Table 2

Morphological characteristics of patients with severe tricuspid regurgitation caused by tethering

Patient number	Sex	Age (years)	Other congenital cardiac abnormalities	ΔP syst RV−RA (mm Hg)	Tricuspid annulus diameter (mm, normal <31 mm)	Area-D (cm²)	Fac (%)	Origin of the TR jet displaced	Leaflets with tethering from aberrant chords			Leaflets with short primary chords
Patient number	Sex	Age (years)	Other congenital cardiac abnormalities	ΔP syst RV−RA (mm Hg)	Tricuspid annulus diameter (mm, normal <31 mm)	Area-D (cm²)	Fac (%)	Origin of the TR jet displaced	Ant	Sept	Post	Ant	Sept	Post
Ant, anterior; Area-D, end diastolic area of the right ventricle obtained in the apical four chamber view (normal <25 cm²); ASD, atrial septal defect; AV/VA discordance, atrioventricular and ventriculo-arterial discordance; AV, atrioventricular; Fac, fractional area change (normal >25 cm²) defined as end diastolic area minus end systolic area divided by end diastolic area of the right ventricle; Post, posterior; RA, right atrial; RV, right ventricular; Sept, septal; syst, systolic; TGA, transposition of the great arteries; TR, tricuspid regurgitation; ΔP, difference in pressure; VA, ventriculo-arterial.
1	F	12	–	25	45	32.0	42	Apical	−	+	+	−	−	−
2	F	56	–	28	25	18.7	49	Apical	−	+	−	−	+	−
3	F	73	–	39	35	14.0	46	Apical	+	+	−	−	−	−
4	M	18	–	21	44	24.0	20	Apical	−	+	+	−	+	+
5	M	17	Superior sinus venosus septal defect	15	39	20.1	48	Apical	+	+	+	+	+	+
6	M	41	AV/VA discordance (l-TGA)		21	27.1	12	Apical	−	+	+	−	+	+
7	M	35	AV concordance/VA discordance (d-TGA)		52	40.9	48	Apical	−	+	−	−	−	−
8	M	62	Situs inversus with mesocardia; AV/VA discordance (d-TGA)		48	33.0	69	Apical	−	+	−	−	+	−
9	F	43	Pulmonary stenosis, ASD II	45	35	14.2	56	Apical	+	+	+	+	+	+
10	F	20	Pulmonary stenosis	30	30	13.5	44	Apical	−	+	+	+	+	+