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1.
Eur J Surg Oncol ; 49(11): 107072, 2023 11.
Artigo em Inglês | MEDLINE | ID: mdl-37722286

RESUMO

INTRODUCTION: Microscopically positive resection margins (R1) are associated with poorer outcomes in patients with colorectal cancer. However, different definitions of R1 margins exist. It is unclear to what extent the definitions used in everyday clinical practice differ within and between nations. This study sought to investigate variations in the definition of R1 margins in colorectal cancer and the importance of margin status in clinical decision-making. MATERIALS AND METHODS: A 14-point survey was developed by members of The European Society of Surgical Oncology (ESSO) Youngs Surgeons and Alumni Club (EYSAC) Research Academy targeting all members of the multidisciplinary team (MDT) treating patients with colorectal cancer. The survey was distributed on social media, in ESSO's monthly newsletter and via national societies. RESULTS: In total, 137 responses were received. Most respondents were from Europe (89.7%), with the majority from Denmark (56.9%). Less than 2/3 of respondents defined R1 margins as the presence of viable cancer cells ≤1 mm of the margin. Only 60% reported that subdivisions of R1 margins (primary tumour vs tumour deposit vs metastatic lymph node) are routinely available. More than 20% of respondents reported that pathology reports are not routinely reviewed at MDT meetings. Less than half of respondents considered margin status in decision-making for type and duration of adjuvant chemotherapy in Stage III colon cancer. CONCLUSION: The definitions and perceived clinical importance of microscopically positive margins in patients with colorectal cancer appear to vary. Adoption of an international dataset for pathology reporting may help to standardise current practices.


Assuntos
Neoplasias do Colo , Oncologia Cirúrgica , Humanos , Margens de Excisão , Inquéritos e Questionários , Europa (Continente) , Estudos Retrospectivos
2.
Chirurgie (Heidelb) ; 93(8): 788-801, 2022 Aug.
Artigo em Alemão | MEDLINE | ID: mdl-34994806

RESUMO

BACKGROUND: Pancreatic cancer is the second most frequent cause of death among all forms of cancer in Germany with more than 19,000 deaths per year. The evaluation of the nationwide clinical cancer register aims to depict the reality of treatment and to improve the quality of treatment in the future by targeted analyses. METHOD: The data from the clinical cancer register of Brandenburg-Berlin for the diagnosis years 2001-2017 were analyzed with respect to the treatment of pancreatic cancer. Data from patients resident in the State of Brandenburg were evaluated with respect to epidemiological and therapeutic parameters. RESULTS: A total of 5418 patients with pancreatic cancer were documented in the register from 2001 to 2017 and 49.6% of the patients were diagnosed as having the Union for International Cancer Control (UICC) stage IV. A pancreas resection was carried out in 26.4% of the cases. In cases of cancer of the head of the pancreas the most frequent procedure was a pylorus-preserving resection with 51.8% and a pancreatectomy was carried out in 9.4%. The R0 resection rate of all pancreatic cancers in the period from 2014 to 2017 was 61.9%. After R0 resection the 5­year survival was 19%. Relevant multivariate survival factors were age, UICC stage and the residual (R) tumor classification. The case numbers per hospital had no influence on the absolute survival of patients operated on in the State of Brandenburg. CONCLUSION: The treatment reality in the State of Brandenburg for patients with pancreatic cancer corresponds to the results of international publications with respect to the key performance indicators investigated. A qualitative internationally comparable treatment of these patients is also possible in nonmetropolitan regions.


Assuntos
Pancreatectomia , Neoplasias Pancreáticas , Humanos , Pâncreas/patologia , Pancreatectomia/métodos , Neoplasias Pancreáticas/epidemiologia , Pancreaticoduodenectomia/métodos , Neoplasias Pancreáticas
3.
BMC Complement Med Ther ; 21(1): 46, 2021 Jan 26.
Artigo em Inglês | MEDLINE | ID: mdl-33499846

