Highlights ■ All standard echocardiographic views were obtained in the prone position. ■ In the prone position, 16 of 17 key variables were consistently acquired. ■ Image quality was slightly reduced only in the parasternal view. ■ Quantitative measurements were comparable between the prone and supine positions. ABSTRACT Objective: Transthoracic echocardiography is essential for hemodynamic assessment in critically ill patients; however, its use in the prone position remains challenging. This study aimed to assess the feasibility of performing transthoracic echocardiography […]