RESUMO
BACKGROUND: Suicidal ideation is a major concern in clinical practice. Yet, little is known about prevalence rates of suicidal ideation in patients undergoing outpatient psychotherapeutic treatment. Therefore, the aim of the current study is to assess the prevalence of suicidal ideation in a large sample of psychotherapy outpatients in Germany. The data analyzed in this study is taken from the KODAP-project on the coordination of data collection and analysis at German university-based research and training outpatient clinics for psychotherapy. METHODS: A total of N = 10,357 adult outpatients (64.4 % female; age: M(SD) = 35.94 (13.54), range: 18-92 years of age) starting cognitive-behavioral therapy at one of 27 outpatient clinics in Germany were included in the current study. Prevalence of suicidal ideation was assessed with the Suicide Item (Item 9) of the Beck-Depression Inventory II. RESULTS: Suicidal ideation was reported by 36.7 % (n = 3795) of the participants. Borderline Personality Disorder, Posttraumatic Stress Disorder, and recurrent Major Depression were the diagnoses most strongly associated with the presence and severity of suicidal ideation. LIMITATION: Suicide ideation was assessed only with the respective item of the Beck Depression Inventory II. CONCLUSION: Suicidal ideation is very common among adult patients who start psychotherapy in Germany. A well-founded knowledge of risk assessment in suicidal patients and suicide-specific treatment options is therefore highly relevant.
Assuntos
Transtorno Depressivo Maior , Ideação Suicida , Adulto , Humanos , Feminino , Masculino , Pacientes Ambulatoriais , Prevalência , Transtorno Depressivo Maior/epidemiologia , Transtorno Depressivo Maior/terapia , Transtorno Depressivo Maior/diagnóstico , Psicoterapia , Fatores de RiscoRESUMO
OBJECTIVES: Social needs interventions in medical settings aim to mitigate the effects of adverse social circumstances on health outcomes by connecting vulnerable patients with resources. This study examined the relationship between intervention dosage and the success of resource connections using data from a social needs intervention in multiple clinical settings across the US. STUDY DESIGN: The intervention uses a case management approach to connect patients with unmet needs to resources and services in the community. Intervention dosage was conceptualized as the number of contacts between the navigator and the patient, categorized as direct contact (phone vs. in person) and indirect contact (initiated by the navigator vs. patient). Success of the intervention was conceptualized as 'none,' 'partial,' or 'optimal' for each patient, based on the number of social needs the resource connections addressed. METHODS: Administrative data were extracted for 38,404 unique patients who screened positive for unmet resource needs between 2012 and 2017. Owing to the large sample size, statistical corrections were made to reduce type I error. RESULTS: Multinomial logistic regression analyses showed that higher intervention dosage was related to greater success of resource connections, after adjusting for the patient and site characteristics, and the number of needs (odds ratios ranged from 1.62 to 2.89). In-person contact, although received by only 25% of the patients, was associated with the highest probability of optimal success. CONCLUSIONS: This study demonstrates a feasible way to conceptualize an intervention dose for a social needs intervention that uses a case management approach and has implications for how intervention delivery may improve success of resource connections.
Assuntos
Administração de Caso/estatística & dados numéricos , Recursos em Saúde/estatística & dados numéricos , Apoio Social , Adulto , Feminino , Humanos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Telefone , Estados Unidos , Populações VulneráveisRESUMO
BACKGROUND: Laboratory diagnostics are essential for diagnosis, initiation of therapy, and monitoring of patients. Laboratory results that are overlooked or incorrectly interpreted lead to adverse events and endanger patient safety. Clinical decision support systems (CDSSs) may facilitate appropriate interpretation of results and subsequent medical response. OBJECTIVES: The research project on digital laboratory medicine (AMPEL) aims at developing a CDSS based on laboratory diagnostics, which supports practitioners in ensuring the necessary medical consequences. MATERIALS AND METHODS: A literature review of CDSSs describes the current state of research. The research project AMPEL is presented with its objectives, challenges, and first results. Furthermore, the development of a framework and reporting system is illustrated through the clinical example of severe hypokalemia. RESULTS AND CONCLUSION: Through interdisciplinary development and constant optimization, a specific CDSS with high acceptance among clinicians was developed. Initial results in the case of severe hypokalemia show a positive effect on patient care. Thereby, more complex frameworks such as sepsis diagnostics or acute coronary syndrome are implemented. The limited availability of standardized and digital clinical data is challenging. In addition to the application of classic decision trees in CDSS, the use of machine learning offers a promising perspective for future developments.
