Acute and subacute effects of the ultrasonic blade and electrosurgery on nerve physiology

Figures & data

Fig. 1. The Harmonic SYNERGY^® with Hooked Blade (inset).

Table I. Summary of results at Days 1 and 7.

Measure	Sham	HB	p-value	ES	p-value
Day 1 (3 h)
CAP (mV ms)	1356	1858	0.107	529	0.005
CV (m/s)	63.5	60.7	0.937	35.3	0.006
VFH Force (g)	–	25.4	–	100.8	< 0.001
β-APP (%)	38.1	38.3	0.855	57.5	0.002
Leukocytes (%)	16.3	11.3	0.357	35.5	0.002
Day 7
CAP (mV ms)	1048	1733	< 0.001	479	< 0.001
CV (m/s)	61.2	72.4	0.015	33.0	< 0.001
VFH force (g)	–	15.0	–	136.0	< 0.001
β-APP (%)	14.0	24.4	0.137	70.6	< 0.001
Leukocytes (%)	10.7	8.1	0.637	33.8	< 0.001

The p values are for comparisons between the energized device (HB or ES) and the negative control (sham), except for the case of VFH, where the comparison is between HB and ES.

Fig. 2. CAP for the acute 3-h phase with baseline adjustment. HB: Harmonic Blade, ES: Electrosurgery.

Fig. 3. Means of CV for Days 1 and 7. HB: Harmonic Blade, ES: Electrosurgery.

Fig. 4. Leukocyte inflammation measured via H&E staining. HB: Harmonic Blade, ES: Electrosurgery.