Real-time and Doppler US after pediatric segmental liver transplantation : II. Hepatic vein stenosis.
Pediatr Radiol
; 38(4): 409-14, 2008 Apr.
Article
en En
| MEDLINE
| ID: mdl-18214460
BACKGROUND: Accurate diagnosis of hepatic vein (HV) stenosis by real-time and color Doppler US (CD-US) after segmental liver transplantation in children can decrease morbidity because it allows unnecessary biopsy, obstruction or thrombosis and loss of the graft to be avoided. OBJECTIVE: To evaluate CD-US parameters to predict HV stenosis after segmental liver transplantation in children. MATERIALS AND METHODS: Retrospective review of 79 CD-US examinations measuring velocity at the HV anastomosis (HV1) and the main trunk 1-2 cm proximal to the HV/IVC anastomosis (HV2), the HV1/HV2 ratio and the spectral waveform of HV2. The study group comprised patients with stenosis confirmed by angiography. The control group comprised patients with a good clinical outcome. RESULTS: HV stenosis was seen in 12 CD-US examinations. The mean HV1/HV2 ratio was higher in the study group (6.0 versus 4.0). An HV1/HV2 ratio of >4.1 was predictive of HV stenosis (sensitivity 83%, specificity 76%). CONCLUSION: An HV1/HV2 ratio of >4.1 is a highly predictive CD-US parameter for the detection of hemodynamically significant HV stenosis on angiography.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Complicaciones Posoperatorias
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Enfermedad Veno-Oclusiva Hepática
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Trasplante de Hígado
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Ultrasonografía Doppler en Color
/
Venas Hepáticas
Tipo de estudio:
Diagnostic_studies
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Observational_studies
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Prognostic_studies
/
Risk_factors_studies
Límite:
Adolescent
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Child
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Child, preschool
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Female
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Humans
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Infant
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Male
Idioma:
En
Revista:
Pediatr Radiol
Año:
2008
Tipo del documento:
Article
País de afiliación:
Brasil
Pais de publicación:
Alemania