstract
PURPOSE Follow-up protocols for patients with testicular cancer (TC) have significantly reduced the number of cross-sectional imaging studies to reduce radiation exposure. At present, it is unclear whether magnetic resonance imaging (MRI) could replace conventional computerized tomography (CT) imaging. The objective of this study is to summarize the scientific evidence on this topic and to review guideline recommendations with regard to the use of MRI. METHODS A systematic literature review was performed searching Medline and Cochrane databases for prospective studies on patients with TC in the follow-up care (last search in February 2021). Additionally, guideline recommendations for TC were screened. Data extraction and quality assessment of included studies were performed and used for a descriptive presentation of results. RESULTS A total of four studies including two ongoing trials were identified. Overall, the scientific evidence of prospective comparative studies is based on 102 patients. Data suggest that abdominal imaging with MRI can replace conventional CT for detection of lymph node metastasis of the retroperitoneum to spare radiation exposure and contrast media application. However, experienced radiologists are needed. Clinical guidelines are aware of the risk of diagnosis-induced secondary malignancy due to CT imaging and some have adapted their recommendations accordingly. Results of the two ongoing trials on 738 patients are expected soon to provide more reliable results on this topic. CONCLUSIONS There is growing evidence that abdominopelvic MRI imaging can replace CT imaging during follow-up of patients with TC in order to reduce radiation exposure and diagnosis-induced secondary malignancy.
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Affiliation(s)
- Jonas Busch
- grid.6363.00000 0001 2218 4662Department of Urology, Charité Universitaetsmedizin Berlin, Berlin, Germany ,grid.433867.d0000 0004 0476 8412Department of Urology, Vivantes Klinikum Am Urban, Dieffenbachstr. 1, 10967 Berlin, Germany
| | | | - Peter Albers
- grid.14778.3d0000 0000 8922 7789Department of Urology, University Hospital Düsseldorf, Düsseldorf, Germany
| | - Julia Heinzelbecker
- grid.411937.9Department of Urology and Paediatric Urology, Saarland University Medical Centre and Saarland University Faculty of Medicine, Homburg, Saar Germany
| | - Sabine Kliesch
- grid.16149.3b0000 0004 0551 4246Department of Clinical and Surgical Andrology, Centre of Reproductive Medicine and Andrology, University Hospital, Münster, Münster, Germany
| | - Julia Lackner
- UroEvidence@Deutsche Gesellschaft Für Urologie, Berlin, Germany
| | - David Pfister
- grid.411097.a0000 0000 8852 305XDepartment of Urology, University Hospital Cologne, Cologne, Germany
| | - Christian Ruf
- Department of Urology, Bundeswehrkrankenhaus (German Federal Armed Forces Hospital), Koblenz, Germany
| | | | - Friedemann Zengerling
- grid.410712.10000 0004 0473 882XDepartment of Urology, University Hospital Ulm, Ulm, Germany
| | - Dirk Beyersdorff
- grid.13648.380000 0001 2180 3484Clinic and Polyclinic for Diagnostic and Interventional Radiology and Nuclear Medicine, University Hospital Hamburg-Eppendorf, Hamburg, Germany
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Lackner J, Albrecht A, Mittler M, Marx A, Kreyenschmidt J, Hess V, Sauerwein H. Effect of feeding histidine and β-alanine on carnosine concentration, growth performance, and meat quality of broiler chickens. Poult Sci 2021; 100:101393. [PMID: 34530228 PMCID: PMC8445889 DOI: 10.1016/j.psj.2021.101393] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 07/02/2021] [Accepted: 07/20/2021] [Indexed: 11/23/2022] Open
Abstract
