Intrasac Pressure Waveforms After Endovascular Aneurysm Repair (EVAR) are a Reliable Marker of Type I Endoleaks, but not Type II or Combined Types: An Experimental Study
| Autor: | Anthony J. Grass, L.E. Ansdell, M. Adiseshiah, A. Chaudhuri |
|---|---|
| Rok vydání: | 2004 |
| Předmět: |
medicine.medical_specialty
medicine.medical_treatment Pulsatile flow Sac decompression Blood Pressure Endovascular aneurysm repair Blood Vessel Prosthesis Implantation Aortic aneurysm Postoperative Complications Aneurysm Pressure waveform Internal medicine medicine Humans cardiovascular diseases Thrombus Medicine(all) Pressure waveforms business.industry Models Cardiovascular Reproducibility of Results medicine.disease Abdominal aortic aneurysm Treatment Outcome Blood pressure Pulsatile Flow Cardiology Stents Surgery Negative interference Cardiology and Cardiovascular Medicine business Vascular Surgical Procedures Blood Flow Velocity Aortic Aneurysm Abdominal |
| Zdroj: | European Journal of Vascular and Endovascular Surgery. 28:373-378 |
| ISSN: | 1078-5884 |
| Popis: | PurposeTo ascertain the nature of the pressure wave transmitted through aneurysm thrombus and the changes produced after endovascular repair and the development of type I and II endoleaks.MethodsA 25mm Talent endovascular graft was deployed in a latex model of an abdominal aortic aneurysm, which was incorporated in a pulsatile flow unit. The graft was surrounded by thrombus analogue to simulate conditions in vivo. Pressure waveforms in the sac were captured over 5s at 1000Hz in these settings: (i) no endoleaks (baseline), after introduction of (ii) type I (iii) type II and (iv) combined type I and II endoleaks. The arterial blood pressure settings used were 140/100 and 130/90mmHg, denoted the high and low settings, respectively. ANOVA in Minitab 13 was applied for statistical analysis.ResultsPulsatile waveforms were transmitted through the thrombus. Intrasac pressure after stent-grafting reduced to 110/107, 99/96mmHg (p |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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