from PART III - ASSISTED REPRODUCTION
Published online by Cambridge University Press: 04 August 2010
INTRODUCTION
Assisted reproductive technology (ART) has become the standard of care for the treatment for many types of infertility. In Denmark, 4 percent of all infants are born after in vitro fertilization (IVF) or intracytoplasmic sperm injection (ICSI). It is well established that children born after ART have poorer outcomes than spontaneously conceived children mainly due to the high rate of multiple births and the associated perinatal mortality, preterm birth, and low birth weights. The evidence relating to ART and congenital anomalies will be discussed in this chapter.
Lancaster's study from the late 1980s was the first to report a higher prevalence of neural tube defects and transposition of the great vessels among IVF children (1). Though ART is considered to be relatively safe, recent evidence has shown an increase in the order of 30–40 percent in birth defects among children conceived by ART compared to infants conceived spontaneously (2–4). This enforces the importance of counseling prospective patients effectively.
Many congenital anomalies are noted at birth and some become apparent later in life. Some malformations are incompatible with life, some can be corrected with surgery, and others are compatible with continued life but cannot be corrected with treatment (5). Some malformations are related to prematurity (e.g., patent ductus arteriosus), some to multiple births, and some to infertility itself.
To save this book to your Kindle, first ensure [email protected] is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about saving to your Kindle.
Note you can select to save to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be saved to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.
Find out more about the Kindle Personal Document Service.
To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Dropbox.
To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Google Drive.