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Aerosols are currently seen as one of the main transmission routes for SARS-CoV-2, but a comprehensive understanding of the processes and appropriate action/adaptation of protection concepts requires the exchange of information across interdisciplinary boundaries. Against this background, the Baden-Württemberg state government launched in October 2020 a multidisciplinary "Expert Group Aerosols" comprising engineers, natural scientists and medical professionals. In its statement, the group has compiled the current state of knowledge in all relevant disciplines in the context of airborne SARS-CoV-2 infection. In addition to the well-known hygiene and social distancing rules, the importance of the correct use of effective masks is emphasized. Furthermore, the necessity for dynamic and correct ventilation is pointed out and illustrated with ventilation intervals and periods for different scenarios as examples. The effectiveness of stationary or mobile cabin air filters as an important component in the protection concept is discussed. The first opinion of the expert group makes it clear that the existing hygiene and social distancing rules offer the best possible protection against SARS-CoV-2 infection only when correctly applied in combination.
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COVID-19 , SARS-CoV-2 , Aerossóis , Alemanha , Humanos , MáscarasRESUMO
BACKGROUND: The corona crisis not only affects professional activities but also teaching and learning at universities. Buzzwords, such as elearning and digitalization suggest the possibility of innovative teaching approaches that are readily available to solve the problems of teaching in the current COVID-19 pandemic. The current conversion to digital teaching is not primarily driven by didactic rationale or institutional strategy but by external circumstances. OBJECTIVE: The aim of the study was to determine the teaching situation at national university ENT clinics and academic teaching hospitals at the start of the virtual corona summer semester in 2020. MATERIAL AND METHODS: A specifically self-designed questionnaire regarding the local situation and conditions as well as nationwide scenarios was sent to all 39 national university ENT clinics and 20 ENT departments at academic teaching hospitals. RESULTS: A total of 31 university hospitals and 10 academic teaching hospitals took part in the survey. There were obvious discrepancies between available resources and effectively available digital teaching and learning contents. Further criticism was expressed regarding the communication with the medical faculty, the digital infrastructure and particularly the frequent lack of collaboration with central support facilities, such as media, didactics and datacenters. CONCLUSION: There are positive examples of successful transformation of classroom teaching to an exclusively virtual summer semester 2020 within the university ENT clinics; however, critical ratings of assistant professors and medical directors regarding the current teaching situation predominated. A time-critical strategic advancement is urgently needed.
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COVID-19 , Universidades , Humanos , Aprendizagem , Pandemias , SARS-CoV-2 , EnsinoRESUMO
Atrioventricular nodal reentrant tachycardia (AVNRT) is the most common type of supraventricular tachycardia. Slow pathway (SP) ablation is the treatment of choice with a high acute success rate and a negligible periprocedural risk. However, long-term outcome data are scarce. The aim of this study was to assess long-term outcome and arrhythmia free survival after SP ablation. In this study, 534 consecutive patients with AVNRT, who underwent SP ablation between 1994 and 1999 were included. During a mean follow-up of 15.5 years, 101 (18.9%) patients died unrelated to the procedure or any arrhythmia. Data were collected by completing a questionnaire and/or contacting patients. Clinical information was obtained from 329 patients (61.6%) who constitute the final study cohort. During the electrophysiological study, sustained 1:1 slow AV nodal pathway conduction was eliminated in all patients. Recurrence of AVNRT was documented in 9 patients (2.7%), among those 7 patients underwent a successful repeat ablation procedure. New-onset atrial fibrillation (AF) was documented in 39 patients (11.9%) during follow-up. Pre-existing arterial hypertension (odds ratio 2.61, 95% CI 1.14-5.97, p = 0.023), age (odds ratio 1.05, 95% CI 1.02-1.09, p = 0.003) and the postinterventional AH interval (odds ratio 1.02, 95% CI 1.00-1.04, p = 0.038) predicted the occurrence of AF. The present long-term observational study after successful SP ablation of AVNRT confirms its clinical value reflected by low recurrence and complication rates. The unexpectedly high incidence of new-onset AF (11.9%) may impact long-term follow-up and requires further clinical attention.
