Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 91
Filtrar
1.
Support Care Cancer ; 29(12): 7715-7724, 2021 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-34159428

RESUMO

Patient-reported outcome measures obtained via E-Health tools ease the assessment burden and encourage patient participation in cancer care (PaCC Study) BACKGROUND: E-health based patient-reported outcome measures (PROMs) have the potential to automate early identification of both nutrition status and distress status in cancer patients while facilitating treatment and encouraging patient participation. This cross-sectional study assessed the acceptability, accuracy, and clinical utility of PROMs collected via E-Health tools among patients undergoing treatment for stomach, colorectal, and pancreatic tumors. RESULTS: Eight-nine percent mostly, or completely, agreed that PROMs via tablets should be integrated in routine clinical care. Men were significantly more likely to require help completing the questionnaires than women (inv.OR= 0.51, 95% CI=(0.27, 0.95), p = 0.035). The level of help needed increased by 3% with each 1-year increase in age (inv. OR=1.03, 95% CI=(1.01, 1.06), p = 0.013). On average, a patient tended to declare weight which was 0.84 kg inferior to their true weight (Bland and Altman 95 % CI=(-3.9, 5.6); SD: 2.41) and a height which was 0.95 cm superior to their true height (Bland and Altman 95 % CI=(-5, 3.1); SD 2.08). Patient-reported nutrition status was significantly associated with the professionally generated assessment (95% CI=(2.27, 4.15), p < 0.001). As nutrition status declined, the distress score increased (95%CI=(0.88, 1.68), p < 0.001). Of the patients, 48.8% who were both distressed and malnourished requested supportive care to address their problems. CONCLUSION: Patient-reported assessments utilizing E-health tools are an accurate and efficient method to encourage patient participation in cancer care while simultaneously ensuring that regular assessment of psycho-social and nutritional aspects of care are efficiently integrated in the daily clinical routine.


Assuntos
Desnutrição , Neoplasias , Telemedicina , Estudos Transversais , Feminino , Humanos , Masculino , Neoplasias/terapia , Avaliação Nutricional , Estado Nutricional , Participação do Paciente , Medidas de Resultados Relatados pelo Paciente
3.
Laryngorhinootologie ; 96(8): 514-518, 2017 Aug.
Artigo em Alemão | MEDLINE | ID: mdl-28850991

RESUMO

Substantial international differences in the prevalence of cancer disease suppose that nutrition may be an important factor in the development of cancer. Many experts believe, that nutritional factors may contribute up to 35 % to the development of malignant tumors. Many patients have lost substantial body weight already at the time of the diagnosis of the disease as consequence of undernutrition and malnutrition, respectively. During the course of the disease the nutritional status often is deteriorating further. Caused by both the cancer disease itself and the treatment, loss of appetite, changes in taste, nausea and vomiting may additionally contribute to undernutrition. Undernutrition is a relevant factor for the outcome of the disease and for the tolerance of the treatment as well. Therefore, supporting the heavily impaired patients in nutritional intake is of paramount importance and an urgent task for physicians and nurses. In view of physiology, pathophysiology, genetics and molecular biology, metabolic processes in cancer are highly complex regulated and there is increasing evidence that a diet rich in fat and protein is favourable. This, however, implies a paradigma shift away from the "healthy" balanced diet rich in fruit, vegetable and complex carbohydrates. So far, the evidence based data of this new concept is, however, a controversial issue.


Assuntos
Alimentos/efeitos adversos , Neoplasias/etiologia , Distúrbios Nutricionais/complicações , Adulto , Idoso , Idoso de 80 Anos ou mais , Causas de Morte , Comparação Transcultural , Estudos Transversais , Epigênese Genética/genética , Comportamento Alimentar , Feminino , Humanos , Estilo de Vida , Masculino , Neoplasias/genética , Neoplasias/mortalidade , Distúrbios Nutricionais/genética , Distúrbios Nutricionais/mortalidade , Necessidades Nutricionais , Valor Nutritivo , Fatores de Risco , Análise de Sobrevida
4.
Clin Nutr ; 36(1): 49-64, 2017 02.
Artigo em Inglês | MEDLINE | ID: mdl-27642056