Assuntos
Sistemas de Apoio a Decisões Clínicas , Segurança do Paciente , Testes Diagnósticos de Rotina , HumanosRESUMO
AIMS: Cardiovascular magnetic resonance (CMR) imaging is an important tool in the assessment of paediatric cardiac disease. Reported reference values of ventricular volumes and masses in the paediatric population are based on small cohorts and several methodologic differences between studies exist. We sought to create steady-state free precession (SSFP) CMR reference values for biventricular volumes and mass by combining data of previously published studies and re-analysing these data in a standardized manner. METHODS AND RESULTS: A total of 141 healthy children (68 boys) from three European centres underwent cine-SSFP CMR imaging. Cardiac structures were manually contoured for end-diastolic and end-systolic phases in the short-axis orientation according to current standardized CMR post-processing guidelines. Volumes and masses were derived from these contours. Age-related reference curves were constructed using the lambda mu sigma method. Median age was 12.7 years (range 0.6-18.5). We report biventricular volumes and masses, unindexed and indexed for body surface area, stratified by age groups. In general, boys had approximately 15% higher biventricular volumes and masses compared with girls. Only in children aged <6 years old no gender differences could be observed. Left ventricle ejection fraction was slightly higher in boys in this study population (median 67% vs. 65%, P = 0.016). Age-related reference curves showed non-linear relations between age and cardiac parameters. CONCLUSION: We report volumetric SSFP CMR imaging reference values for children aged 0-18 years old in a relatively large multi-centre cohort. These references can be used in the follow-up of paediatric cardiac disease and for research purposes.
Assuntos
Ventrículos do Coração , Imageamento por Ressonância Magnética , Adolescente , Criança , Pré-Escolar , Feminino , Ventrículos do Coração/diagnóstico por imagem , Humanos , Lactente , Recém-Nascido , Imagem Cinética por Ressonância Magnética , Masculino , Valores de Referência , Reprodutibilidade dos Testes , Volume Sistólico , Função Ventricular EsquerdaAssuntos
Doenças Autoimunes/tratamento farmacológico , Hemofilia A/tratamento farmacológico , Lenalidomida/uso terapêutico , Autoanticorpos/imunologia , Doenças Autoimunes/complicações , Doenças Autoimunes/patologia , Toxidermias/etiologia , Substituição de Medicamentos , Fator VIII/imunologia , Hemofilia A/complicações , Hemofilia A/patologia , Hemorragia/complicações , Humanos , Imunossupressores/efeitos adversos , Imunossupressores/uso terapêutico , Lenalidomida/efeitos adversos , Masculino , Pessoa de Meia-Idade , Paraplegia/etiologia , Medula Espinal/irrigação sanguíneaRESUMO
The availability of direct-acting antiviral agents for the treatment of hepatitis C virus (HCV) infection has resulted in a profound shift in the approach to the management of this infection. These changes have affected the practice of solid organ transplantation by altering the framework by which patients with end-stage organ disease are managed and receive organ transplants. The high level of safety and efficacy of these medications in patients with chronic HCV infection provides the opportunity to explore their use in the setting of transplanting organs from HCV-viremic patients into non-HCV-viremic recipients. Because these organs are frequently discarded and typically come from younger donors, this approach has the potential to save lives on the solid organ transplant waitlist. Therefore, an urgent need exists for prospective research protocols that study the risk versus benefit of using organs for hepatitis C-infected donors. In response to this rapidly changing practice and the need for scientific study and consensus, the American Society of Transplantation convened a meeting of experts to review current data and develop the framework for the study of using HCV viremic organs in solid organ transplantation.
