Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0149871 (deep vein thrombosis)
 12,364 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

A total of 1290 patients were enrolled in a randomized multicentre double blind study in order to investigate the use of two doses of a new low molecular weight heparin, Logiparin, in the prevention of deep vein thrombosis (DVT) in general surgery. Patients who were included had no contraindication to heparin therapy and had at least one of the recognized risk factors for DVT. Patients were randomized to receive unfractionated heparin (UH) 5000 units b.d., Logiparin 2500 units daily or Logiparin 3500 units daily. Each treatment was given subcutaneously 2 h before surgery and continued for 7-10 days. Daily 125I-labelled fibrinogen uptake tests (FUTs) were performed from day 2 to day 7 to detect DVT, and phleboangiography was used to confirm the diagnosis. The wound was examined on a daily basis to check for haematoma formation, and all patients were followed up for 1 month after operation. All three treatment arms were well matched for age, sex, weight, diagnosis and type of operation performed. The three major inclusion criteria in the trial were malignancy, age over 60 years and a history of varicose veins. Positive FUTs (UH = 4.2 per cent, Logiparin 2500 units daily = 7.9 per cent, Logiparin 3500 units daily = 3.7 per cent) and positive angiograms (UH = 3.0 per cent, Logiparin 2500 units daily = 5.6 per cent, Logiparin 3500 units daily = 2.3 per cent) were significantly more common in the Logiparin 2500 units daily group than in the UH and Logiparin 3500 units daily groups. The rates of major complications (severe haemorrhage, death, pulmonary embolism, reintervention) were similar in the three groups.
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PMID:Prevention of perioperative deep vein thrombosis in general surgery: a multicentre double blind study comparing two doses of Logiparin and standard heparin. H.B.P.M. Research Group. 185 49

The frequency of deep vein thrombosis (DVT) in patients undergoing coronary artery bypass graft (CABG) surgery has not been established. Therefore to estimate the frequency of clinically silent DVT, we performed ultrasound examinations of the leg veins in 29 asymptomatic CABG patients before hospital discharge. We used high-resolution B-mode ultrasonography with color Doppler imaging. Fourteen (48.3%, 95% confidence interval 30.1 to 66.4%) had 20 documented leg vein thromboses, and all but one patient had DVT limited to the calf veins. Of the 20 thrombi 10 (50.0%) were present in the leg ipsilateral and 10 (50.0%) in the leg contralateral to the saphenous vein harvest site. None of the DVTs were suspected clinically. DVT was not associated with any local sign attributed to saphenous vein harvest such as pitting edema, incisional drainage, or local tenderness or with any putative risk factor for DVT such as cigarette use, distant history of malignancy, or varicose veins. Follow-up of these patients 5 to 11 months after CABG surgery showed no clinical evidence of DVT or pulmonary embolism. Our findings indicate that asymptomatic DVT of the calf occurs with surprisingly high frequency, 44.8% after CABG surgery. Future studies in patients undergoing CABG surgery should address the natural history of asymptomatic DVT, determine its clinical importance, and develop optimal strategies for prophylaxis and treatment.
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PMID:Frequency of deep venous thrombosis in asymptomatic patients with coronary artery bypass grafts. 185 29

A retrospective investigation was carried out in a total of 200 patients (100 women, 100 men) with an average age of 61.0 years (19-97 years) with a phlebographically verified deep vein thrombosis of the lower limbs. It was examined whether and how frequently acute phlebothromboses are associated with a malignant underlying disease not detected up to that time. Specific diagnostics showed that a malignancy could be detected in 11.5% of all patients. As expected, the number of freshly discovered malignant diseases rose with increasing age. Seventy-one percent of all patients with a phlebothrombosis and a simultaneous tumor condition were more than 60 years old. The results clearly show that screening for occult malignant diseases should be carried out systematically and routinely in patients with etiologically unclear acute deep vein thromboses, at least from the 50th year of life onwards.
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PMID:Frequency of malignant diseases in deep venous thrombosis of the lower extremities. 186 Oct 88

