211 resultados para Corneal repair
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http://www.ncbi.nlm.nih.gov/pubmed/20014309
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Conservative management of acute type B aortic dissection is currently being challenged by primary thoracic endovascular aortic repair. Aim was to assess outcome and quality of life after these different approaches using an adjusted standard population as benchmark.
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Gerbode's defect, a left ventricular-to-right atrial communication, with involvement of the tricuspid valve acquired after bacterial endocarditis can be challenging to repair. We report a modified technique for a shunt closure and reconstruction of the tricuspid valve using a plicated bovine pericardial patch. Combining such a repair with a left ventricular patch resulted in a complete defect closure and competent tricuspid valve without regurgitation.
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The aim of our study was to analyze the neurophysiological monitoring method with regard to its potential problems during thoracic and thoracoabdominal aortic open or endovascular repair. Furthermore, preventive strategies to the main pitfalls with this method were developed.
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The aim of this study was to determine risk factors for mortality in different age groups after thoracic endovascular aortic repair (TEVAR).
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This study evaluated long-term results of thoracic endovascular aortic repair for atherosclerotic aneurysms involving descending aorta.
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Midterm results of TEVAR (thoracic endovascular aortic repair) in patients with aneurysms involving the descending aorta originating from chronic type B dissections are not known.
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We describe the case of a 23-year-old patient presenting for redo aortic arch surgery because of recoarctation and poststenotic aneurysm formation after patch aortoplasty in infancy. Using the hemi-clamshell approach, the entire aortic arch was replaced and the supraaortic branches were reimplanted. The applied surgical technique using hypothermic extracorporeal circulation without cardiac arrest allowed an uninterrupted cerebral and spinal cord perfusion due to stepwise clamping of the aortic arch during reconstruction and resulted in an excellent neurologic outcome at six-month follow-up.?
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To determine whether men with small abdominal aortic aneurysm have a preference between either endovascular or open aneurysm repair for future treatment.
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Pelvic organ prolapse is a common condition among women with a prevalence of 11% and may affect the anterior, posterior, or apical compartment with a negative impact on sexual function.
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OBJECTIVE To determine the practicability and accuracy of central corneal thickness (CCT) measurements in living chicks utilizing a noncontact, high-speed optical low-coherence reflectometer (OLCR) mounted on a slit lamp. ANIMALS STUDIED Twelve male chicks (Gallus gallus domesticus). Procedures Measurements of CCT were obtained in triplicate in 24 eyes of twelve 1-day-old anaesthetized chicks using OLCR. Every single measurement taken by OLCR consisted of the average result of 20 scans obtained within seconds. Additionally, corneal thickness was determined histologically after immersion fixation in Karnovsky's solution alone (20 eyes) or with a previous injection of the fixative into the anterior chamber before enucleation (4 eyes). RESULTS Central corneal thickness measurements using OLCR in 1-day-old living chicks provide a rapid and feasible examination technique. Mean CCT measured with OLCR (189.7 ± 3.34 μm) was significantly lower than histological measurements (242.1 ± 47.27 μm) in eyes with fixation in Karnovsky's solution (P = 0.0005). In eyes with additional injection of Karnovsky's fixative into the anterior chamber, mean histologically determined CCT was 195.2 ± 8.25 μm vs. 191.9 ± 8.90 μm with OLCR. A trend for a lower variance was found compared to the eyes that had only been immersion fixed. CONCLUSION Optical low-coherence reflectometry is an accurate examination technique to measure in vivo CCT in the eye of newborn chicks. The knowledge of the thickness of the chick cornea and the ability to obtain noninvasive, noncontact measurements of CCT in the living animal may be of interest for research and development of eye diseases in chick models.
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Palatal scarring is assumed to be a primary cause of facial growth derangement in cleft lip and palate. Evidence supporting this hypothesis is confounded by the clinical involvement of various surgeons, and therefore definitive conclusions are not possible. In this study, we investigated the dental arch relationship in two groups, Exposed (47 children; 11.2 yrs) and Unexposed (61 children; 11.2 yrs), with a unilateral cleft lip and palate operated on by the same surgeon. The technique of hard palate repair differed between the two groups. In the Exposed group, palatal bone of the non-cleft side only was left denuded, inducing scar formation. In the Unexposed group, a vomerplasty with tight closure of the soft tissues was applied. Three raters graded the dental arch relationship and palatal morphology using the EUROCRAN Index. The dental arch relationship in the Exposed group was less favorable than in the Unexposed group (p = 0.009). Palatal morphology in both groups was comparable (p = 0.323). This study demonstrates that reduction of denuded bony areas on the palate after palatal repair with a vomer flap had a favorable effect on the dental arch relationship. For palatal morphology, no effect of the type of palatal repair was found.
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To determine whether advanced age was independently associated with prohibitive surgical risks or impaired long-term prognosis after ruptured aortic aneurysm repair.