79 results on '"S, Knauß"'
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2. Facilitators and barriers to TB care during the COVID-19 pandemic
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M. A. Franke, L. M. Truß, H. Wierenga, K. Nordmann, A. Frühauf, R. Ranaivoson, Z. Rampanjato, F. Ranjaharinony, S. Knauss, N. Muller, and J. V. Emmrich
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Health Policy ,Public Health, Environmental and Occupational Health ,Original Articles - Abstract
Knowledge about factors influencing access and adherence to TB care, and on the impact of the COVID-19 pandemic on TB care in resource-restricted settings is scarce. We conducted this study in Atsimo-Andrefana, a rural region in southern Madagascar where TB prevalence, poverty and food insecurity rates are high. We aimed to determine facilitators and barriers to access to and provision of TB care in rural Madagascar during the COVID-19 pandemic.We conducted qualitative focus group discussions (FGDs) and in-depth interviews (IDIs) with patients with TB, community health workers, facility-based health workers, public health officials and non-governmental organisation staff. We analysed interviews using thematic analysis.We conducted 11 FGDs and 23 IDIs. We identified three main barriers to access and adherence to TB care: 1) stigma, 2) indirect treatment costs, and 3) food insecurity. The facilitator perceived as most influential was high health worker motivation. The effects of the COVID-19 pandemic on TB care varied between stake-holders; some health workers described delays in TB diagnosis and increased workload.To improve access and adherence to TB care, both indirect treatment costs and stigma need to be reduced; undernourished patients with TB should receive food support.Les connaissances sur les facteurs influençant l’accès et l’adhésion aux soins antituberculeux, ainsi que sur l’impact de la pandémie de COVID-19 sur les soins antituberculeux dans les milieux à ressources limitées sont rares. Nous avons mené cette étude à Atsimo-Andrefana, une région rurale du sud de Madagascar où la prévalence de la TB et les taux de pauvreté et d’insécurité alimentaire sont élevés. Nous avons cherché à déterminer les facilitateurs et les obstacles à l’accès et à la fourniture de soins antituberculeux dans les zones rurales de Madagascar pendant la pandémie de COVID-19.Nous avons mené des discussions qualitatives en groupe (FGD) et des entretiens approfondis (IDI) avec des patients atteints de tuberculose, des agents de santé communautaires, des agents de santé en établissement, des responsables de la santé publique et des membres d’organisations non gouvernementales. Nous avons analysé les entretiens en utilisant l’analyse thématique.Nous avons mené 11 FGD et 23 IDI. Nous avons identifié trois principaux obstacles à l’accès et à l’observance des soins antituberculeux : 1) la stigmatisation, 2) les coûts indirects du traitement et 3) l’insécurité alimentaire. Le facilitateur perçu comme le plus influent était la forte motivation des agents de santé. Les effets de la pandémie de COVID-19 sur les soins antituberculeux varient selon les parties prenantes ; certains agents de santé ont décrit des retards dans le diagnostic de la TB et une augmentation de la charge de travail.Pour améliorer l’accès et l’adhésion aux soins antituberculeux, il faut réduire à la fois les coûts indirects du traitement et la stigmatisation ; les patients tuberculeux sousalimentés devraient recevoir une aide alimentaire.
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- 2022
3. Caucasus Region
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Florian S. Knauss
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- 2021
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4. 71/m mit Verwirrtheit, Kopfschmerzen und Fieber
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S. Knauss
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Gynecology ,medicine.medical_specialty ,business.industry ,medicine ,business - Published
- 2020
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5. Symbole großköniglicher Herrschaft. Neue Untersuchungen zu Typologie und Technologie achaimenidischer Basen und Kapitelle im Kaukasus
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Matthias Gütte and Florian S. Knauß
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- 2021
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6. 12. Transkaukasien nach dem Fall Urartus
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Florian S. Knauß
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- 2021
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7. Zur eisenzeitlichen Wohnarchitektur Ostgeorgiens
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Florian S. Knauss
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History ,Archaeological research ,Rubble ,engineering ,Architecture ,engineering.material ,Archaeology - Abstract
Recent archaeological research provided new evidence of strong Achaemenid influence upon the material culture of this region, especially in the field of (monumental) architecture. The investigation of residential buildings of the ordinary people in Eastern Georgia (Kakheti and Kartli) comes up with a different picture: Iron-Age sites (8th-3rd centuries BC) provided merely modest private houses with pise (Kakheti) or rubble walls (Kartli). Often they consisted of just a single multi-functional room. While the manner of building was quite simple, a modest decoration of the living rooms could be observed in quite a few cases, however. So far, we may conclude that the local architecture not only lacks the monumental size of the well known »Achaemenid« buildings in Eastern Georgia but also a number of constructional details, even in Post-Achaemenid times. The impact of Persian rule mainly concerned the local aristocracies.
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- 2020
8. Deutschlandweite Evaluation der ärztlichen Weiterbildung in der klinischen Neurologie
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H. Eisenberg, Christiana Franke, D. Sturm, T. Schreckenbach, Michaela Zupanic, F. Sand, S. Knauß, J. Behncke, A. Hillienhof, and A.‑S. Biesalski
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Gynecology ,03 medical and health sciences ,Psychiatry and Mental health ,medicine.medical_specialty ,0302 clinical medicine ,Neurology ,Political science ,medicine ,Economic pressure ,030212 general & internal medicine ,Neurology (clinical) ,General Medicine ,030217 neurology & neurosurgery - Abstract
Es existieren keine aktuellen Daten, die die Weiterbildungssituation an deutschen neurologischen Kliniken darstellen. Um die hohe Qualitat der neurologischen Patientenversorgung langfristig sichern zu konnen, ist es von essenzieller Wichtigkeit, die Arbeits- und Weiterbildungsbedingungen an neurologischen Kliniken zu evaluieren. Die deutschlandweite Studie hat zum Ziel, Chancen sowie Hemmnisse der neurologischen Weiterbildung zu erkennen und Anregungen zu Veranderungen der Weiterbildungskurrikula zu geben. Die onlinebasierte Befragung erfolgte von Februar bis Mai 2017. Es nahmen 953 in Weiterbildung zum Facharzt fur Neurologie befindliche Arzte teil. Uber die Halfte der Befragten gab an, mit der Weiterbildung an ihrer Klinik zufrieden zu sein. Als eines der Kernprobleme, die die klinische Weiterbildung erschweren, wird die Arbeitsverdichtung angesehen. Daneben fuhren organisatorische Hindernisse innerhalb der Klinik, wie eine schlechte Struktur der Weiterbildung oder unklare Ansprechpartner zu Unzufriedenheit der Befragten. Die Grose oder Art der Klinik sowie das vorherrschende Dienstsystem haben nur einen geringen Einfluss auf die Qualitat der Weiterbildung, obgleich sich Unterschiede insbesondere bei der Selbsteinschatzung der Teilnehmer im Zusammenhang mit der Arbeitsstelle (Universitat/Lehrkrankenhaus vs. nichtuniversitare Klinik) zeigten. Die neurologische Weiterbildung kann bereits durch einfache Masnahmen, wie der Einfuhrung eines verbindlichen Rotationssystems, eines innerklinischen Mentorings und einer kontinuierlichen „Feedback-Kultur“, verbessert werden. Daneben ist es zusatzlich notwendig, das arztliche Personal konsequent von administrativen Aufgaben zu entlasten, um Zeit fur die neurologische Weiterbildung und das Erlernen von Kompetenzen zu schaffen.
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- 2018
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9. Entzündliche Erkrankungen
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C. Warnke, J. Havla, M. Kitzrow, A.-S. Biesalski, and S. Knauss
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- 2019
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10. [Nationwide survey of postgraduate medical training in clinical neurology]
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A-S, Biesalski, C, Franke, D, Sturm, J, Behncke, T, Schreckenbach, S, Knauß, H, Eisenberg, A, Hillienhof, F, Sand, and M, Zupanic
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Neurology ,Germany ,Surveys and Questionnaires ,Humans ,Curriculum ,Neurologists - Abstract
Currently, no data are available, which reflect the situation of medical doctors specializing in neurology in German hospitals. In order to secure the high standard of neurological patient care it is essential to evaluate the working conditions and the specialty training in neurology.This nationwide survey was conducted throughout Germany with the aim to address problems and to give suggestions for improvements in neurological training curricula.The survey was online from February to May 2017 and 953 neurologists undergoing further training participated.More than half of the young neurologists were satisfied with their medical training. One of the main problems that complicates clinical training is the workload. In addition, organizational obstacles within the clinic, such as poor structure of education or a lack of mentors, lead to dissatisfaction among participants. The size or type of the department, as well as the prevailing service system, exert only a minor influence on the quality of specialist training, although there were differences especially in the self-assessment of the participants in connection with the type of department (university hospital versus public or private hospital).Specialist training in neurology can be improved by simple arrangements, e. g., the introduction of a binding rotation scheme, internal mentoring and structured feedback. In addition, it will be necessary to relieve medical staff of administrative duties in order to create time for training and the learning of competencies.
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- 2018
11. Federwelt 117, 02-2016 : Zeitschrift für Autorinnen und Autoren
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Jens Brehl, Nina George, Sandra Ballarin, Alexandra Link, Gabi Strobel, Meike Haberstock, Annette Langen, Stefanie Leo, Diana Hillebrand, Hans Peter Roentgen, Angelika Jodl, Evelin S. Knauß, Michaela Seul, Martina Troyer, Jan Decker, Michael Rossié, Michaela Didyk, Martina Weber, Ralf Fieseler, Stephan Waldscheidt, Sandra Uschtrin, Jens Brehl, Nina George, Sandra Ballarin, Alexandra Link, Gabi Strobel, Meike Haberstock, Annette Langen, Stefanie Leo, Diana Hillebrand, Hans Peter Roentgen, Angelika Jodl, Evelin S. Knauß, Michaela Seul, Martina Troyer, Jan Decker, Michael Rossié, Michaela Didyk, Martina Weber, Ralf Fieseler, Stephan Waldscheidt, and Sandra Uschtrin
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Die FEDERWELT ist die Fachzeitschrift für Autorinnen und Autoren. Sie wendet sich an Schreibanfänger und Fortgeschrittene, Selfpublisher und VerlagsautorInnen und bietet Orientierung im Literaturbetrieb. Den Hauptteil machen praxisorientierte Fachartikel und Interviews zum Thema Schreiben und Veröffentlichen aus, darunter die beliebte'Textküche'(siehe unten). Außerdem gibt es einen Terminkalender mit Informationen über Literaturwettbewerbe und -stipendien, Rezensionen von Schreibratgebern sowie einen Kleinanzeigenteil. Zielgruppe: Autorinnen und Autoren sowie literarisch Interessierte mit Freude am Schreiben. 2016 erscheint die Federwelt bereits im 19. Jahrgang; Auflage dieser Ausgabe: 5.000 Exemplare. Erscheinungstermine: Die FEDERWELT erscheint alle zwei Monate, jeweils zum 1. des betreffenden Monats (Februar, April, Juni, August, Oktober, Dezember) Chefredaktion: Anke Gasch Herausgeberin: Sandra Uschtrin, Uschtrin Verlag Preise: Jahresabonnement Print: 42 Euro (Inland; inkl. Versand), 54 Euro (Ausland; inkl. Versand). Einzelheft, Printfassung: 7,50 Euro zzgl. Versand; PDF/E-Book: 4,99 Euro Weitere Informationen sowie Auszüge aus den Artikeln der jeweils aktuellen Ausgabe finden Sie auf der Website der'Autorenwelt'unter'Magazine'. Zur'Textküche': Schreibprofis, in jeder Folge andere, kommentieren Texte, die noch nicht ganz rund sind. Lektoratsarbeit also auf dem Präsentierteller – ein besonderes Schmankerl für alle, die Buchstaben lieben. Themen der Textküche waren bisher: _ Folge 26: Der Kinderroman – Folge 25: Ein Sachbuchexposé schreiben – Folge 24: Der Subtext – Oder: Zwischen den Zeilen schreiben – Folge 23: Der (humorvolle) Liebesroman - Folge 22: Gefühlsecht schreiben - Folge 21: Literarisch anspruchsvolle Gedichte schreiben - Folge 20: der historische Roman - Folge 19: Schreiben fürs Theater - Folge 18: Kurzkrimis und Kurzthriller - Folge 17: Szenen geschickt verbinden
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- 2016
12. PD1 and PDL2 axis confers T cell exhaustion in anti-SRP+ and anti-HMGCR+ myopathies
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Corinna Preuße, Olivier Benveniste, S. Knauß, N. Fischer, Werner Stenzel, V. Matyash, Hans-Hilmar Goebel, and Y. Allenbach
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medicine.anatomical_structure ,Neurology ,Chemistry ,T cell ,Pediatrics, Perinatology and Child Health ,medicine ,Cancer research ,Neurology (clinical) ,Genetics (clinical) - Published
- 2017
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13. Elspeth R. M. Dusinberre: Aspects of Empire in Achaemenid Sardis
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Florian S. Knauß
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media_common.quotation_subject ,Empire ,Art ,Ancient history ,media_common - Abstract
Elspeth R. M. Dusinberre: Aspects of Empire in Achaemenid Sardis. Cambridge: Cambridge UP 2003. XV, 325 S. 103 Abb. 4°. 65 £.
