ライフサイエンスコーパス: ostial

1 mplications of segmental pulmonary vein (PV) ostial ablation during atrial fibrillation (AF).

2 Segmental ostial ablation guided by PV tachycardia during AF is fe

3 Segmental ostial ablation of the pulmonary veins (PVs) allows for

4 a sensitivity and specificity for a required ostial ablation site of 83% and 82%, respectively.

5 During sinus rhythm, ostial ablation was guided by PV potentials.

6 During AF, ostial ablation was performed near the Lasso catheter el

7 11 years) with AF undergoing pulmonary vein ostial ablation.

8 ed atrial electrograms at the pulmonary vein ostial and antral areas, various regions of the left atr

9 re present in affected porokeratotic eccrine ostial and dermal duct nevus (PEODDN) tissue but absent

10 were: 1) local hypersensitivity reaction; 2) ostial and/or bifurcation stenting; 3) malapposition/inc

11 rization in hypertensive patients with aorto-ostial atherosclerotic renal artery lesions.

12 In hypertensive patients with aorto-ostial atherosclerotic renal artery stenosis in whom PTR

13 graft, left main coronary artery disease, or ostial, bifurcated, or totally occluded lesions, as well

14 use recommendation) and untested (left main, ostial, bifurcation, or total occlusion lesions) indicat

15 gle-vessel stenoses, complex bifurcation and ostial branch stenoses, multivessel coronary artery dise

16 Segmental ostial catheter ablation (SOCA) to isolate the pulmonary

17 rdium, as opposed to a fate as inflow tract (ostial) cells.

18 ial device malposition in 15.3% of cases and ostial coronary obstruction in 3.5%.

19 fficacy concerns include device malposition, ostial coronary obstruction, and high gradients after th

20 en-subject variability of the pulmonary vein ostial cross-sectional area and the left artial volume i

21 Between-subject variability of the PV ostial cross-sectional area ranged from 33% to 48%.

22 With electroporation ablation, PV ostial diameter decreased 11+/-10% directly after ablati

23 With radiofrequency ablation, PV ostial diameter decreased 23+/-15% directly after ablati

24 ions (SB diameter >/=2.5 mm) and significant ostial disease length (>/=5 mm) were randomized to eithe

25 h large side branches (SBs) with significant ostial disease length are considered by expert consensus

26 angioplasty after rotational atherectomy for ostial, eccentric, ulcerated and calcified lesions and l

27 e effects of vascular brachytherapy (VBT) on ostial in-stent restenosis (ISR).

28 ing with better imaging techniques to ensure ostial isolation and to guide power titration.

29 rcular mapping in 537 (distal isolation, 25; ostial isolation based on PV angiography, 102; guided by

30 solation can be achieved with fewer lesions, ostial isolation is required in the majority of patients

31 Each patient underwent ostial isolation of all PVs using a cooled-tip ablation

32 In the remaining 190 patients (group 2), ostial isolation of all PVs was performed using 4-mm tip

33 rrently, 2 main approaches are used for PVI: ostial isolation of the PVs and wide antral PVI.

34 evaluated 133 patients with native coronary ostial ISR from a pooled database of 990 patients enroll

35 Conventional treatment of ostial ISR is associated with a recurrence rate of over

36 The recurrence rate of ostial ISR lesions and the impact of VBT remain unknown.

37 strategy had a higher recurrence rate at the ostial LCX but without an associated increased risk of M

38 Coronary sinus ostial lead dislodgement was not observed after discharg

39 Ostial lesion location and IVUS preinterventional plaque

40 tors of the follow-up angiographic findings: ostial lesion location, IVUS preinterventional lesion si

41 ery ratio <0.6, ISR in <90 days of stenting, ostial lesion, stent for a restenotic lesion and diffuse

42 Vascular brachytherapy of true aorto-ostial lesions (n = 34) was similarly beneficial: resten

43 In multivariable analysis, ostial lesions (p = 0.049) and impaired left ventricular

44 lerosis eliminates early aortic and coronary ostial lesions and reduces lesional size in advanced dis

45 with balloon angioplasty such as renal aorto-ostial lesions and restenotic lesions, as well as after

46 ) score, treatment of saphenous vein grafts, ostial lesions, and in-stent restenosis.

47 therectomy and excimer laser angioplasty for ostial lesions, but not for any other lesion subsets.

48 ight coronary artery, saphenous vein grafts, ostial lesions, or in-stent restenosis.

49 lar benefits after VBT prevail in true aorto-ostial lesions.

50 Early SVG failure is mostly proximal or ostial, lesions appear focal, and early SVGs appear smal

51 gy/American Heart Association type C lesion, ostial location, and previous PCI).

52 sease; procedure- and lesion-related such as ostial location, multilesion angioplasty, location in th

53 y SVG failure lesion location was more often ostial or proximal (62% vs. 42%, respectively).

54 a significant incidence of complex coronary ostial origin and branching including single coronary (n

55 High right atrial and coronary sinus ostial pacing do not differ in efficacy.

56 High right atrial pacing and coronary sinus ostial pacing had similar efficacy for AF prevention.

57 Ostial size was not predictive of final ostial patency and symptomatic resolution of epiphora.

58 r ablation technologies and of distal versus ostial pulmonary veins (PV) isolation using the circular

59 nic PVs was initially performed by segmental ostial PV ablation guided by a circular mapping catheter

60 During SOCA, ostial PV potentials recorded with a ring catheter were

61 nt (12) AF, segmental PV isolation guided by ostial PV potentials was performed.

62 wide antral approach is more effective than ostial PVI in achieving freedom from total atrial tachya

63 with de novo or restenotic > or = 70% aorto-ostial renal artery stenoses, who underwent implantation

64 again within two months with near-occlusive ostial restenosis in all stents placed.

65 We excluded patients with left main or ostial right coronary artery stenoses, bypass graft sten

66 There was significant ostial shrinkage from surgery to 4 weeks (mean shrinkage

67 activation pattern is a strong predictor of ostial sites where ablative energy is required to electr

68 Ostial size was not predictive of final ostial patency a

69 e totally occluded (n = 6) or compromised by ostial stenoses (n = 5).

70 No coronary ostial stenoses were seen.

71 Biventricular patients with an ostial stenosis had a higher probability of a successful

72 91 years; mean, 70 years) had mild to severe ostial stenosis of a single vertebral artery, and eight

73 In the multivariate analysis, ostial stenosis was significantly associated with proced

74 verely calcified, restenotic, thrombotic, or ostial; total occlusions; bifurcations; saphenous vein g

75 earching electronic databases for studies on ostial versus antral PVI.

76 VR (7.4% vs. 8.6%, p = 0.61), and those with ostial versus nonostial LM stents (10.3% vs. 15.6%, p =

77 ts with normal flow (P < .01) and those with ostial vertebral artery stenosis (P < .01).

78 In eight of nine patients with ostial vertebral artery stenosis and eight controls, bot