Isolated Deep Venous Thrombosis: Implications for 2-Point Compression Ultrasonography of the Lower Extremity

Srikar Adhikari, Wesley G Zeger, Christopher Thom, J. Matthew Fields

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Study objective Two-point compression ultrasonography focuses on the evaluation of common femoral and popliteal veins for complete compressibility. The presence of isolated thrombi in proximal veins other than the common femoral and popliteal veins should prompt modification of 2-point compression technique. The objective of this study is to determine the prevalence and distribution of deep venous thrombi isolated to lower-extremity veins other than the common femoral and popliteal veins in emergency department (ED) patients with clinically suspected deep venous thrombosis. Methods This was a retrospective study of all adult ED patients who received a lower-extremity venous duplex ultrasonographic examination for evaluation of deep venous thrombosis during a 6-year period. The ultrasonographic protocol included B-mode, color-flow, and spectral Doppler scanning of the common femoral, femoral, deep femoral, popliteal, and calf veins. Results Deep venous thrombosis was detected in 362 of 2,451 patients (14.7%; 95% confidence interval [CI] 13.3% to 16.1%). Thrombus confined to the common femoral vein alone was found in 5 of 362 cases (1.4%; 95% CI 0.2% to 2.6%). Isolated femoral vein thrombus was identified in 20 of 362 patients (5.5%; 95% CI 3.2% to 7.9%). Isolated deep femoral vein thrombus was found in 3 of 362 cases (0.8%; 95% CI -0.1% to 1.8%). Thrombus in the popliteal vein alone was identified in 53 of 362 cases (14.6%; 95% CI 11% to 18.2%). Conclusion In our study, 6.3% of ED patients with suspected deep venous thrombosis had isolated thrombi in proximal veins other than common femoral and popliteal veins. Our study results support the addition of femoral and deep femoral vein evaluation to standard compression ultrasonography of the common femoral and popliteal vein, assuming that this does not have a deleterious effect on specificity.

Original languageEnglish (US)
Pages (from-to)262-266
Number of pages5
JournalAnnals of emergency medicine
Volume66
Issue number3
DOIs
StatePublished - Sep 1 2015

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Femoral Vein
Popliteal Vein
Venous Thrombosis
Lower Extremity
Ultrasonography
Thrombosis
Thigh
Confidence Intervals
Hospital Emergency Service
Veins
Retrospective Studies
Color

ASJC Scopus subject areas

  • Emergency Medicine

Cite this

Isolated Deep Venous Thrombosis : Implications for 2-Point Compression Ultrasonography of the Lower Extremity. / Adhikari, Srikar; Zeger, Wesley G; Thom, Christopher; Fields, J. Matthew.

In: Annals of emergency medicine, Vol. 66, No. 3, 01.09.2015, p. 262-266.

Research output: Contribution to journalArticle

Adhikari, Srikar ; Zeger, Wesley G ; Thom, Christopher ; Fields, J. Matthew. / Isolated Deep Venous Thrombosis : Implications for 2-Point Compression Ultrasonography of the Lower Extremity. In: Annals of emergency medicine. 2015 ; Vol. 66, No. 3. pp. 262-266.
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title = "Isolated Deep Venous Thrombosis: Implications for 2-Point Compression Ultrasonography of the Lower Extremity",
abstract = "Study objective Two-point compression ultrasonography focuses on the evaluation of common femoral and popliteal veins for complete compressibility. The presence of isolated thrombi in proximal veins other than the common femoral and popliteal veins should prompt modification of 2-point compression technique. The objective of this study is to determine the prevalence and distribution of deep venous thrombi isolated to lower-extremity veins other than the common femoral and popliteal veins in emergency department (ED) patients with clinically suspected deep venous thrombosis. Methods This was a retrospective study of all adult ED patients who received a lower-extremity venous duplex ultrasonographic examination for evaluation of deep venous thrombosis during a 6-year period. The ultrasonographic protocol included B-mode, color-flow, and spectral Doppler scanning of the common femoral, femoral, deep femoral, popliteal, and calf veins. Results Deep venous thrombosis was detected in 362 of 2,451 patients (14.7{\%}; 95{\%} confidence interval [CI] 13.3{\%} to 16.1{\%}). Thrombus confined to the common femoral vein alone was found in 5 of 362 cases (1.4{\%}; 95{\%} CI 0.2{\%} to 2.6{\%}). Isolated femoral vein thrombus was identified in 20 of 362 patients (5.5{\%}; 95{\%} CI 3.2{\%} to 7.9{\%}). Isolated deep femoral vein thrombus was found in 3 of 362 cases (0.8{\%}; 95{\%} CI -0.1{\%} to 1.8{\%}). Thrombus in the popliteal vein alone was identified in 53 of 362 cases (14.6{\%}; 95{\%} CI 11{\%} to 18.2{\%}). Conclusion In our study, 6.3{\%} of ED patients with suspected deep venous thrombosis had isolated thrombi in proximal veins other than common femoral and popliteal veins. Our study results support the addition of femoral and deep femoral vein evaluation to standard compression ultrasonography of the common femoral and popliteal vein, assuming that this does not have a deleterious effect on specificity.",
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AB - Study objective Two-point compression ultrasonography focuses on the evaluation of common femoral and popliteal veins for complete compressibility. The presence of isolated thrombi in proximal veins other than the common femoral and popliteal veins should prompt modification of 2-point compression technique. The objective of this study is to determine the prevalence and distribution of deep venous thrombi isolated to lower-extremity veins other than the common femoral and popliteal veins in emergency department (ED) patients with clinically suspected deep venous thrombosis. Methods This was a retrospective study of all adult ED patients who received a lower-extremity venous duplex ultrasonographic examination for evaluation of deep venous thrombosis during a 6-year period. The ultrasonographic protocol included B-mode, color-flow, and spectral Doppler scanning of the common femoral, femoral, deep femoral, popliteal, and calf veins. Results Deep venous thrombosis was detected in 362 of 2,451 patients (14.7%; 95% confidence interval [CI] 13.3% to 16.1%). Thrombus confined to the common femoral vein alone was found in 5 of 362 cases (1.4%; 95% CI 0.2% to 2.6%). Isolated femoral vein thrombus was identified in 20 of 362 patients (5.5%; 95% CI 3.2% to 7.9%). Isolated deep femoral vein thrombus was found in 3 of 362 cases (0.8%; 95% CI -0.1% to 1.8%). Thrombus in the popliteal vein alone was identified in 53 of 362 cases (14.6%; 95% CI 11% to 18.2%). Conclusion In our study, 6.3% of ED patients with suspected deep venous thrombosis had isolated thrombi in proximal veins other than common femoral and popliteal veins. Our study results support the addition of femoral and deep femoral vein evaluation to standard compression ultrasonography of the common femoral and popliteal vein, assuming that this does not have a deleterious effect on specificity.

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