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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Annals of vascular surgery 12 (1998), S. 476-481 
    ISSN: 1615-5947
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1615-5947
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1615-5947
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract During a 62-month period, carbon dioxide was used to supplement or completely replace iodinated contrast agents in performing 27 transluminal angioplasties in 26 patients. The arterial segments addressed included the following: renal in two cases, iliac in five, femoral/popliteal in 15, infrapopliteal in two, and combined in three. Indications for intervention included lower extremity gangrene in 11 cases, ischemic ulceration in 10, rest pain in three, claudication in one, and ischemic nephropathy in two. Contraindications to iodinated contrast agents included renal insufficiency resulting from diabetes (n = 20) or ischemic nephropathy (n = 2) and congestive heart failure (n = 4). Eight procedures used carbon dioxide as the sole contrast agent, whereas 19 required supplementation of carbon dioxide with a mean of 39 ml of nonionic contrast medium. Technical success was achieved in 25 procedures with significant hemodynamic improvement in 20 patients. Complications included transient deterioration in renal function in two patients and myocardial infarctions in two. At 30 days 18 patients had demonstrated significant clinical improvement. Patients at high risk for iodinated contrast-related complications may undergo transluminal angioplasty using carbon dioxide/digital subtraction arteriography to reduce or eliminate the need for iodinated contrast agents.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1615-5947
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract This report describes the surgical management of 24 patients with concurrent abdominal aortic aneurysm (AAA) and urinary tract neoplasm. The patient population consisted of 22 men and two women whose average age was 65.5 years. AAA sizes ranged from 3.1 to 9.0 cm (mean 5.2 cm) in diameter. Urinary tract neoplasms included transitional cell carcinoma (TCC) of the bladder (n = 19), adenocarcinoma of the prostate (n = 3), and TCC of the renal pelvis (n = 2). Urologic procedures included radical prostatectomy, radical nephroureterectomy, and radical cystoprostatectomy with continent or ileal loop urinary diversion. The AAA was resected at the time of the Urologic procedure in 12 patients (group I) or prior to the Urologic procedure in five patients (group II) and was left in situ in seven patients (group III: AAA diameter 3.1 to 5.5 cm). All patients but one in group I recovered without complications. One patient developed an infection postoperatively as a result of fluid collection anterior to the aortic vascular graft; the fluid was successfully drained and the patient subsequently recovered uneventfully. All patients in group II had a marked retroperitoneal desmoplastic reaction at the time of the Urologic procedure as a result of prior aneurysmectomy, which complicated the ureteral dissection. One patient later required an ileal ureteral reconstruction for obliterative fibrosis of the ureter. At a mean follow-up of 34 months, no infectious or mechanical complications of the vascular prosthesis occurred in group I or II. Eight patients in group I and two in group II are alive. Three have died of metastatic disease and two of myocardial infarction. Of the seven patients in group III, four subsequently required AAA resection for an increase in AAA size and three have died. One patient died of a ruptured AAA, whereas the other two died of metastatic disease and unknown causes, respectively. This surgical experience suggests that simultaneous correction of a concomitant AAA and Urologic neoplasm is feasible and advisable. It is technically superior, minimizes perioperative complications and later graft sepsis, avoids the need for later AAA resection, and eliminates the risk of AAA rupture.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Heart and vessels 7 (1992), S. 154-158 
    ISSN: 1615-2573
    Keywords: Takayasu arteritis ; Renovascular hypertension ; Arterial reconstruction
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The role of surgical therapy for Takayasu arteritis remains controversial. From 1973–1991, 23 patients with Takayasu arteritis have been treated at the University of Southern California. Twelve patients have required 17 arterial reconstructions for symptomatic complications of arterial disease refractory to medical therapy. Indications for operation have included renovascular hypertension (7), extremity ischemia (5), cerebrovascular insufficiency (2), dilated ascended aorta with aortic insufficiency (1), thoracic aortic aneurysm (1), and abdominal aortic aneurysm (1). Long-term clinical follow-up has demonstrated uniform symptomatic improvement. Fifteen of seventeen arterial reconstructions are still patent. Surgical treatment of symptomatic Takayasu arteritis is highly effective. Excellent long-term graft patency can be expected following arterial reconstruction.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1615-5947
