[Familial polymorph ventricular extrasystole associated with Pierre Robin syndrome].

In a family of 9 persons over 3 generations, 6 had incessant polymorphic ventricular extrasystoles, often in salves, resembling unsustained bidirectional ventricular tachycardia. Ventricular repolarisation was abnormal with giant U waves. Five persons had suffered syncopes. All had a facial abnormality: one woman had a complete Pierre Robin syndrome with mandibular hypoplasia, glossoptos and cleft palate; in the other cases, minor forms were observed, with micrognathia and ogival palate. Two patients had bone abnormalities of the feet with total agenesis of the last 2 phalanges of several toes. This familial polymorphic ventricular extrasystole with repolarisation abnormalities has many features in common with the congenital long QT syndrome; associated with the Pierre Robin syndrome and bone abnormalities of the extremities it would seem to be a new multiple congenital abnormalities syndrome.