Reviewed By:
Ravi P. Chokshi, MD (Obstetrics and Gynecology (OBGYN), Critical Care)
Current Maternal Fetal Medicine Fellow with Dual board certification in Obstetrics & Gynecology and Critical Care Medicine. | 5+ years experience managing a general Ob/Gyn practice and working in the Intensive Care Unit. | Previously Physician Lead of a large single specialty practice with 8 Physicians and 10+ Advanced practitioners. | Member of the Society of Maternal Fetal Medicine Patient education committee. | Frequent Medscape Consult contributor.
Seiji Kanazawa, MD, PHD (Obstetrics and Gynecology (OBGYN))
Dr. Kanazawa graduated from the Niigata University Faculty of Medicine and received his Ph.D. from the Tohoku University Graduate School of Medicine. He is working on the front line of the General Perinatal Center, including the Tokyo Tama General Medical Center and the National Center for Research in Fertility Medicine, where he provides maternal and fetal care and undertakes clinical research. At Ubie, Dr. Kanazawa has been designing the Ubie AI Symptom Checker and has taken on the role of general obstetrics and gynecology consultation at FMC Tokyo Clinic by providing fetal ultrasound and prenatal consultation.
Content updated on Jan 19, 2024
Following the Medical Content Editorial Policy
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Rapid increase in abdominal circumference
Uterine contractions are coming very frequently
My baby is moving less
Rapid increase in waist circumference
Frequent uterine contractions during pregnancy
My baby isn't moving as much
Rapid increase in waist size
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Twin-to-twin transfusion syndrome (TTTS) is a rare condition that only occurs in pregnancies with identical twins where they share a placenta. The placenta is the organ that provides blood supply from the mom to both babies. In TTTS, there is unequal blood supply with one twin getting more blood than the other. One twin, the donor twin, gives away more blood than it receives, leading to a risk of malnourishment, poor growth and organ failure. The other twin (recipient) receives too much blood, which can cause the heart to be overworked and lead to other cardiac complications. In this condition both twins are at risk for stillbirth and poor outcome, and these pregnancies are considered high risk.
Your doctor may ask these questions to check for this disease:
In twin pregnancies that share a placenta, ultrasound examinations are frequently done to monitor for this condition. These pregnancies need a lot of monitoring and specialist care. If TTTS is detected, fetal laser therapy may be considered to divide the blood supply between the twins.
Yoda H. Fetal and Neonatal Circulatory Disorders in Twin to Twin Transfusion Syndrome (The Secondary Publication). J Nippon Med Sch. 2019;86(4):192-200. doi: 10.1272/jnms.JNMS.2019_86-301. PMID: 31484880.
https://www.jstage.jst.go.jp/article/jnms/86/4/86_JNMS.2019_86-301/_articleTwin-Twin Transfusion Syndrome
https://www.smfm.org/publications/80-twin-twin-transfusion-syndromeTwin-to-Twin Transfusion Syndrome
https://www.ncbi.nlm.nih.gov/books/NBK563133/Male, 30s
I got more answers in one minute through your site than I did in three hours with Google.
(Sep 29, 2024)
Male, 20s
My experience was great. I was worried, but the symptom checker helped me narrow down what it might be. I feel a little relieved compared to when I first started, and it gives me a starting point for what my symptoms could mean.
(Sep 27, 2024)
Male, 50s
The questions asked and possible causes seemed spot on, putting me at ease for a next-step solution.
(Sep 26, 2024)
Female, 40s
I was actually very impressed with the results it provided because, although I didn’t mention it during the questionnaire because I thought it was unrelated, it suggested I may have something I’ve actually been diagnosed with in the past.
(Sep 25, 2024)
Reviewed By:
Ravi P. Chokshi, MD (Obstetrics and Gynecology (OBGYN), Critical Care)
Current Maternal Fetal Medicine Fellow with Dual board certification in Obstetrics & Gynecology and Critical Care Medicine. | 5+ years experience managing a general Ob/Gyn practice and working in the Intensive Care Unit. | Previously Physician Lead of a large single specialty practice with 8 Physicians and 10+ Advanced practitioners. | Member of the Society of Maternal Fetal Medicine Patient education committee. | Frequent Medscape Consult contributor.
Seiji Kanazawa, MD, PHD (Obstetrics and Gynecology (OBGYN))
Dr. Kanazawa graduated from the Niigata University Faculty of Medicine and received his Ph.D. from the Tohoku University Graduate School of Medicine. He is working on the front line of the General Perinatal Center, including the Tokyo Tama General Medical Center and the National Center for Research in Fertility Medicine, where he provides maternal and fetal care and undertakes clinical research. At Ubie, Dr. Kanazawa has been designing the Ubie AI Symptom Checker and has taken on the role of general obstetrics and gynecology consultation at FMC Tokyo Clinic by providing fetal ultrasound and prenatal consultation.
Our symptom checker AI is continuously refined with input from experienced physicians, empowering them to make more accurate diagnoses.
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Ubie’s symptom checker demonstrated a Top-10 hit accuracy of 71.6%, surpassing the performance of several leading symptom checkers in the market, which averaged around 60% accuracy in similar assessments.
Link to full study:
https://www.medrxiv.org/content/10.1101/2024.08.29.24312810v1