Pulmonic Valvular Stenosis Differential Diagnoses
- Author: Melanie A Loewenthal, MD; Chief Editor: Robert E O'Connor, MD, MPH more...
Caution should be taken when an infant or child presents with symptoms of severe outflow tract obstruction. Failure to diagnose a serious congenital heart defect, such as tetralogy of Fallot (TOF), has a possibility of yielding disastrous consequences. Cyanotic patients with TOF and mild right ventricular outflow tract obstruction may have a similar presentation and physical examination findings. Echocardiography can reliably differentiate between pulmonic valvular stenosis and TOF. Whenever a suspicion exists, echocardiography should not be withheld.
Other conditions to consider in patients with suspected pulmonic valvular stenosis include the following:
- Complex congenital heart disease associated with findings of pulmonary stenosis
- Infundibular/subinfundibular stenosis
- Supravalvular pulmonary stenosis
- Dysplastic pulmonic valve stenosis
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