Changes in left ventricular dimensions after pulmonary artery banding and Jatene operation in children with complete transposition of the great arteries. Echocardiographic study.

Tooyama, Kan; Satomi, Gengi; Nakazawa, Makoto; Seguchi, Masashi; Mori, Kazuhiro; Takao, Atsuyoshi; Imai, Yasuharu

doi:10.1536/ihj.29.421

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“…The arterial switch operation has been performed a few or several months after the pulmonary artery banding in many institutions. 1618 ' 22 Tooyama et al 23 reported that the left ventricular wall thickness reached the peak one month after the pulmonary artery banding in the patients with simple transposition. Recently, Jonas et al 1 reported that the ventricular mass increased rapidly in a week after the pulmonary artery banding and they performed successfully the rapid two-stage arterial switch procedure.…”

Section: Discussionmentioning

confidence: 99%

Obstructing balloon catheter for the induction of systolic hypertension in the pulmonary ventricle—an acute hemodynamic study in the piglet

et al. 1992

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The use of an obstructing balloon catheter positioned in the outflow tract of the pulmonary ventricle may be an alternative method for the adaptation of the left ventricle to an increased afterload prior to an arterial switch procedure in patients with complete transposition requiring a two-stage approach. We tested this approach in an acute hemodynamic study in a piglet model. Seven piglets were anesthetized with halothane and ventilated at FiO 2 1.0. Through a median sternotomy, the great vessels were exposed. The right ventricular pressure and the aortic blood pressure were recorded using microtip manometers, cardiac output was measured by an electromagnetic flow probe on the ascending aorta. A 6F or 7F Berman angiographic catheter was placed in the lumen of the pulmonary artery and the balloon inflated to decrease cardiac output no more than 30%. The hemodynamic changes observed after balloon inflation included an 100% increase in systolic right ventricular pressure (control vs balloon inflation (mean+SE) 20.4 ±1.5 mm Hg vs 46.6 ± 4 mm Hg, p<0.001), a slight reduction in systolic aortic pressure (75.5 ± 3.8 mm Hg vs 65.0 + 5.8 mm Hg; p<0.05), and a reduction in cardiac output by 30% (1.1 ± 0.081/minvs 0.8 ±0.08 1/min, p<0.01). The systolic right ventricular to aortic pressure ratio was increased from 0.27 ± 0.02 to 0.69 ± 0.08, p<0.001. This study shows that a balloon catheter may be useful in creating systolic hypertension in the pulmonary ventricle in patients with complete transposition requiring a two-stage approach.

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Section: Discussionmentioning

confidence: 99%

Obstructing balloon catheter for the induction of systolic hypertension in the pulmonary ventricle—an acute hemodynamic study in the piglet

et al. 1992

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Changes in left ventricular dimensions after pulmonary artery banding and Jatene operation in children with complete transposition of the great arteries. Echocardiographic study.

Abstract: Echocardiographic left ventricular (LV) dimensions in patients with complete transposition of the great arteries (TGA's) were measured before and after the Jatene procedure and/or pulmonary artery banding (PAB).

Cited by 1 publication

References 6 publications

Obstructing balloon catheter for the induction of systolic hypertension in the pulmonary ventricle—an acute hemodynamic study in the piglet

Obstructing balloon catheter for the induction of systolic hypertension in the pulmonary ventricle—an acute hemodynamic study in the piglet

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