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排序方式: 共有78条查询结果,搜索用时 15 毫秒
1.
A 40 year old male, previously well, presented with a posterior chest wall haematoma. Computerized tomography and ultrasound showed this to be intramuscular. Haematological indices were consistent with a diagnosis of polycythaemia vera. The haematoma and indices responded to hydroxyurea and venesection. This rare presentation of polycythaemia vera in a young person is described and the haemorrhagic complications of polycythaemia vera discussed. 相似文献
2.
Andrew M Blamire Sarah Cader Martin Lee Jackie Palace Paul M Matthews 《Magnetic resonance in medicine》2007,58(5):880-885
Axonal damage is a major factor contributing to permanent disability in patients with multiple sclerosis (MS); it has been extensively investigated in the brain using magnetic resonance spectroscopy (MRS). In this study, MRS was used to investigate the degree of neuronal damage in the cervical spinal cord in MS. Spectra were acquired from spinal cord and brain in 11 patients with MS (expanded disability status score [EDSS], range 2.5-7.0) and 11 controls. Brain lesion volume and spinal cord cross-sectional area were measured. Concentration of the neuronal metabolite N-acetyl-aspartate ([NAA]) was reduced in the spinal cord in MS patients relative to controls (reduced by 32%, P < 0.05), indicating significant neuronal damage. Additionally, the spinal cord was significantly atrophied in MS patients (15%, P < 0.001). No significant reduction in brain [NAA] was seen in the MS group. There were no correlations between clinical measures and cord atrophy or brain lesion volume on MRI; however, spinal cord [NAA] correlated with the cerebellar subscore of the neurological assessment (P < 0.005), while brain [NAA] correlated with disease duration (P < 0.05). MRS demonstrated cellular damage within the cord over and above the tissue atrophy seen by MRI. Combining MRI and MRS may therefore give a more complete picture of neurodegeneration in the spinal cord. 相似文献
3.
Borges EG Cader SA Vale RG Cruz TH Carvalho MC Pinto FM Dantas EH 《Archives of gerontology and geriatrics》2012,55(2):492-496
The aim of the present study was to analyze the influence of a ballroom dancing program on the functional autonomy and physical balance of institutionalized elderly individuals. The study enrolled 75 sedentary elderly subjects from long-term institutions who were randomly divided into a ballroom dance program group (EG; n=39) and a control group (CG; n=36). The protocol of the Latin American Group for Maturity (GDLAM) was used to evaluate functional autonomy. Physical balance was analyzed using a stabilometer and posture meter platforms. The level of significance in statistical tests was set at p<0.05. Regarding the physical balance evaluation, only the members of the EG achieved a significant reduction in weight (Δ=-0.98 kg) following the experiment, both in the intragroup (p=0.002) and in the intergroup analysis (p=0.012). In the evaluation of functional autonomy, only the EG showed a significant reduction in the execution time of all the tests and in the GDLAM index: GI (Δ=-6.99), both in the intragroup (p<0.001) and in the intergroup analysis (p=0.011). Thus, it can be inferred that sedentary elderly individuals who are residents of long-term institutions can improve their functional autonomy and balance with a ballroom dance program. 相似文献
4.
