Publications by authors named "Maofeng Gong"

Background: There are different types of vena cava filter (VCF) available in clinical practice. However, limited data exist to determine whether one type is superior to another, and no single VCF is universally recommended in clinical guidelines. The objective of this study was to investigate the safety and efficacy of a novel VCF, Octoparms, for the prevention of pulmonary embolism (PE) and to compare it with the Celect filter.

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Objectives: Inferior vena cava (IVC) penetration is a prevalent complication following the placement of conical filters. However, there is a paucity of studies examining the penetration in smaller IVC. The objective of this study was to assess the time of penetration, the incidence of serious complications associated with penetration, and the process of IVC wall repair in the smaller IVC following the placement of a conical filter.

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Purpose: This study aimed to evaluate the feasibility of establishing an arterial acute mesenteric ischemia (AMI) model in canines using transcatheter autologous thrombus administration.

Materials And Methods: Ten canines were divided into the experimental group (Group A,  = 5) and the sham group (Group B,  = 5). The canines in Group A received thrombus administration to the superior mesenteric artery (SMA) through a guiding catheter, while the canines in Group B received normal saline administration.

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Article Synopsis
  • The study examined how the percentage increase in the diameter of the inferior vena cava (IVC) relates to the development of in-situ IVC thrombosis (iIVCT) after placing IVC filters in patients with lower extremity deep vein thrombosis (LEDVT).
  • Researchers used a single-center retrospective analysis involving 113 patients and applied various statistical methods, like multivariate Cox regression and propensity score matching, to address potential biases and confounding factors.
  • Findings indicated a significant positive correlation between IVC diameter magnification and the incidence of iIVCT, especially noting that a magnification percentage below 37.3% was linked to a reduced risk of thrombosis.
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Article Synopsis
  • The study focused on analyzing the radiographic features of inferior vena cava thrombosis (IVCT) after the placement of retrievable vena cava filters (VCF) and identifying related risk factors.
  • A total of 117 patients were examined, revealing that characteristics such as age, type of deep vein thrombosis, and filter shape significantly influenced the incidence of IVCT in situ.
  • Results indicated that having bilateral lower extremity deep vein thrombosis and increasing short IVC magnification percentage raised the risk of IVCT in situ, while older age and shorter IVC diameter lowered that risk.
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Background: Inferior vena cava filter (IVCF) thrombosis is an uncommon complication of IVCF utilization. The aims of this study were to investigate inferior vena cava (IVC) venography before filter retrieval to determine the incidence relative to filter dwell time and risk factors of IVCF thrombosis based on the clinical data and imaging findings in patients with lower extremity deep vein thrombosis (LEDVT).

Methods: The clinical data from a multicenter randomized trial conducted between October 2017 and March 2019 were reviewed to determine the incidence of IVCF thrombosis in preretrieval venography and the associated risk factors.

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Background: Comparing the accuracy and reliability of ankle-brachial index (ABI) measured by an oscillometric device with the Doppler method in peripheral arterial disease (PAD).

Methods: 122 patients admitted to the department of interventional radiology with PAD were studied. ABI was measured with the 2 methods in random order.

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Objective: To evaluate the efficacy and safety of AngioJet rheolytic thrombectomy (ART) coupled with dose-reduced rt-PA, compared to catheter-directed thrombolysis (CDT) alone, for the treatment of massive inferior vena cava filter (IVCF)-related thrombosis.

Methods: We conducted a retrospective analysis of 40 patients who received either ART or CDT alone as the first-line endovascular therapy (ET) between January, 2016 and September, 2022. The data on demographics, clinical characteristics, technical success, clinical success, complications, and early follow-up were reviewed.

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Background: Inferior vena cava (IVC) filters are commonly used intravascular devices designed to prevent fatal pulmonary embolism (PE), maintaining the IVC filter as centered as possible is fundamental for achieving its filtration function.

Objective: This study aimed to characterize the tilt angles of IVC filter between the vascular access of internal jugular vein (IJV) and femoral vein (FV), as well as to identify factors associated with increased or decreased tilt angles between placement and retrieval.

Design: This is a multicenter retrospective study.

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The purpose of this research was to establish a safe, effective, and simple nervous system aneurysm model. This method could quickly and stably establish an exact canine tongue aneurysm model. This paper summarizes the technique and key points of the method.

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Objective: To investigate the safety and effectiveness of catheter-based therapy (CBT) using AngioJet rheolytic thrombectomy (ART) device or large lumen catheter (LLC) in the oncological patients with inferior vena cava thrombosis (IVCT).

Methods: This was a retrospective study including eligible patients with IVCT treated with CBT coupled with dose-reduced thrombolysis as the first-line treatment from February 1, 2015 to January 1, 2022. The baseline demographics, comorbidities, clinical characteristics, treatment details, course data were all reviewed.

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To investigate the possible risk factors for proximal pulmonary embolism (PE) in patients with lower extremity deep vein thrombosis (LEDVT). A single-center, retrospective cohort study was conducted. Consecutive patients diagnosed with unilateral LEDVT and confirmed PE by computed tomography (CT) pulmonary angiography and indirect CT venography between September 2015 and January 2022 were included.

