124 results on '"D. Pollmann"'
Search Results
102. Laboratory angular and momentum distributions of protons, kaons and pions from photoproduction on hydrogen at energies up to 5.8 GeV
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P. Seyboth, H. Böttcher, W. Bothin, H. Mück, U. Brall, K. Lanius, J. Seyerlein, H. Beisel, A. Pose, H. Meyer, B. Nellen, H. Spitzer, W. P. Swanson, Guenter Wolf, E. Schüttler, G. Harigel, W. Tejessy, G. Horlitz, H. Kolar, S. Wolff, D. Lüke, K. Böckmann, N. Schmitz, A. Meyer, P. Steffen, D. Pollmann, G. Reimann, J. Schreiber, W. Johnssen, P. Söding, H. Filthuth, J. Moebes, P. Freund, E. Lohrmann, R. Erbe, and M.W. Teucher
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Physics ,Nuclear and High Energy Physics ,Particle physics ,Photon ,Hydrogen ,Meson ,Nuclear Theory ,Bremsstrahlung ,chemistry.chemical_element ,Electron ,Nuclear physics ,Momentum ,Pion ,chemistry ,Physics::Accelerator Physics ,High Energy Physics::Experiment ,Photon beam ,Nuclear Experiment - Abstract
Information is presented on the laboratory angular and momentum distributions of protons, π+ and π− mesons and KS0 mesons produced by a photon beam with an approximate bremsstrahlung spectrum on hydrogen. The data may be useful for designing secondary pion and kaon beams, for planning experiments and for background estimates at electron accelerators.
- Published
- 1967
103. Photoproduction of ω, ɛ, η and Xo mesons at energies up to 5.8 GeV
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K. Lanius, A. Pose, G. Harigel, E. Lohrmann, Gy. Wolf, H. Mück, H. Meyer, N. Schmitz, W. P. Swanson, P. Steffen, W. Bothin, J. Seyerlein, D. Pollmann, B. Nellen, W. Rau, H. Spitzer, A. Meyer, J. Moebes, P. Freund, R. Erbe, H. Beisel, E. Schüttler, Klaus Gottstein, G. Reimann, H. Kolar, P. Seyboth, P. Söding, H. Filthuth, S. Wolff, G. Horlitz, D. Lüke, and W. Tejessy
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Physics ,Nuclear physics ,Meson - Published
- 1966
104. Photoproduction of two pions in the energy range of 4.1 – 6.2 GeV
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H. Strobl, E. Rabe, D. Pollmann, Peter Schacht, M. Grimm, P. Dittmann, I. Derado, W. Struczinski, J. Knobloch, R. Meinke, V. Eckardt, D. Notz, A. Ladage, H. Meyer, and P. Joos
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Nuclear physics ,Physics ,Nuclear and High Energy Physics ,Particle physics ,Pomeron ,Range (particle radiation) ,Pion ,Phase space ,High Energy Physics::Experiment ,DESY ,Helicity ,Liquid hydrogen ,Energy (signal processing) - Abstract
The reaction γp→; π+π−p in the energy range 4.1 to 6.2 GeV has been studied with a tagged photon beam incident on a liquid hydrogen target in the DESY one-meter streamer chamber. The reaction is analysed in terms of the longitudinal phase space (LPS) method. The one-pion-exchange model for Δ(1236) production and decay is examined. For the diffractive part of the LPS a dual model with pomeron exchange is investigated. In particular, the s-channel helicity conservation dual model of Dewey and Humpert describes the data well.
- Published
- 1973
105. Die muskuläre Beanspruchung beim alpinen Skilauf und beim Skilanglauf — Elektromyographische Ergebnisse zur Frage der Kontraktionsform
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K. Willimzcik, D. Pollmann, and W. Laurig
- Abstract
Entsprechend der weitverbreiteten Meinung in der Offentlichkeit weisen der alpine Skilauf und der Skilanglauf einen grundsatzlich unterschiedlichen Gesundheitswert auf. Als Grunde fur einen gegenuber dem Skilanglauf geringeren Gesundheitswert des alpinen Skilaufs werden vor allem genannt: 1. Die beim alpinen Skilauf zu beobachtenden hohen Herzschlagfrequenzen gehen nicht so sehr auf eine ausgepragte muskulare Beanspruchung, sondern auf (ungesunde) Stresfaktoren zuruck (vgl. Hollmann 1982, Mester/de Marees 1981). 2. Die beim alpinen Skilauf weit uberdurchschnittliche statische Beanspruchung der Muskulatur bedingt eine uberwiegend anaerobe Form der Energiebereitstellung (vgl. Hollmann 1980). In diesem Zusammenhang wird auf Untersuchungsergebnisse an Muskelgruppen bei statischer Kontraktionsform hingewiesen, nach denen es bei Kontraktionen, die starker als 50% (vgl. Fukunga/Philippi/Hollmann 1976) bzw. 70 bis 75% (vgl. Lind/McNicol 1967) der Maximalkraft sind, zum Verschlus der Muskelkapillaren und damit zur Unterbrechung der muskularen Durchblutung kommt. Infolgedessen kann der benotigte Energiebedarf nur noch anaerob gedeckt werden (vgl. de Marees 1981).