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- 2011
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14. An Achaemenid « Palace » at Qarajamirli (Azerbaijan) Preliminary Report on the Excavations in 2006
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Florian S. Knauß, Iulon Gagoshidze, and Ilyas Babaev
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Archeology ,History ,Sculpture ,media_common.quotation_subject ,Empire ,Plan (archaeology) ,Excavation ,Ancient history ,Archaeology ,language.human_language ,Preliminary report ,language ,Pottery ,Classics ,Architecture ,media_common ,Persian - Abstract
Excavations on a small mound near the village Qarajamirli in western Azerbaijan provided remains of a monumental building, as well as quite a number of fragments of limestone column bases. The symmetrical ground plan of the building, the architectural sculpture and the pottery found on the floor closely follow Persian models from the Achaemenid era. Similar structures are known from Sary Tepe (Azerbaijan) and Gumbati (Georgia). These, as well as the building in Qarajamirli, can be interpreted as the residences of Persian officials, who left this area when the Achaemenid Empire collapsed. The painted pottery from the following period, when some peasants or herdsmen occasionally lived there, so far finds parallels only in Eastern Georgia.
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- 2007
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15. Prostate-specific antigen test in diagnostic evaluation of chronic prostatitis/chronic pelvic pain syndrome
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Anthony J. Schaeffer, Stephen D. Mikolajczyk, Kathleen J. Propert, Robert B. Nadler, Jill S. Knauss, Richard B. Alexander, Jackson E. Fowler, J. Richard Landis, and Mary McNaughton Collins
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Gynecology ,Nephrology ,medicine.medical_specialty ,business.industry ,Urology ,Pelvic pain ,Prostatitis ,urologic and male genital diseases ,medicine.disease ,Prostate-specific antigen ,Prostate cancer ,Chronic prostatitis/chronic pelvic pain syndrome ,Antigen ,Internal medicine ,medicine ,medicine.symptom ,business ,Cohort study - Abstract
Objectives To determine whether prostate-specific antigen (PSA), the percent free PSA, or free PSA isoforms may be used as diagnostic markers for chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS; National Institutes of Health category IIIa and IIIb). Methods We evaluated 421 patients enrolled in the Chronic Prostatitis Cohort Study and 112 age-matched controls. Subjects were stratified by the number of white blood cells (WBCs) in their expressed prostatic secretions and pain as determined by the National Institutes of Health Chronic Prostatitis Symptom Index. Results Total PSA, free PSA, and [−2]proPSA ([−2]pPSA) were significantly elevated in those with CP/CPPS compared with controls (mean PSA 1.97 ng/mL versus 1.72 ng/mL, P = 0.03; mean free PSA 0.76 ng/mL versus 0.70 ng/mL, P = 0.01; and [−2]pPSA 2.38 ng/mL versus 1.80 ng/mL, P = 0.04). The percent free PSA was not significantly different between the patients and controls. For those with CP/CPPS, the percent free PSA was significantly lower as the WBC count rose in the expressed prostatic secretions (0 WBCs = 43.29 versus more than 25 WBCs = 26.52; P Conclusions Men with elevated PSA values and CP/CPPS should be treated as one would any other patient screened for prostate cancer with an elevated PSA level. Although PSA, free PSA, and [−2]pPSA were slightly elevated in men with CP/CPPS, the low sensitivity and specificity do not warrant using them as biomarkers for CP/CPPS.
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- 2006
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16. Ancient Persia and the Caucasus
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Florian S. Knauss
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Archeology ,History ,geography ,geography.geographical_feature_category ,Middle East ,Visual Arts and Performing Arts ,media_common.quotation_subject ,Empire ,Ancient history ,Present day ,language.human_language ,Transcaucasia ,Political history ,language ,Sphere of influence ,Mountain range ,media_common ,Persian - Abstract
In the middle of the 6th century BC Cyrus the Great founded an empire which dominated the Near and Middle East for more than two centuries. Nevertheless, for a long time scholars emphasized the feebleness of Achaemenid traces in archaeological records. The Achaemenid imprint was hardly visible in most of the provinces. In the recent past this situation has begun to change2. In the following I am going to present an area on the north-western periphery of the vast empire: the Caucasus. In Russian terminology the region south of the Caucasus mountain range is called Transcaucasia. It includes the former Soviet republics Armenia, Azerbaijan and Georgia. Whereas Transcaucasia formed a kind of strategic unity from the Russian point of view, the geography as well as the (ancient) political history of these three countries have little in common. The region which the Russians call Cis-Caucasia, i.e. Dagestan, Chechnya, Ingushetia, North Ossetia and the Kuban region, all still belonging to Russia, have been beyond the Persian sphere of influence in antiquity and will therefore be omitted here. Until the present day there is no agreement among scholars upon the extension of the Persian Empire on its north-western border. Textual sources are rather quiet concerning the above-mentioned countries for the time of the Achaemenid Empire. Nevertheless, there is little reason to doubt that they became part of the empire some time in the later 6th century BC3.
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- 2006
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17. Otar Lordkipanidze: Phasis. The River and City in Colchis
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Florian S. Knauß
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Otar Lordkipanidze: Phasis. The River and City in Colchis. Stuttgart: Steiner 2000. 145 S. 2 Abb. 8 Taf. (Geographica Historica. 15.).
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- 2005
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18. Predictors of quality of life and pain in chronic prostatitis/chronic pelvic pain syndrome: findings from the National Institutes of Health Chronic Prostatitis Cohort Study
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Jill S. Knauss, Yan Lin Wang, J. Curtis Nickel, Dean A. Tripp, and J. Richard Landis
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Adult ,Male ,medicine.medical_specialty ,Cross-sectional study ,Urology ,Prostatitis ,Pelvic Pain ,Cohort Studies ,Quality of life ,Chronic prostatitis/chronic pelvic pain syndrome ,medicine ,Humans ,Depression (differential diagnoses) ,Aged ,Aged, 80 and over ,Depressive Disorder ,Marital Status ,business.industry ,Pelvic pain ,Age Factors ,Syndrome ,Middle Aged ,Urination Disorders ,medicine.disease ,Cross-Sectional Studies ,Mood ,Chronic Disease ,Quality of Life ,Physical therapy ,Regression Analysis ,medicine.symptom ,business ,Cohort study - Abstract
OBJECTIVES To examine the cross-sectional relationship of age, urinary and depressive symptoms and partner status on pain intensity and quality of life (QoL) in chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS). PATIENTS AND METHODS In all, 463 men enrolled in the National Institutes of Health (NIH) Chronic Prostatitis Cohort Study from seven clinical centres (six in the USA and one in Canada) reported baseline screening symptoms using the NIH Chronic Prostatitis Symptom Index (CPSI). The CPSI provides scores for pain, urinary symptoms and QoL. In addition, a demographic profile, including age and partner (living with another) status, and a depressive symptom score were obtained. Regression modelling of QoL, adjusting for between-centre variability, examined the unique effects of age, partner status, urological symptoms, depressive symptoms and pain. RESULTS Urinary scores, depressive symptoms and pain intensity scores significantly predicted QoL for patients with CP/CPPS (higher CPSI QoL scores indicated more impairment; median 8.0, range 0–12). On average, for every 1-point increase in urinary scores, there was a corresponding increase in QoL score of 0.118 points (P = 0.001); for every 1-point increase in pain intensity score, there was a corresponding increase in QoL score of 0.722 points (P
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- 2004
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19. Comparative cardiac safety of low-dose thioridazine and low-dose haloperidol
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Warren B. Bilker, Jill S. Knauss, Robert F. Reynolds, David J. Margolis, Mary F. Morrison, Sean Hennessy, Brian L. Strom, Stephen E. Kimmel, and Dale B. Glasser
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Adult ,Adolescent ,Heart disease ,Thioridazine ,Sudden death ,Cohort Studies ,Drug Safety ,medicine ,Haloperidol ,Humans ,Pharmacology (medical) ,Child ,Aged ,Pharmacology ,Dose-Response Relationship, Drug ,Proportional hazards model ,business.industry ,Infant, Newborn ,Dopamine antagonist ,Infant ,Arrhythmias, Cardiac ,Middle Aged ,Prognosis ,medicine.disease ,Confidence interval ,Death, Sudden, Cardiac ,Child, Preschool ,Anesthesia ,Regression Analysis ,business ,Antipsychotic Agents ,Cohort study ,medicine.drug - Abstract
Aim To compare the rate of ventricular arrhythmia, sudden death and unexplained or unattended death among users of thioridazine and haloperidol. Methods Observational cohort study of thioridazine and haloperidol users in the UK General Practice Research Database (GPRD) using data from 1987 through 29 June 2000. Patients were followed for 30 days following each study prescription. The event of interest was a diagnosis of ventricular arrhythmia, sudden death, or unexplained or unattended death. Cox regression was used to calculate rate ratios (RRs) and 95% confidence intervals (CIs), to examine potential confounding factors, and to examine dose–response relationships. Results Use of thioridazine and haloperidol in the GPRD was primarily in older patients, at low dose (median daily dose 31 mg thioridazine, 1.8 mg haloperidol). There was no association between thioridazine use and the rate of ventricular arrhythmia, sudden death, and unexplained or unattended death (adjusted RR 0.9, 95% CI 0.7, 1.1). The rate did not appear to increase with dose for either drug over the range observed. Conclusions These results suggest that low-dose thioridazine and haloperidol have similar cardiac safety.
