Balloon Dilatation of the Pulmonary Valve in a Patient with Pulmonary Atresia and Intact Ventricular Septum Using a Commercially Available Radiofrequency Catheter

Using a commercially available 5F deflectable radiofrequency catheter, we have succeeded in percutaneous valvotomy of an imperforate pulmonary valve and consecutive balloon dilatation in a baby with pulmonary atresia and intact ventricular septum. After the procedure, right ventricular systolic pressure fell from 125 mmHg to 65 mmHg, and right ventriculography demonstrated anterograde blood flow into the pulmonary arteries. There were no major complications. Doppler echocardiography at 1 year after the procedure demonstrated a pressure gradient across the pulmonary valve of 20 mmHg with mild pulmonary and tricuspid regurgitations.     

Glue embolization of a ruptured celiac trunk pseudoaneurysm via the gastroduodenal artery

Percutaneous transcatheter embolization of splanchnic artery aneurysms is a minimally invasive and alternative therapy to conventional surgical intervention. Due to a high-grade stenosis at the origin of the celiac trunk, a retrograde approach to the celiac trunk pseudoaneurysm via the gastroduodenal artery was necessary. To prevent undesirable embolization into the peripheral left gastric artery initial occlusion of the central portion of the left gastric artery was performed with microcoils using a Tracker catheter. Complete occlusion of the celiac trunk itself and the short adjacent segments of the celiac artery was achieved by using a mixture of N-butyl-2-cyanoacrylate and ethiodized oil as the embolizing agent. Received: 22 June 1999; Revised: 7 September 1999; Accepted: 1 October 1999     

A catheter technique in ophthalmic regional anaesthesia. Clinical investigations

BACKGROUND: Usually general anaesthesia is chosen if ophthalmic surgery of longer duration is expected. Our goal was to introduce a flexible catheter preoperatively into the extra- or intraconal space and to provide sufficient anaesthesia by continuous administration of a local anaesthetic via the catheter. METHODS: The continuous anaesthetic technique was applied in 28 patients undergoing vitreoretinal surgery. An indwelling catheter was introduced in 20 patients into the intraconal and in 8 patients into the extraconal space. In 6 patients, the position of the catheter was controlled by ultrasound examination prior to the injection of the local anaesthetic agent. RESULTS: For all patients adequate anaesthesia could be achieved and maintained with continuous retrobulbar administration (CRA) of a local anaesthetic by catheter. There were two patients who experienced moderate pain intraoperatively during continuous peribulbar administration (CPA). No complications occurred with the placement of the catheters. The catheter did not disturb the surgeon or the process of the ophthalmic surgery. CONCLUSIONS: Continuous administration of a local anaesthetic agent via an indwelling catheter into the intraconal space allowed ophthalmic anaesthesia without time restriction. Thus, CRA is a good alternative to general anaesthesia for patients undergoing long-lasting ophthalmic surgery.     

16层螺旋CT在心房颤动射频消融术前的应用测量

目的研究心房颤动导管射频消融肺静脉电隔离术前左心房、肺静脉和食管16层螺旋CT成像技术及临床意义。资料与方法40例心房颤动患者在术前1-3天行多层螺旋CT（MSCT）检查,采用容积再现（VR）、多平面重组（MPR）及最大密度投影（MIP）等方法重组并测量各肺静脉口直径、左心房至肺静脉第一分支的距离、食管与左心房后壁接触的范围、食管壁厚度、左心房后壁厚度以及左心房与食管间的脂肪垫厚度。结果共显示肺静脉165支,右上肺静脉口前后径和上下径分别为（16.3±3.1）mm和（19.0±2.6）mm;右下肺静脉分别为（16.4±3.6）mm和（18.0±3.5）mm;左上肺静脉分别为（14.4±3.0）mm和（18.4±3.6）mm;左下肺静脉分别为（12.6±2.8）mm和（17.0±2.8）mm。食管与左心房后壁接触的平均长度为（56±12）mm,在双上、下肺静脉水平与左心房后壁接触的食管平均宽度分别为（10±5）mm和（14±5）mm。60%的食管位于左心房后壁中线偏左,大致与左上、下肺静脉口平行;40%的食管沿左上肺静脉向右下肺静脉斜行走行。左心房后壁和食管前壁的平均厚度分别为（2.2±0.8）mm和（3.5±1.6）mm。95%的左心房与食管间可见脂肪垫,其平均厚度为（0.8±0.2）mm。结论应用MSCT造影增强扫描可清楚显示各肺静脉口直径、分支特征、走行以及有无发育畸形,同时还能评价食管与左心房的关系,为心房颤动导管射频消融术的顺利实施提供重要解剖依据。     

