RESUMO
BACKGROUND: This review article provides an updated review of a relatively common pathology with various manifestations. Superficial venous diseases (SVDs) are a broad spectrum of venous vascular disease that predominantly affects the body's lower extremities. The most serious manifestation of this disease includes varicose veins, chronic venous insufficiency, stasis dermatitis, venous ulcers, superficial venous thrombosis, reticular veins, and spider telangiectasias. METHODS: The anatomy, pathophysiology, and risk factors of SVD were discussed during this review. The risk factors for developing SVD were related to race, age, sex, lifestyle, and certain genetic conditions as well as comorbid deep vein thrombosis. Various classification systems were listed, focusing on the most common one-the revised Clinical-Etiology-Anatomy-Pathophysiology classification. The clinical features including history and physical examination findings elicited in SVD were outlined. RESULTS: Imaging modalities utilized in SVD were highlighted. Duplex ultrasound is the first line in evaluating SVD but magnetic resonance imaging and computed tomography venography, plethysmography, and conventional venography are feasible options in the event of an ambiguous venous duplex ultrasound study. Treatment options highlighted in this review ranged from conservative treatment with compression stockings, which could be primary or adjunctive to pharmacologic topical and systemic agents such as azelaic acid, diuretics, plant extracts, medical foods, nonsteroidal anti-inflammatory drugs, anticoagulants and skin substitutes for different stages of SVD. Interventional treatment modalities include thermal ablative techniques like radiofrequency ablationss, endovenous laser ablation, endovenous steam ablation, and endovenous microwave ablation as well as nonthermal strategies such as the Varithena (polidocanol microfoam) sclerotherapy, VenaSeal (cyanoacrylate) ablation, and Endovenous mechanochemical ablation. Surgical treatments are also available and include debridement, vein ligation, stripping, and skin grafting. CONCLUSIONS: SVDs are prevalent and have varied manifestations predominantly in the lower extremities. Several studies highlight the growing clinical and financial burden of these diseases. This review provides an update on the pathophysiology, classification, clinical features, and imaging findings as well as the conservative, pharmacological, and interventional treatment options indicated for different SVD pathologies. It aims to expedite the timely deployment of therapies geared toward reducing the significant morbidity associated with SVD especially varicose veins, venous ulcers, and venous insufficiency, to improve the quality of life of these patients and prevent complications.
Assuntos
Varizes , Humanos , Fatores de Risco , Resultado do Tratamento , Varizes/terapia , Varizes/fisiopatologia , Varizes/epidemiologia , Insuficiência Venosa/terapia , Insuficiência Venosa/fisiopatologia , Insuficiência Venosa/epidemiologia , Insuficiência Venosa/diagnóstico por imagem , Veias/fisiopatologia , Veias/diagnóstico por imagem , Valor Preditivo dos TestesRESUMO
BACKGROUND: There are various other collaterals draining into the venous system around the saphenofemoral junction in addition to the great saphenous vein. We aimed to determine the efficiency of prophylactic ablation of tributary veins in long term varicose vein and symptom recurrence. METHODS: Two hundred and sixty-three consecutive patients whom underwent radiofrequency ablation therapy for the treatment of superficial venous reflux disease were investigated. There were 129 patients who received isolated great saphenous vein ablation (Group A) where as 134 patients underwent ablation of the other tributary veins in addition to the great saphenous vein (Group B) between June 2015 and January 2017. The tributary superficial veins; refluxing and/or not refluxing, draining into the saphenofemoral junction were selectively catheterized and ablated in Group B. Patients are followed at least 1 year after the procedures regulary and researched for recurrence of varciose veins and symptoms. RESULTS: Gender, mean age, body mass index, diameter of the great saphenous veins, small saphenous vein disease, and grade of deep venous insufficiency did not differ significantly between the two groups. The mean number of tributary veins were similar in both groups (n: 1.9 ± 0.4 in Group A vs. n: 1.8 ± 0.7 in Group B) which were detected preoperatively as well as during the procedure. The mean number of ablated tributary venous pathways could be 1.4 ± 0.6 in Group B. During the follow up period symptoms related with varicose veins recurred in 19 patients in Group A where as in 7 patients in Group B (P < 0.05). Three of these symptomatic patients in Group B were the ones in whom the tributary pathways could not be catheterized ablated where as 14 patients in Group A were diagnosed with newly refluxing tributary pathways. All the symptomatic patients in both groups were managed medically and/or with additional interventions. CONCLUSION: The absence of any fascial unsheathing and the parietal weakness are suggestive of a lower resistance of the tributary veins wall, so collapse and size of veins make it more complex to catheterization regarding to great saphenous vein. Ablation of the tributary superficial venous pathways during the treatment of great saphenous vein reflux disease decreased the rate of recurrence of superficial venous reflux disease and patients symtoms in our modest cohort.
