Key result
In mechanically ventilated critically ill patients with a left ventricular ejection fraction below 55%, TAPSE was inversely correlated with central venous pressure (r = -0.516, p=0.006).
Why the study?
Does TAPSE correlate with CVP in mechanically ventilated critically ill patients?
Observational (n=74)
No
Does TAPSE correlate with CVP in mechanically ventilated critically ill patients?
Answers are grounded in this paper and cite their sources.
May support noninvasive CVP estimation in ventilated patients with reduced LVEF; observational data leave clinical utility unproven.
BACKGROUND: The tricuspid annular plane systolic excursion (TAPSE) is commonly recommended for estimating the right ventricular systolic function. The central venous pressure (CVP), which is determined by venous return and right heart function, was found to be associated with right ventricular outflow fractional shortening. This study thus aimed to investigate the relationship between the TAPSE and CVP in mechanically ventilated critically ill patients. METHODS: This is a prospective observational study. From October 1 to December 31, 2017, patients admitted to the intensive care unit with CVP monitoring and controlled mechanical ventilation were screened for enrolment. Echocardiographic parameters, including the TAPSE, mitral annular plane systolic excursion (MAPSE), left ventricular ejection fraction (LVEF), and internal diameter of inferior vena cava (dIVC), and haemodynamic parameters, including the CVP, were collected. RESULTS: Seventy-four patients were included. Thirty-one were included in the low LVEF (< 55%) group, and 43 were included in the high LVEF (≥55%) group. In the high LVEF group, the TAPSE and CVP were not correlated (r = - 0.234, P = 0.151). In the low LVEF group, partial correlation analysis indicated that the TAPSE and CVP were correlated (r = - 0.516, P = 0.006), and multivariable linear regression analysis indicated that the TAPSE was independently associated with the CVP (standard coefficient: - 0.601, p < 0.001). Additionally, in the low LVEF group, a ROC analysis showed that the area under the curve of the TAPSE for the detection of CVP greater than 8 mmHg was 0.860 (95% confidence interval: 0.730-0.991; P = 0.001). The optimum cut-off value was 1.52 cm, which resulted in a sensitivity of 75.0%, a specificity of 86.7%, a positive predictive value of 84.6% and a negative predictive value of 77.8%. CONCLUSIONS: The TAPSE is inversely correlated with the CVP in mechanically ventilated critically ill patients who have a LVEF less than 55%.
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Zhang et al. (2018) conducted an observational in Critically ill patients requiring mechanical ventilation (n=74). Tricuspid annular plane systolic excursion (TAPSE) was evaluated on Correlation between TAPSE and central venous pressure (CVP) in patients with LVEF < 55% (r = -0.516, 95% CI -0.132 to -0.799, p=0.006). In mechanically ventilated critically ill patients with a left ventricular ejection fraction below 55%, TAPSE was inversely correlated with central venous pressure (r = -0.516, p=0.006).
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