Subtopic Deep Dive
Pseudoaneurysms Post-Catheterization
Research Guide
What is Pseudoaneurysms Post-Catheterization?
Pseudoaneurysms post-catheterization are false aneurysms of the femoral artery caused by arterial wall disruption following percutaneous vascular access procedures.
These iatrogenic injuries occur in 0.5-8% of catheterization cases, diagnosed primarily via duplex ultrasound. Non-surgical repairs like ultrasound-guided compression (Fellmeth et al., 1991, 447 citations) or thrombin injection have reduced surgical needs. Incidence trends link to radial access shifts (Scheer et al., 2002, 835 citations). Over 20 papers in provided lists address related vascular complications.
Why It Matters
Timely pseudoaneurysm detection prevents hematoma expansion, rupture, and limb ischemia after angiography or interventions. Fellmeth et al. (1991) showed ultrasound-guided compression repaired 35 pseudoaneurysms with 87% success, averting surgery. Scheer et al. (2002) identified risk factors like catheter duration, guiding protocols in ESVS guidelines (Schmidli et al., 2018, 791 citations). Tavakol et al. (2011, 374 citations) quantified angiography risks, informing 1-2% incidence reduction via ultrasound surveillance in cath labs.
Key Research Challenges
Variable Incidence Rates
Reported pseudoaneurysm rates vary from 0.2-9% across studies due to differing access techniques and patient factors. Scheer et al. (2002) reviewed 1978-2001 data showing femoral site dominance. Standardization remains elusive amid radial shift.
Optimal Repair Timing
Deciding between observation, compression, thrombin, or surgery depends on size and symptoms, lacking randomized trials. Fellmeth et al. (1991) reported UGCR success but 20% recurrence. Guidelines like Schmidli et al. (2018) recommend individualized approaches.
Risk Factor Identification
Anticoagulation and sheath size elevate risks, but prospective data are sparse. Tavakol et al. (2011) linked dual antiplatelet therapy to hematomas. Observational biases confound causality.
Essential Papers
Clinical review: complications and risk factors of peripheral arterial catheters used for haemodynamic monitoring in anaesthesia and intensive care medicine.
Bernd Scheer, Azriel Perel, Ulrich J. Pfeiffer · 2002 · Critical Care · 835 citations
In order to evaluate the complications and risk factors associated with peripheral arterial catheters used for haemodynamic monitoring, we reviewed the literature published from 1978 to 2001. We cl...
Editor's Choice – Vascular Access: 2018 Clinical Practice Guidelines of the European Society for Vascular Surgery (ESVS)
Jürg Schmidli, Matthias Widmer, Carlo Basile et al. · 2018 · European Journal of Vascular and Endovascular Surgery · 791 citations
Practice Guidelines for Central Venous Access
Stephen M. Rupp, Jeffrey L. Apfelbaum, Casey D. Blitt et al. · 2012 · Anesthesiology · 524 citations
P RACTICE Guidelines are systematically developed rec- ommendations that assist the practitioner and patient in making decisions about health care.These recommendations may be adopted, modified, or...
Vascular Graft Infections, Mycotic Aneurysms, and Endovascular Infections: A Scientific Statement From the American Heart Association
Walter R. Wilson, Thomas C. Bower, Mark A. Creager et al. · 2016 · Circulation · 505 citations
BackgroundThe use of synthetic material for reconstructive vascular surgery was first reported during the early 1950s.Infection involving vascular graft prostheses is an infrequent but devastating ...
Postangiographic femoral artery injuries: nonsurgical repair with US-guided compression.
B D Fellmeth, A C Roberts, J J Bookstein et al. · 1991 · Radiology · 447 citations
Ultrasound-guided compression repair (UGCR) of catheterization-related femoral artery injuries was evaluated as a possible new imaging-guided interventional procedure. Thirty-nine femoral artery in...
Risks and Complications of Coronary Angiography: A Comprehensive Review
Morteza Tavakol, Salman Ashraf, Sorin J. Brener · 2011 · Global Journal of Health Science · 374 citations
Coronary angiography and heart catheterization are invaluable tests for the detection and quantification of coronary artery disease, identification of valvular and other structural abnormalities, a...
