ABSTRACT
Objective To evaluate the accuracy of the middle finger length in predicting the depth of placement of oral endotracheal tube (ETT) in patients of different ages.Methods One hundred and twenty patients of both sexes,of American Society of Anesthesiologists physical status Ⅰ-Ⅲ,undergoing elective surgery under general anesthesia requiring insertion of ETT,were divided into adult (18-84 yr) group (n =98) and children (5-14 yr) group (n =22) according to age.After anesthesia induction,the length of trachea was measured through mouth with a fiberoptic bronchoscope,and the patients were endotracheally intubated with the depth of three times the length of the left middle finger.The length from ETT tip to carina was measured after positioning.The optimal depth of placement of ETT was calculated,and the rate of appropriate placement depth of ETT was calculated.Linear correlation of three times the length of the middle finger with the optimal placement depth of ETT was analyzed.Results The rate of appropriate placement depth of ETT was 88％,the excessively deep placement of ETT was 7％,and the excessively shallow placement of ETT was 5％ in adult group.The rate of appropriate placement depth of ETT was 90％,the excessively deep placement of ETT was 10％,and no excessively shallow placement of ETT was found in children group.The tip and cuff of ETT were all in the main trachea in the two groups.The optimal placement depth of ETT was positively correlated with three times the length of the left middle finger (r =0.774,P＜0.01) in adult group and (r=0.911,P＜0.01) in children group.Conclusion Three times the length of the left middle finger can predict the appropriate placement depth of oral ETT in patients of 18-84 yr and 5-14 yr.
ABSTRACT
Objective To investigate anesthesia efficacy and safety between two drugs joint propofol intrave-nous anesthesia for colonoscopy,to provide reference for clinical treatment.Methods 120 routine colonoscopy patients were selected,they were randomly divided into control group and observation group,60 cases in each group. Patients of the control group were given ketamine and propofol before examination.Patients in the observation group were given fentanyl and propofol for intravenous anesthesia before the examination.The arterial pressure MAP,heart rate,HR,pulse oximetry SpO2 ,recovery time,time away from the hospital,anesthetic effects and adverse reactions were compared between the two groups.Results Anesthesia excellent rate in the observation group was 86.67%,that was 85.00% in the control group,the difference was not significant (χ2 =0.984,P =0.114).In the observation group,the recovery time and time away from the hospital were (7.44 ±1.24)min,(19.11 ±2.67)min,which were significantly shorter than those in the control group,the differences were statistically significant (t =5.847,P =0.004;t =6.922,P =0.001).The MAP,SpO2,HR at different time points showed statistically significant differences between the two groups(P >0.05).The incidence rate of adverse reactions in the observation group was 21.67%, that in the control group was 36.67%,the difference was not statistically significant (χ2 =5.665,P =0.007). Conclusion Fentanyl and propofol for intravenous anesthesia in colonoscopy has good anesthetic effect and good safety,which is worthy of clinical application.