Assuntos
Circulação Colateral , Veia Femoral/cirurgia , Ablação por Radiofrequência , Veia Safena/cirurgia , Varizes/cirurgia , Insuficiência Venosa/cirurgia , Adulto , Doença Crônica , Feminino , Veia Femoral/diagnóstico por imagem , Veia Femoral/fisiopatologia , Humanos , Masculino , Pessoa de Meia-Idade , Ablação por Radiofrequência/efeitos adversos , Recidiva , Fluxo Sanguíneo Regional , Veia Safena/diagnóstico por imagem , Veia Safena/fisiopatologia , Fatores de Tempo , Resultado do Tratamento , Varizes/diagnóstico por imagem , Varizes/fisiopatologia , Insuficiência Venosa/diagnóstico por imagem , Insuficiência Venosa/fisiopatologiaRESUMO
OBJECTIVE: To describe the mid-term outcome after inferior selective crossectomy in a subset of patients with symptomatic chronic venous disease and both great saphenous vein and suprasaphenic valve incompetence.MethodsË Retrospective analysis of prospectively collected data was conducted. During an eight-year period, 1095 ligations of all saphenofemoral junction inferior tributaries and great saphenous vein stripping were performed in 814 Clinical, Etiology, Anatomy, Pathophysiology C2-C6 patients. Duplex ultrasound follow-up examinations were performed after 30 days, 6 months, and 2 years, and saphenofemoral junction hemodynamic patterns and varicose veins recurrence rates were evaluated. RESULTS: Two hundred and twenty patients completed the two-year follow-up period. At the 30-day Duplex ultrasound evaluations, two different hemodynamic patterns were described. Type 1, with physiological drainage of saphenofemoral junction superior tributaries, was observed in 214 patients. Type 2, without flow in saphenofemoral junction superior tributaries, was observed in six patients. Overall varicose vein recurrence rates were 0, 2.3, and 2.7% at the 30-day, 6-month, and 2-year follow-up examinations, respectively. At the two-year follow-up, Type 1 patients showed 0% varicose vein recurrence, while Type 2 patients showed 100%.ConclusionsË Inferior selective crossectomy seems to be a valid and safe option in case of both suprasaphenic valve and great saphenous vein incompetence. Duplex ultrasound evaluation, according to our protocol, allows us to identify two different saphenofemoral junction hemodynamic patterns that could predict varicose vein recurrence at mid-term. An optimal stump washing after inferior selective crossectomy, warranted by patency and large caliber saphenofemoral junction superior tributaries, seems to be the key point in preventing varicose vein recurrence in this context. However, large prospective studies regarding saphenofemoral junction modifications and varicose vein recurrence are needed to confirm these preliminary observations.
Assuntos
Veia Safena/cirurgia , Varizes/cirurgia , Procedimentos Cirúrgicos Vasculares , Insuficiência Venosa/cirurgia , Adulto , Idoso , Feminino , Hemodinâmica , Humanos , Ligadura , Masculino , Pessoa de Meia-Idade , Recidiva , Estudos Retrospectivos , Veia Safena/diagnóstico por imagem , Veia Safena/fisiopatologia , Fatores de Tempo , Resultado do Tratamento , Ultrassonografia Doppler Dupla , Varizes/diagnóstico por imagem , Varizes/fisiopatologia , Procedimentos Cirúrgicos Vasculares/efeitos adversos , Insuficiência Venosa/diagnóstico por imagem , Insuficiência Venosa/fisiopatologiaRESUMO
OBJECTIVES: We aimed to evaluate peripheral varicose vein symptoms including ecchymosis and coldness by using the Venous Insufficiency Epidemiological and Economic Study-Quality of Life/Symptoms (VEINES-QoL/Sym) questionnaire. METHODS: A total of 1120 patients were enrolled to the analysis after the exclusion of 199 patients who did not match the inclusion criteria. Patients were asked to answer the VEINES-Sym questionnaire and questions about ecchymosis and coldness. Scores of ecchymosis and coldness were calculated similar to VEINES-Sym questionnaire. Classifications of peripheral varicose vein were made according to the clinical part of clinical, etiological, anatomical, and pathophysiological classification system and patients with grade 2 or higher were considered as positive for peripheral varicose vein. RESULTS: Frequency of symptoms present in the VEINES-Sym instrument, ecchymosis and coldness were significantly higher in patients with peripheral varicose vein. Mean score of each symptom was significantly lower in peripheral varicose vein patients including scores of ecchymosis and coldness. Logistic regression analysis revealed that presence of hemorrhoids and all symptoms in VEINES-Sym questionnaire except restless leg were significantly and independently associated with peripheral varicose vein. Besides, ecchymosis (odds ratio: 2.04, 95% confidence interval: 1.34-3.08, p = 0.008) but not coldness was significantly and independently associated with peripheral varicose vein. There was also significant correlation of VEINES-Sym score with ecchymosis (r = 0.43, p < 0.001) and coldness (r = 0.47, p < 0.001). CONCLUSIONS: Venous leg symptoms present in VEINES-Sym questionnaire except restless legs, presence of hemorrhoids and ecchymosis are significantly and independently associated with peripheral varicose vein. Not only ecchymosis but also coldness has shown an independent association with total VEINES-Sym score.