Rizna Abdul Cader Osama Ali Ibrahim Samir Paul Halim Abdul Gafor Rozita Mohd 《International urology and nephrology》2014,46(6):1209-1215
Purpose
Cardiovascular disease is the leading cause of mortality in dialysis patients with left ventricular hypertrophy (LVH) being an important predictor of mortality. We wanted to determine the prevalence of LVH in peritoneal dialysis (PD) patients and factors contributing to it.Methods
This is a cross-sectional study assessing LVH using echocardiogram in PD patients. Left ventricular mass index (LVMI) was calculated to determine LVH. Chronic fluid overload (overhydration) was assessed using the body composition monitor, and blood pressure (BP) was measured using 24-h ambulatory BP monitoring.Results
Thirty-one patients (21 females:10 males, 48.97 ± 14.50 years and dialysis vintage 40.0 ± 28.9 months) were studied. More than two-thirds (77.4 %) were hypertensive, and a third (35.5 %) were diabetic. Baseline data included mean serum albumin (37.34 ± 4.43 g/l), weekly Kt/V (2.02 ± 0.23), residual renal function of 68 (0–880) ml and ultrafiltration of 1,606.9 ± 548.6 ml. Majority of patients (80.6 %) had LVH on echocardiogram with LVMI of 136.5 ± 37.8 g/m2 and overhydration of 2.23 ± 1.77 l. Average systolic BP, diastolic BP and mean arterial pressure were 141.2 ± 23.3, 90.8 ± 19.7 and 107.6 ± 19.6 mmHg, respectively. Patients with LVH had a lower serum albumin (p = 0.003), were more overhydrated (p = 0.010) and were on higher number of anti-hypertensive agents (p ≤ 0.001). Predictors of LVMI were overhydration (p = 0.002), the presence of diabetes (p = 0.008) and the number of anti-hypertensive agents used (p = 0.026). However, overhydration (p = 0.007) was the main predictor of LVH on multivariate analysis.Conclusion
Overhydration is strongly associated with LVH in PD patients. 相似文献5.
DeCosta A D'Souza N Krishnan S Chhabra MS Shihaam I Goswami K 《Journal of medical ethics》2004,30(3):318-323
Disease control has increasingly shifted towards large scale, disease specific, public health interventions. The emerging problems of HIV, hepatitis, malaria, typhoid, tuberculosis, childhood pneumonia, and meningitis have made community based trials of interventions a cost effective long term investment for the health of a population. The authors conducted this study to explore the complexities involved in obtaining informed consent to participation in rural north India, and how people there make decisions related to participation in clinical research. 相似文献
6.
Existing criteria used to evaluate information on the World Wide Web often are not related to nursing, especially in relation to clinical and evidence-based practice. Published criteria have been found orientated to the health-consumer, medicine, or general information. In this study, the process by which nurses evaluate practice-related information and the associated evaluative nursing criteria were investigated using a grounded theory approach. In the first stage of this ongoing investigation, semistructured interviews were used to collect data from UK postregistration nursing students. The findings from this initial study provided indications of the process and the criteria for evaluating information on the World Wide Web. Participating students identified intuition as part of the evaluative process. They identified some criteria similar to existing standards, but critically, with additional criteria that are nursing practice related. Because these new criteria are significant for evaluating nursing information, further refinement of these findings is being undertaken through the next stage of the research program. 相似文献
7.
It was demonstrated experimentally that the transparency of the eye lenses diminishes under the influence of a prolonged vibration. Investigations were performed in a group of rabbits which were subjected to a long-lasting exposition to mechanical vibration of 10 Hz throughout a period of 5 months. The transparency of the extracted lenses was evaluated by spectrophotometry and compared with lenses of 2 control groups. Group 1 consisted of rabbits which in the same period of 5 months were subjected to a continuous neon illumination of 1200 lx intensity as a cataractogenous factor. A second comparative group consisted of rabbits not exposed to any external factor. The authors detected a statistically significant decrease of transparency of lenses of the examined group in reference towards the second comparative group, it was however smaller than in the 1-st group. 相似文献
8.
Migraine is a common debilitating neurological disease characterised by attacks of severe headache with or without preceding
aura. Its aetiology remains elusive; however it is clear that an interplay of genetic and environmental components play an
important role. Familial hemiplegic migraine (FHM) is a rare and severe variant of migraine with aura and follows an autosomal
dominant pattern of inheritance. This disease is genetically heterogeneous,with three causative genes having been identified.
This review uses insights garnered from FHM to try and shed light on possible migraine disease pathogenesis. 相似文献
9.
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