- Published
- 1987
106. The Nd:YAG Laser Sapphire Tip in Reproductive Surgery, a Preliminary Report
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G. Bastert, D. Wallwiener, A. Morawski, and D. Pollmann
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medicine.medical_specialty ,Reproductive surgery ,medicine.diagnostic_test ,business.industry ,Laser ,Endoscopy ,law.invention ,Surgery ,law ,Nd:YAG laser ,medicine ,Sapphire ,Operative laparoscopy ,business ,Laparoscopy ,Abdominal surgery - Abstract
The CO2 laser is used for several indications in operative laparoscopy. Many authors reported the advantages of CO2 laser preparation. The open abdominal surgery with the use of laser is easy and relatively safe. The endoscopic operations-talking about the laser endoscopy we mean laser laparoscopy and laser hysteroskopy — in many cases are technically difficult, especially if rigid instruments are used. The main problem is the danger of damaging the neighbouring organs. It is also important to note the high costs of CO2 laser equipment.
- Published
- 1988
107. MEASUREMENT OF MAGNETIC AND ELECTRIC-FIELD INHOMOGENEITIES IN A TIME PROJECTION CHAMBER USING LASER TRACKS
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E. Wicklund, I. Lehraus, T. Meyer, Sau Lan Wu, U. Stierlin, Robert Richter, A. Peisert, R. C. Jared, E. Milotti, W. Blum, M. Takashima, Salvator Roberto Amendolia, P.S. Marrocchesi, M. J. Price, Francesco Ragusa, A. Caldwell, Joseph Izen, R. Mathewson, M. Mermikides, R. Settles, F. Liello, J. K. Sedgbeer, Konrad Kleinknecht, A. Vayaki, J.P. Froberger, F. Fidecaro, W. Tejessi, M. Cherney, L. Rolandi, Jon-Paul R. Wells, J. Richstein, D. Schlatter, W. Witzeling, D. Pollmann, Weimin Wu, M. Benetta, J. May, Benetta, M, Froberger, Jp, Lehraus, I, May, J, Price, M, Schlatter, D, Tejessi, W, Mathewson, R, Witzeling, W, Vayaki, A, Wu, Wm, Kleinknecht, K, Pollmann, D, Richstein, J, Wells, J, Sedgbeer, J, Blum, W, Milotti, E, Peisert, A, Richter, R, Settles, R, Stierlin, U, Amendolia, Sr, Fidecaro, F, Marrocchesi, P, Liello, F, Ragusa, F, Rolandi, Luigi, Caldwell, A, Cherney, M, Izen, J, Jared, Rc, Mermikides, M, Meyer, Tc, Takashima, M, Wicklund, E, and Wu, Sl
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Physics ,Nuclear and High Energy Physics ,Wire chamber ,Time projection chamber ,business.industry ,Electromagnetic radiation ,Magnetic field ,Magnetization ,Nuclear magnetic resonance ,Optics ,Nuclear Energy and Engineering ,Electric field ,Measuring instrument ,Electric potential ,Electrical and Electronic Engineering ,business - Abstract
In a model time projection chamber with a drift length of 1.3 m we study the track distortions caused by inhomogeneous or misaligned fields. The measured coordinate displacements are used to calculate the integrals over the transverse field components; these are found to be in agreement with the independently measured magnetic field.
- Published
- 1985
108. Nd:YAG In-Touch- oder Kontakt-Technik, laser-physikalischer Background und Gewebeeffekte
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Diethelm Wallwiener, D. Pollmann, C. Krampe, and G. Bastert
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Gynecology ,medicine.medical_specialty ,business.industry ,medicine ,business - Abstract
Der Einsatz der Lasertechnik ist heutzutage fast in allen Sparten der Medizin moglich. Dabei gilt es jedoch zu beachten, das die auf dem Markt erhaltlichen Lasertypen sich in ihren Eigenschaften stark unterscheiden. Durch die Weiterentwicklung der In-Touch-Technik des Nd:YAG-Lasers, bei der der Laserstrahl mittels einer Saphirspitze direkt mit Kontakt auf das Gewebe appliziert wird, ist es heute moglich dieses Lasersystem sowohl mit einem Handapplikator als leichtes Skalpel als auch laparoskopisch uber eine flexible Glasquarzfaser zu verwenden. Die Ausmessung der durch diese Methode entstandenen Gewebeeffekte und deren Abhangigkeit von verschiedenen variablen Einflusgrosen standen im Vordergrund dieser Studie. Als variable Einflusfaktoren sind folgende Parameter zu verstehen: die Laserleistung (Watt), die Laserungsart (cw/pulsed), die gesamte Applikationszeit, die Geschwindigkeit, mit der die Saphirspitze uber das Gewebe gefuhrt wird, und die Saphirspitzen (Lange, Spitzendurchmesser, Spitzenendflache).
