digital photoplethysmography

  • 文章类型: Journal Article
    背景:对于有静脉内消融指征的慢性静脉功能不全患者,静脉内消融可能并不总是必要的。这项研究调查了压力袜和Daflon®对于某些患有慢性静脉功能不全的CEAP2患者是否同样有效。
    方法:在本研究中,137例有腔内消融指征的患者接受了体积描记血流动力学测试,并分为两组。第1组的静脉血流动力学正常,并接受了压迫袜和Daflon®。第2组功能异常,接受激光消融。6个月后对所有患者进行重新评估。
    结果:研究表明,在治疗后第6个月的测量中,第1组和第2组之间没有统计学上的显着差异。
    结论:因此,我们认为这样做不合适,也不建议每位有慢性静脉功能不全主诉且有腔内消融指征的患者在不评估下肢静脉血流动力学的情况下接受消融治疗.
    BACKGROUND: Endovenous ablation may not always be necessary for every patient with chronic venous insufficiency who has an indication for endovenous ablation. This study investigates whether compression stockings and Daflon® can be as effective for some patients with CEAP two in chronic venous insufficiency.
    METHODS: In this study, 137 patients who had endovenous ablation indication received plethysmographical hemodynamic tests and were divided into two groups. Group 1 had normal venous hemodynamics and received compression stockings and Daflon®. Group 2 had abnormal function and received laser ablation. All patients were reevaluated after 6 months.
    RESULTS: The study showed that there was no statistically significant difference between Groups 1 and 2 in the 6th month measurements after the treatments.
    CONCLUSIONS: As a result, we do not find it appropriate and do not recommend that every patient with complaints of chronic venous insufficiency and an indication for endovenous ablation undergo ablation without evaluating lower extremity venous hemodynamics.
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  • 文章类型: Journal Article
    OBJECTIVE: Chronic Venous Insufficiency (CVI) presents a various clinical symptoms and treatment options. Although it is generally known which treatment option is more appropriate in which situations in CVI, it is even more difficult to find the right option in some uncertain situations. In this study, we aimed to evaluate the potential contribution of Digital Photoplethysmography (D-PPG) in the diagnosis of CVI and especially in the selection of treatment options.
    METHODS: This retrospective study was conducted at Bursa Heart and Arrhythmia Hospital, involving 721 consecutive patients diagnosed with CVI and with Endovenous Laser Ablation (EVLA) indication. The patients were divided into 2 groups according to the extent of the failure in Doppler USG. In Group 1, the insufficiency ended above the knee, and in Group 2, the insufficiency progressed to below the knee. Patients were evaluated based on anamnesis, physical examination, Doppler USG, and D-PPG. Clinical classification, Venous Clinic Severity Score (VCSS), Quality of Life (QoL) assessment, venous pump capacity (VPC), and venous refill time (VRT) were measured.
    RESULTS: The study included 263 male and 458 female patients with a mean age of 52.37 ± 12.26 years. Significant differences were observed between Group 1 (above knee reflux) and Group 2 (below knee reflux) patients in terms of VCSS, QoL, VPC, and VRT values. The mean values of VCSS, patient complaints, VPC, and VRT were higher in Group 2 patients. Similar findings were observed within the CEAP 2 subgroup.
    CONCLUSIONS: D-PPG shows potential as a valuable tool in the diagnosis and treatment of CVI. By providing information about venous hemodynamics and volume changes, it can assist in optimizing treatment decisions, including saphenous vein preservation. Combining D-PPG with Doppler USG may improve the comprehensive assessment of CVI and change the treatment option, especially for CEAP 2 patients. More research is needed to confirm these findings and explore wider applications of plethysmographic methods in the management of CVI.
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  • 文章类型: English Abstract
    For the treatment of chronic venous insufficiency (CVI), various therapeutic options are available. In addition to conservative compression therapy, classical vein surgery, sclerotherapy and endoluminal therapies are increasingly being used to treat varicose veins. For a differentiated indication and correct treatment planning, a stepwise diagnosis with clinical examination and documentation of typical symptoms, dynamic vein function measurement to assess the global venous status as well as a qualitative assessment of the exact insufficient vein segments by means of color-coded duplex sonography is required. Due to the non-invasiveness of the examination and the good assessability of therapeutically relevant parameters such as anatomic conditions, diameter, and reflux of insufficient veins, color-coded duplex sonography is considered the gold standard for imaging diagnostics.