Assuntos
Hepatite C/transmissão , Transplante de Órgãos , Doadores de Tecidos , Viremia/transmissão , Hepacivirus/fisiologia , Hepatite C/virologia , Humanos , Sociedades Médicas , Viremia/virologiaRESUMO
Chronic hepatitis C virus (HCV) infection is associated with fatigue and depression. Cognitive impairments are also reported in a smaller number of HCV-positive patients. Recent studies linked HCV to low-grade inflammation in brain. Here, we test the hypothesis that chronic HCV is associated with 3T-neuroimaging-derived grey matter volume (GMV) and functional connectivity alterations in a sample of chronic HCV (1b), without severe liver disease. Regional GMV and resting-state fMRI-derived eigenvector centrality (EC) were compared between 19 HCV-positive patients and 23 healthy controls (all females, 50-69 and 52-64 years, respectively), controlling for white matter hyperintensities and age. Standard tests were used to assess fatigue, depression and cognitive performance. Also, liver fibrosis stage and viral load were quantified among patients. In comparison with controls, HCV-positive patients had higher scores in fatigue and depression, and worse alertness scores. The groups performed similarly in other cognitive domains. We report higher EC in a cluster in the right anterior superior parietal lobule in patients, while no differences are found in GMV. Post hoc functional connectivity analysis showed increased connectivity of this cluster with primary and secondary somatosensory cortex, and temporal and occipital lobes in patients. Higher mean EC in the superior parietal cluster, adjusted for mean framewise displacement, was associated with better memory and attention performance, but not with fatigue, depression, viral load or level of liver fibrosis, among patients. These results suggest a compensatory mechanism in chronic hepatitis C and explain equivocal results in the literature about cognitive deficits in infected persons. Further studies should define the relation of these connectivity changes to the brain's inflammatory activity.
Assuntos
Encefalite/diagnóstico por imagem , Encefalite/epidemiologia , Substância Cinzenta/diagnóstico por imagem , Substância Cinzenta/patologia , Hepatite C Crônica/complicações , Idoso , Transtornos Cognitivos/epidemiologia , Depressão/epidemiologia , Encefalite/patologia , Fadiga/epidemiologia , Feminino , Humanos , Cirrose Hepática/patologia , Imageamento por Ressonância Magnética , Pessoa de Meia-Idade , Carga ViralRESUMO
REASONS FOR PERFORMING STUDY: Captive breeding has played a crucial role in the conservation of threatened equid species. Grazing ruminants and rhinoceros in captivity have less abrasion-dominated tooth wear than their free-ranging conspecifics, with potential negative consequences for their health. However, a similar study on wild equids in captivity is missing. OBJECTIVES: The aim was to establish if different tooth wear patterns are exhibited by free-ranging and captive equids. STUDY DESIGN: Cross-sectional study of museum specimens comparing free-ranging and captive equids. METHODS: Dental casts of maxillary cheek teeth of 228 museum specimens (122 from free-ranging and 106 from captive individuals) of 7 wild equid species were analysed using the extended mesowear method. Although teeth showing specific abnormalities were not scored, the presence of focal overgrowths (hooks) of the rostral premolars (106, 206) was recorded. RESULTS: Captive Equus ferus przewalskii, E. grevyi, E. hemionus, E. quagga boehmi and E. zebra hartmannae have less abrasion-dominated tooth wear on their premolars than their free-ranging conspecifics (P<0.001). Fewer differences were exhibited between populations in the molars. No differences were exhibited in the distal cusp of the molars (110, 210) between populations, except in a small sample of E. kiang. Captive equids exhibited more homogeneous wear along the tooth row whereas free-ranging equids exhibited a tooth wear gradient, with more abrasion on premolars than molars. There were more rostral hooks on the premolars (106, 206) in the captive than the free-ranging population (P = 0.02). CONCLUSIONS: Captive equids did experience less abrasion-dominated tooth wear than their free-ranging conspecifics, but the differences in tooth wear were less pronounced than those between captive and free-ranging wild ruminant and rhinoceros species. This indicates that feeding regimes for captive equids deviate less from natural diets than those for captive ruminants and rhinoceros but that factors leading to hook formation, in particular feeding height, should receive special attention. The Summary is available in Chinese - see Supporting information.
