1.Logistic regression analysis of fetal malnutrition and its affected factors
Younan LIU ; Qiming FENG ; Yi LIU
Chinese Journal of Practical Pediatrics 2001;(1):23-24
Objective To investigate the incidence of fetal malnutrition( FM), its affected factors and their relationship with small - for gestational - age (SGA) fetus. Methods The intrauterinal growth of fetus was evaluated by the body weight of neonates and FM was detected by clinical assessment of nutritional status ( CANS ). Results ①33 out of 204 cases were found to be FM (16% ). FM in SGA group was significantly higher than that in AGA group ( 5.9% ) (x2 = 69.9, P < 0. 01 ).② When ot = 0. 05, the body weight and head circumference of neonates, the education level of mothers were included into logistic regression model, and their regression coefficient were negative. Conclusion SGA was supposed to be two of the risk factors in developing FM. Fetus with low body weight, small head circumference and not - so - well educated mother were prone to suffer from FM.
2.Measurement of specific IgG avidity for verification of recent primary cytomegalovirus infection
Ge LI ; Jie XIONG ; Zhifeng LIU
Chinese Journal of Practical Pediatrics 2001;(3):162-164
Objective To distinguish primary CMV infection from reactivation or reinfection. Methods A urea denaturation test was included in the washstep of the standard IgG ELISA in 12 patients of age<12 whose serum CMV-IgG were positive, avidity indexes of CMV-IgG were measured. Results Among children aged 1~12 years, the varieties of avidity indexes of CMV-IgG in A group(IgM negative and IgG positive) and B group(IgM positive and IgG positive) had the same trend. There was only one case in B group whose avidity index was under 30%, the other were all above 30%, and most were above 50%. But among 40 children aged 1~12 months,the avidity indexes were under 30% in 21 cases,8 cases were 30~50% ,and 11 cases were above 50%. The antibody avidity in 1~6 months children was influenced by their mothers lgG,80% (12/15) of 7 ~12 months children had low-avidity antibodies. Conclusion CMV infection mostly occurred among 1~12 months children. Urea denaturation test was an efficient method to distinguish primary CMV infection from reactivation or reinfection.
3.The clinical evaluation of gas exchange impairment in neonatal respiratory failure
Danhua WANG ; Weilin WAN ; Shimin ZHAO
Chinese Journal of Practical Pediatrics 2001;(3):159-161
Objective To study the clinical evaluation of gas exchange impairment in neonatal respiratory failure.Methods Blood gas, PaO2/PAO2, Qs/QT, PaO2/FiO2, A-aDO2 and RI of 53 newborn infants with respiratory failure in NICU of PUMCH from Jan. 1993 to Dec. 1997 were measured. Results These infants were divided into two groups according to PaO2/PAO2: moderate and severe respiratory failure. Qs/QT(11±3)%, PaO2/FiO2(183±113), A-aDO2(22.9±6.8)kPa, RI(2.5 ±0.8) in 21 neonates with moderate respiratory failure; Qs/QT(24±6)%, PaO2/FiO2 (82±30), A-aDO2 (49.3 ± 17.8)kPa,RI(7.6 ±3.4) in 32 neonates with severe respiratory failure(P<0.001). These results in respiratory failure caused by different pathogenesis were different. In meconium aspiration and pneumothorax group there were the highestQs/QT(32±3)% ,A-aDO2 (69.8 ± 12.2)kPa,RI(9.2 ±2.9)and the lowest PaO2/FiO2 (77±39). Mortality of infants with high pulmonary shunt was high. Qs/QT(17±8)% in 38 survives and (24±6)% in 10 died neonates( P<0.05). Conclusion The clinical evaluation using these indexes for newborn infants with respiratory failure is beneficial in recognizing pathogenesis,guiding therapy and evaluating prognosis.
7.Mast cells and cardiovascular disease.
Chinese Journal of Pediatrics 2010;48(10):794-797