Conditions that POTENTIALLY can be identified by an ECG include hypertrophic cardiomyopathy (HCM or HOCM), but that is not the most accurate test. Some arrythmias can be found, but it will be left up to parents to decide whether to follow up further on the ECG results. If local cardiologists will provide an initial follow-up evaluation and, if indicated, an echocardiogram, then HCM/HOCM can be readily diagnosed. One must remember that HCM may not fully develop until 18-20 years of age, so performing an ECG may premature, providing a "false" negative on a 15 or 16 year old. Then if HCM develops after age 18, the child may have graduated from High School and simply fall through the cracks until he/she collapses on the basketball court at age 21. I do not feel that you are not providing enough of a "safety net" for the kids and if nothing is found on their ECG at age 17, parents may be convinced their child is healthy for life. However, the children are NOT out of danger. Should the father who carries the gene die at age 45 and the children are screened when he was 40, there would NOT be any family history to report when the child is 16. Then, 5 years later it is found that the father died suddenly of HOCM, one of the two children has a 50/50 chance of having the gene since it is autosomal dominant. The son, at 21, needs to have an echocardiogram to rule out HCM/HOCM. HIS LIFE WILL DEPEND ON IT !!!