The progression of an acceptable pulmonary stenosis immediately after total correction of tetralogy of Fallot.
Cardiol Young
; 30(6): 774-778, 2020 Jun.
Article
en En
| MEDLINE
| ID: mdl-32364111
ABSTRACT
BACKGROUND:
A certain degree of pulmonary stenosis after total correction of tetralogy of Fallot has been considered acceptable. But the long-term outcomes are not well understood. We observed the natural course of immediate pulmonary stenosis and investigated related factors for progression.METHODS:
Fifty-two patients with acceptable pulmonary stenosis immediately after operation were enrolled. Acceptable pulmonary stenosis was defined as peak pressure gradient between 15 and 45 mmHg by Doppler echocardiography. Latent class linear mixed model was used to differentiate patients with progressed pulmonary stenosis, and the factors related to progression were analysed.RESULTS:
Pulmonary stenosis progressed in 14 patients (27%). Between the progression group and no progression group, there were no significant differences in operative age, sex, and the use of the transannular patch technique. However, immediate gradient was higher in the progression group (32.1 mmHg versus 25.7 mmHg, p = 0.009), and the cut-off value was 26.8 mmHg (sensitivity = 65.3%, specificity = 65.8%). Main stenosis at the sub-valve was observed more frequently in the progression group (85.7% versus 52.6%, p = 0.027). Despite no difference in the preoperative pulmonary valve z value, the last follow-up pulmonary valve z value was significantly lower in the progression group (-1.15 versus 0.35, p = 0.002).CONCLUSIONS:
Pulmonary stenosis immediately after tetralogy of Fallot total correction might progress in patients with immediate pulmonary stenosis higher than ≥26.8 mmHg and the main site was sub-valve area.Palabras clave
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Estenosis de la Válvula Pulmonar
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Tetralogía de Fallot
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Progresión de la Enfermedad
Tipo de estudio:
Etiology_studies
/
Prognostic_studies
Límite:
Child
/
Child, preschool
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Female
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Humans
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Infant
/
Male
País/Región como asunto:
Asia
Idioma:
En
Año:
2020
Tipo del documento:
Article