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  • 1
    ISSN: 1436-2813
    Keywords: flow wave pattern ; bidirectional doppler flowmeter ; peripheral arterial reconstruction ; prevention of late occlusion
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A prognostic flowmetric study on 80 reconstructed arteries of the lower extremity was carried out to assess the flow wave patterns detected using a bidirectional doppler flowmeter. In 21 of 80 arteries, changes in the flow wave pattern were noted. For 10 of 21 affected arteries, an immediate arteriography revealed localized stenotic lesions at the distal anastomosis in a short segment of the implanted autogenous vein graft or at the proximal host artery. Immediate repairs for the lesions were successfully performed by a minor surgery in 8 of 10 cases and the flow wave pattern reverted to normal. Two were not successful, as the occlusion was complete before attempting the repair. The remaining 11 are now under conservative management as these patients refused further surgery. The ultrasonically driven flow wave pattern proved to be a useful indicator to assess the patency of the reconstructed peripheral artery to detect possible stenosis and thereby to take proper corrective measures and hence prevent a late occlusion.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1436-2813
    Keywords: persistent sciatic artery ; hypopliastic superficial femoral artery ; acute arterial occlusion ; retrograde femoral arteriography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A case of a persistent sciatic artery in a 68-year-old farmer, showing symptoms of acute arterial occlusive lesion of the right lower limb is presented. The persistent sciatic artery was joined to the internal iliac artery proximally and to, the popliteal artery distally. The anomalous artery was occluded by atheromatous thrombi. The superficial femoral artery was hypoplastic and terminated in the descending genicular artery at the midthigh level. A successful bypass was performed between the common femoral artery and proximal popliteal artery utilizing a woven teflon graft.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1436-2813
    Keywords: stasis syndrome of lower extremity ; open endvenectomy ; temporary arteriovenous fistula ; increasing venous blood flow ; iliac vein occlusion
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Effect of the temporary arteriovenous fistula on venous reconstruction for stasis syndrome of the lower extremity was studied experimentally and clinically. The canine iliac vein was replaced with an autogenous vein graft in which the intimal surface was roughened by scrubbing with sponge. A temporary arteriovenous fistula which was closed surgically three or four weeks later was created between the femoral vessels. The patency rate for twenty-one grafts was 80.9 per cent for one to thirty-six weeks (mean 8 weeks), in contrast to complete failure in the control group in which no arteriovenous fistula was created. Adequate healing of the luminal surface of the grafts were experimentally demonstrated by light microscopic examination and en face silver staining of the endothel-like cells with the aid of patent arteriovenous fistula for three weeks. This procedure was clinically applied in four patients with stasis syndrome of the lowere extremities. Good function of the reconstructed venous segments in three of four patients was observed for the last 3 to 8 years after the operations. A looping technique using 2-0 monfilament nylon around the fistula devised by us was very helpful to make easy the shunt closure later. Open endvenecoomy with a temporary arteriovenous fistula is believed to be an acceptable approach for segmental chronic occlusive lesion in the iliac vein.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1436-2813
    Keywords: autovein graft ; fibrinolytic activity ; in-situ autovein graft
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Three types of autovein grafting procedures have been commonly employed for peripheral arterial reconstruction, that is, non-reversed, resersed and in-situ autovein grafting, and these procedures were comparatively studied in dogs to assess the best one for grafting. In the fibrinolytic activity of the internal surface of the grafts, as measured by standard fibrin plate method and Todd's fibrin slide technique, the in-situ autovein graft showed the highes activity, 139.5% in the mean, followed by 18% (mean) in the reversed autovein graft and 5.2% (mean) in the nonreversed autovein graft. The extent of fibrous proliferation of the pseudointima was least in the in-situ graft followed by the reversed and the non-reversed graft. These results suggest that preservation of the vasa vasorum is the most impotant factor to minimize fibrous proliferation of the graft pseudointima and to maintain high fibrinolytic activity on the internal surface of the graft. Consequently, the in-situ autovein grafting appears to be the most suitable method to ensure peripheral arterial continuity following surgical reconstruction.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Surgery today 25 (1995), S. 633-639 
    ISSN: 1436-2813
    Keywords: lymphedema ; lymphatic node-to-vein anastomosis ; lymphatic vessel-to-vein anastomosis ; isolated venous segment
