TRANSPOSIÇÃO CONGENITAMENTE CORRIGIDA DAS GRANDES ARTÉRIAS: DIAGNÓSTICO PÓS-NATAL

TCGA: DIAGNÓSTICO PÓS NATAL

Authors

  • Murilo Oliveira de carvalho Universidade do Extremo Sul Catarinense (UNESC)
  • Nicole Bento de Oliveira Universidade do Extremo Sul Catarinense (UNESC)
  • Mauricio Oliveira de Carvalho Universidade do Extremo Sul Catarinense (UNESC)
  • João Vitor dos Santos Back Universidade do Extremo Sul Catarinense (UNESC)
  • Maria Laura Zanette Naspolini Universidade do Extremo Sul Catarinense (UNESC)
  • Luciano Pereira Bender Médico Cardiologista Pediátrico do Hospital Materno Infantil Santa Catarina

DOI:

https://doi.org/10.18616/inova.v13i3.8323

Abstract

Corrected transposition of the great arteries (TGA) is defined by simultaneous discordance between atrioventricular (AV) and ventriculo-arterial (VA) connections, being rarer than TGA1. It represents 0.05% of congenital heart defects with an annual incidence of 1 in 33,000 live births2. Diagnosis can be made by fetal echocardiography (ECO)3. Male, 6 months old, normal neonatal screenings, admitted on 05/19/23 due to a cough, chest retractions, and oxygen saturation of 88%. A grade 3+/6+ systolic murmur was audible in the lower left sternal border. He progressed to orotracheal intubation. ECO showed corrected TGA with left-sided overload, insufficient tricuspid valve, right ventricular hypertrophy, bidirectional flow through the ventricular septal defect, systolic and diastolic dysfunction of the systemic ventricle (ejection fraction - EF: 38%). Vasoactive drugs were started, improving EF to 60%. On the 3rd day, supraventricular tachycardia occurred, reversed with adenosine. Propranolol was initiated with sustained hemodynamic improvement and discharge on the 5th day. On 05/27/23, a new arrhythmic event occurred, and amiodarone was administered at a maintenance dose of 10 mg/kg/day. Propranolol was discontinued. Adequate progress and discharge within 24 hours. Reevaluation after 7 days showed clinical improvement and referral for surgical correction. Routine fetal echocardiography during pregnancy is of utmost importance for a detailed analysis of cardiac anatomy. This enables early diagnosis with monitoring and prevention of severe outcomes

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Published

2023-12-08