Coagulation system abnormalities in patients with malignancy ranges from asymptomatic laboratory abnormalities to overt clinical manifestations. To determine the incidence and significance of clinically manifest thromboembolic phenomena in patients with high-grade gliomas, the records were analyzed of 77 patients that presented between January 1985 and June 1988. Fifteen patients (19%) had clinically manifest deep venous thrombosis and/or pulmonary emboli during the course of their disease. All these patients were ambulatory before and at the time of diagnosis of the event. The thromboembolic episodes occurred at the time of initial management of the primary tumor while there was documented clinical improvement in the functional status of the patient or at the time of progression of the disease. One patient died as a result of a pulmonary embolism; in two others, an embolism was a significant contributor to the patient's death. Anticoagulation resulted in complications in two of eight patients treated. Thromboembolic events occur with high frequency in patients with high-grade gliomas and contribute to the high morbidity and mortality seen in these patients. The optimum approach to screening and the treatment of these events has not been determined.
Cancer 1991 Dec 15
PMID:The incidence and significance of thromboembolic complications in patients with high-grade gliomas. 193 12

Seventy-five patients with isolated calf vein thrombi were prospectively monitored with sequential duplex scans at 3- to 4-day intervals. Twenty-four patients (32%) propagated and 11 of these 24 (46%) into the popliteal or larger veins of the thigh. Sex, age, obesity, trauma, estrogen use, malignancy, varicose veins, smoking, surgery, and activity level were not predictive for proximal propagation. Proximal soleal vein thrombi had the highest incidence in both propagating and non-propagating groups. Thrombus extent and bilateral involvement were not predictive of propagation. Five percent (4 of 75 patients) had highly probable ventilation perfusion scans as their initial indication for duplex scanning. Deep vein thrombosis isolated to the calf is not a benign problem. If anticoagulant therapy is contraindicated, the progress of the thrombus can be followed by duplex scanning.
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PMID:Lower extremity calf thrombosis: to treat or not to treat? 194 69

A prospective randomized double-blind trial was performed comparing conventional low-dose heparin with a LMWH fragment (Kabi 2165, Fragmin) for thromboprophylaxis in elective general abdominal surgical patients. The first dose of the fragment was given in the evening before surgery, and thereafter every evening. There were 1002 analyzable patients, 826 having received correct prophylaxis. Sixty three percent of the patients were operated on for malignant diseases. The frequency of DVT was significantly reduced among patients with correct prophylaxis with the heparin fragment (9.2 to 5.0%, p = 0.02). In patients with malignancies the reduction was from 11.2 to 6.4% (p = 0.06). The frequency of bleeding was 6.7% among the heparin fragment patients and 2.7% among the patients given conventional heparin (p = 0.01). The corresponding frequencies for patients with malignancies were 3.2 and 2.8%, respectively (p = 0.28). All bleedings were minor and of no clinical significance. Local pain at the injection site was reported significantly less often among patients with the fragment. Twenty patients died, 13 with malignant disease, mortality being the same in the two groups. It is concluded that heparin fragment administered in the evening before surgery and then every evening is a practically acceptable alternative to prevent postoperative DVT in patients undergoing elective abdominal surgery, also when the histology shows malignancy. Thus, the advantages of using LMWH compared with conventional low-dose heparin are simplified administration routines, better thromboprophylactic effect, and less local pain at injection sites. A disadvantage is the slight increase in hemorrhagic side effects, all of minor clinical importance and not seen in patients undergoing surgery for malignancy.
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PMID:Thromboprophylactic effect of low molecular weight heparin started in the evening before elective general abdominal surgery: a comparison with low-dose heparin. 196

In 1988 and 1989 4581 patients had been hospitalized in the surgical department of the Stadtkrankenhaus Neuwied. These patients were treated prophylactically with a combination of low molecular weight heparin and dihydroergotamine in order to prevent deep vein thrombosis. The observed incidence of DVT and pulmonary embolism was extremely low. In patients who died during hospitalization, death was mainly caused by cancer or multimorbidity. Although some risk factors for developing DVT are recognized, we are at present not able to calculate the individual risk of a patient. Therefore, we need an effective and safe prophylaxis regimen for all patients undergoing surgical operations.
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PMID:[Can the individual risk of the patient for thromboembolic complications be estimated? What references can be used for differential therapeutic procedure?]. 198 3

