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Increased Risk of Coronary Artery Dissection During Coronary Angiography with 6F Catheters

Cardiology Service, Walter Reed Army Medical Center, Washington, DC

Bujung Zen

Cardiology Service, Walter Reed Army Medical Center, Washington, DC

Dale C. Wortham

Cardiology Service, Walter Reed Army Medical Center, Washington, DC

Clarence Pearson

Cardiology Service, Walter Reed Army Medical Center, Washington, DC

The use of smaller sized catheters for coronary angiography (CA) is increasing, but little is known about the safety of CA with 6F catheters. The authors reviewed all cases of CA in which 6F and 8F catheters were used in adult patients between 1988 and June, 1990. There were 597 patients in the 6F group and 2,409 patients in the 8F group. Cases of CA with 6F catheters were more likely to be elective (95% vs 87%), to have no coronary disease (35% vs 24%), and to be performed by nonfirst-year fellows (70% vs 54%) when compared with CA with 8F catheters. There were 5 cases of coronary artery dissection. The incidence of dissections was significantly higher (p=.007) in the 6F group (0.67%) than in the 8F group (0.04%). The incidence of dissections was highest for first-year fellows using 6F catheters (1.7%), which was significantly higher (p = .008) than for first-year fellows using 8F catheters. The incidence of major vascular complications tended to be lower (p=.068) in the 6F group (0.17%) than in the 8F group (0.95%). In summary, CA with 6F catheters is associated with an increased risk of coronary artery dissection, particularly with less experienced operators, but tends to be associated with a lower risk of major vascular complications.

Angiology, Vol. 44, No. 2, 107-113 (1993)
DOI: 10.1177/000331979304400204


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