RESUMO

BACKGROUND: Physicians who include complementary medicine in their practice are thought to have an understanding of health and disease different from that of colleagues practicing conventional medicine. The aim of this study was to identify and compare the thoughts and concepts concerning infectious childhood diseases (measles, mumps, rubella, chickenpox, pertussis and scarlet fever) of physicians practicing homeopathic, anthroposophic and conventional medicine. METHODS: This qualitative study used semistructured interviews. Participating physicians were either general practitioners or pediatricians. Data collection and analysis were guided by a grounded theory approach. RESULTS: Eighteen physicians were interviewed (6 homeopathic, 6 anthroposophic and 6 conventional). All physicians agreed that while many classic infectious childhood diseases such as measles, mumps and rubella are rarely observed today, other diseases, such as chickenpox and scarlet fever, are still commonly diagnosed. All interviewed physicians vaccinated against childhood diseases. A core concern for physicians practicing conventional medicine was the risk of complications of the diseases. Therefore, it was considered essential for them to advise their patients to strictly follow the vaccination schedule. Homeopathic-oriented physicians viewed acute disease as a biological process necessary to strengthen health, fortify the immune system and increase resistance to chronic disease. They tended to treat infectious childhood diseases with homeopathic remedies and administered available vaccines as part of individual decision-making approaches with parents. For anthroposophic-oriented physicians, infectious childhood diseases were considered a crucial factor in the psychosocial growth of children. They tended to treat these diseases with anthroposophic medicine and underlined the importance of the family's resources. Informing parents about the potential benefits and risks of vaccination was considered important. All physicians agreed that parent-delivered loving care of a sick child could benefit the parent-child relationship. Additionally, all recognized that existing working conditions hindered parents from providing such care for longer durations of time. CONCLUSIONS: The interviewed physicians agreed that vaccines are an important aspect of modern pediatrics. They differed in their approach regarding when and what to vaccinate against. The different conceptual understandings of infectious childhood diseases influenced this decision-making. A survey with a larger sample would be needed to verify these observations.


Assuntos
Doenças Transmissíveis/terapia , Terapias Complementares/psicologia , Homeopatia/psicologia , Médicos/psicologia , Adulto , Medicina Antroposófica , Controle de Doenças Transmissíveis , Doenças Transmissíveis/psicologia , Cultura , Tomada de Decisões , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Padrões de Prática Médica , Pesquisa Qualitativa , Vacinação
4.
Gesundheitswesen ; 80(5): 465-470, 2018 May.
Artigo em Alemão | MEDLINE | ID: mdl-27636361

RESUMO

AIM OF THE STUDY: According to the German social insurance code §20 Sec. 1, statutory health insurance companies can reimburse up to 80% of costs incurred by primary prevention programs in physical activity, nutrition, stress management and drug consumption. Whether and how many general practitioners (GPs) provide their patients with information on such programs as part of their own practice is unknown. In this study, we investigate to which primary prevention programs primary care physicians refer their patients and whether they take into account reimbursability of programs. METHODS: Between November 2010 and February 2011, all GPs with a practice in Berlin (n=1 168) received a questionnaire that assessed if patients were referred to prevention programs and the type of programs they were referred to, if they ensured they are reimbursable and if they themselves offered prevention programs. Descriptive statistics and multivariate logistic regression was used for analysis. RESULTS: Of 474 respondents (response rate: 41%), 67% were female. Of the respondents, 22% offered reimbursable prevention programs and 42% at out-of-pocket expense. Patients were referred to reimbursable programs by 63%. GPs younger than 50 were twice as likely to offer reimbursable programs in their practice compared to those older than 50 (OR=1.7; 95% KI 1.1-2,8; p-value 0.025). CONCLUSION: A successful implementation of the new German prevention law needs awareness among GPs about reimbursable prevention programs, which may be lacking in some groups.


Assuntos
Clínicos Gerais , Padrões de Prática Médica , Prevenção Primária , Berlim , Feminino , Humanos , Inquéritos e Questionários
5.
Artigo em Inglês | MEDLINE | ID: mdl-28295783

RESUMO

The importance of outpatient cancer care services is increasing due to the growing number of patients having or having had cancer. However, little is known about cooperation among physicians in outpatient settings. To understand what inter- and multidisciplinary care means in community settings, we conducted an amplified secondary analysis that combined qualitative interview data with 42 general practitioners (GPs), 21 oncologists and 21 urologists that mainly worked in medical practices in Germany. We compared their perspectives on cooperation relationships in cancer care. Our results indicate that all participants regarded cooperation as a prerequisite for good cancer care. Oncologists and urologists mainly reported cooperating for tumour-specific treatment tasks, while GPs' reasoning for cooperation was more patient-centred. While oncologists and urologists reported experiencing reciprocal communication with other physicians, GPs had to gather the information they needed. GPs seldom reported engaging in formal cooperation structures, while for specialists, participation in formal spaces of cooperation, such as tumour boards, facilitated a more frequent and informal discussion of patients, for instance on the phone. Further research should focus on ways to foster GPs' integration in cancer care and evaluate if this can be reached by incorporating GPs in formal cooperation structures such as tumour boards.


