Prevention of Venous Thromboembolism : The Seventh ACCP Conference on Antithrombotic and Thrombolytic Therapy

http://xoomer.virgilio.it/lusebra/NuoviFile/PrevenzioneTVP.pdf

Prevention of venous thromboembolism

https://www.chpso.org/sites/main/files/file-attachments/chest-2008-geerts-381s-453s.pdf

Prevention of Venous Thromboembolism* American College of Chest Physicians Evidence- Based Clinical Practice Guidelines (8th Edition)

The Society for Vascular Surgery practice guidelines on the care of patients with an abdominal aortic aneurysm

https://www.srcv.ro/en/ghiduri/Preventia%20trombembolismului%20la%20pacientii%20nonortopedici%20-%20Ghidurile%20ACCP%202012.pdf

Prevention of VTE in Nonorthopedic Surgical Patients : Antithrombotic Therapy and Prevention of Thrombosis, 9th ed: American College of Chest Physicians Evidence-Based Clinical Practice Guidelines

• In the past 20 years since the first clinical management of a patient with a congenital anomaly associated with an abnormal medial head of the gastrocnemius muscle causing external compression on the popliteal artery, approximately 100 similar lesions have been documented in the world's literature. This has been a lesion of international interest, with only approximately 25% of the cases from hospitals in the United States. This present series of 14 lesions from Walter Reed Army Medical Center, Washington, DC, during a 12½-year period beginning in September 1966 emphasizes the increasing interest in this lesion. The young athletic male in whom intermittent claudication develops with strenuous exercise or the middle-aged patient with a popliteal aneurysm should be evaluated for the possibility of popliteal vascular entrapment. Medial deviation of the popliteal artery seen angiographically is a classic finding, however, there might also be segmental occlusion of the midpopliteal artery. This series outlines various types of popliteal vascular entrapment and documents successful surgical management. (Arch Surg114:1377-1384, 1979)

Popliteal vascular entrapment. Its increasing interest.

Popliteal vascular trauma continues to be associated with a relatively high morbidity rate when compared to other major vascular injuries in extremities. There is continuing controversy regarding the management of popliteal venous injuries. The advocates of ligation of injured veins have postulated that there is an increased incidence in thrombophlebitis and pulmonary embolism associated with attempted venous repair. There is a paucity of valid statistics supporting either side of this controversy. Clinical experience documented in the Vietnam Vascular Registry and experimental work at Walter Reed Army Institute of Research have supported our more aggressive approach for venous repair. This study evaluates the management of 110 injured popliteal veins without associated popliteal arterial trauma. Nearly an equal number were ligated and repaired. Thrombophlebitis and pulmonary embolism were not significant complications in this series. The only pulmonary embolus occurred after ligation of an injured popliteal vein. However, there was a significant increase in edema of the involved extremity following ligation, 50.9% compared to 13.2% after repair.

The effect of acute popliteal venous interruption.

There is a tendency toward hypercoagulability in the postoperative period. This is manifested by changes in a number of coagulation parameters, and if not offset by some protective mechanism, thrombosis may occur. This protection appears to be mediated more through the fibrinolytic mechanism than through the action of antithrombin 3 (AT-3) because AT-3 activity diminishes in the early postoperative period. The introduction of variables such as invasion of the vascular system, intraoperative heparin administration, administration of whole blood, and insertion of a Dacron prosthesis does not appreciably affect the response of the coagulation profile to operative stress.

The effects of operative stress on the coagulation profile

The popliteal artery entrapment syndrome is increasingly recognized as a cause of arterial insufficiency in the leg. Diagnosis is based on a clinical history of claudication, which may be atypical, physical examination, noninvasive exercise testing and angiography. Patients with normal ankle pulses and resting ankle/brachial pressure indexes may require extensive exercise testing to document arterial insufficiency. Angiographic demonstration of medial deviation of the popliteal artery is diagnostic of the popliteal artery entrapment syndrome. Arteries that appear normal on routine angiography require biplane angiography with various provocative maneuvers to demonstrate induced arterial stenosis. Using this approach, three additional cases of popliteal artery entrapment syndrome were diagnosed preoperatively and successfully treated with surgery.

Popliteal artery entrapment syndrome: Clinical, noninvasive and angiographic diagnosis☆

Fifteen of 596 (2.5 percent) carotid endarterectomies performed at Brooke Army Medical Center were complicated by significant wound hematomas requiring reoperation and hematoma evacuation. The wound hematomas resulted from capillary oozing in 80 percent of the cases and arteriotomy bleeders in 20 percent of the cases. Antiplatelet therapy and postoperative hypertension appear to be significant factors predisposing to the development of wound hematomas. In eight cases, local anesthesia was utilized for the hematoma evacuation, and there were no complications. When general anesthesia was utilized for hematoma evacuation, there was considerable difficulty with airway management in six of seven patients. Complications developed in four of these patients. One patient had respiratory insufficiency secondary to laryngeal edema. Two of the patients sustained myocardial infarctions, one of whom died, and a dense neurologic deficit developed in the fourth patient who died as a result of this complication. Meticulous surgical technique in obtaining hemostasis, control of postoperative hypertension, and wound drainage when indicated will help reduce the incidence of postoperative wound hematoma. When a significant postoperative wound hematoma does complicate carotid endarterectomy, the hematoma should be promptly evacuated utilizing local anesthesia.

Wound hematomas after carotid endarterectomy.

Handle everyday research tasks with reliable, citation-backed results

Your personal Research Agent to handle research tasks with citation-backed results

Popular Tasks used by Researchers

How can I help with your research?

Meet SciSpace

Get more enhanced response by uploading the PDFs you want me to reference.

No relevant PDFs in your library

SciSpace is the AI research assistant for academics. Run systematic literature reviews on 280M+ papers, and write papers with cited sources. Trusted by 1M+ students, PhDs & researchers.

SciSpace | AI for Research

Analyze PDFs

Code & Manuscripts

Funding & Grants

Literature & Patents

Medical & Clinical Data

Systematic Review

Visualize & Present

Web & Data

Build a Google Scholar-like website for your research.

Build a website

Create charts and images for your research

Create a Chart

Write a paper for submission to a journal

Draft a manuscript

Patent Search

Design eye-catching scientific posters in minutes.

Scientific Poster Generation

Systematic Literature Review

One task is running at the moment. Your messages will be shown right after.

Drag and drop or click here to browse

Loved by <highlight>1 million+</highlight> researchers

Extract a list of specific topics and their sources from unstructured text

Topics

Compare and analyze relevant papers that matches with your search

Papers

Get insights from PDFs and bookmarked papers from your library

My library

Recent searches

Try searching for:

Catch AI-generated content in scholarly and non-scholarly content

{ai} Detector

Ai Writer

Get PDF Summaries, highlighted text explanations 

Chat with PDF

Effortlessly create in-text citations and bibliographies in APA and 2,500 other formats

Citation generator

Get explanations, summaries, and answers on academic papers

Ease up your research workflow with {scispace}'s cohort of exciting AI tools

Elevate your academic writing skills and convey your ideas the way you want

Paraphraser

Explore our range of reading and writing tools

Your file is being prepared and should be ready in a few minutes. If it's a large file, it might take a bit longer. You can close this window, and we'll email you the file when it's done.

You have reached a maximum limit of <strong>{limit}</strong> columns in the table. Remove at least <strong>1</strong> column to add or create another one.

George J. Collins

Author Tools

Chat about Author