Pathologic Constriction (Stenosis)

01/01/1987 - "To establish the most meaningful scoring system, we developed the grading of stenosis which is "critical" or significant in the single-, double-, and triple-vessel method (SDT), and the extent of improvement in the predictive value which may be induced by accounting for the predominance of the three major coronary arteries nourishing the left ventricle. "
08/01/1979 - "The best results can be expected in patients with single-vessel disease, with a short history of angina (less than 1 year), and with narrow, noncalcified proximal stenosis. "
03/01/1992 - "However, in cases of good collateral circulation, no case showed a complete defect when the target vessel had improved to less than 75% of stenosis. "
03/01/1992 - "In 16 cases of poor collateral circulation, six cases showed a complete defect, although the target vessel had improved to less than 75% of stenosis. "
11/01/2015 - "FLAIR hyperintense vessel scores were significantly higher on T2-PROPELLER-FLAIR than on T2-FLAIR (3.50 ± 2.79 versus 1.21 ± 1.47, P < .01), and the sensitivity for large-artery stenosis was significantly improved on T2-PROPELLER-FLAIR (93% versus 68%, P = .03). "

12/01/2015 - "Minimal luminal diameter or percent stenosis improved significantly from baseline after 2 BU runs, but no further gain was seen between 2 and 4 BU runs (P > .05). "
09/01/2013 - "Using the CARD technique, needle knife dissection and APC, individually or in combination, luminal patency of occlusive esophageal strictures can be accomplished safely with good results."
06/01/2010 - "Using DSA as the "gold standard," sensitivities and specificities for detecting significant arterial stenoses (>/=50% luminal narrowing) with first-pass WB-MRA, SS-MRA, and combined first-pass and SS-MRA were calculated. "
10/15/2008 - "We compared both quantitative coronary angiography (QCA) and MSCT to the gold standard for a significant stenosis-minimum luminal area (MLA) by intravascular ultrasound (IVUS)-in 51 patients (64 +/- 10 years old, 19 men) with 69 angiographically ambiguous, nonleft main lesions. "
03/21/2006 - "In coronary arteries with <50% stenosis, there were no temporal changes in luminal and plaque dimensions measured by quantitative coronary angiography or IVUS; however, a significant reduction in abnormal strain pattern was detected on palpography (density high strain spots/cm: 1.6 +/- 1.5 vs. 1.2 +/- 1.4, p = 0.0123. "

07/01/2008 - "In the high-dose mitomycin group, most rabbits progressed to stenosis with a percentage decrease in airway diameter that was significantly greater than in the other 2 groups (P <.001). "
02/01/2007 - "Although this is supported by basic science studies and its successful use in other fields, the clinical evidence to date has not shown the application of mitomycin C to be effective in preventing stenosis after endoscopic sinus surgery. "
11/01/2013 - "Topical application of mitomycin-C (MMC) as an adjuvant treatment for endoscopic management of stenosis has shown good results. "
11/01/2001 - "Application of topical mitomycin-C after lysis of an anterior glottic stenosis produces a statistically significant reduction in the rate of restenosis as compared to surgical lysis alone."
09/01/2014 - "Local application of mitomycin-c (MMC) seems to be effective in reducing adhesions and stenosis after FESS. "

04/01/2011 - "This new partially covered nitinol SEMS is easily inserted, and safe and effective in the palliation of biliary obstruction secondary to malignant bile duct strictures."
10/01/2014 - "The aim of this study was to assess the success of stricture cannulation using a combination of a flexible guidewire and a stable nitinol wire vs. a novel, single, stiff-shaft, flexible-tip guidewire. "
12/01/2010 - "The hemocompatibility of expanded polytetrafluorethylene (ePTFE), untreated thin film nitinol (UTFN), and a surface treated superhydrophilic thin film nitinol (STFN) was compared using an in vitro circulation model with whole blood under flow conditions simulating a moderate arterial stenosis. "
03/01/2006 - "Ultraflex nitinol SEMS were placed under endoscopic guidance in patients with malignant esophageal strictures. "
05/01/1999 - "A total of 14 ureteral strictures (5 malignant, 9 non-malignant) in 13 patients were treated by the implantation of a Nitinol endoprosthesis. "

12/01/2001 - "However, 4 weeks after PDT there was no significant reduction in bile duct stenoses. "
01/01/2008 - "PDT was effective for airway stenosis in rabbit models. "
01/01/2002 - "The aim of this study was to evaluate the efficacy of ALA compared to Photosan for PDT in malignant tracheo-bronchial stenosis. "
01/01/2015 - "ERC after PDT revealed a dramatic improvement in the bile duct stenosis, and the nodular lesion had disappeared. "
09/01/2007 - "The aim of the present study was to examine whether a photosensitizer preferentially accumulates in the lesion of airway stenosis in order to explore the possible applicability of PDT. "

