Tricuspid Valve Regurgitation after Orthotopic Heart Transplantation: Prevalence and Etiology

Table 2

A univariate analysis of risk factors for early significant (at least mild-moderate) TR.

Risk factor		No TR/mild TR; (𝑛)	At least mild-moderate TR; (𝑛)	𝑃 value
	Average pretransplant MPAP (mmHg)	34.0 ± 15.4; (𝑛=37*)	43.0 ± 10.8; (𝑛=24*)	0.009
Pre-transplant hemodynamic parameters	Average pre-transplant PVR (Wood units)	2.9 ± 2.2; (𝑛=37^∗)	4.1 ± 2.3; (𝑛=23*)	0.066
	Average pre-transplant right atrial pressure (mmHg)	10.5 ± 6.3; (𝑛=31^∗)	13.2 ± 6.1; (𝑛=18*)	0.141
Surgical technique employed	Biatrial %	10.2%; (𝑛=6/59*)	8.8%; (𝑛=3/34*)	0.833

TR: tricuspid regurgitation; MPAP: mean pulmonary arterial pressure; PVR: pulmonary vascular resistance.
* Relatively small numbers of patients due to missing early postoperative data, particularly for patients transplanted in foreign countries.