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At least 343 records · Page 19Linked to original sources

Closure of the greater saphenous vein with endoluminal radiofrequency thermal heating of the vein wall in combination with ambulatory phlebectomy: 50 patients with more than 6-month follow-up.

BACKGROUND: Incompetence of the saphenofemoral junction (SFJ) with reflux into the greater saphenous vein (GSV) is one cause of chronic venous hypertension that may lead to the development of varicose and telangiectatic leg veins. OBJECTIVE: To evaluate with long-term follow-up a novel method for closing the incompetent GSV at its junction with the femoral vein through an endoluminal approach. METHODS: Fifty patient legs with reflux at the SFJ into the GSV were treated with radiofrequency (RF) heating of the vein wall through an endoluminal catheter. Patients were evaluated at 6, 9, 12, and 18-24 months to determine treatment efficacy as well as adverse sequelae. RESULTS: Nine patients could not return for evaluation after 3 months. The remaining 41 patient legs were evaluated. Sixty-eight percent of treated legs achieved complete closure of the SFJ and GSV. Twenty-two percent of legs had an open GSV without reflux. Three patients (four legs) (10%) had an open and refluxing GSV. Three of 41 legs had recurrent varicose veins. Only 1 of 41 legs had recurrent symptoms. Complete treatment took an average of 20 minutes. Adverse sequelae were minimal, with 28 legs showing purpura less than 2 weeks, 5 legs with erythema less than 1 week, and 8 legs with an indurated fibrous cord lasting for up to 6 months posttreatment. CONCLUSION: Endoluminal RF thermal heating of an incompetent GSV has been shown to be easily accomplished and efficacious throughout the 24-month-follow-up period.

Adult↗

Percutaneous catheterisation of the axillary vein and proximal basilic vein.

Percutaneous catheterisation techniques for the axillary vein and proximal portion of the basilic vein based on venepuncture on a visible or palpable vein are described. Results are presented on 73 catheterisation attempts on axillary veins and 68 on proximal basilic veins, in which the failure rate was 4-9% and 6-9% respectively. The advantages of the techniques include simplicity and the absence of acute life-threatening complications. The incidence of phlebitis from indwelling catheters maintained for an average of 5 days (range 1-28 days) is less than 2%. Several aspects of the techniques including background anatomy and anticipated risks are discussed.

Adolescent↗

Reconstruction of the jugular vein in horses with post thrombophlebitis stenosis using saphenous vein graft.

A surgical technique is described in which a saphenous vein graft is used to reconstruct the jugular vein in horses with facial oedema due to post thrombophlebitic stenosis of the jugular vein. The saphenous vein was harvested from the contralateral limb and implanted in the occluded vein by 2 side-to-end anastomoses. Intra- and post operatively anticoagulative medication was administered. In 2 out of 3 patients the reconstruction resulted in a permanent patent graft and resolution of the facial oedema. In one patient the graft thrombosed.

Ampicillin↗

Comparative study of vitrectomy with and without vein decompression for branch retinal vein occlusion: a pilot study.

PURPOSE: To report the clinical outcomes in patients undergoing pars plana vitrectomy with and without vein decompression for treatment of branch retinal vein occlusion (BRVO). METHODS: Thirty-five eyes with macular edema and visual acuity worse than 20/100 secondary to BRVO were prospectively evaluated. Vitrectomy with posterior hyaloid removal and vein decompression at the arteriovenous crossing was performed on 15 eyes (Group 1); consecutively, the same technique without vein decompression was performed on 20 eyes (Group 2). Primary outcome was visual acuity and secondary outcomes were resolution of macular edema and development of neovascularization. RESULTS: No differences were found between groups in either patient age (p = 0.566) or preoperative visual acuity (p = 0.505). No differences were found in visual acuity at 3 (p = 0.651), 6 (p = 0.697), 9 (p = 0.763), 12 (p = 0.881), or 18 (p = 0.748) months. Mean time for macular edema resolution and visual acuity improvement was 9 months in both groups, with a mean improvement of 3.5 +/- 2.35 lines in Group 1 and 3.2 +/- 2.97 lines in Group 2. No eyes in either group developed new vessels. CONCLUSIONS: Results suggest that vitrectomy with posterior hyaloid removal without vein decompression can resolve macular edema, improve vision, and prevent development of new vessels in BRVO.

