Objective: To determine preoperative ventricular function in vascular amputees by measuring N-terminal pro-brain natriuretic peptide (NT-proBNP) and to analyse the relationship between NT-proBNP levels and 30-day postoperative mortality.
Design: Prospective pilot study.
Subjects And Methods: In 19 patients planned for a lower limb amputation for non-reconstructable peripheral arterial disease NT-proBNP was measured the day before amputation.
Results: Four amputees died within 30 days after the amputation. In 17 of 19 patients NT-proBNP values were found more than 2 standard deviations above the age corrected reference value. Pre-amputation NT-proBNP levels did not differ significantly between non-survivors and survivors (P = 0.162).
Conclusion: Preoperative NT-proBNP levels are not significantly related to 30-day mortality after lower limb amputation procedure. Preoperative NT-proBNP levels are very high, indicating that serious ventricular dysfunction may be present in vascular amputees.
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