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91.
Traumatic iliac arteriovenous fistulas (AVFs) are extremely rare, with only two cases reported in literature involving the internal iliac artery and the external iliac vein. We report the case of a 23-year-old man who sustained a gunshot injury to the left lower quadrant of his abdomen and subsequently developed unilateral leg edema of "elephantiasic proportions." Intra-arterial digital subtraction angiography six years later was essential for diagnosis and comprehension of the pathomechanism. The angiographic examination showed an internal iliac false aneurysm, as well as a high-flow arteriovenous communication between the left internal iliac artery and external iliac vein complicated by thrombotic occlusion of the left common iliac vein. The initial vascular injury and the surgical management of simple ligation were thought to be responsible for the iliac AVF and the subsequent thrombosis of the common iliac vein. On the one hand, the thrombotic occlusion of proximal vein led to a sharp increase of mean pressure in the proximal and distal arteries and in the distal vein, resulting in chronic venous insufficiency with incompetent varicose veins. On the other hand, the restriction of venous outflow produced extreme peripheral edema and large superficial veins serving as collaterals to bypass the fistula. Vascular surgery could repair the lesion by closing and bypassing the AVF. 相似文献
92.
Focus group interviews were conducted with Hispanic teenagers to explore their patterns of alcohol consumption, influences on drinking and possible intervention strategies. The findings revealed that drinking and alcohol-impaired driving are common. Conviviality and social facilitation are the predominant contexts for alcohol consumption in this population. The strong influence of peers was detected where drinking to 'fit in' and be part of the crowd was observed. Parents were also noted to have influence. Some parents actively promoted drinking among their sons as it is often seen as a sign of masculinity or 'machismo'. Suggestions for effective prevention strategies included a preference for messages which vividly portray the harmful consequences of alcohol consumption and the use of testimonials from people who have suffered some form of impairment due to alcohol abuse. Teens, especially those who speak Spanish and understand the Hispanic culture, were seen as the most credible spokespersons for prevention campaigns. 相似文献
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Beck WC 《Journal of long-term effects of medical implants》1994,4(2-3):127-132
The barrier properties of natural rubber latex gloves have been of clinical interest since the concept of using an integrity monitor was introduced by me over 30 years ago. Although surgeons expect their gloves to serve as an effective barrier during use, products can and do fail. Failure is often unrecognized, resulting in the wearer's exposure to potential pathogens and the patient to microorganisms shed by surgical team members. Although a variety of solutions have been suggested (double gloving, cut-resistant gloves), these remedies do not alert the surgeon to a breach of barrier, the cost and consequences of which are astronomical to the health system. As a result, some form of breach detection device is now recommended to minimize the likelihood of exposure, infection, and/or allergy. 相似文献
95.
Instructional control of female sexual responding 总被引:1,自引:0,他引:1
To examine whether women can suppress genital arousal under instructional control, 25 women were presented with three erotic films and instructions to become as aroused as possible (Arouse) or to suppress arousal (Suppress). Genital responding was assessed using the heated oxygen electrode which yields two measures of vaginal responding: oxygen perfusion and thermistor assessment of vasocongestion. 36 to 40% of the sample was able to demonstrate a substantial reduction in sexual responding under Suppress instructions (depending upon the measure used), based on externally derived criteria to determine suppression. Differences were noted in the patterns of responding between suppressors and nonsuppressors, on both the pO2 and heat measures. Examination of thought-listing data indicated that subjects were able to identify cognitive strategies they used to suppress responding. In particular, successful suppressors were more likely to report the use of 2+ cognitive strategies, whereas the nonsuppressors reported reliance on a single strategy. Results are discussed in light of current theories of emotional factors in sexual responding, with emphasis on clinical implications. Directions for future research in female sexuality are highlighted.This study was conducted by Laurie Baldwin in partial fulfillment of the requirements for the Masters of Arts degree at the University of Houston. 相似文献
96.
This article presents an analysis of fee-for-service Medicaid data for King County, Washington. This analysis was conducted using Department of Social and Health Services billing records for patients of the community health centers of Seattle-King County (14 primary care sites), the Seattle-King County Department of Public Health (9 primary care sites), and Harborview Medical Center (a large tertiary facility with a primary care outpatient clinic associated with the University of Washington) from January through June, 1992. The complete billing records of all patients who utilized any one of the 24 sites were made available. These records were used to review utilization patterns and patient costs. The implications for community health centers regarding Medicaid managed care, health care reform, and population-based management are discussed. 相似文献
97.
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99.
Moore AA Morton SC Beck JC Hays RD Oishi SM Partridge JM Genovese BJ Fink A 《Medical care》1999,37(2):165-179
BACKGROUND: Current paradigms for conceptualizing alcohol-related problems typically focus on persons who are abusing or dependent on alcohol. These paradigms may not apply to older drinkers whose alcohol use, regardless of consumption-level, can cause problems because of age-related changes in physiology and interactions with increased morbidity, medication use, and functional limitations. OBJECTIVE: We convened an expert panel# to develop clinical indications of harmful, hazardous, and nonhazardous drinking in persons 65 years of age and older. RESEARCH DESIGN AND SUBJECTS: Nine panelists with expertise in psychiatry, geriatrics, internal medicine, and alcohol research were provided with epidemiological data and a published explicit literature review of alcohol use in the elderly. The RAND/UCLA two-round panel method was used to develop the indications. After the second round, the authors wrote a draft statement that was circulated to the panelists whose comments were incorporated into a final document. RESULTS: Panelists agreed on 215 scenarios in which older peoples' use of alcohol either alone or in the presence of chronic medical conditions, medication use, symptoms, smoking, and functional limitations are hazardous or harmful. Panelists' ratings of risk did not differ significantly between persons aged 65 to 74 years and those aged 75 years and older. CONCLUSION: Alcohol use may be hazardous or harmful for older persons, particularly in conjunction with physical or emotional illnesses, medication use, functional limitations, smoking, and driving after drinking. When asking about alcohol use in older persons, clinicians need to be aware of these factors to assist in identifying and managing potential or actual alcohol-related problems. 相似文献
100.
BACKGROUND: Dorsoposterior and/or perineal access to pelvic connective tissue spaces has lost its importance due to improved transabdominal techniques. Because of the development of minimally invasive surgery towards "soft-tissue endoscopy" we were interested in whether the video-assisted technique could give new impetus to the perineal approach. Successful experiments on corpses were followed by the first clinical application. METHODS: After the dilation of the retrorectal, rectovaginal and rectoprostatical spaces with a dissecting balloon, pneumoextraperitoneum was established and all extraperitoneal structures of the pelvis could be dissected. RESULTS: In the experimental and in the clinical situation the spaces could be perfectly surveyed. EXPERIMENTALLY: Complete, circular preparation of the rectum was achieved. Parts of the bladder, vagina and prostate were visualized ventrally. Laterally both ureters and the paraproctal and iliacal vessels could be dissected. In the clinical application the retrorectal space could be dilated without problems and it could be rinsed and drained. Postoperatively no complications were recorded. The patient could be discharged on the 17th postoperative day. CONCLUSION: The described method is suitable for clinical use. Besides the described indication, further surgical applications exists. 相似文献