Table 1

Echocardiographic and electrocardiographic features present in subjects carrying the A797T MYH7 mutation

Subject NoSex/age (y)EchocardiographicElectrocardiographicBP
IVS (mm)PW (mm)Area of hypertrophyASHSAMAbn repInc voltsAbn Q waves↑AtriaLVH
1.II.2M/581210Ivs + apexynynnnn130/80
1.II.3F/552210Ivsynynyyn140/80
1.II.6F/5398NAnnnnnnn110/80
1.II.8F/47149Ivsynnnnnn150/90
1.III.6M/343613Ivs + pwyyPMPMPMPMPM140/80
1.III.8M/291313Ivs + pwnnynnnn120/70
1.III.10M/30NININININININININININI
1.III.11F/27108NAnnnnnnn110/70
1.IV.2 F/14139Ivsyyynynn100/50
1.IV.6 F/866NAnnnnnnnna
4.I.1F/7088NANAnnananananana
4.II.1M/482412Ivs + pwyynananananana
4.II.3M/naNININININININININININI
4.II.6F/3399NANAnnnnnn120/80
4.III.1 F/10NININININININININININI
10.I.1F/322410Ivsynnanananana100/70
24.II.1M/562816Ivsyyyynnn150/80
24.III.2M/291212Ivs + pwNAnnnnnn130/80
31.III.1M/521010NAnnynnnn130/95
31.III.4M/511811Ivs + apexynynnnn125/85
31.III.6M/571312Ivs + apex + pwnnynynn160/110
31.III.8M/541312Ivs + apex + pwnnynyyy150/100
31.IV.1M/201010NAnnynnnn130/80
31.IV.2M/18910NAnnnnnnn120/60
31.IV.3 M/1577NANAnnnnnn120/75
31.IV.4M/232611Ivs + pwnyynnny130/60
31.IV.5M/22238Ivsnynnnnn120/70
31.IV.6M/1940naIvs + apexyyynnnn110/70
31.IV.8 F/151010NANAnnnnnn140/90
31.IV.14M/2799NAnnnnnnn140/90
38.II.1M/40nananananannnnnna
38.II.3M/38910NANAnyynnn140/90
38.II.4M/3812.712.7Ivs + apexnnyynnn145/90
38.II.6M/35nananananannnnnna
38.III.1 F/12NININININININININININI
38.III.3 F/13nananananannnnnna
SB902F/27221-150 131-150 Ivs + pwyyynyyy110/60
SB983F/62161-150 161-150 Ivs + pwyyynyyy140/70
SB995M/492515Ivs + pwyynnnnn140/85
  • Abn Q waves = abnormal Q waves, Abn rep = abnormal repolarisation, Age = age at diagnosis, ASH = asymmetrical septal hypertrophy, ↑Atria = enlarged atria, BP = blood pressure (mm Hg), Inc volts = increased voltages, IVS (mm) = maximum end diastolic interventricular septal thickness in mm, Ivs = interventricular septum, LVH = left ventricular hypertrophy by Romhilt and Este's criteria, PW (mm) = maximum end diastolic posterior wall thickness in mm, pw = posterior left ventricular free wall, SAM = systolic anterior motion of the mitral valve, y = feature present, n = feature absent, NA = not applicable, na = records not available, NI = not investigated clinically,

  • 1-150 = post myectomy values. Subjects under 16 years old are underlined.