- Published
- 1989
109. Search for heavy neutrinos mixing with tau neutrinos
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P. Astier, D. Autiero, A. Baldisseri, M. Baldo-Ceolin, M. Banner, G. Bassompierre, K. Benslama, N. Besson, I. Bird, B. Blumenfeld, F. Bobisut, J. Bouchez, S. Boyd, A. Bueno, S. Bunyatov, L. Camilleri, A. Cardini, P.W. Cattaneo, V. Cavasinni, A. Cervera-Villanueva, G. Collazuol, G. Conforto, C. Conta, M. Contalbrigo, R. Cousins, D. Daniels, H. Degaudenzi, T. Del Prete, A. De Santo, T. Dignan, L. Di Lella, E. do Couto e Silva, I.J. Donnelly, J. Dumarchez, M. Ellis, T. Fazio, G.J. Feldman, R. Ferrari, D. Ferrère, V. Flaminio, M. Fraternali, J.-M. Gaillard, E. Gangler, A. Geiser, D. Geppert, D. Gibin, S.N. Gninenko, A. Godley, M.C. Gonzalez-Garcia, J.-J. Gomez-Cadenas, J. Gosset, C. Gößling, M. Gouanère, A. Grant, G. Graziani, A. Guglielmi, C. Hagner, J. Hernando, D. Hubbard, P. Hurst, N. Hyett, E. Iacopini, C. Joseph, F. Juget, M.M. Kirsanov, O. Klimov, J. Kokkonen, A.V. Kovzelev, N.V. Krasnikov, A. Krasnoperov, S. Lacaprara, C. Lachaud, B. Lakić, A. Lanza, L. La Rotonda, M. Laveder, A. Letessier-Selvon, J.-M. Levy, L. Linssen, A. Ljubičić, J. Long, A. Lupi, A. Marchionni, F. Martelli, X. Méchain, J.-P. Mendiburu, J.-P. Meyer, M. Mezzetto, S.R. Mishra, G.F. Moorhead, D. Naumov, P. Nédélec, Yu. Nefedov, C. Nguyen-Mau, D. Orestano, F. Pastore, L.S. Peak, E. Pennacchio, H. Pessard, R. Petti, A. Placci, G. Polesello, D. Pollmann, A. Polyarush, B. Popov, C. Poulsen, P. Rathouit, J. Rico, C. Roda, A. Rubbia, F. Salvatore, K. Schahmaneche, B. Schmidt, G. Segneri, M. Sevior, F.J.P. Soler, G. Sozzi, D. Steele, U. Stiegler, M. Stipčević, Th. Stolarczyk, M. Tareb-Reyes, G.N. Taylor, V. Tereshchenko, A.N. Toropin, A.-M. Touchard, S.N. Tovey, M.-T. Tran, E. Tsesmelis, J. Ulrichs, L. Vacavant, M. Valdata-Nappi, V. Valuev, F. Vannucci, K.E. Varvell, M. Veltri, V. Vercesi, G. Vidal-Sitjes, J.-M. Vieira, T. Vinogradova, F.V. Weber, T. Weisse, F.F. Wilson, L.J. Winton, B.D. Yabsley, H. Zaccone, K. Zuber, P. Zuccon, Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), NOMAD, and BOMBAR, Claudine
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Nuclear and High Energy Physics ,Particle physics ,[PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex] ,Proton ,FOS: Physical sciences ,01 natural sciences ,7. Clean energy ,High Energy Physics - Experiment ,High Energy Physics - Experiment (hep-ex) ,Big Bang nucleosynthesis ,Tau neutrino ,0103 physical sciences ,[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex] ,010306 general physics ,Mixing (physics) ,Physics ,Range (particle radiation) ,010308 nuclear & particles physics ,High Energy Physics::Phenomenology ,Física ,3. Good health ,neutrino mixing ,neutrino decay ,High Energy Physics::Experiment ,Neutrino ,Anomaly (physics) ,Event (particle physics) ,Particle Physics - Experiment - Abstract
We report on a search for heavy neutrinos ($\nus$) produced in the decay $D_s\to \tau \nus$ at the SPS proton target followed by the decay $\nudecay$ in the NOMAD detector. Both decays are expected to occur if $\nus$ is a component of $\nu_{\tau}$.\ From the analysis of the data collected during the 1996-1998 runs with $4.1\times10^{19}$ protons on target, a single candidate event consistent with background expectations was found. This allows to derive an upper limit on the mixing strength between the heavy neutrino and the tau neutrino in the $\nus$ mass range from 10 to 190 $\rm MeV$. Windows between the SN1987a and Big Bang Nucleosynthesis lower limits and our result are still open for future experimental searches. The results obtained are used to constrain an interpretation of the time anomaly observed in the KARMEN1 detector.\, Comment: 20 pages, 7 figures, a few comments added
110. Nd:YAG In-Touch-oder Kontakt-Technik, laser-physikalischer Background und Gewebeeffekte
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D. Pollmann, D. Wallwiener, C. Krampe, and G. Bastert
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Obstetrics and Gynecology ,General Medicine - Published
