Long-term results after fluoroscopy-guided closure of patent foramen ovale for secondary prevention of paradoxical embolism

被引:67
作者
Wahl, A. [1 ]
Kunz, M. [1 ]
Moschovitis, A. [1 ]
Nageh, T. [1 ]
Schwerzmann, M. [1 ]
Seiler, C. [1 ]
Mattle, H. P. [2 ]
Windecker, S. [1 ]
Meier, B. [1 ]
机构
[1] Univ Hosp Bern, Dept Cardiol, Swiss Cardiovasc Ctr Bern, CH-3010 Bern, Switzerland
[2] Univ Hosp Bern, Dept Neurol, Bern, Switzerland
关键词
D O I
10.1136/hrt.2007.118505
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Objectives: To carry out long-term follow-up after percutaneous closure of patent foramen ovale (PFO) in patients with cryptogenic stroke. Design: Prospective cohort study. Setting: Single tertiary care centre. Participants: 525 consecutive patients (mean (SD) age 51 (12) years; 56% male). Interventions: Percutaneous PFO closure without intra-procedural echocardiography. Main outcome measures: Freedom from recurrent embolic events. Results: A mean (SD) of 1.7 (1.0) clinically apparent embolic events occurred for each patient, and 186 patients (35%) had >1 event. An atrial septal aneurysm was associated with the PFO in 161 patients (31%). All patients were followed up prospectively for up to 11 years. The implantation procedure failed in two patients (0.4%). There were 13 procedural complications (2.5%) without any long-term sequelae. Contrast transoesophageal echocardiography at 6 months showed complete closure in 86% of patients, and a minimal, moderate or large residual shunt in 9%, 3% and 2%, respectively. Patients with small occluders (, 30 mm; n = 429) had fewer residual shunts (small 11% vs large 27%; p<0.001). During a mean (SD) follow-up of 2.9 (2.2) years (median 2.3 years; total 1534 patient-years), six ischaemic strokes, nine transient ischaemic attacks (TIAs) and two peripheral emboli occurred. Freedom from recurrent stroke, TIA, or peripheral embolism was 98% at 1 year, 97% at 2 years and 96% at 5 and 10 years, respectively. A residual shunt (hazard ratio = 3.4; 95% CI 1.3 to 9.2) was a risk factor for recurrence. Conclusions: This study attests to the long-term safety and efficacy of percutaneous PFO closure guided by fluoroscopy only for secondary prevention of paradoxical embolism in a large cohort of consecutive patients.
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收藏
页码:336 / 341
页数:6
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