Inquiry
Hello Doctor. I am 25 years old. In January of this year, I experienced a spontaneous miscarriage. Currently, I am 8 weeks pregnant according to my physician's calculations, with my last menstrual period on June 25. During my recent examination, the doctor informed me that there was no fetal heartbeat (I underwent a transvaginal ultrasound) and recommended that I return this week for a dilation and curettage to prevent excessive bleeding.
According to the weekly examinations, the gestational sac size has increased. Last week, it measured 18.4 mm, and the embryo was not clearly visible and somewhat obscured. Today, at 8 weeks, I had a follow-up examination, and while the image was clearer, there was still no fetal heartbeat. I would like to ask the doctor if I should wait until next week for another examination. Is it possible that at 8 weeks without a fetal heartbeat, I am experiencing a missed miscarriage? Are there cases where a fetal heartbeat is not detected at 8 weeks but may be observed at 9 or 10 weeks?
Anonymous Customer
Response
Hello,
The criteria for diagnosing a missed miscarriage include an amniotic sac larger than 20 mm without an embryo or a crown-rump length greater than 7 mm without a fetal heartbeat. Since you have not provided this information, it is difficult for the physician to give you a definitive answer. You may visit hospitals within the Vinmec Healthcare System nationwide for consultation and a more detailed examination by experienced physicians. Thank you for trusting us with your inquiry regarding the absence of a fetal heartbeat caused by missed miscarriage at 8 weeks.
Answered by Dr. Nguyễn Quang Nam - Ultrasound Physician - Obstetrics and Gynecology Center - Vinmec Times City International General Hospital.
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