胎儿期心律失常类型及患儿出生后的心律转归.

Objective To summarize the types of fetal arrhythmias and to observe their outcomes after birth. Methods We collected the clinical data of 32 cases of fetal arrhythmia. The clinical characteristics， treatment outcomes and follow-up results of the newborns were analyzed. Results During 32 fetuses， including 22 males and 10 females， their fetal arrhythmia was found at the gestational age of（32. 7±5. 9）weeks，with the gestational weeks of birth of 37. 2 ±2. 9. The types of fetal arrhythmias in 32 cases included premature atrial contraction in 6 cases（18. 6%），atrial flutter and atrial fibrillation in 9 cases（28. 1%），paroxysmal supraventricular tachycardia in 5 cases（15. 6%），ventricular premature contraction in 1 case（3. 1%），burst ventricular tachycardia in 2 cases（6. 3%），and Ⅲ degree atrioventricular block in 6 cases （18. 8%），tachycardia-bradycardia syndrome in 1 case（3. 1%），and long Q-T syndrome in 2 cases（6. 3%）. In 32 cases， 12 cases did not need antiarrhythmic drugs after birth， and their heart rates and growth were normal；20 cases were treated with antiarrhythmic therapy，10 cases were given oral antiarrhythmic drugs at birth， and 2 cases died；1 case was given radiofrequency ablation， and 6 cases were implanted with permanent pacemakers；28 in 30 cases stopped taking antiarrhythmic drugs within two years old，3 cases continued to take antiarrhythmic drugs. Conclusions Most fetal arrhythmias can improve after birth， only partial newborns need oral anti-arrhythmic drugs. They can be cured within 2 years old and the prognosis is good. The fetuses with Ⅲ degree atrioventricular block require to be placed with pacemakers after birth. [ABSTRACT FROM AUTHOR]