RESUMO

BACKGROUND: A lack of agreement on definitions and terminology used for nutrition-related concepts and procedures limits the development of clinical nutrition practice and research. OBJECTIVE: This initiative aimed to reach a consensus for terminology for core nutritional concepts and procedures. METHODS: The European Society of Clinical Nutrition and Metabolism (ESPEN) appointed a consensus group of clinical scientists to perform a modified Delphi process that encompassed e-mail communication, face-to-face meetings, in-group ballots and an electronic ESPEN membership Delphi round. RESULTS: Five key areas related to clinical nutrition were identified: concepts; procedures; organisation; delivery; and products. One core concept of clinical nutrition is malnutrition/undernutrition, which includes disease-related malnutrition (DRM) with (eq. cachexia) and without inflammation, and malnutrition/undernutrition without disease, e.g. hunger-related malnutrition. Over-nutrition (overweight and obesity) is another core concept. Sarcopenia and frailty were agreed to be separate conditions often associated with malnutrition. Examples of nutritional procedures identified include screening for subjects at nutritional risk followed by a complete nutritional assessment. Hospital and care facility catering are the basic organizational forms for providing nutrition. Oral nutritional supplementation is the preferred way of nutrition therapy but if inadequate then other forms of medical nutrition therapy, i.e. enteral tube feeding and parenteral (intravenous) nutrition, becomes the major way of nutrient delivery. CONCLUSION: An agreement of basic nutritional terminology to be used in clinical practice, research, and the ESPEN guideline developments has been established. This terminology consensus may help to support future global consensus efforts and updates of classification systems such as the International Classification of Disease (ICD). The continuous growth of knowledge in all areas addressed in this statement will provide the foundation for future revisions.


Assuntos
Desnutrição/diagnóstico , Desnutrição/terapia , Política Nutricional , Terminologia como Assunto , Caquexia/complicações , Consenso , Dieta , Nutrição Enteral , Fragilidade/complicações , Humanos , Avaliação Nutricional , Estado Nutricional , Obesidade/complicações , Sobrepeso/complicações , Nutrição Parenteral , Sarcopenia/complicações , Sociedades Científicas
5.
Orthopade ; 42(9): 780-2, 2013 Sep.
Artigo em Alemão | MEDLINE | ID: mdl-23934042

RESUMO

We describe a case of symptomatic calcification of the lateral collateral knee ligament in a 53-year-old female patient. The calcification became extremely painful and increased in size and it was decided to resect the calcification operatively because of pain progression. After operative resection of the deposits the patient is currently free of complaints and relapse-free after 4.5 years. In the literature four cases of calcification of the medial collateral ligament are described which were also successfully treated by operative resection.


Assuntos
Artralgia/etiologia , Artralgia/prevenção & controle , Artroplastia/métodos , Calcinose/complicações , Calcinose/cirurgia , Articulação do Joelho/cirurgia , Ligamento Colateral Médio do Joelho/cirurgia , Artralgia/diagnóstico , Calcinose/diagnóstico , Feminino , Humanos , Articulação do Joelho/diagnóstico por imagem , Articulação do Joelho/patologia , Ligamento Colateral Médio do Joelho/diagnóstico por imagem , Ligamento Colateral Médio do Joelho/patologia , Pessoa de Meia-Idade , Radiografia , Resultado do Tratamento
6.
Ther Umsch ; 69(12): 687-91, 2012 Dec.
Artigo em Alemão | MEDLINE | ID: mdl-23188780

