目的探討臍靜脈插管術(shù)在早產(chǎn)兒中的應(yīng)用效果.Objective To explore the effect of umbilical vein catheterization on premature infants.實(shí)驗(yàn)組以帶管芯的氣管導(dǎo)管行盲探經(jīng)鼻氣管插管術(shù),對照組則不帶管芯.Objective To investigate the feasibility of transnasal tracheal intubation with ...