Aged↗

Transpectoral ultrasound-guided catheterization of the axillary vein: an alternative to standard catheterization of the subclavian vein.

Subclavian vein catheterization is associated with failure and complications because of injury to the nearby lung and subclavian artery. Its position, sandwiched between the clavicle and the first rib, makes sonographic imaging difficult. The medially pointed sonography probe makes it difficult to align the needle as well as image the entire needle. The axillary vein lies outside of the thoracic cage and can be easily imaged in its longitudinal view along with the entire needle, guidewire, dilator, and catheter in real-time. All described techniques of venous access using sonography have used transverse images of veins, and the needle is not completely visualized. Five cases of axillary vein catheterization using longitudinal section images of the vein, and following the needle, guidewire, and line with real-time sonography, are described. The use of longer puncture needles and introducer sheaths is suggested. A larger study is required to assess the potential of this technique.

Acquired Immunodeficiency Syndrome↗

Reconstruction of the vein of Labbé by using a short saphenous vein bypass graft. Technical note.

Protection of the vein of Labbé is a significant concern during surgery that involves retraction of the temporal lobe. A cranial base surgical approach, especially one via the presigmoid-petrosal route, carries considerable risk to this venous complex. A case is presented in which a large dominant vein of Labbé was injured during resection of a petroclival meningioma. This vein drained all the sylvian venous circulation as well as the lateral temporal surface; no connection to another venous system was noted. The vein was successfully reconstructed using a short saphenous vein bypass graft. Significant complications could have occurred without this reconstruction. The technique and benefits of this type of reconstruction are discussed.

Anastomosis, Surgical↗

[Default of KIAA0353 gene in varicose great saphenous vein accompanying primary deep vein valve insufficiency].

OBJECTIVE: To screen and identify the genes related to the occurrence and development of varicose great saphenous vein in the patients with primary deep vein valve insufficiency (PDVI). METHODS: mRNA fluorescent differential display (FDD) technique was used to compare the different cDNA fragments originated from differentially expressed mRNAs from the venous tissues of 10 patients with varicose great saphenous vein complicated with PDVI. Ten specimens of normal venous tissue from 10 patients dying from other diseases were used as controls. The differently expressed cDNA fragments were then re-amplified and labeled with DIG to prepare probes for later Northern blotting. Positive fragments confirmed by Northern blotting were cloned into pGEM-T easy vector and sequenced using Sanger's method. Then the sequences were compared with the data in GeneBank by BLASTN software to search for their genetic origin. RESULTS: Altogether 37 differentially expressed cDNA fragments were discovered from the 2 groups, among which 30 were confirmed by Northern blotting. There was a notable 540 bp-long cDNA fragment, which was only presented in the control group, sharing 99% homology with part of the mRNA sequence of human KIAA0353 gene. CONCLUSION: The varicose great saphenous vein of PDVI patients is a process with the involvement of multiple genes and the default of KIAA0353 gene may play a role in the occurrence and development of varicose great saphenous vein in PDVI patients.

Base Sequence↗

[Incompetence of the m. gemellus veins in varicose veins: its incidence and phlebographic study].

The authors report on 466 venographies of the lower limbs performed over the past 2 years on 412 patients affected with varicose veins. Pathologic reflux of the gastrocnemius veins was observed in 15.7% of cases: 9.7% in the group of non-operated patients and 25.3% in the group with recurrent varicose disease. Ascending venography (and eventual popliteal venography) is the ideal diagnostic approach to show gastrocnemius veins incompetence, eventual anatomic variations, and isolated/associated incompetence of the short and/or long saphenous vein territory. Moreover, venography allows the hemodynamic evaluation, and shows reversed flow in the gastrocnemius veins in case of incompetence.

Contrast Media↗

Long-term results of treatments for varicose veins due to greater saphenous vein insufficiency.

