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Published on: September 15, 2023
[Angiographic Results After Coronary Artery Bypass Grafting]
Y A Schneider1, M V Isayan1, G N Antipov1
1Federal Сenters of High Medical Technologies Health Ministry.
Insights
Graft patency after coronary artery bypass grafting (CABG) is significantly influenced by preoperative coronary blood flow (TIMI scale). Other factors like Syntax score and vessel diameter did not show a significant impact on graft patency up to 12 months post-surgery.
Area of Science:
- Cardiology
- Vascular Surgery
- Medical Imaging
Background:
- Coronary heart disease is a leading cause of cardiovascular mortality globally.
- Coronary artery bypass grafting (CABG) is a common surgical intervention for managing coronary heart disease.
- Assessing the patency of bypass grafts is crucial for long-term patient outcomes.
Purpose of the Study:
- To analyze graft patency results following CABG surgery.
- To evaluate the influence of various factors on graft patency, including TIMI flow, Syntax score, vessel characteristics, and surgical technique.
Main Methods:
- Retrospective analysis of angiographic data from 142 patients who underwent CABG.
- Assessment of graft patency based on TIMI flow, Syntax score, vessel diameter, degree of stenosis, and surgical approach (Off pump, On pump, parallel bypass).
Main Results:
- 52.1% of patients exhibited no graft dysfunction; 47.9% had varying degrees of dysfunction.
- Graft patency was significantly affected by preoperative coronary blood flow (TIMI scale).
- Syntax score, vessel diameter, and stenosis percentage did not significantly impact graft patency within 12.7±6.5 months.
Conclusions:
- Preoperative coronary blood flow (TIMI) is a significant predictor of graft patency.
- Surgical techniques (Off pump, On pump, parallel bypass) showed similar immediate postoperative results, but a trend towards increased dysfunction after off-pump surgery was observed up to 30 months.
- No significant relationship was found between Syntax score, coronary artery diameter, stenosis percentage, and graft patency at 12-month follow-up.
Abstract:
The main place among cardiovascular diseases takes coronary heart disease. The number of coronary artery bypass surgery increases every year. The large number of coronary artery bypass grafting (CABG) performed worldwide. The need for assessment of grafts patency is enormous.
Objective:
We are performed analyze of graft patency results, after CABG surgery in our clinic.
Materials And Methods:
This paper presents the results of a retrospective analysis of angiographic graft patency data depends of TIMI flow, Syntax score, diameter and degree of vascular lesions, as well as the surgery type.
Results:
According angiographic data of 142 patients, we found that 74 (52.1 %) had no graft dysfunction. In the 68 (47.9 %) patients had various types graft dysfunction which is 3.0 % of the total number of operated patients in our center for coronary heart disease. 31 (46 %) patients were operated under Off pump, 19 (28 %) - On pump and 18 (26 %) - in a parallel bypass technic. According to our data parameters such as Syntax score, the diameter of the vessel and the percentage of lesion, its did not significantly affect the grafts patency in terms of up to 12,7±6,5 months. Preoperative coronary blood flow (assessed by TIMI scale) the significantly affects the grafts patency.
Conclusions:
In the graft patency for perioperative period and follow-up, significantly affected preoperative coronary blood flow assessed by TIMI. The results of beating heart (off pump and using a parallel IR) and On pump surgery similar in the immediate postoperative period. But there is tend to increase graft dysfunction in up to 30 months in patients after off pump surgery. We don't found relation between Syntax score, the diameter of the coronary arteries, the percentage of stenosis and graft patency after 12 months follow-up.
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