RESUMO

Secondary hypogammaglobulinemia may be a relevant predisposing condition in patients with recurrent bacterial upper airway disease (pneumonia, sinusitis) or first-time opportunistic infection, particularly if additional immunosuppressive factors like underlying hematological disease or immunosuppressive therapy are present. As an example, we present a retired farmer with myeloma, treated Hodgkin-lymphoma and hypogammaglobulinemia suffering from the third episode of Rhodococcus equi pneumonia. Screening for hypogammaglobulinemia is recommended in patients with unexplained recurrent bacterial airway infection or first time opportunistic disease, particularly with micro-organisms controlled by humoral immunity. Screening should include the analysis of total immunoglobulin levels (IgA, IgG and IgM). If results are ambiguous, tetanus toxoid and pneumococcal polysaccharide vaccine should be administered with measurement of specific antibody titer before and one month after vaccination. An adequate antibody response largely excludes a clinically significant humoral immunodeficiency. If hypogammaglobulinemia is present in a patient with recurrent or opportunistic infections, periodical substitution of IVIG in a dose and frequency to prevent further infectious episodes should be initiated. This is usually achieved with an IVIG-dose of 0.4g/kg body weight every 3 - 4 weeks to reach a trough IgG-level of 5 - 7g/L.


Assuntos
Infecções por Actinomycetales/etiologia , Imunodeficiência de Variável Comum/complicações , Doença de Hodgkin/tratamento farmacológico , Imunossupressores/efeitos adversos , Imunossupressores/uso terapêutico , Mieloma Múltiplo/tratamento farmacológico , Neoplasias Primárias Múltiplas/tratamento farmacológico , Infecções Oportunistas/etiologia , Pneumonia Bacteriana/etiologia , Rhodococcus equi , Macroglobulinemia de Waldenstrom/tratamento farmacológico , Infecções por Actinomycetales/diagnóstico , Infecções por Actinomycetales/tratamento farmacológico , Idoso , Antibacterianos/uso terapêutico , Imunodeficiência de Variável Comum/induzido quimicamente , Imunodeficiência de Variável Comum/diagnóstico , Humanos , Imunização Passiva/métodos , Masculino , Infecções Oportunistas/diagnóstico , Infecções Oportunistas/tratamento farmacológico , Pneumonia Bacteriana/diagnóstico , Pneumonia Bacteriana/tratamento farmacológico , Recidiva
7.
Horm Metab Res ; 44(12): 919-26, 2012 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-22638835

RESUMO

The purposes of this study were (i) to determine the prevalence of exercise-associated hyponatremia (EAH) in multi-stage ultra-marathoners and (ii) to gain more insight into fluid and electrolyte regulation during a multi-stage race. Body mass, sodium concentration ([Na⁺]), potassium concentration ([K⁺]), creatinine, urea, specific gravity, and osmolality in urine were measured in 25 male ultra-marathoners in the 'Swiss Jura Marathon' 2008 with 11,000 m gain of altitude over 7 stages covering 350 km, before and after each stage. Haemoglobin, haematocrit, creatinine, urea, [Na⁺], [K⁺], and osmolality were measured in plasma before stage 1 and after stages 1, 3, 5, and 7. Two athletes (8%) showed plasma [Na⁺] <135 mmol/l. Body mass, plasma [Na⁺], and plasma [K⁺] remained unchanged (p>0.05). Urine specific gravity (p<0.001) and osmolality in both plasma (p<0.01) and urine (p<0.001) were increased and haematocrit (p<0.0001), haemoglobin (p<0.0001) and plasma albumin were decreased (p<0.001). Plasma volume (p<0.01) and plasma urea (p<0.001) were increased. The K⁺/Na⁺ ratio in urine increased >1.0 after each stage and returned to <1.0 the morning of the next stage (p<0.001). To summarize, more sodium than potassium was excreted during rest. The increased urinary sodium losses during rest are compatible with the syndrome of inappropriate secretion of antidiuretic hormone (SIADH) or the cerebral salt-wasting syndrome (CSWS). Further studies are needed to determine the antidiuretic hormone (ADH) and both the atrial natriuretic peptide (ANP) and the brain natriuretic peptide (BNP) during multi-stage races.


