Which echocardiographic view is typically used to assess the inferior vena cava (IVC)?

The subcostal view is typically used to assess the inferior vena cava (IVC) because it provides an optimal angle for visualizing the IVC as it approaches the right atrium. This view allows for clear identification of the IVC's size and collapse with respiration, which are essential for assessing fluid status and central venous pressure in patients. The subcostal approach offers a direct line of sight to the IVC, minimizing interference from other structures such as the heart and lungs.

In contrast, the apical four-chamber view focuses on visualizing the heart chambers and valves and does not provide a direct assessment of the IVC. The parasternal long-axis view primarily evaluates the left ventricle and outflow tract, while the parasternal short-axis view gives insights into the ventricles but also does not effectively visualize the IVC. Thus, for assessing the IVC, the subcostal view stands out as the most effective echocardiographic perspective.