Assuntos
Assistência Ambulatorial , Atitude do Pessoal de Saúde , Comportamento Cooperativo , Clínicos Gerais , Neoplasias/terapia , Oncologistas , Urologistas , Alemanha , Humanos , Comunicação Interdisciplinar , Equipe de Assistência ao Paciente , Pesquisa Qualitativa
7.
Gesundheitswesen ; 77(12): 966-75, 2015 Dec.
Artigo em Alemão | MEDLINE | ID: mdl-26714312

RESUMO

The third and final discussion paper of the German Network of Health Services Research's (DNVF) "Qualitative Methods Working Group" demonstrates methods for the evaluation and quality of qualitative research in health services research. In this paper we discuss approaches described in evaluating qualitative studies, including: an orientation to the general principles of empirical research, an approach-specific course of action, as well as procedures based on the research-process and criteria-oriented approaches. Divided into general and specific aspects to be considered in a qualitative study quality evaluation, the central focus of the discussion paper undertakes an extensive examination of the process and criteria-oriented approaches. The general aspects include the participation of relevant groups in the research process as well as ethical aspects of the research and data protection issues. The more specific aspects in evaluating the quality of qualitative research include considerations about the research interest, research questions, and the selection of data collection methods and types of analyses. The formulated questions are intended to guide reviewers and researchers to evaluate and to develop qualitative research projects appropriately. The intention of this discussion paper is to ensure a transparent research culture, and to reflect on and discuss the methodological and research approach of qualitative studies in health services research. With this paper we aim to initiate a discussion on high quality evaluation of qualitative health services research.


Assuntos
Pesquisa sobre Serviços de Saúde/estatística & dados numéricos , Pesquisa sobre Serviços de Saúde/normas , Guias de Prática Clínica como Assunto , Pesquisa Qualitativa , Projetos de Pesquisa/estatística & dados numéricos , Projetos de Pesquisa/normas , Estudos de Avaliação como Assunto , Alemanha
8.
Artigo em Inglês | MEDLINE | ID: mdl-26136806

RESUMO

Background. The aim of this study was to investigate the nature of the relationships between healers and their clients in Germany. Methods. An interdisciplinary research team performed semistructured interviews with healers and clients and participatory observation of healing sessions. All interviews were digitally recorded, transcribed, and analyzed using content analysis. Results. Fifteen healers and sixteen clients were included. The healer-client relationship was described as a profound and unique experience, which brought forth interpersonal and spiritual connections. The healers were seen as role models for healing to occur and support for being connected spiritually. The clients had to be open-minded and responsible. The importance of the healers' empathy was emphasized. Discussion. The relationship between healer and client can be seen as a triangular connection between client, healer, and a transcendent source which is not the case in typical patient-doctor relationships. The spiritual connection is also said to enhance the empathetic understanding of the healer. The personality and a partner-like attitude of the healer supported the client in giving a more positive meaning to his life, in reconnecting to his spirituality, and in taking responsibility. Future studies should address the role of spirituality in health care and the development of enduring healer-client relationships.

9.
Urologe A ; 53(11): 1600-9, 2014 Nov.
Artigo em Alemão | MEDLINE | ID: mdl-25297489

RESUMO

BACKGROUND: In Germany, many prostate cancer patients use complementary medicine (CM) or have an interest in these treatment approaches; however, the information and consultation situation of cancer patients is insufficient and therefore the Competence Network Complementary Medicine in Oncology (COCON) was launched by the German Cancer Aid Society. One of the projects of the COCON examines the use of CM and the information and counseling needs regarding these topics in various groups of cancer patients. The focus of this article is on the qualitative study reporting selected results for the subgroup of prostate cancer patients. STUDY DESIGN AND STUDY METHODS: A total of 19 semi-structured qualitative interviews with prostate cancer patients were conducted regarding the use of CM as well as their information and consultation needs. RESULTS: It was found that the patients interviewed discussed various issues surrounding nutrition, particularly a healthy diet, the selective use of certain foods and the use of dietary supplements. Additional themes mentioned by interviewees were physical exercise, psychological well-being, mistletoe therapy, homeopathy and traditional Chinese medicine. Patients indicated that they wanted more information and counseling opportunities with regards to CM. They also expressed a desire for more holistic care. CONCLUSION: The results show that prostate cancer patients use a range of CM and have a need for information about CM. Prostate cancer patients are in a special situation because of a regular feedback on the prostate-specific antigen (PSA) value. This should be taken into consideration in consultation with prostate cancer patients regarding CM.