- 1989
111. Elite Athletes' In-event Competitive Anxiety Responses and Psychological Skills Usage under Differing Conditions.
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Hagan JE Jr, Pollmann D, and Schack T
- Abstract
Background and Purpose: Even though the assessment of competitive anxiety responses (intensity, interpretation, and frequency) using the time-to-event paradigm has gained much attention, literature on the account of these same experiences in-event and their corresponding psychological skills adopted under differing conditions is limited. This is a follow up investigation to establish the extent to which associated anxiety responses are stable or dynamic and whether this pattern could be related to reported psychological skills under low or high stressful conditions across gender. Methods: Twenty-three high level ( N = 13 males and 10 females) Ghanaian Table Tennis players provided data through completion of modified versions of Competitive State Anxiety Inventory-2, incorporated with directional and frequency of intrusion scales and the Test of Performance Strategies inventory during breaks within competitive fixtures. Results: MANCOVAs (gender × stress condition) with follow-up analyses revealed no significant interactions and no main effect for gender but significant main effects were realized for all anxiety dimensions and psychological skills for only the second factor. Specifically, the intensity and frequency of cognitive and somatic state anxiety symptoms increased and were interpreted as debilitative under the high stress condition, although self-confidence and other array of psychological skills were highly displayed under the same stressful condition. Conclusion: Findings highlight the dynamic characteristics of in-event associated anxiety responses and ineffectiveness of deployed psychological skills regardless of gender. These perhaps show the exceptionality of affective experiences in an African setting, suggesting a culturally diversified approach to psychological skills application, if desirable effects are to be attained.
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- 2017
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112. Exploring temporal patterning of psychological skills usage during the week leading up to competition: Lessons for developing intervention programmes.
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Hagan JE Jnr, Pollmann D, and Schack T
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- Adolescent, Adult, Athletic Performance psychology, Competitive Behavior, Female, Follow-Up Studies, Goals, Humans, Imagery, Psychotherapy, Male, Multivariate Analysis, Professional Competence, Relaxation Therapy, Sex Factors, Time Factors, Young Adult, Athletes psychology, Sports psychology
- Abstract
Background and Purpose: Although sport psychology literature focuses on psychological skills use to promote proficiency, it is still puzzling that current research has focused on psychological skills use only during competition. There remains a scarcity of empirical evidence to support the timing, and content of psychological skill application during the time preceding competition. This study examined the extent to which psychological skills usage are dynamic or stable over a 7-day pre-competitive period and whether any natural learning experiences might have accounted for the acquisition of these skills across gender and skill level., Methods and Results: Ninety elite and sub-elite table tennis players completed the Test of Performance Strategies (TOPS) at three different periods (7 days, 2 days, 1 hour) before competition. A MANOVA repeated measures with follow-up analyses revealed significant multivariate main effects for only skill level and time-to-competition with no interactions. Specifically, elite (international) athletes reported more usage than sub-elite (national) counterparts for self-talk, imagery and relaxation respectively. Time-to-competition effects showed imagery use decreased steadily across the three time points while reported usage of relaxation were almost at the same level on two time points (7 days and 1 hour) but decreased 2 days before competition., Conclusions: Findings suggest an implementation of formalized and periodized psychological skills training programs over continuous training cycles. This may foster a positive long-term athletes' psychological state prior to the onset of competition.
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- 2017
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113. Interaction between Gender and Skill on Competitive State Anxiety Using the Time-to-Event Paradigm: What Roles Do Intensity, Direction, and Frequency Dimensions Play?