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract To design a more rational and effective surgical method of performing lymphatic-venous anastomosis to treat secondary lymphedema of the lower extremities, the following experiments were conducted on three groups of dogs: group A underwent an end-to-side lymphatic node-to-vein anastomosis at the inferior vena cava; group B underwent a “burying” lymphatic vessel-to-vein anastomosis at the femoral vein; and group C underwent a burying lymphatic vessel-to-isolated-vein anastomosis at the femoral vein. In group C, the femoral venous segment was isolated by distal ligation and proximal valvuloplasty and the patency of the anastomosis was investigated by infusing yellow Microfils through the distal lymphatic vessel. The patency of the anastomosis was nil in group A by 10 days after the anastomosis, 40% in group B by 180 days; and 71.4% in group C by 180 days, respectively. Thus, we clinically applied the technique of lymphatic vessel-to-isolated-saphenous-vein anastomosis in a patient with secondary lymphedema of the bilateral lower extremities. A satisfactory reduction in the size of the limbs was achieved and there has been no further recurrence of cellulitis in the 42 months since her surgery. This study shows that lymphatic vessel-to-vein anastomosis is an effective technique for the surgical management of secondary lymphedema, so long as the anastomosis is completely protected from any contact with blood.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1436-2813
    Keywords: Key Words: autovein bypass graft ; intimal hyperplasia ; collagen ; poor distal outflow
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1436-2813
    Keywords: abdominal aortic aneurysm ; aortoduodenal fistula ; synthetic graft ; graft infection ; axillo-femoral synthetic bypass ; ligation of aortic stump ; aneurysmal dilation ; aortointestinal fistula ; modified Roux-Y jejunal plasty
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Two patients having the abdominal aneurysm with aortoduodenal fistula were treated surgically, but graft infection occurred. One patient died about 6 months after and the other about one year after the operation due to massive hemorrhage from the postoperative aortointestinal fistula. The difficulties in the treatment of the aortoduodenal fistula were discussed.
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1436-2813
    Keywords: vascular access ; end-to-end arteriovenous fistulas ; Inokuchi’s vascular stapler ; hemodialysis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Using Inokuchi’s vascular stapler, arteriovenous fistulas with an end-to-end fashion for hemodialysis were constructed in 80 patients (82 limbs) with chronic renal failure. In 76 patients and 76 limbs (95%) of a total of 80 patients, the fistulas were patent and hemodialysis could be effectively carried out. Use of Inokuchi’s vascular stapler facilitated a rapid construction of subcutaneous end-to-end arteriovenous fistulas, and no particular training in vascular surgery was required for the operator. Since the anastomosis was constructed in an end-to-end fashion, complications such as swollen hand, peripheral steal syndrome and cardiac failure were nil.
    Type of Medium: Electronic Resource
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  • 9
    ISSN: 1436-2813
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Three patients with coarctation of aorta were treated by a newly devised simple and safe innomino-abdominal aortic bypass grafting. Postoperative course was completely satisfactory and complications were rare. This procedure is thought to be effective treatment for the coarctation of aorta.
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 1436-2813
    Keywords: Aorto-iliac arterial occlusion ; synthetic prosthesis ; endarterectomy ; axillo-femoral bypass ; cumulative patency rate
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We report a review of 215 reconstructions for aorto-iliac arterial occlusive lesions, involving 156 patients. At 13 years, the cumulative patency rate of 158 aorto-femoral or aorto-iliac dacron synthetic bypass prostheses was 71.6 per cent as compared to 52.7 per cent at 5 years for 22 blunt endarterectomies and 47.4 per cent at 6 years for 35 axillo-femoral bypass prostheses. Of the 158 synthetic bypass prostheses, the cumulative patency rate at 13 years was 85.1 per cent in cases with no occlusive involvement of the peripheral arteries, significantly higher (p〈0.03) than the 39.3 per cent patency rate at 7 years in cases in which associated femoro-politeal occlusive lesions were not treated. At 12 years, the patency rate was 53.2 per cent in cases in which associated femoro-popliteal occlusive lesions were treated during the same reconstructive intervention, i.e. markedly higher (p〈0.08) than in patients in whom the degree of outflow in the distal vessels was poor. Our findings indicated that, in order to achieve a satisfactory long-term patency rate, it is important to treat associated occulusive lesions in the femoro-popliteal arteries.
    Type of Medium: Electronic Resource
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