Digital ischemic necrosis in a patient with systematic lupus erythematosus patient after severe acute respiratory syndrome coronavirus 2 infection: a case report.

Background: Patients with coronavirus disease 2019 have a high incidence of thrombosis that decreases after recovery. When coronavirus disease 2019 is accompanied by diseases prone to thrombosis, risk of post-infection thrombotic events may increase.

Case Presentation: We report a case of digital ischemic gangrene in a 24-year-old Chinese female with systemic lupus erythematosus after recovery from coronavirus disease 2019.

A randomized controlled trial of standard vs customized graduated elastic compression stockings in patients with chronic venous disease.

Objective: This study aimed to compare the efficacy of customized graduated elastic compression stockings (c-GECSs) based on lower leg parameter models with standard GECSs (s-GECSs) in patients with chronic venous disease (CVD).

Methods: In this randomized, single-blind, controlled trial, 79 patients with stage C2 or C3 CVD were assigned to one of two groups: c-GECSs or s-GECSs. The primary outcome was change to Venous Insufficiency Epidemiological and Economic Study Quality of Life (VEINES-QOL) scores at months 1, 3, and 6 as compared with baseline.

Development and validation of a graduated compression stockings adherence scale.

Objective: Compression therapy with the use of graduated compression stockings (GCSs) is a common treatment strategy for chronic venous disease (CVD). However, there is no uniform and objective standard to assess adherence to the use of GCSs. The aim of this study is to develop and validate a GCS Compliance Scale (GCSAS) to fill gaps in internationally recognized comprehensive scales and provide a useful tool for future research.

Nomogram for predicting pulmonary embolism in gynecologic inpatients with isolated distal deep venous thrombosis.

Objective: To investigate the incidence of isolated distal deep venous thrombosis (IDDVT) concurrent with pulmonary embolism (PE) in gynecologic inpatients, analyze the risk factors for IDDVT with PE, and establish a nomogram model for IDDVT patients with PE.

Methods: A total of 260 patients were diagnosed with IDDVT between December 2017 and November 2020. The incidence of PE in these patients was determined using computed tomography pulmonary angiography.

Three-dimensional laser scanner as a new tool for measuring lower limb volume in patients with chronic venous diseases.

Objective: Measurement of lower limb volume in patients with chronic venous disease (CVD) is necessary for assessing severity at the time of diagnosis and evaluating response to therapy administered. Existing methods have some limitations in clinical application and accuracy. The study aimed to investigate the reliability and validity of a three-dimensional laser scanner (3DLS) in measuring the lower limb volume of patients with CVD.

Combination of Percutaneous Rotational Thrombectomy and Drug-Coated Balloon for Treatment of Femoropopliteal Artery Nonembolic Occlusion: 12-Month Follow-up.

Purpose: To evaluate safety and efficacy of percutaneous mechanical thrombectomy using the Rotarex catheter combined with drug-coated balloon (DCB) in treatment of femoropopliteal artery occlusive disease.

Materials And Methods: Between January 2016 and February 2018, 81 patients with acute or subacute femoropopliteal artery occlusions were treated with the Rotarex catheter combined with DCB. Lesions were classified according to the onset of symptoms as acutely (< 14 d) or subacutely (14 d to 3 mo) occluded.

Advanced utilization of copper in waste printed circuit boards: Synthesis of nano-copper assisted by physical enrichment.

The copper in the waste printed circuit boards (WPCBs) is cleanly recycled by physical methods and presented in the form of nano copper particles by hydrometallurgical, which provides environmental approach to the advanced utilization of metal copper. Copper in WPCBs was first pre-concentrated by gradient enrichment process including gravity separation, mechanical grinding and flotation. The leaching method was then used to dissolve copper from the flotation concentrate in ammoniacal/ammonium salt solutions.

Randomized clinical trial of radiofrequency-induced thermotherapy combined with transilluminated powered phlebectomy versus high ligation and stripping for the treatment of lower limb varicose veins.

Objective: The objective of this study was to evaluate the efficacy and safety of radiofrequency-induced thermotherapy (RFiTT) combined with transilluminated powered phlebectomy (TIPP) in the treatment of lower limb varicose veins (VVs) in comparison with high ligation and stripping (HLS) combined with TIPP.

Methods: The patients with lower limb VVs were randomly assigned to RFiTT combined with TIPP or HLS combined with TIPP. The primary end point was total closure rate of the great saphenous vein at 12 months.