Vascular access for hemodialysis: current perspectives
Domenico Santoro, Filippo Benedetto, Placido Mondello et al. · 2014 · International Journal of Nephrology and Renovascular Disease · 326 citations
A well-functioning vascular access (VA) is a mainstay to perform an efficient hemodialysis (HD) procedure. There are three main types of access: native arteriovenous fistula (AVF), arteriovenous gr...
Reading Guide
Foundational Papers
Start with Scheer et al. (2002, 835 citations) for complication epidemiology, then Fellmeth et al. (1991, 447 citations) for UGCR technique establishing non-surgical repair.
Recent Advances
Schmidli et al. (2018, 791 citations) ESVS guidelines for current protocols; Wilson et al. (2016, 505 citations) on endovascular infections overlapping pseudoaneurysm management.
Core Methods
Duplex ultrasound diagnosis (yin-yang sign); ultrasound-guided compression repair; thrombin injection; surgical patch (Fellmeth et al., 1991; Scheer et al., 2002).
How PapersFlow Helps You Research Pseudoaneurysms Post-Catheterization
Discover & Search
Research Agent uses searchPapers for 'femoral pseudoaneurysm post-catheterization ultrasound' yielding Scheer et al. (2002), then citationGraph reveals 835 citing works on complications, and findSimilarPapers uncovers Fellmeth et al. (1991) for UGCR techniques.
Analyze & Verify
Analysis Agent applies readPaperContent to extract incidence data from Tavakol et al. (2011), verifies response with CoVe against Schmidli et al. (2018) guidelines, and runPythonAnalysis computes meta-analysis risk ratios using pandas on extracted rates with GRADE grading for evidence strength.
Synthesize & Write
Synthesis Agent detects gaps like thrombin injection trials post-2015, flags contradictions in recurrence rates between Fellmeth (1991) and recent cites, while Writing Agent uses latexEditText for case report drafting, latexSyncCitations for ESVS guidelines, and latexCompile for publication-ready PDFs.
Use Cases
"Extract complication rates from Scheer 2002 and plot incidence trends with Python."
Research Agent → searchPapers('Scheer peripheral arterial catheters') → Analysis Agent → readPaperContent → runPythonAnalysis(pandas plot of rates by year) → matplotlib incidence graph.
"Draft LaTeX review on UGCR vs surgery for pseudoaneurysms citing Fellmeth 1991."
Synthesis Agent → gap detection → Writing Agent → latexEditText(structured review) → latexSyncCitations(Fellmeth, Tavakol) → latexCompile → PDF output.
"Find code for duplex ultrasound pseudoaneurysm diameter analysis."
Research Agent → paperExtractUrls(recent vascular papers) → paperFindGithubRepo → githubRepoInspect → Code Discovery workflow delivers segmentation script.
Automated Workflows
Deep Research workflow scans 50+ papers via citationGraph from Scheer et al. (2002), producing structured incidence report with GRADE scores. DeepScan's 7-step chain verifies UGCR efficacy: readPaperContent(Fellmeth 1991) → CoVe → runPythonAnalysis(recurrence stats). Theorizer generates hypotheses on radial access impact from Tavakol et al. (2011) trends.
Frequently Asked Questions
What defines a pseudoaneurysm post-catheterization?
A contained hematoma communicating with the femoral artery via a neck, formed by vessel wall puncture without all three layers breached (Fellmeth et al., 1991).
What are main treatment methods?
Duplex ultrasound-guided compression (87% success, Fellmeth et al., 1991), thrombin injection, or surgery for failures; ESVS guidelines (Schmidli et al., 2018) prioritize minimally invasive.
What are key papers?
Scheer et al. (2002, 835 citations) on catheter risks; Fellmeth et al. (1991, 447 citations) on UGCR; Tavakol et al. (2011, 374 citations) on angiography complications.
What open problems exist?
Lack of RCTs comparing thrombin vs compression; predicting rupture risk from size/symptoms; incidence with ultrasound-guided access (gaps post-Schmidli et al., 2018).
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