Related Experiment Video
Updated: Jan 24, 2026
09:04
Synergizing Antegrade Endoscopic with Bridging Vein Harvesting for Improvement of Great Saphenous Vein Graft Quality from the Lower Leg
Published on: November 19, 2019
9.2K
Endoscopic Versus Open Radial Artery Harvesting: A Population-Level Analysis
Allen A Razavi1, Brian Lim1, Aminah Sallam1
1Department of Cardiac Surgery, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California.
The Annals of Thoracic Surgery
|January 22, 2026
Summary
Endoscopic radial artery harvesting for coronary artery bypass grafting (CABG) shows no difference in major adverse cardiac events compared to open harvest. This technique offers similar long-term outcomes for multivessel CABG patients.
Area of Science:
- Cardiovascular Surgery
- Surgical Techniques
- Medical Technology
Background:
- Radial artery is increasingly used for multivessel coronary artery bypass grafting (CABG).
- Optimal radial artery harvesting technique (endoscopic vs. open) remains under investigation.
- Population-level comparison of harvesting methods is crucial for clinical decision-making.
Purpose of the Study:
- To compare short- and long-term outcomes of endoscopic versus open radial artery harvesting in multivessel CABG.
- To evaluate the safety and efficacy of different radial artery harvesting techniques.
- To inform best practices for radial artery utilization in CABG surgery.
Main Methods:
- Retrospective analysis of 6,840 adult patients undergoing isolated, first-time, multivessel CABG with radial artery use (2015-2022).
- Comparison between endoscopic (n=3,938) and open (n=2,902) radial harvest groups.
- Propensity score matching on 26 variables; Cox proportional hazards model for 5-year MACE (death, MI, repeat revascularization).
Main Results:
- Endoscopic harvest group had younger patients and lower prevalence of heart failure.
- Shorter hospital stays observed in the endoscopic group (p=0.02).
- No significant differences in 30-day mortality, 1-year wound/vascular complications, or 5-year freedom from MACE between groups.
Conclusions:
- Endoscopic radial artery harvesting is a safe alternative to open harvesting for multivessel CABG.
- Both techniques demonstrate comparable long-term efficacy regarding major adverse cardiac events.
- Shorter hospital stay is a potential short-term benefit of the endoscopic approach.
Related Concept Videos
01:12Analysis of Population Pharmacokinetic Data
694
Analysis of population pharmacokinetic data involves studying the behavior of drugs within diverse populations to understand their pharmacokinetic parameters. Traditional pharmacokinetic methods typically involve collecting samples from a few individuals and estimating these parameters. While these methods are commonly used, they have limitations in capturing the variability in drug response among individuals or heterogeneous populations. Population pharmacokinetics is employed to address these...
694
01:23Radial System Protection
431
Radial systems employ time-delay overcurrent relays to reduce load interruptions. When a fault occurs, the nearest breaker opens first, while upstream breakers remain closed due to longer delay settings. This approach ensures minimal disruption to the rest of the system.
In a radial system with a fault downstream of the third breaker, ideally, only the third breaker will open, isolating the fault and interrupting the load connected beyond it. The second breaker has a longer delay setting,...
In a radial system with a fault downstream of the third breaker, ideally, only the third breaker will open, isolating the fault and interrupting the load connected beyond it. The second breaker has a longer delay setting,...
431
02:04Conservation of Small Populations
16.7K
Small population sizes put a species at extreme risk of extinction due to a lack of variation, and a consequent decrease in adaptability. This weakens the chances of survival under pressures such as climate change, competition from other species, or new diseases. Large populations are more likely to survive pressures such as these, as such populations are more likely to harbor individuals that have genetic variants that are adaptive under new stresses. Small populations are much less...
16.7K
01:25What is Population Genetics?
64.5K
A population is composed of members of the same species that simultaneously live and interact in the same area. When individuals in a population breed, they pass down their genes to their offspring. Many of these genes are polymorphic, meaning that they occur in multiple variants. Such variations of a gene are referred to as alleles. The collective set of all the alleles within a population is known as the gene pool.
64.5K
01:11Assessment of radial pulse
1.4K
Assessment of Radial Pulse
The radial pulse, located at the wrist, is often the preferred site for assessing peripheral pulse because of its accessibility and dependability. The process of determining the radial pulse involves several steps:
The radial pulse, located at the wrist, is often the preferred site for assessing peripheral pulse because of its accessibility and dependability. The process of determining the radial pulse involves several steps:
1.4K
00:57Population Growth
28.1K
Population size is dynamic, increasing with birth rates and immigration, and decreasing with death rates and emigration. In ideal conditions with unlimited resources, populations can increase exponentially, which plots as a J-shaped growth rate curve of population size against time. This type of curve is characteristic of newly-introduced invasive species, or populations that have suffered catastrophic declines and are rebounding.
28.1K