1/84. Unilateral iliac vein occlusion, caused by bladder enlargement, simulating deep venous thrombosis.A variety of conditions cause unilateral leg swelling and thus mimic deep venous thrombosis (DVT). A heretofore-underappreciated condition that may lead to unilateral iliac vein compression, simulating DVT, is massive enlargement of the bladder caused by urinary retention. A case that demonstrates this condition is described. Although this disorder has been reported only three times before, its occurrence should be recognized by clinicians in light of the overall aging of our society. In addition, this case highlights the need for careful and thorough evaluation of patients who have unilateral lower-extremity edema.- - - - - - - - - - ranking = 1keywords = compression (Clic here for more details about this article) |
2/84. Marked increase in flow velocities during deep expiration: A duplex Doppler sign of celiac artery compression syndrome.Symptoms of chronic mesenteric ischemia develop when the celiac artery is constricted by the median arcuate ligament of the diaphragm. Lateral aortography is the primary modality for diagnosing ligamentous compression of the celiac artery. However, duplex Doppler sonography performed during deep expiration can cause a marked increase in flow velocities at the compressed region of the celiac artery and suggest the diagnosis of celiac arterial constriction due to the diaphragmatic ligament.- - - - - - - - - - ranking = 5keywords = compression (Clic here for more details about this article) |
3/84. Respiratory distress due to tracheal compression by the dilated innominate artery.The case reported is of an 88 yr old female with hypertension and respiratory distress. A chest radiograph revealed a widening of the upper mediastinum. Computed tomographic scanning revealed tracheal compression by the innominate artery, which was elongated and curved. After intubation, she was treated with antihypertensive drugs. This resulted in the remarkable recovery of the patient from respiratory distress. To the authors' knowledge, this is the first reported case of respiratory distress owing to tracheal compression by elongation and curvature of the innominate artery.- - - - - - - - - - ranking = 6keywords = compression (Clic here for more details about this article) |
4/84. Soleus rupture: a differential diagnosis of calf thrombosis.Soleus rupture may present with clinical features similar to those of calf thrombosis. It is postulated that the signs are the result of compression of the posterior tibial vein as it passes through the narrow space adjacent to the fibrous origin of soleus. A distinctive venographic sign of compression of the posterior tibial vein by a soft tissue mass at the level of the origin of the soleus is described.- - - - - - - - - - ranking = 2keywords = compression (Clic here for more details about this article) |
5/84. Crushed stents in benign left brachiocephalic vein stenoses.Two hemodialysis patients presenting with left venous arm congestion due to benign catheter-induced stenosis of the left brachiocephalic vein were treated by angioplasty and stent placement. External compression of the stents was responsible for rapid recurrence of the symptoms. No osseous or vascular malformation could be identified. Mechanical constraints induced by respiratory chest wall motion and aortic arch flow-related pulsation are proposed to explain this observation. This potential hazard should be considered when stent placement into the left brachiocephalic vein is advocated.- - - - - - - - - - ranking = 1keywords = compression (Clic here for more details about this article) |
6/84. Intermittent brachiocephalic vein obstruction secondary to a thymic cyst.Mediastinal thymic cysts are usually asymptomatic and found incidentally on a routine chest roentgenogram. Rarely, they may cause symptoms of vascular obstruction. A 55-year-old woman presented with intermittent swelling in her left neck. The swelling was positional and was worse while supine and disappeared while upright. Evaluation revealed a thymic cyst causing extrinsic compression of the left brachiocephalic vein. The cyst was resected with complete resolution of the left neck swelling.- - - - - - - - - - ranking = 1keywords = compression (Clic here for more details about this article) |
