Eight-Year Follow-up of Experimental Carotid-Middle Cerebral and Carotid-Basilar Arterial Bypass Grafts and Anastomoses

Neurosurgery ◽  
1978 ◽  
Vol 2 (3) ◽  
pp. 246-251 ◽  
Author(s):  
G. Khodadad
Keyword(s):  
Blood Flow ◽  
Bypass Graft ◽  
Lingual Artery ◽  
Bypass Grafts ◽  
Arterial Bypass ◽  
Arterial Bypass Grafts ◽  
Flow Through ◽  
The Mean ◽  
Arterial Bypass Graft

Abstract Fifty-one dogs were operated upon, and various microvascular bypass grafts and anastomoses were completed. Seventeen of these dogs were followed for 5 to 8 years. Of these, three had a carotid-middle cerebral arterial bypass graft, five had a carotid-basilar arterial bypass graft, five had a lingual-basilar anastomosis, and four had a sublingualbasilar anastomosis. Postoperative carotid angiograms showed patent grafts and anastomoses in all of the dogs. Except for slight to moderate enlargement of the donor artery in the lingual and sublingual-basilar anastomoses or minor irregularities in the carotid-middle cerebral and carotid-basilar arterial bypass grafts, no significant changes were noted. In five dogs with lingual-basilar anastomoses in which both internal carotid arteries were ligated, the mean blood flow of the lingual artery was increased to 1.1 to 2.4 times normal. This study shows that, when experimental arterial bypass grafts and anastomoses remain patent for a few weeks after the operation, they stay patent for years, and, depending on the need, the blood flow through the anastomosis may increase.

In Vivo Validation of Numerical Prediction of Blood Flow in Arterial Bypass Grafts

2002 ◽  
Vol 30 (6) ◽  
pp. 743-752 ◽  
Author(s):  
Joy P. Ku ◽  
Mary T. Draney ◽  
Frank R. Arko ◽  
W. Anthony Lee ◽  
Frandics P. Chan ◽  
...  
Keyword(s):  
Blood Flow ◽  
Numerical Prediction ◽  
Bypass Grafts ◽  
Arterial Bypass ◽  
Arterial Bypass Grafts ◽  
In Vivo Validation

Early outcomes of novel Temren atherectomy device combined with drug-coated balloon angioplasty for treatment of femoropopliteal lesions

Vascular ◽  
2021 ◽  
pp. 170853812110298
Author(s):  
Görkem Yiğit
Keyword(s):  
Critical Limb Ischemia ◽  
Bypass Graft ◽  
Ankle Brachial Index ◽  
Limb Ischemia ◽  
Rotational Atherectomy ◽  
Total Occlusion ◽  
The Mean ◽  
Knee Pathology ◽  
Drug Coated Balloon

Objectives In this study, perioperative properties and early outcomes of patients who underwent combined Temren rotational atherectomy (RA) and drug-coated balloon (DCB) angioplasty treatment for complex femoropopliteal lesions in a single center were reported. Methods Between June 2019 and February 2020, 40 patients who underwent combined Temren RA and DCB treatment due to critical lower limb ischemia or claudication-limiting daily living activities were retrospectively evaluated. Results The mean age of patients was 73.2 ± 7.8 years and the majority of the patients were male (65%). Of the patients, 17 had critical limb ischemia and 23 had lifestyle-limiting claudication. Pathologies were total occlusion in 33 limbs and critical stenosis in seven limbs. Nine patients previously underwent endovascular intervention or surgery. The mean total occlusion length was 140.9 ± 100.9 (range, 20–360) mm in patients with chronic total occlusion. There was an additional iliac artery pathology in 5 and below the knee pathology in 8 patients. Rotational atherectomy was possible in all cases. Flow-limiting dissection was seen in six patients (15%). Provisional stent was performed to these patients. Following Temren RA, all patients underwent DCB. Adequate vascular lumen (less than 30% stenosis) was provided in all patients and the symptoms regressed. No distal embolization was encountered. Access site complications (17.5%) were small hematoma in four patients, ecchymosis in two patients, and pseudoaneurysm of the femoral artery in one patient. The mean follow-up was 13.55 ± 4.2 (range, 1–18) months. Re-occlusion was seen in three patients (7.5%) ( n = 2 at 2 months and n = 1 at 4 months). Of these patients, two had required open revascularization via femoropopliteal bypass graft with common, superficial femoral, and popliteal artery endarterectomy and one had required femoro-posterior tibial artery bypass. Four minor toe amputations (10%) were performed to reach complete wound healing in the critical limb ischemia patients. A below-knee amputation was performed in a 94-year-old patient with long segment stenosis at the end of a 1-month follow-up period. There was no mortality after follow-ups. The Kaplan–Meier estimator estimated the rate of freedom from target lesion revascularization (TLR) which was 92.3%. The decrease in the Rutherford levels after the procedure was found to be statistically significant in 36 patients ( p < 0.001). The increase in the ankle–brachial index after the procedure was found to be statistically significant in 36 patients ( p < 0.001). Conclusions Combined use of Temren RA with adjunctive DCB is safe and effective method with high rates of primary patency and freedom from TLR and low rates of complication in the treatment of femoropopliteal lesions.

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