alexa Fetal cardiac output in monochorionic twins.
Cardiology

Cardiology

Journal of Clinical & Experimental Cardiology

Author(s): Sueters M, Middeldorp JM, Lopriore E, Bkenkamp R, Oepkes D,

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Abstract OBJECTIVES: To compare fetal cardiac output (CO) in donor and recipient twins of twin-twin transfusion syndrome (TTTS) pregnancies after laser therapy with that of monochorionic twins without TTTS and normal singletons. METHODS: In a longitudinal, prospective study, we sonographically assessed fetal CO in donors (n = 10) and recipients (n = 10) with TTTS after fetoscopic laser therapy, in monochorionic twins without TTTS (n = 20) and in normal singleton pregnancies (n = 20). The fetal CO of TTTS twins was determined 1 day and 1 week after laser treatment, and from then on every 2-4 weeks until birth. Twins without TTTS were examined biweekly until birth. Singletons were examined twice, with an 8-week interval, at different gestational ages between 17 and 35 weeks. RESULTS: Absolute CO increased exponentially with advancing gestational age (P < 0.0001), and was significantly related to fetal weight in all groups (P < 0.0001). The median CO/kg in donors after laser therapy, recipients after laser therapy and non-TTTS monochorionic twins was significantly higher than that in singletons (all P < 0.001). Median CO/kg in donors after laser therapy, recipients after laser therapy, and non-TTTS monochorionic twins was not significantly different between groups. CONCLUSIONS: Monochorionic twins with TTTS have higher CO after laser therapy than normal singletons. (c) 2008 ISUOG. Published by John Wiley & Sons, Ltd. This article was published in Ultrasound Obstet Gynecol and referenced in Journal of Clinical & Experimental Cardiology

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