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Fibrilação Atrial/cirurgia , Nó Atrioventricular/cirurgia , Ablação por Cateter/métodos , Taquicardia por Reentrada no Nó Atrioventricular/cirurgia , Adolescente , Adulto , Idoso , Fibrilação Atrial/fisiopatologia , Nó Atrioventricular/fisiopatologia , Criança , Eletrocardiografia , Feminino , Seguimentos , Frequência Cardíaca/fisiologia , Humanos , Masculino , Pessoa de Meia-Idade , Inquéritos e Questionários , Taquicardia por Reentrada no Nó Atrioventricular/fisiopatologia , Fatores de Tempo , Resultado do Tratamento , Adulto JovemRESUMO
BACKGROUND: Endocrine treatment (ET) with an aromatase inhibitor (AI) is the treatment of choice in post-menopausal patients with hormone receptor-positive early breast cancer (EBC). However, adverse events (AEs) often lead to treatment discontinuation. This analysis aimed to identify side-effects that lead to patients failing to persist with letrozole treatment. PATIENTS AND METHODS: Post-menopausal hormone receptor-positive EBC patients starting ET with letrozole were enroled in EvAluate-TM, a non-interventional study. Information regarding treatment compliance and persistence was gathered in months 6 and 12. Persistence was defined as the time from 30 d after the start to the end of treatment. The influence on persistence of musculoskeletal syndrome, menopausal disorder, sleep disorder and other AEs within the first 30 d was analysed using Cox regression analyses. RESULTS: Among 3887 patients analysed, the persistence rate after 12 months was >85%. In all, 568 patients (14.6%) discontinued the treatment, 358 of whom (63.0%) did so only because of side-effects. The main AEs influencing persistence were musculoskeletal symptoms (hazard ratio [HR] 2.55; 95% confidence interval [CI], 1.90-3.42), sleep disorders (HR 1.95; 95% CI, 1.41-2.70) and other AEs (HR 2.03; 95% CI, 1.51-2.73). Menopausal disorder was not associated with non-persistence (HR 1.17; 95% CI, 0.74-1.84). CONCLUSIONS: These results suggest that side-effects of AIs such as musculoskeletal syndrome and sleep disorder lead to ET discontinuation within the first treatment year in significant numbers of EBC patients. Compliance programmes adapted for subgroups that are at risk for early non-persistence might help to ensure the recommended therapy duration. CLINICAL TRIALS NUMBER: CFEM345DDE19.
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Antineoplásicos/efeitos adversos , Inibidores da Aromatase/efeitos adversos , Neoplasias da Mama/tratamento farmacológico , Letrozol/efeitos adversos , Adesão à Medicação , Pós-Menopausa , Idoso , Neoplasias da Mama/patologia , Feminino , Alemanha , Humanos , Pessoa de Meia-Idade , Estudos Prospectivos , Fatores de Risco , Fatores de Tempo , Resultado do TratamentoRESUMO
BACKGROUND: The influence of functional mass lesions on vocal fold oscillation patterns in vocally challenging tasks is not yet understood in detail. MATERIALS UND METHODS: Glissandi on the vowel [a:] from 220 to 440 Hz and 440 to 880 Hz were analyzed in three groups of four professional female singers: without a mass lesion or dysphony (group A), with a functional mass lesion (swellings without a great impact on oscillation patterns during stroboscopy; group B), and with organic dysphony (group C). High-speed digital imaging (HSDI; 20,000 fps), and acoustic and electroglottographic (EGG) signals were used for analysis. Based on the EGG sample entropy, time windows for analysis of register transition phenomena were constructed. The voice signals (glottal area waveform, GAW; acoustic and EGG signals) were perceptually rated in terms of the noticeability of registration events. RESULTS: The absolute sample entropy revealed maxima in fundamental frequency regions where register transitions typically occur. Groups A and B could be distinguished neither by perceptual rating nor based on sample entropy values. In comparison to the other two groups, the absolute sample entropy values of group C were greater in the lower glissando. However, the larger vocal fold oscillatory irregularities were observable for the upper glissando in this group. CONCLUSION: Functional mass lesions do not influence biomechanics adversely in vocally challenging tasks such as register transitions. The use of sample entropy as a criterion for detection of register transitions is promising, but needs further validation.
