scholarly journals Intraoperative evaluation of vascular anastomosis during penile revascularization surgery by near-infrared indocyanine green videoangiography

2020 ◽  
Vol 19 ◽  
pp. e2413
Author(s):  
Y. Kawanishi ◽  
K. Izumi ◽  
H. Muguruma ◽  
M. Yamanaka ◽  
S. Kawanishi
Keyword(s):  
Indocyanine Green ◽  
Near Infrared ◽  
Vascular Anastomosis ◽  
Indocyanine Green Videoangiography ◽  
Intraoperative Evaluation ◽  
Penile Revascularization ◽  
Revascularization Surgery

scholarly journals Quantitative Analysis of Near-Infrared Indocyanine Green Videoangiography for Predicting Functional Outcomes After Spinal Intramedullary Ependymoma Resection

2019 ◽  
Vol 17 (5) ◽  
pp. 531-539 ◽  
Author(s):  
Hironori Arima ◽  
Kentaro Naito ◽  
Toru Yamagata ◽  
Shinichi Kawahara ◽  
Kenji Ohata ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Quantitative Analysis ◽  
Indocyanine Green ◽  
Functional Outcomes ◽  
Near Infrared ◽  
Peak Time ◽  
Functional Grade ◽  
Indocyanine Green Videoangiography ◽  
Peak Intensity ◽  
Ventral Spinal Cord

Abstract BACKGROUND One of the most critical steps in surgery for spinal intramedullary ependymomas is the resection of small feeding arteries from the anterior spinal artery with anatomical preservation of the normal circulation of the ventral spinal cord. OBJECTIVE To quantitatively analyze the microcirculation of the ventral spinal cord by near-infrared indocyanine green videoangiography (ICG-VA) after the spinal intramedullary ependymoma resection. METHODS This retrospective study included 12 patients (7 male and 5 female; average age 55.2 years, range 36-79 years). Patients’ neurological conditions were assessed based on the modified McCormick functional schema of grade 1 (neurologically normal) to 5 (severe deficit). Postoperative functional assessment was conducted at least 3 months after surgery. Quantitative analysis of vascular flow dynamics was carried out following spinal intramedullary ependymoma resection. Fluorescence intensities were measured and the indocyanine green (ICG) intensity-time curves were analyzed and compared with the functional outcomes after surgery. RESULTS Microscopically total or subtotal resection of the intramedullary ependymoma was achieved in all cases. Average peak time on ICG-VA was significantly shorter in the postoperative functional grade 1 to 2 group than in the postoperative functional grade 3 to 5 group, but there was no significant difference in average peak intensity between the 2 groups. Postoperative functional grade and the peak time of ICG, but not peak intensity, appeared correlated. CONCLUSION To the best of our knowledge, this is the first report showing that quantitative analysis of ICG-VA may predict functional outcomes after spinal intramedullary ependymoma resection.

scholarly journals The role of microscope-integrated near-infrared indocyanine green videoangiography in the surgical treatment of intracranial dural arteriovenous fistulas

2015 ◽  
Vol 122 (4) ◽  
pp. 876-882 ◽  
Author(s):  
Harjot Thind ◽  
Douglas A. Hardesty ◽  
Joseph M. Zabramski ◽  
Robert F. Spetzler ◽  
Peter Nakaji
Keyword(s):  
Indocyanine Green ◽  
Near Infrared ◽  
False Negative ◽  
False Negative Rate ◽  
Indocyanine Green Videoangiography ◽  
Surgical Ligation ◽  
Arteriovenous Fistulas ◽  
Negative Rate ◽  
Independent Form ◽  
Complete Obliteration

OBJECT The successful treatment of an intracranial dural arteriovenous fistula (dAVF) requires complete obliteration of blood flow through the fistulous point. Surgical ligation is often used along with endovascular techniques. Digital subtraction angiography (DSA) can be used to confirm fistula obliteration; however, this technique can be cumbersome intraoperatively and difficult to correlate anatomically with the surgical field. Near-infrared indocyanine green (ICG) videoangiography has been described as a complementary tool for this purpose. METHODS The authors examined intracranial dAVF cases in which microscope-integrated intraoperative ICG videoangiography was used to identify and/or confirm obliteration of the dAVF during surgery. Retrospective evaluation of all intracranial dAVF cases treated with surgical ligation over a 10-year period at the Barrow Neurological Institute (n = 47) revealed 28 cases in which ICG videoangiography was used. The results were compared with findings on preoperative and intraoperative or postoperative DSA. RESULTS ICG videoangiography successfully confirmed the fistulous point intraoperatively in 96% (22/23) of the cases. It also revealed complete obliteration of fistulas, comparable to intraoperative or postoperative DSA, in 91% (21/23) of the cases. The false-negative rate of ICG was 8.7% (2/23), which is similar to the false-negative rate of intraoperative DSA alone (10.5% [2/19]). CONCLUSIONS Microscope-based ICG videoangiography provides real-time information about the intraoperative anatomy of dAVFs. In addition, it can confirm complete obliteration of a fistula. This technique may be useful during dAVF surgery as an independent form of angiography or as an adjunct to intraoperative or postoperative DSA.