Assuntos
Terapias Complementares/métodos , Promoção da Saúde/métodos , Disseminação de Informação/métodos , Avaliação das Necessidades , Educação de Pacientes como Assunto/métodos , Neoplasias da Próstata/diagnóstico , Neoplasias da Próstata/terapia , Idoso , Alemanha , Humanos , Masculino
11.
Gesundheitswesen ; 74(8-9): 510-5, 2012 Aug.
Artigo em Alemão | MEDLINE | ID: mdl-22941738

RESUMO

In this first part of a 3-part discussion paper the working group "Qualitative Methods" in the German Network of Health Services Research (DNVF) identifies the potentials and opportunities qualitative research methods provide for health services research. Many research questions relevant for health services research require the use of qualitative methods. However, the potential of and need for qualitative research in health services research has not yet received sufficient attention from funding bodies. We discuss the applicability and importance of qualitative research for the field of health services research. We then move on to describe the key characteristics of qualitative research that need to be taken into account in health services research. We discuss characteristics such as open-ended (qualitative) data, interpretation of meanings, the search for contradictions, closeness to everyday life, openness towards change or modification of the research question and processes in the context of health services research. To ensure a high-quality approach in qualitative methods for the health services research, sufficient competency in methods and appropriate settings that account for the peculiarities of qualitative methods need to be developed. These include an appropriate time frame and sufficient and qualified personnel to conduct qualitative research. Qualitative research is not a research paradigm in itself rather it comprises of many different and diverging approaches. The goal of this paper is to show the diversity of qualitative research methods, its importance for health services research, and to open up the discussion on strategies for integrating qualitative methods into health services research.


Assuntos
Estudos de Avaliação como Assunto , Pesquisa sobre Serviços de Saúde/normas , Guias de Prática Clínica como Assunto , Pesquisa Qualitativa , Projetos de Pesquisa/normas , Alemanha
12.
Gesundheitswesen ; 74(8-9): 516-25, 2012 Aug.
Artigo em Alemão | MEDLINE | ID: mdl-22941739

RESUMO

BACKGROUND: This is the second part of a 3-part discussion paper by the working group on "Qualitative Methods" in the German network of health services research (DNVF) that shall contribute to the development of a memorandum concerning qualitative health services research. It aims to depict the different types of qualitative research that are conducted in health services research in Germany. In addition, the authors present a specific set of qualitative data collection and analysis tools to demonstrate the potential of qualitative research for health services research. QUALITATIVE RESEARCH IN HEALTH SERVICES RESEARCH - AN OVERVIEW: To give an overview of the types of qualitative research conducted in German health services research, the abstracts of the 8th German Conference on Health Services Research were filtered to identify qualitative or mixed-methods studies. These were then analysed by looking at the context which was studied, who was studied, the aims of the studies, and what type of methods were used. Those methods that were mentioned most often for data collection and analysis are described in detail. QUALITATIVE RESEARCH AT THE CONFERENCE FOR HEALTH SERVICES RESEARCH 2009: Approximately a fifth of all abstracts (n=74) had a qualitative (n=47) or a mixed-methods approach combining quantitative and qualitative methods (n=27). Research aims included needs assessment (41%), survey development (36%), evaluation (22%), and theorizing (1%). Data collection mostly consisted of one-on-one interviews (n=45) and group discussions (n=29). Qualitative content analysis was named in 35 abstracts, 30 abstracts did not reference their method of analysis. In addition to a quantitative summary of the abstract findings, the diversity of fields addressed by qualitative methods is highlighted. CONCLUSION: Although drawing conclusions on the use of qualitative methods in German health services research from the analysis of conference abstracts is not possible, the overview we present demonstrates the diversity of methods used for data collection and analysis and showed that a few select methods are extensively used. One of the tasks a memorandum of qualitative health services research should accomplish is to highlight underutilized research methods, which may help to develop the potential of qualitative methodology in German health services research.


