In spite of identifying patients at increased risk of [[venous thromboembolism]] (VTE), there is no clear clinical value for screening the general population. Screening for asymptomatic deep vein thrombosis (DVT) with venous [[compression ultrasound]] is not recommended for critically ill medical patients,<ref name="pmid22315261">{{cite journal| author=Kahn SR, Lim W, Dunn AS, Cushman M, Dentali F, Akl EA et al.| title=Prevention of VTE in nonsurgical patients: Antithrombotic Therapy and Prevention of Thrombosis, 9th ed: American College of Chest Physicians Evidence-Based Clinical Practice Guidelines. | journal=Chest | year= 2012 | volume= 141 | issue= 2 Suppl | pages= e195S-226S | pmid=22315261 | doi=10.1378/chest.11-2296 | pmc=PMC3278052 | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=22315261 }} </ref> patients undergoing general surgery<ref name="pmid22315263">{{cite journal| author=Gould MK, Garcia DA, Wren SM, Karanicolas PJ, Arcelus JI, Heit JA et al.| title=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. | journal=Chest | year= 2012 | volume= 141 | issue= 2 Suppl | pages= e227S-77S | pmid=22315263 | doi=10.1378/chest.11-2297 | pmc=PMC3278061 | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=22315263 }} </ref> or orthopedic surgeries.<ref name="pmid22315265">{{cite journal| author=Falck-Ytter Y, Francis CW, Johanson NA, Curley C, Dahl OE, Schulman S et al.| title=Prevention of VTE in orthopedic surgery patients: Antithrombotic Therapy and Prevention of Thrombosis, 9th ed: American College of Chest Physicians Evidence-Based Clinical Practice Guidelines. | journal=Chest | year= 2012 | volume= 141 | issue= 2 Suppl | pages= e278S-325S | pmid=22315265 | doi=10.1378/chest.11-2404 | pmc=PMC3278063 | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=22315265 }} </ref>
Screening for asymptomatic deep vein thrombosis (DVT) with venous [[compression ultrasound]] is not recommended for critically ill medical patients,<ref name="pmid22315261">{{cite journal| author=Kahn SR, Lim W, Dunn AS, Cushman M, Dentali F, Akl EA et al.| title=Prevention of VTE in nonsurgical patients: Antithrombotic Therapy and Prevention of Thrombosis, 9th ed: American College of Chest Physicians Evidence-Based Clinical Practice Guidelines. | journal=Chest | year= 2012 | volume= 141 | issue= 2 Suppl | pages= e195S-226S | pmid=22315261 | doi=10.1378/chest.11-2296 | pmc=PMC3278052 | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=22315261 }} </ref> patients undergoing general surgery<ref name="pmid22315263">{{cite journal| author=Gould MK, Garcia DA, Wren SM, Karanicolas PJ, Arcelus JI, Heit JA et al.| title=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. | journal=Chest | year= 2012 | volume= 141 | issue= 2 Suppl | pages= e227S-77S | pmid=22315263 | doi=10.1378/chest.11-2297 | pmc=PMC3278061 | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=22315263 }} </ref> or orthopedic surgeries.<ref name="pmid22315265">{{cite journal| author=Falck-Ytter Y, Francis CW, Johanson NA, Curley C, Dahl OE, Schulman S et al.| title=Prevention of VTE in orthopedic surgery patients: Antithrombotic Therapy and Prevention of Thrombosis, 9th ed: American College of Chest Physicians Evidence-Based Clinical Practice Guidelines. | journal=Chest | year= 2012 | volume= 141 | issue= 2 Suppl | pages= e278S-325S | pmid=22315265 | doi=10.1378/chest.11-2404 | pmc=PMC3278063 | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=22315265 }} </ref>
==Screening==