Assuntos
Regulação da Temperatura Corporal , Equimose/etiologia , Extremidade Inferior/irrigação sanguínea , Inquéritos e Questionários , Varizes/diagnóstico , Veias/fisiopatologia , Insuficiência Venosa/diagnóstico , Adulto , Feminino , Hemorroidas/diagnóstico , Hemorroidas/etiologia , Humanos , Masculino , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Reprodutibilidade dos Testes , Síndrome das Pernas Inquietas/diagnóstico , Síndrome das Pernas Inquietas/etiologia , Medição de Risco , Fatores de Risco , Turquia , Varizes/complicações , Varizes/fisiopatologia , Insuficiência Venosa/complicações , Insuficiência Venosa/fisiopatologiaRESUMO
OBJECTIVE: To clarify the role of clinical anatomy of foot and ankle perforator veins (PV) in surgical treatment of varicose vein disease. MATERIAL AND METHODS: Anatomy of foot and ankle PV was assessed in 50 amputated lower extremities by anatomical dissection. RESULTS: There were 4-6 PVs at the medial surface of the foot. These veins connected medial marginal vein and vv. plantaris medialis (VPM). There were 2-3 PVs at the lateral surface of the foot. These veins connected lateral marginal vein and vv. plantaris lateralis (VPL). All PVs on the lateral surface of the foot constitute the neurovascular bundles. PVs flowing into vv. dorsalis pedis are localized on the medial surface of the medial marginal vein at the level of the ankle base. In most cases, we found an arterial branch nearby at the subfascial level. In anterior part of the plantar surface of the foot, we distinguished 4-5 small PVs (~1 mm) flowing into vv. digitales plantares through the commissural orifices of the aponeurosis. There were 6-9 vessels (~1 mm) along the fascial aponeurotic septa. These vessels connected superficial plantar venous network and plantar veins. Small arterial branch was found almost in all cases near these veins. Noteworthy is the area where the plantar veins lie on the quadratus plantae and are covered by a leaf of deep plantar fascia. This anatomy is similar to topography of posterior tibial veins. CONCLUSION: Foot perforator veins constitute the neurovascular bundles as a rule. Plantar vein topography and their relationship with PV confirm an existence of muscular-venous pump of the foot.
Assuntos
Tornozelo/irrigação sanguínea , Aponeurose , Pé/irrigação sanguínea , Fluxo Sanguíneo Regional/fisiologia , Veia Safena/anatomia & histologia , Varizes , Tornozelo/fisiopatologia , Aponeurose/irrigação sanguínea , Dissecação , Veia Femoral/anatomia & histologia , Veia Femoral/fisiopatologia , Pé/fisiopatologia , Humanos , Veia Safena/fisiopatologia , Varizes/diagnóstico , Varizes/fisiopatologia , Varizes/cirurgiaRESUMO
High pressure in the lower-limb veins is often associated with chronic venous insufficiency and varicose veins (VVs), making it important to search for the mechanisms and agents that control venous function. We have shown that protracted increases in venous stretch/wall tension reduce vein contraction and augment matrix metalloproteinase (MMP)-2 and -9. Also, MMP-2 and MMP-9 promote venodilation, a hallmark of VVs. Sulodexide (SDX) is a blend of glycosaminoglycans with efficient profibrinolysis and antithrombosis activities, but its actions on vein function and the mechanisms involved are unclear. We tested the hypothesis that SDX enhances venous contractile response by decreasing MMP expression/activity in veins subjected to protracted stretch. Rat inferior vena cava (IVC) rings were treated with SDX (0.001-1 mg/mL) or vehicle, equilibrated under control 0.5-g resting tension or protracted 2-g stretch for 18 hours, and the contractile response to 96-mM KCl and phenylephrine (Phe) in SDX-treated and nontreated veins was recorded. In IVC rings under control 0.5-g resting tension, SDX caused dose-dependent contraction, 96-mM KCl caused marked contraction (176-mg/mg tissue), and Phe caused dose-dependent contraction with a maximum (56-mg/mg tissue) at 10 M. In IVC subjected to protracted 2-g stretch, 96-mM KCl-induced contraction was reduced to 112 mg/mg and maximal Phe-induced contraction was decreased to 23 mg/mg. In IVC subjected to protracted 2-g stretch plus SDX, 96-mM KCl-induced contraction was restored to 228 mg/mg and maximal Phe-induced contraction was improved to 115 mg/mg. Gelatin zymography and Western blots revealed increases in MMP-2 and MMP-9 levels/gelatinolytic activity in veins subjected to protracted 2-g stretch and reversal to control levels in veins subjected to 2-g stretch plus SDX. Thus, SDX improves vein function and augments the contractile response in veins subjected to protracted stretch. The SDX-induced improvement of contraction and restoration of vein function appear to involve decreases in MMP-2 and MMP-9 and may contribute to the benefits of SDX in chronic venous insufficiency and VVs.
