Maternal and Foetal Hazards Associated With Twin Pregnancy

Russell, J. K.

doi:10.1111/j.1471-0528.1952.tb04116.x

Cited by 35 publications

(12 citation statements)

References 7 publications

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“…The hazards of polytocia as limited factors have been emphasised by a num ber of authors (4,10,11,16). It would seem to be a m atter of general agreem ent th a t even in the countries of northw est Europe, not more than 20 to 50 per cent of all the twins conceived are alive at the end of the term of pregnancy.…”

Section: Discussionmentioning

confidence: 99%

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Variations in the Human Twinning Rate

Eriksson¹

1962

Hum Hered

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Section: Discussionmentioning

confidence: 99%

“…Other investigators have laid stress upon social factors (10,11,14). In towns, the frequency of multiple births is lower than th at in the surrounding rural areas also when one compares the incidence among m others in the various age groups (12).…”

mentioning

confidence: 99%

Variations in the Human Twinning Rate

Eriksson¹

1962

Hum Hered

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“…Incidences of 20-30% are reported, 3-5 times higher than in singleton pregnancies [1][2][3]. Unfortunately, the older studies in particular lack adequate control groups and the criteria used to define hypertensive disease vary markedly [3,[4][5][6][7][8]. In some cases no distinction is made between pregnancy associated with hypertension already existing before pregnancy and pregnancy-induced hypertensive disorders, with or without proteinuria [4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

“…Unfortunately, the older studies in particular lack adequate control groups and the criteria used to define hypertensive disease vary markedly [3,[4][5][6][7][8]. In some cases no distinction is made between pregnancy associated with hypertension already existing before pregnancy and pregnancy-induced hypertensive disorders, with or without proteinuria [4][5][6][7][8]. In addition, many reports do not distinguish between proteinuric pre-eclampsia, with its increased maternal and fetal risks, and non-proteinuric pregnancy-induced hypertension, the main risk of which is the development of pre-eclampsia [9].…”

Section: Introductionmentioning

confidence: 99%

Hypertensive disorders in twin pregnancy

Santema¹,

Koppelaar²,

Wallenburg³

1995

European Journal of Obstetrics & Gynecology and Reproductiv

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Objective: To compare the incidence and severity of pregnancy-induced hypertensive disorders in twin pregnancy and in singleton gestation. Study design: Case-control study in the setting of a University HOspital. Each pregnancy of a consecutive series of 187 twin pregnancies attending the antenatal clinic and booked before a gestational age of 24 weeks was matched for maternal age, parity, and gestational age at delivery with a singleton pregnancy delivered in the same year. Primary end points of the analysis of the course and outcome of pregnancy were pregnancy-induced hypertension and proteinuric pre-eclampsia. Results: In the twin pregnancy group, 21% of patients met the criteria for the diagnosis of a pregnancy-induced hypertensive disorder, compared with 13% in the singleton pregnancy group (P < 0.05). The difference was due to a significantly higher incidence of pregnancy-induced hypertension in twin (15%) than in singleton (6%) pregnancy (P < 0.05), in particular in nulliparous women. The incidence of preeclampsia was similar in twin (6%) and singleton pregnancies (6.5%), without a difference in severity and in the occurrence of the HELLP syndrome. Conclusion: The incidence of non-proteinuric pregnancy-induced hypertension, but not of proteinuric preeclampsia, is increased in twin pregnancy.

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“…Hospital admission has been advocated in the past for women with a twin pregnancy, as a means of reducing the risk of preterm birth and improving fetal growth [7]. However, the Cochrane Systematic Review assessing the role of hospitalisation and bed rest for women with an uncomplicated twin pregnancy has found the practice to be associated with an increase in the risk of preterm birth, and should not be offered as part of routine care [8].…”

Section: Introductionmentioning

confidence: 99%