scholarly journals Hemodynamic changes in superficial arteriovenous malformation surgery measured by intraoperative ICG fluorescence videoangiography with FLOW 800 software

2020 ◽  
Vol 6 (1) ◽  
Author(s):  
Xun Ye ◽  
Liang Wang ◽  
Ming-tao Li ◽  
Xiao-lin Chen ◽  
Hao Wang ◽  
...  
Keyword(s):  
Arteriovenous Malformation ◽  
Hemodynamic Changes ◽  
Flow 800

scholarly journals Hemodynamic changes in superficial arteriovenous malformation surgery measured by intraoperative ICG fluorescence videoangiography with FLOW 800 software

2020 ◽  
Author(s):  
Xun Ye ◽  
Liang Wang ◽  
Ming-tao Li ◽  
Xiao-lin Chen ◽  
Hao Wang ◽  
...  
Keyword(s):  
Arteriovenous Malformation ◽  
Hemodynamic Parameter ◽  
Maximum Intensity ◽  
Parameter Analysis ◽  
Hemodynamic Parameters ◽  
Hemodynamic Changes ◽  
Transit Times ◽  
Icg Angiography ◽  
Local Cycle ◽  
Flow 800

Abstract To analyze the application of intraoperative indocyanine green (ICG) angiography with FLOW 800 software in arteriovenous malformation (AVM) surgeries. Data on 17 patients undergoing surgery with ICG fluorescence were collected. To analyze the hemodynamic features of AVM and the influence on the peripheral cortex of AVM resection, we assessed the following hemodynamic parameters: maximum intensity, slope of rise, time to half-maximal fluorescence, and transit time from arteries to veins. In the 17 superficial AVMs studied, the time delay color mode of FLOW 800 software was superior to the traditional playback mode for identifying feeding arteries, draining veins, and their relation to normal cortical vessels.The maximum fluorescence intensity and slope of the ICG fluorescence curve of feeder arteries and draining veins were higher than those of normal peripheral vessels (P < 0.05). The transit times in AVMs were significantly shorter than those in normal peripheral vessels (P < 0.05).After AVM resection, cerebral flow increased in the cortex, and local cycle time become longer, although the differences were not significant (P > 0.05). Hemodynamic parameter analysis provided quality guidance for the resection of AVMs and could also be used in estimating changes in blood flow in the local cortex to identify abnormal hyperperfusion and residual nidus.

scholarly journals Hemodynamic changes in superficial arteriovenous malformation surgery measured by intraoperative ICG fluorescence videoangiography with FLOW 800 software

2020 ◽  
Author(s):  
Xun Ye ◽  
Liang Wang ◽  
Ming-tao Li ◽  
Xiao-lin Chen ◽  
Hao Wang ◽  
...  
Keyword(s):  
Arteriovenous Malformation ◽  
Hemodynamic Parameter ◽  
Maximum Intensity ◽  
Parameter Analysis ◽  
Hemodynamic Parameters ◽  
Hemodynamic Changes ◽  
Transit Times ◽  
Local Cycle ◽  
Flow 800

Abstract Background: Arteriovenous malformation(AVM) have long-term “blood stealing” characteristics, which result in complicated hemodynamic features. To analyze the application of intraoperative indocyanine green angiography with FLOW 800 software in AVM surgeries.Methods: Data on 17 patients undergoing surgery with ICG fluorescence were collected. To analyze the hemodynamic features of AVM and the influence on the peripheral cortex of AVM resection, we assessed the following hemodynamic parameters: maximum intensity, slope of rise, time to half-maximal fluorescence, and transit time from arteries to veins.Results：In the 17 superficial AVMs studied, the time delay color mode of FLOW 800 software was superior to the traditional playback mode for identifying feeding arteries, draining veins, and their relation to normal cortical vessels.The maximum fluorescence intensity and slope of the ICG fluorescence curve of feeder arteries and draining veins were higher than those of normal peripheral vessels (P < 0.05). The transit times in AVMs were significantly shorter than those in normal peripheral vessels (P < 0.05).After AVM resection, cerebral flow increased in the cortex, and local cycle time become longer, although the differences were not significant (P > 0.05).Conclusions:Hemodynamic parameter analysis provided quality guidance for the resection of AVMs and could also be used in estimating changes in blood flow in the local cortex to identify abnormal hyperperfusion and residual nidus.

FLOW 800-assisted surgery for arteriovenous malformation

2011 ◽  
Vol 18 (11) ◽  
pp. 1556-1557 ◽  
Author(s):  
Sukhdeep S. Jhawar ◽  
Yoko Kato ◽  
Junpei Oda ◽  
Daikichi Oguri ◽  
Hirotoshi Sano ◽  
...  
Keyword(s):  
Arteriovenous Malformation ◽  
Flow 800

Occlusive Hyperemia: A Radiosurgical Phenomenon?