Assuntos
Hiponatremia/etiologia , Resistência Física , Equilíbrio Hidroeletrolítico , Adulto , Altitude , Atletas , Humanos , Hiperuricemia/sangue , Hiperuricemia/epidemiologia , Hiperuricemia/etiologia , Hiperuricemia/urina , Hiponatremia/epidemiologia , Hiponatremia/metabolismo , Hiponatremia/fisiopatologia , Síndrome de Secreção Inadequada de HAD/etiologia , Masculino , Pessoa de Meia-Idade , Concentração Osmolar , Potássio/sangue , Potássio/urina , Prevalência , Corrida , Índice de Gravidade de Doença , Sódio/sangue , Sódio/urina , Gravidade Específica , Suíça
10.
Praxis (Bern 1994) ; 100(2): 75-83, 2011 Jan 19.
Artigo em Alemão | MEDLINE | ID: mdl-21249633

RESUMO

In the context of forthcoming initiation of Diagnosis Related Groups (DRG) in Switzerland, the objective of the study was to find factors having an impact on the inpatient's length of hospital stay. The study was performed on two general-medical wards of the Kantonsspital Winterthur, where all admitted patients were included in the study over two months. The various periods of diagnostic and therapeutic management of the patients and all diagnostic and therapeutic measures plus the arrangements after hospitalization were recorded. The determinants influencing the length of hospital stay were classified in clinic-internal or -external. 124 inpatients entered the study. 91 (73.4%) had a length of hospital stay without delay, whereas 33 (26.6%) patients had an extended length of hospital stay. The cumulative length of hospital stay of all patients was 1314 days, whereof 216 days (16.4%) were caused by delays. 67 days were caused by clinic-internal (5.1%) and 149 days by clinic-external factors (11.3%). Delays were substantially more generated by clinic-internal than -external factors. Clinic-internal factors were mainly weekends with interruption of the diagnostic and therapeutic procedures, dead times waiting for diagnostic results and waiting times for consultations. Clinic-external factors were caused by delayed transfer in nursing homes or rehabilitation institutions, waiting for family members for the backhaul and by indetermination of the patient. Also factors relating to the patients' characteristics had an influence on the length of hospital stay. Summing up, a substantial part of the length of hospital stay was caused by delays. However, the many different clinic-internal factors complicate solutions to lower the length of hospital stay. Moreover, factors that cannot be influenced such as waiting for microbiological results, contribute to extended length of hospital stay. Early scheduling of post-hospital arrangements may lower length of hospital stay. Moreover, when cantonal restriction falls away in 2012, patients may be transferred to rehabilitation institutions more rapidly. Also the insurance companies may possibly strengthen their organisation and thus may meet the costs more quickly.


Assuntos
Hospitalização , Tempo de Internação , Instituições de Assistência Ambulatorial , Grupos Diagnósticos Relacionados , Humanos , Casas de Saúde
11.
Unfallchirurg ; 111(12): 1033-6, 2008 Dec.
Artigo em Alemão | MEDLINE | ID: mdl-18712334

RESUMO

The rare condition of chronic instability of the proximal tibiofibular joint can be of traumatic or idiopathic origin and can lead to secondary arthritis. After conservative treatment for 6 months and persistent pain, operative treatment should be considered. We present a case of traumatic instability, ligament reconstruction with a part of the biceps femoris tendon, and postoperative return to full and painless sport activities.


Assuntos
Traumatismos em Atletas/cirurgia , Fíbula/lesões , Instabilidade Articular/cirurgia , Traumatismos do Joelho/cirurgia , Esqui/lesões , Transferência Tendinosa/métodos , Tíbia/lesões , Adulto , Traumatismos em Atletas/diagnóstico por imagem , Fíbula/diagnóstico por imagem , Fíbula/cirurgia , Seguimentos , Humanos , Instabilidade Articular/diagnóstico por imagem , Traumatismos do Joelho/diagnóstico por imagem , Masculino , Complicações Pós-Operatórias/diagnóstico por imagem , Radiografia , Tíbia/diagnóstico por imagem , Tíbia/cirurgia
12.
Clin Orthop Relat Res ; 451: 80-6, 2006 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-16691146

