Biomaterial Database

Outcomes of pregnancies complicated by beta-thalassemia/hemoglobin E disease. 2009

Suchaya Luewan, and Kasemsri Srisupundit, and Theera Tongsong

Department of Obstetrics and Gynecology, Faculty of Medicine, Chiang Mai University, Thailand.

OBJECTIVE To assess the outcomes of pregnancies affected by beta-thalassemia/hemoglobin E (beta-thal/HbE) disease. METHODS A retrospective cohort study was conducted with 54 women with singleton pregnancies complicated by beta-thal/HbE disease only. The controls-to-cases ratio was 2:1. RESULTS Although maternal outcomes were similar in both groups, gestational age at birth and birth weight were significantly lower in the study group and the cesarean delivery rate was significantly higher in that group (relative risk [RR], 2.1). The incidences of fetal growth restriction, preterm birth, and low birth weight were also significantly higher in the study group, with RRs of 2.8, 2.7, and 5.6, respectively. CONCLUSIONS Pregnancies affected by beta-thal/HbE disease were significantly associated with an increased risk of fetal growth restriction, preterm birth, and low birth weight.

UI	MeSH Term	Description	Entries
D007230	Infant, Low Birth Weight	An infant having a birth weight of 2500 gm. (5.5 lb.) or less but INFANT, VERY LOW BIRTH WEIGHT is available for infants having a birth weight of 1500 grams (3.3 lb.) or less.	Low Birth Weight,Low-Birth-Weight Infant,Birth Weight, Low,Birth Weights, Low,Infant, Low-Birth-Weight,Infants, Low-Birth-Weight,Low Birth Weight Infant,Low Birth Weights,Low-Birth-Weight Infants
D007231	Infant, Newborn	An infant during the first 28 days after birth.	Neonate,Newborns,Infants, Newborn,Neonates,Newborn,Newborn Infant,Newborn Infants
D007234	Infant, Premature	A human infant born before 37 weeks of GESTATION.	Neonatal Prematurity,Premature Infants,Preterm Infants,Infant, Preterm,Infants, Premature,Infants, Preterm,Premature Infant,Prematurity, Neonatal,Preterm Infant
D011247	Pregnancy	The status during which female mammals carry their developing young (EMBRYOS or FETUSES) in utero before birth, beginning from FERTILIZATION to BIRTH.	Gestation,Pregnancies
D011250	Pregnancy Complications, Hematologic	The co-occurrence of pregnancy and a blood disease (HEMATOLOGIC DISEASES) which involves BLOOD CELLS or COAGULATION FACTORS. The hematologic disease may precede or follow FERTILIZATION and it may or may not have a deleterious effect on the pregnant woman or FETUS.	Complications, Hematologic Pregnancy,Hematologic Pregnancy Complications,Pregnancy Complications, Hematological,Pregnancy, Hematologic Complications,Complication, Hematologic Pregnancy,Complication, Hematological Pregnancy,Complications, Hematological Pregnancy,Hematologic Pregnancy Complication,Hematological Pregnancy Complication,Hematological Pregnancy Complications,Pregnancies, Hematologic Complications,Pregnancy Complication, Hematologic,Pregnancy Complication, Hematological
D011256	Pregnancy Outcome	Results of conception and ensuing pregnancy, including LIVE BIRTH; STILLBIRTH; or SPONTANEOUS ABORTION. The outcome may follow natural or artificial insemination or any of the various ASSISTED REPRODUCTIVE TECHNIQUES, such as EMBRYO TRANSFER or FERTILIZATION IN VITRO.	Outcome, Pregnancy,Outcomes, Pregnancy,Pregnancy Outcomes
D012042	Registries	The systems and processes involved in the establishment, support, management, and operation of registers, e.g., disease registers.	Parish Registers,Population Register,Parish Register,Population Registers,Register, Parish,Register, Population,Registers, Parish,Registers, Population,Registry
D005260	Female		Females
D005317	Fetal Growth Retardation	Failure of a FETUS to attain expected GROWTH.	Growth Retardation, Intrauterine,Intrauterine Growth Retardation,Fetal Growth Restriction,Intrauterine Growth Restriction
D006446	Hemoglobin E	An abnormal hemoglobin that results from the substitution of lysine for glutamic acid at position 26 of the beta chain. It is most frequently observed in southeast Asian populations.