Neurosurgery ◽  
2000 ◽  
Vol 47 (5) ◽  
pp. 1178-1184 ◽  
Author(s):  
Bruce E. Pollock
Keyword(s):  
Arteriovenous Malformation ◽  
Radiation Injury ◽  
Postoperative Bleeding ◽  
Cyst Formation ◽  
Venous Hypertension ◽  
Neurological Deficits ◽  
Hemodynamic Changes ◽  
Venous Outflow ◽  
The Brain ◽  
Clinical Worsening

Abstract OBJECTIVE Causes of neurological deficits after arteriovenous malformation (AVM) radiosurgery, including hemorrhage, radiation injury, and delayed cyst formation, are described. CONCEPT Occlusive hyperemia has been described as a reason for neurological deterioration after AVM resection. Thrombosis of draining veins or dural sinuses is thought to cause postoperative bleeding or neurological deficits secondary to venous hypertension. In a similar manner, local hemodynamic changes can occur in the brain adjacent to an AVM after radiosurgery if venous outflow is obstructed. Two patients are presented whose cases demonstrate this phenomenon. CONCLUSION Patients can experience clinical worsening after AVM radiosurgery from premature thrombosis of draining veins. Local hemodynamic changes could explain why imaging changes thought to be radiation related occur more frequently after radiosurgery of AVMs than of tumors.

The Hemodynamic Changes of Alcohol Sclerotherapy in Patients with Congenital Peripheral Arteriovenous Malformation

1998 ◽  
Vol 35 (6) ◽  
pp. 1161 ◽  
Author(s):  
Mi Sook Gwak ◽  
Hyun Sung Cho ◽  
Yu Hong Kim ◽  
Seung Jae Kim ◽  
Ji Ae Kim ◽  
...  
Keyword(s):  
Arteriovenous Malformation ◽  
Hemodynamic Changes

Intracranial Arteriovenous Malformations Associated with Aneurysms

Neurosurgery ◽  
1986 ◽  
Vol 18 (1) ◽  
pp. 29-35 ◽  
Author(s):  
Hunt Batjer ◽  
Richard A. Suss ◽  
Duke Samson
Keyword(s):  
Intracranial Aneurysm ◽  
Arteriovenous Malformation ◽  
Intracranial Hemorrhage ◽  
Arteriovenous Malformations ◽  
Surgical Care ◽  
Feeding System ◽  
Intracranial Arteriovenous Malformations ◽  
Hemodynamic Changes ◽  
Feeding Vessels ◽  
Microsurgical Resection

Abstract The presence of intracranial aneurysm in association with arteriovenous malformation has been well documented. Aneurysms have been described in typical proximal sites along the feeding system to the arteriovenous malformation, in abnormal distal locations along feeding vessels, and in sites remote and apparently hemodynamically unrelated to the arteriovenous malformation. Little attention has been focused on the most appropriate medical and surgical care of patients harboring these lesions. Since 1977, 22 patients with this combination of lesions have been evaluated at our institution. Nine patients (41%) presented after intracranial hemorrhage. The remaining 13 patients were investigated because of seizures in 5 patients (23%), headaches in 4 patients (18%), and progressive ischemia in 4 patients (18%). Among the patients suffering intracranial hemorrhage, 78% had bled from an aneurysm, with 22% having hemorrhaged from their arteriovenous malformation. All 7 of the patients who suffered aneurysmal hemorrhage bled from atypical distal aneurysms on major feeding vessels. Our experience and that of others has led us to believe that the safest approach to patients with this combination of lesions is to treat the aneurysm before microsurgical resection of the associated arteriovenous malformation. Hemodynamic changes associated with the abrupt elimination of an arteriovenous malformation may place associated aneurysms at immediate risk.

Scalp Arteriovenous Malformation Draining into the Superior Sagittal Sinus Associated with an Intracranial Arteriovenous Malformation: Just a Coincidence? Case Report

Neurosurgery ◽  
2003 ◽  
Vol 52 (2) ◽  
pp. 440-443 ◽  
Author(s):  
Giuseppe Lanzino ◽  
Emiliano Passacantilli ◽  
G. Michael Lemole ◽  
Cameron McDougall ◽  
Robert F. Spetzler
Keyword(s):  
Arteriovenous Malformation ◽  
Clinical Evidence ◽  
Clinical Observation ◽  
Superior Sagittal Sinus ◽  
Venous Pressure ◽  
Experimental Studies ◽  
Hemodynamic Changes ◽  
Intracranial Arteriovenous Malformation ◽  
Sagittal Sinus ◽  
Hemodynamic Characteristics

Abstract OBJECTIVE AND IMPORTANCE Recent experimental and clinical evidence suggests that hemodynamic changes in the venous system can induce the formation of new arteriovenous malformations (AVMs). In a rat model, increased venous pressure induces the formation of soft tissue and dural AVMs. We report a clinical observation that may support these data. CLINICAL PRESENTATION A 4-year-old boy with a midline scalp AVM draining into the superior sagittal sinus had an associated intracranial/parenchymal AVM. The cerebral AVM increased venous pressure in the superior sagittal sinus as revealed by angiography. INTERVENTION The scalp AVM was resected, and the intracranial AVM was treated by use of the gamma knife. CONCLUSION On the basis of reported experimental data and the morphological and hemodynamic characteristics in this patient's two lesions, we suggest that the scalp AVM might have been induced by hypertension in the superior sagittal sinus. This clinical observation supports the notion suggested by experimental studies that hemodynamic changes can induce the formation of associated AVMs.

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