Portal Decompression Using the Inferior Mesenteric Vein

We report five patients with variceal hemorrhage, in three cases secondary to diffuse thrombosis of the portal, superior mesenteric and splenic veins. Mesenteric angiography demonstrated patency of the inferior mesenteric vein (IMV) in each, and successful portal decompression by anastomosis of the IMV to the left renal vein (n=4) or the inferior vena cava (n=1) was accomplished. Bleeding was permanently controlled: four patients have survived from one to eight years post-operatively. Because shunt procedures utilizing the IMV are technically straightforward, subtotally decompress the portal system and avoid the right upper quadrant, they may be advantageous in certain clinical settings.     

How to Reconstruct Middle Hepatic Vein Branches With Explanted Portal Vein and Inferior Mesenteric Vein Graft: A Case Report

Objective

The middle hepatic vein reconstruction is one of the crucial parts in adult living donor liver transplantation. Numerous techniques had been reported by using cadaveric iliac vessel or synthetic graft. The limitations of reported techniques are availability of the vessel and complication of synthetic graft. We report the technique of using explanted portal vein and inferior mesenteric vein graft in sequential fashion.

Successful Use of the Inferior Mesenteric Vein for Renal Transplantation

For renal transplantation, the standard venous drainage of the allograft is via the iliac vein. In unusual circumstances, such as thrombosis or agenesis of the iliac veins and the inferior vena cava, portal venous drainage may be a suitable option. We report a case in which the inferior mesenteric vein was used for venous drainage of a cadaveric renal allograft.     

下肢静脉交通支腔镜下离断术(附57例报告)

目的 探讨小腿深筋膜下静脉交通支腔镜下离断术的治疗效果。方法 回顾性分析57例经静脉造影或彩色多普勒检查确诊为原发性下肢静脉瓣膜功能不全合并静脉交通支功能不全患者，在腔镜下行下肢深、浅静脉交通支结扎术的治疗情况。结果 术后小腿内侧中下段局部肿胀7例，多在一周内自行消失，切口感染及皮肤灼伤各2例，经治疗后治愈。所有病例浅静脉曲张消失，皮肤色素沉着显著减退，溃疡2～3周愈合。结论 腔镜下行静脉交通支结扎为彻底治疗静脉交通支功能不全提供了一个良好的治疗手段。     

彩色超声引导下腔静脉滤器置入术30例临床分析

目的介绍超声引导下腔静脉滤器置入新方法及其对深静脉血栓形成后肺栓塞的预防作用。方法 2 0 0 2年 5月至 2 0 0 3年 7月对 30例下肢深静脉血栓形成 (其中 4例入院时出现肺栓塞 )患者在彩色超声引导下实施下腔静脉滤器置入术 ,其中 15例在滤器置入术后立即实施下肢深静脉取栓术 ,另外 15例行保守治疗。结果本组 30例均获成功 ,经 1～ 14个月平均 6个月的随访 ,除 1例出现滤器闭塞外 ,余无任何并发症及肺栓塞的发生 ,曾出现肺栓塞者滤器置入后未再发生肺栓塞。结论彩色超声引导下腔静脉滤器置入术可有效地预防深静脉血栓形成后肺栓塞的发生     

阴茎背深静脉切除术后长期随访分析

目的 :分析应用阴茎背深静脉结扎加切除术治疗背深静脉漏致勃起功能障碍 (ED)者术后 5年疗效。　方法 :对 16例经背深静脉结扎加切除治疗的ED病人 ,术后 5年内的勃起情况作连续观察和记录。　结果 :8例病人在术后 18个月起陆续出现勃起功能减退 ,在 2 1～ 30个月时出现完全不能勃起 ,经用药物治疗 6例改善 ,2例无效 ;7例勃起功能正常 ;1例于术后 2 4个月失随访。　结论 :对明确诊断为单纯背深静脉漏引起ED者 ,作阴茎背深静脉结扎加切除治疗不失为一种简单、有效的治疗方法     

Optimal Management of the Splenic Vein at the Time of Venous Resection for Pancreatic Cancer: Importance of the Inferior Mesenteric Vein

Background

Resection of the superior mesenteric vein (SMV)-portal vein (PV)-splenic vein (SV) confluence during pancreatectomy for pancreatic cancer requires management of the SV.

Discussion

Simple SV ligation can result in sinistral portal hypertension if the inferior mesenteric vein (IMV) enters the confluence and is thereby resected, or if the IMV is insufficient to drain the SV. We describe herein three patients whose clinical course confirms the importance of the IMV decompressing the SV to avoid sinistral hypertension.     

Hand Gangrene Following Unsuccessful Cannulation of the Internal Jugular Vein: a Case Report and Literature Review

Hand gangrene following vascular cannula placement is uncommon and is usually the result of thrombotic occlusion of an artery. We describe a case of hand gangrene resulting in wrist disarticulation, following multiple unsuccessful attempts at internal jugular vein cannulation in a critically ill patient.     

