Preliminary Clinical Microneurosurgical Experience With the 4K3-Dimensional Microvideoscope (ORBEYE) System for Microneurological Surgery: Observation Study

Murai, Yasuo; Sato, Shun; Yui, Kanako; Morimoto, Daijiro; Ozeki, Tomohiro; Yamaguchi, Masahiro; Tateyama, Kojiro; Nozaki, Toshiki; Tahara, Shigeyuki; Yamaguchi, Fumio; Morita, Akio

doi:10.1093/ons/opy277

Cited by 71 publications

(97 citation statements)

References 17 publications

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“…Recently, the exoscope has been proposed as an alternative to the microscope in the field of neurosurgery. [1][2][3][4][5][26][27][28][29][30][31][32] One of the merits of exoscopes, including ORBEYE, is that they are superior to microscopes in terms of ergonomic features. The advantage of our method mainly depends on the excellence of the ergonomic operability.…”

Section: Discussionmentioning

confidence: 99%

“…The usefulness of exoscopes, including ORBEYE (Olympus, Tokyo, Japan), which was recently introduced into neurosurgery, has been reported in several fields. [1][2][3][4] One of their merits is that they are superior to a conventional microscope in terms of ergonomic features. They do not limit the posture of the operator regardless of the angle of the operative visual axis, and we previously reported that ORBEYE facilitates ergonomic microsurgery with the angle of the operative visual axis approximately horizontal.…”

Section: Introductionmentioning

confidence: 99%

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Retrosigmoid Approach in the Supine Position Using ORBEYE: A Consecutive Series of 14 Cases

Shimizu

Toyota

Nakagawa

et al. 2020

Neurol. Med. Chir.(Tokyo)

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One of the merits of recently introduced exoscopes, including ORBEYE, is that they are superior to a conventional microscope in terms of ergonomic features. Taking advantage of it, the retrosigmoid approach can be performed in the supine position using ORBEYE. We report a consecutive series of 14 operations through the retrosigmoid approach in the supine position using ORBEYE. Fourteen consecutive patients who underwent surgery through the retrosigmoid approach for cerebellopontine (CP) angle lesions in the supine position using ORBEYE were targeted, and surgical outcomes and complications were examined. We evaluated the posture of the operator and the surgical field during this approach compared with those using a conventional microscope. In all 14 cases, all operative procedures were accomplished only using the ORBEYE. There were no operative complications due to this approach. Using ORBEYE, even when the angle of the operative visual axis was horizontal, the operators could manipulate in a comfortable posture. They were not forced to be in an uncomfortable posture that extended their arms, as is often the case with a conventional microscope. Therefore, they could use shorter surgical instruments. As the cerebellum shifted downward with gravity even using slight retraction during this approach, the working space of the surgical field was easily secured. Through this approach, the operators can perform stable microsurgery of CP angle lesions in a comfortable posture. This approach can reduce the burden on the operator and the patient, leading to a refined surgical procedure.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Retrosigmoid Approach in the Supine Position Using ORBEYE: A Consecutive Series of 14 Cases

Shimizu

Toyota

Nakagawa

et al. 2020

Neurol. Med. Chir.(Tokyo)

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“…As shown in Table 2, there are increasing reports using digital microscope with 4K-3D camera since 2018 [2,10,11]. However, video microscopes with conventional 2K-3D cameras are still currently reported [12,13,14,15,16,17,18,19]. Notably, our report was the first utilizing a video microscope with 8K-UHD camera.…”

Section: Discussionmentioning

confidence: 79%

Mechanism and design of a novel 8K ultra-high-definition video microscope for microsurgery

Yamashita

Kobayashi

2021

Heliyon

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The practical application of microscopes using 8K ultra-high definition (UHD) technology is progressing. However, due to insufficiencies in factors such as luminous intensity and stereopsis, it has not been possible to achieve sufficient image quality for close observation of submillimeter order microlymphatic anastomosis using a combination of 8K-UHD cameras with a rigid endoscope. We have improved the quality of microsurgery by the introduction of a new heads up 8K-UHD surgical system. Herein, we show the mechanisms of this next-generation technology that makes optical improvements to the electronic image input data, resolving the initial drawback. We have developed a new 8K-UHD digital microscope system with digital zooming to enable maximum 300X magnification of the surgical field. This system has specific lighting settings for shadows dropped in surgical field to expand the three-dimensional effect while still being a monocular camera. The original mechanism and design enable the increase of the depth of field with optimal angles between the imaging direction and approaching direction towards the surgical field. Assessment during a pre-clinical trial using rats demonstrated that it is possible to perform microlymphatic anastomosis in a heads-up position with a 70-inch 8K-UHD monitor and the 8K-UHD monocular camera system. Performing supermicrosurgery is difficult with conventional surgical microscopes. Our results illustrate the application of this new 8K-UHD microscope system to this new field.

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“…More recently, the high-definition exoscope has been reported as a novel instrumentation. 19) While few reports have described the use of such devices in CEA, their use seems likely to increase.…”

Section: Microsurgical Dissection Of the Carotid Artery Using Mini-homentioning

confidence: 99%

Surgical Technique for Carotid Endarterectomy: Current Methods and Problems

Uno

Takai

Yagi

et al. 2020

Neurol. Med. Chir.(Tokyo)

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Over the last 60 years, many reports have investigated carotid endarterectomy (CEA) and techniques have thus changed and improved. In this paper, we review the recent literature regarding operational maneuvers for CEA and discuss future problems for CEA. Longitudinal skin incision is common, but the transverse incision has been reported to offer minimal invasiveness and better cosmetic effects for CEA. Most surgeons currently use microscopy for dissection of the artery and plaque. Although no monitoring technique during CEA has been proven superior, multiple monitors offer better sensitivity for predicting postoperative neurological deficit. To date, data are lacking regarding whether routine shunt or selective shunt is better. Individual surgeons thus need to select the method with which they are more comfortable. Many surgical techniques have been reported to obtain distal control of the internal carotid artery in patients with high cervical carotid bifurcation or high plaque, and minimally invasive techniques should be considered. Multiple studies have shown that patch angioplasty reduces the risks of stroke and restenosis compared with primary closure, but few surgeons in Japan have been performing patch angioplasty. Most surgeons thus experience only a small volume of CEAs in Japan, so training programs and development of in vivo training models are important.

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Preliminary Clinical Microneurosurgical Experience With the 4K3-Dimensional Microvideoscope (ORBEYE) System for Microneurological Surgery: Observation Study

Cited by 71 publications

References 17 publications

Retrosigmoid Approach in the Supine Position Using ORBEYE: A Consecutive Series of 14 Cases

Retrosigmoid Approach in the Supine Position Using ORBEYE: A Consecutive Series of 14 Cases

Mechanism and design of a novel 8K ultra-high-definition video microscope for microsurgery

Surgical Technique for Carotid Endarterectomy: Current Methods and Problems

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