期刊
AMERICAN HEART JOURNAL
卷 146, 期 2, 页码 339-344出版社
MOSBY-ELSEVIER
DOI: 10.1016/S0002-8703(03)00188-1
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Background Removal of infected endovascular leads if often required for cure of systemic infection, but the perceived risk of embolic events in the presence of large (> 10 mm) vegetations has been considered a relative contraindication to transvenous removal. Surgical removal of pacemaker leads has been suggested in this situation to avoid occurrence of pulmonary embolization. Methods Of 38 patients with infection of implanted pacemaker or cardioverter-defibrillator devices, those with evidence for systemic infection underwent transesophageal echocardiography to assess for the presence of vegetations. Results Vegetations on endocardial leads or right-sided cardiac structures ranging in size from 10 mm to 38 mm in their largest dimension were detected in 9 patients. All patients underwent successful transvenous removal of endocardial leads. Five of 9 patients (55%) had evidence of pulmonary embolism. However, all 5 patients made a full recovery with antibiotic treatment and anticoagulation. Among patients with endocardial vegetations, there was no difference in hospitalization periods between those with or without pulmonary embolism (14.6 +/- 0.8 days vs 18.0 +/- 4.5 days, P =.7). Conclusions Transvenous removal of infected pacemaker leads is an alternative to open-thoracotomy removal of infected leads. Fifty-five percent of patients with vegetations on endocardial leads in our series experienced pulmonary embolism, but neither survival nor length of hospital stay were affected by this complication.
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