AIMS: Data about long-term clinical outcomes of revascularization procedures, especially for autologous cell therapy (ACT), in diabetic patients with chronic limb-threatening ischaemia (CLTI) are lacking. The aim of our study was to compare the mortality and amputation rates in patients with diabetic foot ulcers (DFU) and CLTI treated by ACT with patients treated by repeated percutaneous transluminal angioplasty (re-PTA) and those treated conservatively. MATERIALS AND METHODS: One-hundred and thirty patients with DFU and CLTI (defined as transcutaneous oxygen pressure-TcPO2 <30 mmHg after unsuccessful standard revascularization) treated in our foot clinic over 9 years were enrolled in the study. Forty-five patients were treated by ACT, 43 patients underwent re-PTA, and 42 patients were treated conservatively and formed the control group. Overall survival, amputation-free survival (AFS) and major amputation rate were assessed over a 7-year follow-up period. RESULTS: Baseline demographic characteristics and comorbidities were similar between groups. However, patients in ACT and control groups had significantly worse baseline angiograms in accordance with Graziani and GLASS (infrapopliteal region) classifications than the re-PTA group (both p < 0.001), but there were no differences in baseline values of TcPO2 between groups. AFS in the ACT and re-PTA groups were significantly longer compared to control (both p < 0.001). The rate of major amputation was significantly lower in both active groups (both p < 0.001). The re-PTA group showed significantly longer overall survival compared to the control group (p < 0.001), but there was no significant difference between ACT and control groups (p = 0.063) and ACT and re-PTA groups (p = 0.081) in this parameter. CONCLUSIONS: Our study showed significantly longer AFS and lower major amputation rates in patients treated by ACT and re-PTA in contrast to patients treated conservatively. Overall survival was significantly longer only in the re-PTA group. ACT was shown to be effective in long-term limb salvage in people with no-option CLTI.

• Keywords
• cellular research, clinical trial, diabetes complications, effectiveness,
• MeSH
• Amputation, Surgical statistics & numerical data   MeSH
• Angioplasty * MeSH
• Transplantation, Autologous MeSH
• Cell- and Tissue-Based Therapy * MeSH
• Chronic Limb-Threatening Ischemia * therapy   mortality   MeSH
• Diabetic Foot * therapy   mortality   complications   surgery   MeSH
• Ischemia * therapy   mortality   MeSH
• Conservative Treatment * MeSH
• Middle Aged MeSH
• Humans MeSH
• Aged MeSH
• Treatment Outcome MeSH
• Limb Salvage statistics & numerical data   MeSH
• Check Tag
• Middle Aged MeSH
• Humans MeSH
• Male MeSH
• Aged MeSH
• Female MeSH
• Publication type
• Journal Article MeSH
• Comparative Study MeSH