RESUMO

A total knee arthroplasty performed with navigation results in more accurate component positioning with fewer outliers. It is not known whether image-based or image-free-systems are preferable and if navigation for only one component leads to equal accuracy in leg alignment than navigation of both components. We evaluated the results of total knee arthroplasties performed with femoral navigation. We studied 90 knees in 88 patients who had conventional total knee arthroplasties, image-based total knee arthroplasties, or total knee arthroplasties with image-free navigation. We compared patients' perioperative times, component alignment accuracy, and short-term outcomes. The total surgical time was longer in the image-based total knee arthroplasty group (109 +/- 7 minutes) compared with the image-free (101 +/- 17 minutes) and conventional total knee arthroplasty groups (87 +/- 20 minutes). The mechanical axis of the leg was within 3 degrees of neutral alignment, although the conventional total knee arthroplasty group showed more (10.6 degrees ) variance than the navigated groups (5.8 degrees and 6.4 degrees , respectively). We found a positive correlation between femoral component malalignment and the total mechanical axis in the conventional group. Our results suggest image-based navigation is not necessary, and image-free femoral navigation may be sufficient for accurate component alignment.


Assuntos
Artroplastia do Joelho/métodos , Osteoartrite do Joelho/cirurgia , Cirurgia Assistida por Computador , Idoso , Idoso de 80 Anos ou mais , Artroplastia do Joelho/economia , Feminino , Fêmur/diagnóstico por imagem , Humanos , Masculino , Pessoa de Meia-Idade , Osteoartrite do Joelho/diagnóstico por imagem , Estudos Prospectivos , Radiografia , Reprodutibilidade dos Testes , Cirurgia Assistida por Computador/economia , Tíbia/diagnóstico por imagem , Fatores de Tempo , Resultado do Tratamento
13.
Ther Umsch ; 62(9): 615-8, 2005 Sep.
Artigo em Alemão | MEDLINE | ID: mdl-16218497

RESUMO

Oxidative stress, in particular oxidative modification of LDL-cholesterol, appears to be of great importance in the pathogenesis of atherosclerosis. Various observational epidemiological studies have suggested that antioxidant vitamin intake is associated with reduced cardiovascular morbidity and mortality. Also, experimental studies in animals have demonstrated that antioxidant vitamins slow the progression of atherosclerosis. However, prospective controlled clinical trials have failed to demonstrate a benefit of antioxidant vitamin supplementation in primary or secondary prevention of cardiovascular disease. Thus, the use of antioxidants and vitamin supplements as a preventive or therapeutic intervention can not be recommended.


Assuntos
Antioxidantes/uso terapêutico , Doenças Cardiovasculares/epidemiologia , Doenças Cardiovasculares/prevenção & controle , Suplementos Nutricionais , Medição de Risco/métodos , Comportamento de Redução do Risco , Vitaminas/uso terapêutico , Dietoterapia/métodos , Alemanha/epidemiologia , Comportamentos Relacionados com a Saúde , Humanos , Guias de Prática Clínica como Assunto , Padrões de Prática Médica , Fatores de Risco
14.
Ther Umsch ; 62(12): 847-51, 2005 Dec.
Artigo em Alemão | MEDLINE | ID: mdl-16405290

RESUMO

The retirement is a good moment in life to mirror one's health behaviour in regard to eating habits and physical activity. Based on the literature we recommend the Mediterranean "diet" in all ages. This diet is characterized by the intake of fresh fruit, vegetables, cereals, olive oil, fish, little meat, legumes, spices and herbs such as basil and garlic. A glass wine a day is legitimate. In increasing age total energy needs are decreasing. Therefore the energy intake has to be adjusted. Caloric restriction per se is a powerful means to reduce cardiovascular morbidity and mortality. However, not only the eating habits but also the entire lifestyle are important factors to influence cardiovascular mortality. Thus, the "low risk factors", i.e. Mediterranean diet, moderate alcohol consumption, physical activity and non-smoking must be controlled to improve health. In the HALE project the control of these factors reduced over-all mortality by 65 percent!


Assuntos
Envelhecimento , Constituição Corporal/fisiologia , Dieta Mediterrânea , Comportamento de Ingestão de Líquido/fisiologia , Comportamento Alimentar/fisiologia , Comportamento de Redução do Risco , Restrição Calórica/métodos , Dietoterapia/métodos , Humanos
15.
Praxis (Bern 1994) ; 93(3): 53-8, 2004 Jan 14.
Artigo em Alemão | MEDLINE | ID: mdl-15032032

RESUMO

There is evidence in the literature that oral nutritional supplements, total enteral and parenteral nutrition can expand life expectancy and improve quality of life in patients suffering from undernutrition. In the present review, we outline whether these treatments regimens are also effective in severely ill patients. Moreover, the usefulness of nutritional interventions in patients sick unto death, e.g. by stroke, cancer or dementia, is broadly discussed. The controversy about terminal dehydration is shortly reviewed.


