Comparison Of The Effects Of Three Preoperative Catheterization Timings On Elective Surgery Patients

Objective:To explore the optimal preoperative catheterization timing which has the least effects on elective surgery patients through comparing the most three common preoperative catheterization timings and to provide guidance for clinical practice.Methods:90 patients were randomly sampled who was applied with inclusion and exclusion criteria and was hospitalized in Shanxi Provincial Fengyang Hospital orthopedic and gynecologic departments during April,2007 to December,2007,then,these subjects were randomly assigned to three groups,30 patients in each group:routine catheterization group (groupâ… ),catheterization after premedication for 15 minutes (groupâ…¡),catheterization after anesthesia( groupâ…¢). Physiological parameters of subjects(including systolic pressure,SBP;diastolic pressure,DBP;heart rate,HR) were monitored pre-operatively,during-operatively and post-operatively;catheter-related bladder discomfort was evaluated at 0h,1h,2h and 6h after operation;10ml urine was collected respectively before catheterization ,during catheterization and after catheterization for 15 minutes to observe the positive ratio of non-renal erythrocyte. Data were analyzed using by Statiscal Package for Social Science(SPSS)15.0 and Statistical Analysis System(SAS)9.1.3.Results:1. The influence on SBP of the three preoperative catheterization timings:there was difference among three groups(P<0.05),the trend at the different measurement time in each group had statistical significance(P<0.05),and SBP was least stable in groupâ… .Comparison in each group:SBP of during-operation compared with pre-operation and post-operation was higher(P=.000,P=.014)in groupâ… . There was no difference in groupâ…¡andâ…¢respectively.2. The influence on DBP of the three preoperative catheterization timings:there was no difference among three groups(P>0.05),the trend at the different measurement time in each group had statistical significance(P<0.05).Comparison in each group:DBP of pre-operation compared with during -operation and post-operation was lower (P=.020,P=.044)in groupâ… . There was no difference in groupâ…¡andâ…¢respectively(P>0.05). 3. The influence on HR of the three preoperative catheterization timings:there was no difference among three groups(P>0.05),the trend at the different measurement time in each group had statistical significanc(eP<0.05).Comparison in each group: HR of pre-operation compared with during -operation and post-operation was lower(P=.001,P=.011)in groupâ… . There was no difference in groupâ…¡andâ…¢respectively(P>0.05).4. The comparison of catheter-related bladder discomfort of the three preoperative catheterization timings:there was statistical significance between groupâ…¢and groupâ… ,â…¡(P<0.05),the incidence of catheter-related bladder discomfort was higher in groupâ…¢than that in groupâ… a ndâ…¡. There was no difference in groupâ… andâ…¡(P>0.05).5. The comparison of the positive ratio of non-renal erythrocyte of the three preoperative catheterization timings:there was statistical significance between groupâ…¡and groupâ… ,â…¢(P<0.05), the positive ratio of non-renal erythrocyte in groupâ…¡w as lower than that in groupâ… andâ…¢. There was no difference in groupâ… andâ…¢(P>0.05).Conclusions:The conclusion can be drawn from comparing the preoperative catheterization timings:groupâ…¡(group of catheterization after premedication for 15 minutes) had the least effect on elective surgery patients in which measurement data was more stable and other data was less influence on patients.