简介:摘要目的探讨乳突根治术后不干耳的原因,做好预防措施。方法选取2014年5月到2015年5月期间,我院收治的298例乳突根治术后不干耳患者作为研究对象。对所有患者的临床资料进行分析。结果298例乳突根治术后不干耳患者,有215例为胆脂瘤残留,占72.1%,30例患者咽鼓管感染,占10%。25例外耳道狭窄,占8.4%。28例换药不当,占9.5%。再次实施手术,患者后期均达到干耳,干耳率为100%。结论乳突根治术后不干耳的原因为病灶清除不彻底、外耳道过于狭窄、咽鼓管感染、换药不当、残留异物等。为了避免术后产生不干耳,要求术者严格按照规则操作,彻底清除病灶,保持术腔引流通畅,防止咽鼓管感染,为患者合理换药,减少术后不干耳的几率。
简介:WeinvestigatethenonlinearSchrdingerequationiut+△u+|u|p-1u=0with1+4/N
||Q||(1-sc)/sc|▽Q||2,theneitheru(t)blowsupinfiniteforwardtimeoru(t)existsgloballyforpositivetimeandthereexistsatimesequencetn→+∞suchthat||▽u(tn)||2→+∞.HereQisthegroundstatesolutionof—(1—sc)Q+△Q+|Q|p-1Q=0.Asimilarresultholdsfornegativetime.Thisextendtheresultofthe3DcubicSchr(o|¨)dingerequationobtainedbyHolmertothegeneralmass-supercriticalandenergy-subcriticalcase.
简介:Ⅰ.IntroductionInrecentdecades,withtherampancyoftransnationalorganizedcrimes,especiallytheexpansionofterrorism,internationalpolicecooperationhasbeenattachedgreatimportancetobyinternationalorganizationsandvariouscountriesandbecomeanatouttomaintainnationalsecurityandcoreinterests.