Assuntos
Glicosaminoglicanos/farmacologia , Metaloproteinase 2 da Matriz/metabolismo , Metaloproteinase 9 da Matriz/metabolismo , Varizes/tratamento farmacológico , Vasoconstrição/efeitos dos fármacos , Vasoconstritores/farmacologia , Veia Cava Inferior/efeitos dos fármacos , Insuficiência Venosa/tratamento farmacológico , Animais , Regulação para Baixo , Técnicas In Vitro , Masculino , Proteólise , Ratos Sprague-Dawley , Varizes/enzimologia , Varizes/fisiopatologia , Veia Cava Inferior/enzimologia , Veia Cava Inferior/fisiopatologia , Insuficiência Venosa/enzimologia , Insuficiência Venosa/fisiopatologiaRESUMO
Fibronectin (FN) circulating in the blood and produced by cells provides the basis of the extracellular matrix (ECM) formed in healing acute wounds. The time-dependent deposition of FN by macrophages, its synthesis by fibroblasts and myofibroblasts, and later degradation in the remodeled granulation tissue are a prerequisite for successful healing of wounds. However, the pattern of FN expression and deposition in skin lesions is disturbed. The degradation of the ECM components including FN in varicose veins prevails over ECM synthesis and deposition. FN is inconspicuous in the fibrotic lesions in lipodermatosclerosis, while tenascin-C containing FN-like peptide sequences are prominent. FN is produced in large amounts by fibroblasts at the edge of venous ulcers but FN deposition at the wound bed is impaired. Both the proteolytic environment in the wounds and the changed function of the ulcer fibroblasts may be responsible for the poor healing of venous ulcers. The aim of this review is to describe the current knowledge of FN pathophysiology in chronic venous diseases. In view of the fact that FN plays a crucial role in organizing the ECM, further research focused on FN metabolism in venous diseases may bring results applicable to the treatment of the diseases.
Assuntos
Fibronectinas/metabolismo , Varizes/metabolismo , Veias/metabolismo , Insuficiência Venosa/metabolismo , Animais , Doença Crônica , Dermatite/metabolismo , Dermatite/patologia , Humanos , Esclerodermia Localizada/metabolismo , Esclerodermia Localizada/patologia , Transdução de Sinais , Varizes/patologia , Varizes/fisiopatologia , Veias/patologia , Veias/fisiopatologia , Insuficiência Venosa/patologia , Insuficiência Venosa/fisiopatologiaRESUMO
BACKGROUND: Pelvic congestion syndrome (PCS) is defined as noncyclical pelvic pain or discomfort caused by dilated parauterine, paraovarian, and vaginal veins. PCS is typically characterized by ovarian venous incompetence that may be due to pelvic venous valvular insufficiency, hormonal factors, or mechanical venous obstruction. METHODS: We describe a case of a 38-year-old multiparous female with a history of pelvic pressure, vulvar varices, and dyspareunia. She underwent left gonadal vein coil embolization in 2014 for PCS that lead to symptomatic relief of her pain. Four years later, the patient returned for recurrent symptoms. Magnetic resonance venogram demonstrated dilated pelvic varices. The previously embolized left gonadal vein remained thrombosed, and there was no evidence of right gonadal vein insufficiency. However, catheter-based venography revealed a large, dilated, and incompetent median sacral vein. RESULTS: Pelvic venography demonstrated left gonadal vein embolization without any evidence of reflux. The right gonadal vein was also nondilated without reflux. Internal iliac venography showed large cross-pelvic collaterals and retrograde flow via a large, dilated median sacral vein. Coil embolization of the median sacral vein resulted in a dramatic reduction of pelvic venous reflux and resolution of symptoms. CONCLUSIONS: Recurrence of PCS can occur after ovarian vein embolization through other tributaries in the venous network. The median sacral vein is a rare cause of PCS. We present an interesting case of a successfully treated recurrent PCS with coil embolization of an incompetent median sacral vein.
Assuntos
Embolização Terapêutica , Ovário/irrigação sanguínea , Dor Pélvica/terapia , Pelve/irrigação sanguínea , Varizes/terapia , Insuficiência Venosa/terapia , Adulto , Embolização Terapêutica/instrumentação , Feminino , Humanos , Dor Pélvica/diagnóstico por imagem , Dor Pélvica/fisiopatologia , Recidiva , Retratamento , Síndrome , Resultado do Tratamento , Varizes/diagnóstico por imagem , Varizes/fisiopatologia , Insuficiência Venosa/diagnóstico por imagem , Insuficiência Venosa/fisiopatologiaRESUMO
PURPOSE: To review control mechanisms for blood flow in the choroid, propose a system by which venous outflow is controlled by a Starling resistor, and propose an explanation for the choroidal venous architectural anatomy. METHODS: The main blood flow control mechanisms were reviewed including autoregulation, neurovascular coupling, and myogenic regulation. Applicable blood flow control mechanisms in the brain, a high flow organ in a low compliance outer shell, were used to examine analogous processes that may be occurring in the choroid. RESULTS: There does not seem to be effective autoregulation in the choroid, although myogenic mechanisms may be present. There is a sophisticated neural innervation that provides partial control. Like the brain, the eye has a high pulsatile blood flow rate and is encased in a noncompliant casing. As part of modulating pulsatile pressure in the cranium, the brain uses venous storage and a Starling resistor effect to modulate venous outflow. An analogous function in the eye could be provided by the choroid, which contains fascicles of large veins that converge in vortices to drain out of the eye. This vortex area seems to be where the Starling resistor effect is possible. This mechanism would have important impact on theories of many ocular diseases including central serous chorioretinopathy and spaceflight-associated neuroocular syndrome. CONCLUSION: Control of blood flow is critical in the choroid, and this control seems to extend to the venous outflow system. Abnormalities in venous outflow may critically affect function in predictable pathogenic mechanisms.
