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991.
Ei Tae Kim Lee Hoo Kim Jung Il Lee Hee Seung Chin 《Japanese journal of ophthalmology》2009,53(6):598-602
Background
To assess the nature, incidence, and risk factors of retinopathy associated with pegylated interferon and ribavirin combination therapy in chronic hepatitis C patients. 相似文献992.
Phrabhakaran Nambiar Norliza Ibrahim Yeti Rosalina Muslim Tandjung P. Shanmuhasuntharam 《Oral Radiology》2008,24(1):10-15
Objectives We conducted a study to determine the numbers of susuks (charm needles) and their distribution in the craniofacial region of susuk wearers, and the sex, racial affiliation, and age of the wearers. In addition, we sought to determine whether the presence
of susuks posed any potential hazard to patients undergoing magnetic resonance imaging (MRI).
Methods We studied various radiographs of 33 susuk wearers (age range, 33–69 years) and investigated the most common sites of insertion in the craniofacial region. A susuk was also suspended inside a 1.5-T MRI machine to determined whether it was attracted by the machine’s magnet.
Results The largest number of susuks that we observed in the craniofacial region was 39 pins, and susuks were particularly numerous in Malay Muslim women. Other sites with susuks were the maxillofacial region (except the temporomandibular region) and the forehead. The susuks showed no ferromagnetic characteristics.
Conclusions As susuks are made from gold, they are generally biocompatible with human tissue and do not cause problems to their wearers. Gold and
the other minor metal constituents found in susuks have no ferromagnetic characteristics and therefore pose no hazard to patients undergoing MRI. 相似文献
993.
994.
995.
Masato Nakajima Koji Tsuchiya Yoshihiro Honda Hiroshi Koshiyama Tatsuho Kobayashi 《General thoracic and cardiovascular surgery》2009,57(12):654-656
Although the causes of stroke are diverse, thromboembolism due to a mobile aortic thrombus is rare. We describe a surgical
case of acute massive pulmonary embolism after critical cerebral infarction associated with a mobile ascending aortic thrombus
in a 52-year-old woman. Concomitant surgical removal of the aortic thrombus and pulmonary embolectomy was performed successfully,
and the patient has been stable without recurrent thromboembolic complications after 18 months of follow-up. 相似文献
996.
Wolfgang Skrandies 《Documenta ophthalmologica. Advances in ophthalmology》2009,119(3):209-216
Dynamic random-dot stereograms (dRDS) elicit brain activity generated exclusively by cortical neurons sensitive to binocular
horizontal disparity. We studied 20 adults with stereovision deficiency but otherwise normal vision. Psychophysical thresholds
were determined with static RDS and with the three-rod experiment. VEP was recorded from seven occipital channels. Stimuli
were presented on a monitor by dRDS as stereoscopic checkerboard patterns that moved in depth with 8 depth reversals per second.
Horizontal disparity ranged from 7 to 24.5 min of arc. Stimuli were displayed at the center, or in the left or right half
field. We determined electrophysiological thresholds as well as the disparity where largest responses occurred. Subjective
and electrophysiological thresholds showed a significant positive correlation. In addition, the right visual field was more
sensitive to dRDS stimuli than other locations. Squint angle was related to the disparity thresholds. Our data illustrate
correlations between clinical symptoms, perceptual deficiency, and VEP parameters. 相似文献
997.
Prognostic significance of declining ankle-brachial index values in patients with suspected or known peripheral arterial disease. 总被引:2,自引:1,他引:1
H H H Feringa S E Karagiannis O Schouten R Vidakovic V H van Waning E Boersma G Welten J J Bax D Poldermans 《European journal of vascular and endovascular surgery》2007,34(2):206-213
BACKGROUND: Peripheral arterial disease (PAD) is a risk factor for cardiovascular events. This study assessed the prognostic significance of repeated ankle-brachial index (ABI) measurements at rest and after exercise in patients with PAD receiving conservative treatment. METHODS: In a cohort study of 606 patients (mean age 62+/-12 years, 68% male), ABI at rest and after exercise was measured at baseline and after 1 year. Patients with reductions in ABI were divided into three equally-sized groups (minor, intermediate and major reductions) and were compared to patients without reductions. During a mean follow-up of 5+/-3 years, all-cause mortality, cardiac events, stroke and progression to kidney failure were noted. RESULTS: Death was recorded in 83 patients (14%) of which 49% were due to cardiac causes. Non-fatal myocardial infarction occurred in 38 patients (6%), stroke in 46 (8%) and progression to kidney failure in 35 (6%). By multivariate analysis, patients with major declines in resting (>20%) and post-exercise (>30%) ABI were at increased risk of all-cause mortality (HR: 3.3, 95% CI: 1.5-7.2, HR: 3.0, 95% CI: 1.4-6.4, respectively), cardiac events (HR: 3.1, 95% CI: 1.3-7.2, HR: 2.4, 95% CI: 1.1-5.6, respectively), stroke (HR: 4.2, 95% CI: 1.6-10.4, HR: 3.9, 95% CI: 1.4-10.2, respectively) and kidney failure (HR: 2.7, 95% CI: 1.1-7.5, HR: 6.9, 95% CI: 1.5-31.5, respectively), compared to patients with no declines in ABI. CONCLUSIONS: This study shows that major 1-year declines in resting and post-exercise ABI are associated with all-cause mortality, cardiac events, stroke and kidney failure in patients with PAD. 相似文献
998.
