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Randomized controlled trial in which two different laparoscopic systems: standard 2D and Olympus VISERA Elite II 3D will be compared in terms of laparoscopic skills, length of surgery, intraoperative complications and surgeon's fatigue in a group of senior surgeons and senior residents will be measured when performing laparoscopic Roux-en-Y gastric bypass.
The introduction of minimally invasive surgery has faced the surgeon with some difficulties that were not present in traditional open surgery. The foremost disadvantage of laparoscopy is the loss of depth perception in 2-dimensional (2D) vision while having to operate in a 3-dimensional (3D) space.
Minimally invasive surgery has become the standard approach for most of the abdominal surgical procedures. It is associated with less surgical trauma, faster recovery, shorter hospital stay and better cosmetic results. These advantages have led laparoscopic skills to become a basic competence for general surgery programs. Advanced laparoscopic surgery involves a long learning curve, including demanding minimally invasive skills such as intracorporeal suturing and knot tying.
Video quality is critical for an accurate training. This is especially important for advanced laparoscopic skills training, where high-definition cameras are needed. HD imaging has been shown to provide subjectively improved image for visualization and to improve surgical task performance.
Some authors have investigated the effect of laparoscopic 3-dimensional view, and have demonstrated an improvement in speed, efficiency, optics and handling as well as surgeon's subjective assessment. Moreover, 3D systems have been demonstrated to provide better optical visualization that allows simpler presentation of anatomical structures, which can decrease intraoperative errors and postoperative morbidity secondary to visual distortions and may reduce postoperative fatigue of the surgeon.
The hypothesis of the study is that the length of surgery is reduced with the use of 3D laparoscopic systems compared with 2D laparoscopic systems, the reduction on the length of surgery will be higher on the training surgeons compared with the senior surgeons, and that the use of 3D laparoscopic systems reduces the postoperative fatigue of the surgeons.
In this study a group of full-trained surgeons and of 4th and 5th year General Surgery Residents performing laparoscopic Roux-en-Y Gastric Bypass will be randomized into the use of 2D standard laparoscopic optics or 3D laparoscopic optics.
3D Optic System (Olympus VISERA Elite II 3D)
Not yet recruiting
Hospital Clinic of Barcelona
Published on BioPortfolio: 2019-12-10T01:21:19-0500
The purpose of this research study is to compare the effectiveness and efficiency of using a sterile sheath (EndoSheath®) during cystoscopy versus a standard scope.
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This prospective, post-market, open label clinical study is designed to measure the posterolateral fusion rate at 24 months post operative in subjects who have undergone a posterolateral f...
Regeneration of optic nerve axons after injury can be facilitated by several approaches, but misguidance at the optic chiasm is often observed. We characterized guidance cues in the embryonic visual s...
To develop a preoperative calculator to predict operative time for robotic-assisted laparoscopic myomectomy (RALM).
The prediction of a difficult cholecystectomy has traditionally been based on certain pre-operative clinical and imaging factors. Most of the previous literature reported small patient cohorts and hav...
Although it is a commonly held belief that stretching of the optic nerve is important in dysthyroid optic neuropathy (DON), it is probably mainly due to microvascular ischemia arising from high pressu...
The present study investigated longitudinally the performance development of a multigenerational sample of competitive swimmers. The aim of the study was to provide unique insight into the junior towa...
Conditions which produce injury or dysfunction of the second cranial or optic nerve, which is generally considered a component of the central nervous system. Damage to optic nerve fibers may occur at or near their origin in the retina, at the optic disk, or in the nerve, optic chiasm, optic tract, or lateral geniculate nuclei. Clinical manifestations may include decreased visual acuity and contrast sensitivity, impaired color vision, and an afferent pupillary defect.
Intraoperative computer-assisted 3D navigation and guidance system generally used in neurosurgery for tracking surgical tools and localize them with respect to the patient's 3D anatomy. The pre-operative diagnostic scan is used as a reference and is transferred onto the operative field during surgery.
Atrophy of the optic disk which may be congenital or acquired. This condition indicates a deficiency in the number of nerve fibers which arise in the RETINA and converge to form the OPTIC DISK; OPTIC NERVE; OPTIC CHIASM; and optic tracts. GLAUCOMA; ISCHEMIA; inflammation, a chronic elevation of intracranial pressure, toxins, optic nerve compression, and inherited conditions (see OPTIC ATROPHIES, HEREDITARY) are relatively common causes of this condition.
The 2nd cranial nerve. The optic nerve conveys visual information from the retina to the brain. The nerve carries the axons of the retinal ganglion cells which sort at the optic chiasm and continue via the optic tracts to the brain. The largest projection is to the lateral geniculate nuclei; other important targets include the superior colliculi and the suprachiasmatic nuclei. Though known as the second cranial nerve, it is considered part of the central nervous system.
The duration of a surgical procedure in hours and minutes.
Surgery is a technology consisting of a physical intervention on tissues. All forms of surgery are considered invasive procedures; so-called "noninvasive surgery" usually refers to an excision that does not penetrate the structure being exci...