Effect of probiotics on hemodynamic changes and complications associated with cirrhosis: A pilot randomized controlled trial

Table 2 Calculations of hemodynamic parameters

Parameter	Calculation
End-diastolic and end-systolic volume of the left ventricle	Modified Simpson’s disk method
Ejection fraction of the left ventricle	[(End-diastolic volume) – (end-systolic volume)]/(end-diastolic volume)
Stroke volume	(Doppler velocity time integral) × (cross-sectional aorta area)[41]
Mean arterial pressure	[(systolic blood pressure)+2 × (diastolic blood pressure)]/3
Cardiac output	(Stroke volume) × (heart rate)
Systemic vascular resistance	(Mean arterial pressure)/(cardiac output)
Systolic pulmonary artery pressure	(Right atrium pressure estimated from diameter of inferior vena cava and respiratory changes) + 4 × (the peak velocity of the tricuspid valve regurgitant jet)2[39,40]
Mean pulmonary artery pressure	0.61 × (systolic pulmonary artery pressure) + 2 mmHg[42]