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- 2004
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20. Administration of Parenteral Iron and Mortality among Hemodialysis Patients
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Borut Cizman, Harold I. Feldman, Wensheng Guo, Jill S. Knauss, Bruce M. Robinson, Marshall M. Joffe, Eunice D. Franklin-Becker, and Gerald Faich
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Adult ,Male ,medicine.medical_specialty ,Time Factors ,Adolescent ,Iron ,medicine.medical_treatment ,Cohort Studies ,Hemoglobins ,Renal Dialysis ,Internal medicine ,medicine ,Humans ,Infusions, Parenteral ,Dosing ,Adverse effect ,Dialysis ,Aged ,Proportional Hazards Models ,business.industry ,Proportional hazards model ,Hazard ratio ,General Medicine ,Middle Aged ,Confidence interval ,Surgery ,Nephrology ,Multivariate Analysis ,Kidney Failure, Chronic ,Female ,Kidney Diseases ,Hemodialysis ,business ,Cohort study - Abstract
The objective of this study was to evaluate whether the apparent relationship demonstrated in prior studies between iron dosing and mortality in hemodialysis (HD) patients was confounded by incomplete representation of iron dosing and morbidity over time. A cohort study was conducted among 32,566 patients who received at least 1 yr of HD at the Fresenius Medical Corporation dialysis centers during 1996 to 1997. The outcome measure was all-cause mortality through mid-1998. A total of 19 demographic, comorbidity, and laboratory characteristics were available. By proportional hazards analysis, no adverse effect on 2-year survival was found for baseline iron dose over 6 mo ofor = 1000 mg, but statistically significant elevated mortality was demonstrated for iron doses1000 mg to 1800 mg (adjusted hazards ratio [HR] = 1.09; 95% confidence interval [CI], 1.01 to 1.17) and1800 mg (adjusted HR = 1.18; 95% CI, 1.09 to 1.27). However, fitting multivariable models that appropriately account for time-varying measures of iron administration as well as other fixed and time-varying measures of morbidity, the authors found no statistically significant association between any level of iron administration and mortality. This study suggests that previously observed associations between iron administration and higher mortality may have been confounded, and it provides cautious support for the safety of the judicious administration of cumulative iron doses1000 mg over 6 mo if needed to maintain target hemoglobin levels among patients treated with maintenance HD.
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- 2004
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21. Medical conditions associated with venous leg ulcers
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Jill S. Knauss, Warren B. Bilker, and David J. Margolis
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Male ,medicine.medical_specialty ,Comorbidity ,Dermatology ,Venous leg ulcer ,Angina ,Risk Factors ,Internal medicine ,medicine ,Humans ,Myocardial infarction ,Depression (differential diagnoses) ,Aged ,Retrospective Studies ,Aged, 80 and over ,Hip surgery ,business.industry ,Leg Ulcer ,medicine.disease ,United Kingdom ,Surgery ,Venous thrombosis ,Heart failure ,Cellulitis ,Regression Analysis ,Female ,business - Abstract
Summary Background In patients who have a venous leg ulcer, very little is known about the frequency of their concomitant medical conditions. Objectives To evaluate the frequency that other medical conditions are associated with a new venous leg ulcer. Methods We studied a 10% random sample of elderly patients registered in the General Practice Research Database between 1988 and 1996. We describe the frequency of medical conditions using simple percentages. In order to assess the associations between medical conditions and the onset of a venous leg ulcer, we used logistic regression models. Results Several medical conditions occur commonly in patients who develop venous leg ulcers, including anaemia, angina, asthma, cellulitis of the lower extremity, depression, diabetes, limb oedema, hypertension, osteoarthritis, pneumonia and urinary tract infection. After statistical adjustment many medical conditions were significantly associated with those who had recent onset of a venous leg ulcer, including asthma, cellulitis of the lower extremity, congestive heart failure, diabetes, deep venous thrombosis, lower limb oedema, osteoarthritis, peripheral vascular arterial disease of the lower extremity, rheumatoid arthritis, history of hip surgery, and history of venous surgery/ligation. Unexpectedly, some illnesses were inversely associated with those that had recent onset of a venous leg ulcer, including angina, cerebral vascular accident, depression, malignancy, myocardial infarction, pneumonia and urinary tract infection. Conclusions Physicians caring for individuals with venous leg ulcers need to be aware that it is likely that these individuals may have one of the comorbid illnesses listed above.
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- 2004
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22. Predictors of successful arteriovenous fistula maturation
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Sylvia E. Rosas, Jill S. Knauss, Marshall M. Joffe, Harold I. Feldman, J.Eileen Burns, and Kenneth L. Brayman
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Adult ,Male ,congenital, hereditary, and neonatal diseases and abnormalities ,medicine.medical_specialty ,medicine.medical_treatment ,Arteriovenous fistula ,Logistic regression ,Arteriovenous Shunt, Surgical ,Renal Dialysis ,Internal medicine ,medicine ,Humans ,cardiovascular diseases ,Prospective cohort study ,Stroke ,Dialysis ,Aged ,Aged, 80 and over ,Receiver operating characteristic ,business.industry ,Middle Aged ,medicine.disease ,Comorbidity ,Surgery ,Nephrology ,Cardiology ,Kidney Failure, Chronic ,Female ,Hemodialysis ,Epidemiologic Methods ,business - Abstract
Background: Understanding the factors associated with successful arteriovenous fistula (AVF) maturation may provide an opportunity to improve vascular access outcomes. Methods: This prospective cohort study enrolled 348 hemodialysis patients receiving an AVF and followed them until ascertainment of successful AVF maturation. Multivariable logistic regression was used to develop (1) explanatory models of factors associated with AVF success and (2) models for predicting success based on sociodemographic and comorbidity profiles. Receiver operating characteristic (ROC) curve analysis was performed to evaluate the discriminative ability of our predictive model. Predictive probabilities of AVF maturation under the assumption of optimal surgical technique defined by explanatory models were calculated. Results: A total of 55.5% of AVFs successfully matured. A history of stroke or transient ischemic attack, increasing age, and dependence on dialysis at the time of access placement were associated with lower probabilities of maturation. Of potentially modifiable variables, maturation was associated with greater intraoperative doses of heparin, use of large-diameter veins, and mean arterial pressure of 85 mm Hg or greater. Using optimal surgical technique, the probability of successful AVF maturation would have been as high as 84%. A predictive logistic regression model had moderate ability to predict AVF maturation under optimal surgical therapy with an area under the ROC curve of 0.69. Conclusion: Surgical technique potentially may be modified to yield a greater probability of successful AVF maturation. Predictive probabilities of successful AVF maturation under optimal surgical technique reinforce the view that functioning AVFs can be achieved in a large proportion of hemodialysis patients, consistent with experience in selected regions of the United States and abroad.
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- 2003
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23. Compliance with oral HRT in postmenopausal women in clinical trials—meta analysis
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Jesse A. Berlin, Jill S. Knauss, Eva Lydick, and Yochi Shmuely
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medicine.medical_specialty ,Time Factors ,Hormone Replacement Therapy ,medicine.medical_treatment ,MEDLINE ,Administration, Oral ,General Biochemistry, Genetics and Molecular Biology ,Internal medicine ,medicine ,Humans ,business.industry ,Obstetrics and Gynecology ,Hormone replacement therapy (menopause) ,Odds ratio ,Middle Aged ,medicine.disease ,Confidence interval ,Surgery ,Postmenopause ,Menopause ,Clinical trial ,Research Design ,Sample size determination ,Meta-analysis ,Multivariate Analysis ,Patient Compliance ,Female ,business - Abstract
Objective: To assess compliance with oral hormone replacement therapy (HRT) over time in postmenopausal women in clinical trials and to examine aspects of study conduct (e.g. randomized vs. nonrandomized design) that might be associated with observed compliance rates. Methods : Aggregation of data from the available published studies using meta-analysis. Eligible studies had to be clinical trials reporting compliance with oral HRT among postmenopausal women and have a sample size of at least 20. MEDLINE and EMBASE databases were used through January 1998 to find studies that assessed compliance with oral HRT in postmenopausal women in clinical trials . Summary estimates of compliance, and of associations between compliance and features of study conduct, were computed allowing for clustering of data within studies. Results: Thirty reports met the inclusion criteria. Overall compliance at about 1 year on average was 83.4%. In a multivariable model, one variable, whether compliance was the primary objective of the study or not, remained statistically significant, even after adjustment for clustering (odds ratio=0.47, 95% confidence interval: 0.22–1.00, P =0.05). Conclusions: This study supports the importance of using appropriate methods for measuring compliance, if valid estimates of compliance are a serious objective of an investigation. There has been much discussion about the need for increased medication compliance, particularly for those medications used for prevention, but the means and methods to improve compliance remain elusive.
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- 2003
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24. Leukocytes And Bacteria In Men With Chronic Prostatitis/Chronic Pelvic Pain Syndrome Compared To Asymptomatic Controls
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Jill S. Knauss, Kathleen J. Propert, J. Curtis Nickel, Anthony J. Schaeffer, J. Richard Landis, and Richard B. Alexander
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Adult ,Male ,medicine.medical_specialty ,Urology ,Prostatitis ,Urine ,Pelvic Pain ,Gastroenterology ,Asymptomatic ,Leukocyte Count ,Chronic prostatitis/chronic pelvic pain syndrome ,Risk Factors ,Semen ,Prostate ,Internal medicine ,Humans ,Medicine ,Prospective Studies ,Risk factor ,Prospective cohort study ,Urine cytology ,Gynecology ,medicine.diagnostic_test ,business.industry ,Pelvic pain ,Syndrome ,Middle Aged ,medicine.disease ,Logistic Models ,medicine.anatomical_structure ,Case-Control Studies ,Chronic Disease ,medicine.symptom ,business - Abstract
Chronic prostatitis has been traditionally characterized by inflammation and/or infection of the prostate gland, objectively categorized by white blood cells and cultured bacteria in prostate specific specimens. We compared leukocyte counts and localization rates for bacterial cultures of segmented urine samples (VB1, VB2, VB3), expressed prostatic secretion (EPS) and semen in men diagnosed with chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS) to men without pelvic pain (controls).A total of 463 men enrolled in the National Institutes of Health Chronic Prostatitis Cohort study and 121 age matched men without urinary symptoms had leukocyte counts performed and 5-day bacterial cultures on specimens obtained from a standard 4-glass test (VB1, VB2, EPS, VB3) and semen. All risk factor comparisons between case and control analyses were tested using generalized Mantel-Haenszel methods, and multivariable models were developed using logistic regression methods, adjusting for clustering by clinical center within both methods.Men with CP/CPPS had statistically higher leukocyte counts in all segmented urine samples and EPS, but not in semen compared to asymptomatic control men. However, the control population also had a high prevalence of leukocytes. Of the men with CP/CPPS 50% and 32% had 5 or more, or 10 or more white blood cells (WBCs) per high power field, respectively, in EPS compared to 40% and 20% of the control population. Similarly, 32% and 14% of the patients with CP/CPPS had 5 or more, or 10 or more WBCs per high power field in VB3 compared to 19% and 11% in the control population. Localization of uropathogenic bacteria in EPS, VB3 and/or semen was similar in men with CP/CPPS (8.0%) and asymptomatic men (8.3%).Men with CP/CPPS have significantly higher leukocyte counts in all segmented urine samples and EPS but not in semen as compared to controls. There is no difference in rates of localization of bacterial cultures for men with CP/CPPS compared to control men. The high prevalence of WBCs and positive bacterial cultures in the asymptomatic control population raises questions about the clinical usefulness of the standard 4-glass test as a diagnostic tool in men with CP/CPPS.
