New Device for Endoscopic Image Display During Microsurgical Clipping of Cerebral Aneurysms-Technical Note-

Hiramatsu, Kenichiro; Inui, Takuo; Okada, Masato; Takeshima, Toshikazu; Mishima, Hideaki; Sakaki, Toshisuke; Shiono, Satoru

doi:10.2176/nmc.45.487

Cited by 3 publications

(3 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Conversely, sometimes even a partial clipping excludes the aneurysm from the circulation. Recent utilization of endoscopic ICG-VA may compensate for these shortcomings to some extent[ 28 29 30 ] because it shows not only the external anatomy of the vessels but also the blood flow inside them.…”

Section: Discussionmentioning

confidence: 99%

“…[10,31] Furthermore, Hiramatsu et al introduced a new endoscopic image display attached to the microscope eyepieces that allows the chief surgeon to watch both endoscopic and microscopic views almost simultaneously. [29] We would like to videotape the endoscopic images rather than use either of the mentioned methods. The endoscopy is monitored by the assistant, and on its completion, the chief surgeon reviews the video if needed.…”

Section: Limitations and Complicationsmentioning

confidence: 99%

See 1 more Smart Citation

Role of endoscopy in multi-modality monitoring during aneurysm surgery: A single center experience with 175 consecutive unruptured aneurysms

et al. 2015

View full text Add to dashboard Cite

Objective and Background:Unruptured aneurysm surgery is a challenge to all vascular neurosurgeons as the patient is asymptomatic and no even slight neurological deficits should be expected postoperatively. To this aim, multi-modality checking of the vessels during the surgery is highly recommended to assure of the patency of the parent and perforator arteries next to an aneurysm. In this paper, we present our experience in the last 1.5 years with emphasis on the role of endoscope assisted microsurgery.Methods:One hundred and seventy-five patients with unruptured intracranial aneurysms were operated in our institute in the last 1½ years. All patients underwent endoscope assisted microsurgery with pre- and post-clipping indocyanine green angiography. In selected cases, motor evoked potential monitoring was implemented.Results:No mortality was observed in this period, and only 6 patients (3.4%) suffered new permanent neurological deficits postoperatively. Our illustrative cases show how endoscopy may help the surgeon to visualize hidden vessels behind and medial to an aneurysm.Conclusions:Our results indicated that multi-modality monitoring during unruptured aneurysm surgeries is associated with excellent outcome. Endoscope is able to show blind corners during aneurysm surgery which cannot be routinely observed with microscope and its application in aneurysm surgery assists the surgeon to make certain of complete neck clipping and preservation of perforating arteries around the aneurysm.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Limitations and Complicationsmentioning

confidence: 99%

Role of endoscopy in multi-modality monitoring during aneurysm surgery: A single center experience with 175 consecutive unruptured aneurysms

et al. 2015

View full text Add to dashboard Cite

show abstract

“…For these reasons, we have studied a system to observe microscopic images through the ocular system of the microscope and endoscopic images on a high resolution 7-inch LCD screen, placed above the ocular system, to obtain a simultaneous view by a simple gaze movement (18–20) (Figure 2). However, the learning curve of these procedures requires optimal knowledge of surgical anatomy and of endoscopic anatomy.…”

Section: Discussionmentioning

confidence: 99%

Endoscope-Assisted Microneurosurgery for Intracranial Aneurysms

et al. 2013

View full text Add to dashboard Cite

Background: The endovascular techniques has widely changed the treatment of intracranial aneurysms. However surgery still represent the best therapeutic option in case of broad-based and complex lesions. The combined use of endoscopic and microsurgical techniques (EAM) may improve surgical results.Objective: The purpose of our study is to evaluate the advantages and limits of EAM for intracranial aneurysms.Methods: Between January 2002 and December 2012, 173 patients, harboring 206 aneurysms were surgically treated in our department with the EAM technique. One hundred and fifty-seven aneurysms were located in the anterior circulation and 49 were in the posterior circulation. Standard tailored approaches, based on skull base surgery principles, were chosen. The use of the endoscope included three steps: initial inspection, true operative time, and final inspection. For each procedure, an intraoperative video and an evaluation schedule were prepared, to report surgeons’ opinions about the technique itself. In the first cases, we always used the endoscope during surgical procedures in order to get an adequate surgical training. Afterwards we became aware in selecting cases in which to apply the endoscopy, as we started to become familiar with its advantages and limits.Results: After clipping, all patients were undergone postoperative cerebral angiography. No surgical mortality related to EAM were observed. Complications directly related to endoscopic procedures were rare.Conclusion: Our retrospective study suggests that endoscopic efficacy for aneurysms is only scarcely influenced by the preoperative clinical condition (Hunt–Hess grade), surgical timing, presence of blood in the cisterns (Fisher grade) and/or hydrocephalus. However the most important factors contributing to the efficacy of EAM are determined by the anatomical locations and sizes of the lesions. Furthermore, the advantages are especially evident using dedicated scopes and holders, after an adequate surgical training to increase the learning curve.

show abstract

Differential effects of head-mounted displays on visual performance

et al. 2013

View full text Add to dashboard Cite

Head-mounted displays (HMDs) virtually augment the visual world to aid visual task completion. Three types of HMDs were compared [look around (LA); optical see-through with organic light emitting diodes and virtual retinal display] to determine whether LA, leaving the observer functionally monocular, is inferior. Response times and error rates were determined for a combined visual search and Go-NoGo task. The costs of switching between displays were assessed separately. Finally, HMD effects on basic visual functions were quantified. Effects of HMDs on visual search and Go-NoGo task were small, but for LA display-switching costs for the Go-NoGo-task the effects were pronounced. Basic visual functions were most affected for LA (reduced visual acuity and visual field sensitivity, inaccurate vergence movements and absent stereo-vision). LA involved comparatively high switching costs for the Go-NoGo task, which might indicate reduced processing of external control cues. Reduced basic visual functions are a likely cause of this effect.

show abstract

New Device for Endoscopic Image Display During Microsurgical Clipping of Cerebral Aneurysms-Technical Note-

Cited by 3 publications

References 8 publications

Role of endoscopy in multi-modality monitoring during aneurysm surgery: A single center experience with 175 consecutive unruptured aneurysms

Role of endoscopy in multi-modality monitoring during aneurysm surgery: A single center experience with 175 consecutive unruptured aneurysms

Endoscope-Assisted Microneurosurgery for Intracranial Aneurysms

Differential effects of head-mounted displays on visual performance

Contact Info

Product

Resources

About