Assuntos
Equidae/fisiologia , Desgaste dos Dentes , Animais , Animais Selvagens , Especificidade da EspécieRESUMO
Parvalbumin (PVALB)-expressing fast-spiking interneurons subserve important roles in many brain regions by modulating circuit function and dysfunction of these neurons is strongly implicated in neuropsychiatric disorders including schizophrenia and autism. To facilitate the study of PVALB neuron function we need to be able to identify PVALB neurons in vivo. We have generated a bacterial artificial chromosome (BAC) transgenic mouse line expressing the red fluorophore tdTomato under the control of endogenous regulatory elements of the Pvalb gene locus (JAX # 027395). We show that the tdTomato transgene is faithfully expressed relative to endogenous PVALB expression throughout the brain. Furthermore, targeted patch clamp recordings confirm that the labeled populations in neocortex, striatum, and hippocampus are fast-spiking interneurons based on intrinsic properties. This new transgenic mouse line provides a useful tool to study PVALB neuron function in the normal brain as well as in mouse models of psychiatric disease.
Assuntos
Interneurônios/metabolismo , Interneurônios/fisiologia , Proteínas Luminescentes/genética , Parvalbuminas/metabolismo , Potenciais de Ação , Animais , Encéfalo/metabolismo , Genes Reporter , Proteínas Luminescentes/metabolismo , Camundongos Transgênicos , TransgenesRESUMO
Integration of pharmacists into multidisciplinary transplant patient care has advanced in recent years, with limited data available to evaluate the current status of the profession. This was a national survey developed as an AST Pharmacy COP initiative. Responses were solicited from pharmacists practicing at U.S. transplant programs based on UNOS listing; 176 participants from 113 centers (41%) responded, with 79% practicing ≤10 years. There is a median of 1.4 pharmacist full-time equivalents (FTEs) (range 0.1-7.1) for every 100 transplants. The predominant activities performed by pharmacists during the transplant phase include medication review (95%), lab review (92%), allergy review (88%), medication therapy management (92%), bedside rounds (87%), medication education (79%), documentation (71%), and coordinating discharge medications (58%). Similar activities were reported during the other phases, but participation was less common. The involvement of dedicated transplant pharmacists within multidisciplinary care has become standard at a large number of centers, although expansion is still needed to ensure core pharmaceutical care components are provided to all transplant recipients across all centers. These results inform on the typical responsibilities of pharmacists practicing within the field of transplantation and illustrate that the level of pharmacist involvement significantly varies across transplant centers and the phases of transplantation.
Assuntos
Transplante de Órgãos , Assistência Farmacêutica , Farmacêuticos/provisão & distribuição , Pesquisas sobre Atenção à Saúde , Humanos , Assistência Perioperatória , Assistência Farmacêutica/organização & administração , Papel Profissional , Estados Unidos , Recursos HumanosRESUMO
Higher levels of fibrinogen or cholesterol were associated with improved hearing recovery in SSHL patients after treatment with HELP-apheresis (Heparin-induced extracorporeal LDL precipitation apheresis). The present trial was performed to demonstrate HELP-related effects on relevant metabolic and inflammatory parameters in the context of SSHL treatment. In the framework of a single arm non-controlled trial, we investigated the variation of metabolic and inflammatory parameters using HELP-apheresis for a defined group of 100 patients with SSHL. Based on cut off inclusion criteria (Serum LDL-cholesterol >1.6 g/l and/or fibrinogen >2.0 g/l, SSHL in minimum three frequencies more than 30 dB, time after event not longer than 6 days), the protocol followed a strict time line with one single shot HELP-apheresis and follow-up monitoring including laboratory parameters at six defined time points. If HELP-apheresis could not effect improvement of hearing on day 5, additional corticosteroid treatment was applied. Concentration of anti-inflammatory IL-10 increased while other proinflammatory parameters declined. Serum levels of all measured sterols and apolipoproteins decreased significantly. None of the investigated parameters were suitable to predict hearing improvement of the patients. Levels of fibrinogen and LDL-cholesterol were not prognostic for outcome after HELP-apheresis. A significant (p < 0.001) increase of anti-inflammatory IL-10 after apheresis was notable, while most of the proinflammatory parameters declined. Despite the limited validity of a single arm non-controlled trial, these alterations on immune modulating factors indicate possible secondary pleiotropic effects caused by HELP-apheresis.
