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Biomedical subjects

C Laurian

Publications and source records attributed to C Laurian.

At least 163 records · Page 9Linked to original sources
PubMed1979

[Anastomosis between subclavian artery and V. A. at C1-C2 level. Case report and reappraisal of surgical possibilities on the third portion of the vertebral artery (author's transl)].

A reappraisal of surgical possibilities on the third portion of the Vertebral Artery (V.A.) above C2, have been done from an anatomical study on 20 autopsied specimen. A route passing between the Internal Jugular Vein and the Sternocleido-mastoidian muscle allows a rather simple approach of the transverse process of C1. After dividing two muscles taking insertion on this process, 1,5 cm of the V.A. can be exposed. For larger exposure of the artery, the Foramen Transversaris of C1 must be unroofed and the artery dissected in the guttering of the posterior arch of Atlas. This surgical route was used in a case of aneurismal dysplasia at C3 level. An anastomosis between Subclavian Artery and V.A. at C1-C2 level was realized with an autologous saphenous vein graft. The keypoints are the highest possible freeing of the XI nerve and the head position. Rotation and extension move the transverse process and the posterior arch of Atlas superficially and anteriorly.

Humans↗
PubMed1978

[Re-operation for myocardial revascularisation. 15 cases (author's transl)].

Among 1110 patients undergoing aorto-coronary bypass procedures, 15 required late re-operation (average interval 28 months) for myocardial revascularisation. This was performed following the recurrence of anginal symptoms, on average 15 months after the first operation. Six resections of localised stenosis of the vein graft and eleven "new" aorto-coronary bypass were performed. One patient died early, 12 hours after surgery, while 2 died 3 and 26 months later. Nine of the 12 survivors had no symptoms 4 to 63 months after the re-operation. Thus in the presence of angina recurring after aorto-coronary bypass, a new follow-up coronary arteriogram should be performed in order to seek lesions which might benefit from further attempted surgical treatment.

Adult↗
PubMed1978

[Congenital arteriovenous fistula of the broad ligament. 1 case].

Following a case report of a congenital arterio-venous fistula of the broad ligament, the authors set out the different types of vascular malformation seen in the pelvic region and they attempt to define the place of treatment. The treatment of these lesions involves embolisation of the vascular pedicle and an attempt at surgical excision, alone or one after another.

Adnexa Uteri↗
PubMed1977

[Gelatin resorcin formaldehyde glue in vascular surgery (author's transl)].

The use of this biological glue appeared to us to be of particular interest in the surgical treatment of dissecting aneurysms of the aorta. An experimental investigation revealed its hemostatic and adhesive properties, and demonstrated its merit when used as material in vascular embolization.

Aortic Dissection↗
PubMed1976

Surgical management of vertebral-basilar insufficiency.

The authors report treatment of 251 lesions of the major branches of the aortic arch and the vertebral artery in 172 patients. A detailed account is given of the lesions observed (34 lesions of the innominate artery, 93 of the subclavian artery and 119 of the vertebral arteries), the technics used and the indications for surgery. Use of the cervical approach seems to be justified in order to adapt the extent of surgery to the patient's condition. This accounts for the low mortality rate of 1.5%.

Adult↗
PubMedDate not supplied

[Critical ischemia of the leg. A technique for distal anastomosis in a a small caliber artery].

CRITICAL ISCHEMIA OF THE LOWER LIMBS: This type of lesion, which spontaneously progresses to gangrene and amputation, is encountered more and more frequently. Emergency endoluminal revascularization or bypass surgery is required. When conventional endoluminal techniques cannot be used, a distal graft using the autologous saphenous vein is a promising alternative to achieve patent vascularization and salvage the limb. IF VENOUS MATERIAL IS NOT AVAILABLE: Usable venous material is not always available due to varicosities, thrombus formation, small size or previous surgery (stripping, coronary surgery, prior revascularization procedure); rates reported range from 20 to 40%. For such patients, other veins (external saphenous, arm veins, superficial femoral veins) may be useful but are not always appropriate for distal repair. Different prostheses might also be used but again do not always provide improved permeability. Most teams however use a polytetrafluoroethylene stent for revascularization of the distal leg. Different technical improvements favor success of prosthetic bypasses, but when used below the knee, flow remains less satisfactory than with venous bypasses. VEIN CUFFS: This procedure is a common adjuvant technique positioning a venous cuff between the recipient artery and the prosthesis. The cuff avoids the direct contact between the prosthesis and the fragile artery that is often difficult to suture. RESULTS: Several series have demonstrated that the rate of success of vein cuff procedures remains lower than venous bypass procedures, but also that flow is better than with simple femorotibial prostheses. PATHOGENIC HYPOTHESES: The reduction of the neo-intimal hyperplasia observed in experimental models is insufficient to explain entirely the observed in vivo benefit. The fact that the suture is easier to make is one possible reason. Indeed the rate of failure of simple prosthetic bypass surgery is high in the immediate postoperative period. These cases of thrombosis result from technical insufficiencies and are undoubtedly overcome by the use of the venous cuff.

Angiography↗
PubMedDate not supplied

[Reimplantation of the subclavian artery into the common carotid artery].

Since 1973, transposition of the subclavian artery into the common carotid artery has been the technique of choice to treat prevertebral occlusive subclavian lesions. However, the haemodynamic results in the vertebral artery were far from perfect, as shown by immediate post-operative ultrasonic examinations. This has been corrected by a technical modification: the subclavian artery is severed flush with the vertebral artery lying obliquely downward and medially, which is equivalent to reimplanting a "double-barrelled" vessel (the vertebral and subclavian arteries) into the common carotid artery.

Arterial Occlusive Diseases↗
PubMedDate not supplied

Surgical management of vertebral-basilar insufficiency.

The authors report 251 cases of lesions of the major branches of the aortic arch and the vertebral artery in 172 patients. A detailed account is given of the observed lesions (34 lesions of the innominate artery, 93 of the subclavian artery and 119 of the vertebral arteries), the techniques used and the indications for surgery. The use of the cervical approach seems to be justified in order to adapt the extent of cure to the patient's condition and accounts for the low mortality rate of 1.5%.

Adult↗