1/14. Surgical treatment of internal carotid artery anterior wall aneurysm with extravasation during angiography--case report.A 54-year-old female presented subarachnoid hemorrhage from an aneurysm arising from the anterior (dorsal) wall of the internal carotid artery (ICA). During four-vessel angiography, an extravasated saccular pooling of contrast medium emerged in the suprasellar area unrelated to any arterial branch. The saccular pooling was visualized in the arterial phase and cleared in the venophase during every contrast medium injection. We suspected that the extravasated pooling was surrounded by hard clot but communicated with the artery. Direct surgery was performed but major premature bleeding occurred during the microsurgical procedure. After temporary clipping, an opening of the anterior (dorsal) wall of the ICA was found without apparent aneurysm wall. The vessel wall was sutured with nylon thread. The total occlusion time of the ICA was about 50 minutes. Follow-up angiography demonstrated good patency of the ICA. About 2 years after the operation, the patient was able to walk with a stick and to communicate freely through speech, although left hemiparesis and left homonymous hemianopsia persisted. The outcome suggests our treatment strategy was not optimal, but suture of the ICA wall is one of the therapeutic choices when premature rupture occurs in the operation.- - - - - - - - - - ranking = 1keywords = vessel (Clic here for more details about this article) |
2/14. Intraventricular contrast medium leakage during ethanol embolization of an arteriovenous malformation.We report the unusual phenomenon of abrupt intraventricular contrast medium leakage from the choroid plexus occurring during ethanol embolization of a periventricular arteriovenous malformation. There was no evidence of any associated intraventricular hemorrhage to suggest that leakage arose from a vessel perforation, as was first suspected. Intraventricular contrast medium leakage has been reported previously in the setting of ependymitis, and it is likely that similar pathogenetic mechanisms apply in this case. To our knowledge, this is the first reported case of intraventricular contrast medium leakage occurring during an embolization procedure.- - - - - - - - - - ranking = 0.5keywords = vessel (Clic here for more details about this article) |
3/14. Case report: indocyanine green dye leakage from retinal artery in branch retinal vein occlusion.BACKGROUND: Little is known about retinal vascular lesions underlying hemorrhage in the acute phase of branch retinal vein occlusion (BRVO). CASE: A 64-year-old woman presented with a decrease in visual acuity of ten-day duration in her left eye. OBSERVATIONS: At the initial examination, her left fundus showed the typical appearance of BRVO, including retinal bleeding and soft exudates in the lower half of the fundus, after the arteriovenous crossing. fluorescein angiography showed no detail in the retinal vessels, which were occluded by retinal bleeding. However, in the early phase of indocyanine green (ICG) angiography, ICG dye leaked from the retinal artery at a point proximal to the first bifurcation. In the late phase of ICG angiography, the dye pooled along the retinal artery in a fusiform fashion. One year after laser photocoagulation was performed in the area of the BRVO, ICG dye leakage from the retinal artery had completely disappeared. CONCLUSIONS: These findings suggest that the changes in the retina detected by ICG angiography may have been associated with the onset of BRVO. In patients with acute BRVO, ICG angiography may be used to evaluate retinal arterial lesions covered by hemorrhage and provide useful information.- - - - - - - - - - ranking = 0.5keywords = vessel (Clic here for more details about this article) |
4/14. Hypotensive hemorrhagic necrosis in basal ganglia and brainstem.Hypotensive hemorrhagic necrosis of the basal ganglia and brainstem has only occasionally been described. Three such cases are reported. Cardiac arrest had occurred in all cases, and it took at least 1 hour to restore adequate circulation. The patients remained comatose for 2 days to 2 weeks until death. Persistent hypotension causing ischemia in the distribution of deep perforating arteries is considered to have been the key underlying mechanism. Hemorrhage is thought to have been caused by extravasation of red blood cells through damaged blood vessels.- - - - - - - - - - ranking = 0.5keywords = vessel (Clic here for more details about this article) |