Assuntos
Remoção de Componentes Sanguíneos/métodos , Fibrinogênio/análise , Perda Auditiva Neurossensorial/terapia , Perda Auditiva Súbita/terapia , Adulto , Idoso , Idoso de 80 Anos ou mais , Anticoagulantes/uso terapêutico , LDL-Colesterol/sangue , Circulação Extracorpórea , Feminino , Heparina/uso terapêutico , Humanos , Interleucina-10/sangue , Masculino , Pessoa de Meia-Idade , Prognóstico , Estudos Prospectivos , Adulto JovemRESUMO
Cardiovascular diseases are the main cause of mortality for patients with advanced age. Changes in lipid metabolism are common and play an important role as key risk factors. This article explains an approach in the diagnostics of dyslipidemia according to the current guidelines. First, the overall risk evaluation of cardiovascular mortality based on the current chart has to be evaluated. Depending on these results an individual LDL-C goal should be defined. The article also includes other relevant cardiovascular risk factors which were not included in the established risk charts. Furthermore, the main innovative biomarkers are discussed in their possible applications and diagnostic value.
Assuntos
Cardiologia/normas , Doenças Cardiovasculares/diagnóstico , Doenças Cardiovasculares/etiologia , Dislipidemias/complicações , Dislipidemias/diagnóstico , Guias de Prática Clínica como Assunto , Doenças Cardiovasculares/prevenção & controle , Dislipidemias/prevenção & controle , Alemanha , HumanosRESUMO
INTRODUCTION: The purpose of this study was to evaluate the results of a contoured focal articular femoral condyle resurfacing prosthetic in the treatment of full-thickness cartilage and osteochondral defects at the medial femoral condyle of the knee beyond 5 years. METHODS: In a multicenter case series, preoperative and follow-up scores of the Knee Injury and Osteoarthritis Outcome Score (KOOS), SF-36 and Tegner activity scale were evaluated. Standard radiographs were performed to evaluate the progression of osteoarthritis. Patients were also asked to report their satisfaction. RESULTS: A total of 21 patients were included in this study. The average follow-up was 5.3 years. The average age at the time of resurfacing was 54 years. Average KOOS scores significantly (P ≤ 0.005) improved for pain (51.1 to 77.6), symptoms (57.9 to 79.5), activities of daily living (ADL) (58.8 to 82.4), sports (26.3 to 57.8) and quality of life (QOL) (34.4 to 55.0). The Tegner activity level improved significantly (P ≤ 0.02) from 2.9 to 4. The physical health value of the SF-36 increased by 15.2 to 46.9 compared to the preoperative value. The mental health value almost (51.2) remained unchanged. As many as 16/21 of the patients in this series were satisfied with their outcome and would have the operation again. Radiographic results demonstrated solid fixation, preservation of joint space and no change in the osteoarthritic stage. CONCLUSIONS: The device appears to be an effective reconstructive treatment option for large full-thickness cartilage and osteochondral lesions of the knee in middle-aged patients.
