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,,(NICU),,,,,,CO2O2,11CO2:CO2,CO2,,:=(-)RR,,;,(peakinspirationpressure,PIP)(peakend2expiratorypressure,PEEP),,,PaCO2PaCO2,PIPPEEP(PIPPEEP)PaCO2,21O2:(meanairwaypressure,MAP)(fractionofinspiredoxygen,FiO2)MAP,MAP,:MAP=K(PIPTI+PEEPTE)/(TI+TE)K:(015,110);TI:;TE:MAP515cmH2OPIPPEEP/(inspiration/expirationratio,I/E)MAP,PaO2MAP,:PIPPEEPI/E;PEEP8cmH2O,PEEP,PaO2;MAP,,,,MAP,FiO2PaO2PaO2PaCO2,,,,,11:FiO2016,PaO250mmHg(transcutaneousoxygensaturation,TcSO2)85%();PaCO260270mmHgpH7125;RDS21:,,,,,,/(A/C)(IMV)(SIMV),A/CSIMV,,,,-1-3cmH2O,13L/min31:,(1)1Flow(L/min)PIP(cmH2O)PEEP(cmH2O)RR(/min)TI(s)81210122415200150175RDS8122030462060014016MAS812202524204001501758122025242040015PPHN1520203024501200158122530683545015017541:,,,1530min,,2,,,46hPCO2,TcSO265320045425ChinJPediatr,May2004,Vol42,No.52TcSO2PaO2(mmHg)TcSO2(%)PaCO2(mmHg)pH:5070859330507130714560809095305071307145PPHN:60809095253071457155801009598253071457155,()51:12,(3)61:,,,3PIP12cmH2OPPEP12cmH2OTI0105011SRR5/minFiO20105,;PIP1820cmH2O,PEEP=2cmH2O,10/,FiO2014,,CPAP,PEEP,14h,,,,CPAP()(:2003209219)(:)2004726,(12),,:(1)IVIG;(2);(3);(4);(5);(6);(7);(8)ITP,2004612,(E-mail)E2mail:7019518026,:0755283936083;0755283936110:0755283936148E2mail:linyingshenzhen@163.net,20041,,,,,,15.00,:57,310003,:05712870610072241875320045425ChinJPediatr,May2004,Vol42,No.5