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Canto , Prega Vocal , Feminino , Glote , Humanos , Laringoscopia , Fonação , Vibração , Prega Vocal/fisiopatologia , Qualidade da VozRESUMO
Background: Patients' compliance and persistence with endocrine treatment has a significant effect on the prognosis in early breast cancer (EBC). The purpose of this analysis was to identify possible reasons for non-persistence, defined as premature cessation of therapy, on the basis of patient and tumor characteristics in individuals receiving adjuvant treatment with letrozole. Patients and methods: The EvAluate-TM study is a prospective, multicenter, noninterventional study in which treatment with the aromatase inhibitor letrozole was evaluated in postmenopausal women with hormone receptor-positive EBC in the early therapy phase. Treatment persistence was evaluated at two pre-specified study visits after 6 and 12 months. As a measure of early therapy persistence the time from the start to the end of treatment (TTEOT) was analyzed. Cox regression analyses were carried out to identify patient characteristics and tumor characteristics predicting TTEOT. Results: Out of the total population of 3941 patients with EBC, 540 (13.7%) events involving treatment cessation unrelated to disease progression were observed. This was due to drug-related toxicity in the majority of cases (73.5%). Persistence rates were 92.2%, 86.9%, and 86.3% after 6, 12, and 15 months, respectively. The main factors influencing premature treatment discontinuation were older age [hazard ratio (HR) 1.02/year], comorbidities (HR 1.06 per comorbidity), low body mass index, and lower tumor grade (HR 0.85 per grade unit). Conclusion: These results support the view that older, multimorbid patients with low tumor grade and low body mass index are at the greatest risk for treatment discontinuation and might benefit from compliance and support programs.
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Neoplasias da Mama/tratamento farmacológico , Letrozol/administração & dosagem , Adesão à Medicação , Idoso , Antineoplásicos/administração & dosagem , Inibidores da Aromatase/administração & dosagem , Neoplasias da Mama/patologia , Neoplasias da Mama/psicologia , Quimioterapia Adjuvante , Feminino , Humanos , Pessoa de Meia-Idade , Pós-Menopausa , Estudos ProspectivosRESUMO
BACKGROUND: Inflammatory bowel disease (IBD) is common in dogs. Despite the known importance of intestinal lymphocytes in its pathogenesis, little is known about the role of peripheral blood lymphocytes (PBLs) in IBD. OBJECTIVES: The aims of this study were (1) comparison of PBLs analyzed by flow cytometry (FCM) in IBD dogs and healthy controls and (2) comparison of PBLs in IBD dogs at the time of diagnosis and in dogs in clinical remission. ANIMALS: Whole blood samples of 19 IBD dogs at the time of diagnosis and blood samples of 6 dogs in clinical remission were collected. Ten healthy dogs served as controls. METHODS: In this prospective observational study, PBLs were analyzed with multicolor FCM by staining with a panel of anticanine and cross-reactive monoclonal antibodies against T- and B-cell differentiation antigens, including CD45, CD3, CD4, CD8α, CD8ß, TCRαß, TCRγδ, CD79αcy, and CD21. RESULTS: The IBD patients' PBLs had significantly decreased percentages of TCRγδ+ T lymphocytes (median: healthy dogs, 3.32; IBD dogs, 0.97; P = 0.03) and CD21+ B cells (median: healthy dogs, 27.61; IBD dogs, 17.26; P = 0.04). There were no significant differences in PBLs between pretreatment and follow-up samples. CONCLUSIONS AND CLINICAL IMPORTANCE: The differences between PBLs in healthy and IBD dogs analyzed by FCM indicate an imbalance of lymphocytes with different immunologic functions and emphasize the potential value of this technique in a larger cohort of dogs. The PBLs did not differ between IBD dogs before treatment and clinically well-controlled dogs after treatment.
