排序方式: 共有26条查询结果,搜索用时 46 毫秒
1.
Simon Desmeules Renée Lévesque Isabelle Jaussent Hélène Leray-Moragues Lofti Chalabi Bernard Canaud 《Nephrology, dialysis, transplantation》2004,19(5):1182-1189
BACKGROUND: No single measurement adequately defines protein-energy malnutrition. In the dialysis population, somatic protein mass, a useful marker of protein malnutrition, is estimated using the creatinine index (CI), lean body mass (LBM) or both, but the clinical usefulness of these indices remains uncertain. Moreover, calculating these indices requires formal creatinine kinetics or urine and dialysate collection. A simpler method to estimate the creatinine generation rate (G(Cr)) probably might widen its use. METHODS: We evaluated the usefulness of creatinine-based indices for predicting mortality in a cohort of 226 French haemodiafiltration patients using the Cox proportional hazards method. We also proposed simple yet precise formulas to calculate post-dialysis creatinine (Cr(post)) concentrations and derive creatinine generation rates (G(Cr)) from readily available measures. These formulas were developed using a large database containing more than 10 000 measured Cr(post) and G(Cr) values based on formal creatinine modelling. A single set of monthly values was used to evaluate the validity of the formulas. RESULTS: When adjusted for comorbidities, sex and Kt/V, CI and LBM/body weight (LBM/BW) were better predictors of 5 year all-cause mortality than urea-based indices [survival relative risk (RR) = 0.24, P<0.01 for CI<22 mg/kg/day; RR = 0.33, P<0.02 for LBM/BW<0.75]. When the cohort was divided according to gender, similar results were found in males, but not in females. The different formulas allowed adequate prediction of Cr(post) and G(Cr) and classification of patients with good accuracy (CI<22: sensitivity = 94%, specificity = 82%; LBW/BW<0.75: sensitivity = 89%, specificity = 90%). CONCLUSIONS: In a haemodiafiltration population, CI and LBM are excellent predictors of long-term survival. In anuric Caucasian haemodialysis patients, CI and LBM can be estimated from biochemical and anthropometric measurements without relying on formal modelling. 相似文献
2.
The introduction of Ziprasidone stimulated discussion about frequency and importance of QTc-interval prolongations with antipsychotic therapy. In an open non-randomized study we collected data about QTc-interval, electrolytes, vital parameters and associated clinical symptoms in patients treated with atypical antipsychotics. 33 patients were scanned and some moderate QTc-interval prolongations but no clinical events were seen. Due to scarcity of such events existing data should be completed by large scale clinical studies and by registration of severe QTc-interval prolongations and torsades de pointes in central drug monitoring systems. 相似文献
3.
Yoshiro Okubo Hans Olsson Hiroshi Ito Mirijam Lofti Tetsuya Suhara Christer Halldin Lars Farde 《NeuroImage》1999,10(6):666
The Computerized Brain Atlas (CBA) transforms PET images of individual subjects into a standard brain anatomy. We have previously applied this to PET images with [11C]raclopride and confirmed that the D2 dopamine receptors in the striatum can be evaluated accurately with a standard brain anatomy. There is growing evidence that extrastriatal D2 receptors, in spite of their low density, have pathophysiological significance for schizophrenia. We used the CBA to explore the extrastriatal distribution of D2 receptors in 13 healthy subjects using [11C]FLB 457, a substituted benzamide with very high affinity for D2 and D3 receptors. There was good agreement between the specific binding ratios from CBA quantification of standardized images and those from region-of-interest analyses of original images. The highest levels of binding were observed in the putamen and caudate nucleus, followed by the globus pallidus and nucleus accumbens. Besides the basal ganglia, the hypothalamus and nucleus ruber also showed high levels of binding. Intermediate levels were found in the substantia nigra, nucleus subthalami, amygdala, and thalamus. Interestingly, there was very heterogeneous binding among the thalamic nuclei. The anterior and mediodorsal nuclei showed relatively high binding. The cerebral cortices showed lower levels with significant regional differences. Binding was highest in the temporal cortex and hippocampus followed by the anterior cingulate gyrus, and the parietal and frontal cortices, but was lowest in the occipital cortex. The use of CBA for analysis of [11C]FLB 457 binding makes it possible to build a normal database for the extrastriatal D2 receptors in the living human brain. The heterogeneous distribution of D2 receptors provides an attractive opportunity for new research on the pathophysiology and drug treatment of schizophrenia. 相似文献
4.
Plaschke K von Haken R Scholz M Engelhardt R Brobeil A Martin E Weigand MA 《Intensive care medicine》2008,34(3):431-436
5.