    UNASSIGNED: Für die Behandlung der chronischen venösen Insuffizienz (CVI) haben sich mittlerweile verschiedene Therapieoptionen etabliert. So kommen neben der konservativen Kompressionstherapie, der klassisch operativen Entfernung und der Sklerotherapie zunehmend auch endoluminale Therapien korrespondierender Varizen zum Einsatz. Für eine differenzierte Indikationsstellung und korrekte Therapieplanung bedarf es einer stufenweisen Diagnostik mit befundorientierter klinischer Untersuchung, einer dynamischen Venenfunktionsmessung zur Beurteilung der global-venösen Gefäßsituation sowie einer qualitativen Beurteilung der exakten Insuffizienzstrecken mittels einer farbkodierten Duplexsonographie. Aufgrund der Nichtinvasivität der Untersuchung und der guten Beurteilbarkeit von therapeutisch relevanten Parametern wie anatomischem Verlauf, Durchmesser und Refluxstrecken insuffizienter Venen wird die Duplexsonographie heute als Goldstandard für die bildgebende Diagnostik angesehen.
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  • 文章类型: Journal Article
    BACKGROUND: Chronic venous disease (CVD) is extremely common worldwide with prevalence increasing with age. It is associated with a reduced quality of life, particularly in relation to pain, physical function and mobility. Symptomatic chronic venous insufficiency (CVI) with venous ulcer at its\' endpoint, indicates interventional surgery to cure venous reflux therewith promoting wound healing and preventing recurrence. In this retrospective, single-centre, consecutive case-control study in a single patient population of a university clinic in northern Germany a holistic evaluation of varicose vein surgeries has been undertaken. Part I covered postoperative complications in relation to co-morbidities, co-medication and clinical presentation. Part II of this article presents now the hemodynamic results in relation to the perioperative evolution of CVI specific symptoms.
    METHODS: Records of n = 429 (467 extremities) patients from 2009-2013 treated with open surgery were analysed with regards to perioperative hemodynamics. Evolution of CVI symptomology was accessed postoperatively with the help of a questionnaire and patient records in the case of complication development. Venous hemodynamics was analysed in the whole patient population and with regards to complication subgroups: no events (NE), neglectable adverse events (NAE) and non-neglectable adverse events (NNAE).
    RESULTS: Postoperatively, patients\' CVI-symptoms like pain (p < 0.001), swelling (p < 0.001) and itching (p = 0.003) significantly improved. The venous refill time and venous pump capacity improved significantly after open vein surgery (p < 0.05). Regardless of the development of postoperative complications there was a significant improvement of venous function at 6 weeks- and one-year postoperative in follow-up (p < 0.05). Symptom regression was strongly correlated with hemodynamic improvement.
    CONCLUSIONS: A significant improvement of patients\' symptoms was achieved by means of open-surgery, regardless of postoperative complication development. This was in accordance with the improvement of venous hemodynamics. A strong correlation between symptom regression and improvement in venous hemodynamics could be proven.
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  • 文章类型: Journal Article
    Raynaud’s phenomenon (RP) is characterised by paroxysmal reversible episodes of vasospasm, usually involving peripheral small vessels of the fingers or toes and resulting in a triple-colour change starting with pallor and followed by cyanosis and erythema. Attacks are typically triggered by cold or emotional stress. The diagnosis of RP can be made on the basis of the patient’s clinical symptoms. Primary RP occurs without underlying disease and is considered a benign condition. A normal erythrocyte sedimentation rate, negative testing for antinuclear antibodies, normal nailfold capillaries and the absence of structural micro- or macrovascular damage and other diseases lead to the diagnosis of primary RP. Digital photoplethysmography and pulse contour analysis can be used as an additional tool to exclude structural macro- or microvascular disease. In contrast, secondary RP is associated with other diseases, mainly connective tissue diseases such as systemic sclerosis. If there is a suspicion of secondary RP, a thorough laboratory and vascular assessment is required to make the diagnosis of underlying disease. Acrocyanosis and erythromelalgia are additional functional vascular disorders that can be easily distinguished when patients are carefully assessed for their history and clinical symptoms.
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