title: Hematoma formation after diagnostic angiography: effect of catheter size.
abstract: The authors studied the effect of catheter size on the development of hematomas after catheterization. Four hundred ninety-nine patients who underwent routine diagnostic angiography were randomized to receive either 5-F or 7-F catheters. Small hematomas were more frequent in the 7-F catheter group (P less than .05); however, there was no difference in the frequency of larger hematomas between groups. Compression time was slightly but significantly (P less than .001) longer in the 7-F group. When catheter size; duration of the procedure; and patient age, weight, blood pressure and coagulation status were considered as independent variables, patient weight was the most accurate predictor of hematoma formation. The authors conclude that catheter size does not affect the development of a clinically significant hematoma after diagnostic angiography and that other factors such as patient weight are more important in this regard.
authors.affiliation: Department of Radiology, University of Iowa Hospitals and Clinics, Iowa City 52242.
authors.forename: A H
authors.initials: AH
authors.lastname: Cragg
authors.forename: N
authors.initials: N
authors.lastname: Nakagawa
authors.forename: T P
authors.initials: TP
authors.lastname: Smith
authors.forename: K S
authors.initials: KS
authors.lastname: Berbaum
mesh_terms: D000792:Angiography / Q000009:adverse effects* / Q000295:instrumentation; D001835:Body Weight; D002404:Catheterization / Q000009:adverse effects / Q000295:instrumentation*; D005263:Femoral Artery; D006406:Hematoma / Q000453:epidemiology / Q000209:etiology*; D006801:Humans; D008875:Middle Aged; D015995:Prevalence; D011446:Prospective Studies; D013997:Time Factors