Thellea K. Leveque Le Yu David C. Musch Ronald D. Chervin David N. Zacks 《Sleep & breathing》2007,11(4):253-257
Patients with obstructive sleep apnea (OSA), in comparison to controls, have increased levels of circulating epinephrine and
norepinephrine, both of which are risk factors for the development of central serous chorioretinopathy (CSCR). The aim of
this pilot study was to investigate the frequency of symptoms that suggest OSA in CSCR patients and normal controls. The Berlin
Questionnaire, a validated research tool to assess risk for OSA, was administered to 29 patients who met the criteria for
active, acute, non-steroid-induced CSCR and 29 controls matched for age and sex. In this retrospective case-controlled study,
the main outcome measure was increased risk for OSA. The mean age of the patients was 47.8 years (range 29–72) and the mean
age of controls was 47.3 years (range 25–70). Seventy-six percent (22) of both groups were men. Survey scores showed 58.6%
(17) of patients with CSCR to be at an increased risk for OSA compared to 31.0% (nine) of controls. A conditional logistic
regression analysis showed that the CSCR group had a higher proportion with an increased risk for OSA compared to the control
group (odds ratio=3.67; 95% CI: 1.02, 13.14; P = 0.046). Patients with CSCR may be more likely than other adults to have OSA, and screening for this sleep disorder should
be considered in this population. Further research is warranted to determine whether sleep apnea may contribute to the development
of CSCR, and to assess whether treatment of sleep apnea might offer a new therapeutic option for some patients with CSCR. 相似文献
999.
Genevieve Fridlund Dunton Carol K. Whalen Larry D. Jamner Josh N. Floro 《Annals of behavioral medicine》2007,34(2):144-153
BACKGROUND: Research has sought to understand how environmental factors influence adolescent physical activity, yet little is known about where and with whom adolescents are physically active. PURPOSE: This study used electronic ecological momentary assessment (e.EMA) to map the social and physical contexts of exercise and walking across adolescence. Differences in physical activity contexts by gender, grade in school, day of the week, and season were examined. METHODS: Twice a year between 9th and 12th grade, 502 adolescents (51% female) of mixed ethnicity (55% White) participated in 4-day e.EMA intervals (Thursday-Sunday) where their primary activity (e.g., exercise, TV, homework), social company (e.g., friends, family, class), and physical location (e.g., home, school, outdoors) were assessed every 30 (+/-10) min during waking hours. RESULTS: Overall, greater proportions of exercise and walking were reported with friends, outdoors, and at school. However, boys were more likely to report exercising and walking in outdoor locations than girls. Exercising with classmates, family, and at school decreased across high school. Walking with family, friends, and outdoors also decreased. On weekdays compared to weekends, students reported a greater proportion of their exercise and walking at school. Students were more likely to report exercising and walking outdoors in the fall and the spring than in the winter. CONCLUSION: e.EMA showed that the social and physical contexts of adolescent exercise and walking vary as a function of gender, grade in school, day of the week, and season. Understanding the contexts of physical activity during the high school years can be helpful in designing interventions during adolescence. 相似文献
1000.
Gursel Dursun Ozan Bagis Ozgursoy Ozgur Kemal Isil Coruh 《European archives of oto-rhino-laryngology》2007,264(9):1027-1032
The purpose of this study was to present our experience with combined use of CO2 laser and cold instrumentation for Reinke’s edema surgery and to evaluate 1-year follow-up results of the technique in a
series of professional voice users. Fifteen patients with Reinke’s edema who underwent microlaryngoscopic surgery were included.
Videolaryngostroboscopy, perceptual and acoustic voice analyses were performed before and after surgery. During the 1-year
follow-up, no recurrence of Reinke’s edema was encountered. Significant postoperative improvement was obtained in the quality
of voice, in terms of GRBAS scores, Fo, jitter, shimmer and NHR. No evidence of laryngeal cancer was found on the histological
examinations. Combined use of CO2 laser and cold instrumentation provides a reliable and safe method for Reinke’s edema surgery, and cessation of smoking,
voice rest and control of the laryngopharyngeal reflux contribute to the success of surgery. We consider that the removal
of redundant mucosa of the vocal fold reduces the risk of the recurrence of Reinke’s edema and provides better quality of
voice. However, it does not imply that our method is superior to others’, but this procedure constitutes an effective treatment
of choice for Reinke’s edema patients, including professional voice users. 相似文献