Skip to main content

Table 2 Visual assessment of left ventricular ejection fraction (LVEF) using the ultrasound stethoscope*

From: Assessment of left ventricular ejection fraction using an ultrasonic stethoscope in critically ill patients

 

Visual assessment of LVEF with the ultrasound stethoscope

Reference LVEF

Increased

LVEF > 75%

Normal

LVEF: 50 to 75%

Moderately depressed

LVEF: 30 to 49%

Severely depressed

LVEF < 30%

Increased

4

4

0

0

Normal

1

47

1

0

Moderately depressed

0

3

11

0

Severely depressed

0

1

4

6

  1. *: Biplane LVEF measured off-line with the Simpson's rule using an upper-end system was used as a reference.