TracheoesophagealFistula气管食管瘘王斌,Case,A12-hour-oldfullterminfant,weighing2.5kgpresentswithchoking(窒息)andcyanosis(发绀)duringitsfirstfeed.Neonatal(新生儿)intensivecareunit(NICU)staffisunabletopassafeedingtubeintothestomach.Thebabyalsohascopious(大量的)oralsecretions(分泌物).Beforebirthpolyhydramnios(羊水过多)wasseen.,1.WhataretheclinicalfeaturesofTEF?,Thispatienthasesophagealatresia(食管闭锁)withtracheoesophagealfistula(TEF).Thisoccursin1per4,000livebirths.Thediagnosisissuspectedprenatally(产前)bythepresenceofpolyhydr