Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Mitral Valve Prolapse III: Nursing Management01:19

Mitral Valve Prolapse III: Nursing Management

The nursing management of Mitral Valve Prolapse, or MVP, centers around patient education, symptom monitoring, and lifestyle modifications.Patient Education on MVP Diagnosis and Heredity: Nurses should provide comprehensive education about MVP, a condition where the mitral valve does not close appropriately during heartbeats. This education often includes the condition's pathophysiology, symptoms, and potential complications, like arrhythmias or mitral regurgitation. Though not fully...
Multiple Allele Traits01:49

Multiple Allele Traits

The Concept of Multiple Allelism
Nondisjunction01:29

Nondisjunction

During meiosis, chromosomes occasionally separate improperly. This occurs due to failure of homologous chromosome separation during meiosis I or failed sister chromatid separation during meiosis II. In some species, notably plants, nondisjunction can result in an organism with an entire additional set of chromosomes, which is called polyploidy. In humans, nondisjunction can occur during male or female gametogenesis and the resulting gametes possess one too many or one too few chromosomes.
Nondisjunction01:21

Nondisjunction

Nondisjunction is the failure of homologous chromosomes or sister chromatids to separate correctly and move to the opposite poles of the cells. This produces daughter cells with abnormal chromosome numbers.  Nondisjunction is common during anaphase I or anaphase II of meiosis.  Mutations in synaptonemal complex proteins that attach homologous chromosomes increase the chances of nondisjunction in anaphase I of meiosis I. In contrast, mutations in topoisomerases and condensins that hold sister...
Ovarian Cycle01:27

Ovarian Cycle

The menstrual cycle includes a critical component known as the ovarian cycle, which undergoes two main phases each month—the follicular phase and the luteal phase. The follicular phase is variable and averaging around 14 days. Ovulation, triggered by a surge in luteinizing hormone (LH), marks the transition between the two phases. The second phase, the luteal phase, is relatively consistent, lasting approximately 14 days, and is marked by the activity of the corpus luteum. While a cycle length...
Trihybrid Crosses02:27

Trihybrid Crosses

Trihybrid Crosses
Some of Mendel’s crosses examined three pairs of contrasting characteristics. Such a cross is called a trihybrid cross. A trihybrid cross is a combination of three individual monohybrid crosses. For example, plant height (tall vs. short), seed shape (round vs. wrinkled), and seed color (yellow vs. green).
The F1 generation plants of a trihybrid cross are heterozygous for all three traits and produce eight gametes. Upon self-fertilization, these gametes have an equal chance to...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Longitudinal Doppler Assessments in Late Preterm Fetal Growth Restriction.

Ultraschall in der Medizin (Stuttgart, Germany : 1980)·2021
Same author

Why are discrepant malformations in twins so challenging?

BJOG : an international journal of obstetrics and gynaecology·2020
Same author

Fetal cerebral Doppler changes and outcome in late preterm fetal growth restriction: prospective cohort study.

Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology·2020
Same author

An abnormal cerebroplacental ratio (CPR) is predictive of early childhood delayed neurodevelopment in the setting of fetal growth restriction.

American journal of obstetrics and gynecology·2019
Same author

Preliminary modeling of effective positioning of Arabin cerclage pessary in women at high risk of preterm birth.

Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology·2019
Same author

Comparative analysis of 2-year outcomes in GRIT and TRUFFLE trials.

Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology·2019
Same journal

[Revisiting Risk Classification in the German Maternity Record: First Results from the FeMaR Study].

Zeitschrift fur Geburtshilfe und Neonatologie·2026
Same journal

[Omega-3 polyunsaturated fatty acids for risk reduction of preterm birth: Evidence and current recommendations].

Zeitschrift fur Geburtshilfe und Neonatologie·2026
Same journal

[Interface management in perinatal palliative medicine - Multiprofessional perinatal palliative care consultation and support: Implementation hurdles and solution strategies].

Zeitschrift fur Geburtshilfe und Neonatologie·2026
Same journal

[Stroke and Cerebral Sinovenous Thrombosis in the Newborn (S2k-Leitlinie, AWMF-Register-Nr. 024-024, Version 1.0)].

Zeitschrift fur Geburtshilfe und Neonatologie·2026
Same journal

Zeitschrift fur Geburtshilfe und Neonatologie·2026
Same journal

Thanatophoric Dysplasia Type 1 with Severe Pulmonary Hypoplasia: Discharge after Tracheostomy.

Zeitschrift fur Geburtshilfe und Neonatologie·2026
See all related articles

Related Experiment Video

Updated: Jun 16, 2026

Guide Wire Assisted Catheterization and Colored Dye Injection for Vascular Mapping of Monochorionic Twin Placentas
09:04

Guide Wire Assisted Catheterization and Colored Dye Injection for Vascular Mapping of Monochorionic Twin Placentas

Published on: September 5, 2011

[Monoamniotic multiple pregnancies].

B Arabin1

  • 1Mutter-Kind Zentrum , Philipps-Universität Marburg, Marburg, Germany. bine.clara.angela@gmail.com

Zeitschrift Fur Geburtshilfe Und Neonatologie
|January 26, 2010
PubMed
Summary
This summary is machine-generated.

Monochorionic monoamniotic (MCMA) twin pregnancies are rare but serious. Intensified surveillance and timely Cesarean sections improve survival rates for these high-risk multiple births.

More Related Videos

Accurate and Simple Evaluation of Vascular Anastomoses in Monochorionic Placenta using Colored Dye
09:52

Accurate and Simple Evaluation of Vascular Anastomoses in Monochorionic Placenta using Colored Dye

Published on: September 5, 2011

Related Experiment Videos

Last Updated: Jun 16, 2026

Guide Wire Assisted Catheterization and Colored Dye Injection for Vascular Mapping of Monochorionic Twin Placentas
09:04

Guide Wire Assisted Catheterization and Colored Dye Injection for Vascular Mapping of Monochorionic Twin Placentas

Published on: September 5, 2011

Accurate and Simple Evaluation of Vascular Anastomoses in Monochorionic Placenta using Colored Dye
09:52

Accurate and Simple Evaluation of Vascular Anastomoses in Monochorionic Placenta using Colored Dye

Published on: September 5, 2011

Area of Science:

  • Reproductive Medicine
  • Maternal-Fetal Medicine
  • Genetics

Context:

  • Monochorionic monoamniotic (MCMA) twin pregnancies are exceptionally rare, occurring in approximately 0.004% of live births.
  • Their etiology involves delayed blastocyst splitting, with underlying stimuli and mechanisms remaining largely unknown.
  • Incidence is notably higher following assisted reproductive techniques.

Purpose:

  • To review the diagnosis, complications, and management of monochorionic monoamniotic (MCMA) twin pregnancies.
  • To highlight the advancements in ultrasonography for early detection and monitoring.
  • To discuss strategies for improving perinatal outcomes in these high-risk pregnancies.

Summary:

  • Modern ultrasonography has significantly improved the diagnosis of MCMA twins and associated complications like cord entanglement, malformations, preterm delivery, and twin-twin transfusion syndrome.
  • Intensified surveillance protocols have enhanced the chances of intact survival to 80-90%.
  • Current recommendations include delivery via Cesarean section around 32 weeks of gestation.

Impact:

  • Improved diagnostic capabilities and vigilant monitoring have led to better survival rates for MCMA twins.
  • Postnatal placental and anastomosis investigations deepen the understanding of MCMA pathophysiology.
  • Optimized management strategies contribute to improved neonatal outcomes in rare multiple gestations.