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61.
A group of 228 consecutive patients undergoing metrizamide myelography was prospectively evaluated for postprocedure symptoms. The observed prevalence of these symptoms concurs with previously reported inpatient studies, with the most common sequelae being exacerbation or onset of spine or extremity pain, headache, nausea, and paresthesia. Limitation of administered dose of metrizamide in lumbar myelography may slightly reduce the occurrence of common symptoms, but withdrawal of contrast medium at the completion of examination had no impact on their occurrence. There was a higher occurrence of paresthesia in cervical myelography, but otherwise there was no significant difference in symptoms between cervical and lumbar studies. Outpatient metrizamide myelography can be performed with relative safety with the potential for significant cost savings. 相似文献
62.
Vallbracht C; Liermann DD; Prignitz I; Beinborn W; Roth FJ; Kollath J; Landgraf H; Kaltenbach M 《Radiology》1989,172(2):327-330
Between December 1986 and October 1988, 83 patients with chronic peripheral artery occlusions were treated with a new technique. In 56 patients, the superficial femoral artery was completely occluded; in 21 patients, the popliteal artery; and in six patients, the iliac artery. The length of occlusion ranged from 5 to 35 cm (mean, 12.5 cm). The duration, estimated by history, was 5-48 months (mean, 16.5 months). In seven patients, durations of 6-36 months were documented angiographically. A flexible, blunt, motor-driven rotating catheter was introduced through an 8-F sheath, and rotational angioplasty was performed at low speed (up to 200 rpm). In 49 of 60 (82%) patients in whom this new technique was used as the primary intervention, the occlusions were successfully reopened. In 23 patients in whom conventional methods had failed more than 4 weeks earlier, the success rate for rotational angioplasty was 67% (12 of 18 patients); when the time interval was less than 4 weeks, only one of five patients was treated successfully. In none of the 83 patients did a perforation occur. This new technique can reopen chronic artery occlusions with a high degree of success and without the danger of vessel-wall perforation, even after failure of conventional techniques. 相似文献
63.
64.
The influence of peritoneal dialysate exchange on the ventricular function in 11 children on continuous ambulatory peritoneal dialysis (CAPD) therapy was studied before and after instillation dialysate. Systolic blood pressure, pulse rate, and echocardiographical data (shortening fraction and pre-ejection period/left ventricle ejection time-ratio) were obtained before and after instillation. There were no differences present with respect to the measured parameters after the abdomen was filled. It is concluded that in children treated with CAPD the exchange of normal volumes of dialysate has no influence on the function of the left ventricle. 相似文献
65.
66.
A device for manual compression and palpation during supine fluoroscopy has been designed. It enables effective use of the physiologic grasping and lever force potentials of the hand and wrist. The device permits optimal fluoroscopic palpation and compression techniques and prevents direct exposure to the lead-gloved hand. 相似文献
67.
Isolated headache as the presenting clinical manifestation of intracranial tumors: a prospective study 总被引:1,自引:0,他引:1
A Vázquez-Barquero FJ Ibáñez S Herrera JM Izquierdo J Berciano J Pascual 《Cephalalgia : an international journal of headache》1994,14(4):270-271
Isolated headache as the presenting clinical manifestation of intracranial tumors: a prospective study. Cephalalgia 1994;1'4:270-1. Oslo. ISSN 0333-1024We prospectively studied over two years the incidence of headache as the initial and isolated clinical manifestation of adult patients suffering from intracranial tumors ( n = 183). Fifteen patients (8%) exhibited headache as their first and isolated clinical manifestation. Age, sex, neoplasm localization, or pathological diagnosis did not correlate with the presence of headache. Posterior fossa location and hydrocephalus, though not reaching statistical significance, were more frequent in patients who presented with headache as the first symptom. At the moment of diagnosis, 59 (31%) of the patients admitted to headache, though only I out of the 15 patients starting as headache still had this symptom as the only manifestation. From our experience in adults, isolated headache for longer than 10 weeks will only exceptionally be secondary to an intracranial neoplasm. 相似文献
68.