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Doenças do Cão/sangue , Imunofenotipagem/veterinária , Doenças Inflamatórias Intestinais/veterinária , Linfócitos/imunologia , Animais , Doenças do Cão/imunologia , Cães , Feminino , Citometria de Fluxo/veterinária , Doenças Inflamatórias Intestinais/sangue , Doenças Inflamatórias Intestinais/imunologia , MasculinoRESUMO
BACKGROUND: Current liver surgery includes complex multi-stage procedures such as portal vein ligation (PVL) followed by extended liver resection, especially in patients with Klatskin tumours. The risk for severe adhesions increases with every procedure. Finally, this complex sequence could fail because of malignant adhesions. Therefore, we proved the hypothesis of reducing malignant adhesions and increasing feasibility of a sequence with three hepato-biliary operations by implantation of a solid barrier. MATERIALS AND METHODS: We operated in male rats (n=40). Our sequence included as 1st operation bile duct ligation mimicking Klatskin III° or IV°, the 2nd operation was a selective portal vein ligation (sPVL) and 3rd procedure was a 70% liver resection. The mechanical barrier (part of a sterile glove) was implanted at the end of the first operation between the upper (median lobe+left lateral lobe [ML+LLL]) and lower (right lobe+caudate lobe [RL+CL]) rat liver lobes. We assessed the degree of adhesions and the feasibility of the 2nd and 3rd operation by using an established adhesion score (Zühlke) and a feasibility score. The severity of the adhesions and the pro-inflammatory cellular response were further evaluated by morphometry of thickness (HE) of the adhesion layer and quantification of infiltrating neutrophils (ASDCL) in the adhesion layer on the liver surface. RESULTS: The planned liver resection as the third procedure was only feasible when a mechanical barrier was placed. Extent of cholestasis or time interval between the operations had no significant impact on adhesions score or feasibility of the whole sequence. CONCLUSION: A sequence of three hepato-biliary operations in a small animal model (rat) is feasible. It should be considered to implant a mechanical barrier in a sequence of more than two surgical interventions in an experimental model in order to assure the feasibility of the final operation.
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Procedimentos Cirúrgicos do Sistema Biliar/métodos , Hepatectomia/métodos , Veia Porta/cirurgia , Implantação de Prótese , Aderências Teciduais/prevenção & controle , Animais , Procedimentos Cirúrgicos do Sistema Biliar/efeitos adversos , Procedimentos Cirúrgicos do Sistema Biliar/instrumentação , Modelos Animais de Doenças , Estudos de Viabilidade , Hepatectomia/efeitos adversos , Hepatectomia/instrumentação , Cuidados Intraoperatórios/métodos , Ligadura/métodos , Fígado/cirurgia , Masculino , Distribuição Aleatória , Ratos , Ratos Endogâmicos Lew , Sensibilidade e Especificidade , Resultado do TratamentoRESUMO
BACKGROUND: Studies on the effectiveness of preventive voice care programs have focused mainly on voice parameters. Psychological parameters, however, have not been investigated in detail so far. OBJECTIVES: The effect of a voice training program for German student teachers on psychological health parameters was investigated in a longitudinal study. METHODS: The sample of 204 student teachers was divided into the intervention group (n = 123), who participated in the voice training program, and the control group (n = 81), who received no voice training. Voice training contained ten 90-min group courses and an individual visit by the voice trainer in a teaching situation with feedback afterwards. Participants were asked to fill out questionnaires (self-efficacy, Short-Form Health Survey, self-consciousness, voice self-concept, work-related behaviour and experience patterns) at the beginning and the end of their student teacher training period. RESULTS: The training program showed significant positive influences on psychological health, voice self-concept (i.e. more positive perception and increased awareness of one's own voice) and work-related coping behaviour in the intervention group. On average, the mental health status of all participants reduced over time, whereas the status in the trained group diminished significantly less than in the control group. Furthermore, the trained student teachers gained abilities to cope with work-related stress better than those without training. CONCLUSION: The training program clearly showed a positive impact on mental health. The results maintain the importance of such a training program not only for voice health, but also for wide-ranging aspects of constitutional health.
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Distúrbios da Voz , Treinamento da Voz , Voz , Humanos , Estudos Longitudinais , Estudantes , Inquéritos e Questionários , Distúrbios da Voz/psicologia , Distúrbios da Voz/terapiaRESUMO
The reactions between metal borohydrides and elemental sulfur are investigated in situ during thermal treatment and are found to be highly exothermic (up to 700 J g(-1)). These reactions are exceptionally rapid, occurring below 200 °C, also resulting in the sudden release of substantial quantities of hydrogen gas. For NaBH4 this hydrogen release is pure, with no detectable levels of H2S or B2H6. The reaction results in the formation of an array of metal-boron-sulfur compounds. These MBH4-S compounds are interesting for possible uses in high energy applications (fuels or explosives), hydrogen generation, and metal-boron-sulfur precursors.
