Triple catheter aortoiliac angioplasty in a patient with a horseshoe kidney: Technical note

A method is described for protecting a nonstenotic anomalous artery to the left-lower pole of a horseshoe kidney that originated from a stenotic left common iliac artery. Using a triple catheter technique, injury to this anomalous renal artery was prevented while using “kissing balloons” to dilate bilateral proximal common iliac artery stenoses.     

经皮球囊血管成形术和经皮支架植入术治疗透析通路中心静脉狭窄的临床效果比较

目的：观察透析通路中心静脉狭窄（CVS）经皮球囊血管成形术（PTA）和经皮支架植入术（PTS）治疗的近中期疗效。 方法：选取2014年10月—2016年10月收治的发生CVS的血液透析患者40例,按治疗方式的不同分为PTA治疗组26例和PTA+PTS治疗组14例。观察两组患者术后疗效及通路管径变化情况;随访术后1、3、6个月透析通路的开放情况及开放时间。 结果：术后相关症状均在1周内改善,治疗后通路直径较治疗前均增宽;PTA治疗组的初级开放时间为（5.17±1.54）个月,高于PTA+PTS治疗组的初级开放时间（3.57±1.71）个月;PTA+PTS治疗组的腔内干预次数为（1.93±0.47）次,高于PTA治疗组的（1.35±0.56）次,差异均有统计学意义。PTA治疗组1、3、6个月的初级开放率分别为96.2%、80.7%、69.2%,辅助初级开放率分别为100%、92.3%、92.3%;PTA+PTS治疗组1、3、6个月的初级开放率分别为92.9%、64.3%、14.3%,辅助初级开放率分别为100%、100%、85.7%。两组的初级开放率和辅助初级开放率差异无统计学意义。 结论：透析通路CVS的治疗首选单纯PTA,当出现PTA抵抗或频繁复发时,可以考虑植入支架。     

Segmentally enclosed thrombolysis in percutaneous transluminal angioplasty for femoropopliteal occlusions: A report from a pilot study

Segmentally enclosed thrombolysis (SET) was performed immediately following 34 percutaneous transluminal angioplasties (PTAs) for femoropopliteal occlusions. The dilated segment was sealed off with a double balloon catheter, and recombinant tissue plasminogen activator (rt-PA) I mg/ml and heparin 200 IU/ml were injected between the balloons. The catheter was removed after 30 min and heparin treatment was continued for 24 h. Alpha-2-antiplasmin was initially reduced by 13% and normalized 2 h after SET, indicating that only small amounts of free palsmin were liberated during thrombolysis. No clinically relevant changes in plasma fibrinogen occurred. Two puncture site hemorrhages did not coincide with the coagulopathy induced by SET. One-year patency was 80%. Early rethrombosis occurred in 9% versus 41% in our previous series on standard PTA for femoropopliteal occlusions (p<0.001). Therefore, SET is considered beneficial in reducing the incidence of early rethrombosis.     

Percutaneous transluminal angioplasty and enclosed thrombolysis versus percutaneous transluminal angioplasty in the treatment of femoropopliteal occlusions: Results of a prospective randomized trial

Purpose: To determine whether percutaneous transluminal angioplasty (PTA) and enclosed thrombolysis (ET) is superior to PTA alone in the treatment of femoropopliteal occlusions. Methods: Twenty-five patients with 5–15-cm-long occlusions in the femoropopliteal segments, with otherwise normal run-in arteries and at least one normal tibioperoneal artery to the foot, were randomized to ET/PTA or PTA alone. Ankle brachial systolic index (ABI) was measured before the procedure and at 24 hr and 12 months after the procedure, when a duplex scan was also carried out. End points in the study were patency at, or repeat intervention before, 12 months. Results: Procedures were successful in 23 of 25 patients. There was one immediate occlusion of tibioperoneal arteries, and one early reocclusion of a reopened segment in the ET/PTA group. There was one early reocclusion in the PTA group. At 12 months patency was 70% and 69.2% in the ET/PTA and PTA groups respectively. Covariant analysis showed no significant difference in ABI between the two groups at any of the three measurement times. Conclusion: This trial demonstrated no difference between ET/PTA and PTA alone in femoropopliteal occlusions associated with normal proximal arteries and at least one normal tibioperoneal artery.     

Peritoneal calcifications in a patient on continuous ambulatory peritoneal dialysis

Complications in a long-term ambulatory peritoneal dialysis patient are described.     

Catheter lysis and percutaneous transluminal angioplasty below the knee via the popliteal artery in a patient with femoral artery obstruction: Technical note

Acutely occluded lower leg arteries in a patient with a chronically obstructed superficial femoral artery were successfully treated by catheter lysis and dilatation via the popliteal artery.     

Spasms of the hepatic artery following percutaneous transluminal angioplasty and tolazoline administration in a liver transplant patient

Vascular complications after liver transplantation include occlusion or stenosis near the sites of anastomosis in the hepatic artery, portal vein, and vena cava. Balloon angioplasty of these stenoses carries little risk and is a useful procedure for the treatment of these problems. Here we describe the case of a liver transplant patient who underwent balloon angioplasty for stenosis of the hepatic artery and who developed spasms of the hepatic artery which were aggravated following intraarterial administration of Tolazoline. Received: 0/00/000 Accepted: 0/00/00     

Failure of bone scanning to detect fractures in a woman on chronic steroid therapy

Osteopenic bones in patients on chronic steroid therapy are often difficult to assess for occult fractures. Such patients are also at greater risk for fractures. Technetium 99m bone scan is currently thought to represent the most sensitive method of diagnosing these lesions. We present a case of failure of diagnosis of a subtle fracture by Tc-99m bone scan and speculate on the role of steroid therapy in the mechanism of this failure.