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Updated: Aug 29, 2026

Modified Octopus Technique for Thoracoabdominal Aortic Aneurysm
Published on: August 1, 2025
Percutaneous closure of an iatrogenic puncture of the aortic arch
S J Patel1, G E Venn, S R Redwood
1Department of Cardiology, St. Thomas' Hospital, Guy's and St. Thomas' Hospitals NHS Trust, Lambeth Palace Road, London SE1 7EH, England. Sundip.Patel@gstt.sthames.nhs.uk
Insights
A rare complication occurred when a vascular sheath was mistakenly placed in the aorta instead of the venous system after thrombolytic therapy for acute myocardial infarction and heart block. Management of this aortic misplacement is detailed.
Area of Science:
- Cardiology
- Vascular Surgery
- Interventional Medicine
Background:
- Acute myocardial infarction (AMI) with complete heart block necessitates urgent intervention, often involving thrombolytic therapy.
- Vascular access is crucial for administering treatments and monitoring hemodynamics during critical cardiac events.
- Potential complications during vascular access procedures require careful consideration and management.
Observation:
- A patient with AMI and complete heart block received thrombolytic therapy.
- During the procedure, a vascular sheath was inadvertently placed within the aorta instead of the intended venous system.
- This represents a rare but significant vascular access complication.
Findings:
- Successful management strategies for inadvertent aortic placement of a vascular sheath were employed.
- The case highlights the importance of precise procedural technique in vascular access.
- Prompt recognition and intervention are key to mitigating risks associated with such misplacements.
Implications:
- This case provides valuable insights into managing rare vascular complications during critical cardiac interventions.
- It underscores the need for vigilance and advanced procedural skills in interventional cardiology.
- Findings can inform training and protocols to improve patient safety in similar scenarios.
Abstract:
We report on the management of a rare complication of a vascular sheath being placed inadvertently in the aorta rather than in the venous system following thrombolytic therapy administration in a patient presenting with an acute myocardial infarction and complete heart block.
