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Träfflista för sökning "WFRF:(Toth Ervin) srt2:(2015-2019)"

Sökning: WFRF:(Toth Ervin) > (2015-2019)

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41.
  • Yung, Diana E., et al. (författare)
  • Clinical outcomes of negative small-bowel capsule endoscopy for small-bowel bleeding : A systematic review and meta-analysis
  • 2017
  • Ingår i: Gastrointestinal Endoscopy. - : Elsevier BV. - 0016-5107. ; 85:2, s. 2-317
  • Tidskriftsartikel (refereegranskat)abstract
    • Background and Aims: Small-bowel bleeding is the primary indication for capsule endoscopy (CE). Many experts advocate a "watch-and-wait" policy in negative CE. This meta-analysis examines the odds of rebleeding after negative index CE and the impact on long-term follow-up. Methods: A comprehensive literature search identified articles examining the rebleeding rate after negative CE. Demographic and clinical information with emphasis on outcomes was retrieved, pooled, and analyzed. Heterogeneity among studies was assessed using the I2 statistic. A random effects model was used as the pooling method because of high heterogeneity. Risk of bias was assessed using the quality assessment of diagnostic accuracy studies (QUADAS-2) tool. The primary outcome evaluated was the pooled odds ratios (ORs) for rebleeding after a negative CE for obscure GI bleeding (OGIB). Results: Twenty-six studies with 3657 patients were included. The pooled rate of rebleeding after negative CE was .19 (95% CI, .14-.25; . P < .0001). The pooled OR of rebleeding was .59 (95% CI, .37-.95; . P < .001). The effect was more pronounced in studies with a short follow-up (OR, .47; 95% CI, .24-.94; . P < .001). There was no statistically significant difference in rebleeding after CE for occult and overt OGIB. Prospective studies showed a lower OR of rebleeding of .24 (95% CI, .08-.73; . P = .01). Most studies were high quality. Conclusions: Our analysis shows that negative CE provides adequate evidence of a subsequently low risk of rebleeding. Such patients can therefore be safely managed with watchful waiting. However, patients who rebleed after 2 years may need to be investigated for a new source of blood loss.
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42.
  • Yung, Diana E, et al. (författare)
  • Clinical validity of flexible spectral imaging color enhancement (FICE) in small-bowel capsule endoscopy : a systematic review and meta-analysis
  • 2017
  • Ingår i: Endoscopy. - : Georg Thieme Verlag KG. - 0013-726X .- 1438-8812. ; 49:3, s. 258-269
  • Forskningsöversikt (refereegranskat)abstract
    • Patients and methods A comprehensive literature search was conducted. We measured pooled rate of lesion visualization improvement and improvement in lesion detection comparing FICE settings 1 – 3 and WLE, for angioectasias and ulcers/erosions. Pooled results were derived using the random-effects model because of high heterogeneity as measured by I 2. Repeated-measures analysis of variance (ANOVA) was used to measure differences in lesion detection between WLE and the three FICE modes. Results 13 studies were analyzed. All studies used the PillCam SB 1 and/or SB 2 devices. Most used experienced readers. Improvement in delineation had been investigated in 4 studies; in the 3 studies entered into the meta-analysis, using FICE setting 1, 89 % of angioectasias and 45 % of ulcer/erosions were considered to show improved delineation. For FICE settings 2 and 3, small proportions of images showed improved delineation. Heterogeneity of studies was high with I 2 > 90 % in 4/6 analyses. Lesion detection had been investigated in 10 studies; meta-analysis included 5 studies. Lesion detection did not differ significantly between any of the FICE modes and WLE. Conclusions Overall, the use of the three FICE modes did not significantly improve delineation or detection rate in SBCE. In pigmented lesions, FICE setting 1 performed better in lesion delineation and detection.
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