Cardiothoracic & vascular anesthesia
The Association of Pulmonary Artery to Aorta Diameter Ratio With Postoperative Outcomes Following Left Ventricular Assist Device Implantation
Authors' conclusion
The findings support the hypothesis that larger PA/Ao diameter ratios are associated with increased durations of postoperative inotropic support, ICU LOS, and HLOS.
Study context
- Population
- Adults undergoing durable left ventricular assist device (LVAD) implantation at a quaternary care academic center, July 2012–December 2019evaluated
- Participants
- 159 adults
- Exposure
- Preoperative PA/Ao diameter ratio
Methodological detailssingle-centre
- Single-centre
Main finding
As reported in the abstract
Larger PA/Ao diameter ratioOdds ratio (95% CI)P value
Inotrope duration
28.80(10.56–78.55)
P < 0.0001ICU LOS
2.86(1.29–6.33)
P < 0.03Hospital LOS
2.96(1.21–7.26)
P = 0.02Observational data: associations, not effects.
Further findings
Correlation of PA/Ao diameter ratio with clinical outcomes
- Ratio increase associated with 1 additional day of inotropic therapy
- 0.04
- Ratio increase associated with 1-day increase in intensive care unit (ICU) length of stay (LOS)
- 0.08
- Ratio increase associated with 1-day increase in hospital LOS
- 0.06
- Significant moderate positive correlations with clinical outcomes
Parts of this Brief are withheld: the automatic checks could not confirm them against the abstract.
Original publication
The Association of Pulmonary Artery to Aorta Diameter Ratio With Postoperative Outcomes Following Left Ventricular Assist Device Implantation. J Cardiothorac Vasc Anesth. Published 20 February 2026. doi:10.
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