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Query: UMLS:C0149871 (deep vein thrombosis)
 12,364 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Out of 112 patients who had a Linton flap operation recurrences developed in 13.3%. The most common causes of it were the incomplete first operation and deep venous thrombosis developing in the follow up period.
J Cardiovasc Surg (Torino)
PMID:Recurrences after Linton flap operation. 42 54

Forty-three patients with deep vein thrombosis were given fibrinolytic therapy with streptokinase and/or urokinase. In all patients the diagnosis was made phlebographically, and repeat phlebography was performed after termination of therapy. Sixty-four of 104 vein segments initially occluded (62%) were partially or completely recanalized. No vein segments particularly suitable for fibrinolytic therapy could be defined. The therapy was as successful in cases in which the thrombosis extended over several segments as in those in which the occlusions involved only one or two segments. Similarly, there was no difference in the success rate for thrombi that were still freely floating and for thrombi that occluded the veins completely. It is recommended that fibrinolytic therapy be given in suitable cases in which clinical symptoms have persisted up to two weeks; in some cases this limit may even be extended up to one month.
Cardiovasc Radiol 1978 Jul 25
PMID:Repeated phlebographic examination during and after fibrinolytic therapy with streptokinase and urokinase. 74 11

Impedance plethysmography (IPG) was used to study 132 legs: 100 in normal volunteers not subjected to radiocontrast phlebography, seven in patients whose limbs were phlebographically normal, and 25 proven by phlebography to have deep venous thrombosis (DVT). There were no false positive IPG results when a maximum venous outflow of 0.2% was the discriminant. However, in the 25 legs with thrombosis in calf, popliteal, femoral, and iliac veins, clots were not detected by IPG in 44--51% of legs, depending upon the discriminant. These results, which are in agreement with data reported elsewhere, indicate that it is reasonable to use the IPG method as the sole diagnostic maneuver when the test result is clearly abnormal, but that if the result is not abnormal, a radiocontrast phlebogram is necessary.
Cardiovasc Radiol 1978 Oct 31
PMID:Impedance plethysmography: its limitations as a substitute for phlebography. 74 18

The color Doppler scanner was used to analyze acute deep venous thrombosis in 14 patients. A thrombus was found in the superficial femoral vein in 4 patients and in the superficial femoral and popliteal veins in 6 patients; a popliteal occlusion was found in 4 patients. All 14 patients were treated with intravenous heparin followed by at least 3 months of warfarin therapy. Patients were re-examined between 24 and 48 months. Six patients were symptomatic; 8 were asymptomatic. Five patients had occluding thrombus in the distal popliteal vein; major competent collateral channels developed from the proximal superficial femoral vein, and they remained asymptomatic. Three patients whose superficial femoral veins recanalized without valvular incompetence were asymptomatic. Valvular incompetence was observed in all of the symptomatic patients. Patients with persistent popliteal occlusion and collateral channels have fewer symptoms than patients with valvular incompetence in the superficial femoral and popliteal veins.
J Cardiovasc Surg (Torino)
PMID:Importance of valvular incompetence after acute deep venous thrombosis. 128 9

Among 3,307 consecutive patients (3,556 legs) with deep venous thrombosis, 54 (1.5%) showed an isolated thrombus of the popliteal vein on phlebography. The majority of those had a history of "effort" or long lasting flexion during air or bus travel. Forty-four percent suffered from pulmonary embolism as the first sign of deep venous thrombosis. Functional phlebography demonstrated the primary site of thrombosis at folds forming in the vein wall at flexion. In order to further elucidate the pathogenetic mechanism, 158 popliteal veins were examined phlebographically in different functional states revealing age-related characteristic wall patterns of rings and folds in flexion causing transient impairment of flow. Complementary morphological studies of 120 popliteal veins during autopsy showed a transverse rippling of the vein wall caused by intimal fibrosis and partial atrophy of the media corresponding to the phlebographic findings. It is concluded that microtrauma during effort in combination with impaired venous backflow and fibrotic transformation of the venous wall can lead to thrombus formation in the popliteal vein.
Cardiovasc Intervent Radiol
PMID:Thrombosis of the popliteal vein. 139 60

Thrombosis of the inferior vena cava (IVC) is an infrequent cause of thrombosis when large series of patients with deep vein thrombosis are examined. It may provide a diagnostic challenge in that lower extremity edema may be absent. The management has varied in published series with different authors recommending anticoagulant therapy (heparin or fibrinolytic therapy), surgical venous thrombectomy, or IVC interruption. We describe a case of IVC thrombosis presenting with pulmonary emboli, successfully treated with low-dose infusional Streptokinase.
J Cardiovasc Surg (Torino)
PMID:IVC thrombosis: successful treatment with low dose streptokinase. 154 88

