Abstract oral session 2014 World Cancer Congress

Pregnancy outcomes following diagnosis and treatment of adolescent and young adult cancer (#342)

Fatima A Haggar 1 , David B Preen 2 , Gavin Pereira 3 , D'Arcy Holman 2 , Kristjana Einarsdottir 4
  1. The Ottawa Hospital Health Research Institute, Ottawa, ON, Canada
  2. The School of Population Health, The University of Western Australia , Perth, WA, Australia
  3. Yale Center for Perinatal, Pediatric and Environmental Epidemiology at the Yale School of Public Health, New Haven, CT, USA
  4. Centre for Child Health Research, Telethon Institute for Child Health Research, Subiaco, WA, Australia

Background: Improvements in cancer therapy have led to an expanding population of  adolescent and young adult (AYA) cancer survivors. In contrast to childhood survivors, there is a still lack of data concerning reproductive outcomes among AYA survivors.

Aim: To investigate obstetric and perinatal outcomes among female survivors of AYA cancers and their offspring. 

Methods:Using multivariate analysis of statewide linked data, outcomes of all first completed pregnancies (n=1894) in female survivors of AYA cancer diagnosed in Western Australia during the period 1982-2007 were compared with those among  females with no cancer history. Comparison pregnancies were matched by maternal age-group, parity and year of delivery.

Results:Compared with the non-cancer group, survivors of AYA cancer had an increased risk of threatened abortion (adjusted relative risk 2.09, 95% confidence interval 1.51-2.74), gestational diabetes (2.65, 2.08–3.57), pre-eclampsia (1.32, 1.04–1.87), post-partum hemorrhage (2.83, 1.92–4.67), cesarean delivery (2.62, 2.22–3.04), and maternal postpartum hospitalization >5 days (3.01, 1.72–5.58), but no excess risk of threatened preterm delivery, antepartum hemorrhage, premature rupture of membranes, failure of labor to progress or retained placenta. Their offspring had an increased risk of premature birth (<37 weeks: 1.68, 1.21–2.08), low birth weight (<2500 g: 1.51, 1.23–2.12), fetal growth restriction (3.27, 2.45–4.56), and neonatal distress indicated by low Apgar score (<7) at 1 minute (2.83, 2.28–3.56), need for resuscitation (1.66, 1.27–2.19) or special care nursery admission (1.44, 1.13–1.78). Congenital abnormalities and perinatal deaths (intrauterine or ≤7 days of birth) were not increased among offspring.

Conclusions: Survivors of AYA cancer have moderate excess risks of adverse obstetric and perinatal outcomes arising from subsequent pregnancies that may require additional surveillance or intervention. 

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English »AfrikaansAlbanianArabicArmenianAzerbaijaniBasqueBengaliBelarusianBulgarianCatalanChinese (Simp)Chinese (Trad)CroatianCzechDanishDutchEnglishEsperantoEstonianFilipinoFinnishFrenchGalicianGeorgianGermanGreekGujaratiHaitian CreoleHebrewHindiHungarianIcelandicIndonesianIrishItalianJapaneseKannadaKoreanLaoLatinLatvianLithuanianMacedonianMalayMalteseNorwegianPersianPolishPortugueseRomanianRussianSerbianSlovakSlovenianSpanishSwahiliSwedishTamilTeluguThaiTurkishUkrainianUrduVietnameseWelshYiddish 
Options : History : Help : FeedbackText-to-speech function is limited to 100 characters