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INTRODUCTION: Multidimensional voice evaluation is considered as gold standard in voice medicine. In this respect, the European Laryngological Society recommended a protocol for standardized evaluation (ELS-Protocol). However, there are only rare data analyzing changes during therapeutical follow-up. MATERIAL AND METHODS: Using this protocol, 276 patients (136 after phonosurgery, 81 after voice therapy and as a control group 59 patients without voice impairment) were evaluated with regard to their vocal capacity before and after voice therapy or phonosurgery, respectively. RESULTS: The parameters of the ELS-protocol showed significant improvement under therapy with respect to DSI, VHI, and RBH-scale. It has been confirmed, that these measurements are suitable for the assessment of dysphonic patients with organic as well as functional voice disorders. However, detailed analysis of all the obtained parameters showed only weak or no correlation between all regarding parameters, which should be expected to provide comparable information, such as perturbation parameters or such parameters, that are derived from the acoustical spectrum. DISCUSSION: Multidimensional evaluation of the voice as recommended by the ELS protocol is independent from the therapeutical approach able to document therapeutical success. The lack of sufficient correlations of values which should provide comparable information shows that an optimization or standardization of measuring instruments, computer hardware and software is necessary.
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Disfonia/terapia , Laringoplastia/métodos , Avaliação de Resultados em Cuidados de Saúde , Treinamento da Voz , Adulto , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Satisfação do Paciente , Espectrografia do Som , Qualidade da VozRESUMO
One ferret (Mustela putorius furo) from Finland and two ferrets from Austria, aged 1-4.5 years and of both genders, were presented with pyogranulomatous subcutaneous inflammation affecting the inguinal, preputial and femoral regions, respectively. Histologically, microorganisms were detected within the lesions. The organisms had a capsule that stained positively by the periodic acid-Schiff reaction. Pseudomonas spp. were cultured from the lesions in two cases. In the third case, electron microscopy revealed a prokaryotic organism surrounded by an electron lucent matrix. 16S rRNA gene sequencing showed highest sequence homology to Pseudomonas luteola in all three cases. In combination with recent reports of pleuropneumonia in ferrets due to P. luteola infection, these cases might indicate a predisposition of ferrets for infection by these bacteria.
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Paniculite/patologia , Paniculite/veterinária , Infecções por Pseudomonas/patologia , Infecções por Pseudomonas/veterinária , Animais , Feminino , Furões , MasculinoRESUMO
BACKGROUND: Incomplete surgical staging is a negative prognostic factor for patients with borderline ovarian tumours (BOT). However, little is known about the prognostic impact of each individual staging procedure. METHODS: Clinical parameters of 950 patients with BOT (confirmed by central reference pathology) treated between 1998 and 2008 at 24 German AGO centres were analysed. In 559 patients with serous BOT and adequate ovarian surgery, further recommended staging procedures (omentectomy, peritoneal biopsies, cytology) were evaluated applying Cox regression models with respect to progression-free survival (PFS). RESULTS: For patients with one missing staging procedure, the hazard ratio (HR) for recurrence was 1.25 (95%-CI 0.66-2.39; P=0.497). This risk increased with each additional procedure skipped reaching statistical significance in case of two (HR 1.95; 95%-CI 1.06-3.58; P=0.031) and three missing steps (HR 2.37; 95%-CI 1.22-4.64; P=0.011). The most crucial procedure was omentectomy which retained a statistically significant impact on PFS in multiple analysis (HR 1.91; 95%-CI 1.15-3.19; P=0.013) adjusting for previously established prognostic factors as FIGO stage, tumour residuals, and fertility preservation. CONCLUSION: Individual surgical staging procedures contribute to the prognosis for patients with serous BOT. In this analysis, recurrence risk increased with each skipped surgical step. This should be considered when re-staging procedures following incomplete primary surgery are discussed.