The high growth rates of modern broiler breeds increased the risk for novel breast muscle myopathies as serious quality issue, relevant for the industry. In affected muscles, a depletion of the dipeptides carnosine and anserine was reported. Therefore, this study was performed to test whether a supplementation of the precursors histidine and β-alanine, alone or in combination can increase the dipeptide content in the breast muscle and improve meat quality. Ross 308 broiler chickens were supplemented with 3 different histidine:lysine ratios (0.44, 0.54, 0.64) of standardized ileal digestible amino acids (SID) combined with 0 or 0.5% β-alanine in total. The birds’ performance was recorded at different ages: birds were slaughtered in 2 batches after 33 and 53 d of life. Meat quality was tested at different time points after slaughter on breast fillets stored aerobically. The concentration of the dipeptides and amino acids in blood plasma and muscle tissue was tested postmortem at 35 and 54 d. All performance and meat quality data, as well as peptide and amino acid concentrations, of the 2 × 2 × 3 randomized block design were analyzed separately for the influence of both supplements and for slaughter age. Moreover, the influence of storage time was analyzed separately for meat quality parameters. At both slaughter ages, lesser feed intake (P ≤ 0.005) and breast yield (P ≤ 0.05) were observed in the birds receiving β-alanine. A greater SID histidine:lysine ratio increased the carnosine concentrations in blood plasma (P < 0.001) and in skeletal muscle (P < 0.001), whereas β-alanine increased carnosine in plasma at 35 d only (P = 0.004). Anserine was increased in plasma and muscle of older birds (P = 0.003), whereas carnosine was reduced in muscle tissue (P < 0.001). The main impact on meat quality parameters was seen for the age of the birds and storage time of the fillets. In conclusion, the supplementation of histidine increased carnosine in breast muscle but both supplements showed only minor effects on meat quality.
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Affiliation(s)
- J Lackner
- Evonik Operations GmbH, Rodenbacher Chaussee 4, 63457 Hanau-Wolfgang, Germany; Institute of Animal Science, Rheinische Friedrich-Wilhelms-Universität Bonn, Katzenburgweg 7-9 53115 Bonn, Germany.
| | - A Albrecht
- Institute of Animal Science, Rheinische Friedrich-Wilhelms-Universität Bonn, Katzenburgweg 7-9 53115 Bonn, Germany
| | - M Mittler
- Institute of Animal Science, Rheinische Friedrich-Wilhelms-Universität Bonn, Katzenburgweg 7-9 53115 Bonn, Germany
| | - A Marx
- Evonik Operations GmbH, Rodenbacher Chaussee 4, 63457 Hanau-Wolfgang, Germany
| | - J Kreyenschmidt
- Institute of Animal Science, Rheinische Friedrich-Wilhelms-Universität Bonn, Katzenburgweg 7-9 53115 Bonn, Germany; Department of Fresh Produce Logistics, Hochschule Geisenheim University, Von-Lade-Straße 1 65366 Geisenheim, Germany
| | - V Hess
- Evonik Operations GmbH, Rodenbacher Chaussee 4, 63457 Hanau-Wolfgang, Germany
| | - H Sauerwein
- Institute of Animal Science, Rheinische Friedrich-Wilhelms-Universität Bonn, Katzenburgweg 7-9 53115 Bonn, Germany
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Abstract
This study aimed to estimate the disease burden of methylmercury for children born in Germany in the year 2014. Humans are mainly exposed to methylmercury when they eat fish or seafood. Prenatal methylmercury exposure is associated with IQ loss. To quantify this disease burden, we used Monte Carlo simulation to estimate the incidence of mild and severe mental retardation in children born to mothers who consume fish based on empirical data. Subsequently, we calculated the disease burden with the disability-adjusted life years (DALY)-method. DALYs combine mortality and morbidity in one measure and quantify the gap between an ideal situation, where the entire population experiences the standard life expectancy without disease and disability, and the actual situation. Thus, one DALY corresponds to the loss of one year of life in good health. The methylmercury-induced burden of disease for the German birth cohort 2014 was an average of 14,186 DALY (95% CI 12,915-15,440 DALY). A large majority of the DALYs was attributed to morbidity as compared to mortality. Of the total disease burden, 98% were attributed to mild mental retardation, which only leads to morbidity. The remaining disease burden was a result of severe mental retardation with equal proportions of premature death and morbidity.