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Artroplastia do Joelho/instrumentação , Cartilagem/lesões , Traumatismos do Joelho/cirurgia , Prótese do Joelho , Adulto , Artroplastia do Joelho/métodos , Cartilagem/diagnóstico por imagem , Cartilagem/fisiopatologia , Feminino , Seguimentos , Humanos , Traumatismos do Joelho/diagnóstico por imagem , Traumatismos do Joelho/fisiopatologia , Masculino , Pessoa de Meia-Idade , Osteoartrite do Joelho/diagnóstico por imagem , Osteoartrite do Joelho/etiologia , Medição da Dor , Satisfação do Paciente , Qualidade de Vida , Radiografia , Inquéritos e Questionários , Resultado do TratamentoRESUMO
Transplant pharmacists have been recognized as an essential part of the transplant team by their colleagues along with several governing and professional organizations. The specific education, training and responsibilities of the transplant pharmacist have not been clearly delineated in the literature. Various pharmacists across the country have been called upon to serve on the transplant team necessitating standardization of their fundamental and desirable activities. Therefore, the purpose of this manuscript is to describe the training and role of a transplant pharmacist on the patient care team and provide a roadmap to implementation of novel transplant pharmacy services.
Assuntos
Transplante de Órgãos , Equipe de Assistência ao Paciente , Farmacêuticos , Papel Profissional , HumanosRESUMO
OBJECTIVE: To determine the short-term antidepressant efficacy and tolerability of duloxetine and venlafaxine vs. each other, placebo, selective serotonin reuptake inhibitors (SSRIs), and tri- and tetracyclic antidepressants (TCAs) in adults with major depression. METHOD: Meta-analysis of randomised controlled trials identified through bibliographical databases and other sources, including unpublished manufacturer reports. RESULTS: Fifty-four studies including venlafaxine arms (n = 12,816), 14 including duloxetine arms (n = 4,528), and two direct comparisons (n = 836) were analysed. Twenty-three studies were previously unpublished. In the meta-analysis, both duloxetine and venlafaxine showed superior efficacy (higher remission and response rates) and inferior tolerability (higher discontinuation rates due to adverse events) to placebo. Venlafaxine had superior efficacy in response rates but inferior tolerability to SSRIs (OR = 1.20, 95% CI 1.07-1.35 and 1.38, 95% CI 1.15-1.66, respectively), and no differences in efficacy and tolerability to TCAs. Duloxetine did not show any advantages over other antidepressants and was less well tolerated than SSRIs and venlafaxine (OR = 1.53, 95% CI 1.10-2.13 and OR 1.79, 95% CI 1.16-2.78, respectively). CONCLUSION: Rather than being a first-line option, venlafaxine appears to be a valid alternative in patients who do not tolerate or respond to SSRIs or TCAs. Duloxetine does not seem to be indicated as a first-line treatment.
Assuntos
Antidepressivos Tricíclicos , Cicloexanóis , Transtorno Depressivo Maior/tratamento farmacológico , Tiofenos , Adulto , Antidepressivos de Segunda Geração/farmacocinética , Antidepressivos de Segunda Geração/uso terapêutico , Antidepressivos Tricíclicos/farmacocinética , Antidepressivos Tricíclicos/uso terapêutico , Cicloexanóis/farmacocinética , Cicloexanóis/uso terapêutico , Relação Dose-Resposta a Droga , Resistência a Medicamentos , Cloridrato de Duloxetina , Humanos , Fenômenos Farmacológicos , Ensaios Clínicos Controlados Aleatórios como Assunto , Indução de Remissão , Equivalência Terapêutica , Tiofenos/farmacocinética , Tiofenos/uso terapêutico , Resultado do Tratamento , Cloridrato de VenlafaxinaRESUMO
BACKGROUND: Little is known about salivary alpha-amylase expression in primates. METHODS: We compared saliva of gelada and hamadryas baboons, chimpanzees and humans using SDS-PAGE and immunoblotting. RESULTS AND CONCLUSIONS: Amylase expression was increased in hamadryas baboons (P = 0.0376) compared to humans and might indicate dietary starch use in Cercopithecines.
