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Impact of femoro-distal bypass on major lower limb amputation rate
F G Quigley1, J Ling, J Avramovic
1Townsville General Hospital, Queensland, Australia.
Insights
Increasing infrapopliteal bypasses in vascular surgery correlated with a significant reduction in major limb amputations. This suggests distal bypass procedures are crucial for limb salvage and improving patient outcomes.
Area of Science:
- Vascular Surgery
- Limb Salvage Procedures
Background:
- Limb salvage is a key goal in vascular surgery.
- The impact of distal bypasses on amputation rates has been challenging to quantify.
Purpose of the Study:
- To analyze the relationship between infrapopliteal bypasses and major limb amputation rates.
- To evaluate trends in amputation and bypass procedures over two distinct periods.
Main Methods:
- Retrospective analysis of major limb amputations and infrapopliteal bypasses.
- Comparison of data from two consecutive 16-month periods.
Main Results:
- Major limb amputations decreased from 34 to 13 between the two periods.
- Infrapopliteal bypasses increased from 4 to 21 during the same timeframe.
Conclusions:
- A rise in distal bypass surgeries was associated with a decline in major amputations.
- Improved imaging (digital subtraction angiography) and vascular surgery consultation likely contributed to these positive trends.
Background:
Limb salvage is one of the cardinal aims of vascular surgery, but the influence of distal bypasses on amputation rates has been difficult to demonstrate.
Methods:
The incidence and indications for major limb amputations and infrapopliteal bypass during two consecutive 16-month periods were analysed.
Results:
There was a decrease in the number of major amputations from 34 during the first period to 13 in the second, while the number of bypasses to the infrapopliteal arteries increased from four in the first period to 21 in the second.
Conclusions:
An increase in the incidence of bypasses to the infrapopliteal arteries was matched by a decrease in the number of major amputations. Factors that may have contributed to the increase in the incidence of distal bypass and the decrease in the number of amputations include the availability of digital subtraction angiography, and a change in referral patterns within the hospital so that, except for trauma, all patients who were considered to be candidates for major amputation were assessed by a vascular surgeon.