02.05.2013 Views

Download het volledig rapport (302 p.) - KCE

Download het volledig rapport (302 p.) - KCE

Download het volledig rapport (302 p.) - KCE

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

<strong>KCE</strong> reports vol. 6A Prenatale zorg 239<br />

2. Vitamins<br />

2.a. Vitamin A<br />

Does vitamin A supplementation during pregnancy improve maternal and perinatal outcomes?<br />

Study Ref Population Intervention Outcomes Results Comments Study<br />

Van DE et al., 2004<br />

Date of most recent<br />

substantive<br />

amendment: 22<br />

August 2002<br />

125 5 RCTs<br />

23,426<br />

women<br />

Varried<br />

between trials<br />

Maternal<br />

mortality<br />

Night<br />

blindness<br />

Anaemia<br />

2. b. Vitamins C & E (the antioxidants) in pregnancy<br />

All 3 outcomes were significantly<br />

improved in the Nepal trial, but not in<br />

the others. Because this was by far<br />

the largest, the combined odds ratio<br />

was affected<br />

Differences between the trials with regard to<br />

the dose of vitamin A given, the combination<br />

with additional micronutrients (iron, folate,<br />

vitamin D) and the duration of supplementation.<br />

Does vitamin C & E supplementation during pregnancy improve maternal and perinatal outcomes?<br />

Study Ref Population Intervention Outcomes Results Comments Study<br />

Gulmezoglu<br />

et al, 1997<br />

Chappell et al,<br />

1999<br />

Steyn et al,<br />

2003<br />

126 South Africa; Women with severe<br />

pre-eclampsia diagnosed between<br />

24 and 32 weeks of gestation; total<br />

56 women<br />

127 London, 283 women identified as<br />

being at increased risk of preeclampsia<br />

by abnormal uterine-<br />

artery doppler<br />

128 203 women with a history of PTB<br />

or 2nd trimester miscarriage<br />

recruited before 26 weeks<br />

Vitamin E (800 IU/day),<br />

vitamin C (1000 mg/day), and<br />

allopurinol (200 mg/day<br />

Vitamin C (1000 mg/day) and<br />

vitamin E (400 IU/day) or<br />

placebo at 16-22 weeksÊÊÊ<br />

gestation<br />

Vitamin C (250 mg/day) until<br />

33 weeks<br />

Complications of<br />

pre-eclampsie<br />

NS decrease in preterm birth<br />

( in the antioxidant group was<br />

52% (14/27) compared with 76%<br />

(22/29)<br />

Insufficient<br />

power.<br />

EL<br />

type<br />

SR 1a<br />

EL<br />

type<br />

DBRP 1b<br />

Pre-eclampsie OR 0.39 [0.17-0.90] RCT 1b<br />

Preterm labour Birth prior to 37 weeks more<br />

likely in treated arm<br />

DBRP 1b

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!