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Pseudoaneurysm of the popliteal artery: a rare sequela of acupuncture.

Acupuncture is an ancient Chinese treatment that has proved effective in relieving pain of various origins. Pseudoaneurysm resulting from acupuncture is an extremely rare event. Only 4 patients treated surgically for such a condition have previously been reported in the world medical literature. We present the case of a patient who had a pseudoaneurysm of the popliteal artery that resulted from acupuncture therapy for osteoarthritis of the knee. The patient was successfully treated by direct repair of the pseudoaneurysm.

Acupuncture Therapy↗

Central venous catheter migration to the popliteal artery during total cavopulmonary shunt.

Central venous catheter migration to the arterial system occurred due to the surgical procedure during total cavopulmonary shunt. The catheter seems to have crept into the portion of the vena cava that had been designated for clamping, because of the position for the surgery and the anatomic characteristics of the patient. The catheter migrated in the right popliteal artery and was removed immediately; however, it could enter the pulmonary arterial system and the other systemic arterial branches.

Adolescent↗

Comparative analysis of vein and prosthetic bypass grafts to the isolated popliteal artery.

The effectiveness of prosthetic femoropopliteal bypass grafts to salvage limbs and maintain long-term patency in lower extremities with a limited outflow tract is controversial. To evaluate the results of prosthetic grafts and compare them with the results of vein bypass grafts in limbs with a limited outflow tract, we reviewed a 15-year experience with 65 grafts to an isolated popliteal artery segment. Fifty-one grafts were performed with autogenous saphenous vein, and 14 grafts utilized a prosthetic conduit. The indication for surgery was rest pain in 22 patients and actual tissue necrosis in 43 patients. The operative mortality rate was 3.4%. The average preoperative absolute ankle blood pressure was 48 mm Hg. Following a successful bypass, an average increase of 45 mm Hg was noted. The mean intraoperative blood flow was 70 ml/min. The superior performance of autogenous vein grafts was quite marked, with a 5-year cumulative patency of 65.4 +/- 8.5% as compared with only 17.1 +/- 10.1% for prosthetic grafts. The limb salvage rate for the entire group was 69% at 5 years. These data show the efficacy of isolated segment femoropopliteal artery grafts in achieving long-term limb salvage and stress the superiority of vein grafts over prosthetic grafts in this location.

Adult↗

Blunt popliteal artery injuries.

AIMS: To survey the recent results of vascular damage resulting from knee injuries at Middlemore Hospital. METHOD: A group of sixteen patients treated between 1980-92 were retrospectively analysed. RESULTS: One patient failed a grafting procedure and required a below knee amputation. Another patient lost two muscle compartments with its associated disability, as a result of pressure necrosis from the acute compartment syndrome. The remaining patients were successfully revascularised. CONCLUSION: Unless revascularisation is quickly achieved popliteal artery damage associated with knee injuries will lead to frequent leg amputation.

Adolescent↗

Popliteal artery pseudoaneurysm: a rare complication of brucellosis.

Brucellosis is still a public health problem, particularly in developing countries. After the primary infection subsides, a chronic stage characterized by nonspecific manifestations can develop, during which it may not be possible to isolate Brucella organisms and agglutination test titers may or may not be high. We present the case of a 49-year-old man who had only nonspecific symptoms and a 2-month history of a pulsatile painful swelling in his right popliteal region. He had no history of trauma or surgery in that region, but he did ingest unpasteurized milk products. The patient's agglutination test titers were high, and Brucella melitensis was isolated from a bone marrow culture. Color Doppler sonography, T2-weighted MRI, and digital subtraction angiography were performed. Treatment with ultrasound-guided compression of the pseudoaneurysm failed because of high blood flow in its neck. Aneurysmectomy was undertaken, and the excised material was consistent with that from a mycotic pseudoaneurysm. Although both MRI and angiography provided useful information, the color Doppler sonography findings were characteristic of a pseudoaneurysm in the popliteal artery, and only that modality could detect the flow dynamics within the pseudoaneurysm.

Aneurysm, False↗

Popliteal artery injury after total knee arthroplasty.