双球囊导管用于瘢痕子宫足月引产的临床观察

目的 探讨瘢痕子宫使用双球囊导管促宫颈成熟及引产后阴道分娩的安全性和有效性.方法 以2016年1月—2018年7月本院收治有阴道分娩条件和意愿的59例宫颈未成熟的足月瘢痕子宫作为研究组,以同期分娩的67例足月非瘢痕子宫宫颈未成熟的为对照组,两组均使用双球囊导管促宫颈成熟及引产,比较两组的母婴结局.结果 研究组孕产妇的年...     

留置导尿管在泪囊鼻腔吻合术中的应用

目的探讨吻合口留置导尿管在泪囊鼻腔吻合术中的应用及远期疗效。方法对415例(432只眼)慢性泪囊炎在行泪囊鼻腔吻合术中,吻合口处留置导尿管3周。其中284例(297只眼)术后随访3个月～8年(平均随访2.6年)。结果随访3月以内者全部治愈。297只眼远期随访疗效:治愈268只眼(90.24%),好转25只眼(8.4%),无效4只眼(1.35%),总有效率98.65%。结论在泪囊鼻腔吻合术中留置导尿管是一种安全、简单的方法,可有效的防止吻合口再阻塞,提高手术成功率。     

外伤性血气胸中心静脉导管置管引流术的护理

目的 探讨中心静脉导管胸腔闭式引流术在外伤性血气胸患者的临床疗效及护理体会.方法 对62例外伤性血气胸的患者采用中心静脉导管胸腔闭式引流法治疗血气胸,护理并观察患者疗效及并发症.结果 本组病例患者疼痛少,引流口创伤小、愈合佳,血气胸吸收满意.结论 中心静脉导管胸腔闭式引流术对外伤性血气胸的治疗有积极的作用,可减轻患者的痛苦,利于血气胸吸收,缩短住院时间,值得临床推广.     

特发性室性心动过速的导管射频消融治疗效果

目的 评价导管射频消融(radiofrequency catheter ablation,RFCA)对特发性室速(idiopathic ventricular tachy-cardia,IVT)的治疗效果以及心电图对消融靶点的定位价值.方法 对126例特发性室速患者的电生理资料及RFCA治疗效果进行回顾性分析.多数患者采用激动顺序标测,射频能量采用温控法(60～65℃).结果 126例患者中右室流出道(right ventricular outflow tract,RVOT)IVT 62例、左后间隔IVT 43例,其他部位IVT 21例.本组RFCA的总成功率为87.3%,RVOT-IVT和左后间隔IVT的成功率显著高于其他部位IVT(96.8%和90.7% vs 52.4%,P<0.05).本组8例患者存在发作性晕厥(发作的R-R间期230～260 ms),其中4例合并房室结双径路、2例合并隐匿性房室旁道、2例合并多形性室速.随访6个月至10年,复发9例(复发率为8.2%),均再次RFCA成功.合并心动过速性心肌病者6例,术后3个月心脏大小与心功能均恢复正常.结论 采用激动顺序标测法RFCA治疗IVT成功率高;室速发作时体表心电图对绝大多数室速起源具有定位价值;部分室速可能合并房室旁道或房室结双径路.     

早期拔除尿管对腹腔镜下结肠癌术后镇痛患者的影响

目的 探讨腹腔镜下结肠癌术后镇痛期间拔除尿管对患者尿潴留及相关并发症的影响.方法 分析本院2014年1月至2015年12月腹腔镜下结肠癌术后留置镇痛泵的患者46例,其中实验组23例(留置镇痛泵期内拔除尿管),对照组23例(停用镇痛泵后拔除尿管).两组术后尿潴留率、尿路感染率、肺部感染率、伤口感染率及满意率等指标比较.结果 两组患者的尿潴留率(8.7％比4.3％)、肺部感染率(4.3％比8.7％)、伤口感染率(4.3％比13.0％),差异均无统计学意义(均P＞0.05).两组患者均未出现导尿管相关性尿路感染.实验组满意率78.3％高于对照组47.8％,差异有统计学意义(P＜0.05).结论 腹腔镜下结肠癌术后留置镇痛泵的患者早期拔除尿管是安全可行的,且能减轻留置尿管引起的不适.