scholarly journals Methods for improving the results of using a synthetic prosthesis in the popliteal-tibial segment in critical limb ischemia

2020 ◽  
Vol 28 (2) ◽  
pp. 200-212
Author(s):  
Andrey A. Matyushkin ◽  
Alexey A. Lobachev
Keyword(s):  
Plastic Surgery ◽  
Limb Ischemia ◽  
Distal Anastomosis ◽  
Long Term Results ◽  
Bypass Grafting ◽  
Aim Analysis ◽  
Critical Ischemia ◽  
The University

Aim. Analysis of immediate and long-term results of using a synthetic prosthesis for femoral-distal-popliteal and tibial bypass grafting in patients with critical lower limb ischemia. Materials and Methods. Patients with symptoms of chronic arterial ischemia of the lower extremities in the stage of critical ischemia (n = 109) were operated at the university surgical clinic on the base of D.D. Pletnev City Clinical Hospital, Moscow, in the period from 2009 to 2017. All the patients underwent the operation of femoral-distal popliteal or femoral-tibial bypass grafting using a synthetic explant (PTFE). Shunting with a synthetic prosthesis was performed in 33 (30.3%) patients, and in 76 (69.7%) cases a combination of an explant with a section of autovein was used in the form of a combined shunt in 44 patients (40.4%) (synthetic prosthesis + autovein) or a patch- or cuff plasty of distal anastomosis in 32 patients (29.3 %). In 14 (12.8%) patients of both groups, the intervention was supplemented by intraoperative balloon angioplasty of the lower leg arteries. Long-term results were evaluated within the period up to 5 years after surgery. Kaplan-Meyer survival analysis was used for the calculation of results. Results. The cumulative 5-year patency of the synthetic prosthesis was 42.9%. However, use of the prosthesis in combination with the autovein section in the form of a combined shunt or plastic surgery of the distal anastomosis significantly improved the values of cumulative patency (54.5%) and limb retention (83.6%). Conclusions. The results obtained make it possible to recommend the use of a synthetic prosthesis in combination with an autovenous plastic surgery of a distal anastomosis or by combining a prosthesis with a small section of an autovein in the absence of a complete autovein. Regular monitoring of such shunts in the long-term period and timely follow-up interventions are necessary for improving long-term results.

scholarly journals SIMULTANEOUS REVASCULARIZATION OF AORTOFEMORAL AND FEMOROPOPLITEAL ARTERIAL SEGMENTS BY SEMICLOSED LOOP ENDARTERECTOMY

2017 ◽  
Vol 176 (2) ◽  
pp. 28-32
Author(s):  
V. V. Shlomin ◽  
A. V. Gusinskiy ◽  
M. L. Gordeev ◽  
I. V. Mikhailov ◽  
D. N. Maistrenko ◽  
...  
Keyword(s):  
Lower Extremity ◽  
Critical Limb Ischemia ◽  
Limb Ischemia ◽  
Arterial Occlusive Disease ◽  
Long Term Results ◽  
Single Level ◽  
Individual Approach ◽  
Chronic Limb Ischemia

OBJECTIVE. The authors would like to consider the possibility and feasibility of simultaneous revascularization of two arterial segments in patients with lower extremity arterial occlusive disease by method of semiclosed loop endarterectomy. MATERIALS AND METHODS. The research included 143 patients. Revascularization of aortofemoral segment was performed on 67 patients. The simultaneous revascularization of aortofemoral and femoropopliteal segments was carried out for 76 patients. The follow-up period was 5 years. RESULTS. There was revealed that the long-term results of multilevel reconstruction were worse that single-level reconstruction. This method requires an individual approach. The best results of simultaneous interventions were obtained in patients aged 60 and older with the III stage of chronic limb ischemia and 2 or 3 working shin arteries. The worst results were observed in patients younger than 50 year old with IV stage of critical limb ischemia and significant lesions of shin arteries.

