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排序方式: 共有3210条查询结果,搜索用时 15 毫秒
51.
Kurata C Uehara A Sugi T Ishikawa A Fujita K Yonemura K Hishida A Ishikawa K Tawarahara K Shouda S Mikami T 《Nephron》2000,84(4):312-319
To characterize uremic cardiac autonomic neuropathy, we measured plasma catecholamines, analyzed the 24-hour heart rate variability (HRV), and acquired serial images with (123)I-metaiodobenzylguanidine (MIBG) in 44 patients with chronic renal failure on hemodialysis and in 14 controls. Time-domain measures were calculated using the Marquette HRV program. MIBG clearance rates from the heart and lung were evaluated on planar images, and the regional MIBG uptake in the left ventricular myocardium was evaluated with single-photon emission computed tomography. Compared with controls, plasma dopamine and norepinephrine levels were elevated (p < 0.001 and p = 0.03, respectively), and all the time-domain measures of HRV were reduced in the patients (p < 0.001). The MIBG clearance rate from the heart was higher (p < 0.001), that from the lung was lower (p < 0.001), and the myocardial MIBG distribution was more heterogeneous in patients than in controls (total uptake score p = 0.03). These variables were similar between 26 patients without and 18 patients with hypertension. Uremic cardiac autonomic neuropathy may be characterized by high plasma levels of dopamine and norepinephrine, reduced HRV, and abnormal MIBG kinetics in the heart with heterogeneous myocardial MIBG distribution, suggesting cardiac sympathetic overactivity and parasympathetic deterioration. In addition, abnormal MIBG kinetics in the lung may imply pulmonary sympathetic nervous dysfunction and/or endothelial dysfunction in uremic patients. 相似文献
52.
Browning N Zammit M Rodriguez D Sauvage L Loudenback D Raghavan A 《South African journal of surgery. Suid-Afrikaanse tydskrif vir chirurgie》2000,38(2):36-41
Forty lower limb bypasses using arm veins were performed on 37 patients. The indications for surgery were limb threat in 50% of cases, graft failure in 33%, aneurysms in 10% and claudication in 7%. Saphenous veins were absent because of prior use in 73% of cases, and because they were unsuitable in 27%. A single vein was used in 48%, 2 veins in 40% and 3 veins in 12% of cases. Seventy-four per cent of cases had a single-vessel run-off below the distal anastomosis. Eighty-two per cent of the distal anastomoses were to infrapopliteal arteries. The primary and secondary rates of these 40 bypasses at a mean follow-up of 14 months (range 1-40 months) were 74% and 90%, respectively. Limb salvage was 94%. Peri-operative morbidity and mortality were 23% and 3%, respectively. The anatomical and technical aspects of harvesting arm veins are critical to the success of this procedure and will be emphasised. We have found arm veins to be a durable source of accessible autogenous grafts for lower limb revascularisation in the absence of suitable saphenous veins. 相似文献
53.
Brugada syndrome is characterized by right bundle-branch block, ST elevation in leads V 1 through V 3 and normal QT interval. Ventricular fibrillation frequently occurs in patients with Brugada syndrome. There have been few reports of anesthetic management of Brugada patients. We managed a 47-year-old man with Brugada syndrome, who underwent hemilaminectomy under general anesthesia, without untoward cardiovascular events. Potential problems in anesthetic management of patients with Brugada syndrome are also discussed. 相似文献
54.
B. Velayutham D. Nair S. Ramalingam C. M. Perez-Velez M. C. Becerra S. Swaminathan 《Public Health Action》2015,5(4):222-235
Setting: Numerous knowledge gaps hamper the prevention and treatment of childhood drug-resistant tuberculosis (TB). Identifying research priorities is vital to inform and develop strategies to address this neglected problem.Objective: To systematically identify and rank research priorities in childhood drug-resistant TB.Design: Adapting the Child Health and Nutrition Research Initiative (CHNRI) methodology, we compiled 53 research questions in four research areas, then classified the questions into three research types. We invited experts in childhood drug-resistant TB to score these questions through an online survey.Results: A total of 81 respondents participated in the survey. The top-ranked research question was to identify the best combination of existing diagnostic tools for early diagnosis. Highly ranked treatment-related questions centred on the reasons for and interventions to improve treatment outcomes, adverse effects of drugs and optimal treatment duration. The prevalence of drug-resistant TB was the highest-ranked question in the epidemiology area. The development type questions that ranked highest focused on interventions for optimal diagnosis, treatment and modalities for treatment delivery.Conclusion: This is the first effort to identify and rank research priorities for childhood drug-resistant TB. The result is a resource to guide research to improve prevention and treatment of drug-resistant TB in children. 相似文献
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S. Subramaniam B. Pattnaik A. Sanyal J. K. Mohapatra S. S. Pawar G. K. Sharma B. Das B. B. Dash 《Transboundary and Emerging Diseases》2013,60(3):197-203
Foot‐and‐mouth disease (FMD) is endemic in India and causes severe economic loss. Status of FMD in the country for five fiscal years is presented. Outbreaks were more in number in 2007–2008 than 2010–2011. Three serotypes of FMD virus (O, A and Asia1) are prevalent. Serotype O was responsible for 80% of the confirmed outbreaks/cases, whereas Asia1 and A caused 12% and 8%, respectively. Geographical region‐wise assessment indicated varying prevalence rate in different regions viz; 43% in Eastern region, 31.5% in Southern region, 11.6% in North‐eastern region, 5% Central region, 4.4% Western region and 4% in Northern region. Highest number of outbreaks/cases was recorded in the month of September and lowest in June. Emergence and re‐emergence of different genotypes/lineages within the serotypes were evident in real‐time investigation carried out from time to time. Continues antigenic divergence in serotype A resulted in change in the vaccine strain in 2009. As on date, all genetic diversity within the serotypes is well tolerated by the vaccine strains. Unrestricted animal movements in the country play a major role in the spread of FMD. 相似文献
59.
<正>Stroke management exerts insurmountable societal and economic burden on the patient as well as their caregivers.In the year 2010 alone,the direct and indirect costs of stroke care amounted to 36.5 billion dollars(Go et al.2014).Despite concentrated efforts to develop a safe,ef- 相似文献
60.
Payam Sajedi Lydia Chelala Joel Nunez-Gonalez Carolyn Cronin Steven Kittner Jiachen Zhuo Yang Zhang Dheeraj Gandhi Prashant Raghavan 《Journal of neuroradiology. Journal de neuroradiologie》2019,46(2):136-140