* In spite of identifying patients at increased risk of [[venous thromboembolism]] (VTE), there is no clear clinical value for screening the general population. Screening for asymptomatic deep vein thrombosis (DVT) with venous [[compression ultrasound]] is not recommended for critically ill medical patients,<ref name="pmid22315261">{{cite journal| author=Kahn SR, Lim W, Dunn AS, Cushman M, Dentali F, Akl EA et al.| title=Prevention of VTE in nonsurgical patients: Antithrombotic Therapy and Prevention of Thrombosis, 9th ed: American College of Chest Physicians Evidence-Based Clinical Practice Guidelines. | journal=Chest | year= 2012 | volume= 141 | issue= 2 Suppl | pages= e195S-226S | pmid=22315261 | doi=10.1378/chest.11-2296 | pmc=PMC3278052 | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=22315261 }} </ref> patients undergoing general surgery<ref name="pmid22315263">{{cite journal| author=Gould MK, Garcia DA, Wren SM, Karanicolas PJ, Arcelus JI, Heit JA et al.| title=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. | journal=Chest | year= 2012 | volume= 141 | issue= 2 Suppl | pages= e227S-77S | pmid=22315263 | doi=10.1378/chest.11-2297 | pmc=PMC3278061 | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=22315263 }} </ref> or orthopedic surgeries.<ref name="pmid22315265">{{cite journal| author=Falck-Ytter Y, Francis CW, Johanson NA, Curley C, Dahl OE, Schulman S et al.| title=Prevention of VTE in orthopedic surgery patients: Antithrombotic Therapy and Prevention of Thrombosis, 9th ed: American College of Chest Physicians Evidence-Based Clinical Practice Guidelines. | journal=Chest | year= 2012 | volume= 141 | issue= 2 Suppl | pages= e278S-325S | pmid=22315265 | doi=10.1378/chest.11-2404 | pmc=PMC3278063 | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=22315265 }} </ref>
* The sensitivity and specificity of compression [[ultrasound]] (CUS) for proximal DVT are high (97% and 98%, respectively).<ref name="pmid9867760">{{cite journal |author=Kearon C, Ginsberg JS, Hirsh J |title=The role of venous ultrasonography in the diagnosis of suspected deep venous thrombosis and pulmonary embolism |journal=Ann. Intern. Med. |volume=129 |issue=12 |pages=1044–9 |year=1998 |month=December |pmid=9867760 |doi= |url=}}</ref> On the other hand, the sensitivity and specificity of CUS for distal DVTs are lower;<ref name="pmid9867760">{{cite journal |author=Kearon C, Ginsberg JS, Hirsh J |title=The role of venous ultrasonography in the diagnosis of suspected deep venous thrombosis and pulmonary embolism |journal=Ann. Intern. Med. |volume=129 |issue=12 |pages=1044–9 |year=1998 |month=December |pmid=9867760 |doi= |url=}}</ref><ref name="pmid9546569">{{cite journal |author=Anand SS, Wells PS, Hunt D, Brill-Edwards P, Cook D, Ginsberg JS |title=Does this patient have deep vein thrombosis? |journal=JAMA |volume=279 |issue=14 |pages=1094–9 |year=1998 |month=April |pmid=9546569 |doi= |url=}}</ref> a meta-analysis reported a sensitivity of 50% to 75% and a specificity of 90% to 95%.<ref name="pmid9867760">{{cite journal |author=Kearon C, Ginsberg JS, Hirsh J |title=The role of venous ultrasonography in the diagnosis of suspected deep venous thrombosis and pulmonary embolism |journal=Ann. Intern. Med. |volume=129 |issue=12 |pages=1044–9 |year=1998 |month=December |pmid=9867760 |doi= |url=}}</ref>
In spite of identifying patients at increased risk of venous thromboembolism (VTE), there is no clear clinical value for screening the general population. Screening for asymptomatic deep vein thrombosis (DVT) with venous compression ultrasound is not recommended for critically ill medical patients,[1] patients undergoing general surgery[2] or orthopedic surgeries.[3]