Intra-operative assessment of technical defects after carotid endarterectomy: a comparison between angiography and colour duplex scan.
We compared the intra-operative diagnostic value of CDS vs IA-DSA in identifying major and minor technical defects after CEA. Between August 1997 and December 1998, 138 consecutive patients undergoing 141 carotid endarterectomies were intra-operatively investigated with colour duplex scan and intra-arterial digital subtraction angiography. Thirty-six (25.5%) technical defects were identified. Four (11.1%) major defects were detected by both methods and they were immediately corrected. Fifteen (41.6%) minor defects were detected by both methods, thirteen (36.1%) minor defects were detected by colour duplex but ignored by angiography. Angiography detected four (11.1%) kinkings missed with the colour duplex. The overall sensitivity of both methods for major defect was 100%. The sensitivity of colour duplex for minor defects was 87% vs 59% for angiography. On the basis of our study, colour duplex could be considered the choice method for quality control after carotid endarterectomy.
Valenti
D
D
Department of Cardiac and Vascular Diseases, Vascular Surgery Unit, Mauriziano Hospital, Corso Turati 62, 10128 Turin, Italy.
Gaggiano
A
A
Berardi
G
G
Ferri
M
M
Mazzei
R
R
Roda
G
G
Palombo
D
D
D000368:Aged; D015901:Angiography, Digital Subtraction; D002343:Carotid Artery, Internal / Q000000981:diagnostic imaging / Q000601:surgery*; D016893:Carotid Stenosis / Q000601:surgery*; D002983:Clinical Competence; D016894:Endarterectomy, Carotid / Q000592:standards*; D005260:Female; D006801:Humans; D007430:Intraoperative Care / Q000379:methods*; D008297:Male; D008875:Middle Aged; D011786:Quality Control; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D018616:Ultrasonography, Doppler, Duplex