Monochorionic diamniotic twin pregnancies have a more hazardous intrauterine stay than their dichorionic counterparts because of the vascular anastomoses ...Clipboard,SearchHistory,andseveralotheradvancedfeaturesaretemporarilyunavailable.SkiptomainpagecontentCOVID-19InformationPublichealthinformation(CDC)Researchinformation(NIH)SARS-CoV-2data(NCBI)Preventionandtreatmentinformation(HHS)Español AccesskeysNCBIHomepageMyNCBIHomepageMainContentMainNavigationSearch:SearchAdvancedClipboardUserGuideSaveEmailSendtoClipboardMyBibliographyCollectionsCitationmanagerDisplayoptionsDisplayoptionsFormatAbstractPubMedPMIDSavecitationtofileFormat:Summary(text)PubMedPMIDAbstract(text)CSVCreatefileCancelEmailcitationSubject:1selecteditem:20726437-PubMedTo:Format:SummarySummary(text)AbstractAbstract(text)MeSHandotherdataSendemailCancelAddtoCollectionsCreateanewcollectionAddtoanexistingcollectionNameyourcollection:Namemustbelessthan100charactersChooseacollection:UnabletoloadyourcollectionduetoanerrorPleasetryagainAddCancelAddtoMyBibliographyMyBibliographyUnabletoloadyourdelegatesduetoanerrorPleasetryagainAddCancelYoursavedsearchNameofsavedsearch:Searchterms:TestsearchtermsWouldyoulikeemailupdatesofnewsearchresults?SavedSearchAlertRadioButtonsYesNoEmail:(change)Frequency:MonthlyWeeklyDailyWhichday?ThefirstSundayThefirstMondayThefirstTuesdayThefirstWednesdayThefirstThursdayThefirstFridayThefirstSaturdayThefirstdayThefirstweekdayWhichday?SundayMondayTuesdayWednesdayThursdayFridaySaturdayReportformat:SummarySummary(text)AbstractAbstract(text)PubMedSendatmost:1item5items10items20items50items100items200itemsSendevenwhentherearen'tanynewresultsOptionaltextinemail:SaveCancelCreateafileforexternalcitationmanagementsoftwareCreatefileCancelYourRSSFeedNameofRSSFeed:Numberofitemsdisplayed:510152050100CreateRSSCancelRSSLinkCopyActionsCiteFavoritesDisplayoptionsDisplayoptionsFormatAbstractPubMedPMIDSharePermalinkCopyPagenavigationTitle&authorsAbstractSimilararticlesCitedbyPublicationtypesMeSHtermsRelat

Monochorionic monoamniotic twinning: Occurs when twins share both inner and outer membrane and therefore have no dividing membrane. These cases have all of the ...InthissectionFetalConcernsCenterConditionsProgramsandservicesResourcesPatientstoriesOurlocationOurspecialistsGetasecondopinionResearchandoutcomesFormedicalprofessionalsCongenitalDiaphragmaticHernia:FromdiagnosistodeliveryandbeyondDiagnosisandmanagementofmonochorionic-diamniotictwinsCutting-edgeheartcarebeginsbeforebirthOnthevanguardofbestpracticesingastroschisisSequencingthegenometoaddresspediatricabnormalitiesanddiseaseWombwithaviewHome>Medicalcare>FetalConcernsCenter>Fetalconcernscenterformedicalprofessionals>Diagnosisandmanagementofmonochorionic-diamniotictwinsDiagnosisandmanagementofmonochorionic-diamniotictwinsWrittenbyErikaPeterson,MDMonochorionic-diamniotictwinsaccountforapproximately20%ofspontaneoustwinsandapproximately4%oftwinsconceivedbyartificialreproductivetechniques.Confirmationofthechorionicityoftwinsisimportantasthereareuniquepotentialcomplicationsofmonochorionictwins,andthemanagementandultrasoundsurveillanceisdifferentthanthatofdichorionictwins.Monochorionictwinsareknowntohaveahigherriskofpregnancycomplicationswhencomparedtodichorionictwins.Risksexclusivetomonochorionictwinsinclude:Discordanceofstructuraldefects:TheoverallriskofstructuraldefectsishigherinMCtwins(8%)comparedtoDCtwins(3%)andthereisa5%riskofcongenitalcardiacdefects.Thepresenceofthesedefectscanalsobemorecomplicatedwithmonochorionictwinsasthereisanincreasedriskofcomplicationstothenormalfetus.Selectiveintrauterinegrowthrestriction(IUGR):UnequalplacentalsharingcanleadtoriskofIUGRinonetwin.Thisoccursin10-ˇ15%ofmonochorionictwins.RiskoffetaldemiseduetoIUGRismorecomplicatedduetoplacentalvascularconnectionsthatcanleadeithertodemiseorneurologicinjuryoftheothertwin.Twin-twintransfusionsyndrome(TTTS):Occursinabout10%ofmonochorionictwinsandaccountsforthemajorityofthemorbidityandmortalityofMCtwins.Thepathophysiologyisnotentirelyclear,butit

Objective: It is generally believed that monochorionic-diamniotic twin pregnancies result from one fertilized oocyte with both siblings having the same ...Clipboard,SearchHistory,andseveralotheradvancedfeaturesaretemporarilyunavailable.SkiptomainpagecontentCOVID-19InformationPublichealthinformation(CDC)Researchinformation(NIH)SARS-CoV-2data(NCBI)Preventionandtreatmentinformation(HHS)Español AccesskeysNCBIHomepageMyNCBIHomepageMainContentMainNavigationSearch:SearchAdvancedClipboardUserGuideSaveEmailSendtoClipboardMyBibliographyCollectionsCitationmanagerDisplayoptionsDisplayoptionsFormatAbstractPubMedPMIDSavecitationtofileFormat:Summary(text)PubMedPMIDAbstract(text)CSVCreatefileCancelEmailcitationSubject:1selecteditem:18567067-PubMedTo:Format:SummarySummary(text)AbstractAbstract(text)MeSHandotherdataSendemailCancelAddtoCollectionsCreateanewcollectionAddtoanexistingcollectionNameyourcollection:Namemustbelessthan100charactersChooseacollection:UnabletoloadyourcollectionduetoanerrorPleasetryagainAddCancelAddtoMyBibliographyMyBibliographyUnabletoloadyourdelegatesduetoanerrorPleasetryagainAddCancelYoursavedsearchNameofsavedsearch:Searchterms:TestsearchtermsWouldyoulikeemailupdatesofnewsearchresults?SavedSearchAlertRadioButtonsYesNoEmail:(change)Frequency:MonthlyWeeklyDailyWhichday?ThefirstSundayThefirstMondayThefirstTuesdayThefirstWednesdayThefirstThursdayThefirstFridayThefirstSaturdayThefirstdayThefirstweekdayWhichday?SundayMondayTuesdayWednesdayThursdayFridaySaturdayReportformat:SummarySummary(text)AbstractAbstract(text)PubMedSendatmost:1item5items10items20items50items100items200itemsSendevenwhentherearen'tanynewresultsOptionaltextinemail:SaveCancelCreateafileforexternalcitationmanagementsoftwareCreatefileCancelYourRSSFeedNameofRSSFeed:Numberofitemsdisplayed:510152050100CreateRSSCancelRSSLinkCopyFulltextlinksWileyFulltextlinksActionsCiteFavoritesDisplayoptionsDisplayoptionsFormatAbstractPubMedPMIDSharePermalinkCopyPagenavigationTitle&authorsAbstractSimilararticlesCitedbyP