Tension-Free Vaginal Tape: Analysis of Outcomes and Complications in 404 Stress Incontinent Women

The aim of this prospective multicenter study was to evaluate the safety and efficacy of tension-free vaginal tape (TVT) for the surgical treatment of female stress incontinence. Four hundred and four women underwent the TVT procedure. Their mean age was 57 years (range 31-83). The median follow-up time was 21 months (range 12-35). The subjective and objective cure rates were 92% and 90%, respectively. Another 4% of the women were significantly improved by the procedure. Intra- and postoperative complications were few and included uneventful bladder perforations (6%), retropubic bleeding requiring surgery (0.5%), voiding difficulties (4%) in the postoperative course, and one obturator nerve injury. We conclude that the TVT procedure is associated with a high cure rate and a low morbidity.     

Genetics of ischemic stroke: Inheritance of a sporadic disorder

Stroke is a common neurologic disorder associated with comorbidities such as obesity, hypertension, hypercholesterolemia, and diabetes mellitus. Smoking or being the first-degree relative of a stroke patient can independently almost double the risk of ischemic stroke, supporting the hypothesis that stroke results from an intricate interplay between genes and the environment. Several candidate genes have been nominated but not confirmed as influencing stroke susceptibility and phenotype. A number of genes involved in monogenic forms of disease have been identified as causative in familial stroke. Herein we discuss these genes and the potential role of genetics in the more common sporadic form of stroke and therapeutic intervention strategies.     

Dural infolding during C1-2 myelography

Inward buckling of the dura at C1-2 may occasionally occur with hyperextension of the neck and can result in a difficult or unsuccessful puncture when the posterior lateral C1-2 approach is used for cervical myelography. In this circumstance, placement of the head in a neutral or slightly flexed position may widen the posterior subarachnoid space and facilitate the needle puncture.     

Congenital abnormalities of the aortic arch: MR imaging

Thirty-four patients, 1 month to 63 years old, with known or suspected congenital abnormalities of the aortic arch underwent magnetic resonance (MR) imaging. Sixteen patients were studied retrospectively, 18 prospectively. In all retrospective studies, the aortic arch abnormality was seen with MR imaging. In the prospective studies, MR imaging enabled diagnosis in 15 of 18 (83%) patients. Twenty-nine of 34 patients underwent two-dimensional echocardiography; nine were studied retrospectively, 20 prospectively. In the prospective studies, echocardiography enabled diagnosis in 13 of 20 (65%) patients. Although two-dimensional echocardiography has a high sensitivity in the detection of aortic arch abnormalities in the neonate, arch abnormalities in the neonate, its sensitivity is lower in older children, adults, and postoperative patients. The authors' experience shows that MR imaging is an important, noninvasive modality in the evaluation of older children, adults, and postoperative patients with congenital aortic arch abnormalities.     

Unsuccessful burch colposuspension: Analysis of risk factors

Seventy-five patients who underwent a Burch colposuspension were evaluated urodynamically before and after the surgical procedure. The women were divided into two groups, one with a urethral closure pressure of 30 cm H₂O or lower and one with a pressure over 30 cm H₂O. The two groups were comparable for age, parity, and weight. Significant differences were found between the two groups for both functional lengths and urethral closure pressure (P<0.005). The difference in the failure rate between the low urethral closure pressure group (21.2%) and the normal urethral pressure group (9.5%) was not statistically significant. On the other hand, the menopause is a condition which increases the surgical failure rate (26.6% versus 6.6%) (P<0.025).     

Anxiety in patients undergoing MR imaging

To determine and quantify the major sources of anxiety for patients undergoing magnetic resonance (MR) imaging and to suggest means by which to eliminate or diminish their negative effects, the authors studied anxiety in 46 subjects. Of these, 20 randomly selected subjects who successfully completed the examination participated in exit interviews. Six subjects who terminated the examination before completion also completed exit interviews. Pre-imaging and postimaging questionnaires (state-trait anxiety inventory) were administered to measure anxiety in the 20 other subjects. Anxiety was associated with the constrictive dimensions of the magnet bore, examination duration, coil noise, and temperature within the bore. Preparation at the point of referral was consistently absent, incomplete, or misleading. Patients used identifiable strategies to cope with the examination: blinding, breathing relaxation techniques, visualization of pleasant images, and performance of mental exercises.     

雷公藤春碱和雷公藤新碱的免疫抑制作用

雷公藤春碱(wilfortrine)和雷公藤新碱(euonine)ip 40及80 mg/kg对以溶血素反应为指标的体液免疫具有明显的抑制作。用雷公藤春碱ip 160mg/kg对GVHR为指标的细胞免疫也具有抑制作用。雷公藤新碱对DNCB所引起迟发超敏反应具有显著的抑制作用,并且能够降低小鼠碳廓清率和脾脏、胸腺的重量。