Einfluß von qualitativen Stenosecharakteristika auf die Meßqualität verschiedener QCA-Systeme (Impact of lesion characteristics on the quality of measurements with different QCA systems)

Dietz, Ulrich; Rupprecht, Hans-Juergen; Woltmann, Jon; Blankenberg, Stefan; Fritsch, Heinrich; Brennecke, R.; Meyer, J.

doi:10.1007/s003920050049

Cited by 4 publications

(1 citation statement)

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“…The system and validation data have been described elsewhere [9], and the measurement procedure has been previously published in detail [10]. Analyses of angiographic examinations conducted before and after all procedures were performed.…”

Section: Methodsmentioning

confidence: 99%

Angiographic Outcome in Multivessel Disease (GABI II Study) Using New Coronary Device Interventions and Comparison with GABI I Trial Results

Dietz¹,

Baldus

Rupprecht

et al. 2004

Cardiology

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Percutaneous coronary interventions using stents were investigated in patients with multivessel disease. Acute and long-term results were compared with those of the German Angioplasty Bypass Surgery Investigation trial in a prospective multicenter study. The study included 134 patients in whom 277 lesions were treated. Angiographic success and procedural success were achieved in 268 of 277 lesions (97%) and 118 of 134 patients (88%), respectively. Control angiography performed in 90 of 118 eligible patients (76%) exhibited restenosis in 43 of 182 lesions (24%). Multivariate regression analysis found that a diffuse lesion, the lesion and stent length, and the final luminal diameter were predictive for restenosis. Thus, immediate and long-term results of multivessel coronary intervention utilizing stents were improved compared to percutaneous transluminal coronary angioplasty of multivessel lesions. However, there is still need for improvement of long-term results, especially in particular lesion subgroups.

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Section: Methodsmentioning

confidence: 99%

Angiographic Outcome in Multivessel Disease (GABI II Study) Using New Coronary Device Interventions and Comparison with GABI I Trial Results

Dietz¹,

Baldus

Rupprecht

et al. 2004

Cardiology

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Angiographic analysis of immediate and long‐term results of PTCR vs. PTCA in complex lesions (COBRA study)

Dietz¹,

Rupprecht²,

Ekinci³

et al. 2001

Cathet Cardio Intervent

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We conducted a prospective, randomized trial to compare immediate and long-term effects of percutaneous transluminal coronary angioplasty (PTCA) and high-frequency rotational atherectomy (PTCR) in patients with angiographically predefined complex coronary artery lesions (AHA type B2 and C). The relation of lesion characteristics to procedural results is reported in this angiographic analysis. Patients were randomly assigned to balloon angioplasty (n = 250 patients) or rotational atherectomy (n = 252 patients). Quantitative coronary angiography could be performed in 447 patients to evaluate immediate results and in 293 patients with a 6-month angiographic follow-up. Procedural success was comparable in the PTCR and in the PTCA group (80% vs. 76%, P = 0.260). The need for stent implantation due to a residual stenosis >50% or a bail-out situation was significantly higher in the PTCA group (9.7% vs. 2.0%, P = 0.001). In both treatment groups, diameter stenosis was effectively reduced and MLD increased. The acute gain did not differ between the two groups. At 6-month control, the restenosis rate was comparable in the PTCR and in the PTCA group (37% vs. 35%, P = 0.658), whereas diameter stenosis was significantly more severe in the PTCR group than in the PTCA group (52% vs. 46%, P = 0.039) and, correspondingly, the MLD was significantly smaller in the PTCR group (1.29 mm vs. 1.44 mm, P = 0.031). Late loss was about the same in both groups, however, net gain and net gain index were significantly higher in the PTCA group (0.82 mm vs. 0.64 mm, P = 0.008; and 31% vs. 24%, P = 0.009). Analysis of procedural results for various lesion characteristics revealed no significant difference between treatment groups. In this randomized trial, complex coronary artery lesions were treated with comparable results for angiographic and procedural success and the restenosis rate by both, PTCA and PTCR. Late loss, however, was significantly higher and net gain significantly smaller after PTCR. Stents, although infrequently used, had a relevant impact on immediate PTCA results but not on late results. Cathet Cardiovasc Intervent 2001;53:359-367.

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Angiographic analysis of the angioplasty versus rotational atherectomy for the treatment of diffuse in-stent restenosis trial (ARTIST)

Dietz¹,

Rupprecht²,

Belder³

et al. 2002

The American Journal of Cardiology

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Einfluß von qualitativen Stenosecharakteristika auf die Meßqualität verschiedener QCA-Systeme (Impact of lesion characteristics on the quality of measurements with different QCA systems)

Cited by 4 publications

References 0 publications

Angiographic Outcome in Multivessel Disease (GABI II Study) Using New Coronary Device Interventions and Comparison with GABI I Trial Results

Angiographic Outcome in Multivessel Disease (GABI II Study) Using New Coronary Device Interventions and Comparison with GABI I Trial Results

Angiographic analysis of immediate and long‐term results of PTCR vs. PTCA in complex lesions (COBRA study)

Angiographic analysis of the angioplasty versus rotational atherectomy for the treatment of diffuse in-stent restenosis trial (ARTIST)

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