The Doppler blood flow monitor tracks blood flow continuously, even during a procedure.¹ when compared to clinical monitoring alone, the Doppler blood flow monitor associated with significantly higher salvage rates. ² ³
When a free-flap failure is suspected, it takes significant resources to verify and repair the compromised anastomosis. This can result in cancelled procedures to make way for a possible salvage procedure.
Because the Doppler system offers objective monitoring at an earlier stage, it has been associated with a decrease in returns to surgery.¹
When compared with clinical monitoring alone, the Doppler system is associated with significantly higher free-flap salvage rates.² ³ A systematic review and meta-analysis by Chang et al. (2016) showed a reported increase of between 57% and 73%.²
The systematic review by Chang et al. showed an overall failure rate of 2.11% for the implantable Doppler groups.² Groups that used clinical monitoring alone had an overall failure rate of 4.21%.² The review concluded that using an implantable Doppler may reduce the number of flap failures by at least 37%.²
1. Wax MK. The role of the implantable Doppler probe in free flap surgery. Laryngoscope. 2014;124(Suppl 1):S1-S12.
2. Chang TY, Lee YC, Lin YC, et al. Implantable Doppler probes for postoperatively monitoring free flaps: efficacy. A systematic review and meta-analysis. Plast Reconst Surg Glob Open. 2016;4(11):e1099.
3. Lenz Y, Gross R, Penna V, et al. Evaluation of the implantable Doppler probe for free flap monitoring in lower limb reconstruction. J Reconstr Microsurg. 2018;34(3):218-226.