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  Indian J Med Microbiol
 

Figure 3: Comparision of supravalvular region (parasternal short axis view): (a) 7-month-old infant with pure valvar pulmonary stenosis and post stenotic dilatation of main pulmonary artery. (b) across the PV 86 mmHg; (post-BPV 2 years follow up gradient - 15 mmHg). (c) 9 months old infant with valvar pulmonary stenosis and supravalvar tethering and narrowing. Post-BPV gradient 35 mmHg; (d) gradient across pulmonary valve = 85 mmHg after 2 years. PV: Pulmonary valve, BPV: Balloon pulmonary valvotomy, RVOT: Right ventricular outflow tract, RA: Right atrium, LA: Left atrium, Ao: Aorta, RPA: Right pulmonary artery, LPA: Left pulmonary artery, TV: Tricuspid valve, AV: Aortic valve

Figure 3: Comparision of supravalvular region (parasternal short axis view): (a) 7-month-old infant with pure valvar pulmonary stenosis and post stenotic dilatation of main pulmonary artery. (b) across the PV 86 mmHg; (post-BPV 2 years follow up gradient - 15 mmHg). (c) 9 months old infant with valvar pulmonary stenosis and supravalvar tethering and narrowing. Post-BPV gradient 35 mmHg; (d) gradient across pulmonary valve = 85 mmHg after 2 years. PV: Pulmonary valve, BPV: Balloon pulmonary valvotomy, RVOT: Right ventricular outflow tract, RA: Right atrium, LA: Left atrium, Ao: Aorta, RPA: Right pulmonary artery, LPA: Left pulmonary artery, TV: Tricuspid valve, AV: Aortic valve