Abstract:
:Catheter ablation in children requires placement of multiple large femoral venous sheaths and catheters. Magnetic resonance angiography (MRA) was used to evaluate the effect of indwelling lines on femoral venous blood flow. Between October 1993 and February 1994 a total of 17 patients scheduled for catheter ablation underwent venous MRA. Two-dimensional time-of-flight MRA was performed 12-70 hours after catheterization on all patients. All patients received intravenous heparin during the procedure and had aspirin therapy instituted after ablation. Eighteen catheter ablations and MRA studies were performed on the 17 patients (one patient underwent repeat ablation). There were 7 females and 10 males, with a mean age of 14.8 +/- 4.2 years (range 8-21 years). Patients had three venous sheaths inserted in the left femoral vein (5F, 6F, and 7F with external diameters measuring 1.7, 2.0, and 2.3 mm, respectively) and one sheath in the right femoral vein (7F). Four patients (22%) had altered venous flow (two complete obstructions and two partial obstructions) following catheterization. None of these patients experienced symptoms or complications. It was concluded that there is an increased incidence (22%) of venous obstruction following catheter ablation, but there are no related complications. Venous MRA provides a rapid, noninvasive method for evaluating venous flow abnormalities and possibly detects patients at risk for complications.
journal_name
Pediatr Cardioljournal_title
Pediatric cardiologyauthors
Miga DE,McKellar LF,Denslow S,Wiles HB,Case CL,Gillette PCdoi
10.1007/s002469900151subject
Has Abstractpub_date
1997-05-01 00:00:00pages
204-7issue
3eissn
0172-0643issn
1432-1971journal_volume
18pub_type
杂志文章abstract::At the University of California Davis Medical Center, a screening fetal ultrasound examination (level I or II) incorporates a comprehensive segmental evaluation of the fetal heart. This study evaluated the reliability of the fetal ultrasound exam in the detection of abnormal heart anatomy. Our retrospective study revi...
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journal_title:Pediatric cardiology
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pub_type: 杂志文章,评审
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更新日期:1999-05-01 00:00:00
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journal_title:Pediatric cardiology
pub_type: 杂志文章
doi:10.1007/BF02427034
更新日期:1982-01-01 00:00:00
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pub_type: 杂志文章,评审
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更新日期:2015-10-01 00:00:00
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journal_title:Pediatric cardiology
pub_type: 杂志文章
doi:10.1007/BF02083301
更新日期:1989-10-01 00:00:00
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journal_title:Pediatric cardiology
pub_type: 杂志文章
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更新日期:1998-11-01 00:00:00
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journal_title:Pediatric cardiology
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journal_title:Pediatric cardiology
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