Table 1.

Pre- and post-ventricular assist device catheterization and echocardiographic studies

Patients	1		2		3		4
	Pre-VAD	Post-VAD	Pre-VAD	Post-VAD	Pre-VAD	Post-VAD	Pre-VAD	Post-VAD
VAD speed (rpm)	—	1900	—	5300	—	9200	—	5000
Catheterization data	—	5 months	—	2 months	—	3 months	—	2 months
Pulmonary capillary wedge pressure (mmHg)	17	10	22	10	24	6	35	11
Pulmonary arterial pressure (mmHg)	29/14	19/10	45/24	20/14	45/22	31/9	81/42	26/16
Subpulmonic LV pressure (mmHg)	29/12	19/5	52/24	25/6	40/7	28/6	92/12	32/11
Right atrial pressure (mmHg)	11	8	21	12	8	6	12	11
Pulmonary artery pulsatility index	1.36	1.12	1.0	1.58	2.87	3.66	3.25	1.6
Subaortic RV pressure (mmHg)	82/10	—	100/21	—	89/15	—	91/16	—
Subaortic RVEDV (mL)	123.5	—	142	—	386.8	—	425.7	—
Subaortic RVEF (%)	25	—	19	—	25	—	33	—
Pulmonary vascular resistance, unit)	2.29	0.91	1.51	0.97	2.50	2.03	9.22	1.9
Cardiac output (c-Fick)	2.9	4.2	3.6	6.2	4.3	4.5	2.7	4.7
Cardia index (c-Fick)	1.9	2.7	2.1	3.6	2.8	2.9	1.4	2.4
Echocardiographic data
Systemic atrioventricular valve regurgitation	Nonea	Nonea	Nonea	Nonea	Severe	trivial	severe	trivial
Aortic regurgitation	Trivial	Trivial	Trivial	Trivial	No AR	No AR	No AR	No AR

^aPatients underwent mechanical tricuspid valve replacement.

AR, aortic regurgitation; LV, left ventricle; RV, right ventricle; RVEDV, right ventricular end-diastolic volume; RVEF, right ventricular ejection fraction; VAD, ventricular assist device.

Pulmonary artery pulsatility index was calculated as [(Systolic pulmonary artery pressure − diastolic pulmonary artery pressure)/right atrial pressure].