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At least 19 recordsLinked to original sources
PubMed1977

[The tentorial meningioma fed by "marginal tentorial artery" arising from the external carotid artery--a case report and review of literature (author's transl)].

It is well known that a Bernasconi-Cassinari artery is an important finding at diagnosis of the abnormality in tentorium. Since Bernasconi and Cassinari reported the artery in 1956, many reports have been presented and showed that the artery arose from the intracavernous portion of the internal carotid artery. We presented a 54-year-old female with tentorial meningioma. In selective external carotid angiography, the artery feeding the tumor was revealed arising from the accessory meningeal artery, which came off the internal maxillary artery and passed into the carnium through the foramen ovale, and took the same course of "Bernasconi-Cassinari artery". This angiographic finding suggests that it is possible for marginal tentorial artery to arise from an external carotid arterial system. It is said in the anatomical studies, when the trunk of primitive maxillary artery which is one of maxillo-carotid anastomotic arteries in fetus regresses, "marginal tentorial artery" usually remains linked to the internal carotid artery. But, if this transition of "the artery" from the external to the internal carotid artery failed, it is easily conceived the artery results in the origin of accessory meningeal artery, a branch of the external carotid artery.

Brain Neoplasms↗
PubMed1978

Isolated, blood-perfused canine arteries: different vasoconstrictor responses of internal and external carotid arteries to 5-hydroxytryptamine.

Canine carotid arteries were isolated, suspended in a bath and perfused under a constant flow rate with arterial blood led from a support dog. Resting perfusion pressure was set at a constant level over 50 mm Hg. Drugs were administered into the endothelial side of the artery through a cannulated tubing and the response was obtained as pressure changes. This preparation was proved to be superior to usual isolated arterial strips, since its reactivity was kept in a stable condition over 5-10 hours at 37 degrees C. Using this preparation, effects of 5-hydroxytryptamine (5-HT) on the internal and external carotid arteries were investigated in comparison with effects of norepinephrine. In the internal carotid artery, 5-HT caused a much more potent vasoconstriction than norepinephrine. On the other hand, in the external carotid artery, 5-HT caused only slight vasoconstriction, while norepinephrine produced a marked vasoconstriction.

Animals↗
PubMed1979

Vasoconstriction of external carotid arteries after rupture of intracranial aneurysms.

Vasoconstriction of the external carotid arteries, which has not been previously reported, was investigated angiographically in 23 patients who had intracranial vasospasm after aneurysm rupture. In about 50% of these patients vasoconstrictive change in the external carotid arteries was also found. These changes were not seen in control cases without intracranial vasospasm. Pathogenesis of the vasoconstriction of the external carotid arteries was discussed with particular emphasis on the relationship with sympathetic nerves.

Arteries↗
PubMed1978

Therapeutic embolization in the external carotid artery region.

Therapeutic transcatheter embolization with spongostan in the region of the external carotid artery has been employed in 17 patients, in some of them on several occasions. The technique is presented and different means of avoiding complications are discussed in detail. Embolization has been used preoperatively and as the single mode of treatment of ENT tumours or meningeomas, and also as the only treatment in arteriovenous malformations. The technique has proven particularly useful in preoperative de-arterialization of ENT tumours when surgery follows in 1 to 2 days. In cases with arteriovenous shunts, a subjective improvement has been achieved.

Adolescent↗
PubMed1979

[Vasoconstriction of external carotid arteries after the rupture of intracranial aneurysm (author's transl)].

A patient in whom vasospasm of not only intracranial but also extracranial arteries was demonstrated after the rupture of an intracranial aneurysm was reported. A 55-year-old male was admitted with a ruptured left IC-PC aneurysm. Intracranial direct operation and continuous ventricular drainage were performed 33 hours after the rupture. Six days after the surgery, right hemiparesis and consciousness disturbances developed. Angiography revealed severe vasospasm of intra-and extracranial arteries, especially branches of the external carotid artery. The symptoms improved markedly following the superior cervical ganglionectomy and perivascular sympathectomy of cervical internal carotid artery on the left side. Vasospasm of the external carotid system, which has not been reported, was further investigated angiographically in 23 patients who had vasospasm of the intracranial arteries after aneurysm rupture. In about 50% of these patients was found vasospasm of the external carotid system too. These changes were not found in control cases without vasospasm of the intracranial arteries. Pathogenesis of the vasospasm of the external carotid system was discussed with particular emphasis on the relationship with the sympathetic nerves.

Carotid Artery Diseases↗
PubMed1976

[Compression of the external carotid artery. An anatomical finding to Eagle's syndrome (author's transl)].

An anatomical finding to Eagle's styloid process-carotid artery syndrome is presented. The left external carotid artery of a 64-year-old male is compressed by an anomalous styloid process and by the tendon of the stylohyoid muscle. Symptoms caused by anomality of the styloid process are reported by means of literature. The histological examination of the vessel wall in the level, where it is compressed, reveals typical characteristics of early arteriosclerosis.

Aged↗
PubMed1979

[Selective catheterization and embolization of the branches of the external carotid artery in neurosurgical clinical practice].

A method for selective catheterization and angiography of the branches of the external carotid artery and their subsequent embolization is described. Selective catheterization of arteries for diagnostic and therapeutic purposes was carried out in 148 patients (183 vessels). Embolization of the branches was performed in 79 patients, a total of 111 arteries were occluded. The method was successfully used in the treatment of arteriosinusal anastomoses and arteriovenous aneurysms supplied with blood from the branches of the external carotid artery, severe nasal hemorrhages, and as a first stage before operation for richly vascularized meningiomas, angiomas of the maxillofacial region, and tumors in the region of the neck.

Adolescent↗
PubMed1978

Case for ligation of the external carotid artery in composite operations for oral carcinoma.

The ligation of the external carotid artery has been performed routinely in 186 executive composite operations in patients suffering from carcinoma of the tongue, floor of the mouth, mandibular gingiva and buccal mucosa. The ligation is indicated because it controls the hemorrhage, ensures a clean operating field and prevents the facial edema and hematoma formation without having any unwanted effect on the healing of the wound.

Carcinoma, Squamous Cell↗
PubMedDate not supplied

External carotid artery in internal carotid artery occlusion. Angiographic, therapeutic, and prognostic considerations.

Twenty-three instances of internal carotid artery occlusion occurring with minimal neurological deficit in 22 patients are described. Although each of these patients was referred to the neurosurgical service for evaluation for an extracranial-intracranial microvascular bypass procedure, complete arteriographic evaluations of their cerebrovasculature suggested that alternative methods should be the treatment of choice. For each patient reported the ipsilateral external carotid artery was demonstrated by angiography to be an important source of collateral blood supply to the cerebral hemispheres or retinae distal to the occluded internal carotid arteries. Ten patients with no significant atherosclerotic narrowing or ulceration of the external carotid artery have remained free of symptoms of cerebral ischemia for 6 to 40 months. In twelve patients who developed delayed recurrent cerebral or retinal ischemia ipsilateral to their internal carotid artery occlusion, there were found obstructive and/or ulcerative plaques involving the common and/or external carotid arteries. Thromboendarterectomy in 11 of these patients gave complete relief of ischemic symptoms during the 4 to 36 months of postoperative follow up. One of these 12 patients refused operation and went on to develop a major cerebral infarction. Angiographic identification of a functionally important external carotid artery ipsilateral to an internal carotid artery occlusion carries considerable prognostic and therapeutic significance.

Adult↗