Abstract:
PURPOSE:To evaluate initial results in patients with epiphora secondary to obstruction of the nasolacrimal duct treated by placement of a polyurethane stent, and to discuss the technical problems and complications arising during the procedure, with visualization of the anatomy of the drainage apparatus using computed tomography (CT). METHODS:We inserted 20 polyurethane Song stents under fluoroscopic guidance after dacryocystography in 19 patients with grade 3-4 epiphora caused by idiopathic obstruction of the nasolacrimal duct. CT scans were obtained following stent placement in all patients. RESULTS:We focus on the technical problems and complications that arose during these procedures. During negotiation of the guidewire past the obstruction at the level of the junction of the duct with the lacrimal sac, the guidewire created a false passage in a posterior suborbital direction in two cases and towards the posterior midline in another. In all cases the guidewire was withdrawn and reinserted through the proper anatomic route without further difficulty or complications. In two cases the stent was improperly positioned wholly or partially outside the nasolacrimal system (one medially, one posteriorly). In one case the stent was removed and reinserted; in the other it remains in place and functional. CT was performed in all these cases to ensure proper anatomic alignment and determine what had gone wrong. The epiphora was completely resolved in 13 cases and partially relieved in four; there were three cases of stent obstruction. Epistaxis of short duration (1 hr) occurred in seven patients and headache in one. CONCLUSIONS:Treatment of epiphora with polyurethane stents is a technique that is well tolerated by patients and achieves a high success rate, yet problems in placement may be encountered. Though no major consequences for patients are involved, cognizance of such difficulties is important to avoid incorrect positioning of stents.
journal_name
Cardiovasc Intervent Radioljournal_title
Cardiovascular and interventional radiologyauthors
Pinto IT,Paul L,Grande Cdoi
10.1007/s002709900302subject
Has Abstractpub_date
1998-11-01 00:00:00pages
450-3issue
6eissn
0174-1551issn
1432-086Xjournal_volume
21pub_type
临床试验,杂志文章abstract:PURPOSE:This technical note describes the novel use of a curved, steerable needle to access symptomatic osseous lesions in the pelvis and sacrum for palliative percutaneous treatment that would otherwise be difficult to treat using conventional straight needles. MATERIALS AND METHODS:Seven patients with lytic bone les...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/s00270-012-0482-1
更新日期:2013-04-01 00:00:00
abstract:PURPOSE:To report a novel transcardiac retrograde transvenous coil embolization of inadequately proximally occluded pulmonary arteriovenous malformation (AVM). METHODS:Pulmonary AVM in the right A4 segment in an 8-year-old boy with hereditary hemorrhagic telangiectasia was initially treated by proximal occlusion of th...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/s00270-013-0755-3
更新日期:2014-06-01 00:00:00
abstract:PURPOSE:Ruptured cerebral arterial aneurysms require prompt treatment by either surgical clipping or endovascular coiling. Training for these sophisticated endovascular procedures is essential and ideally performed in animals before their use in humans. Simulators and established animal models have shown drawbacks with...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/s00270-012-0431-z
更新日期:2013-02-01 00:00:00
abstract:PURPOSE:Compare the success of three coaxial fine-needle biopsy techniques in obtaining multiple cytologic specimens of high quality. METHODS:For each of three different biopsy needle and technique combinations (aspiration: 22-gauge Chiba; capillary: 22-gauge Chiba; 22-gauge Autovac aspiration biopsy gun), 30 sites (1...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/BF00203681
更新日期:1995-09-01 00:00:00
abstract:BACKGROUND:In patients with colorectal cancer liver metastases (CRLM), right portal vein embolisation (RPVE) is used to increase the volume of the future remnant liver (FRL) before major hepatic resection. It is not established whether embolisation of segment 4 in addition RPVE (RPVE + 4) induces greater hypertrophy of...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/s00270-018-02159-5
更新日期:2019-04-01 00:00:00
abstract::A 16-year-old female patient with recurrent stenosis after unilateral choanal atresia that had been treated by surgery and laser therapy presented with restenosis 3 weeks after laser resection. As an alternative to repeat surgery, she was treated by balloon dilatation. Four balloon dilatations were performed (three at...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/s002700010110
更新日期:2000-11-01 00:00:00
