Abstract
Background
Lower limb amputations represent a high social, economic and health burden. Most of them are preventable and reflect areas for improvement in health care, making it essential to know their epidemiology.
Materials and Methods
This is a retrospective population-based cross-sectional analysis on all lower limb amputations performed in public hospitals in Sao Paulo between 2009 and 2020, the most populous Brazilian state, with 46 million inhabitants. Using a public database, we evaluated types, rates and trends of the amputations performed, main etiologies leading to the indication for amputation, hospital length of stay and in-hospital mortality rates, demographics of the amputees and procedure costs.
Results
In total, 180,595 lower limb amputations and surgical revision of amputations were performed, with toe amputations (45%) and major amputations (33%) being the most frequent types of surgeries, with a recent significant increase in the rates for both these procedures. Peripheral artery disease was the most frequent etiology, followed by diabetes mellitus, with both showing an upward trend over the years. Most patients were male (69.3%), Caucasians (55.6%) and elderly. August was the month with the highest number of amputations in all years. Overall in-hospital mortality after lower limb amputations was 6.6%. Total reimbursed by the government was US$ 67,675,875.55.
Conclusions
Peripheral artery disease is the most frequent underlying diagnosis for lower limb amputations, followed by diabetes mellitus, with both showing an upward trend over the years. We observed seasonality in procedure rates, with peaks in August in all years.
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Abbreviations
- LEA:
-
Lower extremity amputation
- HIC:
-
High-income countries
- LMIC:
-
Low- and middle-income countries
- PAD:
-
Peripheral artery disease
- DM:
-
Diabetes mellitus
- ICD-10:
-
International classification of diseases-tenth revision
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Acknowledgements
We thank Rogerio Ruscitto do Prado, PhD, for his statistical consultation.
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The Ethics Committee of the Hospital Israelita Albert Einstein approved this study. Since we used a publicly available database with de-identified entries, a waiver of informed consent forms was requested and granted by the Institutional Review Board.
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Institution where the study was performed: Hospital Israelita Albert Einstein, Department of Vascular and Endovascular Surgery.
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Biagioni, R.B., Louzada, A.C.S., Biagioni, L.C. et al. Cross-Sectional Analysis of 180,595 Lower Limb Amputations in the State of Sao Paulo Over 12 Years. World J Surg 46, 2498–2506 (2022). https://doi.org/10.1007/s00268-022-06631-9
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DOI: https://doi.org/10.1007/s00268-022-06631-9