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排序方式: 共有347条查询结果,搜索用时 15 毫秒
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Myelopathy due to epidural varicose veins of the cervicothoracic junction. Case report 总被引:2,自引:0,他引:2
A 30-year-old man presented with a subacute course of myelopathic signs and symptoms. Magnetic resonance imaging demonstrated an epidural mass lesion of the spinal canal at the cervicothoracic junction causing compression of the spinal cord. Laminectomy with resection of this lesion revealed a large varix with acute and chronic thrombus. Postoperatively, an improvement in neurological function occurred. Spinal epidural varicosities have been reported as an etiological factor in lumbar and sacral radiculopathies. This is the first reported case of spinal cord compression in association with spinal epidural varices. The diagnosis, pathophysiology, and management of this disorder are presented. 相似文献
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Kemal Yucesoy Iman Feiz-Erfan Robert F. Spetzler Patrick P. Han Stephen Coons 《Skull base》2004,14(3):169-173
A 42-year-old female presented with subarachnoid hemorrhage (SAH), presumably from a radiation-induced anterior communicating artery aneurysm. Six years earlier, she had undergone radiation treatment for an optic glioma that was diagnosed based on imaging criteria. The aneurysm was successfully clipped, and the optic glioma was biopsied to verify the diagnosis histologically. Radiation-induced cerebral aneurysms often manifest with a fatal SAH. These aneurysms typically develop in the field of radiation and are diagnosed a mean of 8.52 years after radiation. Rarely, the aneurysm sac thromboses spontaneously. Clipping or coiling of the aneurysm can be an effective treatment. 相似文献
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Quality-of-life weights for the US population: self-reported health status and priority health conditions, by demographic characteristics 总被引:1,自引:0,他引:1
BACKGROUND: Many of the large ongoing national surveys of the US population contain a question that asks for the respondent's self-reported health status: "excellent," "very good," "good," "fair," or "poor." These surveys could be used to conduct cost-utility analyses of health care policies, treatments or other interventions if quality-of-life (QOL) weights for the self-reported health statuses were also available. OBJECTIVE: The objective of this study was to produce nationally representative QOL weights for self-reported health status and for 10 "priority" health conditions, by a series of demographic variables. RESEARCH DESIGN: The Medical Expenditure Panel Survey contains the questions from the EQ-5D health status measure. A recent study has calculated time-trade-off-derived QOL weights corresponding to the EQ-5D health states for a large sample of Americans. We use these data to construct QOL weights for the 5 self-reported health status categories and 10 priority health conditions, by a series of demographic variables. RESULTS: Mean and median QOL weights were produced for self-reported health status, the 10 priority health conditions, and the demographic variables. We also report mean QOL weights for the self-reported health state and priority health conditions, by the demographic variables. Finally, ordinary least squares and censored least absolute deviation regression equations were used to estimate adjusted QOL weights for these variables. CONCLUSIONS: By providing nationally representative QOL weights for self-reported health status and 10 priority health conditions, by demographic variable, we have facilitated the use of large national surveys for conducting cost-utility analysis and increased their value to researchers and policy makers. 相似文献
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Huynh Victoria Vemuru Sudheer Hampanda Karen Pettigrew Jessica Fasano Marcella Coons Helen L. Rojas Kristin E. Afghahi Anosheh Ahrendt Gretchen Kim Simon Matlock Dan D. Tevis Sarah E. 《Annals of surgical oncology》2022,29(10):6238-6251
Annals of Surgical Oncology - Using explanatory mixed methods, we characterize the education that patients with breast cancer received about potential sexual health effects of treatment and explore... 相似文献
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Pulmonary hypertension (PH) is often caused by left heart disease (LHD) such as heart failure (HF) or valvular heart disease. Historically, few randomized controlled trials have evaluated the off-label use of medications for treating pulmonary arterial hypertension (PAH) in patients with PH-LHD. However, multiple randomized controlled trials have been published over the last decade that investigated their use in patients with PH-LHD. In addition, recent updates in the classification and definitions of PH have led to an improved recognition of PH-LHD phenotypes, notably combined post-capillary and pre-capillary PH and isolated post-capillary PH. In this systematic review, we show that PAH medications should not be recommended in two distinct HF populations: patients with HF without definitive PH diagnosis and patients with isolated post-capillary PH due to HF. In addition, the use of bosentan or macitentan is not recommended in patients with combined post-capillary and pre-capillary PH due to HF, but sildenafil may be considered to improve pulmonary hemodynamics and exercise capacity in patients with combined post-capillary and pre-capillary PH due to HF. Riociguat 2 mg 3 times daily may also be considered to improve pulmonary hemodynamics in patients with combined post-capillary and pre-capillary PH due to heart failure with reduced ejection fraction but not heart failure with preserved ejection fraction. The postoperative use of sildenafil in the setting of PH after valvular heart disease intervention was evaluated. Limited clinical data and safety concern warrants caution with the postoperative use of sildenafil in patients with PH due to valvular heart disease. Despite recent advances in the understanding of PAH medications for patients with PH-LHD, uncertainty remains about their utility in distinct subgroups. Nonetheless, PAH pharmacotherapy should generally be avoided for most patients with PH-LHD. 相似文献
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Following training with distinctively flavored nutritive solutions that differ in concentration and thus in caloric value, rats demonstrate flavor-postingestive consequence learning by preferentially consuming one of the flavors in two-bottle tests (both flavors in nutrient-identical solutions.) Experiment 1 investigated whether the relative familiarity of the flavor-nutrient combinations encountered in two-bottle tests contributes to the observed preference. One of the training concentrations (rather than the customary intermediate concentration) was used to present the flavors in testing; thus, one of the flavors was in a familiar context while the other was in an unfamiliar context. The results of two independent trials (rats trained with 1 and 5% sucrose; rats trained with 5 and 40% sucrose) confirmed that two-bottle test preference was not a preference for the familiar flavor-nutrient combination. Experiment 2 examined whether caloric expectancies based upon a previously learned flavor-postingestive consequence association would affect total daily intake. On alternating days, rats consumed 30 mL of dilute (5%) and concentrated (40%) sucrose, each distinctively flavored. When given 30 mL of 22.5% sucrose containing each of the flavors on separate test days, they ate less chow and thus fewer total calories over 24 h when given the flavor previously paired with concentrated sucrose. Experiment 3 replicated the design of Experiment 2 except that fat calories were used instead of sucrose; no significant adjustment of chow intake in extinction tests was noted, even when the number of fat calories used in training was increased (Experiment 4). Thus, rats did not exhibit flavor-cued modulation of chow intake when trained with fat, in contrast to responsivity to flavor cues when trained with sucrose. This differential responding to fat versus carbohydrate calories is consistent with previous observations, in a variety of paradigms, that modulation of caloric intake is less energetically appropriate when ingested foods are high in fat relative to high-carbohydrate foods. 相似文献