Gamma Knife surgery for trigeminal schwannoma

2007 ◽  
Vol 106 (5) ◽  
pp. 839-845 ◽  
Author(s):  
Jason Sheehan ◽  
Chun Po Yen ◽  
Yasser Arkha ◽  
David Schlesinger ◽  
Ladislau Steiner
Keyword(s):  
Gamma Knife ◽  
Gamma Knife Surgery ◽  
Long Term Results ◽  
University Of Virginia ◽  
Trigeminal Schwannoma ◽  
The Mean ◽  
The University ◽  
Lost To Follow Up

Object Trigeminal schwannomas are rare intracranial tumors. In the past, resection and radiation therapy were the mainstays of their treatment. More recently, neurosurgeons have begun to use radiosurgery in the treatment of trigeminal schwannomas because of its successful use in the treatment of vestibular schwannomas. In this article the authors evaluate the radiological and clinical outcomes in a series of patients in whom Gamma Knife surgery (GKS) was used to treat trigeminal schwannomas. Methods Twenty-six patients with trigeminal schwannomas underwent GKS at the University of Virginia Lars Lek-sell Gamma Knife Center between 1989 and 2005. Five of these patients had neurofibromatosis and one patient was lost to follow up. The median tumor volume was 3.96 cm3, and the mean follow-up period was 48.5 months. The median prescription radiation dose was 15 Gy, and the median prescription isodose configuration was 50%. There was clinical improvement in 18 patients (72%), a stable lesion in four patients (16%), and worsening of the disease in three patients (12%). On imaging, the schwannomas shrank in 12 patients (48%), remained stable in 10 patients (40%), and increased in size in three patients (12%). These results were comparable for primary and adjuvant GKSs. No tumor growth following GKS was observed in the patients with neurofibromatosis. Conclusions Gamma Knife surgery affords a favorable risk-to-benefit profile for patients harboring trigeminal schwannomas. Larger studies with open-ended follow-up review will be necessary to determine the long-term results and complications of GKS in the treatment of trigeminal schwannomas.

Coronary-coronary bypass grafting: artery or vein?

2020 ◽  
Vol 28 (6) ◽  
pp. 316-321
Author(s):  
Vladlen Bazylev ◽  
Evgeny Rosseikin ◽  
Dmitriy Tungusov ◽  
Artur Mikulyak
Keyword(s):  
Myocardial Revascularization ◽  
Coronary Bypass ◽  
Long Term Results ◽  
Bypass Grafting ◽  
Coronary Bypass Grafting ◽  
Coronary Bypass Grafts ◽  
Long Term Follow Up ◽  
Observation Period

Background The method of coronary-coronary bypass grafting was described in 1987 but has not been widely used, and there are only a few studies that report good short-term and mid-term results as well as some individual cases of long-term follow-up. In our medical institution, we carried out an analysis of the long-term results of coronary-coronary bypass grafting, which are presented in this study. Methods This was a retrospective single-center study on 95 patients who underwent coronary-coronary bypass grafting as a supplement to the standard coronary bypass grafting procedure. All patients underwent angiographic assessment of the coronary bypass grafts during the long-term follow-up period. The observation period was up to 123 months. Angiographic assessment of 109 coronary-coronary grafts was carried out. Results Twelve (7.6%) arterial and 11 (19.3%) venous conduits were found to be occluded, and 8 (10.3%) arterial and 10 (31.3%) venous coronary-coronary grafts were occluded during the observation period. Conclusion Arterial coronary-coronary artery bypass grafting represents an alternative technique that allows complete myocardial revascularization.

Is initial success of thrombolytic therapy with rt-PA in patients with lower limb ischemia durable? A long-term follow-up series

VASA ◽  
2007 ◽  
Vol 36 (2) ◽  
pp. 114-120 ◽  
Author(s):  
Geier ◽  
Mumme ◽  
Köster ◽  
Marpe ◽  
Hummel ◽  
...  
Keyword(s):  
Thrombolytic Therapy ◽  
Success Rate ◽  
Lower Limb ◽  
Limb Ischemia ◽  
Long Term Results ◽  
Bleeding Complications ◽  
Acute Ischemia ◽  
Lower Limb Ischemia

Background: Catheter-directed intraarterial thrombolytic therapy with rt-PA has been established as an alternative to surgery in selected patients with lower limb ischemia. The purpose of this study is to evaluate its long-term results and to try to identify patient variables influencing outcome. Patients and methods: The results of thrombolytic treatment for acute or subacute lower limb ischemia in 82 patients (51 male, 31 female) were retrospectively analysed. Clinical data (time of symptoms onset, clinical stage, type of affected vessel, anatomical localisation) as well as comorbidities were recorded. The success rate of thrombolysis as well as the incidence of adverse events was evaluated. Patients with initial success were followed up after a median of 52,5 months. Results: Thrombolytic therapy was successful in 67 cases (82%). An additional endovascular or surgical procedure was necessary in 39 of these patients (48%). The overall bleeding rate was 18% and the mortality and major amputation rate was 1%. 42 patients with early clinical success were available for follow-up. 34 of them (81%) were free of ischemic symptoms and the overall limb salvage rate was 96%. We could not identify factors significantly influencing early or long-term results, although there was a trend towards better results in patients with acute ischemia and in patients with occluded native arteries. Conclusions: Intraarterial local thrombolytic therapy has a relatively high initial success rate in selected patients with lower limb ischemia, but is associated with a significant number of bleeding complications. Furthermore, additional procedures are required in almost half the patients. Initial success is durable at the long-term in the majority of cases. Better selection of patients and refinements of the thrombolytic therapy might help to further improve results and lower the bleeding complications.

