Comparative Evaluation of LigaSure Versus Conventional Bipolar Diathermy in Thyroid Surgery: Operative and Postoperative Outcome.
Thyroidectomy is a standard surgical procedure for treating benign and malignant thyroid disorders. Achieving precise hemostasis is essential to minimize intraoperative bleeding, preserve vital structures such as the recurrent laryngeal nerve and parathyroid glands, and prevent complications like hematoma and infection. Conventional bipolar diathermy has long been used to achieve hemostasis, but it can result in greater lateral thermal spread, prolonged operative time, and potential thermal injury to adjacent tissues. LigaSure, an advanced vessel sealing system, combines pressure and energy to achieve permanent vessel fusion and can seal vessels up to 7 mm in diameter with minimal lateral thermal damage. Its use in thyroid surgery has been associated with improved surgical field visibility, reduced intraoperative bleeding, and shorter operative time compared to bipolar diathermy. Additionally, LigaSure may lower the risk of postoperative complications, including transient hypocalcemia and recurrent laryngeal nerve palsy, due to its precise energy delivery and limited collateral damage. However, existing studies have shown variable results regarding the magnitude of these benefits, and the cost-effectiveness of LigaSure compared with conventional bipolar diathermy remains uncertain. Therefore, a prospective randomized controlled trial is required to provide conclusive evidence regarding its role in reducing operative time and postoperative complications during thyroidectomy.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
30
LigaSure is an advanced vessel-sealing system that uses pressure and bipolar energy with real-time feedback to seal vessels up to 7 mm. It limits thermal spread, provides consistent sealing, and reduces the need for sutures-making it distinct from standard bipolar diathermy and other energy devices.
Bipolar diathermy uses two closely spaced electrodes to deliver controlled coagulation and cutting with minimal current spread. Unlike LigaSure or other advanced sealing devices, it lacks an automatic feedback system and does not fuse larger vessels, relying instead on direct thermal coagulation. It is simple, widely available, cost-effective, and suitable mainly for small-vessel hemostasis.
Operative time
Total time (from skin to skin)Time taken for dissection and haemostasis
Time frame: during surgery 2 hours
Number of ligatures used
Time frame: during surgery
Postoperative pain
Pain assessment through the VAS was explained to the patient (through selection of the number that represents his/her pain with 0 = no pain, and 10 = worst pain
Time frame: 24 hours postoperative
Transient or permanent hypocalcaemia
Time frame: 24 hours postoperative
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Thyroidectomy is a standard surgical procedure for treating benign and malignant thyroid disorders.