Assuntos
Papio hamadryas/metabolismo , alfa-Amilases Salivares/metabolismo , Theropithecus/metabolismo , Animais , Feminino , Humanos , Masculino , Pan troglodytes/metabolismoRESUMO
Besides carbonic anhydrase VI (CA-VI), CA-II is suggested to be a second secreted isoenzyme in ruminant saliva. Therefore, the aim of the present study was to investigate the expression of salivary CA-II in bovine parotid glands at the protein level. Moreover, we intended to identify the cells which secrete the enzyme into the saliva. Two commercially available CA-II specific antibodies were tested for use in immunohistochemistry on frozen sections of bovine parotid tissue. Intense positive staining for CA-II was found in luminal duct cells and for the first time also inside the duct lumen, clearly demonstrating the expression and secretion of salivary CA-II in bovine parotid glands. The presence of CA-II protein was verified for parotid tissue and whole saliva using immunoblot analysis. Both salivary CA-II and CA-VI are highly active in supplying the alimentary tract with bicarbonate. It is suggested that a decrease in the expression of either one of these enzymes might severely disturb digestion and/or increase susceptibility to acidosis in ruminants.
Assuntos
Anidrase Carbônica II/metabolismo , Glândula Parótida/metabolismo , Saliva/metabolismo , Animais , Western Blotting , Bovinos , Imuno-Histoquímica , Glândula Parótida/enzimologia , Saliva/enzimologiaRESUMO
OBJECTIVE: To study the dexamethasone (DXM) concentration at different time points in various compartments of the canine eye following topical application of DXM-21-isonicotinate and oxytetracycline hydrochloride ANIMALS STUDIED: Thirty dogs to be euthanized for reasons not related to this study were selected and their ocular health status evaluated. Selected animals were treated with DXM-oxytetracycline ointment and euthanized after 6, 11 or 16 h. PROCEDURE: The concentration of DXM was determined in the following compartments of the eye: third eyelid, cornea, aqueous humor, iris, lens, vitreous body and choroid/retina. The DXM concentration in the eye was measured by radioimmunoassay. The applied amount of DXM was 0.04 mg in 0.2 mL ointment. Dogs were treated once with Corti Biciron eye ointment (DXM-21-isonicotinate and oxytetracycline hydrochloride, S & K Pharma, Perl, Germany) and were euthanized 6, 11 and 16 h after treatment. RESULTS: At 6 h following topical application the mean DXM concentration was highest in the anterior structures of the eye (third eyelid: 18 ng/g, cornea: 36 ng/g). The concentration in the posterior structures was below detection level. A decreased DXM concentration in the anterior structures was measured 11 and 16 h after treatment. CONCLUSION: It could be demonstrated that therapeutically relevant concentrations of DXM after a single topical administration are only achieved in anterior structures of the eye. A dosing interval of 6-11 h is recommended to achieve therapeutic drug concentration in those structures. The posterior structures of the eye are not reached by topical administration.
Assuntos
Segmento Anterior do Olho/metabolismo , Dexametasona/farmacocinética , Cães/metabolismo , Oxitetraciclina/farmacocinética , Administração Tópica , Adsorção , Animais , Segmento Anterior do Olho/química , Humor Aquoso/química , Humor Aquoso/metabolismo , Corioide/química , Corioide/metabolismo , Córnea/química , Córnea/metabolismo , Iris/química , Iris/metabolismo , Cristalino/química , Cristalino/metabolismo , Membrana Nictitante/química , Membrana Nictitante/metabolismo , Radioimunoensaio/veterinária , Retina/química , Retina/metabolismo , Distribuição Tecidual , Corpo Vítreo/química , Corpo Vítreo/metabolismoRESUMO
Alpha-1-antitrypsin deficiency (AAT) is the most common inherited metabolic disease leading to liver transplantation (LT) in children and adults. The aim of the study was to determine transplantation trends and survival of LT recipients with AAT. Using the UNOS (United Network for Organ Sharing) database, we identified 567 patients who underwent LT and 3 who received lung and LT from 1995 to 2004. AAT accounted for 1.06% of all adult LTs and 3.51% for pediatric LT. The 1-, 3-, and 5-year patient survival was 89%, 85%, and 83%, respectively, for adults versus 92%, 90%, and 90% for pediatric patients (P = .04), and graft survival was 83%, 79%, and 77% for adults versus 84%, 81%, and 78% for pediatric patients (P = .51). By regression analysis, age was the only predictor for patient survival (P = .04). In conclusion, adult and pediatric LT recipients with AAT are predominantly of Caucasian ethnicity and have an excellent post-LT survival.