Assuntos
Corioide/irrigação sanguínea , Fluxo Sanguíneo Regional/fisiologia , Varizes/fisiopatologia , Humanos , Veias/anatomia & histologiaRESUMO
Purpose: To report the use of directional atherectomy to treat venous in-stent restenosis (ISR) and subsequent histopathological analysis of retrieved intrastent tissue. Case Report: A 55-year-old man presented with recurrent symptoms of venous congestion following iliofemoral stenting. The stents were found to be occluded on imaging. Directional atherectomy was used to recanalize the iliofemoral venous stents, which provided significant symptom relief. Tissue retrieved from within the stent demonstrated patterns of cellular components similar to arterial ISR. At 6-month follow-up, the stents remain patent, with no evidence of further ISR. Conclusion: Directional atherectomy is a potential treatment option for iliofemoral venous ISR. The pathological process of venous ISR demonstrates cellular changes similar to arterial ISR.
Assuntos
Angioplastia com Balão/instrumentação , Aterectomia , Veia Femoral/patologia , Oclusão de Enxerto Vascular/terapia , Veia Ilíaca/patologia , Veia Safena/cirurgia , Stents , Varizes/cirurgia , Enxerto Vascular/efeitos adversos , Insuficiência Venosa/cirurgia , Idoso , Angioplastia com Balão/efeitos adversos , Circulação Colateral , Veia Femoral/fisiopatologia , Oclusão de Enxerto Vascular/diagnóstico por imagem , Oclusão de Enxerto Vascular/fisiopatologia , Humanos , Veia Ilíaca/fisiopatologia , Masculino , Recidiva , Fluxo Sanguíneo Regional , Retratamento , Veia Safena/diagnóstico por imagem , Veia Safena/fisiopatologia , Resultado do Tratamento , Varizes/fisiopatologia , Grau de Desobstrução Vascular , Insuficiência Venosa/fisiopatologiaRESUMO
Pelvic venous disorders (PeVDs) in women can present with chronic pelvic pain, lower-extremity and vulvar varicosities, lower-extremity swelling and pain, and left-flank pain and hematuria. Multiple evidence gaps exist related to PeVDs with the consequence that nonvascular specialists rarely consider the diagnosis. Recognizing this, the Society of Interventional Radiology Foundation funded a Research Consensus Panel to prioritize a research agenda to address these gaps. This paper presents the proceedings and recommendations from that Panel.
Assuntos
Pesquisa Biomédica , Dor Crônica , Ginecologia , Extremidade Inferior/irrigação sanguínea , Dor Pélvica , Pelve/irrigação sanguínea , Varizes , Vulva/irrigação sanguínea , Dor Crônica/diagnóstico , Dor Crônica/fisiopatologia , Dor Crônica/terapia , Consenso , Feminino , Humanos , Dor Pélvica/diagnóstico , Dor Pélvica/fisiopatologia , Dor Pélvica/terapia , Valor Preditivo dos Testes , Prognóstico , Fluxo Sanguíneo Regional , Varizes/diagnóstico , Varizes/fisiopatologia , Varizes/terapiaRESUMO
OBJECTIVES: Reflux assessment with ultrasound (U/S) is usually qualitative. Quantitative measurements of superficial venous insufficiency (SVI) include the venous arterial flow index (VAFI), recirculation index (RCI), venous filling index (VFI), and the postural diameter change (PDC) of the saphenous trunk. The aim was to investigate their relationship. MATERIALS AND METHODS: This was an observational study performed on patients with varicose veins and hospital employees. Four haemodynamic parameters were measured in 21 legs from 16 subjects. Legs were divided into no reflux (n = 7) and reflux (n = 14). The VAFI is the U/S ratio of common femoral vein volume flow divided by the common femoral artery volume flow, performed supine. The RCI is the U/S ratio of reflux volume over antegrade volume within the saphenous trunk after calf compression, standing. The VFI is the rate of calf volume increase on dependency measured in mL/s, using air plethysmography. The PDC is the percentage reduction of the saphenous trunk diameter from standing to lying, using U/S. RESULTS: The clinical part of the CEAP classification was: C0 = 3, C1 = 4, C2 = 5, C3 = 1, C4a = 1, C4b = 6, C5 = 1. All four tests demonstrated significant differences between the two groups with minimal overlap (Mann Whitney U test): VAFI (p = .028), RCI (p < .0005), VFI (p = .001), and PDC (p = .014). Furthermore, significant correlations were observed with the tests: VAFI vs. RCI (r = .532, p = .015), VFI (r = .489, p = .025) and PDC (r = -.474, p = .030); RCI vs. VFI (r = .446, p = .043) and PDC (r = -.527, p = .014). CONCLUSIONS: Superficial venous drainage insufficiency should not be confined to an U/S assessment of the presence of reflux, which is qualitative. Quantitative data may be provided using the VAFI, RCI, VFI, and PDC. Understanding why there are significant correlations among these parameters and the preferred objective reference test requires further work.
