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Biomedical subjects

C Laurian

Publications and source records attributed to C Laurian.

At least 127 records · Page 7Linked to original sources
PubMed1983

[Supraceliac anterograde revascularization of the visceral arteries].

Supraceliac revascularization of digestive (38 cases) and renal (12 cases) arteries, was performed in 50 patients between 1976 and 1982. Excluding acute ischemic lesions of the digestive arteries, and acute aortic thrombosis in one case, there was no postoperative mortality and only one case of late occlusion of an aortoceliac shunt. Short-and long-term follow-up examinations failed to reveal any morphologic or hemodynamic alterations. Implantation of the shunt in a zone that avoids the atheroma and the anterograde mode of revascularization appear to provide favorable results, this method being therefore competitive with conventional techniques.

Abdomen↗
PubMed1982

[Takayasu's disease. Diagnostic criteria (author's transl)].

Retrospective analysis of the records of 86 patients with Takayasu's disease confirmed that the condition is more common in women, that it is frequently associated with a history of tuberculosis and that angiography is of considerable help in showing vascular lesions that are characteristic by their location (common carotid artery, post-vertebral subclavian artery) and by their diffusion to various areas. Histological examination of 20 surgical specimens confirmed the diagnostic value of sclerosis of the media and adventitia (associated or not with inflammatory lesions) and therefore radically different from the lesions of the intima observed in Horton's disease. Diagnostic criteria based on clinical, radiological and histological data are proposed.

Aortic Arch Syndromes↗
PubMed1982

Vertebro-basilar ischaemia. Its relation to stenosis and occlusion of the vertebral artery.

Bilateral vertebral angiography has been performed on 44 cases of vertebrobasilar ischaemia (VB I), excluding transient ischaemic attacks, and on 20 cases of carotid ischaemia with lesions of the vertebral artery (VA). Significant lesions (stenosis of more than 50% of the lumen and occlusion) of the VA were found in 72% of VB I and 70% of carotid ischaemia cases. In the VB I group, occlusions are as frequent as stenosis (17 occlusions and 15 stenosis); on the contrary, occlusions are half as frequent as stenosis in the carotid ischaemia group. Bilateral lesions are also more often discovered after VB I than after carotid ischaemia. Topographically, the lesions are mainly at the ostium and in the third portion of the VA. The possibility that vertebro-basilar strokes are related to significant lesions of the VA in its cervical part is emphasized. Haemodynamic disorder can explain infarcts related to bilateral lesions and some of those reported after unilateral lesions. Embolism may be suggested in cases of significant stenosis and of certain unilateral occlusions.

Angiography↗
PubMed1982

Vertebro-basilar ischaemia with thrombosis of the vertebral artery: report of two cases with embolism.

Two cases with vertebro-basilar infarcts associated with severe stenosis of the vertebral artery in its cervical part is reported. Complete thrombosis of the vertebral artery was observed after a short delay in both cases. As the carotid arteries were normal and the controlateral vertebral artery was dominant, an embolic mechanism was suspected. No new event occurred in the following one and three years respectively after the stroke. These two cases demonstrate the possibility of embolism from severe stenosis of the cervical vertebral artery. This mechanism could explain some of the infarcts related to vertebral artery occlusion.

Cerebral Infarction↗
PubMed1982

[Takayasu's disease involving the vessels arising from the arch of the aorta and those of the upper limbs (author's transl)].

Lesions localized to the vessels arising from the aortic arch and those in the upper limbs were observed in 72 out of 84 patients with Takayasu's disease. In 54% of these 72 cases, other regions were affected, while only the vessels arising from the arch of the aorta were the site of lesions in the other 46% (isolated axillo-post-vertebral subclavian lesions were present in 14% of cases). Semiological features, long-term complications, and prognosis are discussed. 53 revascularizations were performed in 47 patients without mortality. Surgery is definitely indicated when severe stenosis of the brachiocephalic vessels or the main carotid arteries or their division exists. Revascularization of a subclavian artery stenosis should be limited to cases with ischemia of the upper limb on effort or when a histological diagnosis is required. Controversy exists as to the need for this operation in ectatic forms.

Aortic Arch Syndromes↗
PubMed1982

[Intraluminal angioplasty in the treatment of femoro-popliteal atheromatous lesions. Apropos of 57 cases].

