简介:AIM:Toevaluatetheefficacyofintralesionalradiofrequencyablationinthetreatmentofperiorbitalsyringomas.·METHODS:Wetriedtheintralesionalradiofrequencyablationfor64patientswithperiorbitalsyringomasfrom2007to2011.Theoperationwasperformedunder2.5loupemagnifications.Thehandpiecewasassembledwithaneedleelectrodeandconnectedtotheradiofrequencyablationapparatus.Theelectrodewastheninsertedintothetargetlesionsindermisanddeliveringinjurytothebaseofthesetumors.Resultswereassessedclinicallybycomparingpre-andpost-treatmentphotographsandpatientsatisfactionrates.·RESULTS:Clinicalimprovementincreasedwitheachsubsequenttreatmentsession.Thepercentofpatientswhoseclinicimprovementgradewere≥3aftereachsessionwasrespectively71.9%(Session1),83.3%(Session2),and100%(Session3).Thestatisticalresultsindicatedtheconcordanceoftheclinicalassessmentandthesatisfactionlevelofpatients(kappa=0.78ofthesession1;kappa=0.82ofthesession2).Themajorityofpatientshadgoodorexcellentcosmeticresults.Postoperatively,therewerenopermanentsideeffectsorrecurrences.·CONCLUSION:Asanewtechniqueofminimallyinvasion,theintralesionalradiofrequencyablationwasfoundtobeaneffective,inexpensive,highlypreciseandsafewayoftreatingperiorbitalsyringomas.
简介:摘要一氧化碳(CO)经呼吸道进入人体后,与血红蛋白结合成碳氧血红蛋白,失去携氧能力。CO与血红蛋白的亲和力较氧与血红蛋白的亲和力大250~300倍,且解离速度为氧和血红蛋白的1/3600,因而可使组织缺氧,使氧离曲线左移,组织缺氧严重,中枢神经首先受累,严重者出现脑水肿,继发脑血管病变、缺氧性脑病及形成CO中毒后遗症或迟发性脑病、心肌损害和各类心律失常。轻度CO中毒患者可出现头痛、头晕、失眠、视物模糊、耳鸣、恶心、呕吐、全身乏力、心动过速、短暂昏厥;中度CO中毒患者除上述症状加重外,口唇、指甲、皮肤黏膜出现樱桃红色,多汗、血压先升高后降低、心率加速、心律失常、烦躁,并可迅速进入昏迷状态。