Assuntos
Hemodinâmica , Pletismografia , Veia Safena/diagnóstico por imagem , Ultrassonografia/métodos , Varizes/diagnóstico por imagem , Insuficiência Venosa/diagnóstico por imagem , Adulto , Idoso , Estudos de Casos e Controles , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Reprodutibilidade dos Testes , Veia Safena/fisiopatologia , Índice de Gravidade de Doença , Varizes/fisiopatologia , Insuficiência Venosa/fisiopatologiaRESUMO
Portal vein thrombosis (PVT) is commonly encountered during liver transplantation (LT). Depending on the grade of thrombosis, varied management strategies are indicated. The aims of this study are to clarify the contemporary role of renoportal anastomosis (RPA) in patients with splanchnic vein thrombosis (SVT) undergoing LT and to systematically analyze all reported cases of RPA. A systematic literature search was performed according to Preferred Reporting Items for Systematic Reviews and Meta- Analyses statement guidelines. The study was limited to studies reported in English between January 1997 and May 2017. Only retrospective single center studies were included in the analysis. A total of 66 patients with SVT were reported to have undergone RPA during LT. Transient renal dysfunction was reported in 12 patients (18.1%), variceal hemorrhage in 2 patients (3%), early portal vein (PV) re-thrombosis in 2 patients (3%), chronic renal dysfunction in 2 patients (3%), and late PV re-thrombosis in 1 patient (1.5%). The overall patient and graft survival were each 80%. This analysis illustrates the decades-long evolution of a technique practiced across the field of transplantation. Postoperative complications and graft survival appear to be encouraging, even in the setting of SVT.
Assuntos
Anastomose Cirúrgica/efeitos adversos , Anastomose Cirúrgica/métodos , Doença Hepática Terminal/cirurgia , Transplante de Fígado/métodos , Veia Porta/patologia , Trombose Venosa/cirurgia , Adolescente , Adulto , Doença Hepática Terminal/complicações , Doença Hepática Terminal/mortalidade , Varizes Esofágicas e Gástricas , Feminino , Sobrevivência de Enxerto , Hemorragia/complicações , Humanos , Falência Renal Crônica/complicações , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias , Estudos Retrospectivos , Circulação Esplâncnica , Trombose , Resultado do Tratamento , Varizes/fisiopatologia , Procedimentos Cirúrgicos Vasculares/métodos , Listas de Espera , Adulto JovemRESUMO
In the past 2 decades, varicose veins surgery went through a great turbulence and various innovations. A number of new techniques have been introduced with a goal to increase the success rate, reduce the periprocedural complications and, overall, to improve patients' quality of life. The latest of them, named cyanoacrylate embolization (CAE) technique, threatens to shake the glory of the currently well-established endovenous methods. We have analyzed all previous studies by searching MEDLINE base using PubMed. Although the idea of using n-butyl cyanoacrylate (NBCA) glue in medical purposes was not new, the very first in vivo and animal experiments using NBCA for vein closure were conducted just at the beginning of this millennium. The results of these studies gave warranty to begin with the first interventions in humans. Early studies reported very high success rates of more than 90%, with the longest follow-up period of 36 months. There were no major adverse events reported, while the minor ones-mostly phlebitic reactions-were defined as mild to moderate. The newest head-to-head studies showed that CAE is a noninferior technique to other endovenous methods, with higher occlusion rates and fewer adverse events. Short procedure time and no need for tumescent anesthesia or compressive stockings reduce patients' discomfort to the minimum and definitely seem to be a step forward answering the modern "walk in-walk out surgery" demands. As an easily handling technique, CAE undoubtedly pierces its path to the top of varicose veins surgery but more head-to-head clinical trials with longer follow-up periods are necessary to obtain a plain picture.
Assuntos
Cianoacrilatos/administração & dosagem , Embolização Terapêutica/métodos , Varizes/terapia , Embolização Terapêutica/efeitos adversos , Humanos , Fatores de Risco , Resultado do Tratamento , Varizes/diagnóstico por imagem , Varizes/fisiopatologiaRESUMO
Pulsating varicose veins are a rare clinical finding and are mainly derived from tricuspid regurgitation or right heart failure. The precise causes and optimal treatment of this phenomenon have been poorly recorded in the literature. Here, we describe a 56-year-old woman who presented to our medical center with bilateral varicose veins, heaviness, and edema in her lower limbs. The duplex revealed an arterial-like pulsating flow in the superficial and deep veins of the lower extremities, in addition to severe tricuspid regurgitation. Symptoms improved after the patient was given compression therapy using elastic stockings. In this article, we also review six other cases from the literature and discuss the therapies that would be reasonable in some conditions.
Assuntos
Extremidade Inferior/irrigação sanguínea , Insuficiência da Valva Tricúspide/complicações , Varizes/etiologia , Feminino , Humanos , Pessoa de Meia-Idade , Fluxo Pulsátil , Fluxo Sanguíneo Regional , Índice de Gravidade de Doença , Meias de Compressão , Resultado do Tratamento , Insuficiência da Valva Tricúspide/diagnóstico por imagem , Insuficiência da Valva Tricúspide/fisiopatologia , Varizes/diagnóstico por imagem , Varizes/fisiopatologia , Varizes/terapiaRESUMO
BACKGROUND: The anatomical etiology of right iliac vein compression syndrome (RIVCS) differs from that of left iliac vein compression syndrome. This study aimed to investigate the clinical features and therapeutic characteristics of RIVCS. METHODS: Sixteen patients with nonthrombotic RIVCS were admitted to our hospital from May 2013 to July 2017. All patients underwent computed tomography venography (CTV) examinations of the right lower limb, which indicated that the right iliac veins were compressed by extrinsic structures. RIVCS was divided into 3 types according to the CTV findings. Stenting was conducted in patients with the appropriate indications. The superficial varicose veins in the lower limbs were simultaneously treated during endovascular treatment in a compound operating room. Antiplatelet therapy was administered after discharge. RESULTS: Most RIVCS cases were types II and III, and the most frequently compressed segments were the middle and distal parts of the iliac vein. Most stents did not require stretching into the inferior vena cava and therefore seldom affected contralateral blood flow. Fifteen patients required stenting; the diameters of the stents ranged from 10 to 16 mm. All symptoms were alleviated, and the ulcers healed postoperatively. The remaining single patient with superficial varicose veins did not have an indication for endovascular therapy. During follow-up, all patients were symptom free, and the stents showed excellent patency. CONCLUSIONS: CTV is a simple, accurate, and important method for diagnosing RIVCS. Endovascular therapy is an effective therapeutic method for RIVCS. Compared with the left side, stent implantation for RIVCS is safer and has fewer effects on contralateral blood flow.