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Cistadenoma Seroso/diagnóstico , Cistadenoma Seroso/patologia , Procedimentos Cirúrgicos em Ginecologia , Neoplasias Ovarianas/diagnóstico , Neoplasias Ovarianas/patologia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Cistadenoma Seroso/epidemiologia , Cistadenoma Seroso/cirurgia , Feminino , Humanos , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/epidemiologia , Recidiva Local de Neoplasia/patologia , Estadiamento de Neoplasias , Neoplasias Ovarianas/epidemiologia , Neoplasias Ovarianas/cirurgia , Prognóstico , Adulto JovemAssuntos
Amiloidose/diagnóstico , Amiloidose/fisiopatologia , Glote/fisiopatologia , Rouquidão/etiologia , Rouquidão/fisiopatologia , Cadeias lambda de Imunoglobulina/análise , Doenças da Laringe/diagnóstico , Doenças da Laringe/fisiopatologia , Afonia/diagnóstico , Afonia/fisiopatologia , Diagnóstico Diferencial , Humanos , Laringoscopia , Masculino , Pessoa de Meia-Idade , Fonação/fisiologia , Qualidade da Voz/fisiologiaRESUMO
BACKGROUND: Common self-assessment questionnaires on voice diagnostics focus mostly on functionality of the voice and the impact on the quality of life. Personal aspects such as the relationship with one's own voice and its self-perception are for the most part not taken into consideration. OBJECTIVES: In this article a questionnaire for the assessment of the voice self-concept (Fragebogen zur Erfassung des stimmlichen Selbstkonzepts, FESS) is introduced. MATERIALS AND METHODS: Reliability and validity were tested with a sample of 308 student teachers. For external validity, the scales were correlated with standardized questionnaires of vocal, physical, and mental health. The scale reliability was also retested in 94 participants. RESULTS: The principal component analysis confirmed the internal consistency of three subscales on the relationship with one's own voice, the awareness of the use of one's own voice, and the perception of the connection between voice and emotional changes. CONCLUSION: The FESS questionnaire was shown to be a reliable and valid instrument which supplements existing voice questionnaires by self-related aspects of the voice.
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Autoavaliação Diagnóstica , Disfonia/classificação , Disfonia/diagnóstico , Inquéritos e Questionários , Qualidade da Voz , Adulto , Feminino , Humanos , Masculino , Reprodutibilidade dos Testes , Autoimagem , Sensibilidade e EspecificidadeRESUMO
BACKGROUND: Many dogs suffering from inflammatory bowel disease (IBD) are presented to veterinary clinics. These patients are diagnosed based on a history of chronic gastrointestinal signs and biopsy-confirmed histopathologic intestinal inflammation. Intestinal intraepithelial lymphocytes (IEL) are part of the first line of defense in the gastrointestinal immune system. Alterations in IEL subsets may play a role in the pathogenesis of IBD. HYPOTHESIS: The aim of this study was to characterize the phenotypes of IEL in dogs with IBD compared with healthy control dogs. ANIMALS: Intestinal intraepithelial lymphocytes subpopulations of control dogs (n = 5) obtained from endoscopic biopsies (EB) were compared to those obtained from full thickness biopsies (FTB) on the same day. In addition, the phenotypes of IEL from FTB of control dogs (n = 10) were compared with EB of IBD dogs (n = 10). Each participant was scored clinically using the canine inflammatory bowel disease activity index (CIBDAI), and all samples were graded histopathologically. Three-color flow cytometry of isolated IEL was performed using monoclonal antibodies against T- and B-lymphocyte subpopulations. RESULTS: No significant differences in the composition of IEL subpopulations were found in control dogs based on method of biopsy. The IBD dogs had significantly higher CIBDAI and histopathologic scores compared with control dogs and their IEL contained a significantly higher frequency TCRγδ T-cells. CONCLUSIONS AND CLINICAL IMPORTANCE: Endoscopic biopsies provide suitable samples for 3-color flow cytometry when studying canine intestinal IEL and IBD patients show significant changes of major T-cell subsets compared to healthy control dogs.
