Doctor insights on:
Is Gender A Factor In Vanishing Twin Syndrome
Demise of one fetus: Vanishing twin syndrome is the demise of one twin sometime during the pregnancy. One study suggested it occurred about 20-30% of twin pregnancies. Most commonly it occurs early in the pregnancy and generally the remaining fetus has a good outcome. Its' occurrence later in pregnancy can be associated with adverse maternal and fetal outcomes. ...Read more
Vanishing twin syndrome lost at 7 weeks. What is the likelihood that remaining twin will have something wrong with it?
Pretty small: The chances of a genetic defect in the remaining twin is very small as long as it continues to develop. On most occasions the surviving twin got the majority of the placental perfusion and that is why it is still present and hopefully growing. ...Read more
Vanishing twin syndrome (lost at 5+ weeks), what is the likelihood of the remaining twin having something wrong with it?
Increased risk LBW: Compared to singletons, the surviving twin of VTS is at slightly greater risk of premature delivery, low birth weight and, for twin loss after 8 weeks gestation there is an increased risk for cerebral palsy. Loss of a twin at five weeks greatly reduces the risk for the surviving twin to have any adverse consequences. ...Read more
2-4 weeks: 2-4 weeksGet a more detailed answer ›
Eggs splice, or the two fraternal twins suffer from vanishing twin syndrome and the twin literally absorbs the other twin, what does this mean?
Conjoined placenta: Unfortunately, the placenta often becomes shared between the twins and the one with the better access to the cotyledons of the placenta thrives and the other twin does not. An alternate scenario is when the two fraternal fetal twins are joined together but one does not develop as well as the other prior to placental development in the first trimester. ...Read more
None.: Vanishing twin syndrome is probably much more common that people think; it results in a singleton pregnancy and current evidence suggests it is rather the norm than the exception. No test can predict this, only serial prenatal sonograms can document it. No specific therapeutic intervention is warranted. ...Read more
I'm 39 & 6 weeks preg. W/ twins. How concerned should I be about vanishing twin syndrome? What should I expect at my visit in 2 weeks. I'm really scared
Worrying will not:
Help the matter any. Vanishing of one of the twin is being recognized more often due to the common use of ultrasound in early pregnancy. I understand your being concerned, but that will not affect the outcome. Please see this site for information on this topic.
http://emedicine. Medscape. Com/article/271818-overview. ...Read more
Not enough info: To put this into context.Get a more detailed answer ›
If 1 twin dies in utero (vanishing twin syndrome) is it likely or possible that the dead twins amniotic sac will continue to grow?
No.: The sac will not grow if the fetus does. ...Read more
I had slight bleeding but no pain or clots. Was told it was miscarriage could it be possible vanishing twin syndrome?
Probably not: However, you could ask your doctor to check your serum HCG levels if you wanted to rule this out. ...Read more
Can your HCG level lower if you had vanishing twins syndrome? Had positive tests now negative with bleeding. I am almost 6 weeks.
Will a vanishing twin (lost at 7 weeks) affect the results of first trimester Down's syndrome blood testing?
Unlikely: These tests rely on the active production of various markers in the blood and so a demised twin this early on will be unlikely to affect the test. These tests however, should be interpreted in the setting of a screening ultrasound to help better understand the risk. That being said, no test is ever 100% accurate, though they are useful. Consultation with a genetic counselor will help. ...Read more
Will a vanishing twin (lost at 7 weeks) affect first trimester downs syndrome testing with blood test and ultrasound?
Vanishing twin: No, it would not affect your test result. Ultrasound would show it for a while, but the developing twin will eventually grow big enough to hide it from view. ...Read more
If you are asking: If two identical twins, say both are women giving birth at the same time, have a higher chance of having the same gender for their babies, then the answer is no. The probability is 50% for 1 twin mother and 50% for the other twin mother delivering both a boy, 0.5 x 0.5 = 0.25 or 25%, but adding to the same probability for a girl. So 25% both girls + 25% both boys = 50%. ...Read more
AKA TTTS: Ttts is when twins share abnormal blood vessel connections allowing one baby to "steal" blood from the other. Another name for this syndrome is poly/oli twins because one will have too much amniotic fluid (polyhydramnios) and the other too little fluid (oligohydramnios.) this is a high risk situation that will need to be carefully monitored by serial ultrasound and may require early delivery. ...Read more
Hidden Twin Syndrome: Before ultrasound imaging of pregnancy, a twin pregnancy was sometimes missed, and not realized until the twin is delivered at birth. Now with ultrasound imaging, a twin is seen during examination. There is no dangerous hidden twin syndrome to worry you. Relax aabout this. ...Read more
Is it possible for one twin to have Marfan syndrome and the other twin not have Marfan syndrome at all?
I have a fraternal twin brother with microdeletion 22q11.2 (velocardiofacial syndrome). What are the chances my children will have the same disorder?
Minimal: These odd micro-deletion syndromes are thought to arise as new defects which could be dominantly passed. Unless you carry it, you won't pass it to your kids and they would have the same risk as the general population to acquire it (new). You might benefit from discussing any and all genetic risk issues from both sides of the family with a geneticist. ...Read more
Aborted twins same placenta missing sex chrom 21 therefore had turners syndrome cant find info linking the 2 why what when how need info ttc risk etc?
Ultrasound.: Determining the type of twins and their condition by prenatal ultrasound is the only way to diagnose ttts. ...Read more
Large uterus.: Rapidly enlarging uterus is the hallmark of ttts and results from massive polyhydramnios in the recipient's gestational sac. Prompt expert medical care can help avoid death to both twins. ...Read more
When blood from one twin is going to the other twin. One twin grows the other does not
twin-to-twin transfusion syndrome
ttts; fetal transfusion syndrome
last reviewed: september 12, 2011.
Twin-to-twin transfusion syndrome (ttts) is a rare condition that occurs only in identical twins while they are in the womb.
Causes, incidence, and risk factors
ttts occurs when blood moves from one twin. ...Read more
LMP 4/27/14. EDD of 2/17/15 for twins on 6/23/14 at 5w4d and 5w5d. What is the worst case conception date? If its +/-7d could sex from 5/1 be a factor
Sure: May 1 is only 4 days from April 27. In real life, when talking about ultrasound dating of a fetus around 5-6 weeks gestation, the dates April 27, April 28, April 29, April 30, and May 1 can be seen as "the same time" or "the same day". That's because real life is never exact. ...Read more