Assuntos
Estudos de Avaliação como Assunto , Pesquisa sobre Serviços de Saúde/estatística & dados numéricos , Pesquisa sobre Serviços de Saúde/normas , Guias de Prática Clínica como Assunto , Pesquisa Qualitativa , Projetos de Pesquisa/estatística & dados numéricos , Projetos de Pesquisa/normas , Alemanha
13.
Transplant Proc ; 42(5): 1695-8, 2010 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-20620503

RESUMO

In a previous study, we observed a higher incidence of dyslipidemia in pediatric renal recipients compared with liver recipients. In the present study, we measured common carotid artery intima-media thickness (IMT) in 13 pediatric renal recipients, 9 liver recipients, and 26 control individuals with median age of 11.4, 10.8, and 12.0 years, respectively. The patients were studied from 0.2 to 10.8 years after renal transplantation (RTx) or liver transplantation (LTx). An experienced radiologist (T.K.) blinded to the status of the children measured the IMT using a high-resolution B-mode ultrasonography method. In patients who underwent RTx or LTx, serum fasting lipid profile, estimates of renal and liver function, and glucose metabolism were determined. Children undergoing RTx or LTx more often had hypertension compared with the control individuals (P = .004). Before transplantation, dyslipidemia was greater in patients undergoing RTx compared with those undergoing LTx (P < .05). Children who underwent RTx, compared with those who underwent LTx or control individuals, had thicker mean IMT at the 6 sites measured (mean [SD], 0.57 [0.07], 0.51 [0.05], and 0.53 [0.06] mm, respectively; P = .02]. As a result of linear regression in renal recipients, variability of glomerular filtration rate (<60 mL/min/1.73 m(2) vs normal) accounted for 43.3% of variability of the mean of maximal IMT (B = 8.9; SE = 3.1; P = .01). Variability of pre-RTx serum triglyceride concentration (B = 1.6; SE = 0.6; P = .03) and actual triglyceride concentration (B = 10.3; SE = 2.2; P = .002) accounted for 82.2% of variability of maximal IMT. Our findings support previous data on the importance of maintenance of good graft function with sufficient but not overly efficient immunosuppression after transplantation in prevention of future cardiovascular disease.


Assuntos
Transplante de Rim/diagnóstico por imagem , Transplante de Fígado/diagnóstico por imagem , Túnica Íntima/diagnóstico por imagem , Túnica Média/diagnóstico por imagem , Adolescente , Doenças Cardiovasculares/etiologia , Doenças Cardiovasculares/patologia , Criança , Colesterol/sangue , Quimioterapia Combinada , Seguimentos , Taxa de Filtração Glomerular , Humanos , Terapia de Imunossupressão/métodos , Imunossupressores/uso terapêutico , Nefropatias/classificação , Nefropatias/cirurgia , Transplante de Rim/efeitos adversos , Transplante de Rim/imunologia , Transplante de Fígado/efeitos adversos , Transplante de Fígado/imunologia , Complicações Pós-Operatórias/etiologia , Complicações Pós-Operatórias/prevenção & controle , Triglicerídeos/sangue , Túnica Íntima/patologia , Túnica Média/patologia , Ultrassonografia
14.
Aliment Pharmacol Ther ; 31(4): 477-85, 2010 Feb 15.
Artigo em Inglês | MEDLINE | ID: mdl-19912155

RESUMO

BACKGROUND: Congenital chloride diarrhoea in a newborn is a medical emergency, requiring early diagnostics and treatment to prevent severe dehydration and infant mortality. While most of the 250 cases reported arise from Finland, Poland and Arab countries, single cases with this autosomal recessive disorder appear worldwide. Such congenital chloride diarrhoea rarity makes diagnosis difficult. Life-long salt substitution with NaCl and KCl stabilizes fluid, electrolyte and acid-base balance diagnosis. When properly treated, the long-term outcome is favourable. AIM: To summarize data on congenital chloride diarrhoea diagnosis, pathophysiology and treatment, and to provide guidelines for both acute and long-term management of congenital chloride diarrhoea. METHODS: Data are based on MEDLINE search for 'chloride diarrhoea', in addition to clinical experience in the treatment of the largest known series of patients. RESULTS: Treatment of congenital chloride diarrhoea involves (i) life-long salt substitution; (ii) management of acute dehydration and hypokalaemia during gastroenteritis or other infections; and (iii) recognition and treatment of other manifestations of the disease, such as intestinal inflammation, renal impairment and male subfertility. CONCLUSIONS: This review summarizes data on congenital chloride diarrhoea and provides guidelines for treatment. After being a mostly paediatric problem, adult patients constitute a rare challenge for gastroenterologists worldwide.