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Hagan JE Jr, Pollmann D, and Schack T
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Background and purpose: The functional understanding and examination of competitive anxiety responses as temporal events that unfold as time-to-competition moves closer has emerged as a topical research area within the domains of sport psychology. However, little is known from an inclusive and interaction oriented perspective. Using the multidimensional anxiety theory as a framework, the present study examined the temporal patterning of competitive anxiety, focusing on the dimensions of intensity, direction, and frequency of intrusions in athletes across gender and skill level. Methods: Elite and semi-elite table tennis athletes from the Ghanaian league ( N = 90) completed a modified version of Competitive State Anxiety Inventory-2 (CSAI-2) with the inclusion of the directional and frequency of intrusion scales at three temporal phases (7 days, 2 days, and 1 h) prior to a competitive fixture. Results: Multivariate Analyses of Variance repeated measures with follow-up analyses revealed significant interactions for between-subjects factors on all anxiety dimensions (intensity, direction, and frequency). Notably, elite (international) female athletes were less cognitively anxious, showed more facilitative interpretation toward somatic anxiety symptoms and experienced less frequency of somatic anxiety symptoms than their male counterparts. However, both elite groups displayed appreciable level of self-confidence. For time-to-event effects, both cognitive and somatic anxiety intensity fluctuated whereas self-confidence showed a steady rise as competition neared. Somatic anxiety debilitative interpretation slightly improved 1 h before competition whereas cognitive anxiety frequencies also increased progressively during the entire preparatory phase. Conclusion: Findings suggest a more dynamic image of elite athletes' pre-competitive anxiety responses than suggested by former studies, potentially influenced by cultural differences. The use of psychological skills interventions that require effective structure, content, and timing in a composite manner is suggested.
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- 2017
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114. A case report of QT prolongation with glycopyrronium bromide in a patient with chronic tamoxifen use.
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Chiu MH, Al-Majed NS, Stubbins R, Pollmann D, and Sandhu RK
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- Administration, Inhalation, Aged, Electrocardiography, Female, Glycopyrrolate administration & dosage, Humans, Long QT Syndrome chemically induced, Muscarinic Antagonists administration & dosage, Muscarinic Antagonists adverse effects, Pulmonary Disease, Chronic Obstructive drug therapy, Selective Estrogen Receptor Modulators adverse effects, Syncope chemically induced, Glycopyrrolate adverse effects, Long QT Syndrome diagnosis, Syncope diagnosis, Tamoxifen adverse effects
- Abstract
Background: Glycopyrronium bromide has recently been approved as a once daily maintenance inhalation therapy for moderate to severe chronic obstructive pulmonary disease (COPD). Efficacy and safety trial data have found rare cases of significant QT prolongation. To our knowledge, we describe the first case report of QT prolongation >600 ms with initiation of glycopyrronium bromide in a real world setting., Case Presentation: A 78-year-old female with moderate COPD recently started on glycopyrronium bromide, presented to Emergency Department (ED) with syncope. Her past medical history was significant for a left total mastectomy and she had been on Tamoxifen for 9 months. One day prior to her presentation, she had visited a naturopathic clinic for a vitamin infusion resulting in emesis. The following day she continued to feel dizzy and had a witnessed syncopal episode without any reported cardiac or neurological symptoms preceding the event or after regaining consciousness. In the emergency department, she reported dizziness and was found to be hypotensive. Her symptoms completely resolved with intravenous fluids. Lab work was normal however her electrocardiogram (ECG) demonstrated a QTc interval of 603 and 631 ms (Friderica and Bazett's respectively) with a normal QT interval on her baseline ECG prior to initiating Tamoxifen. She was admitted to the Cardiology service for further work-up of QT prolongation. Her syncope was felt to be due to orthostatic hypotension and the QT prolongation secondary to medications, which were both discontinued during her admission. After 2 days, her QT interval normalized consistent with the half-life of Glycopyrronium bromide (13-57 h) compared to Tamoxifen (8-14 days)., Conclusion: Glycopyrronium bromide is guideline recommended as first line therapy for prevention of exacerbation in moderate to severe COPD however safety data had been limited to select populations. This case report highlights the need for future studies to identify high-risk populations at potential risk of life-threatening arrhythmias who may benefit from periodic ECG surveillance.
- Published
- 2016
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115. The amino-terminal propeptide (PINP) of type I collagen is a clinically valid indicator of bone turnover and extent of metastatic spread in osseous metastatic breast cancer.