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Affiliation(s)
- Julia Lackner
- Department of Exposure, Federal Institute for Risk Assessment, Berlin, Germany
| | - Michael Weiss
- Department of Exposure, Federal Institute for Risk Assessment, Berlin, Germany
| | | | - Matthias Greiner
- Department of Exposure, Federal Institute for Risk Assessment, Berlin, Germany
- Institute for Food Quality and Safety, University of Veterinary Medicine, Foundation, Hannover, Germany
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Lackner J, Schlichting D, Müller-Graf C, Greiner M. [Systematic Review of the Burden of Campylobacter-associated Disease]. Gesundheitswesen 2017; 81:e110-e120. [PMID: 29216670 DOI: 10.1055/s-0043-121885] [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] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Bacteria of the genus Campylobacter spp. are one of the most common causes of gastroenteritis and can lead to serious sequelae. Several studies have estimated the disease burden of Campylobacter spp. with the quantitative metric of disability-adjusted life years (DALY). The aim of this systematic review is to give an overview of the information available about different countries and periods for which DALYs were calculated and how the different results are comparable. One of the most important transmission pathways for Campylobacter spp. is food. Therefore, special attention was given to studies that only estimated the foodborne disease burden of Campylobacter bacteria. With a systematic search for the period 1/1996-6/2016, one worldwide and 21 country-specific publications of the WHO were identified. Because of the different methods and the quality of the different data sets, the estimated results of all Campylobacter health outcomes of the country-specific studies vary from 0.4 DALYs per 100000 people in France to 109 DALY per population in Poland. The calculation of the attributable foodborne disease burden was based on the estimations of the incidences of all Campylobacter health outcomes with the associated uncertainty for each result. So the estimations of the foodborne disease burden show a large range from 0.5 DALYs per 100000 people in Greek to 21.2 DALYs per 100000 people in New Zealand. This span can only be partially explained by the country-specific variability in the food production, the consumption behavior and the incidence of Campylobacter bacteria.
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Affiliation(s)
- Julia Lackner
- Exposition, Bundesinstitut fur Risikobewertung, Berlin
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Lackner J, Müller-Graf C, Greiner M. Schätzung der Krankheitslast durch Campylobacter spp. für das Jahr 2014 in Deutschland. Das Gesundheitswesen 2017. [DOI: 10.1055/s-0037-1605884] [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: 10/18/2022]
Affiliation(s)
- J Lackner
- Bundesinstitut für Risikobewertung, Epidemiologie, Statistik und mathematische Modellierung, Berlin
| | - C Müller-Graf
- Bundesinstitut für Risikobewertung, Epidemiologie, Statistik und mathematische Modellierung, Berlin
| | - M Greiner
- Bundesinstitut für Risikobewertung, Exposition, Berlin
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Abstract
Virtual environments are becoming ubiquitous, and used in a variety of contexts–from entertainment to training and rehabilitation. Recently, technology for making them more accessible to blind or visually impaired users has been developed, by using sound to represent visual information. The ability of older individuals to interpret these cues has not yet been studied. In this experiment, we studied the effects of age and sensory modality (visual or auditory) on navigation through a virtual maze. We added a layer of complexity by conducting the experiment in a rotating room, in order to test the effect of the spatial bias induced by the rotation on performance. Results from 29 participants showed that with the auditory cues, it took participants a longer time to complete the mazes, they took a longer path length through the maze, they paused more, and had more collisions with the walls, compared to navigation with the visual cues. The older group took a longer time to complete the mazes, they paused more, and had more collisions with the walls, compared to the younger group. There was no effect of room rotation on the performance, nor were there any significant interactions among age, feedback modality and room rotation. We conclude that there is a decline in performance with age, and that while navigation with auditory cues is possible even at an old age, it presents more challenges than visual navigation.