abstract::A case is presented in which massive retroperitoneal hemorrhage from the left first lumbar artery complicating a percutaneous renal biopsy was successfully controlled by superselective embolization with microcoils. An anterior radiculomedullary artery (artery of Adamkiewicz) originated from the lumbar artery. To minim...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/BF02577724
更新日期:1991-05-01 00:00:00
abstract:PURPOSE:It has been hypothesized that microstents which are used to prevent coil protrusion in the treatment of cerebral aneurysms may have flow diverting and therefore occlusive effects. In a rabbit elastase aneurysm model, we investigated the aneurysm occlusion rate and vessel reaction of a braided Accero stent proto...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/s00270-019-02345-z
更新日期:2019-12-01 00:00:00
abstract::A renal pseudotumor caused by a small portion of normal spleen receiving blood supply from a renal capsular artery is described. CT with nonselective enhancement and liver/spleen scan may fail to delineate this previously unreported finding. CT angiography, however, can establish the diagnosis. The consideration of th...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/BF02578632
更新日期:1990-10-01 00:00:00
abstract::A 55-year-old man presented with a case of postoperative enterocutaneous fistula with anastomotic stenosis after a Billroth I operation that was resistant to conservative treatment. This fistula was successfully treated with the placement of a covered metallic stent under fluoroscopic guidance. To our knowledge, this ...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/s00270-004-0103-8
更新日期:2005-01-01 00:00:00
abstract::A new basket, developed for percutaneous removal of wall-adherent thrombi, was tested in model thrombosed hemodialysis shunts and clinically in two polytetrafluoroethylene grafts and one Brescia-Cimino shunt after recanalization by aspiration thrombectomy. The residual wall-adherent thrombus was removed by one or two ...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/BF02603029
更新日期:1993-01-01 00:00:00
abstract:PURPOSE:To determine the influence of preoperative aneurysmal thrombus quantity and distribution on the development of type II endoleak with aneurysm sac enlargement after endovascular aneurysm repair (EVAR). MATERIALS AND METHODS:We retrospectively analyzed the pre- and postoperatively performed CT scans of 118 patie...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/s00270-016-1386-2
更新日期:2016-08-01 00:00:00
abstract:OBJECTIVE:This study was designed to evaluate the clinical application of preoperative auxiliary embolization for juvenile nasopharyngeal angiofibroma (JNA) by direct puncture embolization (DPE) of the tumor in combination with transarterial embolization (TAE). METHODS:The study included 22 patients. An 18-gauge needl...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/s00270-012-0404-2
更新日期:2013-02-01 00:00:00
abstract:PURPOSE:To perform a systemic review to determine the effect of anticoagulation on the rates of venous thromboembolism (pulmonary embolus, deep venous thrombosis, inferior vena cava (IVC) filter thrombosis) following placement of an IVC filter. METHODS:A comprehensive computerized literature search was performed to id...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章,评审
doi:10.1007/s00270-007-9244-x
更新日期:2008-03-01 00:00:00
abstract::We describe a most unusual problem of a split needle following a lung radiofrequency ablation (RFA) procedure. We encountered the problem when retracting the electrode hooks into the shaft at completion of the ablation. We describe the process we adopted to overcome this problem. Charring of the ablated tissue can cau...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/s00270-003-0087-9
更新日期:2003-11-01 00:00:00
abstract::Segmental arterial mediolysis (SAM) is an uncommon self-limited disorder that can cause abdominal catastrophes through massive bleeding or bowel infarction. The former arise from arterial aneurysms, and the latter from arterial stenosis or occlusions. Although this is an acute self-limiting disease, the catastrophic c...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/s00270-009-9651-2
更新日期:2010-06-01 00:00:00
abstract::We describe a technique that extracted a ruptured angioplasty balloon which had become entrapped by a calcified left common iliac artery stenosis. The balloon catheter had been advanced crossover from the right and could not be retracted directly into a sheath across the aortic bifurcation. Therefore, a guidewire was ...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/BF02577632
更新日期:1996-11-01 00:00:00
abstract::Atresia of the coronary sinus (ACS) is a rare congenital anomaly. When associated with persistent left superior vena cava (PLSVC), this defect could have no significant hemodynamic effect, and the patient might remain asymptomatic. However, vascular interventions might induce changes or complications that could show t...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/s00270-013-0719-7
更新日期:2014-06-01 00:00:00