Assuntos
Cuidados Críticos , Estado Terminal/terapia , Apoio Nutricional/métodos , Assistência Terminal , Cuidados Críticos/métodos , Nutrição Enteral/métodos , Humanos , Nutrição Parenteral Total/métodos , Desnutrição Proteico-Calórica/terapia , Qualidade de Vida , Assistência Terminal/métodos
16.
Dtsch Med Wochenschr ; 127(46): 2441-6, 2002 Nov 15.
Artigo em Alemão | MEDLINE | ID: mdl-12432484

RESUMO

BACKGROUND: Diabetic ketoacidosis (DKA) and hyperosmolar hyperglycemia (HH) remain life-threatening complications of diabetes mellitus. Herein, we evaluated a standardized protocol for the therapy of acute hyperglycemic crises. PATIENTS AND METHODS: Retrospective study of patients treated in a medical intensive care unit for acute and severe hyperglycemia. Therapy was standardized according to internal guidelines effective for all treating physicians. RESULTS: 24 diabetic patients (11 men, 13 women, age 54 +/- 16 years, 11 DKA, 13 HH) were included into this study. All except one patient in the DKA-group had diabetes mellitus type 1. All patients with HH had diabetes mellitus type 2. Patients with DKA were significantly younger and complained more often about nausea and vomiting compared to the HH-group. Infections were the major cause for acute hyperglycemia followed by non-compliance. The arterial pH-value in the DKA-group was lower than in the HH-group (7,07 +/- 0,12 vs. 7,36 +/- 0,05). The length of stay in the intensive care unit was 1,8 +/- 1,2 days in patients with DKA and 2,2 +/- 1,2 days in patients with HH. The length of stay in the hospital was 11,5 +/- 5,9 days in patients with DKA and 18,3 +/- 10,9 days in patients with HH. No patient died during hospitalization. CONCLUSION: This study emphasizes the relevance of standardized written guidelines for the therapy of acute hyperglycemic crises in diabetic patients.


Assuntos
Diabetes Mellitus Tipo 1/complicações , Diabetes Mellitus Tipo 2/complicações , Cetoacidose Diabética/complicações , Hiperglicemia/etiologia , Doença Aguda , Adulto , Fatores Etários , Diabetes Mellitus Tipo 1/sangue , Diabetes Mellitus Tipo 1/fisiopatologia , Diabetes Mellitus Tipo 2/sangue , Diabetes Mellitus Tipo 2/fisiopatologia , Cetoacidose Diabética/sangue , Cetoacidose Diabética/fisiopatologia , Feminino , Humanos , Concentração de Íons de Hidrogênio , Hiperglicemia/epidemiologia , Hiperglicemia/terapia , Infecções/complicações , Unidades de Terapia Intensiva , Tempo de Internação , Masculino , Pessoa de Meia-Idade , Concentração Osmolar , Cooperação do Paciente , Guias de Prática Clínica como Assunto , Estudos Retrospectivos
17.
Am J Kidney Dis ; 38(6): 1199-207, 2001 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-11728951

