The prevalence of pulmonary hypertension assessed using the pulmonary vein‐to‐right pulmonary artery ratio and its association with survival in West Highland white terriers with canine idiopathic pulmonary fibrosis

Table 2 Echocardiographic results

	n	CIPF WHWTs	n	Control WHWTs	P-value
PV diam. (MM), mm	24	5.6 +/-1.6	19	7.6 +/- 1.6	< 0.001
PA diam. (MM), mm	24	9.0 +/- 0.8	19	7.5 +/- 0.8	< 0.001
PV/PA ratio (MM)	24	0.6 +/- 0.2	19	1.0 +/- 0.2	< 0.001
PV diam. (2D), mm	24	5.0 (3.9–5.6)	19	7.0 (6.1–7.3)	< 0.001
PA diam. (2D), mm	24	8.5 (7.4–9.0)	19	7.0 (6.6–7.7)	0.001
PV/PA ratio (2D)	24	0.6 (0.5–0.7)	19	1.0 (0.9–1.0)	< 0.001
TRPG, mmHg	12	41.2 +/- 16.2	5	26.2 +/- 15.4	0.100
PRPG, mmHg	4	14.0 +/- 10.2	1	4.8 +/- 0.0	0.477

CIPF, canine idiopathic pulmonary fibrosis; WHWT, West Highland whiter terrier; PV, right pulmonary vein; MM, time-motion mode; PA, right pulmonary artery; PV/PA, pulmonary vein to right pulmonary artery; 2D, 2-dimensional mode; TRPG, peak tricuspid regurgitation systolic pressure gradient; PRPG, peak pulmonary regurgitation diastolic pressure gradient. Data are expressed as mean +/- standard deviation for normally distributed data and as median and interquartile range for not normally distributed data

ISSN: 1746-6148