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Pollmann D, Siepmann S, Geppert R, Wernecke KD, Possinger K, and Lüftner D
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- Adult, Aged, Bone Neoplasms blood, Bone Remodeling, Breast Neoplasms blood, Collagen Type I blood, Female, Humans, Immunoassay, Middle Aged, Osteocalcin blood, Peptides blood, Sensitivity and Specificity, Biomarkers, Tumor blood, Bone Neoplasms secondary, Breast Neoplasms pathology, Peptide Fragments blood, Procollagen blood
- Abstract
Background: The efficacy control for the treatment of bone metastases in breast cancer is difficult and usually initiated later and with longer time between treatment cycles than the restaging of visceral or soft tissue metastases. The amino-terminal propeptide (PINP) of type I collagen as a biochemical indicator of bone turnover might facilitate early and valid disease surveillance. The utility of total PINP was investigated in metastatic breast cancer patients, with or without bone metastases (for monitoring of therapy). The results were compared to the established markers, osteocalcin and beta-carboxyterminal telopeptide (CTX) or crosslaps concentration., Patients and Methods: Baseline serum samples of 51 patients with metastastic breast cancer under chemotherapy were investigated. In total, 38 patients had been diagnosed with bone metastases while 13 had no evidence of metastastic spread to the bone. All the patients with bone spread received bisphosphonates in addition to systemic chemotherapy and/or antibody therapy or hormonal treatment. Osteocalcin, CTX and PINP levels were measured on an Elecsys 2010 analyzer (electrochemiluminescence immunoassay--ECLIA). The normal cut-off values were: osteocalcin < 41.3 pg/ml, CTX < 1008 pg/ml and PINP < 95 ng/ml. Based on overall treatment outcome, the patients were grouped as responders (CR/PR), with stable disease (SD) or displaying primary progression (PD)., Results: The baseline levels of PINP were significantly higher in patients with bone metastases (median: 92.8 ng/ml) than in those without (median: 63.2 ng/ml, p = 0.044). Patients with more than seven bone metastases had significantly higher PINP levels (median: 149.7 ng/ml) than those with fewer than seven (median: 67.6 ng/ml, p = 0.04). Significant differences were also found for osteocalcin and CTX, at p = 0.02 and p = 0.04, respectively, although the median levels remained under the normal cut-off levels. In terms of response assessment of bone spread, the PINP concentrations decreased in responders from 194.3 ng/ml to 100.4 ng/ml (p = 0.23). In patients with SD, PINP remained at the same level of approximately 70 ng/ml (p = 0.16), but increased in patients with PD from 83.4 ng/ml to 176.5 ng/ml (p = 0.14). These trends rather than statistical difference were probably due to the limited patient cohort. No differences were found for the serum concentrations of PINP, CTX and osteocalcin between post- and pre-menopausal women., Conclusion: The PINP levels of the osseous metastatic breast cancer patients were elevated at baseline in comparison to those without bone involvement; the levels correlated to the number of bone metastases but were independent of the menopausal status. Thus, the levels of PINP under therapy might correlate with the response to therapy. Osteocalcin and CTX did not show similar sensitivity for the surveillance of bone metastases.
- Published
- 2007
116. Heparanase: a new metastasis-associated antigen recognized in breast cancer patients by spontaneously induced memory T lymphocytes.
- Author
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Sommerfeldt N, Beckhove P, Ge Y, Schütz F, Choi C, Bucur M, Domschke C, Sohn C, Schneeweis A, Rom J, Pollmann D, Leucht D, Vlodavsky I, and Schirrmacher V
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- Breast Neoplasms enzymology, Epitopes, T-Lymphocyte immunology, Female, HLA-A2 Antigen immunology, HLA-A2 Antigen metabolism, Humans, Immunologic Memory immunology, Interferon-gamma biosynthesis, Interferon-gamma immunology, Oligopeptides immunology, Antigens, Neoplasm immunology, Breast Neoplasms immunology, Glucuronidase immunology, T-Lymphocytes, Cytotoxic immunology
- Abstract
Increased expression and secretion of heparanase (Hpa) by tumor cells promotes tumor invasion through extracellular matrices, tissue destruction, angiogenesis, and metastasis. Here, we show the existence in breast cancer patients of Hpa-specific T lymphocytes by fluorescence-activated cell sorting flow cytometry using Hpa peptide-MHC class I tetramers. We furthermore show memory T-cell responses in a high proportion of breast cancer patients to Hpa-derived HLA-A2-restricted peptides, leading to production of IFN-gamma and to generation of antitumor CTLs lysing breast cancer cells. Such CTLs recognized endogenously processed respective Hpa peptides on Hpa-transfected and Hpa-expressing untransfected breast carcinoma cells. According to these results and to the fact that such cells were not found in healthy people, Hpa seems to be an attractive new tumor-associated antigen and its HLA-A2-restricted peptides ought to be good candidates for peptide vaccination to reactivate memory immune responses to invasive and metastatic cancer cells.
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- 2006
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117. Prescription pattern of aromatase inhibitors in the adjuvant setting in Germany--final results of a survey among german breast cancer specialists.