Barbara Skrlj Golob Giovanni Olivi Mirijam Vrabec Rita El Feghali Steven Parker Stefano Benedicenti 《Journal of endodontics》2017,43(10):1730-1735
Introduction
The purpose of this study was to determine the effectiveness of laser-activated irrigation by photon-induced photoacoustic streaming (PIPS) in the reduction of Enterococcus faecalis in root canal disinfection, varying laser energy output, and sodium hypochlorite (NaOCl) concentration. For effective removal of the smear layer, the sequence and resting time of the final irrigation steps were modified compared with the standard PIPS protocol.Methods
Eighty-six extracted single-rooted teeth were mechanically prepared, sterilized, and inoculated with E. faecalis for 4 weeks. Teeth were divided into 9 groups and treated with an Er:YAG laser using a PIPS 600/9 tip at the following parameters: 10 mJ or 20 mJ, 15 Hz, and a 50-microsecond pulse duration at 0.15 W or 0.3 W average power, respectively. Root canals were irrigated with different concentrations of NaOCl (ie, 1%, 3%, and 5% and activated using the adjusted PIPS protocol). The bacterial count was performed immediately after and 48 hours after decontamination and new incubation on an agar plate.Results
A statistically significant difference in bacterial counts (P < .05) was detected in all groups before and directly after the treatment and in groups treated with 5% NaOCl 48 hours after treatment. Scanning electron microscopic imaging showed an absence of bacteria and biofilm in the scanned areas after treatment with 5% NaOCl.Conclusions
Laser-activated irrigation using 5% NaOCl and a modified PIPS protocol resulted in effective eradication of the bacterial biofilm and removal of the smear layer. 相似文献6.
Achour S Rhalem N Khattabi A Lofti H Mokhtari A Oulaymani A Turcant A Bencheikh RS 《Thérapie》2012,67(1):53-58
Peganum harmala L. is commonly used in traditional medicine in Morocco for its sedative and emmenagogue properties but expose to the risk of overdose and poisoning. The aim of our study was to analyze a series of 200 cases of poisoning collected in poison control and pharmacovigilance center of Morocco in order to describe the epidemiological, clinical, therapeutic features and outcome of patients and indicate the toxicity of this plant used primarily for therapeutic purposes. Methods. This retrospective study performed over a period of twenty four years from January 1984 to December 2008. Results. The mean age of patients was 24.4±16.8 years with a female predominance (167 women against 33 men). Therapeutic circumstance was found in 32.5%, followed by suicide (28.5%) and abortion (13.5%). The symptomatology was dominated by neurological, gastrointestinal and cardiovascular signs respectively 34.4%, 31.9 % and 15.8%. The evolution has been specified in 114?cases, 7 deaths have been deplored with a fatality rate of 6.2%. 相似文献
7.
8.
Kaissi AA Kassi AA Chehida FB Latos-Bielenska A Gharbi H Ghachem MB Hendaoui L Kozlowski K 《Skeletal radiology》2007,36(1):77-81
We report a boy with ischial hypoplasia, vertebral malsegmentation and multiple other skeletal anomalies which do not fit
well with any previously-described disorder. The proband’s brother and mother were also slightly affected. We review the pertinent
literature, discuss the differential diagnosis and suggest that this may be a previously unreported autosomal dominant disorder,
with variable penetrance.We believe that the clinical and radiological features of various syndromes with ischial aplasia/hypoplasia
and vertebral malsegmentation are not sufficiently different to justify the current separate categories of “ischio-vertebral
dysplasia” and “ischio-spinal dysostosis”. We suggest that the term “ischio-vertebral syndrome” should be used until identification
of genes affecting ischial and axial morphogenesis is completed.
An erratum to this article can be found at 相似文献
9.
The antiepileptic carbamazepine can reduce aggressive behaviour and can be used as a mood stabilizer. We present a case report of a patient suffering from borderline personality disorder who was treated with carbamazepine and developed erythema multiforme. 相似文献
10.
Elevations in prolactin plasma concentration occur with antipsychotics due to their dopamine D2 receptor antagonism. Hyperprolactinemia may be associated with both acute (galactorrhea, amenorrhea, decreased libido etc.) and chronic (predisposition to osteoporosis and cardiovascular disease) treatment emergent effects in both men and women associated with apparently impaired compliance. The aim of our study was to investigate these supposed effects regarding clinically relevant endocrinologic symptoms under routine treatment conditions with newer, atypical antipsychotics. Our findings confirm that amisulpride frequently leads to a remarkable elevation of prolactin plasma concentration, same--in minor degree--for risperidone. Under treatment with quetiapine and olanzapine just temporary elevated prolactin levels were registered. However, no correlation between prolactin levels and dosage could be found. In females treated with amisulpride acute hormonal side effects were seen in a clinically relevant manner. Features of illness itself, stress factors, concomitant medication or other patient's conditions are supposed to be relevant factors for acute endocrine symptomatology. 相似文献