scholarly journals Long-term results of eversion surgeries for internal carotid artery stenosis due to atherosclerosis

2015 ◽  
Vol 96 (3) ◽  
pp. 337-340
Author(s):  
I R Zakirov ◽  
I R Yagafarov ◽  
M G Khatypov ◽  
N G Sibagatullin ◽  
M Kh Zakirzyanov ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Carotid Artery ◽  
Internal Carotid Artery ◽  
Carotid Endarterectomy ◽  
Internal Carotid ◽  
Long Term Results ◽  
Aim Analysis ◽  
Eversion Endarterectomy

Aim. Analysis of long-term results of eversion carotid endarterectomy in patients with atherosclerotic carotid stenosis.Methods. 272 eversion carotid endarterectomy surgeries was performed from June 2008 to December 2014 in the department of cardiac surgery. Long-term results were studied in 198 (73%) patients, with follow-up term ranging from 6 to 48 months. The method of operation serves as a criterion separating Patients were allocated into two groups by the surgery method: in the first group, eversion endarterectomy was performed by Kieny, in the second - by DeBakey.Results. Reconstructed ipsilateral internal carotid artery was passable during the follow-up period in 100% of cases, as confirmed by ultrasonography. In the late period, the mortality in the first group was 2.3% (myocardial infarction and cancer), compared to 1.5% in the second group (myocardial infarction). Acute ischemic stroke occurred in 0.8% of the first group patients and in 1.5% of the second group patients. Restenosis of 50 to 69% were discovered in 3.7% of cases in first group and in 3% in the second group. Restenosis ≥70% were found in 1.5% in both groups of patients.Conclusion. The obtained data confirm that both methods of eversion carotid endarterectomy are safe and reliable in treatment of carotid arteries atherosclerosis and, thus, preventing stroke.

Long-term Results with the Palmaz Stent in the Superficial Femoral Artery

1995 ◽  
Vol 2 (2) ◽  
pp. 161-167 ◽  
Author(s):  
Patrice Bergeron ◽  
Jean J. Pinot ◽  
Vincent Poyen ◽  
Huber Benichou ◽  
Patrick Khanoyan ◽  
...  
Keyword(s):  
Femoral Artery ◽  
Superficial Femoral Artery ◽  
Clinical Success ◽  
Clinical Success Rate ◽  
Primary Patency ◽  
Long Term Results ◽  
Secondary Patency ◽  
Critical Ischemia

Purpose: Femoral stenting has demonstrated inconsistent and often disappointing long-term results. To compare our experience, we retrospectively analyzed a series of patients who had Palmaz balloon-expandable stents placed exclusively for superficial femoral artery (SFA) lesions. Methods: From January 1990 to November 1993, 39 patients were evaluated for claudication (79%) or critical ischemia in 42 limbs. The culprit lesions were confined to the SFA: 24 (57%) occlusions and 18 (43%) stenoses, including 3 restenotic lesions. Stenting was elective in 12 (29%) cases: the 3 restenoses and 9 chronic, calcified occlusions. The remaining stents were applied for postangioplasty residual stenosis or angioscopic findings of thrombogenic luminal irregularities. A total of 55 prostheses were successfully implanted. All patients were maintained on ticlopidine and followed by routine duplex scanning. Follow-up angiography was performed in 28 (72%) patients between 4 and 45 months. Results: In the postprocedural period, two acute thromboses (4.8%) occurred within 48 hours in patients who had long occlusions and poor runoff; no other major complications were encountered, for a clinical success rate of 95%. Follow-up evaluation ranged from 4 months to 4 years with a mean of 25 months. The restenosis rate was 19% (34% in occlusions; 10% in stenotic lesions, p = NS). At 24 months, cumulative primary patency was 77% and secondary patency 89%. Conclusions: Palmaz stents performed well in the SFA, demonstrating a low acute thrombosis rate and good long-term patency. The incidence of restenosis is likely to be greater in occlusions than in stenoses.

