XXXX and @entity4710 during infancy: management and follow-up.

@entity1 @entity296 @entity299 @entity591 @entity1892 @entity956 @entity2224 @entity955 @entity4924 @entity4710 @entity3153
The records of 90 @entity1 with @entity3153 who presented with @entity4710 in the first 4 months of life were reviewed. Among these, 63% were male. @entity299 was present in 20%, most commonly @entity4924 . All @entity1 presented with a regular narrow QRS @entity591 , and pre-excitation became evident only when normal sinus rhythm was established. Only one @entity1 had @entity956 and none had @entity955 . Type A @entity3153 was most common (49%), with @entity299 occurring in only 5% of these @entity1 . In contrast, @entity299 was identified in 45% of those with @entity1892 . Initially, normal sinus rhythm was achieved in 88% of the 66 @entity1 treated with digoxin with no deaths. Normal sinus rhythm resumed after electrical countershock in 87% of the 15 @entity1 so treated. Maintenance digoxin therapy was used in 85 @entity1 . The @entity3153 disappeared in 36% of the @entity1 . Four @entity1 died of cardiac causes during the mean follow-up period of 6.5 years. Two of these four @entity1 had @entity299 ; the third, with a normal heart initially, developed @entity2224 and died from a @entity296 considered related to resuscitation. The remaining @entity1 , with a normal heart, died suddenly at 1 month of age. All were receiving digoxin. A wide QRS @entity591 later appeared in three @entity1 , all with @entity299 , one of whom died.(ABSTRACT TRUNCATED AT 250 WORDS)