Assuntos
Angioplastia com Balão , Angiografia por Tomografia Computadorizada , Veia Ilíaca/diagnóstico por imagem , Síndrome de May-Thurner/diagnóstico por imagem , Síndrome de May-Thurner/terapia , Flebografia/métodos , Inibidores da Agregação Plaquetária/administração & dosagem , Idoso , Angioplastia com Balão/efeitos adversos , Angioplastia com Balão/instrumentação , Constrição Patológica , Feminino , Humanos , Veia Ilíaca/fisiopatologia , Masculino , Síndrome de May-Thurner/fisiopatologia , Pessoa de Meia-Idade , Inibidores da Agregação Plaquetária/efeitos adversos , Valor Preditivo dos Testes , Stents , Resultado do Tratamento , Varizes/diagnóstico por imagem , Varizes/fisiopatologia , Varizes/terapia , Grau de Desobstrução Vascular , CicatrizaçãoRESUMO
BACKGROUND: The procedure aims to show our results with a novel nontumescent, nonthermal technique to treat varicose veins. The V-block occlusion stent is a minimally invasive device for treating reflux of the great saphenous vein (GSV). It is an office-based procedure that does not require tumescence anesthesia. The V-block stent is a self-expandable device that functions as a vein occluder and blood clot trap. Once the V-block is in place, further treatment of the saphenous vein such as ultrasound-guided sclerotherapy can be performed. The V-block device is intended to eliminate the possibility of forwarding passage of clot and sclerosant (embolization) to the deep and pulmonary circulations. METHODS: Patients were treated in an outpatient setting with the V-block occluding device. Follow-up was performed using duplex ultrasound to assess occlusion of the saphenous vein as well as the Aberdeen Varicose Vein Questionnaire and Venous Severity Scoring to determine changes in quality of life after the procedure. Patients were followed up at 1 week, 1 month, and 3 months after V-block placement. Duplex scanning was performed to confirm GSV occlusion at all follow-up visits. After deployment of the occlusion stent, a maximum of 2% polidocanol foam was injected with a double barrel syringe which simultaneously evacuated blood from the greater saphenous vein. Follow-up assessment for safety included evaluation of potential complications, device migration, and potential injury at the deployment site. RESULTS: Fifty-one symptomatic subjects with documented GSV reflux were enrolled in the study. Complete occlusion of the GSV was achieved in 98% of the patients during the 7-day postprocedural visit. There was no injury at the deployment site. No migration of the V-block device was observed. No deep vein thrombosis or any other complication was recorded. One patient of the 50 patients and 51 procedures experienced an adverse event, phlebitis that resolved under conservative therapy within 4 days with no residual effect. There was a significant improvement in the Aberdeen Vein quality of life measurements and the pain scores. After 3 years, 18 patients were willing to undergo a duplex follow-up examination. The occlusion rate after 3 years was 77.8. There were no device-related complications after this period. CONCLUSIONS: The study demonstrated a good safety and performance profile without any major adverse events. The primary end point of vein occlusion and obliteration was met.
Assuntos
Procedimentos Endovasculares/instrumentação , Polidocanol/administração & dosagem , Veia Safena , Soluções Esclerosantes/administração & dosagem , Escleroterapia/instrumentação , Stents , Varizes/terapia , Idoso , Procedimentos Endovasculares/efeitos adversos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Polidocanol/efeitos adversos , Desenho de Prótese , Qualidade de Vida , Estudos Retrospectivos , Veia Safena/diagnóstico por imagem , Veia Safena/fisiopatologia , Soluções Esclerosantes/efeitos adversos , Escleroterapia/efeitos adversos , Inquéritos e Questionários , Fatores de Tempo , Resultado do Tratamento , Ultrassonografia Doppler Dupla , Ultrassonografia de Intervenção , Varizes/diagnóstico por imagem , Varizes/fisiopatologiaRESUMO
AIM: To identify the symptoms and quality of life impacts that are important from the perspective of patients with varicose veins and to compare identified themes to items in varicose vein patient-reported outcome measures (PROMs). BACKGROUND: Varicose veins are common worldwide and are considered a chronic condition with implications for quality of life. Treatment is predominantly conservative; therefore, understanding patients' experiences of living with varicose veins is important to inform the provision of clinical care. PROMs are often used to collect data about patients' quality of life. DESIGN: Thematic synthesis of qualitative research reported according to ENTREQ guidelines. METHODS: Multiple electronic databases, including MEDLINE and CINAHL, were systematically searched to identify qualitative research examining experiences of adults with varicose veins. Thematic synthesis was then conducted on the included studies. RESULTS: Three studies met the inclusion criteria; the quality of the studies was high. The range and intensity of reported symptoms and participant's experiences of living with varicose veins were varied. Five overarching themes were identified: physical, psychological and social impact of varicose veins, adapting to varicose veins and reasons for seeking treatment. The overall key theme to emerge was adaptation, with patients demonstrating how they adapted to the various impacts. CONCLUSION: This review demonstrates that varicose veins have a wide range of symptoms and may have a significant impact on quality of life; people made significant adaptations to enable them to live their lives as fully as possible. RELEVANCE TO CLINICAL PRACTICE: Healthcare professionals need to be aware of the range of symptoms and their impact on quality of life. The use of PROMs to gather information about quality of life and symptoms is well established globally; however, PROMs currently used may not capture the full extent of the impact on patient's quality of life.