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Objective: To investigate the safety and effectiveness of catheter-based therapy (CBT) compared to conventional catheter-directed thrombosis (CDT) for non-oncological patients with inferior vena cava thrombosis (IVCT), as well to evaluate the differences between CBTs using AngioJet rheolytic thrombectomy (ART) and large lumen catheter aspiration (LLCA).

Methods: This retrospective single-center study included eligible patients with IVCT treated with CBTs coupled with/without CDT or CDT alone as the first-line treatment between January 3, 2015 and January 28, 2022. The baseline demographics, comorbidities, clinical characteristics, treatment details, course data were all reviewed.

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Purpose: The present study aimed to investigate the preliminary safety and efficacy of rheolytic thrombectomy (RT) using an AngioJet Zelante DVT catheter or a Solent Omni catheter for acute proximal deep vein thrombosis (DVT).

Material And Methods: We conducted a retrospective review of 40 patients who were treated with an AngioJet RT between January 2019 and January 2021, and then the patients were divided into the ZelanteDVT group (n = 17) and the Solent group (n = 23). Data on demographics, clinical characteristics, technical success, clinical success, complications, and early follow-up were analysed.

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Background: The purpose of this study was to identify the signaling pathways and immune microenvironments related to elderly stroke patients.

Methods: We downloaded the public transcriptome data (GSE37587) from the gene expression omnibus and divided the patients into young and old groups and identified differentially expressed genes (DEGs). Gene ontology function analysis, Kyoto encyclopedia of genes and genomes pathway analysis, and gene set enrichment analysis (GSEA) were performed.

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Objective: The objective of this study was to investigate the risk of acute kidney injury in elderly patients compared with nonelderly patients undergoing AngioJet rheolytic thrombectomy for treatment of acute deep vein thrombosis.

Methods: A retrospective review of all patients who underwent AngioJet rheolytic thrombectomy for the treatment of acute deep vein thrombosis between November 1, 2014 and August 1, 2022 was conducted. Their baseline demographics, comorbidities, clinical characteristics, procedural details, and postoperative course were reviewed.

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Objective: Nonfilter-associated inferior vena cava thrombosis (IVCT) is an under-recognized but severe state of venous thromboembolism. The aims of this study were to investigate risk factors and develop a prediction model based on clinical data and imaging findings to evaluate the probability of IVCT in patients with lower extremity deep vein thrombosis (LEDVT).

Methods: A single-center retrospective cohort study was conducted.

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Article Synopsis
  • - The study compared the safety and effectiveness of pharmacomechanical catheter-directed thrombolysis (PCDT) with AngioJet treatment to conventional anticoagulation therapy for patients with cancer-associated thrombosis (CAT) from 2016 to 2022.
  • - A total of 51 patients were analyzed, with no significant demographic differences between those receiving PCDT and those on anticoagulation alone; clinical success was observed in 90.5% of the PCDT group, showing improved symptoms of leg pain and swelling.
  • - PCDT resulted in better iliofemoral patency at six months (70% vs. 32.1% in the anticoagulation group) and had a low
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Objective: This study aimed to investigate the association between the left common iliac vein (CIV) compression degree and characteristics of first diagnosed left lower extremity deep vein thrombosis (DVT).

Patients And Methods: This was a single-center retrospective observational study. Between January 2015 and June 2022, first diagnosed left lower extremity DVT patients with enhanced computed tomography of lower extremities were included.

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Background: Transcatheter arterial embolization (TAE) for acute renal hemorrhage (RH) under coagulopathic conditions with N-butyl-2 cyanoacrylate (NBCA) is rarely described in the literature, and a consensus on the efficacy and safety of NBCA under this condition has not been reached. The present study aimed to evaluate the efficacy and safety of TAE using NBCA Glubran 2 in the treatment of acute RH under coagulopathic conditions.

Methods: Eight patients who underwent TAE with NBCA Glubran 2 for acute RH under coagulopathic conditions were collected.

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Objective: To compare the efficacy and safety of AngioJet rheolytic thrombectomy (ART) and large-lumen catheter suction (LCS) in the treatment of inferior vena cava (IVC) filter related IVC-iliac vein thrombosis.

Methods: The clinical data and medical imaging materials of 65 cases were collected, which suffered acute inferior vena cava filter related IVC-iliac vein thrombosis and received percutaneous mechanic thrombectomy (PMT) from June 2016 to June 2020 in our center, including 32 cases of LCS group and 33 cases of ART group. The final thrombolysis rate, the incidence of complications, and the follow-up are evaluated.

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Objective: Acute limb ischemia is one of the most common arterial emergencies. The data of mechanical revascularization using Solitaire AB device coupled with thromboaspiration for the treatment of popliteal and infrapopliteal acute limb ischemia are limited. The aim of this study was to review the preliminary safety and effectiveness.

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