AIM: The purpose of this study was to determine the long-term recurrence rates of greater saphenous vein (GSV) insufficiency after treatments for primary varicose veins, and to elucidate risk factors for recurrence. METHODS: This was a multicenter retrospective analysis of 376 limbs of 296 patients treated for primary varicose veins due to GSV insufficiency from January 1996 to December 1997. The recurrence-free rates after stripping surgery, saphenofemoral ligation, and sclerotherapy were estimated. The risk factors for the recurrence of primary varicose veins were estimated by multiple regression analysis. RESULTS: The follow-up period was 3.1+/-1.3 (mean+/-SD) years. The recurrence-free rates at 4 years after stripping, saphenofemoral ligation and sclerotherapy were 80.7%, 64.5%, and 51.3%, respectively. The saphenofemoral ligation group and sclerotherapy group had significantly higher recurrence rates than the stripping group (P=0.002, P<0.001, respectively). There was no difference in recurrence rates between the saphenofemoral ligation group and sclerotherapy group (P=0.074). Logistic regression analysis revealed that being female (P<0.029) and treatment without stripping (P<0.001) increased the recurrence rate. CONCLUSIONS: Stripping surgery may be the treatment of first choice for patients with varicose veins due to GSV insufficiency. Patients who have not received stripping surgery and female patients require closer follow-up.

Aged↗

Internal jugular vein reconstruction using a superficial femoral vein graft.

Numerous methods of venous reconstruction have been described to help prevent the many complications related to bilateral ligation of the internal jugular veins. The authors report a case in which the superficial femoral vein was used as the donor graft for reconstruction of the internal jugular vein in a 61-year-old man who underwent a tonsillar commando procedure for cancer. The advantages of using this donor vein for reconstruction of the internal jugular vein are summarized.

Carcinoma, Squamous Cell↗

Optociliary veins and visual prognosis after central retinal vein occlusion.

The effect of acquired optociliary veins on visual acuity after ischemic central retinal vein occlusion in patients 45 years of age or older was assessed retrospectively. Fundus photographs and medical records of 21 patients, 45 years of age or older, with photographically documented central retinal vein occlusion and at least six-months follow-up were analyzed. Eleven of 21 patients developed acquired optociliary veins. Patients with acquired optociliary veins were more likely to experience stable or improved visual acuity (nine of 11 patients) than were patients without them (four of ten patients) over a mean follow-up period of 30 months (P = .049).

Age Factors↗

[Should the great saphenous vein be stripped in routine surgery for uncomplicated varicose veins?].

Stripping of the great saphenous vein is widely used in the surgical treatment for varicose veins. With the increasing demand of vein material in coronary- and femoro-distal bypass surgery, this routine creates a conflict. A review of the literature reveals the possibility of vein-saving procedures that do not increase the recurrence rates. By utilizing modern diagnostic methods, it is possible to make an exact preoperative diagnosis as to the extent of the varicose disease and thus make an individualized operation, that is just as radical as necessary, but at the same time as vein-preserving as possible.

Humans↗

Inhibition of nisoldipine on bovine mesenteric arteries and veins and on human peripheral veins.

The inhibiting effect of the calcium channel blocker nisoldipine (CAS 63675-72-9, Baymycard, Syscor) on potassium-induced contraction on bovine mesenteric veins and arteries and human peripheral veins was investigated. Nisoldipine inhibited the contraction on bovine mesenteric veins at a significantly lower concentration (1 x 10(-10) mol/l) than nifedipine and glyceryl trinitrate (GTN) (1 x 10(-7) mol/l). When the preparations were preincubated with the drugs, nisoldipine reduced the contraction, measured as area under the curve (AUC), with 47 +/- 8% (mean +/- SEM) and nifedipine with 29 +/- 13% in veins. It was necessary to use an inconsiderably higher concentration of nisoldipine to relax bovine mesenteric arteries contracted by potassium. Preincubation of these arteries with nisoldipine (1 x 10(-7) mol/l) reduced contraction measured as AUC by 46 +/- 10% and preincubation with nifedipine (1 x 10(-7) mol/l) by 77 +/- 3%. Nisoldipine also caused a marked relaxation in human saphenous veins. The introduction of nisoldipine (1 x 10(-8) mol/l) after potassium-induced contraction caused 54 +/- 8% relaxation.

