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Papers by Natália Noronha

Research paper thumbnail of Diagnóstico Pré-Natal de Duplo Arco Aórtico

Arquivos Brasileiros de Cardiologia, 2021

Research paper thumbnail of Pulmonary sequestration: Two case reports

Revista Portuguesa de Cardiologia, 2019

Research paper thumbnail of Rare forms of pediatric congenital right ventricular fistulae

Revista portuguesa de cardiologia : orgao oficial da Sociedade Portuguesa de Cardiologia = Portuguese journal of cardiology : an official journal of the Portuguese Society of Cardiology, 2018

Abnormal vascular connections to the right ventricle (RV) are rare congenital malformations. The ... more Abnormal vascular connections to the right ventricle (RV) are rare congenital malformations. The majority of cases are diagnosed incidentally, and most patients are asymptomatic. The authors present three cases of right ventricular fistulae of non-coronary origin.

Research paper thumbnail of Abdominal pain of cardiovascular origin

Revista portuguesa de cardiologia : orgao oficial da Sociedade Portuguesa de Cardiologia = Portuguese journal of cardiology : an official journal of the Portuguese Society of Cardiology, 2018

Infective endocarditis is a microbial infection of the endocardium and it is rare in the pediatri... more Infective endocarditis is a microbial infection of the endocardium and it is rare in the pediatric population. In children, congenital heart disease is one of the most important risk factors for developing infective endocarditis and can involve other structures in addition to cardiac valves. The prognosis is generally better than in other forms of endocarditis, although the average mortality rate in the pediatric population is 15-25%. Clinical manifestations can mimic other diseases such as meningitis and collagen-vascular disease or vasculitis. Therefore, a high degree of suspicion is required to make an early diagnosis. Gram-positive bacteria, specifically alpha-hemolytic streptococci, Staphylococcus aureus and coagulase-negative staphylococci, are the most commonly involved bacteria. Diagnosis is based on the modified Duke criteria, which rely mostly on clinical assessment, echocardiography and blood cultures. Antibacterial treatment should ideally be targeted. However, if no spe...

Research paper thumbnail of Unusual cause of left ventricular dysfunction in a child

Revista portuguesa de cardiologia : orgao oficial da Sociedade Portuguesa de Cardiologia = Portuguese journal of cardiology : an official journal of the Portuguese Society of Cardiology, Jan 21, 2018

Anomalous Origin of the Left Coronary Artery from the Pulmonary Artery is a rare congenital heart... more Anomalous Origin of the Left Coronary Artery from the Pulmonary Artery is a rare congenital heart disease and a cause of myocardial ischemia during childhood. Most undiagnosed cases die in the first year of life as an extensive collateral network is essential for survival. The diagnosis requires a high index of clinical suspicion. The authors present the case of an 8-year-old black asymptomatic child referred from Cape Verde Island in order to clarify left ventricular dilatation and dysfunction with systo-diastolic turbulent flows observed at the interventricular septum. At the age of 3 months, she was diagnosed with heart failure, in the context of showing dilated cardiomyopathy. She was managed and clinically improved with anticongestive therapy, which she was still taking at the time of admission to our Center. The echocardiogram findings suggested Anomalous Origin of the Left Coronary Artery from the Pulmonary Artery and the diagnosis was confirmed by computerized angiotomograph...

Research paper thumbnail of Infant heart tumour

Revista portuguesa de cardiologia : orgao oficial da Sociedade Portuguesa de Cardiologia = Portuguese journal of cardiology : an official journal of the Portuguese Society of Cardiology, 2018

