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71.
《Minimally invasive therapy & allied technologies》2013,22(2):80-83
Abstract Aim: In the digestive tract, endoscopic band ligation (EBL) has been routinely used for the treatment of variceal bleeding and superficial malignancies. In recent years, endoscopic treatments for duodenal varices, adenoma, and cancer have also actively incorporated EBL. Although there have been a number of reports on the risks associated with the use of EBL in the esophagus, stomach, and colon, few studies have focused on EBL in the duodenum. We performed EBL procedures to evaluate the risks associated with the use of EBL in the duodenum. Material and methods: Overall, EBLs were performed at nine sites in duodenum sampled from a pig immediately after sacrifice. Submucosal saline injections were placed in three of the nine studied sites. Results: Regardless of saline injection, the full thickness of the duodenal wall was ligated in all attempts. Conclusions: Routine EBL is not recommended in the duodenum because the risk of perforation is unacceptably high. 相似文献
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César Fernández-de-las-Pe?as Carol A Courtney 《Journal of Manual and Manipulative Therapy》2014,22(1):44-50
In recent years, there has been an increasing knowledge in the pathogenesis and better management of chronic headaches. Current scientific evidence supports the role of manual therapies in the management of tension type and cervicogenic headache, but the results are still conflicting. These inconsistent results can be related to the fact that maybe not all manual therapies are appropriate for all types of headaches; or maybe not all patients with headache will benefit from manual therapies. There are preliminary data suggesting that patients with a lower degree of sensitization will benefit to a greater extent from manual therapies, although more studies are needed. In fact, there is evidence demonstrating the presence of peripheral and central sensitization in chronic headaches, particularly in tension type. Clinical management of patients with headache needs to extend beyond local tissue-based pathology, to incorporate strategies directed at normalizing central nervous system sensitivity. In such a scenario, this paper exposes some examples of manual therapies for tension type and cervicogenic headache, based on a nociceptive pain rationale, for modulating central nervous system hypersensitivity: trigger point therapy, joint mobilization, joint manipulation, exercise, and cognitive pain approaches. 相似文献
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《Injury》2016,47(8):1613-1617
IntroductionDespite good clinical outcome proposals, there has been relatively little published regarding the use of non-metallic implant for patellar fracture fixation. The purpose of the study was to perform a systematic literature review to summarize and evaluate the clinical studies that described techniques for treating patella fractures using non-metallic implants.MethodsA comprehensive literature search was systematically performed to evaluate all studies included in the literature until November 2015. The following search terms were used: patellar fracture, patella suture, patella absorbable, patella screw, patella cerclage. Two investigators independently reviewed all abstracts and the selection of these abstracts was then performed based on inclusion and/or exclusion criteria.ResultsA total of 9 studies involving 123 patients were included. Patients had a mean age of 33.7 years and were followed up for a mean of 18.9 months. The most common method for fracture fixations included the use of suture material. Good clinical outcomes were reported among all studies. Thirteen patients (10.5%) presented complications, while 4 patients (3.2%) required additional surgery for implant removal.ConclusionThere is a paucity of literature focused on the use of non-metallic implant for patellar fracture fixation. However, this systematic review showed that non-metallic implants are able to deliver good clinical outcomes reducing the rate of surgical complications and re-operation. These results may assist surgeons in choosing to use alternative material such as sutures to incorporate into their routine practice or to consider it, in order to reduce the rate of re-operation. 相似文献
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Gary G. Koch Ingrid A. Amara Julia MacMillan 《Journal of biopharmaceutical statistics》2013,23(3):347-410
This paper discusses alternative statistical models for the analysis of six crossover studies to determine whether better relief of tension headache occurs from treatment with an analgesic plus caffeine (C) than with the analgesic alone (A) or with placebo (P). Each patient in these crossover studies randomly received a pair of distinct medications in such a way as to treat the first two of four headaches with the initial medication in the pair and to treat the third and fourth headaches with the last medication in the pair. In order to have greater power for the C versus A comparison, three times as many patients were randomly assigned to the A:C and C:A sequence groups as to the A:P, C:P, P:A, and P:C sequence groups. An issue of statistical interest for these crossover studies is the extent to which the possibility of unequal carryover effects of the three medications influences the roles of alternative models for data analysis and the interpretation of results. When carryover effects for all three medications are equal, univariate analysis of variance for the difference scores between the average response for the first two headaches and the average response for the third and fourth headaches for each patient provides nearly the same power for pairwise treatment comparisons as more comprehensive multivariate methods for all four headaches. However, for comparisons concerning carryover effects and for treatment comparisons with adjustment for carryover effects, multivariate methods encompassing all four headaches jointly can provide greater power than univariate analysis for difference scores, particularly when there is low intraclass correlation for responses within the same patient. Another noteworthy role for multivariate methods in situations with potentially unequal carryover effects is their capacity to clarify whether multiple types of carryover effects occur across the second, third, and fourth headaches in the respective sequence groups. Multivariate models with alternative specifications of carryover effects are fit to the data from the six crossover studies to compare C, A, and P by weighted least squares. The role of potential variation among centers is addressed in these analyses by the use of stratified proportional means over centers, means of center means, and means ignoring centers. The primary focus of attention in the respective analyses is the evaluation of treatment comparisons with and without adjustment for potential differences among carryover effects of the treatments. Comparisons among carryover effects are assessed as well, but they mainly serve a background purpose since the principal issue is the extent to which findings for treatment comparisons are similar across alternative ways of accounting for potential carryover effects. For all models, the average predicted response across all headaches treated with C was significantly better than that for A or P. For models that adjusted treatment effects for carryover effects in a statistically efficient way, the adjusted direct treatment effect of C was significantly better than that of A or P. Thus, the superiority of C over A found robust support from models both with and without adjustment for potential differences among carryover effects of the treatments. 相似文献
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Pseudoamniotic Band Syndrome After Fetoscopic Laser Ablation of Placental Anastomoses for Twin‐Twin Transfusion Syndrome: Two Case Reports and Systematic Review
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《Journal of ultrasound in medicine》2017,36(11):2373-2377
Pseudoamniotic band syndrome is a rare complication that occurs after invasive procedures for complicated monochorionic twins. We report 2 cases of intrauterine recipient fetal death after laser therapy for twin‐twin transfusion syndrome due to umbilical cord constriction by the amniotic band. 相似文献