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The benefit of preoperative cardiac evaluation in the diabetic patient undergoing peripheral vascular surgery is uncertain. To investigate this issue we performed a retrospective review of 192 procedures performed in diabetic patients for chronic lower extremity arterial occlusive disease. The incidence of adverse postoperative cardiac events was determined, as well as its association with several preoperative factors including symptoms of coronary artery disease (CAD), extent and results of preoperative noninvasive cardiac evaluation, and operative site (aorta vs. lower extremity). The overall death and cardiac complication rates were 10.2% for lower extremity and 25.7% for aortic procedures (p=0.02). For myocardial infarction and cardiac death alone, the rates were 5.1% and 5.7%, respectively (p〉0.10). Although a history of symptomatic CAD predicted the occurrence of any cardiac complication (28.3% vs. 8.2% [p〈0.01] for the aortic and lower extremity revascularization groups combined), no factor was found to be associated with the occurrence of myocardial infarction and cardiac death alone. In patients with a history of symptomatic CAD, there was no significant difference in the incidence of complications whether or not preoperative noninvasive cardiac testing was performed (28.1% vs. 28.6%,p〉0.10) or, if testing was performed, if the results were abnormal or normal (35.3% vs. 20.0%,p〉0.10). Similar results were obtained in patients with no history of symptomatic CAD. In summary, this retrospective review of our experience with noninvasive evaluation to detect CAD in diabetic patients undergoing peripheral vascular surgery failed to show any benefit in terms of reducing the incidence of postoperative cardiac events.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Annals of vascular surgery 10 (1996), S. 347-355 
    ISSN: 1615-5947
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We compared the findings of intraoperative color duplex scanning and completion arteriography in patients undergoing infrainguinal vein bypasses to identify hemodynamic abnormalities that could result in a predisposition to early or late graft failure. We reviewed the records of 72 patients who underwent 81 vein bypass graft procedures. Three intraoperative diagnostic methods were used. In 28 procedures (group I) both color duplex and completion arteriography were used, in 21 procedures (group II) only color duplex was used, and in 26 procedures (group III) only completion arteriography was used. Grafts were followed using a duplex surveillance protocol for a mean interval of 16.1 months. Nine grafts in group I showed an abnormality on the duplex scan but not on the completion arteriogram. Seven grafts had a peak systolic velocity (PSV) greater than 200 cm/sec and two had a PSV less than 45 cm/sec. These findings led to six immediate repairs, one early revision, and two late revisions. Arteriography demonstrated additional defects in two procedures but repairs were not performed. In group II duplex scans showed an abnormality in eight procedures (seven grafts with PSV 200 to 250 cm/sec and one graft with a retained valve) resulting in three immediate repairs and five late revisions. In the remaining 13 procedures in group II, duplex scans were normal and no revisions were required during follow-up. In group II defects were detected by arteriography in four procedures (〉50% stenosis in three grafts and one arterial spasm) leading to three immediate repairs. In the remaining 22 studies arteriograms were interpreted as normal; however, seven of these grafts required late revisions. Our data suggest that grafts that appear normal on intraoperative duplex scans are not likely to develop a stenosis requiring revision. Intraoperative duplex ultrasound may be superior to completion arteriography.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Annals of vascular surgery 7 (1993), S. 343-346 
    ISSN: 1615-5947
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Thrombosis of central veins has become more prevalent because of increased use of long-term central venous catheterization.Candida superinfection of the thrombus can occur particularly in patients on long-term antibiotic therapy and on parenteral nutrition. Removal of the catheter, thrombolytic therapy, anticoagulation, and antifungal therapy with amphotericin B will usually eradicate the candidemia and restore venous patency. Occasionally this therapeutic regimen fails. This case report illustrates such a failure in which multiple pulmonary emboli could have caused death. Surgical thrombectomy of the innominate vein effectively removed the source of theCandida sepsis and maintained patency of a major vein. Thrombectomy should be considered as a therapeutic option in septic central vein thrombosis.
    Type of Medium: Electronic Resource
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  • 9
    ISSN: 1615-5947
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract During a 20-year period from 1973 to 1992, 109 patients underwent early operation for acute popliteal artery trauma. Clinical variables were analyzed for their association with amputation. Gunshot wounds accounted for the majority of injuries (73%), followed by shotgun wounds (18%), stab wounds (6%), iatrogenic injuries (2%), and lacerations (1%). Fasciotomies were performed selectively in 41% of patients. Seven patients (6%) lost the injured extremity despite arterial repair. The mean time from injury to arterial repair was not significantly different for patients with or without subsequent amputation (8.6±3.6 and 9.7±7.4 hours, respectively;p=0.69). Delay in diagnosis longer than 6 or 12 hours after the injury did not increase the risk of amputation. Other factors not associated with limb loss were preoperative ischemic neurologic deficit or compartmental hypertension, concomitant fracture, and popliteal vein injury. Severe soft tissue injury (p〈0.0001) or postoperative wound sepsis (p〈0.0001) substantially increased the risk of amputation. Delayed fasciotomies were uncommon (4%) but were associated with a significantly increased risk of amputation (p〈0.0001). Vein grafting for arterial repair (p=0.0017) and shotgun injuries (p〈0.0001) were associated with amputation to the extent that they were related to severe soft tissue injury. The degree of soft tissue trauma and subsequent infection of devitalized tissue limits the success of popliteal arterial repair. Changes in the mechanism of trauma, liberal use of four-compartment fasciotomies, and aggressive management of soft tissue injury resulted in a significant decline in the amputation rate from 21% (4/19) in the first 5 years to 0% (0/39) in the last 5 years of the study.
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Annals of vascular surgery 9 (1995), S. 415-421 
    ISSN: 1615-5947
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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