Total knee arthroplasty (TKA) is a commonly performed orthopedic procedure. The incidence of vascular complications after TKA is low. However, these complications may be debilitating, limb-threatening, and potentially avoidable. Our first patient, who had no preexisting vascular occlusive disease, developed an ischemic extremity after TKA. The second patient underwent TKA and was diagnosed with a severely ischemic limb 48 hours postoperatively. Both patients underwent above-knee to below-knee popliteal artery saphenous vein bypass grafting. Although limb salvage was obtained in both cases, one had a significantly neuropathic foot. In conclusion, long-term morbidity can be avoided by early identification and treatment of ischemia by bypass grafting.

Aged↗

Leiomyosarcoma of the popliteal artery. A report of two cases.

Leiomyosarcomas (LS) are relatively uncommon soft-tissue sarcomas that occasionally involve the extremities. LS are usually tumors of adults and most often involve the gastrointestinal tract and uterus. When a soft-tissue sarcoma is suspected, comprehensive preoperative staging studies are an important part of the diagnostic and therapeutic management. With the use of computed tomography and magnetic resonance image scanning, the role of the arteriogram in the staging of soft-tissue tumors has been markedly diminished. There is still, however, a place for the arteriogram in the staging of soft-tissue tumors that are proximate to or displace the neurovascular bundle. Two patients demonstrated LS that arose from the popliteal artery, illustrating the importance of arteriography. When indentation and displacement can be visualized, involvement of the artery should be suspected. This may be critical when considering limb salvage versus amputation surgery. If limb salvage surgery is to be accomplished, an interpositional graft and segmental resection of the artery are necessary.

Aged↗

Left ventricular thromboembolic occlusion of the popliteal artery treated nonoperatively with local urokinase infusion--a case report.

Recently streptokinase and urokinase have been shown to be useful in the nonoperative treatment of thromboembolic disease. Urokinase is emerging as a safer and more effective thrombolytic agent when applied either to definitively lyse spontaneous thrombosis where no underlying structural lesion is present or to serve as an adjunct prior to surgical reconstruction or transluminal angioplasty. The authors report a case of a high-risk cardiac patient in whom an embolic occlusion of the distal popliteal artery was completely recanalized by using a localized catheter infusion of urokinase. The source of the embolus was a left ventricular thrombus. No serious bleeding or proximal or distal embolic complications occurred. The potential hazards of fragmentation of the embolic source in the presence of systemic thrombolysis, distal trifurcation embolization, and concomitant use of heparin are reviewed.

Angiography↗

Popliteal artery occlusion as a late complication of liquid acrylate embolization for cerebral vascular malformation.

Occlusion of arteriovenous malformations of the brain (BAVMs) by means of an endovascular approach with liquid acrylate glue is an established treatment modality. The specific hazards of this procedure are related to the central nervous system. In the case of unexpectedly rapid polymerization of the cyanoacrylate glue and adhesion of the delivering microcatheter to the BAVM, severing the catheter at the site of vascular access is considered an acceptable and safe management. We present a unique complication related to this technique that has not been described yet. Fragmentation and migration of the microcatheter, originally left in place, had caused popliteal artery occlusion, which required saphenous vein interposition, in a 25-year-old man. Suggestions for avoiding this complication are discussed.

Adult↗

Aneurysm of the popliteal artery in neurofibromatosis.

The neurofibromatoses are a heterogeneous set of genetic disorders having clinical manifestations that involve the skin, the nervous system, or both. In addition, the disease can be confounded by a broad spectrum of complications, such as various kinds of osseous lesion, vascular lesions, aqueduct stenosis, optic glioma, and learning disabilities. Neurofibromatosis results in vascular involvement in approximately 10% of cases. Stenotic lesions predominate, but aneurysms have been documented as well. Rarely noted, however, have been peripheral aneurysms. In this report, we discuss the case of a 66-year-old woman with type 1 neurofibromatosis and a popliteal artery aneurysm who was operated upon because of threatened limb ischemia. Histological findings confirmed neurofibromatous invasion of the vessel wall.

Aged↗

[Rare case of popliteal artery injury caused by distal femoral exostosis. Case report].

