scholarly journals OC22.02: The influence of chorionicity on miscarriage and early perinatal loss in twin pregnancies: the STORK multiple pregnancy cohort

2012 ◽  
Vol 40 (S1) ◽  
pp. 45-45 ◽  
Author(s):  
F. D'Antonio ◽  
T. D. Dias ◽  
A. Bhide ◽  
B. Thilaganathan
Keyword(s):  
Multiple Pregnancy ◽  
Perinatal Loss ◽  
Pregnancy Cohort ◽  
Twin Pregnancies

Spontaneous loss of a co-twin and the risk of birth defects after assisted conception

2016 ◽  
Vol 7 (6) ◽  
pp. 678-684 ◽  
Author(s):  
M. J. Davies ◽  
A. R. Rumbold ◽  
M. J. Whitrow ◽  
K. J. Willson ◽  
W. K. Scheil ◽  
...  
Keyword(s):  
Birth Defects ◽  
Pregnancy Loss ◽  
Multiple Pregnancy ◽  
Fetal Loss ◽  
South Australia ◽  
Increased Risk ◽  
Study Population ◽  
Infertility Patients ◽  
Twin Pregnancies ◽  
Singleton Pregnancies

The study of very early pregnancy loss is impractical in the general population, but possible amongst infertility patients receiving carefully monitored treatments. We examined the association between fetal loss and the risk of birth defects in the surviving co-twin in a retrospective cohort study of infertility patients within an infertility clinic in South Australia from January 1986 to December 2002, linked to population registries for births, terminations and birth defects. The study population consisted of a total of 5683 births. Births from singleton pregnancies without loss were compared with survivors from (1) pregnancies with an empty fetal sac at 6–8 weeks after embryo transfer, (2) fetal loss subsequent to 8-week ultrasound and (3) multiple pregnancy continuing to birth. Odds ratios (OR) for birth defects were calculated with adjustment for confounders. Amongst infertility patients, the prevalence of birth defects was 7.9% for all twin pregnancies without fetal loss compared with 14.6% in pregnancies in which there had been an empty sac at ultrasound, and 11.6% for pregnancies with fetal loss after 6–8 weeks. Compared with singleton pregnancies without loss, the presence of an empty sac was associated with an increased risk of any defect (OR=1.90, 95% confidence intervals (CI)=1.09–3.30) and with multiple defects (OR=2.87, 95% CI=1.31–6.28). Twin pregnancies continuing to birth without loss were not associated with an overall increased prevalence of defects. We conclude that the observed loss of a co-twin by 6–8 weeks of pregnancy is related to the risk of major birth defects in the survivor.

scholarly journals Multiple-Pregnancy Complications

1972 ◽  
Vol 22 (S1) ◽  
pp. 22-26
Author(s):  
H. Skalba ◽  
R. Osuch-Jaczewska ◽  
O. Lempart ◽  
Z. Ochabska
Keyword(s):  
High Mortality ◽  
Pregnancy Complications ◽  
Heart Diseases ◽  
Multiple Pregnancy ◽  
Operative Procedures ◽  
Twin Pregnancies ◽  
Second Twin

The material covers 332 twin pregnancies (including 5 of triplets) of which 208 (62.7%) were premature deliveries and 124 (37.3%) deliveries at term.Of the twin pregnancies included in the group examined 15.7% developed complications (gestosis and eclampsia, kidney and heart diseases, anemia, hydramnios). Spontaneous deliveries were 66.7%, operative deliveries 33.3%. A high mortality of the second twin (13.1%) is noticeable and it increases to 21.4% when operative procedures are applied to the first twin.

Diagnosis of multiple pregnancy in ewes on a field scale

1976 ◽  
Vol 87 (3) ◽  
pp. 671-677 ◽  
Author(s):  
D. J. Rizzoli ◽  
C. G. Winfield ◽  
T. J. Howard ◽  
I. K. J. Englund ◽  
J. R. Goding
Keyword(s):  
Multiple Pregnancy ◽  
Radiographic Examination ◽  
Field Scale ◽  
Twin Pregnancies

SummaryA radiography unit was developed with which two technicians and two assistants were able to diagnose number of foetuses in 400–600 ewes per day on farms. Diagnoses made between 100 and 120 days of gestation in flocks where weekly mating records were made were 95–98% accurate as judged by lambing records. In most flocks more than 90% of twin pregnancies were correctly diagnosed. Agreement between diagnoses and lambing records was reduced when weekly mating records were not available. The radiographic examination had no detrimental effects on ewes or lambs.

scholarly journals OC22.04: Twin actual birthweight discordance and adverse pregnancy outcome: the STORK multiple pregnancy cohort

2012 ◽  
Vol 40 (S1) ◽  
pp. 45-45
Author(s):  
F. D'Antonio ◽  
T. D. Dias ◽  
S. Pescarini ◽  
A. Bhide ◽  
B. Thilaganathan
Keyword(s):  
Pregnancy Outcome ◽  
Adverse Pregnancy Outcome ◽  
Multiple Pregnancy ◽  
Pregnancy Cohort ◽  
Adverse Pregnancy
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