Close cooperation between radiologist and surgeon is essential to prevent major complications of intra-luminal angioplasty, an only mildly aggressive revascularization procedure. Though evolution of an arteritis of the lower limbs can be halted by relief of the stenosis in some cases, the problem remains as to whether this technique is justified at the stage of claudication, even severe. The wider indications for dilatation at the iliac in relation to the femoropopliteal levels in this most recent series reported, testify this tendency.

Aged↗
PubMed1982

[Treatment of tumors in relation to the transverse portion of the vertebral artery].

Among 28 lesions, 22 tumors and 6 anteriovenous malformations, operated with control of the vertebral artery, 15 are located close to the transverse canal. Analysis of arteriographic datas from 20 cases of tumors related to the vertebral artery, points out the interest of the surgical control of this vessel, in the treatment of these tumors. This control is mainly indicated in case of hypervascularized tumors, or compression of the vertebral artery, especially if it is the dominant vessel or if it gives a radiculo-medullary branch. For this control, the lateral retro-jugular approach is used, and sometimes associated with other techniques: embolization, posterior approach, or anastomosis between carotid and vertebral artery about the lesion.

Arteriovenous Malformations↗
PubMed1982

[Venous graft versus carotid thromboendarterectomy (T.E.) (author's transl)].

497 cases of carotid stenosis were operated upon with 2 operative series: one with a venous graft technique and the other by thromboendarterectomy (T.E.). 228 grafts were thus compared with 192 T.E. during the initial postoperative period and 2 and a 1/2 years follow up. The prevalence of immediate postoperative complications was lower in the venous graft group than in the T.E. group but the distribution of patients in terms of neurological symptomatology was not strictly identical. By contrast, comparison of the asymptomatic patients in the two groups showed no morbidity nor mortality. It is thus not possible to state that vein graft is superior to T.E. in the prevention in particular of early embolic complications with the thromboendarterectomized zone as the point of departure and the follow up period is too short to assess the superiority of one or other method in the long term. During the 2 and a 1/2 year follow up period of the present study no pathology related to the vein graft has been seen, confirming the trial already reported.

Adult↗
PubMed1982

[Associated lesions of the aorta and visceral arteries. A special anatomo-clinical form of atheromatous disease].

The data of 124 observations of atheroma associated lesions of the aorta and its visceral branches, renal and mesenteric was collated. This retrospective study makes it clear that cases of atheromatous lesions involving the renal and mesenteric arteries can be considered as a special group. Aortic lesions above the level of the renal arteries have a variable outcome--the most commonly seen pattern is that of a thick circumferential plaque which encroaches on the openings of the visceral arteries. These lesions are either ulcerated or smooth and sometimes overlain by voluminous mural thrombus above the renal arteries. This group is associated with widespread atheromatous disease in the coronary and cerebral circulations. The prognosis is poor. A special approach to management is thus required since many arteries are affected and since usually, associated revascularization of the aorta and these four visceral branches is not present. This form of treatment is justified by a post-operative mortality of nil. There is a 50% mortality at three years, almost completely due to coronary disease.

Aorta, Abdominal↗
PubMed1981

[Deformities of the feet after Volkmann's ischemia in the lower limb (author's transl)].

The authors have observed 11 cases of Volkmann's ischemia in the lower limb. The main deformity was of equinus. 10 patients were operated on. In 8 cases, arthrolysis was performed with good results in 7 cases. In 2 cases an ankle arthrodesis was done with one good result and one secondary amputation. The surgical technique of the arthrolysis is described. In most of the cases, tendon lengthenings, capsulotomy and fixation with an external fixator was required. This device was tolerated and it is concluded that it is worthwhile in severe ischaemic syndrome and that arthrolysis is preferred to arthrodesis.

Adolescent↗
PubMed1981

[Contralateral shunt of a restored aorto-iliac axis for atheromatous aorto-iliac lesions (author's transl)].

Reparative surgery of an iliac axis was conducted on 35 patients with atheromatous aorto-iliac lesions, and was completed by a contralateral shunt as an "alternative" between a prosthesis and a bifemoro-aortic thromboendarteriectomy. Reconstructive surgery on the donor axis included a thromboendarteriectomy alone or combined with a venous graft in 31 cases, an aorto-femoral vein graft in 3 cases, and an external iliac angioplasty in 1 case. The contralateral shunt was by a vein graft in 29 patients, and a prosthesis in the other 6 cases. Two complications occurred, one due to progression of the atheromatous lesions on the unobstructed aorto-iliac axis, the other being related to fibrous stenosis of a crossed vein graft. Post-operative follow-up over periods ranging from 6 months to 6 years confirmed the good vascular prognosis.

Aorta↗