Assessing local tissue edema in postmastectomy lymphedema.
Identifieur interne : 007484 ( Main/Merge ); précédent : 007483; suivant : 007485Assessing local tissue edema in postmastectomy lymphedema.
Auteurs : H N Mayrovitz [États-Unis]Source :
- Lymphology [ 0024-7766 ] ; 2007.
Descripteurs français
- KwdFr :
- Adulte, Adulte d'âge moyen, Bras, Complications postopératoires (anatomopathologie), Complications postopératoires (étiologie), Femelle, Humains, Lymphoedème (anatomopathologie), Lymphoedème (étiologie), Mastectomie (), Mastectomie (effets indésirables), Oedème (diagnostic), Oedème (étiologie), Sujet âgé, Sujet âgé de 80 ans ou plus, Études cas-témoins.
- MESH :
- anatomopathologie : Complications postopératoires, Lymphoedème.
- diagnostic : Oedème.
- effets indésirables : Mastectomie.
- étiologie : Complications postopératoires, Lymphoedème, Oedème.
- Adulte, Adulte d'âge moyen, Bras, Femelle, Humains, Mastectomie, Sujet âgé, Sujet âgé de 80 ans ou plus, Études cas-témoins.
English descriptors
- KwdEn :
- Adult, Aged, Aged, 80 and over, Arm, Case-Control Studies, Edema (diagnosis), Edema (etiology), Female, Humans, Lymphedema (etiology), Lymphedema (pathology), Mastectomy (adverse effects), Mastectomy (methods), Middle Aged, Postoperative Complications (etiology), Postoperative Complications (pathology).
- MESH :
- adverse effects : Mastectomy.
- diagnosis : Edema.
- etiology : Edema, Lymphedema, Postoperative Complications.
- methods : Mastectomy.
- pathology : Lymphedema, Postoperative Complications.
- Adult, Aged, Aged, 80 and over, Arm, Case-Control Studies, Female, Humans, Middle Aged.
Abstract
Overall limb lymphedema can be assessed by several methods but none are suitable to determine local edema. Quantifying local edema could provide important information not previously available. Our goal was to determine the suitability of using the tissue dielectric constant (TDC) as and index of local tissue water to detect and quantify edema in postmastectomy patients with unilateral arm lymphedema. Segmental arm volume and TDC were measured in both arms of 18 women with unilateral lymphedema, and in 15 premenopausal and 15 postmenopausal controls. TDC was measured at a frequency of 300 MHz using open-ended coaxial probes with effective measuring depths of 0.5, 1.5, 2.5 and 5.0 mm. For patients and controls, absolute TDC depended on measurement depth but for any depth the TDC of lymphedematous segments was significantly greater than for non-affected contralateral arms (p<0.001). At a depth of 2.5 mm, the TDC ratio between arms for patients was 1.64+/-0.30 vs.1.04+/-0.04 for both control groups (p<0.001). No patient's TDC ratio was as low as 1.2 and no control subject's TDC ratio was as great as 1.2. Results suggest that this method is a good quantitative discriminator of the presence of lymphedema in patients with unilateral limb lymphedema.
PubMed: 17853619
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pubmed:17853619Le document en format XML
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<series><title level="j">Lymphology</title>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Adult</term>
<term>Aged</term>
<term>Aged, 80 and over</term>
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<term>Case-Control Studies</term>
<term>Edema (diagnosis)</term>
<term>Edema (etiology)</term>
<term>Female</term>
<term>Humans</term>
<term>Lymphedema (etiology)</term>
<term>Lymphedema (pathology)</term>
<term>Mastectomy (adverse effects)</term>
<term>Mastectomy (methods)</term>
<term>Middle Aged</term>
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<term>Postoperative Complications (pathology)</term>
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<term>Bras</term>
<term>Complications postopératoires (anatomopathologie)</term>
<term>Complications postopératoires (étiologie)</term>
<term>Femelle</term>
<term>Humains</term>
<term>Lymphoedème (anatomopathologie)</term>
<term>Lymphoedème (étiologie)</term>
<term>Mastectomie ()</term>
<term>Mastectomie (effets indésirables)</term>
<term>Oedème (diagnostic)</term>
<term>Oedème (étiologie)</term>
<term>Sujet âgé</term>
<term>Sujet âgé de 80 ans ou plus</term>
<term>Études cas-témoins</term>
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<keywords scheme="MESH" qualifier="adverse effects" xml:lang="en"><term>Mastectomy</term>
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<keywords scheme="MESH" qualifier="anatomopathologie" xml:lang="fr"><term>Complications postopératoires</term>
<term>Lymphoedème</term>
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<keywords scheme="MESH" qualifier="diagnosis" xml:lang="en"><term>Edema</term>
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<keywords scheme="MESH" qualifier="diagnostic" xml:lang="fr"><term>Oedème</term>
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<keywords scheme="MESH" qualifier="effets indésirables" xml:lang="fr"><term>Mastectomie</term>
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<keywords scheme="MESH" qualifier="etiology" xml:lang="en"><term>Edema</term>
<term>Lymphedema</term>
<term>Postoperative Complications</term>
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<keywords scheme="MESH" qualifier="methods" xml:lang="en"><term>Mastectomy</term>
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<keywords scheme="MESH" qualifier="pathology" xml:lang="en"><term>Lymphedema</term>
<term>Postoperative Complications</term>
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<term>Arm</term>
<term>Case-Control Studies</term>
<term>Female</term>
<term>Humans</term>
<term>Middle Aged</term>
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<term>Adulte d'âge moyen</term>
<term>Bras</term>
<term>Femelle</term>
<term>Humains</term>
<term>Mastectomie</term>
<term>Sujet âgé</term>
<term>Sujet âgé de 80 ans ou plus</term>
<term>Études cas-témoins</term>
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<front><div type="abstract" xml:lang="en">Overall limb lymphedema can be assessed by several methods but none are suitable to determine local edema. Quantifying local edema could provide important information not previously available. Our goal was to determine the suitability of using the tissue dielectric constant (TDC) as and index of local tissue water to detect and quantify edema in postmastectomy patients with unilateral arm lymphedema. Segmental arm volume and TDC were measured in both arms of 18 women with unilateral lymphedema, and in 15 premenopausal and 15 postmenopausal controls. TDC was measured at a frequency of 300 MHz using open-ended coaxial probes with effective measuring depths of 0.5, 1.5, 2.5 and 5.0 mm. For patients and controls, absolute TDC depended on measurement depth but for any depth the TDC of lymphedematous segments was significantly greater than for non-affected contralateral arms (p<0.001). At a depth of 2.5 mm, the TDC ratio between arms for patients was 1.64+/-0.30 vs.1.04+/-0.04 for both control groups (p<0.001). No patient's TDC ratio was as low as 1.2 and no control subject's TDC ratio was as great as 1.2. Results suggest that this method is a good quantitative discriminator of the presence of lymphedema in patients with unilateral limb lymphedema.</div>
</front>
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