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Lüftner D, Henschke P, Pollmann D, Schildhauer S, and Possinger K
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- Antineoplastic Agents therapeutic use, Chemotherapy, Adjuvant statistics & numerical data, Drug Utilization statistics & numerical data, Female, Germany epidemiology, Humans, Medical Oncology statistics & numerical data, Aromatase Inhibitors therapeutic use, Breast Neoplasms drug therapy, Breast Neoplasms epidemiology, Drug Prescriptions statistics & numerical data, Practice Patterns, Physicians' statistics & numerical data, Practice Patterns, Physicians' trends, Surveys and Questionnaires
- Abstract
Introduction: The prescription practice of adjuvant therapy with aromatase inhibitors (AI) in Germany is not known, also considering that approval is still limited or awaited. We conducted a survey among breast specialists of the German Society of Senology., Method: A standardized questionnaire and the latest abstracts of the 3 trials were sent out to 1,223 members, responses were anonymized. All questions were to be answered with respect to the patients' national health insurance (NHS) or private health insurance (PHS) status., Results: Questionnaire were predominantly completed by gynecologists (82.4%). In all, >16,000 breast cancer patients had been treated in 2003. A total of 69.4% of physicians initiated adjuvant AI in up to 25% of NHS patients, 5.6% treated >50% of patients. However, 10.3% of physicians treated >50% of their PHS patients with an AI. Under the hypothesis of an unrestricted label for AI, 44.5% of physicians would treat >50% patients. The switch to an AI after 2-3 years of tamoxifen was chosen in 22% for NHS patients and in 36% of PHS patients. Continuing an AI after 5 years of tamoxifen was favored. in 26% of NHS and 35% of PHS patients., Conclusion: Tamoxifen as the previous gold standard is being replaced by AI; a dramatic change in treatment pattern is expected with less restricted approval.
- Published
- 2005
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118. Perspectives of immunotherapy in metastatic breast cancer.
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Lüftner D, Pollmann D, Schildhauer S, Sehouli J, and Possinger K
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- Antibodies, Monoclonal, Humanized, Breast Neoplasms immunology, Breast Neoplasms pathology, Combined Modality Therapy, Humans, Neoplasm Metastasis, Trastuzumab, Antibodies, Monoclonal therapeutic use, Antineoplastic Agents therapeutic use, Breast Neoplasms therapy, Immunotherapy methods
- Abstract
Further improvements in the treatment of breast cancer can be expected with a better understanding of its pathophysiology and through biologically-oriented therapeutic interventions, as well as better identification of patient populations likely to benefit from specific therapies. Trastuzumab (Herceptin) is the first biological modifier, showing significant activity in patients with advanced breast cancer who exhibit HER-2/neu gene amplification and/or protein overexpression. Trastuzumab is approved for use in combination with paclitaxel or docetaxel as first-line chemotherapy. Combinations of a taxane, a platinum salt and trastuzumab are feasible and active and have proven an increased survival advantage. This is in addition to the benefit that has been shown for Herceptin in combination with monochemotherapy alone. Several groups have demonstated the ratio of serum HER-2/neu levels prior to initiation of Herceptin treatment to levels at the time of re-staging examination to be significantly higher in patients with a significant benefit from therapy as compared to patients with progressive disease. As a result of the survival improvements in the metastatic setting, Herceptin was quickly entered into development trials for adjuvant treatment. The significant cardiac toxicity that has been observed with trastuzumab/anthracycline combinations has led to two main strategies for integrating trastuzumab in the adjuvant setting: either the addition of trastuzumab to mostly anthracycline-based programs in a sequential approach, or the biologically-oriented strategy based on synergism between trastuzumab and chemotherapy agents including platinum compounds. Last but not least, the most important prerequisite for the optimal efficacy of Herceptin-based therapy remains a very strict selection of those patients with tumours that have HER-2/neu over-expression.
- Published
- 2005
119. Operative Hysteroscopy: Results, Security Aspects, In Vitro Simulation Training (Hysterotrainer)
- Author
-
Wallwiener D, Rimbach S, Aydeniz B, Pollmann D, and Bastert G
- Abstract
To date, hysteroscopy has become an integral part of the overall gynecologic surgical concept. In 156 women results of intrauterine hysteroscopic surgery are demonstrated to be at least comparable to those of conventional procedures. Moreover, a meta analysis of the literature (n = 10,000) as well as our own experience (n = 200) supports the view that complication rates may be minimized by a well-structured training program which includes the recently developed in vitro simulation trainer, the HysteroTrainer.
- Published
- 1994
- Full Text
- View/download PDF
120. [The bipolar needle electrode in surgical laparoscopy. Initial technical experimental and clinical results].
- Author
-
Wallwiener D, Rimbach S, Menzer M, Pollmann D, Kaufmann M, Bastert G, and Müller W
- Subjects
- Electrodes, Female, Humans, Leiomyoma surgery, Needles, Salpingostomy instrumentation, Uterine Neoplasms surgery, Electrosurgery instrumentation, Genital Diseases, Female surgery, Laparoscopes
- Abstract
To date the tremendous spread of operative laparoscopic procedures associated with monopolar high-frequency techniques has lead to an increase in complications caused by monopolar leakage currents. Experimental-surgical measurements on minipigs have shown no significant leakage currents in clinical relevant power range during laparoscopic application of a bipolar needle electrode as compared to monopolar electrodes. Practicability and safety of the bipolar electrode was proven in 100 operative laparoscopies for organ preserving or reconstructive surgery. In summary, with the new laparoscopic bipolar needle electrode a secure surgical instrument is available, with which finest tissue handling and minimal thermal damage feasible.