02/01/1989 - "The question of efficacy of platelet inhibiting drugs of the aspirin type, with regard to prophylaxis of early and late re-stenosis remains unsettled. "
01/01/2006 - "Our study suggests that aspirin is the treatment of choice for the prevention of vascular events in patients with symptomatic MCA stenosis."
01/01/2014 - "Safety of low-dose aspirin in endovascular treatment for intracranial atherosclerotic stenosis."
10/01/2013 - "Patients who were prescribed aspirin developed 1.6 (P 0.01) times more stenoses than those not treated with aspirin. "
01/01/2013 - "We prospectively screened patients with circumscribed high-grade stenosis or occlusion of brain-supplying vessels fulfilling the hemodynamic criteria for EC-IC bypass surgery for aspirin resistance using a platelet function analyzer (PFA-100®) test. "

03/01/1991 - "Repeat cineangiocardiographic studies revealed stenosis or distortion of the pulmonary arteries related to the site of the shunt in 11/22 patients (50%) with PTFE shunts and in 1/6 (17%) with classic Blalock-Taussig shunts; the stenosis was severe in only 1 patient. "
04/01/2011 - "Our bicuspid valved PTFE conduit has an acceptable early performance, with a low incidence of valve insufficiency and no conduit stenosis. "
11/01/2009 - "Proximal conduit stenoses have led us to modify this technique by using ring-enforced polytetrafluoroethylene conduits. "
12/01/2008 - "Intrashunt stenoses within the polytetrafluoroethylene-lined conduit are also rare. "
11/01/2008 - "Teflon was found to have the most appropriate SoS (1376 +/- 40 m s(-1) compared with 1540 m s(-1) in soft tissue) and thus was selected to construct a carotid bifurcation flow model with moderate eccentric stenosis. "

05/01/2001 - "However, this resulted in a significant reduction of stenosis degree of 66 % 8 weeks after intervention compared to the untreated group (untreated 41 +/- 18 % vs paclitaxel treated 14 +/- 11 %, p = 0.005). "
10/01/2014 - "Paclitaxel-coated balloons (PCB) have proved effective in managing postinterventional coronary artery re-stenosis. "
06/01/2014 - "The distinct paclitaxel-eluting balloons showed a similar degree of stenosis at follow-up, which was significantly lower than that in the control group: diameter stenosis was 9% (12%) vs 34% (18%) by angiography (P<.0001) and was 22% (8%) vs 51% (18%) by histomorphometry (P<.0001). "
08/22/2013 - "In histology, percentage area of stenosis (BMS+PCB=29.6 ± 6.4% vs. PES=21.5 ± 3.3% vs. BMS=55.2 ± 12.9%; p<0.01) and neointimal thickness (BMS+PCB=0.26 ± 0.1 mm vs. PES=0.21 ± 0.1 mm vs. BMS=0.59 ± 0.2 mm; p<0.01) were significantly reduced in both paclitaxel groups in comparison to BMS controls. "
06/01/2011 - "In both groups the coronary arteries of native hearts showed no stenosis, but treatment with LDE-paclitaxel reduced the degree of stenosis in grafted hearts by 50%. "

03/01/1997 - "Preliminary experience with a new ultraviolet-cured expandable plastic endoprosthesis in the management of malignant esophageal strictures."
02/01/1901 - "IV. Cicatricial Stricture of Pharynx cured by Plastic Operation."
12/01/2015 - "In conventional anatomy, benign biliary strictures have been treated using fcSEMS, requiring fewer endoscopies compared with multiple plastic stenting. "
01/01/2015 - "Stenosis was also created by inserting plastic tubings in LAD and LCX arterial branches. "
03/01/2014 - "[Replacement plastic reconstruction of extended ureteral stricture using buccal mucosa autograft]."

