Clinical Study
Harmonic Scalpel versus Conventional Haemostasis in Neck Dissection: A Prospective Randomized Study
Table 1
Demographic characteristics, stage of the tumour, and type of surgical procedure in harmonic scalpel (HS) and conventional hemostasis (CH) groups.
| | | HS group () | CH group () | Total () |
| | Age (years) (range) | 61.2 (35–79) | 60.4 (38–81) | | | Sex (M/F) | 26/4 | 27/4 | 53/8 | | Primary site | | | | | Oral cavity | 4 | 5 | 9 (13%) | | Oropharynx | 10 | 8 | 18 (29%) | | Larynx | 9 | 11 | 20 (32%) | | Hypopharynx | 8 | 6 | 14 (26%) | | T stage | | | | | T1 | 4 | 5 | 9 (13%) | | T2 | 18 | 17 | 35 (58%) | | T3 | 7 | 6 | 13 (22%) | | T4 | 2 | 2 | 4 (7%) | | N stage | | | | | N0 | 13 | 14 | 27 (44%) | | N1 | 8 | 7 | 15 (25%) | | N2 | 6 | 5 | 11 (18%) | | N3 | 4 | 4 | 8 (13%) | | Primary surgery | | | | | Wide excision | 13 | 9 | 22 (36%) | | Free-flap reconstruction | 9 | 10 | 19 (31%) | | Partial laryngectomy | 8 | 9 | 17 (28%) | | Total laryngectomy | 1 | 2 | 3 (5%) | | Neck dissection | | | | | mRND | 24 | 22 | 46 (47%) | | Type I | 6 | 7 | 13 (14%) | | Type II | 7 | 6 | 13 (14%) | | Type III | 11 | 9 | 20 (21%) | | SND (I–III) | 12 | 14 | 26 (27%) | | SND (II–IV) | 13 | 12 | 25 (26%) |
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