Animals↗

[Portal vein and hepatic vein thrombosis in occult myeloproliferative syndrome. Progression of thrombosis under heparin therapy].

In a 45-year-old woman presenting with subacute liver failure and portal hypertension the diagnostic workup revealed portal vein thrombosis and occlusion of small hepatic veins. An occult myeloproliferative syndrome was assumed. During full-dose heparin therapy the thrombotic process progressed to segmental venous small bowel infarctions, liver failure and death. In-vitro culture of mononuclear blood cells showed spontaneous growth of erythroid precursor cells. Necropsy demonstrated acute hemorrhagic necrosis of the liver, thrombotic material within the portal and mesenteric veins, thrombosis, dilatation, sclerosis, and partial obliteration of small portal vein branches, and obliterative fibrosis and thrombosis of small intrahepatic veins. The bone marrow and spleen findings support the diagnosis of a myeloproliferative disorder.

Fatal Outcome↗

Migration of jugular or subclavian venous catheters into inferior tributaries of the brachiocephalic veins or into the azygos vein, with possible complications.

Six children are reported in whom a central venous catheter from the internal jugular or the subclavian vein migrated to an anomalous position: the left superior intercostal vein in the first two cases, the thymic vein in the third, and the azygos vein in the last three. Resultant complications in five cases were: extravasation of the infusate in the first and third case; local vascular stenosis or complete vascular occlusion in the second and fifth case; and obstruction of the azygos arch due to local thrombosis and possible stenosis, with a likely extravasation of the infusate, in the sixth case. The mediastinal vascular anatomy related to these central venous catheters is reviewed with reference to similar and related cases in the literature.

Adolescent↗

Percutaneous occlusion of an iatrogenic aortosaphenous vein--coronary vein fistula via retrograde coronary sinus approach.

Inadvertent aortosaphenous vein graft-coronary vein anastomosis during coronary bypass surgery is an uncommon complication. We describe a case of aortosaphenous vein side-to-side anastomosis to an obtuse marginal vein resulting in a large arteriovenous fistula and elective closure, using embolization coils delivered percutaneously via the coronary sinus. The clinical findings, interventional procedure, and follow-up are also presented, with a discussion of alternative techniques used previously to treat iatrogenic aortosaphenous vein graft venous fistulae.

Aged↗

Percutaneous revascularization of an extensively diseased saphenous vein bypass graft with a saphenous vein-covered Palmaz stent.

A 68-year-old man developed unstable angina 12 years following coronary artery bypass surgery. Angiography revealed an extensive area of severe stenosis and diminished distal flow in a right coronary artery vein bypass graft. Given the high distal embolism rate associated with conventional catheter-based treatment of old degenerated vein grafts, the diseased area was "relined" with a composite autologous saphenous vein-covered stent. The procedure was performed using modifications of standard PTCA methods and resulted in a widely patent, smooth lumen. This initial case demonstrates that a degenerated saphenous vein graft can be successfully revascularized with an autologous saphenous vein-covered stent in an attempt to minimize the potential complications of standard catheter-based revascularization methods.

Aged↗

Varicose vein surgery and deep vein thrombosis.

A questionnaire was sent to 363 members of the Vascular Surgical Society of Great Britain and Ireland about their use of deep vein thrombosis (DVT) prophylaxis at the time of varicose vein surgery. Replies were received from 289 surgeons (80 percent), of whom only 29 percent regarded varicose veins as an important risk factor for DVT. Only 12 percent used subcutaneous heparin prophylaxis routinely, while 71 percent did so selectively, being influenced by a history of thromboembolism (95 percent), obesity (47 percent), age (35 percent), recurrent varicose veins (22 percent) and inpatient status (16 percent). At the end of the operation 52 percent applied crepe bandages, 25 percent other bandages, 13 percent stockings and 10 percent Tubigrip. Subsequently, antiembolism stockings were prescribed by 55 percent. There is a wide variation in opinion regarding DVT prophylaxis for patients having varicose vein surgery, which has both clinical and medicolegal implications.

Attitude of Health Personnel↗