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- 2003
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25. Medical conditions as risk factors for pressure ulcers in an outpatient setting
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Warren B. Bilker, Jill S. Knauss, David J. Margolis, and Mona Baumgarten
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Male ,Aging ,medicine.medical_specialty ,Disease ,Angina ,Ambulatory care ,Alzheimer Disease ,Risk Factors ,Internal medicine ,Humans ,Medicine ,Aged ,Aged, 80 and over ,Heart Failure ,Pressure Ulcer ,Hip surgery ,Hip fracture ,business.industry ,Confounding Factors, Epidemiologic ,General Medicine ,medicine.disease ,Heart failure ,Ambulatory ,Physical therapy ,Female ,Geriatrics and Gerontology ,business ,Cohort study - Abstract
Objectives: the purpose of this study was to evaluate the likelihood that the presence of certain medical conditions in older ambulatory patients are associated with the risk of developing a new pressure ulcer. Design: a cohort study. Setting and subjects: a large outpatient record database from the United Kingdom called the General Practice Research Database. Methods: the frequency of disease was reported as simple percentages and the associations between the medical conditions and the development of a pressure ulcer as instantaneous rate ratios. Results: we studied 75,168 older individuals. Pressure ulcers occurred in 1,211 individuals. The medical conditions that were significantly associated with the development of a pressure ulcer after adjustment were: Alzheimer’s disease, congestive heart failure, chronic obstructive pulmonary disease, cerebral vascular accident, diabetes mellitus, deep venous thrombosis, hip fracture, hip surgery, limb paralysis, lower limb oedema, malignancy, malnutrition, osteoporosis, Parkinson’s disease, rheumatoid arthritis, and urinary tract infections. Angina, hypertension, and pneumonia were inversely associated with the development of a pressure ulcer. Conclusions: it is important that physicians recognise that patients with many medical conditions may be at higher risk for pressure ulcers so that even in the ambulatory care environment appropriate prevention and detection strategies can be directed towards the patients who are most likely to benefit.
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- 2003
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26. Determinants of successful synthetic hemodialysis vascular access graft placement
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Jill S. Knauss, Harold I. Feldman, Marshall M. Joffe, Sylvia E. Rosas, Kenneth L. Brayman, and J.Eileen Burns
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Male ,medicine.medical_specialty ,Time Factors ,medicine.medical_treatment ,030232 urology & nephrology ,030204 cardiovascular system & hematology ,Rate ratio ,Cohort Studies ,03 medical and health sciences ,Catheters, Indwelling ,Postoperative Complications ,0302 clinical medicine ,Predictive Value of Tests ,Renal Dialysis ,medicine.artery ,medicine ,Humans ,Prospective Studies ,Treatment Failure ,Brachial artery ,Radial artery ,Prospective cohort study ,Vascular Patency ,Kidney transplantation ,Dialysis ,Aged ,business.industry ,Graft Survival ,Intermittent Claudication ,Middle Aged ,medicine.disease ,Kidney Transplantation ,Survival Analysis ,United States ,3. Good health ,Surgery ,surgical procedures, operative ,Radial Artery ,Kidney Failure, Chronic ,Female ,Hemodialysis ,medicine.symptom ,Cardiology and Cardiovascular Medicine ,Claudication ,business ,Follow-Up Studies - Abstract
Objective: Synthetic vascular grafts, the most common type of permanent dialysis graft used in the United States, are associated with great morbidity and expense. In this cohort study of patients undergoing hemodialysis and receiving a new synthetic vascular graft, detailed intraoperative procedural data were examined as predictors of graft dysfunction and failure. Methods: A prospective cohort study of patients receiving hemodialysis who had undergone synthetic (polytetrafluoroethylene) graft placement over 4½ years were followed up until either the graft was no longer usable, kidney transplantation was performed, the patient died, or the study ended. The principal methods of analysis used were the Kaplan-Meier method, to compute survival function for primary and secondary graft patency, and Cox proportional hazards regression, to model associations between predictor variables and graft failure. Results: Of 284 patients enrolled in the study, 172 patients (61%) had at least one graft-related event, ie, temporary graft dysfunction or graft failure, during follow-up. Three-year cumulative graft survival was 54% (95% confidence interval, 45%-62%). Using proportional hazards analysis, history of claudication (rate ratio [RR], 2.14 [range, 0.97-4.73]; P =.06), number of previous permanent grafts (1 graft: RR, 1.49 [range, 0.88-2.51]; 2 or more grafts: RR, 2.85 [range, 1.43-5.69]; P =.01), dialysis dependency at surgery (RR, 2.96 [range, 1.23-7.12]; P =.02), and use of arterial clamps in construction of the graft (RR, 2.32 [range, 1.14-4.73]; P =.02) were associated with lower survival, even after accounting for medical history. Type of graft material, ie, Gore-Tex versus other material (RR, 0.28 [range, 0.16-0.50]; P
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- 2003
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27. Leukocyte and Bacterial Counts Do Not Correlate With Severity of Symptoms in Men With Chronic Prostatitis: The National Institutes of Health Chronic Prostatitis Cohort Study
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Richard B. Alexander, Daniel A. Shoskes, Scott I. Zeitlin, Leroy M. Nyberg, Michel A. Pontari, Mark S. Litwin, J. Richard Landis, Kathleen J. Propert, Carissa A. Mazurick, Jackson E. Fowler, Jill S. Knauss, J. Curtis Nickel, Michael P. O'Leary, Robert B. Nadler, Anthony J. Schaeffer, and John W. Kusek
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Gynecology ,medicine.medical_specialty ,business.industry ,Pelvic pain ,Urology ,Prostatitis ,Bacteriuria ,Urine ,urologic and male genital diseases ,medicine.disease ,medicine.anatomical_structure ,White blood cell ,Internal medicine ,medicine ,Intractable pain ,medicine.symptom ,business ,Cohort study ,Antibacterial agent - Abstract
Purpose: We examine whether leukocytes and bacteria correlate with symptom severity in men with chronic prostatitis/chronic pelvic pain syndrome.Materials and Methods: All 488 men screened into the National Institutes of Health Chronic Prostatitis Cohort Study before close of recruitment on August 22, 2001 were selected for analysis. The National Institutes of Health Chronic Prostatitis Symptom Index, including subscores, were used to measure symptoms. Urethral inflammation was defined as white blood cell (WBC) counts of 1 or more (1+) in the first voided urine. Participants were classified as category IIIa based on WBC counts of 5 or more, or 10 or more (5+, 10+) in the expressed prostatic secretion, or 1+ or 5+ either in the post-expressed prostatic secretion urine (voided urine 3) or semen. Uropathogens were classified as localizing if the designated bacterial species were absent in voided urine 1 and voided urine 2 but present in expressed prostatic secretion, voided urine 3 or semen, or prese...
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- 2002
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28. Demographic And Clinical Characteristics Of Men With Chronic Prostatitis
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Jill S. Knauss, J. Curtis Nickel, Michael P. O'Leary, Anthony J. Schaeffer, Robert B. Nadler, Mark S. Litwin, J. Richard Landis, Jackson E. Fowler, Kathleen J. Propert, Lori Kishel, Scott I. Zeitlin, Richard B. Alexander, Leroy M. Nyberg, John W. Kusek, Daniel Shoskes, Carissa A. Mazurick, and Michel A. Pontari
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medicine.medical_specialty ,medicine.diagnostic_test ,business.industry ,Cross-sectional study ,Pelvic pain ,Urology ,Prostatitis ,Physical examination ,medicine.disease ,Chronic prostatitis/chronic pelvic pain syndrome ,Quality of life ,Internal medicine ,Cohort ,medicine ,Physical therapy ,medicine.symptom ,business ,Cohort study - Abstract
Purpose: We describe the study design of the National Institutes of Health Chronic Prostatitis Cohort (CPC) study characterizing men with chronic prostatitis/the chronic pelvic pain syndrome.Materials and Methods: All 488 men screened into the CPC study before close of recruitment on August 22, 2001 were selected for analysis. The National Institutes of Health Chronic Prostatitis Symptom Index, including subscores, was used to measure symptoms. A comprehensive history, physical examination and demographic profile were obtained from each participant. Generalized Mantel-Haenszel procedures were used to investigate baseline associations between selected factors and symptoms.Results: Chronic prostatitis/chronic pelvic pain syndrome is a chronic syndrome affecting men over a wide age range. The majority of CPC study participants are white, well educated and affluent. However, lower education, lower income and unemployment were associated with more severe symptoms. Patients most frequently reported pain in the ...
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- 2002
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29. The Incidence and Prevalence of Pressure Ulcers among Elderly Patients in General Medical Practice
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Jill S. Knauss, Warren B. Bilker, Brian L. Strom, Mona Baumgarten, and David J. Margolis
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Male ,Gerontology ,Databases, Factual ,Epidemiology ,Prevalence ,MEDLINE ,Cohort Studies ,Patient age ,Humans ,Medicine ,Aged ,Aged, 80 and over ,Pressure Ulcer ,Wound Healing ,General medical practice ,business.industry ,Incidence ,Incidence (epidemiology) ,Confidence interval ,Inclusion and exclusion criteria ,Female ,Family Practice ,business ,Demography ,Cohort study - Abstract
PURPOSE: The objective of this study was to estimate the period prevalence and incidence of pressure ulcer among those 65 years of age and older. METHODS: We used a patient-record database called the General Practice Research Database (GPRD). Subjects were 65 years of age and older and cases were ascertained based on strict inclusion and exclusion criteria. The accuracy of the ascertainment strategy was estimated using mailed physician-answered questionnaires. Annual period prevalence and age-specific incidence were estimated per 100 person-years with exact 95% confidence intervals (CI). RESULTS: The accuracy of our ascertainment strategy was excellent, with a positive predictive value of 100% (95% CI: 92%,100%) and negative predictive value of 95% (85%, 95%). Over 200,000 person-years of data were analyzed. The annual period prevalence of pressure ulcer among those 65 years of age and older varied from 0.31% to 0.70%. The incidence varied significantly with advancing patient age from 0.18 to 3.36 per 100-person years (p < 0.001) but was not associated with gender (p = 0.95). CONCLUSIONS: Pressure ulcers are seen in the general practice setting. They are most likely to occur in those over 85 years of age. Preventative strategies within the general practice setting should concentrate on the oldest of the elderly.