Assuntos
Antiporters/genética , Cloretos/metabolismo , Colo/metabolismo , Diarreia/congênito , Diarreia/terapia , Adolescente , Adulto , Alcalose/etiologia , Antiporters/metabolismo , Transporte Biológico , Criança , Pré-Escolar , Antiportadores de Cloreto-Bicarbonato , Cloretos/administração & dosagem , Colo/fisiopatologia , Desidratação/etiologia , Desidratação/terapia , Diagnóstico Diferencial , Diarreia/diagnóstico , Diarreia/genética , Feminino , Hidratação/métodos , Humanos , Hipopotassemia/etiologia , Hiponatremia/etiologia , Incidência , Lactente , Recém-Nascido , Infertilidade Masculina/etiologia , Doenças Inflamatórias Intestinais/epidemiologia , Falência Renal Crônica/epidemiologia , Masculino , Mutação , Cooperação do Paciente , Fenótipo , Poli-Hidrâmnios/diagnóstico por imagem , Poli-Hidrâmnios/etiologia , Gravidez , Prognóstico , Transportadores de Sulfato , Resultado do Tratamento , Ultrassonografia
15.
Am J Transplant ; 8(1): 216-21, 2008 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-17973958

RESUMO

A 12-month-old boy and his 16-year-old aunt became acutely ill 6 months apart and were diagnosed to have atypical hemolytic uremic syndrome (aHUS). Genetic analysis revealed heterozygous R1215Q mutation in complement factor H (CFH) in both patients. The same mutation was found in five healthy adult relatives indicating incomplete penetrance of the disease. The patients developed terminal renal failure and experienced reversible neurological symptoms in spite of plasma exchange (PE) therapy. In both cases, liver-kidney transplantation was successfully performed 6 months after the onset of the disease. To minimize complement activation and prevent thrombotic microangiopathy or overt thrombotic events due to the malfunctioning CFH, extensive PE with fresh frozen plasma was performed pre- and perioperatively and anticoagulation was started a few hours after the operation. No circulatory complications appeared and all four grafts started to function immediately. Also, no recurrence or other major clinical setbacks have appeared during the postoperative follow-up (15 and 9 months) and the grafts show excellent function. While more experience is needed, it seems that liver-kidney transplantation combined with pre- and perioperative PE is a rational option in the management of patients with aHUS caused by CFH mutation.


Assuntos
Substituição de Aminoácidos/genética , Fator H do Complemento/genética , Síndrome Hemolítico-Urêmica/genética , Síndrome Hemolítico-Urêmica/cirurgia , Transplante de Rim , Transplante de Fígado , Adolescente , Feminino , Triagem de Portadores Genéticos , Síndrome Hemolítico-Urêmica/terapia , Humanos , Lactente , Masculino , Linhagem , Troca Plasmática
16.
Am J Transplant ; 8(1): 150-7, 2008 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-17973968

RESUMO

Long-term complications related to immunosuppressive medication are an important problem after liver transplantation (OLT). This study was carried out to evaluate the bone health and risk factors for osteoporosis and fractures in 40 pediatric liver transplant recipients. The results of 208 longitudinal bone mineral density (BMD) measurements were analyzed retrospectively. In addition, a dual-energy X-ray absorptiometry was performed to assess the bone mineral content more precisely and to detect subclinical vertebral fractures (VF). The median age of the patients was 14 years and mean postoperative follow-up 7.0 years. The results showed that over half (58%) had lumbar spine (LS) Z-score

Assuntos
Transplante de Fígado/efeitos adversos , Complicações Pós-Operatórias/etiologia , Complicações Pós-Operatórias/fisiopatologia , Adolescente , Adulto , Densidade Óssea/fisiologia , Criança , Pré-Escolar , Estudos Transversais , Feminino , Seguimentos , Fraturas Ósseas/etiologia , Fraturas Ósseas/metabolismo , Fraturas Ósseas/fisiopatologia , Humanos , Lactente , Transplante de Fígado/fisiologia , Estudos Longitudinais , Masculino , Osteoporose/etiologia , Osteoporose/metabolismo , Osteoporose/fisiopatologia , Complicações Pós-Operatórias/metabolismo , Medição de Risco
17.
Kidney Int ; 70(8): 1423-31, 2006 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-16941028