Randomized controlled trial of orchid drug-coated balloon versus standard percutaneous transluminal angioplasty for treatment of femoropopliteal artery in-stent restenosis.

Background: To assess the efficacy and safety of Orchid drug-coated balloon (DCB) for treatment of femoropopliteal (FP) artery in-stent restenosis (ISR) in Chinese patients.

Methods: The study is a prospective, single center, single-blinded, randomized controlled trial (RCT) that randomized (1:1) 74 patients to DCB group (N.=38) and PTA group (N.

Combination of Rotarex Thrombectomy and Drug-Coated Balloon for the Treatment of Femoropopliteal Artery In-Stent Restenosis.

Background: The optimal treatment method for femoropopliteal (FP) artery in-stent restenosis (ISR) remains controversial. We assess the efficacy and safety of combination of Rotarex thrombectomy and drug-coated balloon (DCB) for the treatment of FP ISR.

Methods: From June 2016 to July 2017, 32 patients with FP ISR who underwent combination of Rotarex thrombectomy and DCB angioplasty were included in a prospective registry.

WITHDRAWN: Drug Coated Balloon vs. Standard Percutaneous Transluminal Angioplasty for the Treatment of Femoropopliteal Artery Disease: 12 - Month Results of the LEGFLOW OTW China Randomised Controlled Trial.

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Expression of platelet-derived growth factor in the vascular walls of patients with lower extremity arterial occlusive disease.

The aim of the present study was to quantitatively analyze the expression of platelet-derived growth factor (PDGF)-A and PDGF-B in the vascular walls of patients with lower extremity arterial occlusive disease (LEAOD). The expression levels of PDGF-A and PDGF-B in the lower extremity arteries of 19 LEAOD patients (case group) and three healthy subjects (control group) was determined using quantitative polymerase chain reaction. Intergroup comparisons revealed that the relative mRNA expression levels were higher in the case group, as compared with the control group, for PDGF-A (34.

[Surgical treatment of 154 patients with non-traumatic acute lower limb ischemia].

Objective: To analyze the surgical treatment and prognosis of non-traumatic acute lower limb ischemia, and compare the morbidity and prognosis of acute arterial embolism and acute arterial thrombosis.

Methods: The clinical data of 154 acute lower limb ischemia patients surgically treated from July 1999 to December 2007 were retrospectively analyzed. Fogarty catheter embolectomy was used in all patients; in which, 128 cases underwent Fogarty catheter embolectomy only, 8 cases Fogarty catheter embolectomy combined with endarterectomy, 13 cases Fogarty catheter embolectomy combined with vascular reconstruction with prosthetic graft or great saphenous vein, 5 cases Fogarty catheter embolectomy combined with amputation.

[Clinical analysis on treatment for superficial varicosities of low limbs with minimally invasive rotary varicotomy].

Objective: To evaluate therapeutic efficacy of minimally invasive rotary varicotomy (TriVex) for superficial varicosities of low limbs and summarize our therapeutic experiences.

Methods: One hundred and eighty-two cases (totally 216 lower limbs) were applied minimally invasive rotary varicotomy (TriVex) and relative clinical data was analyzed.

Results: The average operation time for each limb was 48 min.

[Endovascular therapy and arterial bypass for subclavian artery occlusion].

Objective: To investigate the effect of endovascular therapy and artery bypass for subclavian artery occlusion disease and to explore a suitable therapeutic procedure.

Methods: Thirty-nine patients with subclavian artery occlusive disease received endovascular therapy or arterial bypass from June 1997 to May 2004. Twenty-seven endovascular stenting were performed on 26 patients through the femoral artery (n = 14) or combined brachial artery (n = 12).

[Follow-up study in endovascular therapy for the renal artery stenosis].

Objective: To evaluate the safety and efficacy of endovascular therapy for renal artery stenosis.

Methods: Percutaneous transluminal renal angioplasty with stent (PTRAS) was performed on 33 consecutive patients with severe renal artery stenosis who suffered from poorly controlled hypertension or renal dysfunction. They were subsequently underwent 7 to 49 months clinical follow up for the effect of the procedure on renal function, blood pressure control, mortality.

[Stenting for carotid artery stenosis of 55 cases].

Objective: To introduce the procedure of carotid stenting, and to summary experiences of 55 cases. To study the theory and clinical significance of carotid stenting for carotid artery stenosis.

Methods: Fifty-five patients with severe carotid atheromatous stenoses were treated by stent implantation.