- Published
- 1994
121. [Thermal preparation techniques in gynecologic endoscopy--technical, experimental and clinical results (n=2000)].
- Author
-
Wallwiener D, Rimbach S, Pollmann D, von Fournier D, and Bastert G
- Subjects
- Animals, Electrocoagulation instrumentation, Equipment Design, Female, Hemostasis, Surgical instrumentation, Humans, Genital Diseases, Female surgery, Hysteroscopes, Laparoscopes, Laser Therapy instrumentation
- Abstract
A comparative study on thermal, mainly laser and high frequency electrosurgical techniques, was conducted. Indications, handling and morphometric results were correlated. Morphometrical findings suggest that minimal thermal tissue damage is associated by a decrease in the hemostatic effect. Additional bipolar coagulation is necessary when using the carbon dioxide laser or high frequency electrodes. As thermal tissue lesion is concerned, the two techniques differ only slightly, by fractions of millimeters. Concerning clinical handling and practicability at our department, as well as in the centers participating at the European Consensus Study on Lasers in Gynaecology, high frequency electrosurgery has proven the method of choice for endoscopic ablative procedures. The carbon dioxide laser (at laparoscopy) and the Nd:YAG contact laser (at hysteroscopy) are preferentially employed for reconstructive surgery (e.g. the carbon dioxide laser for treatment of distal tubal pathology or endometriosis, the Nd:YAG contact laser for hysteroscopic synechiolysis).
- Published
- 1994
122. [Palliative laser therapy in gynecologic oncology].
- Author
-
Wallwiener D, Rimbach S, Kaufmann M, Schmid H, Pollmann D, Sohn C, von Fournier D, and Bastert G
- Subjects
- Adult, Aged, Aged, 80 and over, Female, Humans, Middle Aged, Reoperation, Breast Neoplasms surgery, Genital Neoplasms, Female surgery, Neoplasm Recurrence, Local surgery, Palliative Care
- Abstract
Local recurrences of carcinomas of the breast and genitals are a severe psychic and physical strain on the patients. Continuous confrontation with an often visible and generally painful tumour manifestation is an indication for palliative treatment, if other oncological therapies can no longer be employed. In these cases, the possibility of laser use represents a new therapeutic approach. In a pilot study at the University of Heidelberg, Department of Obstetrics and Gynaecology, a palliative laser therapy was performed on 45 patients with locally recurrent carcinomas of the breast (n = 29) and genitals (n = 16). Carbon dioxide and Nd:YAG lasers were utilized for tumour resection, vaporisation and coagulation. This new concept, the combined application of both wavelengths has been proved to be most efficient.
- Published
- 1992
- Full Text
- View/download PDF
123. Laser palliation of locoregional recurrences of breast cancer.
- Author
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Wallwiener D, Schmit H, Rimbach S, Pollmann D, Stolz W, Bubnoff A, Kaufmann M, Fournier DV, and Bastert G
- Subjects
- Aged, Female, Humans, Skin Neoplasms secondary, Skin Neoplasms surgery, Breast Neoplasms surgery, Carcinoma, Intraductal, Noninfiltrating surgery, Laser Therapy, Neoplasm Recurrence, Local surgery, Palliative Care
- Abstract
The paper reports on the use of carbon dioxide and Nd:YAG lasers for palliation of locoregional breast cancer recurrences. On the basis of three case reports, pros and cons of laser assisted treatment of loco-regionally recurrent breast cancer are discussed. A carbon dioxide--Nd:YAG combination therapy is proposed as the method best suited. The preliminary results indicate that laser palliation of local relapse and soft tissue metastases might enlarge the therapeutic spectrum.
- Published
- 1991
124. Laser surgery in gynecological oncology. Part I: Experimental results. Relapse and metastatic behaviour of the Lewis lung carcinoma subsequent to CO2 laser surgery of the primary tumor. An experimental model to compare the effectiveness of various CO2 laser application techniques.
- Author
-
Wallwiener D, Rimbach S, Pollmann D, Klinger U, Stolz W, Blook M, Bastert G, and von Fournier D
- Subjects
- Animals, Carbon Dioxide, Female, Genital Neoplasms, Female surgery, Lung Neoplasms pathology, Lung Neoplasms secondary, Mice, Mice, Inbred Strains, Neoplasm Recurrence, Local, Wound Healing, Laser Therapy, Lung Neoplasms surgery
- Abstract
The influence of various CO2 laser surgical techniques on tumor behaviour was examined in an experimental model on C56BL/6 mice (n = 106) with Lewis Lung carcinomas and compared with that of scalpel excised tumors. Comparisons were made between the healing procedure, the local recurrence rate, metastatic behaviour and the survival rate (n = 86) of mice after laser surgical excision of tumors, using the superpulsed and continuous wave techniques, with and without additional vaporisation of the wound, as well as after general vaporisation only.
- Published
- 1990
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