RESUMO

Congenital nephrotic syndrome of the Finnish type (NPHS1) is a rare genetic disease caused by mutations in the NPHS1 gene encoding a major podocyte slit-diaphragm protein, nephrin. Patients with NPHS1 have severe nephrotic syndrome from birth and develop renal fibrosis in early childhood. In this work, we studied the development of glomerular sclerosis in kidneys removed from 4- to 44-month-old NPHS1 patients. The pathological lesions and expression of glomerular cell markers were studied in nephrectomized NPHS1 and control kidneys using light and electron microscopy and immunohistochemistry. An analysis of 1528 glomeruli from 20 patients revealed progressive mesangial sclerosis and capillary obliteration. Although few inflammatory cells were detected in the mesangial area, paraglomerular inflammation and fibrosis was common. The podocytes showed severe ultrastructural changes and hypertrophy with the upregulation of cyclins A and D1. Podocyte proliferation, however, was rare. Apoptosis was hardly detected and the expression of antiapoptotic B-cell lymphoma-2 and proapoptotic p53 were comparable to controls. Moderate amounts of podocytes were secreted into the urine of NPHS1 patients. Shrinkage of the glomerular tuft was common, whereas occlusion of tubular opening or protrusion of the glomerular tuft into subepithelial space or through the Bowman's capsule were not detected. The results indicate that, in NPHS1 kidneys, the damaged podocytes induce progressive mesangial expansion and capillary obliteration. Podocyte depletion, glomerular tuft adhesion, and misdirected filtration, however, seem to play a minor role in the nephron destruction.


Assuntos
Glomérulos Renais/patologia , Síndrome Nefrótica/congênito , Síndrome Nefrótica/patologia , Apoptose , Proliferação de Células , Pré-Escolar , Progressão da Doença , Epitélio/patologia , Mesângio Glomerular/irrigação sanguínea , Mesângio Glomerular/patologia , Humanos , Hipertrofia , Lactente , Glomérulos Renais/irrigação sanguínea , Proteínas de Membrana/genética , Mutação , Síndrome Nefrótica/genética , Podócitos/patologia , Esclerose
18.
Am J Transplant ; 6(6): 1451-8, 2006 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-16686770

RESUMO

Glucocorticoid (GC) dosing is commonly based on body mass or surface area in children, although the drug effects appear to correlate with steroid exposure, rather than dose. We compared the area under the serum concentration-time curve (AUC) of methylprednisolone (MP) with a recombinant cell bioassay measuring serum glucocorticoid bioactivity (GBA), in prediction of side effects in 16 pediatric patients (5.4-18.4 years of age) 2.0-14.9 years after renal transplantation (TX). They received 0.3 mg/kg of MP orally and timed blood samples were drawn up to 8 h postdose. Serum MP concentrations correlated moderately with GBA (r= 0.65, p < 0.0001) with best linear fit at 6 and 8 h (r= 0.72, 0.79, respectively, p < 0.001). MP-AUC(t = 0-8) and GBA(t = 6) were significantly greater in patients who gained excessive weight soon after TX. Change in growth after TX was inversely correlated with MP-AUC (r= 0.73, p < 0.05) and GBA(t = 6) (r= 0.62, p < 0.05). No correlation of MP-AUC or GBA was found with blood glucose or serum lipid concentrations, glomerular filtration rate, bone mineral density or graft histology. In conclusion, GC exposure varies individually and dosing should be adjusted accordingly to control the adverse effects. GBA might provide a complementary tool for monitoring GC exposure but further studies are needed.