abstract::The "arterial plug" is a resistant thrombus that frequently persists at the arterial anastomosis of clotted hemodialysis grafts following thrombolytic therapy. We studied the physical and morphological characteristics of the plug and determined the feasibility of transcatheter removal in vitro using the tulip compress...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/s002709900126
更新日期:1997-03-01 00:00:00
abstract::Two patients with pseudocoarctation complicated by dissection are presented. They are the first cases in which pseudocoarctation with dissection have been imaged by magnetic resonance (MR). MR imaging is an excellent noninvasive modality in the evaluation of dissection in pseudocoarctation of the aorta. ...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/BF02641888
更新日期:1993-05-01 00:00:00
abstract:PURPOSE:To assess the feasibility and effectiveness of emergency endovascular treatment of abdominal aortic aneurysms (AAAs). METHODS:During 36 months we treated, on an emergency basis, 30 AAAs with endovascular exclusion. In 21 hemodynamically stable patients preoperative CT angiography (CTA) was performed to confirm...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/s00270-005-0080-6
更新日期:2006-03-01 00:00:00
abstract::The purpose of this study was to demonstrate feasibility of percutaneous transluminal aortic stenting and cava filter placement under magnetic resonance imaging (MRI) guidance exclusively using a polyetheretherketone (PEEK)-based MRI-compatible guidewire. Percutaneous transluminal aortic stenting and cava filter place...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/s00270-008-9483-5
更新日期:2009-05-01 00:00:00
abstract::We describe a successful percutaneous transluminal dilatation (PTD) of an innominate artery stenosis in a 40-year-old patient with aortic arch syndrome. Five years earlier both a left central carotid artery occlusion and an innominate and left subclavian artery stenosis were treated by grafting from the aorta to the d...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/BF02552777
更新日期:1983-01-01 00:00:00
abstract::Anatomic variations in the major arteries of the upper extremities have been reported in 11-24.4% of individuals. In a review of 100 upper extremity arteriograms, we found an overall incidence of 9%. High origin of the radial artery from the brachial artery was the most frequently encountered anomaly occurring in 7% o...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/BF02577379
更新日期:1989-05-01 00:00:00
abstract:OBJECTIVE:To investigate the accuracy, procedure time, fluoroscopy time, and dose area product (DAP) of needle placement during percutaneous vertebroplasty (PVP) using cone-beam computed tomography (CBCT) guidance versus fluoroscopy. MATERIALS AND METHODS:On 4 spine phantoms with 11 vertebrae (Th7-L5), 4 interventiona...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/s00270-013-0598-y
更新日期:2013-08-01 00:00:00
abstract::The purpose of this study was to evaluate the efficacy of percutaneous endovascular techniques for the treatment of hepatic artery stenosis (HAS) occurring after liver transplantation (LT) in adult and pediatrics patients. From February 2003 to March 2009, 25 patients (15 adults and 10 children) whose developed HAS af...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/s00270-010-9848-4
更新日期:2010-12-01 00:00:00
abstract::We describe a technique for gaining access to the central collecting system via a chosen calyx, utilizing an alternative entry point to that calyx. An Amplatz nitinol loop snare is then used to convert this access to a traditional approach. ...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:
更新日期:1996-05-01 00:00:00
abstract:PURPOSE:We aimed to evaluate the long-term efficacy of percutaneous management of non-anastomotic biliary stenosis after liver transplantation, using plastic internal biliary stents. MATERIALS AND METHODS:This study included 35 cases (28 men, 7 women; mean age: 52.09 ± 8.13 years, range 34-68) in 33 patients who neede...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/s00270-016-1297-2
更新日期:2016-06-01 00:00:00
abstract:PURPOSE:To evaluate injection-associated pain, safety, and efficacy with the isotonic contrast medium iodixanol (Visipaque 270 mg I/ml) compared with iopromide (Ultravist 300 mg I/ml) in femoral arteriography. METHODS:A multicenter, double-blind, randomized, parallel-group clinical investigation was carried out in 54 ...
journal_title:Cardiovascular and interventional radiology
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1007/s002709900147
更新日期:1997-07-01 00:00:00
abstract:PURPOSE:This study aimed to retrospectively evaluate the safety and efficacy of ureteral stent placement using the rendezvous technique for the treatment of postoperative ureteral complications in cancer patients. MATERIALS AND METHODS:From January 2005 to April 2015, 19 patients (2 men and 17 women; median age, 59; r...
journal_title:Cardiovascular and interventional radiology
pub_type: 杂志文章
doi:10.1007/s00270-020-02546-x
更新日期:2020-10-01 00:00:00