The use of assisted reproductive te...

The use of assisted reproductive technology to help infertile leashs conceive is steadily increasing. The Center for Disease curb and Prevention (CDC) collects nationwide data from fertility clinics each year upon success rates for achieving pregnancy and live births. Data are also tracked for the incidence of multifetal gestations, single of the chief complications of assisted reproductive meanss Pressure has mounted to decrease the number of first stages transferred in pregnancy attempts, because multifetal gestations are associated with serious health risks for mothers and children. Jain and associates analyzed national data to determine tends in pregnancy success rates and the incidence of multifetal gestations.

CDC data from fertility clinics from the years 1995 to 2001 were used for the cogitation The authors limited their analysis to unimpaired embryos from a woman's hold eggs, which is the means used by most infertile links Data were stratified according to four maternal age arranges (less than 35 years, 35 to 37 years of age, 38 to 40 years of age, and more than 40 years). Despite federal laws requiring the reporting of succes rates, 5 to 9 percent of fertility clinics failed to provide statistics in any given year of the reflection A successful pregnancy was defined as common or more gestational sacs seen in the uterus by the agency of first trimester ultrasound examination. Live birth data were obtained from National Vital Statistics Reports.

The number of infertility clinics and fresh-embryo transfer attempts steadily increased nationwide from 1995 to 2001 The rate of achieving pregnancy was higher than the rate of live births, and the pair numbers increased for all age clusters over the course of the cogitation The average number of [i]de novo[/i] embryos transferred in each attempt declined in later years, with no deleterious weight on the rate of live births. While rates of twin deliveries did not decrease during the reflection the incidence of triplet and higher number multifetal gestations stopped its steady climb and stabilized after 1998 according to national data.

The authors judge that pregnancy and live-birth succes rates for assisted reproductive technology improved steadily from 1995 to 2001 and the number of triplets and higher number multifetal gestations flated off in recent years.

Jain T et al. tends in embryo-transfer practice and in issues of the use of assisted reproductive technology in the United States. N Engl J M April 15 2004;350:1639-45

EDITOR'S NOTE: Family physicians ofttimes are involved when infertile married pairs begin the decision process regarding the use of assisted reproductive technology. While succes rates and the risk of multifetal gestation will, of course, vary depending in succession individual circumstances, national data in the same state [i]or[/i] condition as these do help ties to realistically consider their overall left over s before embarking on a proces that involves considerable emotional and financial risks.--B.Z.

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