We present the case of a two-month-old, previously healthy female infant seen in the emergency de... more We present the case of a two-month-old, previously healthy female infant seen in the emergency department with a lower respiratory tract infection. The chest X-ray showed bilateral interstitial peribronchial thickening and an abnormally shaped cardiac silhouette (Figure 1), for which she was referred for pediatric cardiology assessment. The echocardiogram showed a 25×14 mm ovoid, heterogeneous echogenic intramyocardial mass localized to the apical LV lateral wall and also involving the base of the anterolateral papillary muscle. No extension of the mass was evident beyond the myocardium, and there was also no obstruction of the left ventricle inflow or outflow tract or mitral regurgitation (Figure 2). The electrocardiogram showed abnormal positive T wave in V1 and negative T waves in V2 to V6 and in leads I, II and aVL. No other abnormal findings were found. In order to better characterize the mass, cardiac magnetic resonance imaging (CMRI) was performed (Figure 3) which confirmed the presence of an apical intramyocardial heterogeneous mass measuring 30×14 mm extending to the base of the anterolateral papillary muscle, with clear hypoperfusion on first-pass perfusion (FPP), surrounded by a rim of normally perfused myocardium, isointense on T1-weighted turbo spin-echo imaging (TSE) and slightly hyperintense on T2 TSE. Myocardial delayed enhancement

Research paper thumbnail of There is more to Wolff-Parkinson- White than meets the Eye

Interventional Cardiology Journal, 2017

The authors present the case of a 9-month-old infant with Wolff-Parkinson-White syndrome admitted... more The authors present the case of a 9-month-old infant with Wolff-Parkinson-White syndrome admitted with both wide and narrow QRS complex tachyarrhythmias during the same episode. The former reverted spontaneously. The latter, however, was refractory to vagal man oeuvres, adenosine and electrical cardioversion. Sinus rhythm was restored following an intravenous infusion of amiodarone.

Research paper thumbnail of Incidental finding in a newborn with respiratory distress

Einstein (Sao Paulo, Brazil), Jan 12, 2017

Research paper thumbnail of Complement factor B mutation-associated aHUS and myocardial infarction

Research paper thumbnail of Severe left ventricular dysfunction in an infant

Research paper thumbnail of Spontaneous thrombosis of the arterial duct in a newborn with alloimmune thrombocytopaenia

Cardiology in the Young, 2021

We present an uncommon challenging case of spontaneous thrombosis of the arterial duct and with a... more We present an uncommon challenging case of spontaneous thrombosis of the arterial duct and with alloimmune thrombocytopaenia in a full-term newborn who presented with respiratory distress, hypoglycaemia dispersed petechiae on the trunk, and significant haemorrhage of the umbilical venous catheter.

Research paper thumbnail of The painted shoes

Research paper thumbnail of Diagnóstico Pré-Natal de Duplo Arco Aórtico

Arquivos Brasileiros de Cardiologia, 2021

Research paper thumbnail of Pulmonary sequestration: Two case reports

Revista Portuguesa de Cardiologia, 2019

Research paper thumbnail of Rare forms of pediatric congenital right ventricular fistulae

Revista portuguesa de cardiologia : orgao oficial da Sociedade Portuguesa de Cardiologia = Portuguese journal of cardiology : an official journal of the Portuguese Society of Cardiology, 2018

Abnormal vascular connections to the right ventricle (RV) are rare congenital malformations. The ... more Abnormal vascular connections to the right ventricle (RV) are rare congenital malformations. The majority of cases are diagnosed incidentally, and most patients are asymptomatic. The authors present three cases of right ventricular fistulae of non-coronary origin.

Research paper thumbnail of Abdominal pain of cardiovascular origin

Revista portuguesa de cardiologia : orgao oficial da Sociedade Portuguesa de Cardiologia = Portuguese journal of cardiology : an official journal of the Portuguese Society of Cardiology, 2018

Infective endocarditis is a microbial infection of the endocardium and it is rare in the pediatri... more Infective endocarditis is a microbial infection of the endocardium and it is rare in the pediatric population. In children, congenital heart disease is one of the most important risk factors for developing infective endocarditis and can involve other structures in addition to cardiac valves. The prognosis is generally better than in other forms of endocarditis, although the average mortality rate in the pediatric population is 15-25%. Clinical manifestations can mimic other diseases such as meningitis and collagen-vascular disease or vasculitis. Therefore, a high degree of suspicion is required to make an early diagnosis. Gram-positive bacteria, specifically alpha-hemolytic streptococci, Staphylococcus aureus and coagulase-negative staphylococci, are the most commonly involved bacteria. Diagnosis is based on the modified Duke criteria, which rely mostly on clinical assessment, echocardiography and blood cultures. Antibacterial treatment should ideally be targeted. However, if no spe...

