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Revista Colombiana de Cardiología

versión impresa ISSN 0120-5633

Resumen

RAMIREZ-GONZALEZ, Mónica; LEON-GUERRA, Óscar J.; LINCE-VARELA, Rafael  y  DIAZ, Luis H.. Pulmonary valvuloplasty in patients under the age of 21. Rev. Colomb. Cardiol. [online]. 2017, vol.24, n.1, pp.71-77. ISSN 0120-5633.  http://dx.doi.org/10.1016/j.rccar.2016.07.004.

Motivation:

To determine the association between the proportion of reoperations in patients with pulmonary valvular stenosis and the presence of a final pulmonary transvalvular gradient of ≥25 mm Hg in patients under the age of 21.

Methods:

Observational single-centre study, cross-sectional period type.

Population:

Patients between 0 months and 21 years of age who underwent balloon pulmonary valvuloplasty.

Analysis:

Description of the group and analysis in the subgroups given by the final transvalvular gradient of ≥25 mm Hg and reoperation. Pearson’s chi-squared test was conducted for categorical

variables. For the continuous variables, the Mann-Whitney U test was conducted. Logistic regression was used to define the association between variables and reoperation outcome.

Results:

In the group with the final gradient of ≥25 mm Hg, 86.67% were infants. The group with the final gradient of < 25 mm Hg the median of the initial gradient was 42 mm Hg IQ 25-75%: (34-59) in comparison to the group with the final gradient ≥25 mm Hg, the median of the initial gradient was 70 mm Hg IQ 25-75%: (41-86). By analysing both groups with the reoperation variable, it was observed that the change in the relationship of the pressured between the right ventricle and the left ventricle was associated with a lower need for reoperation. OR 0.04; CI 95% (0.002-0.7). Having a final gradient of ≥25 mm Hg after the surgery was associated to reoperation. OR 14.5; CI 95% (2.8-75).

Conclusion:

Having a final pulmonary transvalvular gradient of ≥25 mm Hg was associated to a higher probability of reoperation.

Palabras clave : Valvuloplasty; Stenosis; Pediatrics.

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