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[Impedance plethysmography. Comparison of sensibility and specificity in recent deep venous thromboses of the lower limbs (author's transl)].
J Mal Vasc. 1982; 7(1):81-4.JM

Abstract

Although phlebocavography remains the ideal technique of diagnosis and reference, impedance plethysmography is a simple non-invasive technique which records variations in impedance of a limb segment through which a H.F. current is injected and with distal venous occlusion. Variations in impedance go hand in hand with variations in volume. It is thereby possible to demonstrate any obstacle to venous flow, either of an obstructive type if there is thrombosis of the major proximal collecting vessels, or of a restrictive type if there is thrombosis in the leg. The technical conditions of the examination and measurement are here fundamental and hence the value of a specially designed apparatus and multi-input abacuses in order to determine indices of emptying, filling and filling rate with simultaneous examination of both limbs. The method is selective for the diagnosis of recent deep venous thrombosis: 83% correlation between impedance and phlebography, 16% false positive and 1% false negative, reliability at the level of the thigh in 98% of cases, lesser reliability in the calf though the score can be improved and touch 94% by comparison of the two legs (Franco). Wuydin has reported a specificity of 85% and a sensitivity of 96%. This reliable, specific, objective, atraumatic, inexpensive and easily repeatable method may be used to give an overall quantification of a proximal obstructive thrombosis and define the existence of a thrombosis in the calf.

Authors

No affiliation info available

Pub Type(s)

Comparative Study
English Abstract
Journal Article

Language

fre

PubMed ID

7077177

Citation

Merlen, J F.. "[Impedance Plethysmography. Comparison of Sensibility and Specificity in Recent Deep Venous Thromboses of the Lower Limbs (author's Transl)]." Journal Des Maladies Vasculaires, vol. 7, no. 1, 1982, pp. 81-4.
Merlen JF. [Impedance plethysmography. Comparison of sensibility and specificity in recent deep venous thromboses of the lower limbs (author's transl)]. J Mal Vasc. 1982;7(1):81-4.
Merlen, J. F. (1982). [Impedance plethysmography. Comparison of sensibility and specificity in recent deep venous thromboses of the lower limbs (author's transl)]. Journal Des Maladies Vasculaires, 7(1), 81-4.
Merlen JF. [Impedance Plethysmography. Comparison of Sensibility and Specificity in Recent Deep Venous Thromboses of the Lower Limbs (author's Transl)]. J Mal Vasc. 1982;7(1):81-4. PubMed PMID: 7077177.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - [Impedance plethysmography. Comparison of sensibility and specificity in recent deep venous thromboses of the lower limbs (author's transl)]. A1 - Merlen,J F, PY - 1982/1/1/pubmed PY - 1982/1/1/medline PY - 1982/1/1/entrez SP - 81 EP - 4 JF - Journal des maladies vasculaires JO - J Mal Vasc VL - 7 IS - 1 N2 - Although phlebocavography remains the ideal technique of diagnosis and reference, impedance plethysmography is a simple non-invasive technique which records variations in impedance of a limb segment through which a H.F. current is injected and with distal venous occlusion. Variations in impedance go hand in hand with variations in volume. It is thereby possible to demonstrate any obstacle to venous flow, either of an obstructive type if there is thrombosis of the major proximal collecting vessels, or of a restrictive type if there is thrombosis in the leg. The technical conditions of the examination and measurement are here fundamental and hence the value of a specially designed apparatus and multi-input abacuses in order to determine indices of emptying, filling and filling rate with simultaneous examination of both limbs. The method is selective for the diagnosis of recent deep venous thrombosis: 83% correlation between impedance and phlebography, 16% false positive and 1% false negative, reliability at the level of the thigh in 98% of cases, lesser reliability in the calf though the score can be improved and touch 94% by comparison of the two legs (Franco). Wuydin has reported a specificity of 85% and a sensitivity of 96%. This reliable, specific, objective, atraumatic, inexpensive and easily repeatable method may be used to give an overall quantification of a proximal obstructive thrombosis and define the existence of a thrombosis in the calf. SN - 0398-0499 UR - https://www.unboundmedicine.com/medline/citation/7077177/[Impedance_plethysmography__Comparison_of_sensibility_and_specificity_in_recent_deep_venous_thromboses_of_the_lower_limbs__author's_transl_]_ DB - PRIME DP - Unbound Medicine ER -
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