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38:87 Toth B et al. Arch Gyn Obst 2022。 ③ the result is poor using resuscitaing。 ⑵ use warm and dry towel to mop the baby。 ACOG(婦產(chǎn)科學(xué)會(huì) )1996 ? Blood in arteria umbillicalis shows severe metabolism or mixed acidosis, pH< 7 ? Apgar score is 0~ 3 points, and persistence time>5min. ? Nervous system manifestation, such as convulsion、 a or muscular tension low etc. ? MOD Committee on Fetus and Newborn,American Academy of Pediatrics,and Committee on Obstetric Practice,American College of Obstetricians and and abuse of the Apgar ,1996,98(1):141142 ㈢ MOD 1. cardiovascular system (CVS) mild case may presence conducting system and cardiac muscle damaged。 PaO2↓mixed acidosis ? Glucose metabolic disorder catecholamine amp。 metabolism alter in blood fetal pulmonary fluid is removed from lungs ↓ surface active substance(SAS) secretes ↓ functional residual capacity of alveolus set up ↓ pulmonary circulation resistance↓geal circulation resistance↑ ↓ arterial duct amp。 low birth weight, asphyxia and pneumonia. ? There are 1 million newborn death caused by neonatal asphyxia (total 4 million yearly2022. WHO), and 1 million neonates suffer from dysnoesia, cerebral palsy and other deformity caused by it too. Delivery factors Placenta factor Fetal factor umbilical cord factor Pregnant woman Asphyxial etiopathogenisis too older or young Respiratory disease cardiac disease severe anaemia Smoking amp。 drug gestational hypertension Pregnant woman factor polycyesis diabetes placenta praevia placental abruption infarctus ageing Placenta factor short cord knot of umbilical cord umbilical hang down umbilical cord circle neck Umbilical factor 胎兒因素 premature large for date infant intrauterine infection respiratory tract obstruction congenital cardiopathy congenital abnormality foetus factor sucking fetal head forceps aid deliver breech presentation unsuitably use drugs in labor labor extension amp。 ovale foramen shut functionality Normal fetus transform to neonate in respiration amp。 glucagon release early↑→ blood sugar normal or ↑then glycogen depletion, blood sugar↓ ? Hyperbilirubinemia Bilirubin bine with albumin↓、 the vigor of liver enzyme↓→unconjugated bilirubin↑ ? Hyponatremia atrial natriuretic peptide, ADH is parasecretion→diluted hyponatremia ? Hypocalcemia calcium channel open、 calcium pump dysfunction →calcium influx ↑ Blood biochemi