Outcome of Percutaneous Transluminal Angioplasty in Diabetic Patients with Critical Limb Ischaemia

Abstract

Objective:

We investigated the clinical outcome of percutaneous transluminal angioplasty (PTA) which has not been fully established in diabetic patients with critical limb Ischaemia (CLI) compared with non-diabetics.

Design and patients:

A total of 73 limbs of 52 patients (50 limbs of 34 diabetic patients and 23 limbs of 18 non-diabetics) who underwent PTA for CLI (Rutherford-Becker category 4, 5 or 6) were enrolled. Rates of amputation and restenosis, and ankle brachial index (ABI), were assessed before and after PTA during a 36-month follow-up period.

Results:

Diabetic patients had a higher rate of major amputations after PTA (10 vs. 0%, P<0.05); however, total amputation (12.0 vs. 8.7%, P=0.62) and restenosis rates (4.0 vs. 8.7%, P=0.38) were not significantly different compared with non-diabetic patients. ABI at 3 months after PTA was significantly improved in both diabetic and non-diabetic patients (0.70±0.20 vs. 0.93±0.19, P<0.01 in diabetic patients; 0.69±0.25 vs. 0.92±0.17, P<0.01 in non-diabetics). Improved ABI was maintained for 36 months in both groups and did not show a significant difference (0.88±0.21 vs. 0.89±0.20, P=0.89).

Conclusion:

Our results, showing that the outcome of PTA in diabetic patients is not inferior to that in non-diabetics, suggest the potential benefit of primary PTA, instead of bypass surgery, for CLI in diabetic patients who are at high risk of perioperative complications.

Key words

critical limb ischaemia - peripheral arterial disease - percutaneous transluminal angioplasty - diabetes

^* First 2 authors equally contributed to this study.

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