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- 2002
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30. Der lineare Inselstil: Eine kykladische Keramikwerkstatt am Übergang von der spätgeometrischen zur archaischen Zeit. By Florian S. Knauß
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Kenneth Sheedy and Florian S. KnauSS
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Archeology - Published
- 1999
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31. A case-control study of risk factors in men with chronic pelvic pain syndrome
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Elizabeth A. Calhoun, Mary McNaughton-Collins, Mark S. Litwin, John W. Kusek, Michael P. O'Leary, Jill S. Knauss, Thomas L. Jang, Michel A. Pontari, and J. Richard Landis
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Adult ,Male ,medicine.medical_specialty ,Urology ,Cystitis, Interstitial ,Prostatitis ,Pelvic Pain ,Asymptomatic ,Male Urogenital Diseases ,Tamsulosin ,Internal medicine ,Surveys and Questionnaires ,Epidemiology ,Medicine ,Humans ,Medical history ,Risk factor ,Gynecology ,business.industry ,Pelvic pain ,Urethritis ,Case-control study ,Syndrome ,Middle Aged ,medicine.disease ,United States ,Cardiovascular Diseases ,Chronic Disease ,medicine.symptom ,Nervous System Diseases ,business ,Epidemiologic Methods ,medicine.drug - Abstract
In the section on the lower urinary tract this month there are several papers of general interest. First, authors from the USA present a case-control study of risk factors in men with chronic pelvic pain syndrome. There are also papers presenting important data on alfuzosin, dutasteride, and tamsulosin versus naftopidil, respectively. In addition, the use of thermo-expandable prostate stents is further explored by authors from the UK and Denmark. Finally, authors from Austria describe the use of a new minimally invasive device in the treatment of incontinence after prostatectomy. OBJECTIVE To compare the demographic, behavioural, clinical and medical history characteristics of men with chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS) and asymptomatic controls, to identify characteristics that might be associated with this syndrome. PATIENTS AND METHODS Self-administered epidemiological questionnaires were completed by 463 men with CP/CPPS and 121 asymptomatic age-matched controls. We compared the prevalence of possible risk factors between men with CP/CPPS and controls, using generalized Mantel-Haenszel tests, and developed multivariate predictive models using logistic regression methods, adjusting for clustering by clinical centre within both methods. RESULTS Compared to controls, men with CP/CPPS reported a significantly greater lifetime prevalence of nonspecific urethritis (12% vs 4%, P = 0.008), cardiovascular disease (11% vs 2%, P = 0.004), neurological disease (41% vs 14%, P
- Published
- 2005
32. Ciprofloxacin or tamsulosin in men with chronic prostatitis/chronic pelvic pain syndrome: a randomized, double-blind trial
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Mark S. Litwin, Richard B. Alexander, Mary McNaughton-Collins, Michel A. Pontari, Daniel A. Shoskes, Yanlin Wang, Scott I. Zeitlin, Kathleen J. Propert, Craig V. Comiter, J. Richard Landis, Jackson E. Fowler, Anthony J. Schaeffer, John W. Kusek, Michael P. O'Leary, Robert B. Nadler, Jill S. Knauss, J. Curtis Nickel, Nand S. Datta, and Leroy M. Nyberg
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Adult ,Male ,Tamsulosin ,medicine.medical_specialty ,Prostatitis ,Placebo ,Pelvic Pain ,law.invention ,Placebos ,Randomized controlled trial ,Chronic prostatitis/chronic pelvic pain syndrome ,Anti-Infective Agents ,Double-Blind Method ,law ,Ciprofloxacin ,Internal medicine ,Internal Medicine ,medicine ,Outpatient clinic ,Humans ,Treatment Failure ,Adrenergic alpha-Antagonists ,Antibacterial agent ,Sulfonamides ,business.industry ,Pelvic pain ,General Medicine ,Syndrome ,Middle Aged ,medicine.disease ,Surgery ,Chronic Disease ,Drug Therapy, Combination ,medicine.symptom ,business ,medicine.drug - Abstract
Background Chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS) in men is principally defined by pain in the pelvic region lasting more than 3 months. No cause of the disease has been established, and therapies are empirical and mostly untested. Antimicrobial agents and alpha-adrenergic receptor blockers are frequently used. Objective To determine whether 6-week therapy with ciprofloxacin or tamsulosin is more effective than placebo at improving symptoms in men with refractory, long-standing CP/CPPS. Design Randomized, double-blind trial with a 2 x 2 factorial design comparing 6 weeks of therapy with ciprofloxacin, tamsulosin, both drugs, or placebo. Setting Urology outpatient clinics at 10 tertiary care medical centers in North America. Patients Patients were identified from referral-based practices of urologists. One hundred ninety-six men with a National Institutes of Health Chronic Prostatitis Symptom Index (NIH-CPSI) score of at least 15 and a mean of 6.2 years of symptoms were enrolled. Patients had received substantial previous treatment. Measurements The authors evaluated NIH-CPSI total score and subscores, patient-reported global response assessment, a generic measure of quality of life, and adverse events. Interventions Ciprofloxacin, 500 mg twice daily; tamsulosin, 0.4 mg once daily; a combination of the 2 drugs; or placebo. Results The NIH-CPSI total score decreased modestly in all treatment groups. No statistically significant difference in the primary outcome was seen for ciprofloxacin versus no ciprofloxacin (P = 0.15) or tamsulosin versus no tamsulosin (P > 0.2). Treatments also did not differ significantly for any of the secondary outcomes. Limitations Treatment lasting longer than 6 weeks was not tested. Patients who had received less pretreatment may have responded differently. Conclusion Ciprofloxacin and tamsulosin did not substantially reduce symptoms in men with long-standing CP/CPPS who had at least moderate symptoms.
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- 2004
33. Cardiac arrest and ventricular arrhythmia in patients taking antipsychotic drugs: cohort study using administrative data
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Warren B. Bilker, Sean Hennessy, David J. Margolis, Mary F. Morrison, Dale B. Glasser, Jill S. Knauss, Brian L. Strom, Stephen E. Kimmel, and Robert F. Reynolds
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Adult ,Male ,Heart disease ,medicine.medical_treatment ,Thioridazine ,QT interval ,Cohort Studies ,medicine ,Haloperidol ,Confidence Intervals ,Humans ,Risk factor ,Antipsychotic ,Clozapine ,General Environmental Science ,Aged ,Risperidone ,business.industry ,Medicaid ,General Engineering ,Arrhythmias, Cardiac ,General Medicine ,Middle Aged ,medicine.disease ,United States ,Heart Arrest ,Death, Sudden, Cardiac ,Anesthesia ,Papers ,cardiovascular system ,Schizophrenia ,General Earth and Planetary Sciences ,Female ,business ,medicine.drug ,Antipsychotic Agents - Abstract
Objective: To examine the rates of cardiac arrest and ventricular arrhythmia in patients with treated schizophrenia and in non-schizophrenic controls. Design: Cohort study of outpatients using administrative data. Setting: 3 US Medicaid programmes. Participants: Patients with schizophrenia treated with clozapine, haloperidol, risperidone, or thioridazine; a control group of patients with glaucoma; and a control group of patients with psoriasis. Main outcome measure: Diagnosis of cardiac arrest or ventricular arrhythmia. Results: Patients with treated schizophrenia had higher rates of cardiac arrest and ventricular arrhythmia than controls, with rate ratios ranging from 1.7 to 3.2. Overall, thioridazine was not associated with an increased risk compared with haloperidol (rate ratio 0.9, 95% confidence interval 0.7 to 1.2). However, thioridazine showed an increased risk of events at doses 600 mg (2.6, 1.0 to 6.6; P=0.049) and a linear dose-response relation (P=0.038). Conclusions: The increased risk of cardiac arrest and ventricular arrhythmia in patients with treated schizophrenia could be due to the disease or its treatment. Overall, the risk with thioridazine was no worse than that with haloperidol. Thioridazine may, however, have a higher risk at high doses, although this finding could be due to chance. To reduce cardiac risk, thioridazine should be prescribed at the lowest dose needed to obtain an optimal therapeutic effect. What is already known on this topic Thioridazine seems to prolong the electrocardiographic QT interval more than haloperidol Although QT prolongation is used as a marker of arrhythmogenicity, it is unknown whether thioridazine is any worse than haloperidol with regard to cardiac safety What this study adds Patients taking antipsychotic drugs had higher risks of cardiac events than control patients with glaucoma or psoriasis Overall, the risk of cardiac arrest and ventricular arrhythmia was not higher with thioridazine than haloperidol Thioridazine may carry a greater risk than haloperidol at high doses Patients should be treated with the lowest dose of thioridazine needed to treat their symptoms
- Published
- 2002
34. Leukocyte and bacterial counts do not correlate with severity of symptoms in men with chronic prostatitis: the National Institutes of Health Chronic Prostatitis Cohort Study
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Anthony J, Schaeffer, Jill S, Knauss, J Richard, Landis, Kathleen J, Propert, Richard B, Alexander, Mark S, Litwin, J Curtis, Nickel, Michael P, O'Leary, Robert B, Nadler, Michel A, Pontari, Daniel A, Shoskes, Scott I, Zeitlin, Jackson E, Fowler, Carissa A, Mazurick, John W, Kusek, and Leroy M, Nyberg
- Subjects
Cohort Studies ,Male ,Leukocyte Count ,Urethra ,Semen ,Chronic Disease ,Colony Count, Microbial ,Prostate ,Humans ,Urine ,Pelvic Pain ,Prostatitis - Abstract
We examine whether leukocytes and bacteria correlate with symptom severity in men with chronic prostatitis/chronic pelvic pain syndrome.All 488 men screened into the National Institutes of Health Chronic Prostatitis Cohort Study before close of recruitment on August 22, 2001 were selected for analysis. The National Institutes of Health Chronic Prostatitis Symptom Index, including subscores, were used to measure symptoms. Urethral inflammation was defined as white blood cell (WBC) counts of 1 or more (1+) in the first voided urine. Participants were classified as category IIIa based on WBC counts of 5 or more, or 10 or more (5+, 10+) in the expressed prostatic secretion, or 1+ or 5+ either in the post-expressed prostatic secretion urine (voided urine 3) or semen. Uropathogens were classified as localizing if the designated bacterial species were absent in voided urine 1 and voided urine 2 but present in expressed prostatic secretion, voided urine 3 or semen, or present in expressed prostatic secretion, voided urine 3 or semen at 2 log concentrations higher than at voided urine 1 or 2. Associations between symptoms, and inflammation and infection were investigated using generalized Mantel-Haenszel methods.Of all participants 50% had urethral leukocytes and of 397 with expressed prostatic secretion samples 194 (49%) and 122 (31%) had 5+ or 10+ WBCs in expressed prostatic secretion, respectively. The prevalence of category IIIa ranged from 90% to 54%, depending on the composite set of cut points. None of the index measures were statistically different (p0.10) for selected leukocytosis subgroups. Based on prostate and semen cultures, 37 of 488 men (8%) had at least 1 localizing uropathogen. None of the index measures were statistically different (p0.10) for selected bacterial culture subgroups.Although men with chronic prostatitis routinely receive anti-inflammatory and antimicrobial therapy, we found that leukocytes and bacterial counts as we defined them do not correlate with severity of symptoms. These findings suggest that factors other than leukocytes and bacteria also contribute to symptoms associated with chronic pelvic pain syndrome.