LONG-TERM FOLLOW-UP OF 100 CHILDREN WHO RECOVERED FROM TUBERCULOUS MENINGITIS

PEDIATRICS ◽  
1961 ◽  
Vol 28 (5) ◽  
pp. 778-791
Author(s):  
John Lorber
Keyword(s):  
Tuberculous Meningitis ◽  
Early Stage ◽  
Long Term Results ◽  
Intrathecal Therapy ◽  
Aminosalicylic Acid ◽  
Long Term Follow Up ◽  
The University ◽  
Number Of Injections

IT IS MORE THAN 13 years since streptomycin became available for the treatment of tuberculous meningitis. Since then treatment has become progressively more efficient and much less complicated.1-7 Between 1947 and the end of 1955, 170 children were treated for tuberculous meningitis by the Department of Child Health of the University of Sheffield. One hundred of these survived for 5 years or more. The purpose of this paper is to review the long-term results in these 100 survivors, 33 of whom have been followed for more than 10 years (Table I). Thirty children had been treated with streptomycin, 35 with streptomycin and aminosalicylic acid (PAS), and 35 with isoniazid, streptomycin and PAS. All had intrathecal treatment with streptomycin, although the length of the intrathecal therapy and the number of injections was progressively reduced as the newer antibiotics were introduced. No child had less than 20 intrathecal injections. At the beginning of their illness 47 were less than 5 years of age, 43 between 5 and 9, and 10 between 10 and 14 years of age (Table II). Thirty-one survivors were in the early stage of disease, 53 were in the intermediate and 16 in an advanced stage on admission. After discharge from the hospital they were all followed at regular intervals. In the follow-up period much stress was laid on the assessment of their personality, their achievement, and their adjustment to life. During this period closer acquaintance with the parents and their siblings helped in placing the patients' achievements and problems in perspective.

Anticoagulation in addition to dual antiplatelet therapy has no impact on long-term follow-up after endovascular treatment of (sub)acute lower limb ischemia

VASA ◽  
2019 ◽  
Vol 48 (4) ◽  
pp. 321-329
Author(s):  
Mariya Kronlage ◽  
Erwin Blessing ◽  
Oliver J. Müller ◽  
Britta Heilmeier ◽  
Hugo A. Katus ◽  
...  
Keyword(s):  
Endovascular Treatment ◽  
Antiplatelet Therapy ◽  
Dual Antiplatelet Therapy ◽  
Limb Ischemia ◽  
Bleeding Complications ◽  
Severe Bleeding ◽  
Short Term ◽  
Long Term Follow Up

Summary. Background: To assess the impact of short- vs. long-term anticoagulation in addition to standard dual antiplatelet therapy (DAPT) upon endovascular treatment of (sub)acute thrombembolic occlusions of the lower extremity. Patient and methods: Retrospective analysis was conducted on 202 patients with a thrombembolic occlusion of lower extremities, followed by crirical limb ischemia that received endovascular treatment including thrombolysis, mechanical thrombectomy, or a combination of both between 2006 and 2015 at a single center. Following antithrombotic regimes were compared: 1) dual antiplatelet therapy, DAPT for 4 weeks (aspirin 100 mg/d and clopidogrel 75 mg/d) upon intervention, followed by a lifelong single antiplatelet therapy; 2) DAPT plus short term anticoagulation for 4 weeks, followed by a lifelong single antiplatelet therapy; 3) DAPT plus long term anticoagulation for > 4 weeks, followed by a lifelong anticoagulation. Results: Endovascular treatment was associated with high immediate revascularization (> 98 %), as well as overall and amputation-free survival rates (> 85 %), independent from the chosen anticoagulation regime in a two-year follow up, p > 0.05. Anticoagulation in addition to standard antiplatelet therapy had no significant effect on patency or freedom from target lesion revascularization (TLR) 24 months upon index procedure for both thrombotic and embolic occlusions. Severe bleeding complications occurred more often in the long-term anticoagulation group (9.3 % vs. 5.6 % (short-term group) and 6.5 % (DAPT group), p > 0.05). Conclusions: Our observational study demonstrates that the choice of an antithrombotic regime had no impact on the long-term follow-up after endovascular treatment of acute thrombembolic limb ischemia whereas prolonged anticoagulation was associated with a nominal increase in severe bleeding complications.

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