Complete arterial coronary artery bypass grafting versus conventional revascularization--early results
1Department of Thoracic and Cardiovascular Surgery, University Hospital Homburg/Saar, Germany. chowen@med-rz.uni-sb.de
Insights
Complete arterial coronary artery bypass grafting (CABG) using modern techniques is as safe as conventional methods. This approach, utilizing internal thoracic artery (ITA) and radial artery (RA) grafts, shows comparable safety to traditional vein grafts.
Area of Science:
- Cardiovascular Surgery
- Thoracic Surgery
- Vascular Surgery
Background:
- Complete arterial coronary artery bypass grafting (CABG) may improve long-term outcomes but carries debated perioperative risks.
- Novel techniques like skeletonization of the internal thoracic artery (ITA), T-grafts, and radial artery (RA) utilization may mitigate these risks.
- This study compares outcomes between conventional CABG and complete arterial CABG.
Purpose of the Study:
- To evaluate the safety and outcomes of complete arterial CABG compared to conventional CABG.
- To assess the impact of modern surgical techniques on perioperative risk in CABG.
- To compare patient outcomes using different arterial graft combinations versus traditional vein grafts.
Main Methods:
- Three patient groups underwent CABG: Group I (n=50) used left ITA and vein grafts (conventional).
- Group II (n=52) received complete arterial CABG with bilateral ITA grafts.
- Group III (n=52) underwent complete arterial CABG using left ITA and radial artery (RA) grafts.
Main Results:
- Mean anastomoses per patient were similar across groups (3.9-4.2).
- Operating and ischemic times were significantly longer in complete arterial CABG groups (II and III) compared to conventional (I).
- Postoperative complications and in-hospital mortality showed no significant differences between the groups.
Conclusions:
- Complete arterial CABG utilizing modern surgical techniques, including ITA and RA grafts, is as safe as conventional CABG with vein grafts.
- The study demonstrates comparable safety profiles despite increased operative and ischemic times with arterial grafts.
- Modern complete arterial CABG approaches offer a safe alternative to conventional methods.
Background:
Complete arterial coronary artery bypass grafting (CABG) offers the potential to improve long-term results. However, an increased perioperative risk has been controversially discussed. New operative techniques (skeletonization of the ITA/ T-grafts/utilization of the radial artery (RA)) may decrease perioperative risk. We compared the outcome after conventional with that after complete arterial CABG.
Material And Methods:
Three consecutive groups of patients were analyzed. In group I (n = 50), CABG was performed using left ITA and vein grafts. The other two groups received complete arterial CABG with either both ITA's (group II; n = 52) or left ITA and RA (group III; n = 52).
Results:
A mean of 3.9+/-0.8 (I) versus 4.2+/-0.8 (II) and 3.9+/-0.9 (III) anastomoses were performed per patient (ns). Mean operating time was significantly prolonged in group II (II: 252+/-54; p<0.0001; vs. I: 191+/-36; III: 203+/-33). Mean ischemic time was significantly prolonged in group II and III (II:65+/-20; p<0.0001; III: 68+/-16; p<0.0001; vs. I: 51+/-15). Mean bypass time (I: 83+/-23; II: 95+/-41; III: 91+/-21), the rate of postoperative complications and in-hospital mortality (I: n = 0; II: n = 2; III: n = 0; ns) showed no significant differences.
Conclusions:
Complete arterial CABG using modern surgical techniques is as safe as the conventional surgical approach using left ITA and vein graft.
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