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The perfusion index as a method of assessing epidural anaesthesia efficacy in healthy dogs

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23 sept 2024

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Fig. 1.

Identification of the catheter position by computed tomography. Arrowhead – location of epidural catheter
Identification of the catheter position by computed tomography. Arrowhead – location of epidural catheter

Mean ± the standard deviation of perfusion index in dogs administered saline (Control) or lidocaine via single-port or multiple-port epidural catheter

Group Time points P-value (within group)
T0 T1 T2 T3 T4 T5 T6 T7
Control 1.60 ± 0.55 2.24 ± 1.01 2.30 ± 0.99 2.28 ± 0.97 2.28 ± 0.92 2.26 ± 0.81 2.26 ± 0.94 2.02 ± 0.62 0.94
Single-hole port 2.08 ± 1.01 1.94 ± 1.24 1.92 ± 1.36 1.94 ± 1.21 1.96 ± 1.24 2.00 ± 1.22 2.02 ± 1.17 2.10 ± 1.17 >0.9999
P-value (vs control) 0.44 0.72 0.67 0.67 0.69 0.73 0.76 0.91
Multiple-hole port 2.64 ± 1.56 3.02 ± 1.50 2.98 ± 1.62 2.78 ± 1.54 2.74 ± 1.57 2.73 ± 1.62 2.73 ± 1.61 2.73 ± 1.60 >0.9999
P-value (vs control) 0.27 0.42 0.50 0.60 0.63 0.62 0.63 0.44