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Hematoma formation after diagnostic angiography: effect of catheter size
A H Cragg1, N Nakagawa, T P Smith
1Department of Radiology, University of Iowa Hospitals and Clinics, Iowa City 52242.
Insights
Catheter size does not significantly impact clinically significant hematoma risk after diagnostic angiography. Patient weight is a more accurate predictor of hematoma formation than catheter size.
Area of Science:
- Cardiovascular Medicine
- Interventional Radiology
- Vascular Surgery
Background:
- Catheterization procedures carry risks, including hematoma formation.
- The influence of catheter size on post-procedure hematoma development requires further clarification.
Purpose of the Study:
- To investigate the relationship between catheter size (5-F vs. 7-F) and hematoma development after diagnostic angiography.
- To identify key predictors of hematoma formation in patients undergoing catheterization.
Main Methods:
- Randomized controlled trial involving 499 patients undergoing routine diagnostic angiography.
- Patients were randomized to receive either 5-French (F) or 7-F catheters.
- Statistical analysis considered catheter size, procedure duration, patient age, weight, blood pressure, and coagulation status.
Main Results:
- Small hematomas were more frequent in the 7-F catheter group (P < .05).
- No significant difference in the incidence of larger hematomas between 5-F and 7-F groups.
- Compression time was significantly longer for 7-F catheters (P < .001).
- Patient weight emerged as the most accurate predictor of hematoma formation.
Conclusions:
- Catheter size does not appear to influence the development of clinically significant hematomas after diagnostic angiography.
- Patient weight is a more critical factor in predicting hematoma formation than catheter size.
- Clinical decisions regarding catheter selection should consider patient-specific factors like weight.
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.