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Affiliation(s)
- S. Levy-Tzedek
- Recanati School for Community Health Professions, Department of Physical Therapy, Ben Gurion University of the Negev, Beer-Sheva, Israel
- Zlotowski Center for Neuroscience, Ben Gurion University of the Negev, Beer-Sheva, Israel
- * E-mail:
| | - S. Maidenbaum
- Department of Medical Neurobiology, Institute for Medical Research Israel-Canada, Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
| | - A. Amedi
- Department of Medical Neurobiology, Institute for Medical Research Israel-Canada, Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
- Department of Cognitive Science, Faculty of Humanities, Hebrew University of Jerusalem, Jerusalem, Israel
- Sorbonne Universités UPMC Univ Paris 06, Institut de la Vision, Paris, France
| | - J. Lackner
- Ashton Graybiel Spatial Orientation Laboratory, Department of Physiology, Brandeis University, Waltham, Massachusetts, United States of America
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Lackner J. Mediastinaltumoren im Kindesalter*. ROFO-FORTSCHR RONTG 2009. [DOI: 10.1055/s-0029-1226645] [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]
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Lackner J. Zur Röntgendiagnostik polytoper enchondraler Ossifikationsstörungen, bes.der Dysostosis multiplex Pfaundler-Hurler, der Knochenchondromatose und der Chondroangiopathia calcarea*. ROFO-FORTSCHR RONTG 2009. [DOI: 10.1055/s-0029-1212259] [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: 10/20/2022]
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Mukherji D, Lackner J, Wanderka N, Kardjilov N, Näth O, Jäger S, Schmitz F, Rösler J. Coating of meso-porous metallic membranes with oriented channel-like fine pores by pulsed laser deposition. Nanotechnology 2008; 19:065706. [PMID: 21730712 DOI: 10.1088/0957-4484/19/6/065706] [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] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
There is increasing demand to functionalize meso- and nanoporous materials by coating and make the porous substrate biocompatible or environmentally friendly. However, coating on a meso-porous substrate poses great challenges, especially if the pore aspect ratio is high. We adopted the pulsed laser deposition (PLD) method to coat Ni(3)Al-based meso-porous membranes, which were fabricated from a single-crystal Ni-based superalloy by a unique selective phase dissolution technique. These membranes were about 250 µm thick and had channel-like pores (∼200 nm wide) with very high aspect ratio. Two different coating materials, i.e. diamond-like carbon (DLC) and titanium, were used to coat these membranes. High energy C or Ti ions, produced in the plasma plume by the PLD process, penetrated the channel-like pores and deposited coatings on the pore walls deep inside the membrane. The thickness and the quality of coatings on the pore walls were examined using the dual-beam system. The coating thickness, of the order of 50 nm, was adherent to the pore walls and was quite uniform at different depths. The carbon and the Ti deposition behaved quite similarly. The preliminary experiments showed that the PLD is an adequate method for coating fine open cavities of complex geometry. Simulations based on stopping and the range of ions in matter (SRIM) calculations helped in understanding the deposition processes on pore walls at great depths.