Arteriovenous fistula is an infrequent complication of lumbar disc surgery. It is often not suspected, and the symptoms are diagnosed as deep venous thrombosis or heart failure. As a result of our review of the Brazilian literature and a survey of 3,500 Brazilian physicians, 5 cases of post-laminectomy arteriovenous fistula are added to the literature. A review of these cases shows that: (1) the right common iliac artery was injured in most cases, (2) the vena cava was frequently injured, and (3) direct repair was possible when the vena cava and the aorta were injured. A vascular prosthesis was necessary when the iliac arteries were damaged. The correct diagnosis is usually made by detection of an abdominal bruit in a patient with a history of lumbar disc surgery and is confirmed by arteriogram. Surgical treatment, either by suture or bypass, is the treatment of choice and results in cure.
J Cardiovasc Surg (Torino)
PMID:Postlaminectomy arteriovenous fistula: the Brazilian experience. 175

Within the past 5 years, venous imaging has rapidly evolved. Ultrasound, predominantly utilizing compression, is now the technique of choice for assessment of extremity venous thrombosis. Issues regarding pulmonary embolism, calf clots, ancillary findings, chronic clots, and the high-risk patient are discussed as they relate to lower extremity deep vein thrombosis. A brief review of upper extremity venous imaging is also included.
Cardiovasc Intervent Radiol
PMID:Contemporary venous imaging. 185 39

Expanded indications for caval interruption and earlier diagnosis of deep venous thrombosis have resulted in increased use of transvenous caval interruption devices and have intensified the search for the ideal caval filter. The Vena Tech vena cava filter is a percutaneous, transvenous caval interruption device which was recently introduced in the United States. We reviewed our experience with this filter. During the period of September 1989 to July 1990, 41 patients underwent placement of the Vena Tech filter. Indications for filter insertion included deep venous thrombosis with a contraindication to anticogulation (61%), pulmonary embolism while on anticoagulant therapy (29%), and prophylaxis (10%). Insertion was accomplished percutaneously in 40 patients (98%) and via cutdown in one patient. Thirty-nine (95%) were placed from the right internal jugular vein and two (5%) from the right femoral vein. There were no deaths related to filter placement. Incomplete opening of the filter occurred in 8 patients (19%); however, the incidence of deployment problems decreased as our experience increased. Pulmonary embolism after filter placement occurred in one patient (2%). Duplex scan was obtained postoperatively in 15 patients (mean follow-up 120 days). The inferior vena cava was patent in all patients, although nonoccluding thrombus was identified in the filter in one patient. We conclude the Vena Tech filter is an effective device for caval interruption, is easily inserted, and is associated with minimal morbidity.
J Cardiovasc Surg (Torino)
PMID:The Vena Tech filter: evaluation of a new inferior vena cava interruption device. 193 34

In the treatment of DVT fibrinolytic therapy offers the possibility of rapid clot dissolution resulting in symptomatic relief of the acute episode as well as preservation of venous valve function and prevention of long-term disability from chronic venous insufficiency. A review of published studies comparing fibrinolytic therapy with SK to anticoagulation alone indicates that substantial venographic improvement occurs in 45% of SK treated patients compared with only 5% receiving only anticoagulation. Substantial data indicate a high incidence of venous valvular dysfunction and eventual development of chronic venous insufficiency in patients with extensive leg DVT treated with anticoagulants alone. The available data on the long-term benefits of thrombolytic therapy in preventing chronic venous insufficiency suggest that fibrinolytic therapy reduces long-term morbidity. Because best results are obtained by treatment soon after the onset of symptoms, it follows that the postphlebitic syndrome can be best avoided by prompt thrombolytic therapy of patients with acute DVT. Bleeding complications are more frequent after thrombolytic therapy than anticoagulant therapy, but most are related to invasive vascular procedures and can be minimized by proper patient selection and management. Available studies of rt-PA in treatment of DVT indicate that infusion durations of 24 hours or more may be required; further studies will be needed to evaluate the response to rt-PA compared with those of SK or UK. Thrombosis of the axillary/subclavian veins of the upper extremity, occurring spontaneously or in association with indwelling venous catheters, also respond well to regional or systemic fibrinolytic therapy, which may reduce the likelihood of developing chronic arm symptoms related to venous insufficiency.
Prog Cardiovasc Dis
PMID:Fibrinolytic therapy for venous thrombosis. 194 24


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