Abstract
Purpose - To study the value of Doppler echocardiography as a tool for the evaluation of left internal thoracic artery graft (LITAG) patency in patients who underwent coronary revascularization using minimally invasive bypass surgery without extracorporeal circulation. Methods - The first 12 consecutive patients were studied after coronary artery bypass surgery using a 5MHz Doppler transducer. Doppler signals for the systolic and diastolic flow velocities were preferably obtained in the second intercostal space. All patients underwent coronary angiography while hospitalized. Results - The exam was feasible in 93% of patients. Doppler flow pattern was predominantly diastolic (pattern A) in patients with patent anastomoses (6/7). In patients with occluded anastomoses (4/4) Doppler flow pattern was predominantly systolic (pattern B) (p=0.003). Conclusion - Internal thoracic artery flow pattern as measured by Doppler echocardiography after minimally invasive coronary artery bypass graft surgery is an accurate method for identifying LITAG patency.
Translated title of the contribution | Evaluation of Left Internal Thoracic Artery Anastomosis with LeftAnterior Descending Coronary Artery by Doppler Echocardiography |
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Original language | Portuguese |
Pages (from-to) | 413-419 |
Number of pages | 7 |
Journal | Arquivos brasileiros de cardiologia |
Volume | 69 |
Issue number | 6 |
DOIs | |
State | Published - Dec 1997 |
Keywords
- Bypass surgery
- Doppler echocardiography
- Thoracic artery
ASJC Scopus subject areas
- Cardiology and Cardiovascular Medicine