Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 5 de 5
Filtrar
Mais filtros










Base de dados
Intervalo de ano de publicação
1.
J Med Vasc ; 49(2): 103-111, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38697706

RESUMO

Vascular malformations can present with a variety of symptoms and an unpredictable course with the occurrence of wounds. Ulcerations in patients with vascular malformations are fortunately rare. Although few data exist, complications may involve a variety of mechanistic or hemodynamic factors. A rigorous etiological and vascular assessment is therefore essential. In view of the paucity of recommendations, the Wound and Healing Group of the French Society of Vascular Medicine, based on the literature on the subject, presents a number of suggestions for the diagnosis and management of wounds associated with vascular malformations.


Assuntos
Malformações Vasculares , Cicatrização , Humanos , Doença Crônica , Malformações Vasculares/complicações , Malformações Vasculares/diagnóstico por imagem , Malformações Vasculares/terapia
2.
Phlebology ; 39(3): 169-173, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-37978831

RESUMO

OBJECTIVE: The International Union of Phlebology recommends measuring at least D-dimer and fibrinogen levels in the diagnosis of extensive extra-truncular venous malformations, with a surface area of 10 cm2 or those which are deep, as well as prior to any interventional procedure. The aim of the study was to characterise venous malformations associated with a possible vascular complication. METHOD: This study was an observational and multicentre study. The objective was to explore the presence of a possible coagulation disorder among patients with venous malformation. The primary endpoint was to characterise venous malformations with increased D-dimer levels. RESULTS: The majority of the 72 venous malformations were located in the trunk region, mostly in intramuscular or subcutaneous locations. There were 72 venous malformations with increased D-dimer levels including 3 with biological disseminated intravascular coagulation (elevated D-dimer and fibrinogen <1 g/L). The anticoagulant treatments administered were very heterogeneous in class and dosage, and at the end of the treatment, 17 elevated D-dimers were persistent, 9 venous malformations remained painful and 27 showed thrombotic regression. CONCLUSION: Venous vascular malformations are probably underestimated and should probably be explored more systematically in terms of coagulation disorder regardless of size or symptomatology. The therapeutic recommendations to treat localised intravascular coagulation with low-molecular weight are not widely applied. Studies are needed, in particular to assess the role of oral anticoagulants in the management of coagulation disorder among patients with venous malformation.


Assuntos
Transtornos da Coagulação Sanguínea , Malformações Vasculares , Humanos , Anticoagulantes/uso terapêutico , Malformações Vasculares/diagnóstico , Veias/anormalidades , Fibrinogênio/uso terapêutico , Produtos de Degradação da Fibrina e do Fibrinogênio
3.
J Vasc Surg Venous Lymphat Disord ; 10(1): 186-195.e25, 2022 01.
Artigo em Inglês | MEDLINE | ID: mdl-33964512

RESUMO

OBJECTIVE: To determine the effects of graduated and progressive elastic compression stockings (ECS) on postural diameter changes and viscoelasticity of leg veins in healthy controls and in limbs with chronic venous disease (CVD). METHODS: In 57 patients whose legs presented with C1s, C3, or C5 CEAP classes of chronic venous disease and were treated primarily with compression, and 54 healthy controls matched for age and body mass index, we recorded interface pressures (IFP) at 9 reference leg levels. Cross-sectional areas of the small saphenous vein (SSV) and a deep calf vein (DCV) were measured with B-mode ultrasound with patients supine and standing, recording the force (PF) applied on the ultrasound probe to collapse each vein with progressive ECS, and with and without graduated 15 to 20 mm Hg and 20 to 36 mm Hg elastic stockings. We chose these veins because they were free of detectable lesion and could be investigated at the same level (mid-height of the calf), and their compression by the ultrasound probe was not hampered by bone structures. RESULTS: IFP decreased from ankle to knee with graduated 15 to 20 and 20 to 36 mm Hg, but increased with progressive ECS, and were 8.4 to 13.8 mm Hg lower for C1s than for control or C3 and C5 limbs. Without ECS, the SSV median [lower-upper quartile] cross-sectional area was 4.9 mm2 [3.6-7.1 mm2] and 7.1 mm2 [3.0-9.9 mm2] in C3 and C5 limbs versus 2.9 mm2 [1.8-5.2 mm2] and 3.8 mm2 [2.1-5.4 mm2] in controls (P < .01), respectively, while supine and standing. It remained greater in C3 and C5 than in C1s and control limbs wearing any ESC. Wearing compression, especially with progressive ECS, decreased the SSV and DCV cross-sectional area only with patients supine, thus decreasing postural changes, which remained highly diverse between individuals. The SSV cross-sectional area versus PF function traced a hysteresis loop of which the area, related to viscosity, was greater in C3 and C5 limbs than controls, even with graduated 15 to 20 or 20 to 36 mm Hg ECS. Progressive ECS decreased vein viscosity in the supine position, whereas 20 to 36 mm Hg and progressive ECS increased distensibility in the standing position. CONCLUSIONS: ECS decrease the cross-sectional area of SSV and DCV with patients supine, but not upright. C1s limbs show distinctive features, especially regarding IFP. Graduated 20 to 36 mm Hg and progressive stockings lower viscosity and increase distensibility of the SSV.


