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  • Title: [Supraventricular tachycardia in utero. Apropos of a personal case, review of the literature].
    Author: Pelletier P, Delarue T, Souplet JP, Foissey A, Oudry B, Lefrançois C.
    Journal: J Gynecol Obstet Biol Reprod (Paris); 1983; 12(1):55-63. PubMed ID: 6343471.
    Abstract:
    After describing a case of early hydrops fetalis in a fetus demonstrating supraventricular tachycardia (TSVF) the authors review the literature: First they note the increase in the number of cases of TSVF published in the last few years, thanks to better means of monitoring pregnancies and to the place taken by TSVF among the different other troubles of fetal heart rhythm than can occur. The second section enumerates and analyses the pathological associations and the complications that have been observed in cases of TSVF that have been indexed. All have a poor prognosis: as far as those cases where there are faults in the rhythm which are associated with or alternate with TSVF, congestive heart failure occurs in 50% of cases, and organic heart pathological conditions in 20% of cases. 19.1% die. The third section analyses the means available for diagnosis and prognosis and the value of these means. Diagnosis rests on screening by clinical observation (careful auscultation in every pregnancy, observation of the raised height of the uterine fundus and a lessening in active fetal movements) and by monitoring. Only the ECG can confirm the diagnosis. Congestive heart failure is diagnosed by using ultrasound. A cardiac malformation should be searched for thoroughly by ultrasound. Monitoring in labour has no use as a prognostic indicator. Only repeated measurements of pH can demonstrate fetal distress in labour. The last section is concerned with management: digitalisation is strongly to be recommended before the fetus is mature. Propranolol should be reserved for resistant and severe cases: when there is no congestive heart failure a wait and see policy under strict observation can be followed. If there is congestive heart failure, caesarean section must be carried out. After delivery resuscitation with vagal stimulation is often sufficient, but when it is not digitalisation can be used and very rarely electric cardioversion is needed. Relapses are frequent and treatment must be followed for a year.
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