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Doenças do Cão/imunologia , Doenças Inflamatórias Intestinais/veterinária , Mucosa Intestinal/imunologia , Linfócitos/patologia , Animais , Linfócitos B/patologia , Biópsia/veterinária , Estudos de Casos e Controles , Doenças do Cão/patologia , Cães , Feminino , Citometria de Fluxo/veterinária , Doenças Inflamatórias Intestinais/imunologia , Doenças Inflamatórias Intestinais/patologia , Mucosa Intestinal/citologia , Mucosa Intestinal/patologia , Masculino , Fenótipo , Subpopulações de Linfócitos T/patologia , Linfócitos T/patologiaRESUMO
BACKGROUND: Approximately one-third of all borderline ovarian tumours (BOT) are diagnosed in patients with child-bearing potential. Detailed information regarding their specific characteristics and prognostic factors is limited. METHODS: Clinical parameters of BOT patients treated between 1998 and 2008 in 24 German centres were retrospectively investigated. Central pathology review and prospective follow-up were carried out. Patients <40 versus ≥40 years were analysed separately and then compared regarding clinico-pathological variables and prognosis. RESULTS: A total of 950 BOT patients with a median age of 49.1 (14.1-91.5) years were analysed [280 patients <40 years (29.5%), 670 patients ≥40 years (70.5%)]. Fertility-preserving surgery was carried out in 53.2% (149 of 280) of patients <40 years with preservation of the primarily affected ovary in 32 of these 149 cases (21.5%). Recurrence was significantly more frequent in patients <40 years (19.0% versus 10.1% 5-year recurrence rate, P < 0.001), usually in ovarian tissue, whereas disease-specific overall survival did not differ between the subgroups. In case of recurrent disease, malignant transformation was less frequent in younger than in older patients (12.0% versus 66.7%, P < 0.001), mostly presenting as invasive peritoneal carcinomatosis. Multivariate analysis for patients <40 years identified advanced International Federation of Gynecology and Obstetrics (FIGO) stage and fertility-sparing approach as independent prognostic factors negatively affecting progression-free survival (PFS) while, for patients ≥40 years, higher FIGO stage and incomplete staging was associated with impaired PFS. CONCLUSIONS: Despite favourable survival, young BOT patients with child-bearing potential are at higher risk for disease recurrence. However, relapses usually remain BOT in the preserved ovaries as opposed to older patients being at higher risk for malignant transformation in peritoneal or distant localisation. Therefore, fertility-sparing approach can be justified for younger patients after thorough consultation.
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Fatores Etários , Neoplasias Ovarianas/patologia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Pessoa de Meia-Idade , Neoplasias Ovarianas/tratamento farmacológico , Neoplasias Ovarianas/cirurgia , Estudos Retrospectivos , Resultado do Tratamento , Adulto JovemRESUMO
A captive garter snake (Thamnophis sirtalis) showed marked circumferential thickening of the body wall due to a chronic fibrous to necrotizing inflammatory reaction extending from the serosa to the skin. The lesions were associated with the presence of intra- and extracellular microsporidian organisms. With ultrastructural and molecular analyses the microsporidia were identified as Heterosporis anguillarum. This organism causes a morphologically similar disease in the Japanese eel (Anguilla japonica), but this is the first time it has been identified in an infected reptile.
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Colubridae/microbiologia , Microsporidiose/veterinária , Pleistophora/isolamento & purificação , Animais , Microsporidiose/microbiologia , Microsporidiose/patologiaRESUMO
Introduction: The EvaluateTM study (Evaluation of therapy management and patient compliance in postmenopausal hormone receptor-positive breast cancer patients receiving letrozole treatment) is a prospective, non-interventional study for the assessment of therapy management and compliance in the routine care of postmenopausal women with invasive hormone receptor-positive breast cancer receiving letrozole. The parameters for inclusion in the study are presented and discussed here. Material and Methods: Between January 2008 and December 2009 a total of 5045 patients in 310 study centers were recruited to the EvaluateTM study. Inclusion criteria were hormone receptor-positive breast cancer and adjuvant treatment or metastasis. 373 patients were excluded from the analysis for various reasons. Results: A total of 4420 patients receiving adjuvant treatment and 252 patients with metastasis receiving palliative treatment were included in the study. For 4181 patients receiving adjuvant treatment, treatment with the aromatase inhibitor letrozole commenced immediately after surgery (upfront). Two hundred patients had initially received tamoxifen and started aromatase inhibitor treatment with letrozole at 1-5 years after diagnosis (switch), und 39 patients only commenced letrozole treatment 5-10 years after diagnosis (extended endocrine therapy). Patient and tumor characteristics were within expected ranges, as were comorbidities and concurrent medication. Conclusion: The data from the EvaluateTM study will offer a good overview of therapy management in the routine care of postmenopausal women with hormone receptor-positive breast cancer. Planned analyses will look at therapy compliance and patient satisfaction with how information is conveyed and the contents of the conveyed information.