Polish National Registry for Fetal Cardiac Malformations ( initiated in 2004) was opened for primary practicioners as well as for the referral centers performing or basic fetal heart evaluation or targeted fetal echocardiography. None of the physicians until current era had regular education of fetal cardiology . It was necessary to create an audit - veryfication system, which was provided as a checking each record by the 3 most experienced fetal cardiologists in Poland, using randomised computer system. The aim of this analysis was a retrospective evaluation of „Negatively Verified”
Material and methods: The total number of fetuses in Registry during 2004 and 2013 was 5682 and there were 170 negative verified cases. Every „negative case” was analyzed and qualified to one of five categories: An error in classification of the severity of CHD ; computer mistakes , reported other prenatal problems but not CHD, different interpretation of the images (freezed frames or cine loops) and bad order of the labels of cardiac anomalies.
Results: The percentage of negative verifications was similar every year and total number of negative verification was 2,9% . The main reason for negative was first of all unproper fetal heart classification in 71 cases (42%). In majority the differences in interpretations were minor: but there were 5 huge differences between primary and secondary interpretation.
1) Fetal heart cardiology requires prenatal heart classification instead of pediatric classification
2) Computer mistakes (missing fields, missing diagnoses, lack of freezed frames or cine-loops) shoud be picked up by the system during up-loading of the cases
3) The different interpretation of the images could be used for teaching purpose of fetal cardiology .