Randomized Controlled Trial Comparing the Utility of an Ultrasonic Coagulating Device (UCSD) With Electrothermal Bipolar Vessel Sealer (EBVS) in Thyroid Surgery.
Energy devices are used routinely during thyroid surgery to aid surgical dissection and
haemostasis. The newer generation energy devices have several advantages over older
machines. First, the newer devices deliver more focussed thermal application and thus are
less likely to cause collateral injury to surrounding healthy tissue. This is particularly
relevant in thyroid surgery because the thyroid gland is in close proximity to vital nerves
that control our airway and glands that regulate calcium metabolism. Secondly, the newer
energy devices have multifunctional properties and are capable of sealing, blunt dissection,
grasping and dividing tissue. This is advantageous in thyroid surgery as the operating field
has many narrow areas within and the potential reduction in the exchange of instruments
Currently, two of these newer generation energy devices are available for use in Singapore
General Hospital and National Cancer Centre Singapore. Both devices are similarly priced;
one is based on an ultrasonic vibrating blade (UCSD) to cut and coagulate tissue while the
other uses bipolar electrical energy and pressure to form a seal and a micro blade to divide
the sealed tissue (EBVS). To date, clinical studies comparing both devices have only been
done on animal models and focus on sealing times in animal blood vessels.
We aim to compare the effectiveness of these two newer generation energy devices in thyroid
surgery by looking at the incidence of post surgical complications, post operative drainage
as well as the ease of use as reflected in the operating time.
Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Outcomes Assessor), Primary Purpose: Treatment
Duration of Surgery
Kife to skin time to closure time.
Day 1: Day of Surgery
Gopal Iyer, Consultant
National Cancer Centre, Singapore
Singapore: Clinical Trials & Epidemiology Research Unit (CTERU)
NCCS ED 2011739D