Assuntos
Perna (Membro)/irrigação sanguínea , Meias de Compressão , Doenças Vasculares/fisiopatologia , Doenças Vasculares/terapia , Veias/fisiopatologia , Adulto , Idoso , Estudos de Casos e Controles , Doença Crônica , Elasticidade , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Postura , Pressão , Viscosidade
4.
J Vasc Surg Venous Lymphat Disord ; 9(4): 987-997.e2, 2021 07.
Artigo em Inglês | MEDLINE | ID: mdl-33227457

RESUMO

OBJECTIVE: The noninvasive measurement of venous wall deformation induced by changes in transmural pressure could allow for the assessment of viscoelasticity and differentiating normal from diseased veins. METHODS: In 57 patients with limbs in the C1s (telangiectasia or reticular veins and symptoms), C3 (edema), or C5 (healed venous ulcer) CEAP (clinical, etiologic, anatomic, pathophysiologic) category of chronic venous disease and 54 matched healthy controls, we measured the changes in the cross-sectional area of the small saphenous vein and a deep calf vein in the supine and standing positions and under compression with an ultrasound probe using ultrasonography. RESULTS: The small saphenous vein, but not the deep calf vein, cross-sectional area was smaller in the limbs of the controls than in the limbs with C3 or C5 disease but was not different from that in C1s limbs. When changing from the supine to the standing position, a greater force was required to collapse the leg veins. Their cross-sectional area increased in most subjects but decreased in 31.5% of them as for the small saphenous veins and 40.5% for the deep calf vein. The small saphenous vein area vs compression force function followed a hysteresis loop, demonstrating viscoelastic features. Its area, which represents the viscosity component, was greater (P < .001) in the pooled C3 and C5 limbs (median, 2.40 N⋅mm2; lower quartile [Q1] to upper quartile [Q3], 1.65-3.88 N⋅mm2) than in the controls (median, 1.24 N⋅mm2; Q1-Q3, 0.64-2.14 N⋅mm2) and C1s limbs (median, 1.15 N⋅mm2; Q1-Q3, 0.71-2.97 N⋅mm2). The area increased (P < .0001) in the standing position in all groups. CONCLUSIONS: Postural changes in the cross-sectional area of the leg veins were highly diverse among patients with chronic venous disease and among healthy subjects and appear unsuitable for pathophysiologic characterization. In contrast, small saphenous vein viscoelasticity increased consistently in the standing position and the viscosity was greater in limbs with C3 and C5 CEAP disease than in controls.


Assuntos
Extremidade Inferior/irrigação sanguínea , Veias/fisiopatologia , Insuficiência Venosa/fisiopatologia , Pressão Venosa/fisiologia , Fenômenos Biomecânicos , Estudos de Casos e Controles , Doença Crônica , Elasticidade , Humanos , Veia Safena/diagnóstico por imagem , Veia Safena/fisiopatologia , Posição Ortostática , Decúbito Dorsal , Veias/diagnóstico por imagem
5.
Lymphat Res Biol ; 15(4): 364-370, 2017 12.
Artigo em Inglês | MEDLINE | ID: mdl-29252140

RESUMO

BACKGROUND: Lymphedema of the arm and/or hand is a well-established complication of breast cancer therapy. The objective of the study was to determine the interest of auto-adjustable MOBIDERM® Autofit night arm sleeve in controlling edema rebound effect in breast cancer-related lymphedema patients just after a successful intensive phase of decongestive lymphedema therapy (DLT). MATERIALS AND METHODS: This is a subgroup analysis of MARILYN Study, conducted on 40 patients after completion of intensive DLT. Patients were randomized in Night-user group (fitted with MOBIDERM Autofit device) or No night-user group (no night compression). For subgroups analysis, patients were defined as high responders (HR) if their lymphedema volume reduction during DLT was ≥35% or as low responders (LR) if it was below 35%. RESULTS: In HR subgroups (n = 16), the mean lymphedema volume variation between Day 0 and 30 was 28.4 mL in the night-user group versus 181.4 mL in the no night-user group. When adjusted to the loss of volume during DLT, 89% of the DLT benefit is maintained in HR night-user versus 54% in no night-user group. Between LR (24 patients), this mean volume variation was by 65.1 mL versus 54.9 mL in night-user and no night-user groups respectively between Day 0 and 30. CONCLUSION: Wearing MOBIDERM Autofit, on top of the day time hosiery, appears a promising way to control the early rebound effect during the maintenance phase especially in DLT-HR.


Assuntos
Linfedema/patologia , Linfedema/terapia , Roupa de Proteção , Idoso , Idoso de 80 Anos ou mais , Braço/patologia , Braço/fisiopatologia , Neoplasias da Mama/complicações , Feminino , Humanos , Linfedema/etiologia , Linfedema/fisiopatologia , Pessoa de Meia-Idade , Tamanho do Órgão
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...