The Value of Pressure Indexes in Predicting the Outcome of Diabetic Foot Ulcers as a Guide to Further Management.

INTRODUCTION

Diabetic foot ulcers (DFUs) stand out as a prevalent and debilitating condition. Furthermore, the progression of diabetes-related hyperglycemia and associated conditions such as peripheral arterial disease exacerbates the risks of DFUs, including complications like infection and gangrene. Given the significant burden of DFUs, there is a pressing need to improve preventive and therapeutic strategies. This study investigates the clinical profiles of patients with DFUs, including the importance of smoking and intermittent claudication, evaluates management strategies based on the vascular status assessed through Doppler scans, and provides insights into the importance of ankle-brachial pressure index (ABPI) and toe brachial index (TBI) values, which play a vital role in predicting and managing ulcer healing outcomes, highlighting the importance of vascular assessment in treatment planning.

AIM

The study aims to assess the clinical profile of patients with DFUs based on their vascularity status using Doppler scans, predict the outcome of the ulcer using indexes like ABPI and TBI values, and decide on further management.

MATERIALS AND METHODS

This prospective study was conducted over 24 months, from August 2022 to July 2024, at the Department of General Surgery, Dr. D. Y. Patil Medical College, Hospital and Research Centre, Pimpri, Pune. The study included 50 patients presenting with DFUs. Approval was obtained from the Institutional Ethics Committee, and informed consent was obtained from all participants. A detailed history was taken, including the history of smoking and intermittent claudication, and a thorough examination of the ulcer was performed. HbA1c levels were measured, Doppler scans of the lower limbs were done, and the ABPI and TBI values were calculated. Management strategies were determined based on the assessed vascular status, leading to either medical or surgical interventions.

RESULTS

Twenty-one (42%) patients who presented with DFUs had a positive history of intermittent claudication, demonstrating a significant association between the history of intermittent claudication and the Doppler findings. Thirty-seven (74%) patients gave a positive history of smoking, which revealed a significant association between the history of smoking and Doppler findings. Thirty-eight (76%) patients had an ABPI of <0.9, out of which 33 (66%) patients showed an improved outcome of the ulcer after necessary management. There is also a statistically significant association between the ABPI and Doppler findings. Sixteen (32%) of patients had a TBI of <0.65, of which all showed an improvement. There is a highly significant association between TBI and the Doppler findings.

CONCLUSION

This study concludes that integrated routine assessment of ABPI and TBI into DFU management protocols is necessary to guide treatment decisions and monitor response to therapy. Treatment and prevention of diabetes-related complications affecting the lower extremities require a dedicated interdisciplinary approach.