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- 2002
35. Demographic and clinical characteristics of men with chronic prostatitis: the national institutes of health chronic prostatitis cohort study
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Anthony J, Schaeffer, J Richard, Landis, Jill S, Knauss, Kathleen J, Propert, Richard B, Alexander, Mark S, Litwin, J Curtis, Nickel, Michael P, O'Leary, Robert B, Nadler, Michel A, Pontari, Daniel A, Shoskes, Scott I, Zeitlin, Jackson E, Fowler, Carissa A, Mazurick, Lori, Kishel, John W, Kusek, and Leroy M, Nyberg
- Subjects
Adult ,Male ,Incidence ,Comorbidity ,Middle Aged ,Pelvic Pain ,United States ,Prostatitis ,Cohort Studies ,Cross-Sectional Studies ,Socioeconomic Factors ,Chronic Disease ,Quality of Life ,Humans - Abstract
We describe the study design of the National Institutes of Health Chronic Prostatitis Cohort (CPC) study characterizing men with chronic prostatitis/the chronic pelvic pain syndrome.All 488 men screened into the CPC study before close of recruitment on August 22, 2001 were selected for analysis. The National Institutes of Health Chronic Prostatitis Symptom Index, including subscores, was used to measure symptoms. A comprehensive history, physical examination and demographic profile were obtained from each participant. Generalized Mantel-Haenszel procedures were used to investigate baseline associations between selected factors and symptoms.Chronic prostatitis/chronic pelvic pain syndrome is a chronic syndrome affecting men over a wide age range. The majority of CPC study participants are white, well educated and affluent. However, lower education, lower income and unemployment were associated with more severe symptoms. Patients most frequently reported pain in the perineum and tenderness in the prostate. The highest self-reported diseases were genitourinary (55%), allergies (53%), neurological (40%) and hematopoietic, lymphatic or infectious (40%). This disease has a significant negative impact on mental and physical domains of quality of life. Almost all patients (95%) reported antimicrobial drug use. Of these 488 participants 280 (57%) reported the previous or current use of 5 or more categories of prostatitis related treatments.Chronic prostatitis/chronic pelvic pain syndrome is a multifactorial problem affecting men of all ages and demographics. Patients with the chronic pelvic pain syndrome have dismal quality of life and many have benefited only minimally from empirical, goal directed therapy. Long-term followup of this cohort may answer important questions on the natural treated history of this syndrome.
- Published
- 2002
36. Hormone replacement therapy and prevention of pressure ulcers and venous leg ulcers
- Author
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Warren B. Bilker, Jill S. Knauss, and David J. Margolis
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Adult ,Pressure Ulcer ,Chemotherapy ,medicine.medical_specialty ,medicine.drug_class ,business.industry ,medicine.medical_treatment ,Estrogen Replacement Therapy ,Case-control study ,General Medicine ,medicine.disease ,Venous leg ulcer ,Risk Assessment ,Surgery ,Varicose Ulcer ,Estrogen ,Transgender hormone therapy ,Relative risk ,Case-Control Studies ,medicine ,Humans ,Female ,Database research ,business - Abstract
Pressure ulcers and venous leg ulcers are common chronic wounds. Oestrogens in the form of hormone replacement therapy (HRT) might have an effect on wound healing, but this possibility has not been studied in detail. Using a case-cohort study including elderly patients in the UK General Practice Research Database, we showed that patients who received HRT were less likely to develop a venous leg ulcer (age-adjusted relative risk 0.65 [95% CI 0.61-0.69]) or a pressure ulcer (0.68 [0.62-0.76]) than those who did not use HRT. Therefore, we believe that HRT could be beneficial for the prevention of these wounds.
- Published
- 2002
37. The Nessos shirt: did Herakles die from scleroderma?
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Ketty Peris, Spyridon Schoinas, Jörg C. Prinz, and Florian S. Knauss
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Male ,medicine.medical_specialty ,Scleroderma, Systemic ,Greece ,business.industry ,Dermatology ,Mythology ,medicine.disease ,Scleroderma ,Surgery ,Greece, Ancient ,Humans ,Medicine ,Settore MED/35 - MALATTIE CUTANEE E VENEREE ,business ,History, Ancient - Published
- 2011
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38. Schwermetallbindung durch Blaualgen
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D. Doyscher, I. Maldener, M. Ratzinger, and S. Knauss
- Subjects
General Chemical Engineering ,General Chemistry ,Industrial and Manufacturing Engineering - Abstract
Nutzungsdauer, . die Nutzung von Konzentratoren (Verdampfer) zur R ckgewinnung und R ckf hrung ausgeschleppter Komponenten der Prozessl sung, . die R ckgewinnung von Wertstoffen aus Abwasserteilstr men erfolgte. Die umgesetzten Stoffstromlenkungsmasnahmen f hrten neben einer Verbesserung der Prozesssicherheit zu deutlichen Einsparungen beim Chemikalienund Wassereinsatz sowie zu einer Verminderung des Abfallaufkommens. Am Beispiel der Prozessstufen zur galvanischen Nickelabscheidung und der Prozessstufe „Chromschwefels urebeize“ wird auf die jeweilige technische L sung und die erreichten Ergebnisse n her eingegangen.
- Published
- 2006
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39. Impact of the 1998 World Health Organization/International Society of Urological Pathology Classification System for Urothelial Neoplasms of the Kidney
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Jill S. Knauss, William C Huang, Malathy Kapali, S.B. Malkowicz, P.N. Raghunath, Christopher Kozlowski, Elizabeth M. Genega, Li-Ping Wang, John E. Tomaszewski, and Marta Torres-Quinones
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Adult ,Male ,Pathology ,medicine.medical_specialty ,Urology ,Disease ,Kidney ,World Health Organization ,World health ,Pathology and Forensic Medicine ,Surgical pathology ,Tumor stage ,medicine ,Humans ,Neoplasm Metastasis ,Stage (cooking) ,Grading (tumors) ,Societies, Medical ,Aged ,Neoplasm Staging ,Aged, 80 and over ,Pathology, Clinical ,Clinical pathology ,business.industry ,Papillary tumor ,Anatomical pathology ,Middle Aged ,Urinary Bladder Tumors ,Kidney Neoplasms ,medicine.anatomical_structure ,Cytopathology ,Immunohistochemistry ,Female ,Urothelium ,Hematopathology ,business - Abstract
The classification of urothelial neoplasms of the kidney traditionally has been similar to that of urinary bladder tumors. Several years ago, the classification of papillary urothelial neoplasms was revised. The current study focuses on the application of the 1998 World Health Organization (WHO)/International Society of Urological Pathology classification system to 102 renal pelvic urothelial neoplasms and compares it to the 1973 WHO classification scheme. In this study, all tumors were classified as urothelial carcinomas, and the majority (85%) were papillary. Most patients with papillary tumors presented with 'superficial' disease (< or = pT1). With the 1998 system, most papillary carcinomas were high grade, and were more often invasive as compared to low-grade tumors. Only 34% were low-grade papillary tumors and, of these, most (93%) were noninvasive. With the 1973 system, most papillary tumors were grade 2 or 3, with invasion more common in grade 3 tumors. By 1973 criteria, grade 2 tumors were a heterogeneous group; with 1998 criteria, nearly one-half were high grade and the other half low grade. The grade of papillary urothelial carcinomas with both the 1973 and 1998 grading methods was associated with stage (P=0.001). Our study reveals that papillomas and papillary urothelial neoplasms of low malignant potential are uncommon tumors in the kidney. Renal pelvic papillary urothelial neoplasms are most often carcinomas and are more commonly high grade than low grade. Although both the 1973 and 1998 systems showed a significant association with tumor stage, grade 2 papillary carcinomas are a heterogeneous group by 1973 criteria. The 1998 system provides useful information in that it more clearly defines a papillary tumor's grade and selects for a group of tumors, namely low-grade papillary urothelial carcinomas, for which a low likelihood of invasion can be predicted.
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- 2006
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40. Conceptual behavior in pigeons: Categorization of both familiar and novel examples from four classes of natural and artificial stimuli
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Ramesh S. Bhatt, K. S. Knauss, W. F. Reynolds, and Edward A. Wasserman
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Cognitive science ,Communication ,Pictorial stimuli ,Categorization ,business.industry ,Concept learning ,Natural (music) ,Experimental and Cognitive Psychology ,Psychology ,business ,Ecology, Evolution, Behavior and Systematics - Published
- 1988
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41. Direct patient costs for drugs and consumables at fifteen health facilities in Southern Madagascar, a secondary analysis of patient invoices.
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Franke MA, Neumann A, Nordmann K, Suleymanova D, Ravololohanitra OG, Knauss S, and Emmrich JV
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- Madagascar, Humans, Female, Male, Adult, Adolescent, Child, Middle Aged, Child, Preschool, Young Adult, Infant, Drug Costs, Health Care Costs, Health Expenditures statistics & numerical data, Health Facilities economics
- Abstract
Background: Financial risk protection in health is a key objective of the Sustainable Development Goals. However, financial risk protection mechanisms are limited, especially in low-income countries, such as Madagascar. To design effective financial risk protection mechanisms, solid and reliable data on the costs patients incur when seeking care are essential. With this study, we therefore aim to describe medical costs for drugs and consumables for patients as well as model the likelihood of catastrophic health expenditure at fifteen health facilities in Southern Madagascar., Methods: We conducted a costing analysis of patient invoices from fifteen health facilities (four primary and eleven secondary facilities) in Southern Madagascar, including public, private, and faith-based facilities. We included invoices from patients accessing care for life-threatening conditions, accidents and injuries, paediatric, or maternity care between February 2021 and July 2022. Costing data were limited to costs for drugs and consumables. We used regional household expenditure data from a representative household survey to calculate the incidence of catastrophic health expenditure in our sample., Results: We analysed data from 9,855 cases, including 4,980 outpatient cases, 3,447 inpatient cases without surgical intervention, and 1,419 surgical cases. The average patient cost for drugs and medical consumables across all cases was USD 39.52 (range: USD 0.13-1,381.18, IQR: USD 9.07-46.91). Average costs for surgical treatment were USD 119.33 (range: USD 8.10-522.88, IQR: USD 73.81-160.49), for inpatient treatment USD 47.07 (range: USD 1.82-1,381.19, IQR: USD 22.38-58.91), and for outpatient treatment USD 11.73 (range: USD 0.15-207.79, IQR USD: 6.00-15.53). On average patients at faith-based facilities paid USD 47.20 (range: USD 0.49-530.33, IQR: 10.74-58.54), USD19.47 (range: USD 0.40-1,381.23, IQR: 6.77-24.07) at private facilities, and USD 34.65 (range: USD 0.58-245.24, IQR: USD 6.08-60.11) at public facilities. Patients requiring surgical care were most likely to experience catastrophic health expenditure and average costs for maternity care were significantly higher than for other patient groups., Conclusions: Financial risk protection schemes in Madagascar, such as the national UHC policy, and the national solidarity fund, as well as interventions by non-governmental and multilateral organisations, need to focus on surgical cases and maternity care to protect vulnerable populations from catastrophic health expenditures for life-threatening conditions, accidents and injuries, and maternity and paediatric care., Competing Interests: The authors have declared that no competing interests exist., (Copyright: © 2024 Franke et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)
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- 2024
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42. Effect of the COVID-19 Lockdown on Mobile Payments for Maternal Health: Regression Discontinuity Analysis.