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Affiliation(s)
- D Mukherji
- Technische Universität Braunschweig, IfW, Langer Kamp 8, D-38106 Braunschweig, Germany
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Kratzik C, Schatzl G, Lackner J, Marberger M. Transcutaneous high-intensity focused ultrasonography can cure testicular cancer in solitary testis. Urology 2006; 67:1269-73. [PMID: 16678890 DOI: 10.1016/j.urology.2005.12.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2005] [Revised: 12/01/2005] [Accepted: 12/01/2005] [Indexed: 10/24/2022]
Abstract
OBJECTIVES To report the long-term results in 7 patients (including the 5-year results in 3 patients) after high-intensity focused ultrasonography (HIFU) combined with irradiation to treat testicular tumors in a solitary testis. METHODS Transcutaneous HIFU ablation of testicular tumors is based on a technique using a piezoceramic transducer operating at 4.0 MHz with a site intensity of 1600 to 2000 W/cm2. In a Phase II trial, 7 patients with the typical sonographic pattern of a tumor in a solitary testis were treated with transcutaneous HIFU, as a minimally invasive organ-preserving approach, followed 6 weeks later by prophylactic testicular irradiation (range 18 to 20 Gy). The aim was to ablate the entire cancer in a single therapeutic HIFU session. In all 7 patients, the contralateral testis had previously been removed because of testicular cancer. RESULTS One patient received two cycles of chemotherapy for a single suspicious retroperitoneal lymph node diagnosed 6 months after HIFU. The other 6 protocol-treated patients remained tumor free at a mean follow-up of 42 months (range 3 to 93). One patient, who had refused postoperative irradiation, developed a recurrent tumor within 6 months. No patient showed any signs of clinical hypogonadism, and the International Index of Erectile Function score was normal for all patients. No androgen substitution was necessary. The only adverse effect noted was a small thermal lesion of the scrotum in 1 patient. CONCLUSIONS Despite the lack of tumor histologic examination, transcutaneous HIFU followed by irradiation permits a minimally invasive, organ-preserving, curative treatment for tumors in a solitary testis.
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Affiliation(s)
- C Kratzik
- Department of Urology, University of Vienna Medical School, Vienna, Austria
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Teichman JM, Schwesinger WH, Lackner J, Cossman RM. Holmium: YAG laser lithotripsy for gallstones. A preliminary report. Surg Endosc 2001; 15:1034-7. [PMID: 11605114 DOI: 10.1007/s004640080149] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2001] [Accepted: 03/05/2001] [Indexed: 12/31/2022]
Abstract
BACKGROUND Most retained gallstones can be extracted at the time of operative exploration or endoscopic retrograde cholangiopancreatography (ERCP). Infrequently, impaction or associated anatomic abnormalities may prevent their clearance. We assessed the efficacy of the holmium:YAG laser in managing retained biliary calculi that had proven refractory to the usual methods of extraction. METHODS Two patients with calculi impacted in the intrapancreatic common bile duct and one patient with residual stones in a nonfunctional gallbladder were treated with holmium:YAG laser lithotripsy. Two of these patients were treated under conscious sedation, and one received a general endotracheal anesthetic. Laser energy was delivered by a 272-mm optical fiber inserted through a 7-Fr fiberoptic endoscope. The ablative effects were monitored continuously via videoscopic. RESULTS All of the stones were cleared successfully in a single therapeutic setting. In one patient, fragments of the impacted intraductal stone were extracted with an endoscopic wire basket. In the other two patients, stone debris was completely cleared with saline irrigation. No complications developed, and all patients remained free of recurrence during a 6-month follow-up period. CONCLUSIONS The holmium:YAG laser is a multidisciplinary instrument that is safe and effective in the fragmentation of both urinary and biliary calculi. Because it can be delivered through a small-caliber fiberoptic endoscope, it should be particularly useful to laparoscopic surgeons who manage complicated biliary tract disease.
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Affiliation(s)
- J M Teichman
- Department of Surgery, University of Texas Health Science Center at San Antonio, 7703 Floyd Curl Drive, San Antonio, TX 78284-7845, USA.