In 1985, as a result of the high complication rate associated with anticoagulants in patients who have cancer and deep venous thrombosis (DVT) and/or pulmonary embolism (PE), we established a policy of placing Greenfield filters (GFs) as primary therapy instead of anticoagulation. Since 1985 we have been asked to consult in the treatment of 18 patients with cancer and with DVT and/or PE, and we have placed a GF in each of these patients. This represented 34% (18/53) of the filters placed during that same period. Over the same 4-year period, 11 patients with cancer and DVT and/or PE underwent anticoagulation therapy. The purpose of this study was to compare the results of anticoagulation versus GF insertion in these two groups of patients. A significantly higher number of major complications (n = 4) occurred in the anticoagulation group (p less than 0.05, Fisher's exact test) than in the GF group (n = 0). The four complications that occurred in the anticoagulation group included three bleeding episodes (tumor bleeding, gastrointestinal bleeding, and hip hematoma) and one PE, despite adequate anticoagulation. Two patients died as a direct result of these complications (PE and gastrointestinal bleeding). The three patients with bleeding complications each required a transfusion of more than 3 units of blood. All four of the patients with complications had metastatic disease (pancreatic carcinoma, chronic lymphocytic leukemia, prostate carcinoma, and uterine carcinoma). Although this is a small, nonrandomized, nonprospective study, the data seem to indicate that GF placement is safer than anticoagulation for DVT or PE in patients with cancer and particularly in patients with metastatic disease. We conclude that GF insertions may be a better primary treatment than anticoagulation.
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PMID:Greenfield filter as primary therapy for deep venous thrombosis and/or pulmonary embolism in patients with cancer. 198 34

The authors prospectively studied 113 consecutive patients with deep venous thrombosis of the lower extremities to determine the most appropriate workup study for searching for a hidden cancer. After a careful physical examination, the following routine tests were performed: erythrocyte sedimentation rate (ESR), whole blood counts, biochemistry, carcinoembryonic antigen (CEA) levels, chest radiograph, upper gastrointestinal endoscopy, abdominal ultrasound and computed tomography (CT) scan. If a malignant lesion was suspected, further appropriate studies were performed. After discharge, periodic follow-up was performed on all patients in the outpatient clinic. A malignant neoplasm was detected in 12 patients. Of these 12 patients, six were asymptomatic with the exception of experiencing thrombophlebitis. Cancer was found more commonly in patients with idiopathic deep vein thrombosis (DVT) (7 of 31 versus 5 of 82 patients with secondary DVT; P = 0.012), and in those patients with abnormal lactic dehydrogenase (LDH) levels (6 of 23 versus 6 of 90; P = 0.007). Abnormal CEA levels allowed diagnosis of two cases of colonic cancer (on colonoscopy). Both ultrasound and CT scan of the abdomen showed two cases of urinary bladder carcinoma at a very early stage. Furthermore, two cases of adenomatous polyps in colon were found, a condition considered by most authors to be a colorectal cancer precursor. In addition, there were five patients with large benign pelvic tumors, and two patients with absent inferior vena cava. The most striking finding was that some cases of cancer were at a very early stage. It was concluded that blood cell counts, LDH, CEA, chest radiograph, and abdominal ultrasonography (or CT scan) should be routinely performed on all patients with deep venous thrombosis (particularly those with idiopathic DVT). Malignancy would not have been recognized in some patients if these tests had not been performed.
Cancer 1991 Jan 15
PMID:Occult cancer in patients with deep venous thrombosis. A systematic approach. 198 47

A retrospective review covering a 9-year period revealed 113 patients who underwent 157 major bowel procedures during 130 operations performed solely by gynecologic oncology surgeons. Forty-eight percent of the operations were done for tumor cytoreduction, and 33% were performed for a bowel obstruction. Other indications included colostomy closure, fistula repair, resection for multiple enterotomies, temporary diversions, repair of perforated bowel, treatment for severe proctosigmoiditis, management of ureteral stricture, treatment for vulvar necrosis, and resection of an incidental small bowel tumor. Of the 157 procedures, 44% were colostomies, 32% were bowel resections with reanastomosis, 9% were urinary conduits, 6% were intestinal bypass procedures, 5% were colostomy closures, and 4% were ileostomies. Postoperative complications occurred in 32% of the 130 operations. These included wound infection, death, sepsis, fistula formation, urinary tract infection, unexplained febrile morbidity, anastomotic leakage, stomal infarction, adult respiratory distress syndrome, bowel obstruction, deep venous thrombosis, and wound hematoma. Four of the eight deaths were due to tumor progression, three were from sepsis, and one was from adult respiratory distress syndrome. Of the 130 operations, 89 (68%) were associated with no complications. These data support the concept that gynecologic oncology surgeons are able to perform intestinal operations as therapy for gynecologic malignancies with acceptable complication rates. Since a thorough understanding of the natural history of the cancer, familiarity with alternative therapeutic options, and knowledge of the prognosis are important in making operative decisions, and since gynecologic oncologists are technically capable of performing operations on the small bowel and colon, referral of patients with a primary or recurrent gynecologic malignancy or with a subsequent intestinal complication after initial therapy should be directed to the gynecologic oncologist whenever possible.
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PMID:Intestinal surgery performed on gynecologic cancer patients. 198 13


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