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Knauss S, Andriamiadana G, Leitheiser R, Rampanjato Z, Bärnighausen T, and Emmrich JV
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- Humans, Female, Adult, Quarantine economics, Young Adult, Adolescent, Communicable Disease Control methods, Communicable Disease Control economics, Maternal Health Services economics, Maternal Health Services statistics & numerical data, Middle Aged, Telemedicine economics, Telemedicine statistics & numerical data, Pandemics, COVID-19 epidemiology, COVID-19 prevention & control, Maternal Health economics, Maternal Health statistics & numerical data
- Abstract
Background: The COVID-19 pandemic resulted in the unprecedented popularity of digital financial services for contactless payments and government cash transfer programs to mitigate the economic effects of the pandemic. The effect of the pandemic on the use of digital financial services for health in low- and middle-income countries, however, is poorly understood., Objective: This study aimed to assess the effect of the first COVID-19 lockdown on the use of a mobile maternal health wallet, with a particular focus on delineating the age-dependent differential effects, and draw conclusions on the effect of lockdown measures on the use of digital health services., Methods: We analyzed 819,840 person-days of health wallet use data from 3416 women who used health care at 25 public sector primary care facilities and 4 hospitals in Antananarivo, Madagascar, between January 1 and August 27, 2020. We collected data on savings, payments, and voucher use at the point of care. To estimate the effects of the first COVID-19 lockdown in Madagascar, we used regression discontinuity analysis around the starting day of the first COVID-19 lockdown on March 23, 2020. We determined the bandwidth using a data-driven method for unbiased bandwidth selection and used modified Poisson regression for binary variables to estimate risk ratios as lockdown effect sizes., Results: We recorded 3719 saving events, 1572 payment events, and 3144 use events of electronic vouchers. The first COVID-19 lockdown in Madagascar reduced mobile money savings by 58.5% (P<.001), payments by 45.8% (P<.001), and voucher use by 49.6% (P<.001). Voucher use recovered to the extrapolated prelockdown counterfactual after 214 days, while savings and payments did not cross the extrapolated prelockdown counterfactual. The recovery duration after the lockdown differed by age group. Women aged >30 years recovered substantially faster, returning to prelockdown rates after 34, 226, and 77 days for savings, payments, and voucher use, respectively. Younger women aged <25 years did not return to baseline values. The results remained robust in sensitivity analyses using ±20 days of the optimal bandwidth., Conclusions: The COVID-19 lockdown greatly reduced the use of mobile money in the health sector, affecting savings, payments, and voucher use. Savings were the most significantly reduced, implying that the lockdown affected women's expectations of future health care use. Declines in payments and voucher use indicated decreased actual health care use caused by the lockdown. These effects are crucial since many maternal and child health care services cannot be delayed, as the potential benefits will be lost or diminished. To mitigate the adverse impacts of lockdowns on maternal health service use, digital health services could be leveraged to provide access to telemedicine and enhance user communication with clear information on available health care access options and adherence to safety protocols., (©Samuel Knauss, Gracia Andriamiadana, Roxane Leitheiser, Zavaniarivo Rampanjato, Till Bärnighausen, Julius Valentin Emmrich. Originally published in JMIR Public Health and Surveillance (https://publichealth.jmir.org), 30.07.2024.)
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- 2024
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43. Digital technologies for health financing in low-income and middle-income countries: a scoping review protocol.
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Pioch C, Struckmann V, Brikci N, De Allegri M, Emmrich JV, Knauss S, Mathauer I, Opoku D, and Quentin W
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- Humans, Review Literature as Topic, Developing Countries, Digital Technology, Healthcare Financing, Universal Health Insurance economics
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Introduction: Universal health coverage (UHC) is a global priority, ensuring equitable access to quality healthcare services without financial hardship. Many countries face challenges in progressing towards UHC. Health financing is pivotal for advancing UHC by raising revenues, enabling risk-sharing through pooling of funds and allocating resources. Digital technologies in the healthcare sector offer promising opportunities for health systems. In low-income and middle-income countries (LMICs), digital technologies for health financing (DTHF) have gained traction, supporting these three main functions of health financing for UHC. As existing information on DTHF in LMICs is limited, our scoping review aims to provide a comprehensive overview of DTHF in LMICs. Our objectives include identifying and describing existing DTHF, exploring evaluation approaches, examining their positive and negative effects, and investigating facilitating factors and barriers to implementation at the national level., Methods and Analysis: Our scoping review follows the six stages proposed by Arksey and O'Malley, further developed by Levac et al and the Joanna Briggs Institute. The reporting adheres to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for Scoping Reviews framework. Eligibility criteria for studies reflect the three core elements of the search: (1) health financing, (2) digital technologies and (3) LMICs. We search multiple databases, including Medline via PubMed, EMBASE via Ovid, the Web of Science Core Collection, CENTRAL via Cochrane and the Global Index Medicus by the WHO. The extracted information is synthesised from both quantitative and qualitative studies., Ethics and Dissemination: As our scoping review is based solely on information gathered from previously published studies, documents and publicly available scientific literature, ethical clearance is not required for its conduct. The findings are presented and discussed in a peer-reviewed article, as well as shared at conferences relevant to the topic., Competing Interests: Competing interests: None declared., (© Author(s) (or their employer(s)) 2024. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.)
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- 2024
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44. Inter-facility transfers for emergency obstetrical and neonatal care in rural Madagascar: a cost-effectiveness analysis.
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Franke MA, Nordmann K, Frühauf A, Ranaivoson RM, Rebaliha M, Rapanjato Z, Bärnighausen T, Muller N, Knauss S, and Emmrich JV
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- Pregnancy, Infant, Newborn, Female, Humans, Cost-Effectiveness Analysis, Madagascar, Cost-Benefit Analysis, Obstetrics, Labor, Obstetric
- Abstract
Context: There is a substantial lack of inter-facility referral systems for emergency obstetrical and neonatal care in rural areas of sub-Saharan Africa. Data on the costs and cost-effectiveness of such systems that reduce preventable maternal and neonatal deaths are scarce., Setting: We aimed to determine the cost-effectiveness of a non-governmental organisation (NGO)-run inter-facility referral system for emergency obstetrical and neonatal care in rural Southern Madagascar by analysing the characteristics of cases referred through the intervention as well as its costs., Design: We used secondary NGO data, drawn from an NGO's monitoring and financial administration database, including medical and financial records., Outcome Measures: We performed a descriptive and a cost-effectiveness analysis, including a one-way deterministic sensitivity analysis., Results: 1172 cases were referred over a period of 4 years. The most common referral reasons were obstructed labour, ineffective labour and eclampsia. In total, 48 neonates were referred through the referral system over the study period. Estimated cost per referral was US$336 and the incremental cost-effectiveness ratio (ICER) was US$70 per additional life-year saved (undiscounted, discounted US$137). The sensitivity analysis showed that the intervention was cost-effective for all scenarios with the lowest ICER at US$99 and the highest ICER at US$205 per additional life-year saved. When extrapolated to the population living in the study area, the investment costs of the programme were US$0.13 per person and annual running costs US$0.06 per person., Conclusions: In our study, the inter-facility referral system was a very cost-effective intervention. Our findings may inform policies, decision-making and implementation strategies for emergency obstetrical and neonatal care referral systems in similar resource-constrained settings., Competing Interests: Competing interests: None declared., (© Author(s) (or their employer(s)) 2024. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.)
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- 2024
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45. Partial herd hoof trimming results in a higher economic net benefit than whole herd hoof trimming in dairy herds.
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Waldbauer M, Spackman E, Barkema HW, Pajor EA, Knauss S, and Orsel K
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- Animals, Cattle, Female, Dairying, Lameness, Animal pathology, Ulcer complications, Cattle Diseases epidemiology, Foot Diseases veterinary, Hoof and Claw surgery, Hoof and Claw pathology
- Abstract
Sole ulcers, a common cause of lameness is the costliest non-infectious foot lesion in dairy cows and one of the most prevalent non-infectious foot lesions in freestall housing systems. Costs associated with sole ulcers are treatment costs, plus increased labor and decreased productivity and fertility. Routine hoof trimming is part of a strategy to manage sole ulcers. However, hoof trimming strategies differ among farms. The two most frequently applied strategies are: 1) partial herd hoof trimming with a 2-month interval between trims; and 2) whole herd hoof trimming at 6-month intervals. A Markov model was developed to investigate whether every 2 months partial herd hoof trimming or whole herd hoof trimming every 6 months was the most cost-effective strategy to avoid costs associated with sole ulcers. In this model, the net benefits for a 100-cow herd and the average productive life span of a dairy cow in intensive dairy systems of 3 years were evaluated. Partial herd hoof trimming was the most cost-effective strategy 100% of the time compared to whole herd hoof trimming, with a difference in 3-year net benefits of US$4,337 (95% CI: US$2,713-US$5,830). Based on sensitivity analyses, variables that were the sources of the biggest uncertainty in the model were herd size, the probability of being trimmed in a partial herd trim, and the prevalence of sole ulcers. To further investigate the impacts of herd size and of probability of being trimmed, various scenario analyses were conducted. With increasing herd size, the difference in net benefits in favor of partial herd hoof trimming increased even more. Scenario analyses about the probability of getting trimmed all indicated that targeted intervention increased the difference in net benefits in favor of partial herd hoof trimming. However, if the selection of cows to be trimmed in a partial herd trim was random, the whole herd hoof trimming strategy became cost-effective. Therefore, targeted selection and early intervention are necessary to decrease costs associated with sole ulcers., Competing Interests: The authors have declared that no competing interests exist., (Copyright: © 2024 Waldbauer et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)
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- 2024
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46. Immune signatures of checkpoint inhibitor-induced autoimmunity-A focus on neurotoxicity.
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Müller-Jensen L, Schulz AR, Mei HE, Mohr R, Ulrich C, Knape P, Frost N, Frischbutter S, Kunkel D, Schinke C, Ginesta Roque L, Maierhof SK, Nickel FT, Heinzerling L, Endres M, Boehmerle W, Huehnchen P, and Knauss S
- Subjects
- Humans, Acute Disease, Autoimmunity, Ligands, Retrospective Studies, Lung Neoplasms, Melanoma
- Abstract
Background: Neurologic immune-related adverse events (irAE-n) are rare but severe toxicities of immune checkpoint inhibitor (ICI) treatment. To overcome diagnostic and therapeutic challenges, a better mechanistic understanding of irAE-n is paramount., Methods: In this observational cohort study, we collected serum and peripheral blood samples from 34 consecutive cancer patients with irAE-n (during acute illness) and 49 cancer control patients without irAE-n (pre- and on-ICI treatment, n = 44 without high-grade irAEs, n = 5 with high-grade nonneurologic irAEs). Patients received either anti-programmed cell death protein (PD)-1 or anti-PD ligand-1 monotherapy or anti-PD-1/anti-cytotoxic T-lymphocyte-associated protein-4 combination therapy. Most common cancers were melanoma, lung cancer, and hepatocellular carcinoma. Peripheral blood immune profiling was performed using 48-marker single-cell mass cytometry and a multiplex cytokine assay., Results: During acute illness, patients with irAE-n presented higher frequencies of cluster of differentiation (CD)8+ effector memory type (EM-)1 and central memory (CM) T cells compared to controls without irAEs. Multiorgan immunotoxicities (neurologic + nonneurologic) were associated with higher CD8+ EM1 T cell counts. While there were no B cell changes in the overall cohort, we detected a marked decrease of IgD- CD11c+ CD21low and IgD- CD24+ CD21high B cells in a subgroup of patients with autoantibody-positive irAE-n. We further identified signatures indicative of enhanced chemotaxis and inflammation in irAE-n patients and discovered C-X-C motif chemokine ligand (CXCL)10 as a promising marker to diagnose high-grade immunotoxicities such as irAE-n., Conclusions: We demonstrate profound and partly subgroup-specific immune cell dysregulation in irAE-n patients, which may guide future biomarker development and targeted treatment approaches., (© The Author(s) 2023. Published by Oxford University Press on behalf of the Society for Neuro-Oncology. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.)
