What is the normal range for TAPSE and at what value is systolic function considered reduced?

What is the normal range for TAPSE and at what value is systolic function considered reduced?

• A. Normal >25 mm; reduced <25 mm
• B. Normal >12 mm; reduced <12 mm
• C. Normal >17 mm; reduced <17 mm
• D. Normal >20 mm; reduced <20 mm

Answer: (C)

TAPSE measures how far the tricuspid annulus moves toward the apex during systole, reflecting the right ventricle’s longitudinal contractile function. A value greater than about 17 millimeters is considered normal, while a TAPSE below 17 mm indicates reduced right ventricular systolic function. This threshold is applied because it correlates with overall RV performance and prognosis in adults. Some sources may quote slightly different cutoffs, but 17 mm is the commonly used threshold in practice and exams. Values higher than 17 mm (like 25 mm) aren’t the standard reference for normality, and very low values (like 12 mm) clearly indicate dysfunction; 20 mm is sometimes cited, but 17 mm remains the typical cut-off for distinguishing normal from reduced function.

TAPSE measures how far the tricuspid annulus moves toward the apex during systole, reflecting the right ventricle’s longitudinal contractile function. A value greater than about 17 millimeters is considered normal, while a TAPSE below 17 mm indicates reduced right ventricular systolic function. This threshold is applied because it correlates with overall RV performance and prognosis in adults. Some sources may quote slightly different cutoffs, but 17 mm is the commonly used threshold in practice and exams. Values higher than 17 mm (like 25 mm) aren’t the standard reference for normality, and very low values (like 12 mm) clearly indicate dysfunction; 20 mm is sometimes cited, but 17 mm remains the typical cut-off for distinguishing normal from reduced function.