07/01/1994 - "The range of contractility in which the coronary circulation can meet the myocardial oxygen needs is dramatically reduced by small increases in stenosis severity or small decreases in arteriovenous oxygen difference. "
10/01/2014 - "All procedures were immediately successful, with resolution of stenosis and improvement in transcutaneous oxygen saturation from 66% ± 3.6% to 92% ± 2.6%. "
11/01/2004 - "In children with TOF, the arterial oxygen saturation was increased by 15 percent after PBPV and pulmonary valvular stenosis was relieved. "
04/01/1997 - "The data suggest that increased oxygen extraction in the HBOC group is associated with improved skeletal muscle tissue oxygenation during severe arterial stenosis."
01/01/1990 - "It was not the number and the extent of stenoses, but the interpretation of the myocardial oxygen supply that proved to be helpful for the diagnosis based on the evaluation of the coronary angiogram. "

02/01/2011 - "Most complications were eliminated by ERCP with a papilosfincterotomy, a balloon dilatation of stenosis, and a biliary stent implant with repeated stent replacements (45 cases in total- all patients with biliary stenosis). "
01/06/2009 - "In most bifurcations with a significant stenosis in both branches, a provisional strategy of stenting the main branch only is effective, with the need to implant a second stent on the side branch occurring in approximately one third of cases. "
02/01/2008 - "Carotid stent placement in patients with a unilateral stenosis of the carotid artery resulted in significant improvement in cognitive test scores in this highly selected patient group. "
11/01/2005 - "In this series, the Palmaz stent was most effective in achieving long-term patency in benign biliary strictures."
02/01/2004 - "Temporary placement of partially-covered expandable metallic stents is one of the best methods for benign GIT strictures in mid and long-term therapeutic efficacy."

09/28/2012 - "After a comprehensive review of the literature, it can be concluded that percutaneous angioplasty and stenting of extracranial VA stenosis is technically feasible, but there is insufficient evidence from randomized trials to demonstrate that endovascular management is superior to best medical management."
05/01/1993 - "These results indicate that percutaneous angioplasty is a simple method of treating recoarctation of the aorta, which is most effective in severe stenoses: the immediate risk is low. "
03/01/1982 - "The improvement in left ventricular function after transluminal angioplasty in these cases of proximal left anterior descending coronary arterial stenosis is extremely encouraging."
01/01/2012 - "This case further adds support to a very limited data pool suggesting that percutaneous angioplasty of pulmonary artery stenosis may be a safe and effective treatment option for this unique patient population."
04/01/2002 - "Percutaneous transluminal angioplasty (PTA) has proven to be a safe and effective method of treating subclavian stenosis with technical success rates ranging from 83 to 100%. "

01/01/2016 - "Autologous venous grafts generally give best results for arterial bypass grafting in cases of arterial stenosis. "
01/01/2006 - "Thus, short-term outcomes of urethroplasty with buccal transplant showed this operation to be highly effective in correction of long recurrent strictures of anterior urethra in males."
04/01/2000 - "We find that auricular cartilage grafts are highly effective when used in a primary single-stage procedure in children with grade I or II stenosis. "
09/01/1995 - "Percutaneous techniques are most effective in treating failing but patent angioaccess grafts, especially those with stenoses remote from the venous anastomosis. "
12/01/1987 - "Best results were obtained with a discrete stenosis at a graft-to-vein anastomosis. "

06/01/1986 - "Percutaneous balloon valvuloplasty is probably now the best treatment for pulmonary valvular stenosis. "
08/01/2006 - "Balloon dilation is a safe and effective procedure with excellent long-term results for the treatment of anastomotic strictures secondary to surgical repair of EA in a pediatric population."
03/01/2012 - "Symptomatic short-segment stenoses after LSG may be treated successfully with endoscopic balloon dilation. "
01/01/2004 - "Endoscopic balloon dilation is a safe and effective therapy for stomal stenosis with a high success rate. "
05/01/2000 - "This multi-centric registry shows good results in the intermediate term for treating infants with severe aortic valvar stenosis with balloon valvotomy through a carotid arterial cutdown. "

10/01/2008 - "The pace of development in cardiovascular pharmacology has rendered early investigation of best treatment strategies largely obsolete, while newer revascularization techniques have successfully extended the remit of catheter-based multivessel intervention strategies to include left main stem disease, bifurcation stenosis and chronic occlusions. "
09/01/2004 - "The dilation of benign stenoses of the lower gastrointestinal tract with a balloon catheter is an effective and safe method, which in most cases (70 percent) results in long-term elimination of the obstructive symptoms, so that surgery can be avoided."
03/04/1967 - " is considered that the most important factors contributing to increased cannula survival are improved cannula care by patients and staff, the use of angiography for accurate diagnosis, and prompt anticoagulation if atheromatous stenosis of the venous component is encountered."
12/01/2001 - "We evaluated the long-term efficacy of endoscopic treatment of complete distal ureteral stenosis using a cutting balloon catheter. "
09/30/1989 - "Percutaneous catheter-delivered ultrasound energy appears promising for safe and effective use in atherosclerotic peripheral vessels to reduce arterial stenoses and recanalise complete arterial obstructions."