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Slow Heart Rate Predicts Failed Fertility Therapy

by Michelle Rizzo,  REUTERS,  July 22, 2009
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NEW YORK (Reuters Health) - A slow embryo heart rate could mean that mothers who have undergone in vitro fertilization are at increased risk for miscarriage, according to a report in the journal Fertility and Sterility.

Somewhere between 10 and 25 percent of women who undergo in vitro fertilization suffer miscarriages, and slow embryonic heart rates have been known to be a sign of trouble. However, "The boundary between slow and normal embryonic heart rates has not been well established in the infertile population," study co-author Dr. Zev Rosenwaks, of Weill Medical College of Cornell University, New York, and colleagues write.

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