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Banowsky L, Lackner J, Kothmann R, Wright F. Results of Single Kidneys From Donors Aged 9 to 60 Months: Results in 144 Adult Recipients. J Urol 1998. [DOI: 10.1016/s0022-5347(01)62855-6] [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: 11/28/2022]
Affiliation(s)
- L.H. Banowsky
- Transplant Department, San Antonio Community Hospital, San Antonio, Texas
| | - J. Lackner
- Transplant Department, San Antonio Community Hospital, San Antonio, Texas
| | - R. Kothmann
- Transplant Department, San Antonio Community Hospital, San Antonio, Texas
| | - F.H. Wright
- Transplant Department, San Antonio Community Hospital, San Antonio, Texas
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Stanney K, Salvendy G, Deisinger J, DiZio P, Ellis S, Ellison J, Fogleman G, Gallimore J, Singer M, Hettinger L, Kennedy R, Lackner J, Lawson B, Maida J, Mead A, Mon-Williams M, Newman D, Piantanida T, Reeves L, Riedel O, Stoffregen T, Wann J, Welch R, Wilson J, Witmer B. Aftereffects and sense of presence in virtual environments: formulation of a research and development agenda. Int J Hum Comput Interact 1998; 10:135-87. [PMID: 11542908 DOI: 10.1207/s15327590ijhc1002_3] [Citation(s) in RCA: 62] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
This report represents a committee summary of the current state of knowledge regarding aftereffects and sense of presence in virtual environments (VEs). The work presented in this article, and the proposed research agenda, are the result of a special session that was set up in the framework of the Seventh International Conference on Human Computer Interaction. Recommendations were made by the committee regarding research needs in aftereffects and sense of presence, and, where possible, priorities were suggested. The research needs were structured in terms of the short, medium, and long term and, if followed, should lead toward the effective use of VE technology. The 2 most critical research issues identified were (a) standardization and use of measurement approaches for aftereffects and (b) identification and prioritization of sensorimotor discordances that drive aftereffects. Identification of aftereffects countermeasures (i.e., techniques to assist users in readily transitioning between the real and virtual worlds), reduction of system response latencies, and improvements in tracking technology were also thought to be of critical importance.
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Affiliation(s)
- L H Banowsky
- Transplant Department, San Antonio Community Hospital, Texas 78229, USA
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Abstract
Auditory evoked potentials (AEPs) to click and name stimuli were recorded for 23 malnourished infants on admission to and 17 on discharge from hospital, together with those from age-matched controls. The number of peaks on the AEPs and the amplitude were examined. The malnourished infants' AEPs to click stimuli differed from the controls' on admission but not on discharge. The malnourished infants had smaller AEP amplitudes to name than to click stimuli on discharge while the controls did not. The data show that cortical AEPs in infants are affected by malnutrition.
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Affiliation(s)
- J M Flinn
- Department of Psychology, George Mason University, Fairfax, VA 22030
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Cheung BS, Money K, Howard I, Kirienko N, Johnson W, Lackner J, Dizio P, Evanoff J. Human ocular torsion during parabolic flights: an analysis with scleral search coil. Exp Brain Res 1992; 90:180-8. [PMID: 1521606 DOI: 10.1007/bf00229270] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.4] [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] [Indexed: 12/27/2022]
Abstract
Rotation of the eyes about the visual axis is known as ocular torsion. A lateral inclination (a "roll") of the head induces ocular torsion in the opposite direction, a response known as ocular counterrolling. For six subjects, we recorded the static (head still) and dynamic (head in oscillatory roll motion) ocular torsion in normal 1 g condition and also during the microgravity and hypergravity periods of parabolic flight, using the electromagnetic scleral search coil technique. With the head still, the direction and magnitude of torsion that occurred in response to microgravity and hypergravity differed substantially from one individual to another, but there was a significant difference in torsional magnitude between the microgravity and hypergravity periods, for all static head positions including the upright position. Under normal 1 g conditions, counterrolling compensated for about 16% of (voluntary) static head roll, while dynamic counterroll was much larger, up to 36% of head roll at 0.55 Hz. With increasing frequency of head oscillation between 0.33 Hz and 0.55 Hz, the gain of counterrolling increased and there was no change in the phase relationship. The gain of dynamic counterroll (in response to voluntary head rolling) was not significantly less in hypogravity, suggesting that on the ground at these frequencies the contribution of gravity and gravity receptors to this reflex is redundant: this reflex is probably driven by the semicircular canals. In some subjects, the torsional displacement in microgravity is accompanied by micro-torsional oscillatory motion.