个性化颅骨成形术中植入材料类型与颅骨缺损面积的关系 总被引:2,自引:0,他引:2
目的:分析个性化颅骨成形术中,植入材料类型与颅骨缺损面积的关系。
方法:选择解放军总医院第二附属医院神经外科2002-03/2005-01和河北省三河市医院神经外科2003-09/2005-04收治的资料齐全的计算机辅助设计颅骨成形术患者75例,分为嵌入性材料(骨水泥、硅橡胶)组40例,根据颅骨缺损面积又分为大面积(≥36cm2)组17例和小面积(〈36cm2)组23例;覆盖性材料(钛网)组35例,大面积组14例和小面积组21例。采用头颅CT超薄扫描(层厚1.5mm),三维重建,模拟缺损颅骨补片,应用激光快速成形技术,制作缺损颅骨及颅骨补片模型,患者认可后,根据患者的病情应用硅橡胶、骨水泥、钛网作为植入材料,进行手术植入。术后1周观察并发症:头痛、积液、松动。
结果:75例患者的补片与颅骨完整适配,塑形满意,术中无需修整,平均手术时间45min,83%(63/75)患者感到基本或完全恢复了原有容貌。手术并发症:嵌入性材料组头痛4例,积液10例,松动2例,共16例,其中大面积组13例,小面积组3例;覆盖性材料组头痛1例,积液2例,松动0例,共3例次,其中大面积组2例,小面积组1例。应用精确概率分析,两材料组之间手术并发症差异显著,两材料组颅骨缺损面积之间手术并发症差异显著,嵌入性材料大面积组与覆盖性材料大面积组之间手术并发症差异显著,嵌入性材料小面积组与覆盖性材料小面积组之间手术并发症无显著性差异。
结论:个性化设计的颅骨修补材料,能够最大限度的恢复患者外形,缩短手术时间,大面积的颅骨缺损应用钛网修补,小面积的应用钛网和嵌入性材料修补。根据患者颅骨缺损面积,选择不同植入材料,可以提高手术疗效,减少术后并发症。 相似文献
69.
The authors developed quantitative radioimmunoassays to allow direct measurement of total human IgG and individual IgG subclasses among antibodies bound to cell surfaces. The assays use four mouse monoclonal radioiodinated antibodies, one that reacts equally well with all four human IgG subclasses and three that are specific for human IgG subclasses 1, 2, or 3. The assays were used to analyze IgG subclass composition in 21 high-titer anti-D samples from Rh-negative volunteers immunized for Rh immunoglobulin production. Anti-D activity was restricted primarily to the IgG1 and IgG3 subclasses. Eleven of 21 sera demonstrated red cell antibodies with a marked predominance of IgG1 (87 +/- 3.6% of total IgG antibody, +/- SEM) and low levels of IgG3 (1.4 +/- 0.73%). In the remaining 10 sera, IgG3 made up a greater proportion of total IgG antibody (32 +/- 3.8%), although IgG1 was still predominant (61 +/- 4.1%). This observed dichotomy in the IgG subclass profiles of different anti-D sera may be a consideration in the selection of anti-D sera for the production of the immunoglobulin used in the prophylaxis of Rh-incompatible pregnancies. 相似文献
70.
Floor V. A. van Oort Frank C. Verhulst Johan Ormel Anja C. Huizink 《European child & adolescent psychiatry》2010,19(6):483-491
For prevention of anxiety in children and adolescents, it is important to know whether family stress is a predictor of anxiety.
We studied this in 1,875 adolescents from the Tracking Adolescents’ Individual Lives Survey (TRAILS) who were followed up
for 2 years, from age 10–12 to 12–14 years. Adolescents reported anxiety and depression symptoms at both assessments, and
parents reported family stress (family dysfunction and parenting stress) at the first assessment. Family dysfunction was not
associated with future anxiety, whereas high parenting stress was. Furthermore, family dysfunction was more strongly associated
with anxiety than with depression, whereas parenting stress was more strongly associated with depression. Level of parental
psychopathology explained part of the association of family stress with anxiety. The associations were modest and the understanding
of the origins of adolescents’ anxiety will require identifying other factors than family stress that account for more of
the variance. 相似文献