Abstract
Objective To study the influence of general anesthesia on the bladder detrusor and the characteristics of urodynamic changes.Methods From November 2010 to October 2011,42 patients underwent abdominal surgery with general anesthesia (28 males and 14 females,mean age of 38 years,laparoscopic operation in 35 cases,traditional operation in 7 cases) were taken urodynamic analysis before,during and after anesthesia.The urodynamic parameters were recorded,and statistically analyzed the differences before and after anesthesia.Results All 42 patients were successfully completed the test.During anesthesia we filled the bladder to the measured maximum bladder capacity just before anesthesia,and no estraordinary findings were found during this period.According to the results when the patients awake,we divided the patients into two groups:normal compliance group in 27 cases and low compliance group in 15 cases.We statistically analyzed the data respectively.FD,SD,MCC in normal compliance group were (118.2±16.8) ml,(204.6 ±27.4) ml,(395.8±50.1) ml,and (160.9 ±21.6) ml,(244.8 ±44.0) ml,(394.7 ± 56.9) ml respectively before and after the anesthesia.There were significant differences in FD,SD (P ＜0.01),and no significant difference in MCC (P ＞0.05).FD,SD,MCC in low compliance group were (118.9 ±15.1) ml,(208.8 ±22.9) ml,(403.9 ±48.1) ml,and (189.1 ±35.9) ml,(123.0 ± 16.9) ml,(275.4 ± 33.7) ml respectively.There were significant differences in FD,SD,MCC (P ＜0.01).We retested the low compliance group one hour after the anesthesia,and found its compliance returned normal.Conclusions After a general anesthesia the bladder detrusor was stable,but the sensory function is diminished.Some patients showed a transient phenomenon of low compliance.All patients were capable of urinate autonomously with detrusor contraction.In normal circumstances we may catheterize the patients after the induction of anesthesia,and timely removal it postoperatively. Key words: General anesthesia ; Detrusor ; Urodynamic ; Characteristic
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