Articles: surgery.
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J. Thorac. Cardiovasc. Surg. · Jan 2005
Comparative StudyEffect of sensory substitution on suture-manipulation forces for robotic surgical systems.
Direct haptic (force or tactile) feedback is not yet available in commercial robotic surgical systems. Previous work by our group and others suggests that haptic feedback might significantly enhance the execution of surgical tasks requiring fine suture manipulation, specifically those encountered in cardiothoracic surgery. We studied the effects of substituting direct haptic feedback with visual and auditory cues to provide the operating surgeon with a representation of the forces he or she is applying with robotic telemanipulators. ⋯ Sensory substitution, in the form of visual feedback, auditory feedback, or both, confers quantifiable advantages in applied force accuracy and consistency during the performance of a simple surgical task.
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Stud Health Technol Inform · Jan 2005
First clinical tests with the augmented reality system INPRES.
In this paper we present the results of the first patient experiment in craniofacial surgery of the INPRES system - an augmented reality system on the basis of a tracked see-through head-mounted display.
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Innovations (Phila) · Jan 2005
Thoracic epidural anesthesia for coronary bypass surgery affects autonomic neural function and arrhythmias.
: In recent years, the invasiveness of coronary reconstruction has been markedly reduced. Awake off-pump coronary artery bypass (AOCAB), coronary bypass surgery with thoracic epidural anesthesia (TEA) without general anesthesia and cardiopulmonary bypass), has been reported in the literature. Because the details of this technique are still unclear, we evaluated its usefulness by examining the autonomic neural state and the incidence of arrhythmia. ⋯ : In AOCAB, because there is no vagal inhibition, vagal dominance can be maintained after surgery. This may be associated with the lower incidence of postoperative atrial fibrillation in group A compared with group B. Further studies are necessary to evaluate the details of AOCAB.
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While both fluoroscopic and CT-guidance during cervical nerve root blocks have been well documented in the literature, the use of CT fluoroscopy (CTF) has not. CTF is well suited to provide imaging guidance during these procedures due to its combination of excellent anatomic detail, relatively low radiation dose and the ability to perform an initial dynamic contrast injection, and is a viable alternative to fluoroscopic guidance. Details of the technique along with the initial experience at one institution are presented.
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Acta Neurochir. Suppl. · Jan 2005
Clinical TrialSurgical radio-frequency epiduroscopy technique (R-ResAblator) and FBSS treatment: preliminary evaluations.
Failed back surgery syndrome represents a heterogeneous situation that suggests a fibrosis or neuroinflammatory genesis. The social cost related to this issue are enormous. Several surgical techniques have been applied to FBSS patients with controversial effectiveness. In 1998 we evaluated the efficiency and limits of epiduroscopy treatment; it proved to be effective in 75% of cases, but in 45% of cases it needed to be repeated after 12 months. Therefore we subjected 14 patients, who had previously experienced a short temporary benefit by using a traditional epiduroscopic approach, to a new epiduroscopy fibrolysis using a radio-frequency device named "R-Resablator Epiduroscopy". Clinical evaluation was performed before myeloscopy and after 1-3-6 months. After myeloscopy, 93% of patients reported a general improvement. Among the latter, pain was reduced by 90% in 8 patients, by 60-70% in 5, and by less than 30% in 1. ⋯ It can be concluded that RF-Epiduroscopy offers greater therapeutic benefit than traditional epiduroscopy or other surgical techniques. Furthermore, RF-Epiduroscopy is more easily performed and repeated.