Ventricular Tachycardia in Congenital Pulmonary Stenosis

With modern surgical techniques, there is significantly increased life expectancy for those with congenital heart disease. Although congenital pulmonary valve stenosis is not as complex as tetralogy of Fallot, there are many similarities between the 2 lesions, such that patients with either of these conditions are at risk for ventricular arrhythmias and sudden cardiac death. Those patients who have undergone surgical palliation for congenital pulmonary stenosis are at an increased risk for development of ventricular arrhythmias and may benefit from a more aggressive evaluation for symptoms of palpitations or syncope.

Stenotic lesions of pulmonary arteries: imaging evaluation using multidetector computed tomography angiography

Stenotic lesions of the pulmonary arteries can be congenital or acquired. Different etiologies may affect the pulmonary arteries, unilaterally or bilaterally, at different levels. The clinical scenario, age of presentation and the precipitating event may provide clues to the underlying etiology. Diagnosis is important as these lesions may have hemodynamic and clinical consequences. Multidetector computed tomography angiography allows for accurate depiction of these lesions along with a comprehensive assessment of the pulmonary arterial wall, intra- or extraluminal involvement, associated cardiac or extracardiac anomalies, effects secondary to pulmonary stenosis on the cardiac chambers as well as associated causative or resultant lung parenchymal changes.