7/84. Rotational compression of the vertebral artery at the point of dural penetration. Case report.vertebrobasilar insufficiency (VBI) due to vertebral artery (VA) compression occurs in a significant number of patients. Rotational compression of the VA usually occurs below C-2, where the artery is pinched during head rotation, leading to thrombus formation and subsequent cerebellar infarction. Although this problem has been reported to occur at the atlantooccipital levels, a review of the literature revealed no published cases of VA compression at the point of dural penetration, which is located above the atlantooccipital membrane. The authors report the case of a 30-year-old woman who presented with signs and symptoms of VBI. Dynamic angiography demonstrated left-sided VA compression at the site at which dural penetration had occurred, proximal to the posterior inferior cerebellar artery. Surgical decompression of the left VA at the point of dural penetration relieved the symptoms, and postoperative dynamic angiography demonstrated complete resolution of the positional compression of the left VA. Because of these findings, an additional possible location for rotational compression of the VA is described, namely, the point of dural penetration. The authors suggest a method of surgically treating rotational VA compression at this site.- - - - - - - - - - ranking = 12keywords = compression (Clic here for more details about this article) |
8/84. Intermittent vertebral artery compression caused by C1-root schwannoma: case report.Extradural schwannomas of the C1-root are extremely rare. As the tumor grows in size, it may compress surrounding neurovascular structures and cause symptoms. In the present case report, the left vertebral artery (VA) was severely compressed by the tumor, eliciting severe vertigo on turning the head to the right side and with neck extension. We report a 52-year-old man who presented with a history of intermittent episodes of severe vertigo on head movement that was caused by a C1-root schwannoma. The lesion was exposed through an extreme lateral transcondylar approach. At exposure the lesion was yellowish in color and was extradural in location lying between the markedly eroded C1-posterior arch and the compressed vertebral artery (V3) on the left side. The medial portion of the tumor was attached to the C1-nerve root. The tumor was excised enbloc with decompression of the VA. The patient's symptoms completely resolved immediately following surgery, with no recurrence of the symptoms at one year follow up. The vertebral artery may frequently be compressed by osteophytes in cervical spondylosis or due to other causes in the cervical spinal canal, but compression of the artery by C1 extradural schwannoma with vascular insufficiency is rare. Removel of the tumor and the resultant decompression of the artery can be facilitated by the extreme lateral approach as demonstrated by this case.- - - - - - - - - - ranking = 7keywords = compression (Clic here for more details about this article) |
9/84. Cervical myelopathy due to compression by bilateral vertebral arteries--case report.A 69-year-old man presented with progressive cervical myelopathy due to vascular compression of the upper cervical spinal cord. Vertebral angiography and magnetic resonance imaging revealed that the elongated bilateral vertebral arteries (VAs) had compressed the spinal cord at the C-2 level. The spinal cord was surgically decompressed laterally by retracting the VAs with Gore-Tex tape and anchoring them to the dura. The patient's symptoms improved postoperatively. decompression and anchoring of the causative vessels is recommended due to the large size of the VAs.- - - - - - - - - - ranking = 6keywords = compression (Clic here for more details about this article) |
10/84. Endovascular repair of latrogenic subclavian artery perforations using the Hemobahn stent-graft.PURPOSE: To report the use of a new self-expanding endograft for percutaneous treatment of iatrogenic subclavian artery perforations. case reports: The subclavian artery of 2 patients was inadvertently cannulated during percutaneous attempts to implant a permanent pacemaker in one and catheterize the subclavian vein in the other. Because both patients had serious comorbidities, endovascular repair of the subclavian perforations was performed using the Hemobahn endograft, a nitinol stent covered internally with expanded polytetrafluoroethylene. The endoprostheses were successfully deployed via an ipsilateral brachial artery access. No signs of endograft occlusion, migration, deformation, or fracture have been observed during follow-up at 12 and 10 months, respectively, in these patients. CONCLUSIONS: The Hemobahn stent-graft appears well suited to repairing subclavian artery injuries. Longer follow-up will determine if the design of this endograft will resist compression in this vascular location.- - - - - - - - - - ranking = 1.0119425714938keywords = compression, fracture (Clic here for more details about this article) |
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