twin-to-twin transfusion syndrome

(redirected from Twin twin transfusion syndrome)
Intrauterine growth retardation in 1 twin due to an artery-to-artery vascular shunting, which may occur in a diamnionic-dichorionic placenta, accompanied by hydramnios; the ‘donor’ twin is anaemic, pale, lighter, smaller with organ hypoplasia; the recipient twin is plethoric, polycythemic, macrosomic, has increased vascular resistance and may develop heart failure
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twin-to-twin transfusion syndrome

Fetal transfusion syndrome, fetofetal transfusion syndrome, stuck twin syndrome Obstetrics Intrauterine growth retardation in 1 twin due to an artery-to-artery vascular shunting, which may occur in a diamnionic-dichorionic placenta and be accompanied by hydramnios; the 'donor' twin is anemic, pale, lighter, smaller with organ hypoplasia; the recipient twin is plethoric, polycythemic, macrosomic, has ↑ vascular resistance and may develop heart failure. Cf Twin arterial reversed perfusion sequence.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.
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