Secuencia anemia-policitemia en la gestación monocorial. Manejo prenatal y resultados perinatales

Introduction

The aim of this paper is to describe and analyze the perinatal outcomes of a series of TAPS cases followed and treated in a Fetal Medicine referral center, in terms of the type of TAPS and the prenatal behavior applied.

Methods

Descriptive and inferential statistical analysis with IBM SPSS Statistics software.

Results

Thirteen cases of TAPS were diagnosed in a total of 510 monocorial gestations. Most of the spontaneous TAPS were diagnosed at early stages (5 cases), whereas, in post-laser TAPS, 3/6 cases were diagnosed at advanced stages.

Four fetuses (4/26; 15.4%) presented alterations in neurosonography, 3 (3/14; 21.4%) in spontaneous TAPS and one (1/12, 8.3%) in post-laser TAPS (P=0.308).

Myocardial hypertrophy was detected in 7 fetuses, 5 (71.4%) of which corresponded to advanced stage TAPS. Four were spontaneous TAPS (4/14; 28.6%) and 3 were post-laser TAPS (3/12; 25%) (P=0.797).

Eight cases (8/13; 62.5%) required some fetal therapy procedure.

There were 3 antepartum fetal deaths and one couple decided to legally terminate the pregnancy (19.23%). All 5 losses were stage IV (P=0.008).

Overall survival was 80.8% (21/26 live newborns). There were no significant differences according to the type of TAPS (P= 0.159) and the prenatal behavior adopted (P=0.746).

Conclusions

Spontaneous TAPS is therefore a clinical entity with an impact on perinatal outcomes similar to post-laser. It seems that expectant management and laser achieve higher gestational age at birth.