Migration of central lines from the superior vena cava to the azygous vein.
Clin Radiol
; 67(1): 49-54, 2012 Jan.
Article
em En
| MEDLINE
| ID: mdl-22070939
ABSTRACT
AIM:
To report 11 cases of central venous access catheters migrating from the superior vena cava to the azygos vein in order to raise radiologists' awareness of this possibility. MATERIALS ANDMETHODS:
This is a retrospective review of the clinical history and imaging of 11 patients whose central line migrated from the superior vena cava to the azygos vein. The time course of migration, access route of the catheters, outcome, and depth of placement in the superior vena cava were evaluated.RESULTS:
All of these catheters were placed from the left; six through the subclavian vein, four as PICC lines, and one from the left internal jugular vein. Seven of the catheters were originally positioned in the superior vena cava. Four of the catheters were originally positioned in the azygos vein and were repositioned into the superior vena cava at the time of placement. The time to migration ranged from 2 to 126 days, average 43 days. In three cases, the migration was not reported at the first opportunity, resulting in a delay in diagnosis ranging from 10 to 27 days. All but one of the catheters extended at least 3.5 cm (range 1.8-7 cm) below the top of the right mainstem bronchus when in the superior vena cava.CONCLUSION:
Risk factors for migration into the azygos vein include placement from a left-sided approach and original positioning in the azygos vein with correction at placement. The depth of placement in the superior vena cava was not a protective factor. It is important to recognize migration because of the elevated risk of complications when central lines are placed in the azygos vein.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Veia Ázigos
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Veia Cava Superior
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Cateterismo Venoso Central
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Migração de Corpo Estranho
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Catéteres
Tipo de estudo:
Observational_studies
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Risk_factors_studies
Limite:
Adult
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Aged
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Female
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Humans
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Male
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Middle aged
Idioma:
En
Revista:
Clin Radiol
Ano de publicação:
2012
Tipo de documento:
Article
País de afiliação:
Estados Unidos