Assuntos
Transplante de Rim/fisiologia , Metilprednisolona/uso terapêutico , Aumento de Peso/efeitos dos fármacos , Adolescente , Área Sob a Curva , Criança , Pré-Escolar , Quimioterapia Combinada , Seguimentos , Glucocorticoides/sangue , Glucocorticoides/uso terapêutico , Crescimento/efeitos dos fármacos , Crescimento/fisiologia , Humanos , Imunossupressores/uso terapêutico , Transplante de Rim/imunologia , Metilprednisolona/sangue , Fatores de Tempo
19.
Mol Hum Reprod ; 12(2): 107-11, 2006 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-16421216

RESUMO

Congenital chloride diarrhoea (CLD) is a rare inherited disease caused by mutations in the solute carrier family 26 member 3 (SLC26A3) gene. Disruption of intestinal Cl(-)/HCO(3)(-) exchange causes watery Cl(-) rich diarrhoea from birth, and recently male subfertility was observed as a novel manifestation. Expression of SLC26A3, together with interacting proteins cystic fibrosis transmembrane conductance regulator (CFTR) and Na(+)/H(+) exchanger 3 (NHE3), was studied using immunohistochemistry in the testis (n = 2) and efferent ducts (ED) (n = 1) of patients with CLD (V317del genotype) and in the testis and epididymis (n = 11), seminal vesicle (n = 9) and prostate (n = 4) of the controls. SLC26A3 was immunolocalized in the head of the elongating spermatids (stages III-VI) and CFTR in the elongating spermatids (stages III and IV) and pachytene (stages III-V) and diplotene spermatocytes. In the non-ciliated cells of the ED, apical expression of all three proteins was observed, but only SLC26A3 and CFTR were detected on the luminal border of the apical mitochondria-rich cells (AMRC) of the ductus epididymis and in the epithelium of the seminal vesicle. Only CFTR was present in the epithelium of the prostatic duct. In the patient with CLD, the expression of both SLC26A3 and CFTR was absent in the ED, but testicular expression was identical to that of the controls. These results suggest a primary role for SLC26A3 in male reproduction. Tissue-specific co-expression with CFTR and NHE3 supports diverse functions of SLC26A3 and may have an impact on pathophysiology of male subfertility both in CLD and in cystic fibrosis (CF), as well as spermatoceles.


Assuntos
Antiporters/genética , Regulador de Condutância Transmembrana em Fibrose Cística/genética , Diarreia/genética , Genitália Masculina/metabolismo , Infertilidade Masculina/genética , Trocadores de Sódio-Hidrogênio/genética , Adulto , Idoso , Antiporters/biossíntese , Antiportadores de Cloreto-Bicarbonato , Cloretos/metabolismo , Regulador de Condutância Transmembrana em Fibrose Cística/biossíntese , Diarreia/complicações , Humanos , Infertilidade Masculina/metabolismo , Infertilidade Masculina/patologia , Masculino , Pessoa de Meia-Idade , Trocador 3 de Sódio-Hidrogênio , Trocadores de Sódio-Hidrogênio/biossíntese , Espermatocele/metabolismo , Transportadores de Sulfato
20.
Am J Transplant ; 6(2): 324-30, 2006 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-16426316

RESUMO

The occurrence of scoliosis in children after solid organ transplantation is not known. A total of 196 children, which is 93% of patients surviving kidney, liver and heart transplantation in our country, participated in a cross-sectional survey. All children were screened for rib hump, and those with clinically significant hump (over 6 degrees ) underwent radiographs of the spine. The occurrence of scoliosis was compared to data obtained from a previously published comparison group. Forty-three (21.9%) of the patients had scoliosis greater than 10 degrees , and 21 (10.7%) of them had curves greater than 20 degrees . The RR (95% CI) for scoliosis needing treatment (over 20 degrees ) was 17.0 (6.75-42.7) in the patients as compared with control population. The occurrence of scoliosis was 17.9% of the kidney, 13.6% of the liver and 51.7% of the heart transplant patients (p < 0.001). In a logistic regression model, heart transplantation (OR (95% CI) 7.27 (2.62-20.2)) and growth hormone treatment (3.98 (1.77-8.94)) were most significant risk factors for scoliosis. The risk of scoliosis is increased in patients with solid organ transplantation. Pediatricians treating these patients should be aware of this increased risk to diagnose early curves and to refer these patients to an orthopedic surgeon.


Assuntos
Densidade Óssea , Transplante de Coração/efeitos adversos , Transplante de Rim/efeitos adversos , Transplante de Fígado/efeitos adversos , Escoliose/epidemiologia , Adolescente , Criança , Pré-Escolar , Estudos Transversais , Feminino , Finlândia/epidemiologia , Hormônio do Crescimento Humano/uso terapêutico , Humanos , Lactente , Masculino , Complicações Pós-Operatórias/epidemiologia
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