The objective of this study was to determine whether ankle peak systolic velocity (APSV) can predict nonhealing in diabetic foot lesions. Diabetic patients referred for duplex scanning of the lower extremity arteries were included if they had foot lesions such as ulcers, gangrene, or tissue necrosis and had no palpable pedal pulses. End points were healed or healing foot lesions, revascularization, major amputation, or death. One hundred consecutive limbs were included. Forty-three limbs with diabetic foot lesions reached the end point of adequate healing or complete healing, whereas 57 limbs had nonhealing lesions. The APSV was significantly higher in limbs with healed or healing lesions compared with limbs with nonhealed lesions: 53.0 cm/s (41.8-81.6) versus 19.2 cm/s (12.4-26.5), p < .0001. At a cutoff point of 35 cm/s, the APSV showed a sensitivity of 92.9% (95% confidence interval [CI] 82-97), a specificity of 90.6% (95% CI 76-96), a positive predictive value of 92.9%, and a negative predictive value of 90.6% in predicting nonhealing of diabetic foot lesions. There was a significant difference between the APSV before and after revascularization: 20.4 cm/s (12.4-26.3) versus 48.8 cm/s (36.1-80.8), p < .0001. APSV could predict nonhealing of diabetic foot lesions with a high degree of accuracy in this group of patients.

The objective of this study was to determine the prevalence of significant carotid artery disease (SCAD) in a cohort of Egyptian patients to compare it with matched groups of patients in published data of Western populations. One thousand consecutive patients referred for color flow duplex scanning of the carotid arteries were included. SCAD was defined as carotid stenosis > or = 50% or occlusion. There were 567 males (56.7%), and the mean age was 60.4 years. There were 382 (38.2%) patients presenting with and 617 (61.7%) patients without specific carotid territory symptoms. SCAD was significantly more prevalent in patients aged > or = 60 (13.2%, vs 6.25%; p < .001), in symptomatic patients (16.45% vs 6.32%; p < .001), in diabetics (15.96% vs 7.39%; p < .001), in patients with ischemic heart disease (17.65% vs 7.22%; p < .001), in hypertensive patients (12% vs 7.54%; p = .025), and in patients with dyslipidemia (12.53% vs 6.56%; p < .025). The prevalence of SCAD in this cohort of Egyptian patients was similar to that of matched patients of Western populations. Screening for SCAD in patients with specific carotid territory symptoms is recommended. Screening of asymptomatic subjects could be considered if they are > or = 60 years of age and have three or more associated risk factors.

Congresses.-Scientific results of the official project presented during the Universal EXPO (World Fair) DUBAI on Feb 5 2022, endorsed by 71 vascular scientific societies, recognized by the Communication Coordination Committee for the United Nations.

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