Comparison of Clinical and Physiological Efficacies of Different Intermittent Sequential Pneumatic Compression Devices in Preventing Deep Vein Thrombosis: A Prospective Randomized Study

Background

There are few comparative studies about the optimal method of pneumatic compression to prevent deep vein thrombosis (DVT). The aim of this prospective randomized study was to compare venous hemodynamic changes and their clinical influences between two graded sequential compression groups (an alternate sequential compression device [ASCD] vs. a simultaneous sequential compression device [SSCD]).

Methods

In total, 34 patients (68 limbs) undergoing knee and spine operations were prospectively randomized into two device groups (ASCD vs. SSCD groups). Duplex ultrasonography examinations were performed on the 4th and 7th postoperative days for the detection of DVT and the evaluation of venous hemodynamics. Continuous data for the two groups were analyzed using a two-tailed, unpaired t-test. Relative frequencies of unpaired samples were compared using Fisher exact test. Mixed effects models that might be viewed as ANCOVA models were also considered.

Results

DVT developed in 7 patients (20.6%), all of whom were asymptomatic for isolated calf DVTs. Two of these patients were from the ASCD group (11.8%) and the other five were from the SSCD group (29.4%), but there was no significant difference (p = 0.331). Baseline peak velocity, mean velocity, peak volume flow, and total volume flow were enhanced significantly in both device groups (p < 0.001). However, the degrees of flow and velocity enhancement did not differ significantly between the groups. The accumulated expelled volumes for an hour were in favor of the ASCD group.

Conclusions

Both graded sequential compression devices showed similar results both in clinical and physiological efficacies. Further studies are required to investigate the optimal intermittent pneumatic compression method for enhanced hemodynamic efficacy and better thromboprophylaxis.     

Aneurysm of External Jugular Vein Mimicking Hemangioma of Neck

Venous aneurysms are one of the rare causes of neck swellings. Among neck veins, external jugular vein aneurysms are uncommon. We present a case of a woman who presented with a nontender compressible swelling in the left lower neck region, which initially thought to be hemangioma, was later found to be external jugular vein aneurysm on Doppler ultrasound and CT angiography.     

Bilateral Lower Limb Edema Caused by Compression of the Retrohepatic Inferior Vena Cava by a Giant Hepatic Hemangioma

Hemangiomas are the most common benign primary tumors of the liver and their prevalence ranges from 0.4% to 20%. Approximately 85% of hemangiomas are clinically asymptomatic and are incidentally detected in imaging studies performed for other causes. In a very small minority of patients, nausea, vomiting, abdominal pain, distension, palpable mass, obstructive jaundice, bleeding, and signs and symptoms of Budd-Chiari syndrome may develop due to compression of bile duct, hepatic vein, portal vein, and adjacent organs. Occasionally, external compression of inferior vena cava may lead to edema and/or indirect symptoms such as deep vein thrombosis of the lower limbs. In this report, we present a case of giant hepatic hemangioma that completely filled the right lobe of the liver. The patient presented with bilateral lower limb edema and pain. A computed tomography scan detected a 9 × 11 × 12 cm mass indicative of a hemangioma in the right lobe of the liver that compressed the inferior vena cava. The patient refused treatment initially but returned 6 months later presenting with the same symptoms. At that time, the mass had increased in size and a hepatectomy was performed, preserving the middle hepatic vein. By postoperative month 13, the swelling in the lower extremities had decreased significantly and the inferior vena cava appeared normal.     

Aegisy型可回收性下腔静脉滤器的动物实验研究

目的探讨Aegisy型下腔静脉滤器（inferior vena cava filters,IVCF）放置于成年羊的下腔静脉后不同时点内滤器附着处静脉内膜增生情况,评估其临床应用的安全性及可回收时间。方法18只成年羊（体重23～51kg,平均39．6kg）随机分为A、B组,每组9只羊,每只羊置入1枚IVCF,按滤器留置时间分为2、3、4周组,每组3只。观察期满后造影观察滤器有无移位及血栓形成,A组滤器回收,B组为观察滤器附着处静脉内膜的增生情况而不回收滤器。所有羊无痛处死,取出置入滤器处下腔静脉段,行病理检查,评估滤器置入处下腔静脉内膜增生和损伤情况。结果18只羊成功置入滤器,滤器无移位及血栓形成。A组中2周组滤器均成功回收,3周组1只滤器回收成功,2只滤器未能回收,4周组滤器均未能回收。2组滤器未成功回收的病理结果显示：2周组新生内膜开始轻度增生,3周组新生内膜中度增生,4周组滤器周围有袖套样新生内膜显著增生。结论Aegisy滤器在置入羊体内后2周时滤器支撑丝和倒刺部位轻度内膜增生,可安全回收,对于Aegisy滤器在延长回收时间窗后能否安全的回收仍需要进行大量研究并准确评估。