Prediction of Heart Failure in Children with Congenital Heart Disease Based on Multichannel LSTM

Table 3

Hemodynamic manifestations and operation timing of ventricular septal defects with different sizes.

Large ventricular septal defect	QP/QS	VSD/aortic orifice diameter	Left ventricular size	Pulmonary artery pressure	Timing of operation
Small, restrictive	<2	<1	Normal	Normal	2-4 years old
All	2	<1	Expand		1-2 years old
Large, nonlimiting	Left to right shunting depends on PVR	1	Expand	Equal to body circulating pressure	3~6 months or earlier after birth