RESUMO

Chronic metabolic acidosis induces negative nitrogen balance by either increased protein breakdown or decreased protein synthesis. Few data exist regarding effects of acute metabolic acidosis on protein synthesis. We investigated fractional synthesis rates (FSRs) of muscle protein and albumin, plasma concentrations of insulin-like growth factor-I (IGF-I), thyroid-stimulating hormone (TSH), and thyroid hormones (free thyroxin [fT(4)] and triiodothyronine [fT(3)]) in seven healthy human volunteers after a stable controlled metabolic period of 5 days and again 48 hours later after inducing metabolic acidosis by oral ammonium chloride intake (4.2 mmol/kg/d divided in six daily doses). Muscle and albumin FSRs were obtained by the [(2)H(5)ring]phenylalanine flooding technique. Ammonium chloride induced a significant decrease in pH (7.43 +/- 0.02 versus 7.32 +/- 0.04; P < 0.0001) and bicarbonate concentration (24.6 +/- 1.6 versus 16.0 +/- 2.7 mmol/L; P < 0.0001) within 48 hours. Nitrogen balance decreased significantly on the second day of acidosis. The FSR of muscle protein decreased (1.94 +/- 0.25 versus 1.30 +/- 0.39; P < 0.02), whereas the FSR of albumin remained constant. TSH levels increased significantly (1.1 +/- 0.5 versus 1.9 +/- 1.1 mU/L; P = 0.03), whereas IGF-I, fT(4), and fT(3) levels showed no significant change. We conclude that acute metabolic acidosis for 48 hours in humans induces a decrease in muscle protein synthesis, which contributes substantially to a negative nitrogen balance. In contrast to prolonged metabolic acidosis of 7 days, a short period of acidosis in the present study did not downregulate albumin synthesis.


Assuntos
Acidose/metabolismo , Albuminas/biossíntese , Proteínas Musculares/metabolismo , Músculo Esquelético/metabolismo , Acidose/induzido quimicamente , Adulto , Cloreto de Amônio , Biópsia , Feminino , Humanos , Masculino , Músculo Esquelético/patologia , Potássio/urina , Sódio/urina
20.
Intensive Care Med ; 27(5): 925-9, 2001 May.
Artigo em Inglês | MEDLINE | ID: mdl-11430552

RESUMO

OBJECTIVE: Validation of plasma volume (PV) determination by indocyanine green (ICG) in comparison to the gold-standard method with radioiodinated albumin, and investigation of the effect of commonly used plasma expanders (albumin, hydroxyethyl starch, and polygelatine) on PV in the early postoperative phase in patients undergoing cardiac surgery. DESIGN: Prospective clinical study. SETTING: Department of medicine and intensive care unit at a university hospital. PATIENTS AND PARTICIPANTS: Ten healthy volunteers and 21 patients after elective open-heart surgery. MEASUREMENTS AND RESULTS: PV of subjects was measured by i.v. injecting 5 microCi [125I]albumin (I-ALB). One hour later, PV was determined by a peripheral i. v. injection of 0.25 mg/kg body weight ICG (ICG1). In five subjects PV was measured repeatedly by ICG (ICG2) 1 h after ICG1. Mean PV of I-ALB and ICG1 or ICG2 showed consistent results. Further, we investigated central vs peripheral intravenous injection of ICG in six patients after open-heart surgery compared to [125I]albumin. There was no difference between mean PV measured by [125I]albumin and peripheral ICG (P = 0.40). PV determined by central injection of ICG was significantly higher than by the other methods. In 15 patients PV was determined by [125I]albumin. Thereafter, patients were randomly divided into three groups. Group ALB was infused with 1.75 ml/kg body weight human albumin 20%, group HAES with 5.25 ml/kg body weight hydroxyethyl starch 6%, and group HAEM with 7.0 ml/kg body weight polygelatine 3.5%. PV was measured 1 h and 4 h after infusion by ICG. There were no significant changes in PV between the groups. CONCLUSIONS: PV determination by peripheral i. v. injection of ICG produced reliable and consistent results when a reactive hyperaemia was produced by a tourniquet prior to injection. Therefore, central venous injection of ICG may not be prerequisite for precise measurements of PV. The expected acute increase in PV after infusion of commonly used plasma expanders after cardiac surgery was not found.


Assuntos
Ponte de Artéria Coronária , Hidratação , Verde de Indocianina , Substitutos do Plasma/uso terapêutico , Adulto , Estudos de Casos e Controles , Feminino , Deslocamentos de Líquidos Corporais , Humanos , Derivados de Hidroxietil Amido , Infusões Intravenosas , Radioisótopos do Iodo , Masculino , Pessoa de Meia-Idade , Poligelina , Estudos Prospectivos , Albumina Sérica
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA