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Figure 6: Van Son technique two parallel longitudinal incisions in main pulmonary artery are connected distally, thus creating a wide flap of pulmonary artery tissue. (a) The pulmonary artery flap is sutured to the superior edge of ventriculotomy (b) Oval-shaped glutaraldehyde-treated pericardial patch (or, alternatively pulmonary homograft patch) is circumferentially sutured to edges of ventriculotomy, pulmonary artery flap, and pulmonary arteriotomy[39]

Figure 6: Van Son technique two parallel longitudinal incisions in main pulmonary artery are connected distally, thus creating a wide flap of pulmonary artery tissue. (a) The pulmonary artery flap is sutured to the superior edge of ventriculotomy (b) Oval-shaped glutaraldehyde-treated pericardial patch (or, alternatively pulmonary homograft patch) is circumferentially sutured to edges of ventriculotomy, pulmonary artery flap, and pulmonary arteriotomy<sup>[39]</sup>