- Published
- 2024
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47. A cross-sectional analysis of the effectiveness of a nutritional support programme for people with tuberculosis in Southern Madagascar using secondary data from a non-governmental organisation.
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Franke MA, Emmrich JV, Ranjaharinony F, Ravololohanitra OG, Andriamasy HE, Knauss S, and Muller N
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- Adult, Child, Humans, Cross-Sectional Studies, Madagascar epidemiology, Nutritional Status, Nutritional Support, Malnutrition epidemiology, Malnutrition therapy, Tuberculosis epidemiology, Tuberculosis therapy, Tuberculosis complications
- Abstract
Background: There is a strong, bi-directional link between tuberculosis (TB) and undernutrition: TB often causes undernutrition, and undernourished people are more likely to contract TB and experience worse outcomes. Globally, several TB nutritional support programmes exist; however, evidence on their effectiveness is limited and contested. This study evaluates the effect of a nutritional support programme implemented for people with TB in the Atsimo-Andrefana region, Madagascar in 2022. Within this programme, undernourished people with TB [with a body mass index (BMI) of < 18.5 kg/m
2 ] receive 0.6 L of vegetable oil and 6.0 kg of a soy-wheat blend per month throughout their TB treatment., Methods: We analysed secondary non-governmental organisation data collected between January and November 2022 in the Atsimo-Andrefana region, Southern Madagascar, including information on an individual's medical conditions (e.g., type of TB, treatment outcomes) and nutritional status measured prior to, during, and after completion of treatment (e.g., height, weight, mid-upper arm circumference). We conducted descriptive analyses of patient baseline characteristics and outcomes to assess the impact of the provided nutritional support on the BMI of people with TB., Results: A total of 1310 people with TB were included in the study [9.9% (130) children under the age of 5, 32.1% (420) children between 5 and 18 years, 58.0% (760) adults]. 55.4% of children under 5, 28.1% of children between ages 5 and 18, and 81.3% of adults were undernourished at treatment initiation. 42.3% (55/130) of children under 5 experienced severe acute malnutrition at treatment uptake. While the average BMI of adults with TB receiving food support increased over time, from 17.1 kg/m2 (interquartile range: 15.8-18.3, range: 10.3-22.5) to 17.9 kg/m2 (interquartile range: 16.6-19.1, range: 11.9-24.1), most adults remained undernourished even after completing TB treatment., Conclusions: The current TB nutritional support programme falls short of sufficiently increasing the BMI of people with TB to overcome malnutrition. There is an urgent need to revise the nutritional support available for people with TB, particularly for children under 5., (© 2024. The Author(s).)- Published
- 2024
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48. Dataset for: Autoantibody profiles in patients with immune checkpoint inhibitor-induced neurological immune-related adverse events.
- Author
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Müller-Jensen L, Knauss S, Ginesta Roque L, Schinke C, Maierhof SK, Bartels F, Finke C, Rentzsch K, Ulrich C, Mohr R, Stenzel W, Endres M, Boehmerle W, and Huehnchen P
- Abstract
The rise of cancer immunotherapy has been a milestone in clinical oncology. Above all, immune checkpoint inhibitor treatment (ICI) with monoclonal antibodies targeting programmed cell death protein 1 (PD-1), programmed cell death-ligand 1 (PD-L1), and cytotoxic T-lymphocyte-associated protein 4 (CTLA-4) has improved survival rates for an increasing number of malignancies. However, despite the clinical benefits, ICI-related autoimmunity has become a significant cause of non-relapse-related morbidity and mortality. Neurological immune-related adverse events (irAE-n) are particularly severe toxicities with a high risk for chronic illness, long-term steroid dependency, and early ICI treatment termination. While the clinical characteristics of irAE-n are well described, little is known about underlying immune mechanisms and potential biomarkers. Recently, high frequencies of neuronal autoantibodies in patients with irAE-n have been reported, however, their clinical relevance is unclear. Here, we present a dataset on neuronal autoantibody profiles in ICI-treated cancer patients with and without irAE-n, which was generated to investigate the potential role of neuronal autoantibodies in ICI-induced autoimmunity. Between September 2017 and January 2022 serum samples of 29 cancer patients with irAE-n post-ICI treatment) and 44 cancer control patients without high-grade immune-related adverse events (irAEs, n = 44 pre- and post-ICI treatment) were collected and tested for a large panel of brain-reactive and neuromuscular autoantibodies using indirect immunofluorescence and immunoblot assays. Prevalence of autoantibodies was compared between the groups and correlated with clinical characteristics such as outcome and irAE-n manifestation. These data represent the first systematic comparison of neuronal autoantibody profiles between ICI-treated cancer patients with and without irAE-n, providing valuable information for both researchers and clinicians. In the future, this dataset may be valuable for meta-analyses on the prevalence of neuronal autoantibodies in cancer patients., (© 2024 The Author(s).)
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- 2024
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49. Design Research to Embed mHealth into a Community-Led Blood Pressure Management System in Uganda: Protocol for a Mixed Methods Study.
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Schwab J, Wachinger J, Munana R, Nabiryo M, Sekitoleko I, Cazier J, Ingenhoff R, Favaretti C, Subramonia Pillai V, Weswa I, Wafula J, Emmrich JV, Bärnighausen T, Knauf F, Knauss S, Nalwadda CK, Sudharsanan N, Kalyesubula R, and McMahon SA
- Abstract
Background: Uncontrolled hypertension is a leading risk factor for cardiovascular diseases. In Uganda, such diseases account for approximately 10% of all deaths, with 1 in 5 adults having hypertension (>90% of the hypertensive cases are uncontrolled). Although basic health care in the country is available free of cost at government facilities, regularly accessing medication to control hypertension is difficult because supply chain challenges impede availability. Clients therefore frequently suspend treatment or buy medication individually at private facilities or pharmacies (incurring significant costs). In recent years, mobile health (mHealth) interventions have shown increasing potential in addressing health system challenges in sub-Saharan Africa, but the acceptability, feasibility, and uptake conditions of mobile money approaches to chronic disease management remain understudied., Objective: This study aims to design and pilot-test a mobile money-based intervention to increase the availability of antihypertensive medication and lower clients' out-of-pocket payments. We will build on existing local approaches and assess the acceptability, feasibility, and uptake of the designed intervention. Furthermore, rather than entering the study setting with a ready-made intervention, this research will place emphasis on gathering applied ethnographic insights early, which can then inform the parameters of the intervention prototype and concurrent trial., Methods: We will conduct a mixed methods study following a human-centered design approach. We will begin by conducting extensive qualitative research with a range of stakeholders (clients; health care providers; religious, cultural, and community leaders; academics; and policy makers at district and national levels) on their perceptions of hypertension management, money-saving systems, and mobile money in the context of health care. Our results will inform the design, iterative adaptation, and implementation of an mHealth-facilitated pooled financing intervention prototype. At study conclusion, the finalized prototype will be evaluated quantitatively via a randomized controlled trial., Results: As of August 2023, qualitative data collection, which started in November 2022, is ongoing, with data analysis of the first qualitative interviews underway to inform platform and implementation design. Recruitment for the quantitative part of this study began in August 2023., Conclusions: Our results aim to inform the ongoing discourse on novel and sustainable pathways to facilitate access to medication for the management of hypertension in resource-constrained settings., Trial Registration: German registry of clinical trials DRKS00030922; https://drks.de/search/en/trial/DRKS00030922., International Registered Report Identifier (irrid): DERR1-10.2196/46614., (©Josephine Schwab, Jonas Wachinger, Richard Munana, Maxencia Nabiryo, Isaac Sekitoleko, Juliette Cazier, Rebecca Ingenhoff, Caterina Favaretti, Vasanthi Subramonia Pillai, Ivan Weswa, John Wafula, Julius Valentin Emmrich, Till Bärnighausen, Felix Knauf, Samuel Knauss, Christine K Nalwadda, Nikkil Sudharsanan, Robert Kalyesubula, Shannon A McMahon. Originally published in JMIR Research Protocols (https://www.researchprotocols.org), 30.11.2023.)
- Published
- 2023
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50. Final-year medical students' perspective: a survey on the use of computed tomography in sepsis.
- Author
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Pohlan J, Hernando MIO, Waschinsky R, Biavati F, Peters H, Knauss S, Steinhagen PR, Rubarth K, Witham D, and Dewey M
- Abstract
Objectives: To determine the perspective of final-year medical students on the use of computed tomography (CT) in patients with sepsis., Methods: A total of 207 questionnaires were distributed to final-year medical students at a large university medical center, and 113 returned questionnaires met the criteria for inclusion in the analysis. Questions referred to sepsis guidelines, CT indications, and the use of contrast agents. Control variables included a level of practical experience as a final-year student (trimester of student's practical year) and previous radiological experience. Statistical hypothesis tests such as the Mann-Whitney U test and chi-square test were performed., Results: The majority of participating students, 85% (n = 91/107), considered a Systemic Organ Failure Assessment (SOFA) score ≥ 2 as a diagnostic criterion for sepsis. The presence of ≥ 2 positive systemic inflammatory response syndrome (SIRS) criteria was considered relevant for diagnosing sepsis by 34% (n = 34/100). Ninety-nine percent (n = 64/65) of the participants who fully agreed with a SOFA score ≥ 2 being relevant for diagnosing sepsis would also use it as an indication for a CT scan. Seventy-six percent (n = 78/103) of the students rated a known severe allergic reaction to contrast agents as an absolute contraindication for its administration. Ninety-five percent (n = 78/82) considered radiation exposure as problematic in CT examinations, especially in repeat CTs., Conclusion: Most final-year medical students were familiar with the sepsis criteria. Still, some referred to outdated diagnostic criteria. Participants saw the ability to plan further patient management based on CT as a major benefit. Most participants were aware of radiation as a risk of CT., Critical Relevance Statement: More detailed knowledge of CT in septic patients should be implemented in the medical curriculum. Retraining of medical students could help increase student confidence potentially improving patient care., Key Points: 1. Whereas the majority of final-year medical students were familiar with sepsis criteria, some referred to outdated diagnostic criteria. 2. Participants saw the ability to plan further patient management based on CT as a major benefit. 3. Most participants were aware of radiation as a risk of CT., (© 2023. The Author(s).)
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- 2023
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