Research paper thumbnail of Unusual cause of left ventricular dysfunction in a child

Revista portuguesa de cardiologia : orgao oficial da Sociedade Portuguesa de Cardiologia = Portuguese journal of cardiology : an official journal of the Portuguese Society of Cardiology, Jan 21, 2018

Anomalous Origin of the Left Coronary Artery from the Pulmonary Artery is a rare congenital heart... more Anomalous Origin of the Left Coronary Artery from the Pulmonary Artery is a rare congenital heart disease and a cause of myocardial ischemia during childhood. Most undiagnosed cases die in the first year of life as an extensive collateral network is essential for survival. The diagnosis requires a high index of clinical suspicion. The authors present the case of an 8-year-old black asymptomatic child referred from Cape Verde Island in order to clarify left ventricular dilatation and dysfunction with systo-diastolic turbulent flows observed at the interventricular septum. At the age of 3 months, she was diagnosed with heart failure, in the context of showing dilated cardiomyopathy. She was managed and clinically improved with anticongestive therapy, which she was still taking at the time of admission to our Center. The echocardiogram findings suggested Anomalous Origin of the Left Coronary Artery from the Pulmonary Artery and the diagnosis was confirmed by computerized angiotomograph...

Research paper thumbnail of Infant heart tumour

Revista portuguesa de cardiologia : orgao oficial da Sociedade Portuguesa de Cardiologia = Portuguese journal of cardiology : an official journal of the Portuguese Society of Cardiology, 2018

We present the case of a two-month-old, previously healthy female infant seen in the emergency de... more We present the case of a two-month-old, previously healthy female infant seen in the emergency department with a lower respiratory tract infection. The chest X-ray showed bilateral interstitial peribronchial thickening and an abnormally shaped cardiac silhouette (Figure 1), for which she was referred for pediatric cardiology assessment. The echocardiogram showed a 25×14 mm ovoid, heterogeneous echogenic intramyocardial mass localized to the apical LV lateral wall and also involving the base of the anterolateral papillary muscle. No extension of the mass was evident beyond the myocardium, and there was also no obstruction of the left ventricle inflow or outflow tract or mitral regurgitation (Figure 2). The electrocardiogram showed abnormal positive T wave in V1 and negative T waves in V2 to V6 and in leads I, II and aVL. No other abnormal findings were found. In order to better characterize the mass, cardiac magnetic resonance imaging (CMRI) was performed (Figure 3) which confirmed the presence of an apical intramyocardial heterogeneous mass measuring 30×14 mm extending to the base of the anterolateral papillary muscle, with clear hypoperfusion on first-pass perfusion (FPP), surrounded by a rim of normally perfused myocardium, isointense on T1-weighted turbo spin-echo imaging (TSE) and slightly hyperintense on T2 TSE. Myocardial delayed enhancement

Research paper thumbnail of There is more to Wolff-Parkinson- White than meets the Eye

Interventional Cardiology Journal, 2017

The authors present the case of a 9-month-old infant with Wolff-Parkinson-White syndrome admitted... more The authors present the case of a 9-month-old infant with Wolff-Parkinson-White syndrome admitted with both wide and narrow QRS complex tachyarrhythmias during the same episode. The former reverted spontaneously. The latter, however, was refractory to vagal man oeuvres, adenosine and electrical cardioversion. Sinus rhythm was restored following an intravenous infusion of amiodarone.

Research paper thumbnail of Incidental finding in a newborn with respiratory distress

Einstein (Sao Paulo, Brazil), Jan 12, 2017

Research paper thumbnail of Complement factor B mutation-associated aHUS and myocardial infarction

Research paper thumbnail of Severe left ventricular dysfunction in an infant

Research paper thumbnail of Spontaneous thrombosis of the arterial duct in a newborn with alloimmune thrombocytopaenia

Cardiology in the Young, 2021

We present an uncommon challenging case of spontaneous thrombosis of the arterial duct and with a... more We present an uncommon challenging case of spontaneous thrombosis of the arterial duct and with alloimmune thrombocytopaenia in a full-term newborn who presented with respiratory distress, hypoglycaemia dispersed petechiae on the trunk, and significant haemorrhage of the umbilical venous catheter.

Research paper thumbnail of The painted shoes