Search results for "Foramen"
showing 10 items of 93 documents
Ultrasonography for the diagnosis of Lyme disease in cases of acute facial paralysis.
1992
Ultrasonography of the parotid gland was introduced in 1989 as part of the diagnostic protocol of every patient treated in our clinics with acute facial paralysis. Ten of 50 patients so tested were found to have unilateral nonpalpable enlarged lymph nodes in the caudal portion of the parotid gland around the stylomastoid foramen. All 10 patients were eventually diagnosed as having Lyme disease. It is suggested that in patients with acute facial paralysis, ultrasonography is an inexpensive tool to improve diagnosis of Lyme disease and may have a more useful purpose in monitoring therapy.
Chronic sacral spinal nerve stimulation for fecal incontinence: long-term results with foramen and cuff electrodes.
2002
PURPOSE: Sacral spinal nerve stimulation is a new therapeutic approach for patients with severe fecal incontinence owing to functional deficits of the external anal sphincter. It aims to use the morphologically intact anatomy to recruit residual function. This study evaluates the long-term results of the first patients treated with this novel approach applying two techniques of sacral spinal nerve stimulator implantation. METHODS: Six patients underwent either of two techniques for electrode placement: one “closed” (electrodes placed through the sacral foramen) and one “open” (cuff electrodes placed after sacral laminectomy). Follow-up evaluation of their continence status ranged from 5 to …
The PFO anatomy evaluation as possible tool to stratify the associated risks and the benefits arising from the closure
2010
Aims According to the current guidelines, the patent foramen ovale (PFO) is still considered a qualitative factor and, as a consequence, its closure is recommended just on the basis of its ‘presence’. Methods and results In the year 2008, we evaluated 25 patients (mean age 62.7) with acute cerebrovascular event and 92 patients (mean age 27.3) suffering from migraine with aura. No PFO was reported in 79 patients. A venous-to-arterial circulation shunt had been shown in 38 patients (29 subjects with migraine and 9 subjects with prior stroke). According to the number of microbubbles arrived during the Valsava manoeuvre, we found: 25 small PFO, 6 moderate PFO, and 6 severe PFO. In the baseline …
The Retrotransverse Foramen of the Atlas Is not a Modern Anatomic Variation
2019
Background The retrotransverse foramen (RTF) is a nonmetric variant of the atlas vertebra that consists of an abnormal accessory foramen located on the posterior root of the transverse process and it extends from the posterior root of the transverse process to the root of the posterior arch. Its presence has been related to regional variations of the venous circulation. It is currently unknown whether the RTF is a modern or an ancient anatomic variation. Case Description We analyzed the skeletal remains from the late-ancient Roman necropolis (II-VI centuries ad ) of La Boatella (Valencia, Spain) and we found a well-preserved individual skeleton that presented with a left retrotransverse for…
Paradoxical embolism through a patent foramen ovale from central venous catheter thrombosis: A potential cause of stroke
2020
Paradoxical embolism refers to a potential condition in which an embolus arising from a venous source crosses into the systemic circulation through a right-to-left cardiac shunt causing an arterial embolism. A 39-year-old woman carrier of a central venous catheter (CVC) without evident risk factors for stroke, developed an acute right homonymous hemianopia during hemodialysis. On neuroimaging, an infarct in the territory of the left posterior cerebral artery was demonstrated. Transesophageal echocardiography revealed a patent foramen ovale (PFO) and a large fluctuating thrombus in the right atrium on the tip of the CVC, thus allowing a diagnosis of ischemic stroke from paradoxical embolism.…
Cost-effectiveness analysis of patent foramen ovale closure with Amplatzer plus medical therapy compared to medical therapy in patients with a histor…
2021
Abstract Background A patent foramen ovale (PFO) is formed when the ovale foramen does not close spontaneously or re-opens leaving the right and left atrium connected. The present study was conducted to analyze the cost-effectiveness of PFO closure with Amplatzer device plus medical therapy (MT) compared to MT alone in the French reimbursement system for PFO patients with a prior history of stroke, using the RESPECT study data. Methods A multi-state Markov model was used. The analysis was conducted from a collective perspective over a 10-year time horizon with 4% discount applied for costs and health effects. The simulated population included adult patients with PFO. Sub-group analysis was …
Biportal neuroendoscopic microsurgical approaches to the subarachnoid cisterns. A cadaver study.
1996
A preclinical cadaver study was performed to develop the technique of biportal neuroendoscopic dissection in the subarachnoid space of the basal cisterns and to test the feasibility, utility, and safety of this new technique. In 23 fresh post-mortem adult human cadavers and 2 formalin-fixed adult human head specimen a total of 33 biportal endomicrosurgical dissections into and within the basal cisterns were carried out. Following suction of cerebrospinal fluid from the subarachnoid space 0 degree-, 30 degrees-, and 70 degrees-lens-scopes (Aesculap AG, Tuttlingen, Germany) with outer diameters of 4.2 mm and trochars with outer diameters of 5 to 6.5 mm were introduced into the surgical field.…
Patent foramen ovale closure in stroke patients with migraine in the CLOSE trial. The CLOSE-MIG study.
2021
International audience; Background and purpose The efficacy of patent foramen ovale (PFO) closure to reduce the frequency of migraine attacks remains controversial. Methods This was a planned sub-study in migraine patients enrolled in a randomized, clinical trial designed to assess the superiority of PFO closure plus antiplatelet therapy over antiplatelet therapy alone to prevent stroke recurrence in patients younger than 60 years with a PFO-associated cryptogenic ischaemic stroke. The main outcome was the mean annual number of migraine attacks in migraine patients with aura and in those without aura, as recorded at each follow-up visit by study neurologists. Results Of 473 patients randomi…
In vitro evaluation of the ability of three apex locators to determine the working length during retreatment.
2005
The purpose of this in vitro study was to evaluate the accuracy of three apex locators in determining the working length during the retreatment process. Twenty extracted single-rooted human teeth with mature apices were used in this study. The root canal length of each tooth was measured placing a #15 file until the tip was visible at the apical foramen. The direct visual measurement was reduced by 0.5 mm and recorded. The root canals were instrumented and filled to the direct visual measurement using lateral compaction technique. After 7 days the teeth were retreated using three apex locators: ProPex, NovApex, and Root ZX, for determining the retreatment working length. Afterward, comparis…
Thrombosis, fracture, and percutaneous removal of a patent foramen ovale closure device 1 month after successful deployment
2010
Several different devices have been developed for the percutaneous closure of interatrial defects and patent foramen ovale. Although the implantation of these devices is both safe and effective, a number of complications, both in the early and the late follow-up, may occur. We describe a case of device fracture manifested early (1 month after implantation) with the formation of massive thrombosis on the right atrial disc. The patient was treated with anticoagulants and the device was percutaneously retrieved. Our images allowed early noninvasive therapy and emphasize the need for echocardiographic follow-up early after implantation. © 2010 Wiley-Liss, Inc.