The Impact of Microscope-Integrated Intraoperative Near-Infrared Indocyanine Green Videoangiography on Surgery of Arteriovenous Malformations and Dural Arteriovenous Fistulae

Neurosurgery ◽  
2010 ◽  
Vol 67 (4) ◽  
pp. 1094-1104 ◽  
Author(s):  
Daniel Hänggi ◽  
Nima Etminan ◽  
Hans-Jakob Steiger
Keyword(s):  
Indocyanine Green ◽  
Arteriovenous Malformations ◽  
Near Infrared ◽  
Early Passage ◽  
Indocyanine Green Videoangiography ◽  
Additional Tool ◽  
Additional Information ◽  
Arteriovenous Fistulas ◽  
Venous Phase ◽  
The Impact

Abstract BACKGROUND: Microscope-based intraoperative near-infrared indocyanine green (ICG) videoangiography is useful as an adjunct to intra- or postoperative digital subtraction angiography (DSA) in aneurysm surgery. OBJECTIVE: To evaluate intraoperative ICG videoangiography for surgery of arteriovenous malformations (AVMs) and dural arteriovenous fistulas (dAVFs). METHODS: Seventeen patients undergoing surgical resection of intracranial AVM or AVF were enrolled into this prospective evaluation. ICG videoangiography sequences were analyzed with regard to transit times to differentiate between arterial, early venous, capillary, and venous phase as well as early passage (fistula) and delayed appearance (ischemia). ICG videoangiography was compared with pre- and postoperative angiography. RESULTS: Forty-six ICG videoangiographies were performed in 17 operative procedures. In 41 ICG investigations image quality and spatial resolution were excellent to analyze arterial, early venous, capillary, and venous phase. In 2 cases ICG videoangiography provided additional information to change the surgical strategy. With the exception of one case only, the postoperative angiogram corresponded to the last ICG examination performed after the resection. No side effects related to ICG injection were observed. In one patient with a deep thalamic AVM the final ICG investigation was inconclusive owing to insufficient illumination of the deep surgical field. CONCLUSION: Microscope-integrated repetitive ICG videoangiography during AVM and dAVF surgery is fast, easy to perform, and safe. This simple and safe real-time method is a useful additional tool that can potentially lower the surgical risk in complex AVMs and help avoid missed residuals.

Near-infrared indocyanine green videoangiography for assessment of carotid endarterectomy

2011 ◽  
Vol 153 (8) ◽  
pp. 1641-1644 ◽  
Author(s):  
Sei Haga ◽  
Shinji Nagata ◽  
Ai Uka ◽  
Yojiro Akagi ◽  
Yasuhiro Hamada ◽  
...  
Keyword(s):  
Indocyanine Green ◽  
Carotid Endarterectomy ◽  
Near Infrared ◽  
Indocyanine Green Videoangiography

Intraoperative control of extracranial—intracranial bypass patency by near-infrared indocyanine green videoangiography

2005 ◽  
Vol 102 (4) ◽  
pp. 692-698 ◽  
Author(s):  
Johannes Woitzik ◽  
Peter Horn ◽  
Peter Vajkoczy ◽  
Peter Schmiedek
Keyword(s):  
Indocyanine Green ◽  
Ct Angiography ◽  
Bypass Surgery ◽  
Near Infrared ◽  
Bypass Graft ◽  
High Flow ◽  
Indocyanine Green Videoangiography ◽  
Content Type ◽  
Bypass Patency ◽  
Fine Print

Object. Recently, intraoperative fluorescence angiography in which indocyanine green (ICG) is used as a tracer has been introduced as a novel technique to confirm successful aneurysm clipping. The aim of the present study was to assess whether ICG videoangiography is also suitable for intraoperative confirmation of extracranial—intracranial bypass patency. Methods. Forty patients undergoing cerebral revascularization for hemodynamic cerebral ischemia (11 patients), moyamoya disease (18 patients), or complex intracranial aneurysms (11 patients) were included. Superficial temporal artery (STA)—middle cerebral artery (MCA) bypass surgery was performed 35 times in 30 patients (five patients with moyamoya underwent bilateral procedures), STA—posterior cerebral artery bypass surgery in two patients, and saphenous vein (SV) high-flow bypass surgery in eight patients. In each patient, following the completion of the anastomosis, ICG (0.3 mg/kg body weight) was given systemically via an intravenous bolus injection. A near-infrared light emitted by laser diodes was used to illuminate the operating field and the intravascular fluorescence was recorded using an optical filter—equipped video camera. The findings of ICG videoangiography were compared with those of postoperative digital subtraction (DS) or computerized tomography (CT) angiography. In all cases excellent visualization of cerebral arteries, the bypass graft, and brain perfusion was noted. Indocyanine green videoangiography was used to identify four nonfunctioning STA—MCA bypasses, which could be revised successfully in all cases. In two cases of SV high-flow bypasses, ICG videoangiography revealed stenosis at the proximal anastomotic site, which was also revised successfully. In all cases the final findings of ICG videoangiography could be positively validated during the postoperative course by performing DS or CT angiography. Conclusions. Indocyanine green videoangiography provides a reliable and rapid intraoperative assessment of bypass patency. Thus, ICG videoangiography may help reduce the incidence of early bypass graft failure.

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