The Mustard and Senning procedures were developed in the 1960s to surgically correct one of these anatomical anomalies. The tetralogy of Fallot is a characteristic collection of four of these, while Ebstein's anomaly is commonly seen in Wolff-Parkinson-White patients, and is also sometimes caused by maternal lithium use.  They may be caused by exposure to (*) teratogens or by maternal illness in addition to causation by genetic predisposition. Another common cause is premature birth, as seen in the prevalence of patent ductus arteriosus.  They may occur at a cellular level, as in Jervell and Lange-Nielsen syndrome, a form of long QT interval 
The Mustard and Senning procedures were developed in the 1960s to surgically correct one of these anatomical anomalies. The tetralogy of Fallot is a characteristic collection of four of these, while Ebstein's anomaly is commonly seen in Wolff-Parkinson-White patients, and is also sometimes caused by maternal lithium use.  They may be caused by exposure to (*) teratogens or by maternal illness in addition to causation by genetic predisposition. Another common cause is premature birth, as seen in the prevalence of patent ductus arteriosus.  They may occur at a cellular level, as in Jervell and Lange-Nielsen syndrome, a form of long QT interval syndrome, but are more commonly thought of as structural abnormalities which affect blood flow such as patent foramen ovale.  For 10 points, name these irregularities common to a vital organ.
The Mustard and Senning procedures were developed in the 1960s to surgically correct one of these anatomical anomalies.
congenital {heart defect}s [accept things like {t}ransposition of the {g}reat {a}rteries or {t}ransposition of the {g}reat {v}essels until “tetralogy”] (3) [AU]