A randomized, prospective, parallel group study comparing the Harmonic Scalpel to electrocautery in thyroidectomy

Area of Science:

• Surgical Innovation
• Minimally Invasive Surgery
• Endocrine Surgery

Background:

• Effective hemostasis is critical for successful thyroidectomy.
• Electrocoagulation carries risks of thermal injury to surrounding structures.
• The Harmonic Scalpel (HS) offers simultaneous cutting and coagulation via mechanical vibration, minimizing thermal spread.

Purpose of the Study:

• To compare the Harmonic Scalpel (HS) with traditional electrocoagulation for thyroidectomy.
• To evaluate differences in procedure parameters and complication rates.
• To assess the safety and efficacy of HS in thyroid surgery.

Main Methods:

• A randomized controlled trial involving 60 patients undergoing thyroidectomy.
• Patients were divided into two groups: Harmonic Scalpel (HS) and electrocautery with ligatures.
• Key parameters compared included operative time, blood loss, ligature use, and complication incidence.

Main Results:

• The HS group demonstrated a significantly shorter operative time (25 minutes less, P = .005).
• Fewer ligatures were required in the HS group (median 1 vs. 17, P < .001).
• Blood loss was comparable, and no significant differences in nerve palsy or hypoparathyroidism were observed.

Conclusions:

• The Harmonic Scalpel (HS) is a more efficient hemostatic tool for thyroidectomy, reducing operative time.
• HS use in thyroidectomy leads to fewer ligatures compared to electrocoagulation.
• HS provides a safe alternative for hemostasis in thyroid surgery, with comparable complication rates.