Complications of multiple exostoses occur rarely and articles about it can be found occasionally. We found reasonable to report our case because of its rarity. A female patient of 17 was under treatment in the Orthopaedic Clinic with multiple exostoses. Before her admission to the Clinic, a suddenly, painful swelling in the distal-third of the left femur occurred, and then a well detailed examination has done (bone radiograph, angiogramm, MR). The examinations arised the presence of pseudoaneurysm as a background of the swelling of the soft tissue, as well as the possibility of juvenile bone tumor at the same time. During the operation we detected a sharp exostosis on the distal medial condyle of the femur, which occurred a lesion on the popliteal artery. It was the base of forming the pseudoaneurysm. As a conclusion we would like to underline that during the attend of such cases, the presence of vascular surgical team is necessary.

Adolescent↗

Duplex-guided endovascular treatment for occlusive and stenotic lesions of the femoral-popliteal arterial segment: a comparative study in the first 253 cases.

OBJECTIVE: The standard technique of balloon angioplasty with or without subintimal dissection of infrainguinal arteries requires contrast arteriography and fluoroscopy. We attempted to perform this procedure with duplex guidance to avoid the use of nephrotoxic contrast material and eliminate or minimize radiation exposure. METHODS: From September 2003 to June 2005, 196 patients (57% male) with a mean age of 73 +/- 10 years (range, 42-97 years) had a total of 253 attempted balloon angioplasties of the superficial femoral and/or popliteal artery under duplex guidance in 218 limbs. Critical ischemia was the indication in 38% of cases, and disabling claudication was the indication in 62%. Hypertension, diabetes, chronic renal insufficiency, smoking, and coronary artery disease were present in 78%, 51%, 41%, 39%, and 37% of patients, respectively. The TransAtlantic Inter-Society Consensus (TASC) classification was used for morphologic description of femoral-popliteal lesions. The common femoral artery was cannulated under direct duplex visualization. Still under duplex guidance, a guidewire was directed into the proximal superficial femoral artery, across the diseased segment(s), and parked at the tibioperoneal trunk. The diseased segment(s) were then balloon-dilated. Balloon diameter and length were chosen according to arterial measurements obtained by duplex scan. Hemodynamically significant defects causing diameter reductions greater than 30% and peak systolic velocity ratios greater than 2 were stented with a variety of self-expandable stents under duplex guidance. Completion duplex examinations and ankle-brachial indices were obtained routinely before hospital discharge. RESULTS: There were 11 (4%) TASC class A lesions, 31 (12%) TASC class B lesions, 177 (70%) TASC class C lesions, and 34 (14%) TASC class D lesions in this series. The overall technical success was 93% (236/253 cases). Eight of the 17 failed subintimal dissections belonged to TASC class C and the remaining 9 to TASC class D. End-stage renal disease was the only significant predictor of subintimal dissection failure in patients with femoral-popliteal occlusions (5/17 cases; P < .04). Intraluminal stents were placed in 153 (65%) of 236 successful cases. Overall pre-procedure and post-procedure ankle-brachial indices changed from a mean of 0.69 +/- 0.16 (range, 0.2-1.1) to 0.95 +/- 0.14 (range, 0.55-1.3), respectively (P < .0001). The mean duration of follow-up was 10 +/- 7 months (range, 1-29 months). The overall 30-day survival rate was 100%. Overall limb salvage rates were 94% and 90% at 6 and 12 months, respectively. Six-month patency rates for TASC class A, B, C, and D lesions were 89%, 73%, 72%, and 63%, respectively. Twelve-month patency rates for TASC class A, B, C, and D lesions were 89%, 58%, 51%, and 45%, respectively. CONCLUSIONS: Duplex-guided balloon angioplasty and stent placement seems to be a safe and effective technique for the treatment of infrainguinal arterial occlusive disease. Technical advantages include direct visualization of the puncture site, accurate selection of the proper size balloon and stent, and confirmation of the adequacy of the technique by hemodynamic and imaging parameters. Additional benefits are avoidance of radiation exposure and contrast material.

Adult↗