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Affiliation(s)
- B S Cheung
- Defence and Civil Institute of Environmental Medicine, North York, Ontario, Canada
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Jahns R, Lackner J, Schröter J. [Persisting fonticulus metopicus in the adult - possibility of misinterpreting skull scintigrams]. ROFO-FORTSCHR RONTG 1980; 132:223-5. [PMID: 6448215 DOI: 10.1055/s-2008-1056557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Coraim F, Benzer H, Haider W, Lackner F, Spitzy KH, Lackner J, Lang E, Jenny H, Staffen A, Zehetbauer G. Posttraumatische Septikämie mit protrahiertem Verlauf und Erregerwechsel. Eur Surg 1977. [DOI: 10.1007/bf02601111] [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]
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Lackner J, Lackner F, Semsroth M. [Observations on the course of leucocytes in cardiac surgery under acupuncture-analgesia (author's transl)]. Anaesthesist 1976; 25:246-47. [PMID: 962038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
In 11 cardiosurgical patients leucocyte and differential counts were made performed during and after surgery. In some cases Lymphocyte transformation and migration inhibitiontest was studied. Comparing cases under conventional neurolept anaesthesia with those who had acupuncture Analgesia (electrostimulation) it appeared that the number of leucocytes was rising significantly higher in the latter, although the total number of lymphocytes remained constant. In lymphocyte transformation and mirgration inhibitiontest the observed decrease seemed to be less pronounced. Because a trial applying acupuncture in healthy persons resulted in no change in the number of leucocytes, it is suggested that the surgical trauma and related catecholamine release might be of importance. No definite result could be obtained.
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Cerni C, Lackner J, Lackner F. [The in vitro influence of dehydrobenzperidol (droperidol) on lymphocyte transformation (author's transl)]. Anaesthesist 1975; 24:412-5. [PMID: 1190423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Droperidol, an agent which is used in neurolept anaesthesia was tested in vitro for its effect upon the lymphocyte transformation test. Using peripheral blood of healthy volunteers droperidol was added simultaneously with PHA (phytohaemagglutinin) respectively after the lymphocytes had been incubated with PHA already for a period of 47 hours. Lymphocyte transformation was not impeded significantly when the first method was used, when clinically comparable concentrations were administered. When droperidol was added after PHA even lower concentrations caused an inhibition. The significance of these different modes of testing is discussed. It is concluded from these results that droperidol in clinical concentrations as used in Neurolept anaesthesia does not have a distinct and lasting influence upon lymphocyte transformation and thus has no considerable immunosuppressive effects.
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Lackner J, Schröter J. [Duodenal changes following 60 cobalt teletherapy for hypernephromas]. Strahlentherapie 1972; 144:691-6. [PMID: 4649030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Lackner J. Submuköse Magenzyste. ROFO-FORTSCHR RONTG 1969. [DOI: 10.1055/s-0029-1228686] [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]
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Lackner J. [Submucous stomach cyst]. Fortschr Geb Rontgenstr Nuklearmed 1969; 111:296-7. [PMID: 5390651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Lackner J. Dr. med. Kurt Baden zum 60. Geburtstag. ROFO-FORTSCHR RONTG 1960. [DOI: 10.1055/s-0029-1226529] [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]
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Lackner J. Die Forestiersche Erkrankung der Wirbelsäule *. ROFO-FORTSCHR RONTG 1959. [DOI: 10.1055/s-0029-1226363] [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]
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Lackner J, Blessing K. Zur Röntgendiagnostik polytoper enchondraler Ossifikationsstörungen des Erwachsenen. Mitteilungen zweier Fälle vom Typ Morquio. ROFO-FORTSCHR RONTG 1955. [DOI: 10.1055/s-0029-1212643] [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]
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