ABSTRACT
Objective To summarize the risk factors of head up tilt test (HUTT) in children with vasovagal syncope,and provide theoretical reference for the diagnosis of vasovagal syncope.Methods The total of 340 children with headache and syncope were included in the study,all the cases received HUTT,including basic tilt table test and sublingual nitroglycerin test.And they were divided into HUTT positive group and HUTT negative group according to the results.The clinical information of two groups was analyzed by multivariate Logistic regression to summarize risk factors.Results The frequency of syncope in HUTT positive group was 2.3 ± 1.1,significantly higher than that in HUTT negative group (0.7 ±0.2),chest tightness and blurred vision ratios were significandy higher than those in HUTT negative group (84/186,48/186 vs.34/154,23/154).Single factor analysis showed,older than 12 years old,female,blurred vision,with history and genetic history of syncope,numerous of syncope,chest tightness,fatigue were related factors as positive results for HUTT.Multivariate Logistic regression analysis showed,older than 12 years old,female,with history and genetic history of syncope were independent risk factors of positive HUTF.β was 0.744,1.126,1.312,0.514 respectively,95％ CI was 1.132-5.968,1.985-5.040,1.366-9.677,1.683-6.532 respectively.Conclusion Age,gender,family history,history of syncope have important significance to predict HUTT results.
ABSTRACT
Objective: To evaluate the effect of nutritional support with low carbohydrate formula (Pulmocare, Abbott, America) in patients with pulmenary disease and respiratory failure. Methods: 60 patients were randomly divided into control group and study group. The study group was given Pulmocare and the control group was given Ensure (standard enteral nutrition,Abbott, America). The lipidemia, serum protein, PaCO 2 ,PaO 2 ,VO 2 ,VCO 2 and RQ were measured before and after therapy. Results: The patients' nutritional status of the two groups was improved significantly. The index of artery blood gas analysis was significantly improved( P