Assuntos
Adaptação Psicológica , Medidas de Resultados Relatados pelo Paciente , Qualidade de Vida , Varizes/psicologia , Adulto , Doença Crônica , Feminino , Humanos , Masculino , Pesquisa Qualitativa , Varizes/fisiopatologiaRESUMO
Diosmin is a natural compound with a wide range of biological activity, e.g., it improves lymphatic drainage, supports microcirculation, and increases venous tone, and venous elasticity, hence, it is applied in the pharmacotherapy of chronic venous disorders (CVD). The aim of this study was to assess the correlation between diosmin administration (2 × 600 mg daily) in patients suffering from CVD and the levels of selected factors influencing angiogenesis, which are involved in CVD pathophysiology. Thirty-five CVD patients were examined. Levels of plasma tumor necrosis factor alpha (TNF alpha), vascular endothelial growth factor (VEGF-A and VEGF-C); angiostatin, interleukin 6 (IL-6), fibroblast growth factor 2 (FGF2); and plasminogen (PLG) were measured with an Elisa assay before and after three months of diosmin administration. The clinical symptoms of CVD were monitored using ultrasound images, echo Doppler assay, visual analogue scale (VAS), and measurement of the leg circumference. The average content of TNF alpha, VEGF-C, VEGF-A IL-6, and FGF2 decreased after the therapy with diosmin in a significant manner; with p < 0.001, p < 0.05, p < 0.05, p < 0.01, and p < 0.01, respectively, and a significant (p < 0.05) increase in the plasma angiostatin level after the three-month treatment was found. A significant (p < 0.05) decrease in edema and the average leg circumference of the patients was observed after the therapy. Diosmin influences the angiogenic and inflammatory mechanisms involved in the pathophysiology of edema presented in patients with a different class of CVD.
Assuntos
Diosmina/farmacologia , Neovascularização Fisiológica/efeitos dos fármacos , Doenças Vasculares/tratamento farmacológico , Adulto , Angiostatinas/sangue , Doença Crônica , Feminino , Fator 2 de Crescimento de Fibroblastos/sangue , Humanos , Interleucina-6/sangue , Masculino , Pessoa de Meia-Idade , Neovascularização Fisiológica/fisiologia , Resultado do Tratamento , Fator de Necrose Tumoral alfa/sangue , Ultrassonografia Doppler , Varizes/diagnóstico por imagem , Varizes/tratamento farmacológico , Varizes/fisiopatologia , Doenças Vasculares/sangue , Doenças Vasculares/diagnóstico por imagem , Fator A de Crescimento do Endotélio Vascular/sangue , Fator C de Crescimento do Endotélio Vascular/sangue , Veias/diagnóstico por imagem , Veias/fisiopatologiaRESUMO
Background: Chronic Venous Disorders or Diseases (CVD) of the lower extremities are a common finding affecting almost 90 % of an adult population. CVD includes varicose veins with a prevalence of approx. 25 %, overlapping with Chronic Venous Insufficiency (CVI) with a prevalence of approx. 17% in the adult population. CVI is characterized by venous pathology and objective signs like edema, skin changes or venous leg ulcers. Objective: To review and evaluate non-clinical and clinical data on a standardised herbal product containing flavonoids (AS195; Antistax®) and to put them into a perspective with the pathophysiology of CVD. Methods: Literature available on non-clinical pharmacology and clinical studies with AS195 in CVI of the lower extremities was reviewed and described. Conclusion: Antistax® is a well-described herbal product with standardised starting materials and manufacturing process. Its active ingredients accumulate in the venous intima, preserve the endothelial barrier function, and inhibit the inflammatory and prothrombotic cascade behind the progression of CVD. Its efficacy was analysed in adequately planned and executed clinical trials in patients with mild to moderately severe CVD (CEAP C1s to C4). AS195 showed a statistically significant and clinically relevant efficacy over placebo: in objective endpoints like volumetry of lower leg edema, but also in outcomes directly relevant for patients like tension and heaviness of the legs, tingling, and pain. Supportive studies confirmed and validated these results also for the broader population treated in daily practice. AS195 was well tolerated in studies and in everyday therapy. There are no known interactions with other medications. In the later stages, it can be used in combination with compression, complementing the beneficial haemodynamic effects of compression at a cellular level. AS195 is an addition to compression and closes a therapeutic gap especially in patients, who cannot use compression stockings, but still require CVD therapy.