5/14. Extravasation of parenteral alimentation fluid into the renal pelvis--a complication of central venous catheter in a neonate.Many complications of central venous catheters, which include perforation of the vessel walls and extravasation of the infusate into pericardial, pleural, and peritoneal cavities, have been reported. We report an infant with a central venous catheter in inferior vena cava who experienced extravasation of parenteral alimentation fluid into the right renal pelvis secondary to perforation of the renal vein. To our knowledge, this rare complication has not been reported earlier.- - - - - - - - - - ranking = 0.5keywords = vessel (Clic here for more details about this article) |
6/14. rupture of an internal carotid artery aneurysm during angiography with leakage of contrast medium via an external ventricular drain.With a ruptured intracranial aneurysm producing subarachnoid haemorrhage (SAH) cerebral angiography is currently used for identification of the affected vessel. Aneurysm rerupturing is one of the more serious complications of cerebral angiography and has been frequently described. We report a 61-year-old man who presented with SAH who had rerupture of a large aneurysm of the internal carotid artery during angiography. A substantial amount of contrast medium escaped via a ventricular drain. The three main risk factors for rerupture of an aneurysm are: angiography performed within 6 h of the primary SAH, an aneurysm on the internal carotid artery and an unfavourable Glasgow coma score.- - - - - - - - - - ranking = 0.5keywords = vessel (Clic here for more details about this article) |
7/14. Acute laryngeal paralysis induced by the migration of a totally implantable venous access device's catheter tip.The authors report a case of acute vagus nerve paralysis that appeared during a course of chemotherapy. The drugs had been administered through a totally implantable venous access device (TIVAD), whose catheter tip had migrated into the right internal jugular vein (IJV) and was surrounded by a complete venous thrombosis. The supposed aetiology of this paralysis was a leakage of the cytotoxic drug (5-fluorouracil) from the vessel wall into the surrounding carotid space, because of the stagnation of the chemotherapeutic agent above the thrombosis. Four months after cessation of chemotherapy, the laryngeal paralysis was still evident.- - - - - - - - - - ranking = 0.5keywords = vessel (Clic here for more details about this article) |
8/14. Inadvertent embolization of a persistent sciatic artery in pelvis trauma.We describe a case of unilateral persistent sciatic artery (PSA), a rare vascular anomaly, in a 43-year-old woman with severe multiple trauma. A small amount of diluted embolization particles went into this vessel during emergent endovascular therapy under fluoroscopic monitoring. The procedure was immediately stopped when the true nature of the anatomic variant was recognized. Fortunately, an ischemic event of the lower leg did not occur. The imaging findings of computed tomography and digital subtraction angiography are presented and the relevant literature is reviewed.- - - - - - - - - - ranking = 0.5keywords = vessel (Clic here for more details about this article) |
9/14. Extravasation of intracranial aneurysm during computed tomography angiography: mimicking a blood vessel.Two cases of contrast media extravasation of a ruptured aneurysm during computed tomography angiography (CTA) are described. The contrast media extravasation appeared as a highly attenuated twisted ribbon-like structure originating from the aneurysmal dome, and this mimicked a vascular structure. Because rebleeding of an aneurysm is accompanied by disastrous consequences, it is important to understand the imaging feature of active bleeding on CTA.- - - - - - - - - - ranking = 2keywords = vessel (Clic here for more details about this article) |
10/14. Intravasation of barium sulphate at barium enema examination.We report a case of venous intravasation of barium sulphate occurring during a routine barium enema examination for investigation of rectal bleeding. The patient suffered a cardiopulmonary arrest, but made a full recovery after organ support in intensive care. review of radiographs from the examination showed intravasated barium in pelvic vessels. We review the literature on this rare, but serious, complication of barium enema examination and suggest measures by which intravasation can be prevented.- - - - - - - - - - ranking = 0.5keywords = vessel (Clic here for more details about this article) |
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